Display devices

Abstract

The present application relates to a display device. The display device includes a substrate, a pixel array, a plurality of scan lines, and a plurality of data lines. The substrate includes a first surface and a second surface opposite to the first surface, and defines a through-hole portion therethrough. The pixel array includes a plurality of pixels surrounding the through-hole portion on the first surface. The plurality of scan lines extend along a first direction for providing scan signals to the pixels. The plurality of data lines extend along a second direction intersecting the first direction for providing data signals to the pixels. The plurality of data lines include a first data line and a second data line adjacent to the through-hole portion at different layers, and at least a portion of the data lines bends along the perimeter of the through-hole portion.

Description

[0001] This application is a divisional application of the invention patent application "Display Device" with application number 201611100315.9 and application date on December 2, 2016. Technical Field

[0002] One or more embodiments relate to a display device. Background Art

[0003] Recently, the use of display devices has been diversified. In addition, as display devices become thinner and lighter, the use range of display devices has gradually expanded. In particular, recently, research has been conducted to manufacture display devices as flat panel display devices.

[0004] The form of the display device may be designed using various methods. In addition, the functions that may be combined with or connected to the display device may increase. Summary of the Invention

[0005] One or more embodiments include a display device having a through-hole portion.

[0006] Additional aspects will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the presented embodiments.

[0007] According to one or more embodiments, a display device includes a substrate, the substrate including a first surface and a second surface opposite to the first surface and defining a through-hole portion passing therethrough; a pixel array including a plurality of pixels surrounding the through-hole portion on the first surface; a plurality of scan lines extending along a first direction for providing scan signals to the pixels; and a plurality of data lines extending along a second direction intersecting the first direction for providing data signals to the pixels, the plurality of data lines including a first data line and a second data line adjacent to the through-hole portion at different layers, and at least a portion of which is bent along a perimeter of the through-hole portion.

[0008] The first data line may not overlap with the second data line.

[0009] The substrate may include a display area corresponding to the pixels, and a non-display area adjacent to the display area.

[0010] The non-display area may include a first non-display area surrounded by the display area and surrounding the through hole portion, and a second non-display area surrounding the display area.

[0011] One of the first data line and the second data line may be connected to a connection data line including the same material as the other of the first data line and the second data line.

[0012] At least one of the first and second data lines may include a first straight portion extending along the second direction, a bent portion connected to the first straight portion, and a second straight portion connected to the bent portion and extending along the second direction.

[0013] The curved portion may be integrated with the first straight portion and the second straight portion at the same layer.

[0014] The device may further include an insulating layer between the curved portion and the first straight portion or the second straight portion, the curved portion may be in a different layer from the first straight portion or the second straight portion, the curved portion and the first straight portion may contact each other via a first contact body passing through the insulating layer, and the curved portion and the second straight portion may contact each other via a second contact body passing through the insulating layer.

[0015] The device may further include a thin film encapsulation layer including an inorganic layer and an organic layer over the substrate.

[0016] The thin film encapsulation layer may include a side surface defining the through hole portion.

[0017] The thin film encapsulation layer may include a first inorganic layer, an organic layer over the first inorganic layer, and a second inorganic layer over the organic layer.

[0018] The apparatus may further include a dam adjacent to the through-hole portion at the first surface of the substrate.

[0019] The dam may be located between an end portion of the organic layer and the through-hole portion.

[0020] The first inorganic layer and the second inorganic layer may contact each other at the contact portion and may extend further toward the through-hole portion than the organic layer.

[0021] The device may further include an inorganic insulating layer below the first and second data lines and directly contacting the first inorganic layer adjacent to the via portion.

[0022] The device may further include an inorganic passivation layer over the first and second data lines and directly contacting the first inorganic layer adjacent to the via portion.

[0023] At least one of the first data line and the second data line may overlap with the contact portion.

[0024] The device may further include a passivation layer including the organic-inorganic composite particles over the first and second data lines, and the passivation layer directly contacts the first inorganic layer adjacent to the through-hole portion.

[0025] At least one of the first data line and the second data line may overlap with the contact portion.

[0026] The plurality of pixels may include first and second pixels arranged along the second direction, spaced apart from each other by a through-hole portion interposed therebetween, and electrically connected to one of the first and second data lines.

[0027] The multiple data lines may further include a third data line, the third data line includes the same material as one of the first data line and the second data line and is separated from the through-hole portion along the first direction, and the multiple pixels may further include a third pixel electrically connected to the third data line, and the third pixel includes a pixel electrode, an emission layer above the pixel electrode, and a relative electrode above the emission layer.

[0028] At least one of the first data line and the second data line may overlap with the pixel electrode of the third pixel.

[0029] Each of the pixels may include a pixel circuit including a transistor and a storage capacitor and an organic light emitting diode electrically connected to the pixel circuit.

[0030] According to the above, the embodiment provides a display device that reduces the area of ​​a first non-display region around a through-hole portion surrounded by a pixel and improves sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] These and / or other aspects will become apparent and more readily understood from the following description of exemplary embodiments taken in conjunction with the accompanying drawings, in which:

[0032] Figure 1 is a block diagram showing a display device according to an embodiment;

[0033] Figure 2 is a plan view showing a display device according to an embodiment;

[0034] Figure 3A It is magnified Figure 2 Plan view of part IIIa;

[0035] Figure 3B It is a depiction Figure 3A a floor plan of a portion of a

[0036] Figure 3C is based on Figure 3A A plan view of an improved embodiment of the invention;

[0037] Figure 4 It is along Figure 3A A cross-sectional view taken along line IV-IV in FIG.

[0038] Figure 5 It is magnified Figure 2 a plan view of part V;

[0039] Figure 6is a cross-sectional view showing a portion of a display device according to another embodiment;

[0040] Figure 7 It shows Figure 6 an enlarged view of part VII;

[0041] Figure 8 is a cross-sectional view showing a portion of a display device according to another embodiment;

[0042] Figure 9 is a cross-sectional view showing a portion of a display device according to another embodiment;

[0043] Figure 10 is a cross-sectional view showing a portion of a display device according to another embodiment;

[0044] Figure 11 is a plan view showing a portion of a display device according to another embodiment;

[0045] Figure 12 It is along Figure 11 A cross-sectional view taken along line XX in FIG.

[0046] Figure 13A is a cross-sectional view showing a portion of a display device according to another embodiment;

[0047] Figure 13B is a cross-sectional view showing a portion of a display device according to another embodiment;

[0048] Figure 14A is a cross-sectional view showing a portion of a display device according to another embodiment;

[0049] Figure 14B is a cross-sectional view showing a portion of a display device according to another embodiment;

[0050] Figure 15A is a plan view depicting a portion of a display device according to another embodiment;

[0051] Figure 15B It is a depiction Figure 15A a floor plan of a portion of a

[0052] Figure 16 It is along Figure 15A a cross-sectional view taken along line XIV-XIV of ; and

[0053] 17A to 17C is a view showing an electronic device having a display apparatus according to an embodiment. DETAILED DESCRIPTION

[0054] The features of the inventive concept and its implementation methods can be more easily understood by referring to the detailed description of the following embodiments and drawings. Hereinafter, exemplary embodiments will be described in more detail with reference to the drawings, wherein the same reference numerals always refer to the same elements. However, the present invention can be embodied in various different forms and should not be understood as being limited to the embodiments shown in the text. On the contrary, these embodiments are provided as examples to make the disclosure comprehensive and complete, and to fully convey the aspects and features of the present invention to those skilled in the art. Therefore, methods, elements and techniques that are not necessary for a complete understanding of the aspects and features of the present invention by those of ordinary skill in the art may not be described. Unless otherwise stated, throughout the drawings and written description, the same reference numerals represent the same elements, and therefore their descriptions are not repeated. In the drawings, the relative sizes of elements, layers and regions may be magnified for clarity.

