Display device

Abstract

Disclosed is a display device including: a light emitting device layer including a first light emitting region, a second light emitting region adjacent to the first light emitting region in a first direction, a third light emitting region adjacent to the first light emitting region in a second direction, and a fourth light emitting region adjacent to the third light emitting region in the first direction; an encapsulation layer covering the light emitting device layer; a touch electrode disposed on the encapsulation layer and having a mesh structure that does not overlap the first to fourth light emitting regions; a black matrix including a plurality of opening portions overlapping the first to fourth light emitting regions, disposed on the touch electrode, covering the entire touch electrode; and a plurality of color filters filled in each of the plurality of opening portions and having a larger area than each of the first to fourth light emitting regions, wherein an average width of a first portion of the touch electrode extending in the second direction between the first and second light emitting regions is different from an average width of a second portion of the touch electrode extending in the first direction between the first and third light emitting regions.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of Korean Patent Application No. 10-2023-0162258, filed on November 21, 2023, which is hereby incorporated by reference into this application as if fully set forth herein. Technical Field

[0003] The present invention relates to a display device, and more particularly, to a display device with a touch sensing function. Background Art

[0004] As the information society develops, the demand for display devices for displaying images is increasing, and various display devices such as liquid crystal displays and organic light emitting displays are used.

[0005] In order to provide users with more various functions, the display device can recognize the user's touch on the display panel and perform input processing based on the recognized touch. For example, a plurality of touch electrodes can be arranged in the active area of ​​the display panel. In addition, the display device can sense the touch by sensing the capacitance change of the touch electrode caused by the user's touch. Summary of the invention

[0006] Accordingly, the present invention is directed to a display device that substantially obviates one or more problems due to limitations and disadvantages of the related art.

[0007] An aspect of the present invention is to provide a display device that simultaneously secures a viewing angle and a touch sensing performance.

[0008] The additional advantages and features of the present invention will be described in part in the following description, and in part will become obvious to those skilled in the art after studying the following content or can be known from the practice of the present invention. The objects and other advantages of the present invention can be realized and obtained through the structures specifically pointed out in the written description and the drawings.

[0009] To achieve these and other advantages, according to the intent of the present invention, as embodied and broadly described herein, there is provided a display device, which may include: a light-emitting device layer, the light-emitting device layer including a first light-emitting area, a second light-emitting area adjacent to the first light-emitting area in a first direction, a third light-emitting area adjacent to the first light-emitting area in a second direction, and a fourth light-emitting area adjacent to the third light-emitting area in the first direction; an encapsulation layer covering the light-emitting device layer; a touch electrode, the touch electrode being disposed on the encapsulation layer and having a mesh structure that does not overlap with the first light-emitting area, the second light-emitting area, the third light-emitting area, and the fourth light-emitting area; a black matrix, the black matrix including a plurality of opening portions overlapping with the first light-emitting area, the second light-emitting area, the third light-emitting area, and the fourth light-emitting area, being disposed on the touch electrode and covering the entire touch electrode; and a plurality of color filters, the color filter filling each of the plurality of opening portions and having a larger area than each of the first light-emitting area, the second light-emitting area, the third light-emitting area, and the fourth light-emitting area. An average width of a first portion of the touch electrode extending along the second direction between the first and second light emitting areas may be different from an average width of a second portion of the touch electrode extending along the first direction between the first and third light emitting areas.

[0010] According to an embodiment, the first light emitting area emits light of a first color, the second light emitting area emits light of a second color, and the third light emitting area and the fourth light emitting area may emit light of a third color.

[0011] According to an embodiment, each of the first light emitting area, the second light emitting area, the third light emitting area, and the fourth light emitting area may have a circular shape in a plan view.

[0012] According to an embodiment, a distance between the first and second light emitting areas is shorter than a distance between the first and third light emitting areas, the first portion has a first width, and the second portion may have a second width greater than the first width.

[0013] According to an embodiment, the touch electrode further includes a third portion extending from an intersection of the first portion and the second portion along the second direction and adjacent to the fourth light emitting area, and a width of the third portion may be greater than the second width.

[0014] According to an embodiment, the first light-emitting area, the second light-emitting area, the third light-emitting area and the fourth light-emitting area constitute a pixel, and the distance between the fourth light-emitting area of ​​the first pixel and the third light-emitting area of ​​the second pixel adjacent to the first pixel in the first direction may be greater than the distance between the first light-emitting area and the third light-emitting area in the second direction.

[0015] According to an embodiment, a portion of the black matrix not overlapping the touch electrode has a donut shape in a plan view, and the donut shape may have a uniform width.

[0016] According to an embodiment, a width of the first portion of the touch electrode in the first direction and a width of the second portion of the touch electrode in the second direction may be variable.

[0017] According to an embodiment, a minimum width of the first portion of the touch electrode may be different from a minimum width of the second portion of the touch electrode.

[0018] According to an embodiment, the touch electrode further includes a third portion, which is disposed between the third light-emitting area and the fourth light-emitting area and has a variable width in the first direction, and a minimum width of the third portion may be different from a minimum width of the first portion and a minimum width of the second portion.

[0019] According to an embodiment, the light-emitting device layer includes: a plurality of first electrodes corresponding to the first light-emitting area, the second light-emitting area, the third light-emitting area and the fourth light-emitting area, each of the first electrodes having a circular shape in a plan view; a dam covering a portion of the first electrodes and arranged between the first electrodes; a light-emitting layer arranged on the first electrodes; and a second electrode arranged on the light-emitting layer, wherein the dam may be black.

[0020] According to an embodiment, each of the plurality of color filters may have a circular shape in a plan view.

[0021] According to an embodiment, the display device may further include a protection layer disposed between the touch electrode and the black matrix.

[0022] According to an embodiment, the protection layer is in direct contact with the touch electrode, the black matrix, and the color filter, and the protection layer may include an inorganic insulating material.

[0023] According to an embodiment, each of the plurality of color filters may cover a portion of the black matrix.

[0024] According to an embodiment, an area of ​​a first color filter corresponding to the first light emitting area, an area of ​​a second color filter corresponding to the second light emitting area, and an area of ​​a third color filter corresponding to the third light emitting area may be different from each other.

[0025] According to an embodiment, an area of ​​each opening of the black matrix may be larger than an area of ​​each of the first, second, third and fourth light-emitting regions corresponding to the opening.

[0026] It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings, which provide a further understanding of the present invention and are incorporated in and constitute a part of this application, illustrate embodiments of the present invention and together with the description are used to explain the principle of the present invention. In the drawings:

[0028] Figure 1 is an exemplary diagram illustrating a display device according to an embodiment of the present invention;

[0029] Figure 2 It is illustrated in Figure 1 FIG. 1 is a diagram showing an example of a touch electrode included in a display device of FIG. 1 ;

[0030] Figure 3 It is illustrated in Figure 1 FIG. 1 is a diagram showing another example of a touch electrode included in a display device of FIG. 1 ;

[0031] Figure 4 is used to describe Figure 1 FIG. 1 is a diagram showing an example of a touch sensor included in a display device of FIG. 1 ;

[0032] Figure 5 It is a graphical implementation Figure 4 FIG. 1 is a diagram of an example of a touch sensor;

[0033] Figure 6 It is illustrated in Figure 1 A plan view of an arrangement example of touch electrodes included in a display device of ;

[0034] Figure 7 The diagram includes Figure 6 A cross-sectional view of an example of a display device having a touch electrode;

[0035] Figure 8 It is illustrated in Figure 1 A plan view of another example of an arrangement of touch electrodes included in a display device of FIG. 1 ;

[0036] Fig. 9 It is illustrated in Figure 1 FIG. 1 is a plan view of still another example of arrangement of touch electrodes included in a display device of FIG. DETAILED DESCRIPTION

[0037] Reference will now be made in detail to exemplary embodiments of the present invention, some examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numerals will be used throughout the drawings to refer to the same or like parts.

