KR20240046858A - Display apparatus - Google Patents

Abstract

The present invention provides a display device that can improve user convenience and a manufacturing method thereof, which is disposed on a substrate and includes first and second pixels spaced apart from each other and between the first pixel and the second pixel. A display device and manufacturing method are provided, including a first through-hole, wherein the first pixel extends along a first direction, and the second pixel extends along a second direction intersecting the first direction.

Description

Display apparatus {Display apparatus}

The present invention relates to a display device, and more specifically, to a display device that can improve user convenience.

Recently, the uses of display devices have become more diverse. In particular, the thickness of display devices is becoming thinner and lighter, and the scope of their use is expanding.

Meanwhile, in recent years, display devices are being replaced by portable, thin, flat display devices.

However, it is not easy to improve the durability of such conventional flat display devices due to the predetermined thickness and difficulties in the manufacturing process. In particular, recently, display devices have been required to be flexible, such as bending or folding, depending on the user's intention when carrying them or during manufacturing. However, it is not easy to manufacture display devices to ensure such flexibility while maintaining durability. .

There is a limit to improving user convenience through this.

The present invention is intended to solve various problems including the problems described above, and its purpose is to provide a display device that can improve user convenience and a method of manufacturing the same. However, these tasks are illustrative and do not limit the scope of the present invention.

According to one aspect of the present invention, a substrate; first and second pixels disposed on the substrate and spaced apart from each other; and a first through hole located between the first pixel and the second pixel, wherein the first pixel extends along a first direction, and the second pixel extends in a second direction intersecting the first direction. A display device extending along is provided.

Other aspects, features and advantages in addition to those described above will become apparent from the following drawings, claims and detailed description of the invention.

These general and specific aspects may be practiced using any system, method, computer program, or combination of any system, method, or computer program.

According to an embodiment of the present invention as described above, a display device that can improve user convenience can be implemented. Of course, the scope of the present invention is not limited by this effect.

1 is a plan view schematically showing a display device according to an embodiment of the present invention.
Figure 2 is an enlarged plan view schematically showing part A of Figure 1.
Figure 3 is a cross-sectional view taken along line III-III in Figure 2.
FIGS. 4A to 4C are cross-sectional views taken along line VI-VI in FIG. 2.
Figure 5 is an enlarged plan view schematically showing part A of Figure 1.
Figure 6 is a plan view schematically showing an enlarged portion of part A of Figure 1.
Figure 7 is an enlarged plan view schematically showing part K of Figure 6.
8 to 12 are cross-sectional views schematically showing a manufacturing process for manufacturing a display device according to an embodiment of the present invention.

Since the present invention can be modified in various ways and can have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. The effects and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various forms.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. When describing with reference to the drawings, identical or corresponding components will be assigned the same reference numerals and redundant description thereof will be omitted. .

Since the present invention can be modified in various ways and can have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. The effects and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various forms.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. When describing with reference to the drawings, identical or corresponding components will be assigned the same reference numerals and redundant description thereof will be omitted. .

In the following embodiments, terms such as first and second are used not in a limiting sense but for the purpose of distinguishing one component from another component. Additionally, singular expressions include plural expressions unless the context clearly dictates otherwise.

Meanwhile, terms such as include or have mean that the features or components described in the specification exist, and do not preclude the possibility of adding one or more other features or components. In addition, when a part of a membrane, region, component, etc. is said to be “on” or “on” another part, it does not only mean that it is “directly on” or “directly on” the other part, but also when it is said to be “directly on” or “immediately on” the other part, as well as other membranes in between. This also includes cases where areas, components, etc. are involved.

In the drawings, the sizes of components may be exaggerated or reduced for convenience of explanation. For example, the size and thickness of each component shown in the drawings are shown arbitrarily for convenience of explanation, so the present invention is not necessarily limited to what is shown.

The x-axis, y-axis, and z-axis are not limited to the three axes in the Cartesian coordinate system and can be interpreted in a broad sense including these. For example, the x-axis, y-axis, and z-axis may be orthogonal to each other, but may also refer to different directions that are not orthogonal to each other.

In cases where an embodiment can be implemented differently, a specific process sequence may be performed differently from the described sequence. For example, two processes described in succession may be performed substantially at the same time, or may be performed in an order opposite to that in which they are described.

FIG. 1 is a plan view schematically showing a display device according to an embodiment of the present invention, and FIG. 2 is an enlarged plan view schematically showing part A of FIG. 1 .