[0055] It should be understood that although the terms "first," "second," and "third" 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 to these terms. These terms are used to distinguish one element, component, region, layer, or part from another element, component, region, layer, or part. Therefore, the first element, first component, first region, first layer, or first part described below may be defined as a second element, second component, second region, second layer, or second part without departing from the spirit and scope of the present invention.

[0056] For ease of explanation, spatially relative terms such as "below," "beneath," "below," "under," "above," and "over" may be used herein to describe the relationship of one element or feature to another element(s) or feature(s) as shown in the accompanying drawings. It should be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. For example, if the device in the figures is turned over, an element described as "below" or "beneath" or "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary terms "below" and "under" can include both above and below orientations. The device may be oriented otherwise (e.g., rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0057] It should be understood that when an element, layer, region, or component is referred to as being “on,” “connected to,” or “coupled to” another element, layer, region, or component, it can be directly on, connected to, or coupled to the other element, layer, region, or component, or one or more intervening elements, layers, regions, or components may be present. Additionally, it should be understood that when an element or layer is referred to as being “between” two elements or layers, it can be the only element or layer between the two elements or layers, or one or more intervening elements or layers may also be present.

[0058] In the following examples, the x-axis, y-axis, and z-axis are not limited to the three axes of the rectangular coordinate system and can be interpreted in a broader sense. For example, the x-axis, y-axis, and z-axis can be perpendicular to each other, or can represent different directions that are not perpendicular to each other.

[0059] The terms used herein are only used for the purpose of describing specific embodiments and are not intended to limit the present invention. Unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" used herein are also intended to include plural forms. It should also be understood that when the terms "comprises", "comprising" and / or "including" are used in this specification, they indicate the presence of the features, wholes, steps, operations, elements and / or components described, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof. As used in this article, the term "and / or" includes any and all combinations of one or more related enumeration items. When an expression such as "at least one" precedes a series of elements, it modifies the entire series of elements rather than a single element in the modification series.

[0060] As used herein, the terms "substantially," "approximately," and the like are used as terms of approximation, rather than terms of degree, and are intended to take into account the inherent deviations in measurements or calculations recognized by those of ordinary skill in the art. In addition, when describing embodiments of the present invention, the use of "may" refers to "one or more embodiments of the present invention." As used herein, the terms "use," "using," and "used" may be considered synonymous with the terms "utilize," "utilizing," and "utilized," respectively. Likewise, the term "example" is intended to refer to an instance or illustration.

[0061] When some embodiments can be implemented differently, the specific processing order can be performed in a different order than described. For example, two consecutively described processes can be performed substantially simultaneously or in a reverse order to the described order.

[0062] Any suitable hardware, firmware (e.g., application specific integrated circuit), software, or a suitable combination of software, firmware, and hardware can be used to implement the electronic or electrical devices and / or any other related devices or components according to the embodiments of the present invention described herein. For example, the various components of these devices can be formed on an integrated circuit (IC) chip or on an independent IC chip. In addition, the various components of these devices can be implemented on a flexible printed circuit film, a carrier package (TCP), a printed circuit board (PCB), or formed on a substrate. In addition, the various components of these devices can be processes or threads running on one or more processors in one or more computing devices for executing computer program instructions and interacting with other system components to perform the various functions described herein. The computer program instructions are stored in a memory that can be implemented in a computing device using a standard memory device (such as, for example, a random access memory (RAM)). The computer program instructions can also be stored in other non-volatile computer-readable media, such as, for example, a CD-ROM, a flash drive, etc. In addition, those skilled in the art will recognize that the functions of various computing devices can be combined or integrated into a single computing device, or the functions of a specific computing device can be distributed across one or more other computing devices without departing from the spirit and scope of the exemplary embodiments of the present invention.

[0063] Unless otherwise expressly defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. It should be further understood that terms (such as those used in commonly used dictionaries) should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology and / or this specification, and should not be interpreted in an idealized or overly formal sense unless expressly defined as such herein.

[0064] Figure 1 is a block diagram showing a display device 1 according to an embodiment.

[0065] refer to Figure 1 The display device 1 is an active type organic light emitting display device and includes a pixel array 10, a first scan driver 20, a second scan driver 30, and a data driver 40. Each pixel PX includes a pixel circuit and an organic light emitting diode (OLED) connected to the pixel circuit.

[0066] The pixel array 10 includes a plurality of pixels PX located at intersections of a plurality of scan lines SL1a to SLna and SL1b to SLnb and a plurality of data lines DL1 to DLm, with the pixels PX being arranged in a matrix configuration. In this embodiment, the plurality of scan lines SL1a to SLna and SL1b to SLnb extend in a first direction (which is a row direction), and the plurality of data lines DL1 to DLm extend in a second direction (which is a column direction).

[0067] Each pixel PX is connected to one of the plurality of scanning lines SL1a to SLna and SL1b to SLnb transmitted to the pixel array 10. Although each pixel PX is connected to the corresponding Figure 1 In another embodiment, each pixel PX may be connected to two scan lines.

[0068] The first scan driver 20 and the second scan driver 30 may be on opposite sides of the pixel array 10 and may perform dual scanning. For example, the first scan driver 20 generates a scan signal and transmits the scan signal to some of the pixels PX, and the second scan driver 30 generates a scan signal and transmits the scan signal to the other pixels PX. The first scan driver 20 and the second scan driver 30 may be synchronized by a synchronization clock signal.

[0069] The data driver 40 transmits data signals to the respective pixels PX through a plurality of data lines DL1 to DLm.

[0070] The controller 50 changes a plurality of externally generated image signals into a plurality of image data signals and transmits the plurality of image data signals to the data driver 40. The controller 50 receives a synchronization signal and a clock signal, generates a control signal for controlling driving of the data driver 40 and the first scan driver 20 and the second scan driver 30, and transmits the control signal to the data driver 40 and the first scan driver 20 and the second scan driver 30.

[0071] Each pixel PX emits light having brightness (eg, predetermined brightness) by using a driving current supplied to the OLED according to a data signal provided through a corresponding one of the data lines DL1 to DLm.

[0072] Figure 2 is a plan view showing a display device according to an embodiment.

[0073] refer to Figure 2 , the substrate 100 includes a display area DA and a non-display area NA.

[0074] The display area DA is a region where the pixel array 10 is located, and provides an image (eg, a predetermined image) by using light emitted through a plurality of pixels PX in the display area DA.

[0075] The substrate 100 includes a through hole (through hole portion) TH passing through the substrate 100. The through hole TH is surrounded by a plurality of pixels PX.