[0038] The advantages and features of the present invention and the methods for implementing the same will be explained by the following embodiments described with reference to the accompanying drawings. However, the present invention can be implemented in different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present disclosure thorough and complete and to fully convey the scope of the present invention to those of ordinary skill in the art.

[0039] The shapes, sizes, proportions, angles and quantities disclosed in the drawings used to describe embodiments of the present invention are merely examples, and therefore, the present invention is not limited to the details illustrated. Similar reference numerals refer to similar elements throughout. In the following description, when it is determined that a detailed description of a related known function or structure would unnecessarily obscure the focus of the present invention, this detailed description will be omitted. When using "including", "having" and "comprising" described in the present invention, other parts may be added unless "only" is used. Terms in the singular may include plural forms unless otherwise indicated.

[0040] In interpreting an element, the element is interpreted as including an error or tolerance range even though there is no explicit description about such error or tolerance range.

[0041] When describing a positional relationship, for example, when the positional relationship between two parts is described as such as "on", "above", "below", "after", one or more other parts may be set between the two parts, unless more restrictive terms such as "directly" or "directly" are used.

[0042] When describing a temporal relationship, for example when a time sequence is described as "after", "subsequently", "next", "before", discontinuity may be included unless more restrictive terms such as "directly", "immediately" or "directly" are used.

[0043] It will be understood that although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish an element from other elements. For example, without departing from the scope of the present invention, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0044] When describing the elements of the present invention, the terms "first", "second", "A", "B", "(a)", "(b)", etc. may be used. These terms are intended to identify the corresponding elements from other elements, and the basis, order or number of the corresponding elements should not be limited by these terms. Regarding expressions such as an element or layer being "connected", "joined" or "adhered" to another element or layer, the element or layer may not only be directly connected or adhered to the other element or layer, but also be indirectly connected or adhered to the other element or layer under the condition that one or more intermediate elements or layers are provided or interposed between the elements or layers, unless otherwise specified.

[0045] The term "at least one of" should be understood to include any and all combinations of one or more of the relevant listed items. For example, the meaning of "at least one of the first item, the second item, and the third item" refers to: the combination of all items listed from two or more of the first item, the second item, and the third item; as well as the first item, the second item, or the third item.

[0046] The features of the various embodiments of the present invention may be combined or combined with each other in part or in whole, and may be technically interoperable and driven with each other in various ways, as can be fully understood by those skilled in the art. The embodiments of the present invention may be implemented independently of each other, or may be implemented together in a mutually dependent relationship.

[0047] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0048] Figure 1 is an exemplary diagram illustrating a display device according to an embodiment of the present invention.

[0049] Reference Figure 1 , the display device 10 may include a substrate SUB, a sub-pixel SP, an encapsulation layer ENCAP and a touch sensor TS.

[0050] A plurality of sub-pixels SP may be arranged on the substrate SUB. Each sub-pixel SP may include a light emitting device ED, a first transistor T1 for driving the light emitting device ED, a second transistor T2 for transmitting a data voltage VDATA to the first transistor T1, a storage capacitor Cst for maintaining a constant voltage during one frame, and the like.

[0051] For example, the first transistor T1 may include: a first node N1 to which a data voltage VDATA may be applied; a second node N2 electrically connected to the light emitting device ED; and a third node N3 to which a driving voltage VDD from a driving voltage line DVL is applied. The first node N1 may be a gate node, the second node N2 may be a source node or a drain node, and the third node N3 may be a drain node or a source node. The first transistor T1 is also referred to as a driving transistor for driving the light emitting device ED.

[0052] For example, the light emitting device ED may include a first electrode (eg, an anode), a light emitting layer, and a second electrode (eg, a cathode). The first electrode may be electrically connected to the second node N2 of the first transistor T1, and a base voltage VSS may be applied to the second electrode.

[0053] The light emitting layer may be an organic light emitting layer including an organic material. In this case, the light emitting device ED may be an organic light emitting diode (OLED). However, the light emitting layer may include an inorganic material, and in this case, the light emitting device ED may be an inorganic light emitting device.

[0054] For example, the second transistor T2 is turned on / off by a scan signal SCAN applied via the gate line GL and may be electrically connected between the first node N1 of the first transistor T1 and the data line DL. The second transistor T2 is also referred to as a switching transistor.

[0055] When the second transistor T2 is turned on by the scan signal SCAN, the data voltage VDATA provided from the data line DL is transmitted to the first node N1 of the first transistor T1.

[0056] The storage capacitor Cst may be electrically connected between the first node N1 and the second node N2 of the first transistor T1.

[0057] Each sub-pixel SP may be Figure 1 As shown, the 2T1C structure includes two transistors T1 and T2 and one capacitor Cst; in some cases, one or more transistors may be further included or one or more capacitors may be further included.

[0058] The storage capacitor Cst is not a parasitic capacitor (eg, Cgs and Cgd) as an internal capacitor that may exist between the first node N1 and the second node N2 of the first transistor T1, but may be an external capacitor intentionally designed outside the first transistor T1.

[0059] For example, each of the first transistor T1 and the second transistor T2 may be an n-type transistor or a p-type transistor.

[0060] Each sub-pixel SP may emit light of a specific color. For example, the sub-pixel SP may emit one of red light, green light, blue light, and white light.

[0061] In addition, as described above, circuit elements such as the light emitting device ED, two or more transistors T1 and T2, and one or more capacitors Cst are provided on the display panel. Since such circuit elements (especially the light emitting device ED) are susceptible to external moisture or oxygen, an encapsulation layer ENCAP for preventing external moisture or oxygen from penetrating into the circuit elements (especially the light emitting device ED) may be provided on the sub-pixel SP.

[0062] The encapsulation layer ENCAP may be formed of one layer or may be formed of a plurality of layers.

[0063] In one embodiment, the touch sensor TS may be disposed on the encapsulation layer ENCAP. For example, the touch sensor TS including a plurality of touch electrodes TE may be formed on the encapsulation layer ENCAP.

[0064] During touch sensing, a touch drive signal or a touch sensing signal may be applied to the touch electrode TE. Therefore, during touch sensing, a potential difference is formed between the touch electrode TE and the cathode with the encapsulation layer ENCAP interposed therebetween, thereby forming an unnecessary parasitic capacitance. Since such parasitic capacitance may reduce touch sensitivity, in order to reduce the parasitic capacitance, the distance between the touch electrode TE and the cathode may be designed to be equal to or greater than a certain value (e.g., 1 μm) in consideration of the panel thickness, the panel manufacturing process, and the display performance. To this end, for example, the thickness of the encapsulation layer ENCAP may be designed to be at least 1 μm or greater. However, the present invention is not limited thereto.

[0065] Figure 2 It is illustrated in Figure 1 FIG. 1 is a diagram showing an example of a touch electrode included in a display device of FIG. 1 ; Figure 3 It is illustrated in Figure 1 FIG. 1 is a diagram of another example of a touch electrode included in a display device of FIG.

[0066] Reference Figure 2 and 3 Each touch electrode TE may be an electrode metal EM which is patterned into a mesh type and has two or more holes HOLE. The electrode metal EM is a portion corresponding to the substantial touch electrode TE and is a portion to which a touch driving signal is applied or a touch sensing signal is sensed.

[0067] exist Figure 2 and 3 , the touch electrode TE is illustrated as having a rhombus shape, but this is exemplary, and the shape (layout) of the touch electrode TE is not limited thereto.