1 and 2, the display device 1 includes a substrate 100. A display area (DA) and a non-display area (NDA) are defined on the substrate 100. One or more pixels PU and a penetration portion 400 are formed in the display area DA.

The substrate 100 may include various materials. Specifically, the substrate 100 may be formed of glass, metal, organic material, or other materials. For example, the substrate 100 may be formed of a flexible material. That is, the substrate 100 may be formed of a material that can bend, bend, fold, or roll. The flexible material forming the substrate 100 may be ultra-thin glass, metal, or plastic. When the substrate 100 includes plastic, the flexible substrate 100 is made of plastic such as PET (Polyethylen terephthalate), PEN (Polyethylen naphthalate), polyimide, etc., which has excellent heat resistance and durability and has characteristics that enable curved surfaces. It can be formed into ashes.

This substrate 100 may be divided into a display area (DA) and a non-display area (NDA). The display area DA is an area where a plurality of pixels PU are arranged and an image can be displayed. The display area DA may include a pixel area where a plurality of pixels PU are located and a spaced area between the pixel areas. The pixel PU may be equipped with a display element (not shown) to implement visible light.

The non-display area NDA may be formed adjacent to the display area DA. In FIG. 1, the non-display area NDA is shown to surround the display area DA. As another example, the non-display area NDA may be formed adjacent to one side of the display area DA. As another embodiment, the non-display area NDA may be formed adjacent to two or three sides of the display area DA. Additionally, in some cases, only the display area DA may exist on the substrate 100. That is, although not shown, the substrate 100 may have only a display area (DA) without a non-display area (NDA).

One or more pixels PU and a penetrating portion 400 may be disposed in the display area DA. At this time, a separation area (BA) may be disposed between one pixel (PU) and another pixel (PU) adjacent to it. The penetrating portion 400 may be disposed in the separation area BA. In some cases, the penetrating portion 400 may be arranged to be spaced apart from the pixel PU.

The pixel PU includes a display element, which may be an organic light emitting element or a liquid crystal element. This will be described in detail later.

The penetrating portion 400 is formed in the substrate 100 . That is, the penetrating portion 400 is formed to have an inner surface that penetrates the substrate 100. As an example, the through portion 400 may be formed by removing an area of the substrate 100 using a method such as etching. As another example, the through portion 400 may be formed during manufacturing of the substrate 100. You can. Examples of the process by which the penetrating portion 400 is formed in the substrate 100 may vary, and there is no limitation to the manufacturing method. The penetrating portion 400 may have a shape extending long in the separation area BA between the pixel PU and the adjacent pixel PU.

The penetrating part 400 includes a first penetrating part 410 and a second penetrating part 420. The separation area (BA) includes a first separation area (BA1) and a second separation area (BA2). The first penetrating part 410 is disposed in the first spacing area BA1, and the second penetrating part 420 is disposed in the second spacing area BA2. Hereinafter, the penetrating portion 400 will be described in detail.

First, the separation area BA includes a first separation area BA1 and a second separation area BA2. The first spaced area BA1 may be understood as an area between two pixels PU adjacent to each other in a first direction, for example, the X-axis direction of FIG. 2 . The second spaced area BA2 may be understood as an area between two pixels PU adjacent to each other in a second direction intersecting the first direction, for example, the Y-axis direction of FIG. 2 . In some cases, the first direction and the second direction may be perpendicular to each other.

The first penetrating part 410 of the penetrating part 400 may be disposed in the first spaced area BA1. The first penetration portion 410 may have a shape that extends long along a direction intersecting the first direction (X-axis direction), for example, in the second direction (Y-axis direction).

In one embodiment of the present invention, the first penetrating portion 410 may be formed to pass through the first separation area BA1, for example, an area extending from the first separation area BA1 and a second separation area. The area extending (BA2) may be formed to correspond to the overlapping area.

In addition, the first penetrating portion 410 not only forms a first separation area BA1 between two pixels PU adjacent in the first direction, but also forms a space between the two pixels PU adjacent in the first direction and each other in the second direction. It may have a shape extending long enough to correspond to the first separation area BA1 between two adjacent pixels PU.

Through this, the first through portion 410 corresponds to one side of each of the two pixels (PU) adjacent in the first direction, and each of the two pixels (PU) adjacent in the first direction and the two adjacent pixels (PU) in the second direction are respectively connected to each other. It may correspond to one side of each pixel (PU). For example, four pixels PU may be arranged around one first penetration part 410 to correspond to each other.