[0076] The non-display area NA includes a first non-display area NA1 and a second non-display area NA2. The first non-display area NA1 surrounds the outline of the through hole TH and corresponds to the area between the through hole TH and the pixel PX adjacent to the through hole TH. The first non-display area NA1 is surrounded by the display area DA. The second non-display area NA2 surrounds the outline of the display area DA. The first non-display area NA1 is separated from the second non-display area NA2 by a portion of the display area DA.

[0077] The first scan driver 20 and the second scan driver 30 are in the second non-display area NA2. The first scan driver 20 and the second scan driver 30 are separated from each other by the pixel array 10 of the display area DA interposed therebetween. The scan signal generated by the first scan driver 20 is supplied to some pixels PX via the scan lines SLia (i=1, 2, ..., n), and the scan signal generated by the second scan driver 30 is supplied to some pixels PX via the scan lines SLib (i=1, 2, ..., n).

[0078] The pad portion PAD is located in the second non-display area NA2. The data driver 40 (see Figure 1 ) may be mounted over the pad portion PAD in the form of an integrated circuit (IC). Data signals generated by the data driver 40 are supplied to the respective pixels PX through the data lines DLj (j=1, 2, . . . , m).

[0079] Although Figure 2 The through hole TH is shown as being formed in the upper right portion of the display device 1 , but the inventive concept is not limited thereto. The through hole TH may be located in the display device 1 , may be surrounded by the pixels PX, and its specific location is not limited.

[0080] Although Figure 2 The through hole TH is shown to have a circular shape and only one through hole TH is formed, but the present inventive concept is not limited thereto. The through hole TH may have various shapes including a polygon (such as a quadrangle) or an ellipse, and the number of through holes TH is not limited.

[0081] Similarly, although Figure 2The first non-display area NA1 surrounding the through hole TH has a circular shape according to the shape of the through hole TH, but the present invention is not limited thereto. The first non-display area NA1 may have various shapes including a polygon such as a quadrangle or an ellipse, and is not limited thereto.

[0082] Although Figure 2 The display area DA is shown as having a quadrangular shape, but the inventive concept is not limited thereto. The display area DA may have various shapes, including polygons such as triangles and pentagons, or circular or elliptical shapes.

[0083] Figure 3A It is magnified Figure 2 The plan view of part IIIa, Figure 3B It is a depiction Figure 3A A part of the floor plan, Figure 3C It shows Figure 3A A plan view of an improved embodiment of Figure 4 It is along Figure 3A A cross-sectional view taken along line IV-IV of FIG. Figure 5 It is magnified Figure 2 Plan view of section V.

[0084] refer to Figure 3A , multiple pixels PX surround the through hole TH, and each pixel PX is connected to a respective one of the scan lines SLia or SLib (i=1, 2, ..., n) and a respective one of the data lines DLj (j=1, 2, ..., m) to receive scan signals and data signals.

[0085] A plurality of scan lines SLia and SLib (i=1, 2, ..., n) extend in the first direction, and the scan line SLia or SLib extending toward the through hole TH may be disconnected (or cut off) around the through hole TH (for example, due to the existence of the through hole TH, the scan line SLia may end next to the through hole TH). A portion of the scan line SLia that is cut around the through hole TH and located on the left side of the through hole TH receives a scan signal from the first scan driver 20 (see Figure 2 ), and transmits the received scan signal to the relevant pixel PX, and a portion of the scan line SLib cut around the through hole TH and located on the right side of the through hole TH can receive the scan signal from the second scan driver 30, and / or can receive the emission control signal (see Figure 2 ) and transmits the received signal to the relevant pixel PX.

[0086] Some of the data lines DLj-3 to DLj+2 from the plurality of data lines DLj (j=1, 2, ..., m) extend in the second direction and bend along the outline of the through hole TH at one side of the through hole in the first non-display area NA1. The other data lines DL1, ..., DLj-4, DLj+3, ..., DLm are separated from the through hole TH and extend in the second direction in the display area DA.

[0087] The other data lines DL1, ..., DLj-4, DLj+3, ..., DLm, which are separated from the through hole TH, extend straight along the second direction and provide data signals to the pixels PX of the corresponding pixel columns. The data lines DLj-3 to DLj+2, which are bent along the through hole TH, provide data signals to the respective pixels PX on the opposite side of the through hole TH along the second direction.

[0088] For example, as in Figure 3B As shown in FIG3 , among the pixels PX spaced apart from each other along the second direction with a through hole TH interposed therebetween, the first pixel PX1 and the second pixel PX2 on the upper and lower sides of the through hole TH, respectively, receive data signals via the curved data line DLj. The curved data line DLj includes a first straight portion / straight line portion SP1, a curved portion CP connected to the first straight portion SP1 and bent in the first non-display area NA1, and a second straight portion / straight line portion SP2 connected to the curved portion CP. The first straight portion SP1, the curved portion CP, and the second straight portion SP2 can be formed entirely on the same layer. Although FIG3 depicts one curved data line DLj, the other data lines DLj-3 to DLj-1, DLj+1, and DLj+2 that are bent along the through hole TH can have the same or similar shapes.

[0089] Although Figure 3A and 3B The curved data lines DLj-3 to DLj+2 are shown as being curved with the same curvature, but the present invention is not limited thereto. Figure 3C As shown in FIG, the curved data lines DLj-3 to DLj+2 may have different curvatures.

[0090] refer to Figure 3A and Figure 4 The pixel PX is around the through hole TH passing through the substrate 100 , above the first surface 100 a of the substrate 100 , and is sealed by the thin film encapsulation layer 130 .

[0091] The substrate 100 may include a material such as glass, metal, or an organic material. According to an embodiment, the substrate 100 may include a flexible material. For example, the substrate 100 may include a material such as polyimide (PI) that can be warped, bent, or rolled up, but this is exemplary and the embodiment is not limited thereto.

[0092] A plurality of pixels PX are located in a display area DA of a substrate 100. Each pixel PX includes a pixel circuit 110 and an OLED 120 electrically connected to the pixel circuit 110. The OLED 120 includes a pixel electrode 121, an opposing electrode 123, and an intermediate layer 122 including an organic emission layer therebetween, located above a planarization layer 109. The planarization layer 109 includes an organic material.

[0093] The non-display area NA1 of the substrate 100 surrounds the through area TA corresponding to the through hole TH. The data lines DLj-3 to DLj+2 are located in the first non-display area NA1. Figure 3A and Figure 3B As described, the data lines DLj-3 to DLj+2 supply data signals to the pixels PX located above and below the through-hole TH (in a plan view), and are bent in the first non-display area NA1 (in a plan view).

[0094] Some of the curved data lines DLj-3 to DLj+2 are located at different layers. The curved data lines DLj-3 to DLj+2 may alternately be above and below the organic passivation layer 108. Because the curved data lines DLj-3 to DLj+2 are alternately located at different layers, the pitch between the data lines DLj-3 to DLj+2 may be reduced, and thus the footprint (e.g., total size) of the first non-display area NA1 in the substrate 100 may be reduced.

[0095] In order to reduce parasitic capacitance occurring therebetween, the data lines DLj-3 to DLj+2 located at different layers may not overlap with each other.

[0096] The thin film encapsulation layer 130 is over the display area DA and the first non-display area NA1 of the substrate 100. The thin film encapsulation layer 130 may prevent external oxygen and moisture from penetrating into the pixels PX and various wirings including the data lines DLj.