[0068] In an embodiment, if Figure 2As shown, when each touch electrode TE is the electrode metal EM patterned in a mesh type, two or more holes HOLE may exist in the area of ​​the touch electrode TE.

[0069] Each of the two or more holes HOLE present in each touch electrode TE may correspond to a light emitting area of ​​one or more sub-pixels. That is, the plurality of holes HOLE are paths through which light emitted from a plurality of sub-pixels disposed below the plurality of holes HOLE passes upward.

[0070] In other words, the electrode metal EM of the touch electrode TE may be disposed on the pixel defining layer by avoiding the light emitting area.

[0071] Furthermore, as a method of forming the plurality of touch electrodes TE, after the electrode metal EM is widely formed in a mesh type, the electrode metal EM is cut into a predetermined pattern to electrically separate the electrode metal EM, thereby manufacturing the plurality of touch electrodes TE.

[0072] like Figure 2 and 3 As shown, the outline shape of the touch electrode TE may be a square shape such as a diamond shape and a rhombus shape, or various shapes such as a triangle, a pentagon, or a hexagon.

[0073] In one embodiment, if Figure 3 As shown, there may be one or more dummy metals DM cut off from the mesh electrode metal EM in the region of each touch electrode TE.

[0074] The electrode metal EM is a portion corresponding to the body touch electrode TE and is a portion to which a touch drive signal is applied or a touch sensing signal is detected, but the dummy metal DM is a portion to which a touch drive signal is not applied and a touch sensing signal is not detected, although it exists in the area of ​​the touch electrode TE. For example, the dummy metal DM may be an electrically floating metal.

[0075] Therefore, the electrode metal EM may be electrically connected to the touch driving circuit, but the dummy metal DM is not electrically connected to the touch driving circuit.

[0076] For example, in each region of the entire touch electrode TE, one or more dummy metals DM may exist in a state of being cut off from the electrode metal EM.

[0077] In contrast, one or more dummy metals DM may exist in a state of being cut off from the electrode metal EM in the region of each of some touch electrodes TE. For example, the dummy metal DM may not exist in the region of some touch electrodes TE.

[0078] In addition, regarding the role of virtual metal DM, such as Figure 2 As shown, if one or more dummy metals DM do not exist in the area of ​​the touch electrode TE and only the electrode metal EM exists in a mesh type, a visibility problem may occur which shows the outline of the electrode metal EM on the screen.

[0079] In contrast, Figure 3 As shown, when one or more dummy metals DM exist in the region of the touch electrode TE, a visibility problem in which the outline of the electrode metal EM is displayed on the screen can be prevented.

[0080] Furthermore, by adjusting the presence / absence or amount (eg, virtual metal ratio) of the dummy metal DM for each touch electrode TE, the capacitance size of each touch electrode TE may be adjusted to improve touch sensitivity.

[0081] For example, by cutting some points in the electrode metal EM formed in the region of one touch electrode TE, the cut electrode metal EM may be the dummy metal DM. For example, the electrode metal EM and the dummy metal DM may be the same material formed on the same layer.

[0082] The display device according to the embodiment of the present invention may sense a touch based on the capacitance formed on the touch electrode TE.

[0083] The display device according to the embodiment of the present invention uses a capacitance-based touch sensing method, and may sense a touch by using a mutual capacitance-based touch sensing method, or may sense a touch by using a self-capacitance-based touch sensing method.

[0084] In the case of a mutual capacitance-based touch sensing method, the plurality of touch electrodes TE may be classified into: driving touch electrodes (sending touch electrodes) to which a touch driving signal is applied; and sensing touch electrodes (receiving touch electrodes) that detect a touch sensing signal and form a capacitance with the driving touch electrodes.

[0085] In the case of this mutual capacitance-based touch sensing method, a touch sensing circuit (TSC) can sense the presence or absence of a touch and / or the touch coordinates based on the change in capacitance (mutual capacitance) between a driving touch electrode and a sensing touch electrode according to the presence or absence of an indicator such as a finger or a pen.

[0086] In the case of a touch sensing method based on self-capacitance, each touch electrode TE is used as both a driving touch electrode and a sensing touch electrode. That is, the touch sensing circuit applies a touch drive signal to one or more touch electrodes TE, detects a touch sensing signal via the touch electrode TE to which the touch drive signal is applied, and identifies a capacitance change between an indicator such as a finger or a pen and the touch electrode TE based on the detected touch sensing signal to sense the presence or absence of a touch and / or the touch coordinates. In the touch sensing method based on self-capacitance, no distinction is made between a driving touch electrode and a sensing touch electrode.

[0087] As described above, the display device integrated with a touch screen according to the embodiment of the present invention may sense a touch via a mutual capacitance-based touch sensing method, or may sense a touch via a self-capacitance-based touch sensing method. However, hereinafter, for ease of description, a display device integrated with a touch screen that performs mutual capacitance-based touch sensing and has a touch sensor structure for this purpose will be described as an example.

[0088] Figure 4 is used to describe Figure 1 FIG. 1 is a diagram showing an example of a touch sensor included in a display device of FIG. 1 ; Figure 5 It is a graphical implementation Figure 4 FIG. 1 is a diagram of an example of a touch sensor.

[0089] Reference Figure 4 and Figure 5 , a touch sensor structure for touch sensing based on mutual capacitance may include an X touch electrode line X-TEL and a Y touch electrode line Y-TEL. Here, the X touch electrode line X-TEL and the Y touch electrode line Y-TEL are disposed on the encapsulation layer ENCAP. Each of the X touch electrode lines X-TEL may be referred to as a first touch electrode line, and each of the Y touch electrode lines Y-TEL may be referred to as a second touch electrode line.

[0090] The Y touch electrode lines Y-TEL may extend along the first direction DR1, and the X touch electrode lines X-TEL may extend along the second direction DR2.

[0091] In the present invention, the first direction DR1 and the second direction DR2 may be relatively different directions, for example, the first direction may be the x-axis direction and the second direction may be the y-axis direction. Conversely, the first direction may be the y-axis direction and the second direction may be the x-axis direction. In addition, the first direction and the second direction may be orthogonal to each other, or may not be orthogonal to each other. In addition, in the present invention, since the rows and columns are relative, the rows and columns may change according to the viewing angle.

[0092] Each of the X touch electrode lines X-TEL may include a plurality of X touch electrodes X-TE electrically connected to each other. Each of the Y touch electrode lines Y-TEL may include a plurality of Y touch electrodes Y-TE electrically connected to each other. The X touch electrodes may be referred to as first touch electrodes, and the Y touch electrodes may be referred to as second touch electrodes.

[0093] The X touch electrode X-TE and the Y touch electrode Y-TE are electrodes included in the touch electrode TE and whose roles (functions) are divided.

[0094] For example, each of the X touch electrodes X-TE constituting the X touch electrode lines X-TEL may be a driving touch electrode, and each of the Y touch electrodes Y-TE constituting the Y touch electrode lines Y-TEL may be a sensing touch electrode. In this case, each of the plurality of X touch electrode lines X-TEL corresponds to a driving touch electrode line, and each of the plurality of Y touch electrode lines Y-TEL corresponds to a sensing touch electrode line.

[0095] As another example, the X touch electrode X-TE may be a sensing touch electrode, and the Y touch electrode Y-TE may be a driving touch electrode. In this case, each of the plurality of X touch electrode lines X-TEL corresponds to a sensing touch electrode line, and each of the plurality of Y touch electrode lines Y-TEL corresponds to a driving touch electrode line.

[0096] The touch sensor metal for touch sensing may further include a touch wiring TL in addition to the X touch electrode line X-TEL and the Y touch electrode line Y-TEL.