Specifically, as shown in FIG. 2, there are two pixels (PU) on both left and right sides of the first penetration part 410 with the first penetration part 410 in between, and a lower part of the first penetration part 410. Two pixels PU may be arranged to correspond to each other on both left and right sides with the first penetration part 410 in between.

The second penetrating part 420 of the penetrating part 400 may be disposed in the second spaced area BA2. The second penetrating portion 420 may have a shape that extends in a direction intersecting the second direction, for example, along the first direction.

In one embodiment of the present invention, the second penetrating portion 420 may be formed to pass through the second separation area BA2, for example, an area extending from the second separation area BA2 and the first separation area. The area extending (BA1) may be formed to correspond to the overlapping area.

In addition, the second penetrating portion 420 is formed not only in the second separation area BA2 between two pixels PU adjacent in the second direction, but also in the first direction with the two pixels PU adjacent in the second direction. It may have a shape extending long enough to correspond to the second separation area BA2 between two adjacent pixels PU.

Through this, the second through portion 420 corresponds to one side of each of the two pixels (PU) adjacent in the second direction, and the two pixels (PU) adjacent in the second direction and the two adjacent pixels (PU) in the first direction respectively. It may correspond to one side of each pixel (PU). For example, four pixels PU may be arranged to correspond to one second through portion 420.

Specifically, as shown in FIG. 2, there are two pixels (PU) on the left side of the second penetrating part 420, on both upper and lower sides of the second penetrating part 420, and on the right side of the second penetrating part 420. Two pixels (PU) may be arranged on both the top and bottom with respect to the second through portion 420.

Meanwhile, the first penetration part 410 and the second penetration part 420 may be spaced apart from each other. Referring to FIG. 2, the display device 1 of this embodiment has a through portion 400 formed in a substrate 100, and the through portion 400 includes a plurality of first through portions 410 and a plurality of second through portions. (420) may be provided.

Additionally, among the plurality of first penetration parts 410, a second penetration part 420 may be disposed between two adjacent first penetration parts 410. Among the plurality of second penetration parts 420, the first penetration part 410 may be disposed between two adjacent second penetration parts 420.

Figure 3 is a cross-sectional view taken along line III-III in Figure 2. In Figure 3, the display area (DA) of the display device according to an embodiment of the present invention is described in detail. As described above, the display elements disposed in the display area DA of the present invention may be organic light emitting elements or liquid crystal elements. In this embodiment, a display device equipped with an organic light emitting element will be described.

Referring to FIG. 3, a thin film transistor (TFT) and a capacitor may be disposed on a substrate, and an organic light emitting device electrically connected to the thin film transistor (TFT) may be disposed. A thin film transistor (TFT) includes a semiconductor layer 120, a gate electrode 140, a source electrode 160, and a drain electrode 162 including amorphous silicon, polycrystalline silicon, or an organic semiconductor material. Below, the general configuration of a thin film transistor (TFT) will be described in detail.

First, on the substrate 100, a buffer layer ( 110) may be disposed, and the semiconductor layer 120 may be located on the buffer layer 110.

A gate electrode 140 is disposed on the top of the semiconductor layer 120, and the source electrode 160 and the drain electrode 162 are in electrical communication according to a signal applied to the gate electrode 140. The gate electrode 140 is made of, for example, aluminum (Al), platinum (Pt), palladium (Pd), silver (Ag), and magnesium (Mg) in consideration of adhesion to adjacent layers, surface flatness of the stacked layer, and processability. , gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), lithium (Li), calcium (Ca), molybdenum (Mo), titanium (Ti), tungsten (W) It can be formed as a single layer or multiple layers of one or more materials including copper (Cu).

At this time, in order to ensure insulation between the semiconductor layer 120 and the gate electrode 140, a gate insulating film 130 formed of silicon oxide and/or silicon nitride is provided between the semiconductor layer 120 and the gate electrode 140. may be included.

An interlayer insulating film 150 may be disposed on the gate electrode 140, which may be formed as a single layer or a multi-layer made of a material such as silicon oxide or silicon nitride.