[0097] The thin film encapsulation layer 130 may completely cover the display area DA and the first non-display area NA1 of the substrate 100 , and may form a side surface defining the through hole TH.

[0098] refer to Figure 2 、 Figure 4 and Figure 5, the data lines DLj-3, DLj-1, and DLj+1 (which are data lines alternately located in different layers) located below the organic passivation layer 108 can be connected to the connection data lines CDL (e.g., respective connection data lines CDL). The contacts CNT (e.g., respective contacts CNT) between the data lines DLj-3, DLj-1, DLj+1 and the connection data lines CDL can be located in the second non-display area NA2. The connection data lines CDL located in the second non-display area NA2 can serve as connection lines connecting the data driver installed in the pad portion PAD to the data lines DLj-3, DLj-1, and DLj+1.

[0099] Although the present embodiment shows that the contacts CNT between the data lines DLj-3, DLj-1, and DLj+1 and the connection data line CDL are located in the second non-display area NA2, the present invention is not limited thereto. In another embodiment, the contacts CNT may be located in the first non-display area NA1 or the display area DA.

[0100] Although Figure 5 In the embodiment, the data lines DLj-3, DLj-1, and DLj+1 located below the organic passivation layer 108 from the data lines DLj-3 to DLj+2 located at different layers can be connected to the connection data line CDL, but the present embodiment is not limited thereto. Alternatively, the connection data line CDL can be connected to the data lines DLj-2, DLj, and DLj+2 located above the organic passivation layer 108.

[0101] Figure 6 is a cross-sectional view showing a portion of a display device 1A according to another embodiment, and Figure 7 It shows Figure 6 An enlarged view of part VII of the Figure 6 The display device 1A, with the above reference Figure 4 The display device 1 described above is similar, and the pixels PX on both sides of the through hole TH have the same structure. Therefore, for ease of description, Figure 6 The right side of the through-hole TH of the display device 1A is extracted and shown.

[0102] refer to Figure 6 A pixel PX including a pixel circuit 110 including a first thin film transistor T1, a second thin film transistor T2 and a storage capacitor Cst and an OLED 120 is formed in the display area DA. The pixel circuit 110 includes a first thin film transistor T1, a second thin film transistor T2 and a storage capacitor Cst. The OLED 120 is electrically connected to the pixel circuit 110.

[0103] The buffer layer 101 is above the substrate 100. The buffer layer 101 can reduce or block the penetration of foreign matter, moisture, or external air from below the substrate 100 and can provide a flat surface. The buffer layer 101 may include an inorganic material such as an oxide or a nitride and may include a multilayer or single layer including the inorganic material.

[0104] The first thin film transistor T1 is a driving thin film transistor and includes an active layer A1, a gate electrode G1, a source electrode S1, and a drain electrode D1. The second thin film transistor T2 is a switching thin film transistor and includes an active layer A2, a gate electrode G2, a source electrode S2, and a drain electrode D2. The source electrode S2 of the second thin film transistor T2 is connected to the data line DLj+3. Although this embodiment shows top-gate thin film transistors, in which the gate electrodes G1 and G2 are respectively above the active layers A1 and A2, with the gate insulating layer 103 interposed therebetween, according to another embodiment, the first thin film transistor T1 and the second thin film transistor T2 can be replaced by bottom-gate thin film transistors.

[0105] The active layers A1 and A2 may include amorphous silicon or polycrystalline silicon. According to another embodiment, the active layers A1 and A2 may include an oxide of at least one of In, Ga, Sn, Zr, V, Hf, Cd, Ge, Cr, Ti, and / or Zn.

[0106] The gate electrodes G1 and G2 may include a low-resistance metal material. For example, the gate electrodes G1 and G2 may include a conductive material including Mo, Al, Cu, Ti, etc., and may include a multilayer or single layer including the above materials.

[0107] The gate insulating layer 103 may include an inorganic material including oxide or nitride. For example, the gate insulating layer 103 may include SiO x 、SiN x , SiON, Al2O3, TiO2, Ta2O5, HfO2, ZnO2, etc.

[0108] The source electrodes S1 and S2 and the drain electrodes D1 and D2 may include a material having excellent electrical conductivity. For example, the source electrodes S1 and S2 and the drain electrodes D1 and D2 may include a conductive material including Mo, Al, Cu, Ti, etc., and may include a multilayer or single layer including the above materials. According to an embodiment, the source electrodes S1 and S2 and the drain electrodes D1 and D2 may include a multilayer including Ti / Al / Ti.

[0109] The storage capacitor Cst may include a lower electrode C1 and an upper electrode C2 located at different layers with the first interlayer insulating layer 105 interposed therebetween, and may overlap each other. The storage capacitor Cst may overlap the first thin film transistor T1.

[0110] The lower electrode C1 of the storage capacitor Cst may be at the same layer as the gate electrode G1 of the first thin film transistor T1, or may be the same as the gate electrode G1 of the first thin film transistor T1 and may include the same material as the gate electrode G1. For example, the gate electrode G1 of the first thin film transistor T1 may serve as the lower electrode C1 of the storage capacitor Cst.

[0111] The upper electrode C2 of the storage capacitor Cst is between the gate electrode G1, the source electrode S1, and the drain electrode D1 of the first thin film transistor T1. The upper electrode C2 may include a conductive material including Mo, Al, Cu, Ti, etc., and may include a multilayer or a single layer including the above materials. According to an embodiment, the upper electrode C2 may include a multilayer including Mo / Al / Mo.

[0112] The first interlayer insulating layer 105 may include an inorganic material including oxide or nitride. For example, the first interlayer insulating layer 105 may include SiO x 、SiN x , SiON, Al2O3, TiO2, Ta2O5, HfO2, ZnO2, etc.

[0113] The second interlayer insulating layer 107 is between the upper electrode C2 of the storage capacitor Cst and the source / drain electrodes S1, S2, D1, and D2, and includes an inorganic material including oxide or nitride. For example, the second interlayer insulating layer 107 may include SiO x 、SiN x , SiON, Al2O3, TiO2, Ta2O5, HfO2, ZnO2, etc.

[0114] The OLED 120 may be located above the planarization layer 109 and may be electrically connected to the first thin film transistor T1 by using a dielectric metal ML.

[0115] The planarization layer 109 may include general polymers such as polymethyl methacrylate (PMMA) and polystyrene (PS), polymer derivatives having a phenolic group, acrylic polymers, imide polymers, aromatic ether polymers, amide polymers, fluorine polymers, paraxylene polymers, vinyl alcohol polymers and / or blends thereof.

[0116] The pixel electrode 121 of the OLED 120 can be a (semi-)transparent electrode or a reflective electrode. The (semi-)transparent electrode may include, for example, indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium oxide (In2O3), indium gallium oxide (IGO), or aluminum zinc oxide (AZO). The reflective electrode may include a reflective layer containing Ag, Mg, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, and / or compounds thereof, and may further include a layer containing ITO, IZO, ZnO, and / or In2O3 above the reflective layer.

[0117] The intermediate layer 122 of the OLED 120 includes an organic emission layer that emits, for example, red, green, and / or blue light. In another embodiment, the organic emission layer may emit white light. The intermediate layer 122 may further include at least one of a hole transport layer (HTL), a hole injection layer (HIL), an electron transport layer (ETL), and / or an electron injection layer (EIL).