[0097] The touch wiring TL may include an X touch wiring X-TL connected to each X touch electrode line X-TEL and a Y touch wiring Y-TL connected to each Y touch electrode line Y-TEL.

[0098] Each of the X touch electrode lines X-TEL may include an X touch electrode X-TE disposed in the same row (or column) and one or more X touch electrode connection lines X-CL electrically connecting the X touch electrodes X-TE. Here, the X touch electrode connection line X-CL connecting two adjacent X touch electrodes X-TE may be a line connected to the two adjacent X touch electrodes X-TE ( Figure 5 The metal integrated with the touch electrodes X-TE (example), or the metal connected to two adjacent X touch electrodes X-TE via a contact hole.

[0099] Each of the Y touch electrode lines Y-TEL may include a Y touch electrode Y-TE disposed in the same column (or row) and one or more Y touch electrode connection lines Y-CL electrically connecting the Y touch electrodes Y-TE. Here, the Y touch electrode connection line Y-CL connecting two adjacent Y touch electrodes Y-TE may be a metal integrated with the two adjacent Y touch electrodes Y-TE, or a metal connected to the two adjacent Y touch electrodes Y-TE via a contact hole ( Figure 5 ).

[0100] In a region where the X touch electrode line X-TEL and the Y touch electrode line Y-TEL cross each other (a touch electrode line crossing region), the X touch electrode connection line X-CL and the Y touch electrode connection line Y-CL may cross each other.

[0101] In this case, in a region where the X touch electrode line X-TEL and the Y touch electrode line Y-TEL cross each other (touch electrode line crossing region), the X touch electrode connection line X-CL and the Y touch electrode connection line Y-CL may cross each other.

[0102] Thus, when the X touch electrode connection line X-CL and the Y touch electrode connection line Y-CL cross in the touch electrode line crossing region, the X touch electrode connection line X-CL and the Y touch electrode connection line Y-CL should be disposed on different layers.

[0103] Therefore, in order to arrange the X touch electrode line X-TEL and the Y touch electrode line Y-TEL to cross each other, the X touch electrode X-TE, the X touch electrode connection line X-CL, the Y touch electrode Y-TE, the Y touch electrode line Y-TEL, and the Y touch electrode connection line Y-CL may be provided on two or more layers. The X touch electrode connection line may be referred to as a first touch electrode connection line, and the Y touch electrode connection line may be referred to as a second touch electrode connection line.

[0104] Each X touch electrode line X-TEL is electrically connected to the corresponding X touch pad X-TP via one or more X touch wirings X-TL. That is, among the plurality of X touch electrodes X-TE included in one X touch electrode line X-TEL, the X touch electrode X-TE disposed at the outermost portion is electrically connected to the corresponding X touch pad X-TP via the X touch wiring X-TL.

[0105] Each Y touch electrode line Y-TEL is electrically connected to a corresponding Y touch pad Y-TP via one or more Y touch wirings Y-TL. That is, among a plurality of Y touch electrodes Y-TE included in one Y touch electrode line Y-TEL, the Y touch electrode Y-TE disposed at the outermost portion is electrically connected to a corresponding Y touch pad Y-TP via the Y touch wiring Y-TL.

[0106] The X touch electrode line X-TEL and the Y touch electrode line Y-TEL may be disposed on the encapsulation layer ENCAP. That is, the X touch electrode X-TE and the X touch electrode connection line X-CL constituting the X touch electrode line X-TEL may be disposed on the encapsulation layer ENCAP.

[0107] The Y touch electrodes Y-TE and the Y touch electrode connection lines Y-CL constituting the Y touch electrode lines Y-TEL may be disposed on the encapsulation layer ENCAP.

[0108] Each X touch wiring X-TL electrically connected to the X touch electrode line X-TEL may be disposed on the encapsulation layer ENCAP and extend to a region where the encapsulation layer ENCAP does not exist so as to be electrically connected to the X touch pad X-TP. Each Y touch wiring Y-TL electrically connected to the Y touch electrode line Y-TEL may be disposed on the encapsulation layer ENCAP and extend to a region where the encapsulation layer ENCAP does not exist so as to be electrically connected to the Y touch pad Y-TP.

[0109] Here, the encapsulation layer ENCAP may be located inside the active area, and in some cases, may extend to the inactive area.

[0110] Figure 6 It is illustrated in Figure 1 1 is a plan view of an arrangement example of touch electrodes included in a display device of .

[0111] Reference Figure 6 , the mesh type touch electrode TE may be disposed to bypass the light emitting areas EA1, EA2, EA3, and EA4. The touch electrode TE may have a mesh structure that does not overlap with the first to fourth light emitting areas EA1, EA2, EA3, and EA4.

[0112] For ease of description, Figure 6 Regardless of the up-and-down stacking order, the shape in which the light emitting areas EA1, EA2, EA3, and EA4 of the pixels PX1, PX2, PX3, and PX4; the touch electrode TE; the black matrix BM; and the color filters CF1, CF2, CF3, and CF4 are arranged on a plane is conceptually shown.

[0113] In an embodiment, each of the first light emitting area EA1, the second light emitting area EA2, the third light emitting area EA3 and the fourth light emitting area EA4 may be exposed by the first electrode E1 (eg, anode, see Figure 7 ). However, this is exemplary, and the definition of the light-emitting area is not limited thereto. For example, the light-emitting area may also be defined as an area corresponding to each light-emitting layer, an opening area of ​​a pixel defining layer, and the like.

[0114] In an embodiment, the second light emitting area EA2 may be adjacent to the first light emitting area EA1 in the first direction DR1, and the third light emitting area EA3 may be adjacent to the first light emitting area EA1 in the second direction DR2. The second direction DR2 may be a direction crossing the first direction DR1. The fourth light emitting area EA4 may be adjacent to the second light emitting area EA2 in the second direction DR2, and may be adjacent to the third light emitting area EA3 in the first direction DR1.

[0115] The first light-emitting area EA1 may correspond to the first sub-pixel, and the second light-emitting area EA2 may correspond to the second sub-pixel. The third light-emitting area EA3 and the fourth light-emitting area EA4 may correspond to the third sub-pixel. Here, each of the first sub-pixel, the second sub-pixel, and the third sub-pixel may be driven by a separate pixel circuit. The third light-emitting area EA3 and the fourth light-emitting area EA4 may be connected to one sub-pixel circuit and controlled by one sub-pixel circuit.

[0116] In addition, the first sub-pixel, the second sub-pixel, and the third sub-pixel may constitute one pixel PX1, PX2, PX2, PX3, or PX4. Here, each of the pixels PX1, PX2, PX2, PX3, and PX4 may be a set of sub-pixels controlled by the same scan signal. Therefore, a plurality of pixels may be arranged on one pixel row. For example, the first pixel PX1 and the third pixel PX3 may be disposed adjacent to each other on the first pixel row, and the second pixel PX2 and the fourth pixel PX4 may be disposed adjacent to each other on the second pixel row.

[0117] In an embodiment, the first light emitting area EA1, the second light emitting area EA2, the third light emitting area EA3, and the fourth light emitting area EA4 may have a circular shape in a plan view. For example, the first electrode E1 exposed from the pixel defining layer may have a circular shape.

[0118] When the boundary of the light emitting area includes a straight portion, a flare defect may be recognized in which light propagates in a plane in a direction perpendicular to the straight portion. In order to minimize such a flare defect, the light emitting areas EA1 to EA4 may be formed to have a circular shape as much as possible.