A source electrode 160 and a drain electrode 162 are disposed on the interlayer insulating film 150. The source electrode 160 and the drain electrode 162 are each electrically connected to the semiconductor layer 120 through contact holes formed in the interlayer insulating film 150 and the gate insulating film 130. The source electrode 160 and drain electrode 162 are made of, for example, aluminum (Al), platinum (Pt), palladium (Pd), silver (Ag), magnesium (Mg), gold (Au), nickel ( One or more of Ni), neodymium (Nd), iridium (Ir), chromium (Cr), lithium (Li), calcium (Ca), molybdenum (Mo), titanium (Ti), tungsten (W), and copper (Cu). The material can be formed as a single layer or multiple layers.

Meanwhile, although not shown in the drawing, a protective film (not shown) covering the thin film transistor (TFT) may be disposed to protect the thin film transistor (TFT) of this structure. The protective film may be formed of an inorganic material such as silicon oxide, silicon nitride, or silicon oxynitride.

Meanwhile, the first insulating layer 170 may be disposed on the substrate 100. In this case, the first insulating layer 170 may be a planarization film or a protective film. This first insulating layer 170 serves to substantially flatten the upper surface of the thin film transistor (TFT) when an organic light emitting device is disposed on top of the thin film transistor (TFT) and to protect the thin film transistor (TFT) and various devices. . This first insulating layer 170 may be formed of, for example, an acrylic organic material or BCB (Benzocyclobutene). At this time, as shown in FIG. 10, the buffer layer 110, the gate insulating film 130, the interlayer insulating film 150, and the first insulating layer 170 may be formed on the entire surface of the substrate 100.

Meanwhile, a second insulating layer 180 may be disposed on the thin film transistor (TFT). In this case, the second insulating layer 180 may be a pixel defining layer. The second insulating layer 180 may be located on the above-described first insulating layer 170 and may have an opening. This second insulating layer 180 serves to define a pixel area on the substrate 100.

This second insulating layer 180 may be provided as an organic insulating film, for example. Such organic insulating films include acrylic polymers such as polymethyl methacrylate (PMMA), polystyrene (PS), polymer derivatives with phenol groups, imide polymers, aryl ether polymers, amide polymers, fluorine polymers, and p-xylene polymers. It may include polymers, vinyl alcohol-based polymers, and mixtures thereof.

Meanwhile, an organic light emitting device 200 may be disposed on the second insulating layer 180. The organic light emitting device 200 may include a pixel electrode 210, an intermediate layer 220 including an emission layer (EML), and a counter electrode 230.

The pixel electrode 210 may be formed as a (semi-)transparent electrode or a reflective electrode. When formed as a (semi) transparent electrode, it may be formed of, for example, ITO, IZO, ZnO, In ₂ O ₃ , IGO or AZO. When formed as a reflective electrode, a reflective film formed of Ag, Mg, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr and their compounds, ITO, IZO, ZnO, In ₂ O ₃ , IGO or AZO It may have a layer formed of. Of course, the present invention is not limited to this, and can be formed of various materials, and its structure can also be modified in various ways, such as single-layer or multi-layer.

The intermediate layer 220 may be disposed in each pixel area defined by the second insulating layer 180. This intermediate layer 220 includes an emission layer (EML) that emits light by electrical signals. In addition to the emission layer (EML), the hole injection layer (HIL) is disposed between the emission layer (EML) and the pixel electrode 210. : Hole Injection Layer (HTL), Hole Transport Layer (HTL), Electron Transport Layer (ETL), and Electron Injection Layer (EIL) disposed between the light emitting layer (EML) and the counter electrode 230. etc. may be formed by stacking them in a single or composite structure. Of course, the middle layer 220 is not necessarily limited to this, and may have various structures.

The counter electrode 230, which covers the intermediate layer 220 including the light emitting layer (EML) and faces the pixel electrode 210, may be disposed over the entire surface of the substrate 100. The counter electrode 230 may be formed as a (semi-)transparent electrode or a reflective electrode.

When the counter electrode 230 is formed as a (semi-) transparent electrode, a layer formed of metals with a small work function, such as Li, Ca, LiF/Ca, LiF/Al, Al, Ag, Mg, and their compounds, and ITO and IZO. , ZnO, In ₂ O ₃ , etc. may have a (semi) transparent conductive layer. When the counter electrode 230 is formed as a reflective electrode, it may have a layer formed of Li, Ca, LiF/Ca, LiF/Al, Al, Ag, Mg, and compounds thereof. Of course, the composition and material of the counter electrode 230 are not limited to this, and various modifications are possible.