[0118] The opposing electrode 123 of the OLED 120 may be a reflective electrode or a (semi-) transparent electrode. The reflective electrode may include, for example, at least one of Li, Ca, LiF / Ca, LiF / Al, Al, Ag, and / or Mg. The (semi-) transparent electrode may include a layer containing Li, Ca, LiF / Ca, LiF / Al, Al, Ag, Mg, and / or compounds thereof, and may further include a layer containing a (semi-) transparent material (such as ITO, IZO, ZnO, In2O3), etc., above the layer. Although not shown, a cover layer may be additionally provided above the opposing electrode 123.

[0119] As reference Figures 2 to 4 As described above, the data lines DLj to DLj+2 that are bent along the outline (e.g., circumference or perimeter) of the through hole TH are in the first non-display area NA1. As described above, since the data lines DLj to DLj+2 are alternately located at different layers with the organic passivation layer 108 interposed therebetween, the pitch between adjacent data lines can be reduced, and thus the area of ​​the first non-display area NA1 can also be reduced.

[0120] The organic passivation layer 108 may include general polymers such as polymethyl methacrylate (PMMA) and polystyrene (PS), polymer derivatives having a phenolic group, acrylic polymers, imide polymers, aromatic ether polymers, amide polymers, fluorine polymers, paraxylene polymers, vinyl alcohol polymers and / or blends thereof.

[0121] The dam 114 is located in the first non-display area NA1 of the substrate 100. The dam 114 prevents the organic material from flowing toward the through hole TH during a process of forming the organic layer 133 of the thin film encapsulation layer 130.

[0122] The dam 114 may include an organic material. In some embodiments, the dam 114 may be formed by forming an organic passivation layer 108, a planarization layer 109, and a pixel defining layer 112, and then patterning the stacked structure of these layers. While the dam 114 is being formed, a portion of the upper surface of the second interlayer insulating layer 107 may be exposed.

[0123] The thin film encapsulation layer 130 may completely cover the substrate 100 and may have a structure in which inorganic layers and organic layers are alternately stacked. According to an embodiment, the thin film encapsulation layer 130 may include a first inorganic layer 131, an organic layer 133, and a second inorganic layer 135 stacked in sequence.

[0124] The first inorganic layer 131 and the second inorganic layer 135 may include metal oxides, metal nitrides, metal carbides, and compounds thereof. For example, the first inorganic layer 131 and the second inorganic layer 135 may include Al2O3, TiO2, Ta2O5, HfO2, ZnO2, SiO x , at least one inorganic material selected from the group consisting of AlON, AlN, SiON and / or Si3N4.

[0125] The organic layer 133 may include a polymer-based material. Examples of polymer-based materials include acrylic resins, epoxy resins, polyimide, polyethylene, and the like. The organic layer 133 may reduce internal stress in the first and second inorganic layers 131 and 135, or may supplement or correct defects in the first and / or second inorganic layers 131 and 135, and planarize the first and second inorganic layers 131 and 135.

[0126] Because the dam 114 blocks the flow of the organic material toward the through hole TH while forming the organic layer 133 , an end of the organic layer 133 may be located inside the dam 114 (eg, at a region opposite to the through hole TH with respect to the dam 114 ).

[0127] The first inorganic layer 131 and the second inorganic layer 135 extend further toward the through hole TH than the organic layer 133. The first inorganic layer 131 and the second inorganic layer 135 are in direct contact with each other outside the dam 114 (e.g., in the area between the through hole TH and the dam 114), and may form a side surface defining the through hole TH. The portion where the first inorganic layer 131 and the second inorganic layer 135 are in direct contact with each other is hereinafter referred to as a contact portion SA.

[0128] refer to Figure 6 and Figure 7Because the first inorganic layer 131 and the second inorganic layer 135 directly contact each other in the region adjacent to the through hole TH, and because the first inorganic layer 131 directly contacts the second interlayer insulating layer 107 including an inorganic material, moisture penetration along the interface direction between these layers 131 and 135 can be reduced or prevented.

[0129] The planarization layer 109 includes an organic material and covers the data lines DLj to DLj+2 located in the first non-display area NA1. The planarization layer 109 (which is an organic material) has low moisture barrier properties. The possibility of moisture penetration through the above-mentioned contact portion SA and the contact structure between the contact portion SA and the second interlayer insulating layer 107 is reduced. However, if moisture penetrates through the interface between the planarization layer 109 and the layer contacting the planarization layer 109, the data lines DLj to DLj+2 may be damaged.

[0130] To reduce or eliminate this possibility, the curved data lines DLj to DLj+2 may be located inside the dam 114 in the first non-display area NA1. The data lines DLj to DLj+2 may be spaced apart from the through hole TH so that the dam 114 and the contact portion SA are located between the curved data lines DLj to DLj+2 and the through hole TH, thereby further reducing the possibility of moisture penetration.

[0131] Figure 8 is a cross-sectional view showing a portion of a display device 1B according to another embodiment. Figure 8 The display device 1B and the reference Figure 6 and Figure 7 The display device 1A described is different in that the organic passivation layer 108 between the source / drain electrodes S1, S2, D1, D2 and the pixel electrode 121 is omitted, and the structure and position of the curved data lines DLj to DLj+2 are different. For ease of description, the main description is different from the reference Figure 6 and Figure 7 Points of embodiment described.

[0132] refer to Figure 8 , the data lines DLj to DLj+2 bent along the outline / perimeter of the through hole TH may be in the first non-display area NA1, and some of the data lines DLj and DLj+2 from the data lines DLj to DLj+2 may be above the planarization layer 109, while other data lines DLj+1 of the data lines DLj to DLj+2 may be below the planarization layer 109. The pixel defining layer 112 may cover the data lines DLj to DLj+2.

[0133] According to an embodiment, some of the data lines DLj and DLj+2 from among the bent data lines above the planarization layer 109 may include a first layer L1 and a second layer L2.

[0134] The first layer L1 may include the same material as the dielectric metal ML, and the second layer L2 may include the same material as the pixel electrode 121. The first layer L1 and the second layer L2 may include different materials.

[0135] Although the present embodiment describes a case where some of the data lines DLj and DLj+2 include two layers, the inventive concept is not limited thereto. In another embodiment, some of the data lines DLj and DLj+2 may include only the first layer L1.

[0136] The pixel-defining layer 112 includes an organic material and covers the data lines DLj to DLj+2 located in the first non-display area NA1. The pixel-defining layer 112 (which is an organic material) has low moisture barrier properties. Due to the contact portion SA and the contact structure between the contact portion SA and the second interlayer insulating layer 107, the possibility of moisture penetration is reduced. However, if moisture penetrates through the interface between the pixel-defining layer 112 and the layer contacting the pixel-defining layer 112, the data lines DLj to DLj+2 may be damaged.

[0137] To reduce or eliminate this possibility, the curved data lines DLj to DLj+2 may be located inside the dam 114 in the first non-display area NA1. The data lines DLj to DLj+2 may be spaced apart from the through hole TH so that the dam 114 and the contact portion SA are located between the curved data lines DLj to DLj+2 and the through hole TH, thereby further reducing the possibility of moisture penetration.