[0119] In an embodiment, at least two of the first light-emitting area EA1, the second light-emitting area EA2, the third light-emitting area EA3, and the fourth light-emitting area EA4 may have different areas. The area of ​​the light-emitting area may be determined by reflecting the life characteristics of the light-emitting device. For example, the effective area of ​​the light-emitting area of ​​a light-emitting device with a relatively short life may be greater than the area of ​​the light-emitting area of ​​a light-emitting device with a relatively long life. Therefore, the color characteristics of the display device based on the use time can be kept uniform for a long time.

[0120] In an embodiment, the first light emitting area EA1 may emit light of a first color, the second light emitting area EA2 may emit light of a second color, and the third light emitting area EA2 and the fourth light emitting area EA4 may emit light of a third color. For example, the first light emitting area EA1 may emit green light, the second light emitting area EA2 may emit red light, and the third light emitting area EA3 and the fourth light emitting area EA4 may emit blue light.

[0121] The lifespan of the red light emitting device may be longer than those of the green light emitting device and the blue light emitting device, and the lifespan of the green light emitting device may be longer than that of the blue light emitting device.

[0122] In an embodiment, the area of ​​the first light-emitting area EA1 having a relatively short life span may be larger than the area of ​​the second light-emitting area EA2 having the longest life span. The light-emitting area emitting blue light should remain circular and have a total area larger than the first light-emitting area. Therefore, in an embodiment, the blue light-emitting area can be realized by two circular light-emitting areas, i.e., the third light-emitting area EA3 and the fourth light-emitting area EA4.

[0123] In other words, the total area of ​​the light emitting areas EA3 and EA4 emitting the third color (eg, blue) light in the first pixel PX1 may be greater than that of the first light emitting area EA1 and greater than that of the second light emitting area EA2 .

[0124] According to an embodiment, the area of ​​the third light emitting area EA3 may be substantially the same as the area of ​​the fourth light emitting area EA4. Here, the third light emitting area EA3 and the fourth light emitting area EA4 may emit light of the same color.

[0125] The distance between the light-emitting areas may be determined based on the area limitation of the light-emitting areas and the limitation of the space in which the light-emitting areas can be set. In an embodiment, the distance D1 between the first light-emitting area EA1 and the second light-emitting area EA2 (hereinafter, referred to as the first distance D1) may be shorter than the distance D2 between the first light-emitting area EA1 and the third light-emitting area EA3 (hereinafter, referred to as the second distance D2).

[0126] In addition, the distance D1 between the first light emitting area EA1 and the second light emitting area EA2 may be shorter than the distance D3 between the third light emitting area EA3 and the fourth light emitting area EA4 of pixels adjacent to each other (hereinafter, referred to as the third distance D3). For example, the third distance D3 may be the distance between the fourth light emitting area EA4 of the first pixel PX1 and the third light emitting area EA3 of the second pixel PX2 adjacent to the first pixel PX1 in the first direction DR1.

[0127] According to an embodiment, a distance D4 (hereinafter, referred to as a fourth distance D4) between the fourth light emitting area EA4 of the third pixel PX3 and the third light emitting area EA3 of the fourth pixel PX4 may be different from the third distance D3. For example, an arrangement of light emitting areas in which the fourth distance D4 is shorter than the third distance D3 may be designed. In this case, the distances between the third light emitting area EA3 and the fourth light emitting area EA4 in the pixels PX1, PX2, PX2, PX3, and PX4 may be substantially the same.

[0128] A touch electrode TE including an electrode metal may be disposed on the light emitting device, and a black matrix BM having an opening may be disposed on the touch electrode TE. The black matrix BM may cover the entire touch electrode TE. The black matrix BM may prevent color mixing between adjacent sub-pixels and / or light emitting areas. The area where the black matrix BM is disposed may be a non-light emitting area.

[0129] The black matrix BM may include an opening portion overlapping each of the first to fourth light-emitting areas EA1, EA2, EA3, and EA4. The area of ​​each opening portion may be larger than the area of ​​each of the first to fourth light-emitting areas EA1, EA2, EA3, and EA4 corresponding thereto. That is, the black matrix BM may be formed to be separated from the first to fourth light-emitting areas EA1, EA2, EA3, and EA4 by a predetermined interval. Therefore, the range in which the light output from the first to fourth light-emitting areas EA1, EA2, EA3, and EA4 is shielded by the black matrix BM may be reduced, and the viewing angle may be improved.

[0130] Color filters CF1, CF2, CF3, and CF4 may be filled in the opening of the black matrix BM. The first color filter CF1 may overlap with the first light-emitting area EA1 and cover the entire first light-emitting area EA1. The second color filter CF2 may overlap with the second light-emitting area EA2 and cover the entire second light-emitting area EA2. The third color filter CF3 may overlap with the third light-emitting area EA3 and cover the entire third light-emitting area EA3. The fourth color filter CF4 may overlap with the fourth light-emitting area EA4 and cover the entire fourth light-emitting area EA4.

[0131] For example, it is understandable that Figure 6 The pattern indicating the first to fourth light emitting areas EA1, EA2, EA3 and EA4 overlaps with the first to fourth color filters CF1, CF2, CF3 and CF4, as shown in FIG. Figure 6 and Figure 7 shown.

[0132] In an embodiment, each of the first to fourth color filters CF1, CF2, CF3 and CF4 may have a larger area than each of the first to fourth emission areas EA1, EA2, EA3 and EA4. Due to the above arrangement structure of the color filters CF1, CF2, CF3 and CF4 and the black matrix BM, the viewing angle may be increased.

[0133] According to an embodiment, some of the first to fourth color filters CF1, CF2, CF3, and CF4 may overlap the black matrix BM. Each of the first to fourth color filters CF1, CF2, CF3, and CF4 may have a circular shape in a plan view.

[0134] The first color filter CF1 may correspond to a first color, the second color filter CF2 may correspond to a second color, and the third and fourth color filters CF3 and CF4 may correspond to a third color.

[0135] In this manner, the plane shape, area, and position of the light emitting region may be determined in consideration of glare defects, life of the light emitting device, and viewing angle, and accordingly, the black matrix BM of various widths may be formed between the light emitting regions.

[0136] The mesh type touch electrode TE may be disposed to overlap the black matrix BM so as not to affect image visibility.

[0137] The touch electrode TE may be designed to have various widths based on the arrangement position. The touch electrode TE may include: a first portion P1 extending along the second direction DR2 between the first light emitting area EA1 and the second light emitting area EA2; and a second portion P2 extending along the first direction DR1 between the first light emitting area EA1 and the third light emitting area EA3. The second portion P2 may also extend between the second light emitting area EA2 and the fourth light emitting area EA4.

[0138] An average width of the first portion P1 may be different from an average width of the second portion P2. The width of the first portion P1 may be defined in the first direction DR1, and the width of the second portion P2 may be defined in the second direction DR2.

[0139] Since the first distance D1 is shorter than the second distance D2, the minimum width of the black matrix BM between the first and second emission areas EA1 and EA2 is smaller than the minimum width of the black matrix BM between the first and third emission areas EA1 and EA3. For example, the minimum width of the black matrix BM between the first and second emission areas EA1 and EA2 may be about 9 μm.

[0140] In addition, in order to prevent the touch electrode TE from affecting visibility, the black matrix BM covering the touch electrode TE should have a margin relative to the touch electrode TE (e.g., the line width of the touch electrode TE). For example, the black matrix BM should overlap the touch electrode TE with a margin of about 3 μm or more in both directions relative to the touch electrode TE (e.g., the line width of the touch electrode TE).

[0141] In the embodiment of the present invention, since the minimum width of the black matrix BM is reduced to about 9 μm between the first and second emission areas EA1 and EA2 , the width of the first portion P1 of the touch electrode TE may be designed to be about 3 μm for visibility.

[0142] However, when the line width of the touch electrode TE becomes thinner (or decreases), the resistance and RC delay of the touch electrode may increase, and the touch sensing performance may deteriorate. Therefore, in order to improve the viewing angle by reducing the width of the black matrix BM and minimize the degradation of the touch sensing performance, the line width of the touch electrode TE may have different sizes according to the position.

[0143] In an embodiment, the first portion P1 may have a substantially uniform first width W1, and the second portion P2 may have a substantially uniform second width W2. The second width W2 may be greater than the first width W1. For example, the second width W2 may be about 5 μm, and the first width W1 may be about 3 μm. Therefore, a minimum margin between the black matrix BM and the first portion P1 of the touch electrode TE may be ensured.

[0144] The touch electrode TE may further include a third portion P3 extending from the intersection of the first portion P1 and the second portion P2 along the second direction DR2 and adjacent to the fourth emission area EA4. The third portion P3 may be disposed between the fourth emission area EA4 of the first pixel PX1 and the third emission area EA3 of the second pixel PX2.

[0145] In an embodiment, the width of the third portion P3 (hereinafter, referred to as the third width W3 ) (eg, the width in the first direction DR1 ) may be greater than the first width W1 . For example, the width of the third portion P3 may be substantially the same as the second width W2 .

[0146] like Figure 6 As shown, the first portion P1 and the third portion P3 of the touch electrode TE are continuous in the second direction DR2 and may be repeated alternately. Therefore, the line width of the touch electrode TE extending in the second direction DR3 may be changed between the first width W1 and the third width W3.

[0147] According to the implementation mode, Figure 6 As shown, the touch electrode TE cannot be disposed between the third light emitting area EA3 and the fourth light emitting area EA4 in one pixel.

[0148] As described above, the display device according to the embodiment of the present invention has a structure in which the color filters CF1, CF2, CF3 and CF4 are disposed on the encapsulation layer and the touch electrode TE may include circular light-emitting areas EA1 to EA4 to minimize the glare defect, and may include a structure (e.g., a pull-back structure) for minimizing the area in which the black matrix BM is disposed between the light-emitting areas to maximize the viewing angle. In addition, by forming the line width of the touch electrode TE of some areas to be thinner than the line width of the touch electrode TE of other areas in response to various widths of the black matrix BM, the touch sensing performance and the viewing angle can be fully ensured at the same time.

[0149] Figure 7 The diagram includes Figure 6 A cross-sectional view of an example of a display device with a touch electrode.

[0150] Reference Figure 1 , 6 7 , the display device 10 may include a substrate SUB, a pixel circuit layer PXCL, a light emitting device layer EDL, an encapsulation layer ENCAP, a touch sensor layer TSL, and a color filter layer CFL.

[0151] The substrate SUB is a supporting member for supporting other components of the display device 10, and may be formed of an insulating material. For example, the substrate SUB may be formed of glass or resin. In addition, the substrate SUB may be formed of plastic such as a polymer or polyimide (PI), or may be formed of a material having flexibility.

[0152] The buffer layer BUF may be disposed on the substrate SUB and may be formed as a single layer or multiple layers of at least one of an inorganic material and an organic material to prevent the light emitting device ED from being damaged by impurities such as alkali ions flowing out of the substrate SUB in a subsequent process.

[0153] For example, the inorganic material may include any one of silicon oxide (SiOx), silicon nitride (SiNx) and silicon oxynitride (SiON). The organic material may include any one of polyimide, benzocyclobutene series resin and polyacrylate, and an example of polyacrylate may include photoacryl.

[0154] The pixel circuit layer PXCL including the transistor TFT may be disposed on the active area of ​​the substrate SUB. For example, the transistor TFT includes a first node electrode NE1 corresponding to a gate, a second node electrode NE2 corresponding to a source or drain, a third node electrode NE3 corresponding to a drain or source, and a semiconductor layer SEM.

[0155] The first node electrode NE1 and the semiconductor layer SEM may overlap each other with the gate insulating layer GI interposed therebetween. The second node electrode NE2 may be formed on the insulating layer ILD to contact one side of the semiconductor layer SEM, and the third node electrode NE3 may be formed on the insulating layer ILD to contact the other side of the semiconductor layer SEM. The insulating layer ILD may be made of a single layer formed of an inorganic material or a multilayer formed of different inorganic materials. For example, the insulating layer ILD may be made of a single layer or a multilayer formed of any one of silicon oxide (SiOx), silicon nitride (SiNx), and silicon oxynitride (SiON).

[0156] The planarization layer PLN may be disposed on the insulating layer ILD. The planarization layer PLN is used to protect the lower structure while alleviating the step difference of the lower structure, and may be formed of an organic material. For example, the organic material may include any one of polyimide, benzocyclobutene-based resin, and polyacrylate. Examples of polyacrylate may include optical acryl.

[0157] Figure 7 A bottom gate structure in which a gate electrode is disposed below a source electrode / drain electrode is shown, but the present invention is not limited thereto. For example, the transistor TFT may have a top gate structure in which a gate electrode is disposed on a source electrode / drain electrode.

[0158] The light emitting device layer EDL may be disposed on the pixel circuit layer PXCL. The light emitting device layer EDL may include a light emitting device ED and a bank PDL (also referred to as a pixel defining layer).

[0159] The light emitting device ED may include a first electrode E1, a light emitting layer EL, and a second electrode E2.

[0160] The first electrode E1 may be an anode and electrically connected to the third node electrode NE3 of the first transistor TFT via a pixel contact hole penetrating the planarization layer PLN.

[0161] The bank PDL exposing the first electrode E1 may be formed on the planarization layer PLN. The bank PDL has an opening portion, and the first electrode E1 may be exposed through the opening portion. The opening portion of the bank PDL may be a region defining the emission areas EA, EA2, and EA3. For example, the first electrode E1 exposed by the bank PDL may have a Figure 6 The circle shown.

[0162] In one embodiment, the bank PDL is a black bank (or black pixel defining layer) having a black color, and optical interference and color mixing between adjacent light-emitting areas can be prevented. The bank PDL can be formed by mixing a black material with a base resin. The base resin can be at least one selected from epoxy resins, acrylate-based resins, siloxane-based resins, and polyimides, but is not limited thereto. In addition, the black material can be formed by any one of a black-based pigment and a black-based dye.

[0163] The light emitting layer EL is formed on the first electrode E1 of the light emitting area defined by the bank PDL. The light emitting layer EL is formed by stacking a hole related layer, a light emitting layer EL, and an electron related layer on the first electrode E1 in this order or in reverse order.

[0164] The light emitting layer EL of the first subpixel SP1 may emit light of a first color, the light emitting layer EL of the second subpixel SP2 may emit light of a second color, and the light emitting layer EL of the third subpixel SP3 may emit light of a third color.

[0165] The second electrode E2 may be disposed to face the first electrode E1 with the light emitting layer EL interposed therebetween. For example, the second electrode E2 may be commonly disposed on the first to third sub-pixels SP1, SP2, and SP3, but the present invention is not limited thereto.

[0166] The encapsulation layer ENCAP may be disposed on the light emitting device layer EDL.

[0167] The encapsulation layer ENCAP blocks external moisture or oxygen from penetrating into the light emitting device ED susceptible to external moisture or oxygen. The encapsulation layer ENCAP may be formed of one layer or may be formed of a plurality of layers.

[0168] For example, the encapsulation layer ENCAP may have a structure in which a first inorganic encapsulation layer PAS1, an organic encapsulation layer PCL, and a second inorganic encapsulation layer PAS2 are sequentially stacked. The encapsulation layer ENCAP may further include one or more organic encapsulation layers and / or at least one inorganic encapsulation layer.