[0138] Figure 9 1C is a cross-sectional view showing a portion of a display device 1C according to another embodiment. Figure 8 Compared with the display device 1B described above, some data lines DLj and DLj+2 of the display device 1C are different. Figure 8 Points of embodiment described.

[0139] refer to Figure 9 , the data lines DLj and DLj+2 located above the planarization layer 109 from among the bent data lines DLj to DLj+2 are at the same layer as the pixel electrode 121 and include the same material as the pixel electrode 121. Because some of the data lines DLj and DLj+2 include the same material as the pixel electrode 121 and are at the same layer as the pixel electrode 121, the number of masks can be reduced during the manufacturing process.

[0140] Figure 10 1D is a cross-sectional view showing a portion of a display device 1D according to another embodiment. Figure 6 and Figure 7 Compared with the display device 1A described above, Figure 10The display device 1D is different from the display device 1A in that the organic passivation layer 108 between the source / drain electrodes S1, S2, D1, D2 and the pixel electrode 121 is omitted, and the structure and position of the bent data lines DLj to DLj+2 are different. For the convenience of description, the main description is different from the reference Figure 6 and Figure 7 Points of embodiment described.

[0141] refer to Figure 10 , the data line DLj+1 from the curved data lines DLj to DLj+2 may be at the same layer as the source electrode S1 and the drain electrode D1 of the first thin film transistor T1 and may include the same material as the source electrode S1 and the drain electrode D1. The other data lines DLj and DLj+2 of the data lines DLj to DLj+2 may be at the same layer as the top electrode C2 of the storage capacitor Cst and may include the same material as the top electrode C2.

[0142] Since some of the data lines DLj and DLj+2 include the same material and are at the same layer as the upper electrode C2 of the storage capacitor Cst, the number of masks may be reduced during a manufacturing process.

[0143] Figure 11 is a plan view showing a portion of a display device 1E according to another embodiment, and Figure 12 It is along Figure 11 The cross-sectional view taken along line XX of FIG. Figure 6 and Figure 7 Compared with the display device 1A described above, Figure 11 and Figure 12 The positions of the data lines DLj to DLj+2 of the display device 1E are different. For the convenience of description, the main description is different from the reference Figure 6 and Figure 7 Points of embodiment described.

[0144] refer to Figure 11 and Figure 12 , the bent data lines DLj to DLj+2 are alternately located at different layers, but are located in the display area DA instead of the first non-display area NA1.

[0145] The curved data lines DLj to DLj+2 can apply data signals to pixels PX1 and PX2 that are separated from each other along the second direction by the through hole TH interposed therebetween. The curved data lines DLj to DLj+2 can overlap with the pixel electrode 121 of the third pixel PX3. The third pixel PX3 is connected to the data line DLj+3 and receives a data signal from the data line DLj+3, which is separated from the through hole TH and extends in a straight line along the second direction. The data line DLj+3 connected to the third pixel PX3 is located on the same layer as the data line DLj+1.

[0146] Because the bent data lines DLj to DLj+2 overlap the pixel electrode 121 of the third pixel PX3 connected to the data line DLj+3 separated from the through hole TH, the dam 114 can be relatively isolated in the first non-display area NA1 of the substrate 100. Therefore, the occupation ratio or relative size of the first non-display area NA1 in the substrate 100 can be reduced.

[0147] Figure 13A 1F is a cross-sectional view showing a portion of a display device 1F according to another embodiment. Figure 6 and Figure 7 Compared with the display device 1A described above, Figure 13A The display device 1F further includes an inorganic passivation layer 108a covering the bent data lines DLj to DLj+2. Moreover, the relationship with the contact portion SA is different. For ease of description, the main description is different from the reference Figure 6 and Figure 7 Points of embodiment described.

[0148] refer to Figure 13A , an inorganic passivation layer 108a is formed on the substrate 100 to cover the bent data lines DLj to DLj+2. The inorganic passivation layer 108a may include an inorganic material including oxide or nitride. For example, the inorganic passivation layer 108a may include SiO x 、SiN x , SiON, Al2O3, TiO2, Ta2O5, HfO2, ZnO2, etc.

[0149] The curved data lines DLj and DLj+2 are covered by the inorganic passivation layer 108a while directly contacting the inorganic passivation layer 108a. Compared with the planarization layer 109 (which is an organic material), the inorganic passivation layer 108a containing an inorganic material has excellent moisture barrier properties. Therefore, even when the distance between the curved data lines DLj to DLj+2 and the through hole TH is reduced, the barrier performance or moisture penetration prevention performance is not degraded. In this case, the floor space of the first non-display area NA1 in the substrate 100 can be reduced without degrading the moisture penetration prevention performance.

[0150] As the distance between the curved data lines DLj to DLj+2 and the through hole TH decreases, at least one data line DLj (or a portion thereof) from the curved data lines DLj to DLj+2 may overlap with the dam 114 and the contact portion SA between the first inorganic layer 131 and the second inorganic layer 135 .

[0151] Figure 13B is a cross-sectional view showing a portion of a display device 1F' according to another embodiment. Figure 13A Compared with the display device 1F described, Figure 13B The structure and position of the curved data lines DLj to DLj+2 of the display device 1F' are different, and the organic passivation layer 108 is omitted. For the convenience of description, the main description is different from the reference Figure 13A Points of embodiment described.

[0152] refer to Figure 13B , the data line DLj+1 can be on the same layer as the source electrode S1 and the drain electrode D1 of the first thin film transistor T1 and can include the same material as the source electrode S1 and the drain electrode D1 of the first thin film transistor T1. The other data lines DLj and DLj+2 can be on the same layer as the top electrode C2 of the storage capacitor Cst and can include the same material as the top electrode C2 of the storage capacitor Cst. Therefore, the number of masks can be reduced.

[0153] Moreover, since the inorganic passivation layer 108a covers the bent data lines DLj to DLj+2, as shown in FIG. Figure 13A As described, the occupation ratio of the first non-display area NA1 in the substrate 100 may be reduced without deteriorating the moisture penetration preventing performance, as described above.

[0154] Figure 14A is a cross-sectional view showing a portion of a display device 1G according to another embodiment. Figure 14A The display device 1G is Figure 13A An improved example of the display device 1F, and with Figure 13A The display device 1F of FIG. 1 is different in that the meandering data lines DLj to DLj+2 are covered by and in direct contact with the passivation layer 108 b containing organic-inorganic composite particles instead of the inorganic passivation layer 108 a .

[0155] The passivation layer 108b containing organic-inorganic composite particles is an organic layer containing propylene, polyolefin, polyimide (PI), polyurethane, polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polybutylene terephthalate (PBT), polyethersulfone (PES), etc., and has a structure in which the organic-inorganic composite particles are formed in the free volume of these organic layers. The passivation layer 108b containing organic-inorganic composite particles can be formed by forming an organic layer and then performing a continuous vapor infiltration process.

[0156] The curved data lines DLj to DLj+2 are covered by the passivation layer 108b containing organic-inorganic composite particles and directly contact the passivation layer 108b. When compared with the planarization layer 109 (which is an organic material), the passivation layer 108b containing organic-inorganic composite particles has excellent moisture barrier properties. Therefore, even when the distance between the curved data lines DLj to DLj+2 and the through hole TH is reduced, the moisture penetration prevention performance is maintained. In this case, the floor space of the first non-display area NA1 in the substrate 100 can be reduced without degrading the moisture penetration prevention performance.

[0157] As the distance between the curved data lines DLj to DLj+2 and the through hole TH decreases, at least one data line DLj (or a portion thereof) from the curved data lines DLj to DLj+2 may overlap with the dam 114 and the contact portion SA between the first inorganic layer 131 and the second inorganic layer 135 .

[0158] Figure 14B is a cross-sectional view showing a portion of a display device 1G′ according to another embodiment. Figure 14A Compared with the display device 1G described, Figure 14B The structure and position of the curved data lines DLj to DLj+2 of the display device 1G' are different, and the organic passivation layer 108 is omitted. For the convenience of description, the main description is different from the reference Figure 14A Points of embodiment described.

[0159] refer to Figure 14B , the data line DLj+1 from the curved data lines DLj to DLj+2 can be at the same layer as the source electrode S1 and the drain electrode D1 and can include the same material as the source electrode S1 and the drain electrode D1, and the other data lines DLj and DLj+2 from the curved data lines DLj to DLj+2 can be at the same layer as the upper electrode C2 of the storage capacitor Cst and can include the same material as the upper electrode C2 of the storage capacitor Cst. Therefore, the number of masks can be reduced.

[0160] Furthermore, since the passivation layer 108b including the organic-inorganic composite particles covers the bent data lines DLj to DLj+2, as shown in FIG. Figure 14A As described, the size / occupancy rate of the first non-display area NA1 in the substrate 100 can be reduced without deteriorating the above-mentioned moisture permeation preventing performance.

[0161] Figure 15A is a plan view illustrating a portion of a display device 1H according to another embodiment, Figure 15B It is a depiction Figure 15A a floor plan of a portion of Figure 16 It is along Figure 15A A cross-sectional view taken along line XIV-XIV of FIG.

[0162] Figure 15A 、 Figure 15B and Figure 16 The display device 1H is compared with the reference Figure 3A 、 Figure 3B and Figure 4 The display device 1 described is different in that the portion forming each of the bent data lines DLj-3 to DLj+2 is located in a different layer. Figure 3A 、 Figure 3B and Figure 4 Points of embodiment described.

[0163] refer to Figure 15A 、 Figure 15B and Figure 16 , the bent data lines DLj-3 to DLj+2 are alternated at different layers. Figure 15B As shown in FIG, the curved portion CP of one data line DLj is formed in a different layer from the first straight portion SP1 and the second straight portion SP2. The first straight portion SP1 is connected to the curved portion CP via a first contact hole CNT1, and the second straight portion SP2 is connected to the curved portion CP via a second contact hole CNT2.

[0164] The first straight portion SP1 and the second straight portion SP2 of each of the curved data lines DLj-3 to DLj+2 may be above and below the organic passivation layer 108. According to an embodiment, the first straight portion SP1 and the second straight portion SP2 of each of the data lines DLj-2 and DLj+1 may be at the same layer as the source electrodes S1, S2 and the drain electrodes D1, D2 located below the organic passivation layer 108. The first straight portion SP1 and the second straight portion SP2 of the other data lines DLj-3, DLj-1, DLj, and DLj+2 may be at a layer between the pixel electrode 121 and the source electrodes S1, S2 and the drain electrodes D1, D2 located above the organic passivation layer 108.

[0165] At the same time, as in Figure 16 As shown in the figure, the bent portion CP of the data lines DLj-2 and DLj+1 can be at the same layer as the lower electrode C1 of the storage capacitor Cst, and the bent portion CP of each of the other data lines DLj-3, DLj-1, DLj and DLj+2 can be at the same layer as the upper electrode C2 of the storage capacitor Cst.

[0166] As in Figure 16 As shown in FIG, in the case where the curved portion CP alternates in the layer where the upper electrode C2 and the lower electrode C1 of the storage capacitor Cst are located, the related data lines DLj-3 to DLj+2 are covered by the second interlayer insulating layer 107 (which is an inorganic layer) and directly contact the second interlayer insulating layer 107. The second interlayer insulating layer 107, which is an inorganic layer, has excellent moisture barrier properties. Therefore, even when the spacing distance between the curved data lines DLj-3 to DLj+2 and the through hole TH is reduced, the moisture penetration prevention performance is maintained. In this case, the footprint of the first non-display area NA1 in the substrate 100 can be reduced without degrading the moisture penetration prevention performance.

[0167] In an embodiment, at least portions of the data lines DLj-2, DLj-1, DLj, DLj+2 from among the bent data lines DLj-3 to DLj+2 may overlap the dam 114 and the contact portion SA.

[0168] 17A to 17C is a view showing an electronic device having a display apparatus according to an embodiment.

[0169] refer to Figure 17A , the display device according to the above embodiment may be provided to the mobile phone 1000. The pixel array of the display device according to the above embodiment may form the display 1100 of the mobile phone 1000, and a component 1200 such as a camera may be located inside the through hole TH.

[0170] The position of the through hole TH is not limited to Figure 17A For example, in another embodiment, the through hole TH may be formed in the lower center portion of the display of the mobile phone 1000. In this case, the button may be located inside the through hole TH.

[0171] refer to Figure 17B The display device according to the above embodiment may be provided to the smart watch 2000. The pixel array of the display device according to the above embodiment may form the display 2100 of the smart watch 2000, and the driving unit DU (which may include a minute hand and an hour hand) may be located inside the through hole TH.

[0172] refer to Figure 17CThe display device according to the above embodiment may be provided to the instrument panel 3000 of the vehicle. The pixel array of the display device according to the above embodiment may form the display 3100 of the instrument panel 3000 of the vehicle, and a plurality of through holes TH may be provided.

[0173] According to an embodiment, a first driving unit DU1 including a pointer indicating revolutions per minute (RPM), and a second driving unit DU2 including a pointer indicating a speed may be respectively provided to the through hole TH.

[0174] Although the present invention has been described with reference to the exemplary embodiments shown in the accompanying drawings, these are provided for illustrative purposes only, and those skilled in the art will appreciate that various modifications and other equivalent embodiments may be made therein. Therefore, the spirit and scope of the present invention should be defined by the claims and their functional equivalents.

Claims

1. A display device, comprising: a substrate having a front surface and a rear surface, wherein the substrate has a through hole extending from the front surface to the rear surface; a plurality of pixels located on the front surface of the substrate, the plurality of pixels being arranged in a display area around the through hole; a plurality of scan lines extending along a first direction in the display area and providing scan signals to the plurality of pixels; a plurality of data lines extending in a second direction intersecting the first direction in the display area and providing data signals to the plurality of pixels, the plurality of data lines including a first data line and a second data line each including a bent portion, the bent portion being bent along a perimeter of the through hole; an insulating layer disposed between the bent portion of the first data line and the bent portion of the second data line; a dam located in a non-display area between the display area and the through hole; as well as an encapsulation layer, located on the plurality of pixels and comprising an organic layer and at least one inorganic layer; wherein the bent portion of the first data line and the bent portion of the second data line are located between the display area and the dam in the non-display area; wherein the at least one inorganic layer of the encapsulation layer comprises a first inorganic layer and a second inorganic layer, and Wherein, the organic layer of the encapsulation layer is located between the first inorganic layer and the second inorganic layer.