[0169] The first inorganic encapsulation layer PAS1 and the second inorganic encapsulation layer PAS2 may be made of an inorganic insulating material capable of low temperature deposition, such as silicon oxide (SiOx), silicon nitride (SiNx), silicon oxynitride (SiON), or aluminum oxide (Al 2 O 3 )form.

[0170] The organic encapsulation layer PCL may be formed of an organic insulating material such as acrylic resin, epoxy resin, polyimide, polyethylene, or silicon oxycarbide (SiOC).

[0171] The touch sensor layer TSL may be disposed on the encapsulation layer ENCAP. In an embodiment, the touch sensor layer TSL may include a touch buffer layer T-BUF, a connection electrode CL, a touch insulation layer TILD, a touch electrode TE, and a protection layer C-BUF.

[0172] The touch buffer layer T-BUF is formed to prevent damage to the encapsulation layer ENCAP and the light emitting device ED in the process of forming the touch sensor layer TSL. The touch buffer layer T-BUF may be formed of an inorganic material such as silicon nitride (SiNx), silicon oxide (SiOx), aluminum oxide (AlOx), etc., but is not limited thereto.

[0173] The connection electrode CL may be disposed on the touch buffer layer T-BUF. The connection electrode CL may serve as a bridge connecting some of the touch electrodes TE. The connection electrode CL may be formed to overlap a portion of the upper touch electrode TE.

[0174] The touch insulating layer TILD is disposed on the touch buffer layer T-BUF and may cover the connection electrode. The touch insulating layer TILD may be an organic insulating layer. However, the present invention is not limited thereto. The touch insulating layer TILD may be an inorganic insulating layer or have a structure in which an organic insulating layer is stacked on an inorganic insulating layer.

[0175] The touch electrode TE may be disposed on the touch insulation layer TILD. The touch electrode TE may include an opaque conductive material. The touch electrode TE may be formed to overlap the bank PDL by bypassing the light emitting areas EA1, EA2, and EA3. The width of the touch electrode TE may be determined according to the width of the black matrix BM on the upper portion thereof.

[0176] A protection layer C-BUF may be disposed on the touch electrode TE. The protection layer C-BUF may be formed to prevent damage to the touch sensor layer TSL in a process of forming a color filter and a black matrix BM.

[0177] The protective layer C-BUF may be an inorganic insulating layer. For example, the protective layer C-BUF may include an inorganic material such as silicon nitride (SiNx), silicon oxide (SiOx), aluminum oxide (AlOx), etc.

[0178] The color filter layer CFL may be disposed on the protection layer C-BUF. The color filter layer CFL may include a first color filter CF1, a second color filter CF2, a third color filter CF3, and a black matrix BM.

[0179] The black matrix BM may be formed by mixing a black material with a base resin. The base resin may be at least one selected from epoxy-based resins, acrylate-based resins, siloxane-based resins, and polyimide, but is not limited thereto. In addition, the black material may be formed from a black-based pigment or a black-based dye.

[0180] The black matrix BM may overlap the touch electrode TE. When viewed in a plan view, the black matrix BM may be arranged to be separated from the light-emitting area EA. For example, the first opening OP1 of the black matrix BM may overlap the first light-emitting area EA1 and may be formed wider than the first light-emitting area EA1. Similarly, the second opening OP2 of the black matrix BM may overlap the second light-emitting area EA2 and may be formed wider than the second light-emitting area EA2. The third opening OP3 of the black matrix BM may overlap the third light-emitting area EA3 and may be formed wider than the third light-emitting area EA3.

[0181] The first distance D1 between the first light emitting area EA1 and the second light emitting area EA2 may be shorter than the second distance D2 between the first light emitting area EA1 and the third light emitting area EA3. Therefore, the width of the black matrix BM between the first light emitting area EA1 and the second light emitting area EA2 may be smaller than the width of the black matrix between the first light emitting area EA1 and the third light emitting area EA3, and the first width W1 of the first portion P1 of the touch electrode TE may be smaller than the second width W2 of the second portion P2.

[0182] Thus, the line width of the touch electrode TE may be determined based on the width of the black matrix BM in the non-light emitting area.

[0183] A color filter may be filled in each of the openings OP1 , OP2 , and OP3 of the black matrix BM.

[0184] The first color filter CF1 may fill the first opening portion OP1. The first color filter CF1 may cover a portion of the black matrix BM. The first color filter CF1 may correspond to a first color.

[0185] The second color filter CF2 may fill the second opening portion OP2. The second color filter CF2 may cover a portion of the black matrix BM. The second color filter CF2 may correspond to a second color.

[0186] The third color filter CF3 may fill the third opening portion OP3. The third color filter CF3 may cover a portion of the black matrix BM. The third color filter CF3 may correspond to a third color.

[0187] The color filters CF1, CF2, and CF3 and the black matrix BM may be directly formed on the protective layer C-BUF. The protective layer C-BUF may be in direct contact with the touch electrode TE, the black matrix BM, and the color filters CF1, CF2, and CF3. The area of ​​the first color filter CF1 corresponding to the first light-emitting area EA1, the area of ​​the second color filter CF2 corresponding to the second light-emitting area EA2, and the area of ​​the third color filter CF3 corresponding to the third light-emitting area CF3 may be different from each other.

[0188] An overcoat layer OC may be disposed on the color filter layer CFL, and a cover glass CG may be disposed on the overcoat layer OC.

[0189] Figure 8 It is illustrated in Figure 1 1 is a plan view of another example of an arrangement of touch electrodes included in a display device of FIG. 1 .

[0190] In reference Figure 8 In the following description, reference will be omitted. Figure 6 and 7 The details described are the same or similar details.

[0191] Reference Figure 8 , the mesh type touch electrode TE may be disposed to overlap the black matrix BM in the upper portion.

[0192] In an embodiment, a width W3 of a third portion P3 of the touch electrode TE between the fourth light emitting area EA4 of the first pixel PX1 and the third light emitting area EA3 of the second pixel PX2 may be different from a width W4 of a fourth portion P4 of the touch electrode TE between the fourth light emitting area EA4 of the third pixel PX3 and the third light emitting area EA3 of the fourth pixel PX4.

[0193] As described above, the distance D3 between the fourth light-emitting area EA4 of the first pixel PX1 and the third light-emitting area EA3 of the second pixel PX2 may be different from the distance D4 between the fourth light-emitting area EA4 of the third pixel PX3 and the third light-emitting area EA3 of the fourth pixel PX4. For example, the third distance D3 is greater than the fourth distance D4. Therefore, the width of the black matrix BM between the fourth light-emitting area EA4 of the first pixel PX1 and the third light-emitting area EA3 of the second pixel PX2 may be greater than the width of the black matrix BM between the fourth light-emitting area EA4 of the third pixel PX3 and the third light-emitting area EA3 of the fourth pixel PX4.

[0194] The width W3 of the third portion P3 of the touch electrode TE may be greater than the width W4 of the fourth portion P4. In addition, the width W3 of the third portion P3 of the touch electrode TE may be greater than the width W2 of the second portion P2.

[0195] Therefore, due to the thickness of the third portion P3, RC delay or the like of the touch electrode TE formed to have a relatively thin width in the first portion P1 may be compensated. Therefore, while ensuring a viewing angle, touch sensing performance may be additionally improved.

[0196] Fig. 9 It is illustrated in Figure 1 FIG. 1 is a plan view of still another example of arrangement of touch electrodes included in a display device of FIG.

[0197] In reference Fig. 9In the following description, reference will be omitted. Figure 6 and 7 The details described are the same or similar details.