2. The display device according to claim 1, wherein An edge of the first inorganic layer and an edge of the second inorganic layer are closer to the through hole than an edge of the organic layer.

3. The display device according to claim 2, wherein The first inorganic layer and the second inorganic layer are in direct contact with each other around the through hole. The display device according to claim 1 , wherein: An edge of the first inorganic layer and an edge of the second inorganic layer correspond to an edge of the substrate defining the through hole.

5. The display device according to claim 1, wherein At least one data line selected from the first data line and the second data line includes: A first portion is located in the display area; and a second portion located in the non-display area and including the bent portion along the perimeter of the through hole, The first portion and the second portion are connected to each other via a contact hole in the insulating layer. The display device according to claim 5 , wherein: The contact hole in the insulating layer is positioned in the non-display area.

7. The display device according to claim 1, wherein The bent portion of the first data line and the bent portion of the second data line do not overlap each other.

8. The display device according to claim 1, wherein: Each of the plurality of pixels includes a first electrode, a second electrode, and an intermediate layer between the first electrode and the second electrode, and The intermediate layer overlaps at least one data line selected from the first data line and the second data line in the non-display area.

9. The display device according to claim 1, wherein A pitch between the bent portion of the first data line in the non-display area and the bent portion of the second data line in the non-display area is smaller than a pitch between portions of the first data line in the display area and portions of the second data line in the display area.

10. A display device comprising: a substrate having a front surface and a rear surface, the substrate having a through hole extending from the front surface to the rear surface; a plurality of pixels located on the front surface of the substrate, the plurality of pixels being arranged in a display area around the through hole; a plurality of scan lines extending along a first direction in the display area and providing scan signals to the plurality of pixels; a plurality of data lines extending in a second direction intersecting the first direction in the display area and providing data signals to the plurality of pixels, the plurality of data lines including a first data line and a second data line each including a bent portion, the bent portion being bent along a perimeter of the through hole in the non-display area; an insulating layer disposed between the bent portion of the first data line and the bent portion of the second data line; a dam located in the non-display area between the display area and the through hole; as well as An encapsulation layer is located on the plurality of pixels and includes an organic layer and at least one inorganic layer, wherein the bent portion of the first data line and the bent portion of the second data line are covered by the organic layer and the at least one inorganic layer.

11. The display device according to claim 10, wherein The bent portion of the first data line and the bent portion of the second data line are located between the display area and the dam in the non-display area.

12. The display device according to claim 10, wherein An edge of the at least one inorganic layer is closer to the through hole than an edge of the organic layer.

13. The display device according to claim 12, wherein: The at least one inorganic layer of the encapsulation layer includes a first inorganic layer and a second inorganic layer, and the organic layer is located between the first inorganic layer and the second inorganic layer, and The first inorganic layer and the second inorganic layer are in direct contact with each other around the through hole.

14. The display device according to claim 13, wherein The edge of the first inorganic layer and the edge of the second inorganic layer correspond to an edge of the substrate defining the through-hole.

15. The display device according to claim 10, wherein At least one data line selected from the first data line and the second data line includes: A first portion is located in the display area; and a second portion located in the non-display area and comprising the bent portion along the perimeter of the through hole, The first portion and the second portion are connected to each other via a contact hole in the insulating layer.

16. The display device according to claim 15, wherein The contact hole in the insulating layer is positioned in a region of the non-display area between the display area and the dam.

17. The display device according to claim 10, wherein The bent portion of the first data line and the bent portion of the second data line do not overlap each other.

18. The display device according to claim 10, wherein: Each of the plurality of pixels includes a first electrode, a second electrode, and an intermediate layer between the first electrode and the second electrode, and The intermediate layer overlaps at least one data line selected from the first data line and the second data line in the non-display area.

19. The display device according to claim 10, wherein A pitch between the bent portion of the first data line in the non-display area and the bent portion of the second data line in the non-display area is smaller than a pitch between portions of the first data line in the display area and portions of the second data line in the display area.

20. A display device comprising: a substrate having a front surface, a rear surface, and a through hole extending from the front surface to the rear surface; a plurality of pixels located on the front surface of the substrate, the plurality of pixels being arranged in a display area around the through hole; a plurality of scan lines extending along a first direction in the display area and configured to provide scan line signals to the plurality of pixels; a plurality of data lines extending in a second direction intersecting the first direction in the display area and configured to provide data signals to the plurality of pixels, the plurality of data lines including a first data line and a second data line each including a bent portion, the bent portion being bent along a perimeter of the through hole; an insulating layer disposed between the bent portion of the first data line and the bent portion of the second data line; as well as an encapsulation layer located on the plurality of pixels and comprising a first inorganic layer, an organic layer, and a second inorganic layer, the first inorganic layer and the second inorganic layer being in contact with each other in a non-display area between the display area and the through hole, The bent portion of the first data line and the bent portion of the second data line are positioned between the display area and a contact area, and the contact area is located between the first inorganic layer and the second inorganic layer.

21. The display device according to claim 20, wherein: The organic layer of the encapsulation layer is located between the first inorganic layer and the second inorganic layer, and An edge of the first inorganic layer in the non-display area and an edge of the second inorganic layer in the non-display area are closer to the through hole than an edge of the organic layer in the non-display area.

22. The display device according to claim 21, wherein The edge of the first inorganic layer and the edge of the second inorganic layer correspond to an edge of the substrate defining the through-hole.

23. The display device according to claim 21, wherein The edge of the organic layer is positioned between the through hole and the bent portion of the first and second data lines.

24. The display device according to claim 20, wherein The bent portion of the first data line and the bent portion of the second data line are covered by the first inorganic layer, the organic layer, and the second inorganic layer of the encapsulation layer.

25. The display device according to claim 20, further comprising: A dam is located in the non-display area, wherein the dam is closer to the through hole than the bent portion of the first data line and the bent portion of the second data line.

26. The display device according to claim 20, wherein At least one data line selected from the first data line and the second data line includes: A first portion is located in the display area; and a second portion located in the non-display area and comprising the bent portion along the perimeter of the through hole, The first portion and the second portion are connected to each other via a contact hole in the insulating layer.

27. The display device according to claim 26, wherein The contact hole in the insulating layer is positioned in the non-display area.

28. The display device according to claim 20, wherein The bent portion of the first data line and the bent portion of the second data line do not overlap each other.

29. The display device according to claim 20, wherein Each of the plurality of pixels includes a first electrode, a second electrode, and an intermediate layer between the first electrode and the second electrode.

30. The display device according to claim 29, further comprising: A planarization layer is located on the bent portion of the first data line and the bent portion of the second data line, wherein the first electrode of each of the plurality of pixels is located on the planarization layer.

31. The display device according to claim 29, wherein The intermediate layer includes at least one selected from an organic emission layer, a hole transport layer, a hole injection layer, an electron transport layer, and an electron injection layer, and covers the bent portion of the first data line and the bent portion of the second data line.

32. The display device according to claim 20, wherein A pitch between the bent portion of the first data line in the non-display area and the bent portion of the second data line in the non-display area is smaller than a pitch between portions of the first data line in the display area and portions of the second data line in the display area.

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