[0198] Reference Fig. 9 , the mesh touch electrode TE may be arranged to overlap the black matrix BM in the upper portion. For example, the black matrix BM may be arranged to overlap the black matrix BM in the upper portion. Fig. 9 overlaps with the touch electrode TE in all areas of the touch electrode TE.

[0199] In an embodiment, the touch electrode TE may be arranged along the planar shape of the black matrix BM. For example, the black matrix BM may be formed to have a uniform margin relative to the touch electrode TE. Therefore, in a plan view, the portion of the black matrix BM that does not overlap with the touch electrode TE may have a circular ring shape. In this case, the circular ring shape may have a uniform width. For example, the circular ring shape may have a width of 3 μm or more. The rest of the black matrix BM may overlap with the touch electrode TE. That is, in Fig. 9 In the embodiment, the black matrix BM may be disposed on an upper portion of a region in which the touch electrode TE is disposed.

[0200] The width of the first portion P1 of the touch electrode TE in the first direction DR1 may vary. Similarly, the width of the second portion P2 of the touch electrode TE in the second direction DR2 and the width of the third portion P3 in the first direction DR1 may vary.

[0201] For example, the minimum width W1' of the first portion P1 of the touch electrode TE may be different from the minimum width W2' of the second portion P2 of the touch electrode TE. In addition, the minimum widths W3' and W4' of the third portion P3 and the fourth portion P4 of the touch electrode TE3 may be different from the minimum widths W1' and W2' of the first portion P1 and the second portion P2.

[0202] In the display device according to the embodiment of the present invention, the electrode area of ​​the touch sensor TE is ensured as much as possible, so that the touch sensing performance can be additionally improved.

[0203] The display device according to the embodiment of the present invention has a structure in which a color filter is disposed on an encapsulation layer and a touch electrode may include a circular light-emitting area to minimize a flare defect, and may include a structure (e.g., a pull-back structure) for minimizing an area in which a black matrix is ​​disposed between light-emitting areas to maximize a viewing angle. In addition, by forming the line width of the touch electrode in a part of the area to be thinner than the line width of the touch electrode in other areas in response to various widths of the black matrix, touch sensing performance and viewing angle can be fully ensured at the same time.

[0204] However, the effects of the present invention are not limited to the above-mentioned effects, and the effects of the present invention can be variously extended without departing from the spirit and scope of the present invention.

[0205] The above-mentioned features, structures and effects of the present invention are included in at least one embodiment of the present invention, but are not limited to only one embodiment. In addition, the features, structures and effects described in at least one embodiment of the present invention can be realized by a person of ordinary skill in the art through combination or modification with other embodiments. Therefore, the contents related to combination and modification should be interpreted as falling within the scope of the present invention.

[0206] It will be apparent to those skilled in the art that various modifications and variations may be made in the present invention without departing from the spirit or scope of the present invention. Therefore, the present invention is intended to cover modifications and variations of the present invention that fall within the scope of the present invention.

Claims

1. A display device, comprising: a light emitting device layer, the light emitting device layer comprising a first light emitting area, a second light emitting area adjacent to the first light emitting area in a first direction, a third light emitting area adjacent to the first light emitting area in a second direction, and a fourth light emitting area adjacent to the third light emitting area in the first direction; An encapsulation layer covering the light-emitting device layer; a touch electrode, the touch electrode being disposed on the encapsulation layer and having a mesh structure that does not overlap with the first light-emitting area, the second light-emitting area, the third light-emitting area, and the fourth light-emitting area; a black matrix, the black matrix including a plurality of openings overlapping the first light-emitting area, the second light-emitting area, the third light-emitting area, and the fourth light-emitting area, being disposed on the touch electrode and covering the entire touch electrode; as well as a plurality of color filters filled in each of the plurality of openings and having a larger area than each of the first light emitting area, the second light emitting area, the third light emitting area, and the fourth light emitting area, The average width of the first portion of the touch electrode extending along the second direction between the first light-emitting area and the second light-emitting area is different from the average width of the second portion of the touch electrode extending along the first direction between the first light-emitting area and the third light-emitting area. 2 . The display device according to claim 1 , wherein the first light emitting area emits light of a first color, the second light emitting area emits light of a second color, and the third light emitting area and the fourth light emitting area emit light of a third color. 3 . The display device of claim 2 , wherein each of the first light emitting area, the second light emitting area, the third light emitting area, and the fourth light emitting area has a circular shape in a plan view.

4. The display device according to claim 2, wherein a distance between the first light emitting area and the second light emitting area is shorter than a distance between the first light emitting area and the third light emitting area, The first portion has a first width, The second portion has a second width greater than the first width.

5. The display device according to claim 4, wherein the touch electrode further comprises a third portion, the third portion extending from an intersection of the first portion and the second portion along the second direction and adjacent to the fourth light emitting area, The width of the third portion is greater than the second width.

6. The display device according to claim 4, wherein the first light emitting area, the second light emitting area, the third light emitting area and the fourth light emitting area constitute a pixel, A distance between a fourth light emitting area of ​​a first pixel and a third light emitting area of ​​a second pixel adjacent to the first pixel in the first direction is greater than a distance between the first light emitting area and the third light emitting area in the second direction.

7. The display device according to claim 3, wherein a portion of the black matrix that does not overlap the touch electrode has a circular ring shape in a plan view, The circular ring has a uniform width. 8 . The display device according to claim 7 , wherein a width of the first portion of the touch electrode in the first direction and a width of the second portion of the touch electrode in the second direction are variable. 9 . The display device of claim 8 , wherein a minimum width of the first portion of the touch electrode is different from a minimum width of the second portion of the touch electrode.

10. The display device according to claim 8, wherein the touch electrode further comprises a third portion, the third portion being disposed between the third light emitting area and the fourth light emitting area and having a variable width in the first direction, The minimum width of the third portion is different from the minimum width of the first portion and the minimum width of the second portion.

11. The display device according to claim 3, wherein the light emitting device layer comprises: a plurality of first electrodes corresponding to the first light emitting area, the second light emitting area, the third light emitting area, and the fourth light emitting area, each of the first electrodes having a circular shape in a plan view; a bank covering a portion of the first electrodes and disposed between the first electrodes; a light-emitting layer disposed on the first electrode; as well as A second electrode disposed on the light-emitting layer, The bank is black. 12 . The display device according to claim 11 , wherein each of the plurality of color filters has a circular shape in a plan view. 13 . The display device according to claim 1 , further comprising a protection layer disposed between the touch electrode and the black matrix.

14. The display device according to claim 13, wherein the protective layer is in direct contact with the touch electrode, the black matrix and the color filter, The protective layer includes an inorganic insulating material. 15 . The display device of claim 13 , wherein each of the plurality of color filters covers a portion of the black matrix.

16. The display device of claim 3, wherein an area of ​​a first color filter corresponding to the first light emitting area, an area of ​​a second color filter corresponding to the second light emitting area, and an area of ​​a third color filter corresponding to the third light emitting area are different from each other. 17 . The display device according to claim 3 , wherein an area of ​​each opening of the black matrix is ​​larger than an area of ​​each of the first light-emitting region, the second light-emitting region, the third light-emitting region, and the fourth light-emitting region corresponding to the opening. 18 . The display device according to claim 1 , wherein a minimum width of the black matrix between the first light emitting area and the second light emitting area is smaller than a minimum width of the black matrix between the first light emitting area and the third light emitting area.

19. The display device according to claim 4, wherein the touch electrode further comprises a third portion, the third portion extending from an intersection of the first portion and the second portion along the second direction and adjacent to the fourth light emitting area, The width of the third portion is greater than the first width and substantially the same as the second width. 20 . The display device according to claim 5 , wherein the first portion and the third portion of the touch electrode are continuous in the second direction and are repeated alternately.

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