Meanwhile, referring to FIG. 3, an encapsulation layer 300 may be disposed on the substrate 100 to cover the organic light emitting device 200. Although not shown in FIG. 3, the encapsulation layer 300 may have a multilayer structure in which one or more inorganic films (not shown) and organic films (not shown) are stacked. The reason for forming the encapsulation layer 300 in a multi-layer structure is that when the encapsulation layer 300 is formed with only an organic film or an inorganic film, oxygen or moisture, etc., penetrates from the outside through the fine passages formed inside the film, and the display unit is likely to be damaged. Because you can. The pixel units can be blocked and sealed from the outside by this encapsulation layer 300.

Organic materials included in the organic film include, for example, one or more materials selected from the group consisting of acrylic resin, methacrylic resin, polyisoprene, vinyl resin, epoxy resin, urethane resin, cellulose resin, and perylene resin. may include.

Additionally, inorganic materials included in the inorganic film include, for example, silicon nitride, aluminum nitride, zirconium nitride, titanium nitride, hafnium nitride, tantalum nitride, silicon oxide, aluminum oxide, titanium oxide, tin oxide, cerium oxide, and silicon oxynitride ( It may contain one or more materials selected from the group consisting of (SiON).

FIGS. 4A to 4C are cross-sectional views taken along line VI-VI in FIG. 2. 4A to 4C illustrate embodiments of the structure of the penetrating portion 400.

Referring to FIGS. 4A to 4C , a penetrating portion 400 may be disposed in the spaced area BA. 4A to 4C show a cross-section of the first penetration part 410 formed in the first spacing area BA1, but the second penetration part 420 formed in the second spacing area BA2 is also the first penetration part ( 410) may have the same structure.

Referring to FIG. 4A , the penetrating portion 400 is formed to penetrate the substrate 100 and has an inner surface 400a that penetrates the substrate 100 . The inner surface 400a refers to a cross section formed through the substrate 100 and one or more material layers disposed on the substrate 100. In one embodiment, the inner surface 400a of the penetrating portion 400 may be formed substantially perpendicular to the substrate 100.

Meanwhile, an encapsulation layer 300 in which organic and inorganic films are alternately stacked may be disposed on the organic light emitting device. The encapsulation layer 300 may be disposed to cover the inner surface 400a of the penetration portion 400. . If the encapsulation layer 300 is not arranged to cover the inner surface 400a of the penetrating part 400, one or more material layers whose cross-section is exposed due to the inner surface 400a of the penetrating part 400 are exposed to moisture or impurities. This may flow in and damage various elements. Therefore, the reliability of the display device according to an embodiment of the present invention can be improved only when the encapsulation layer 300 is sealed to cover the inner surface 400a of the penetrating portion 400.

Referring to FIG. 4B, the inner surface 400a of the penetrating portion 400 may be formed to have an inclination. That is, the inner surface 400a of the penetrating part 400 may be an inclined surface. The inner surface 400a of the penetrating portion 400 may have a shape that narrows in width from the counter electrode toward the substrate 100. That is, the inner surface 400a of the penetrating portion 400 may be V-shaped with the substrate 100 side open. The inner surface 400a of the penetrating portion 400 may be inclined at an acute angle with respect to the substrate 100 .

That the inner surface 400a of the penetrating portion 400 has an inclination means that the cross section formed by penetrating one or more material layers disposed on the substrate 100 has an inclination. To form such an artificial slope, a half-tone mask or slit mask can be used in the process of patterning the material layer. However, the manufacturing method for forming a through hole having an inclined surface on the inner surface 400a is not limited to a specific method. Through this, when forming the encapsulation layer 300, it can be very easy for the encapsulation layer 300 to cover the inner surface 400a of the through hole.

Referring to FIG. 4C, the penetrating portion 400 is formed to penetrate the substrate 100 and has an inner surface 400a on the inner side that penetrates the substrate 100. The inner surface 400a refers to a cross section formed through the substrate 100 and one or more material layers 190 disposed on the substrate 100. One or more material layers 190 may include, for example, a buffer layer 110, a gate sealing layer 130, an interlayer insulating layer 150, a first insulating layer 170, and a second insulating layer ( 180). Accordingly, the inner surface 400a of the penetrating part 400 may include end surfaces 110a, 130a, 150a, 170a, and 180a, where each material layer corresponds to the inner surface 400a of the penetrating part 400. there is.

Meanwhile, in one embodiment of the present invention, the inner surface 400a of the penetrating portion 400 may be formed in a step shape. This means that the end surfaces 110a, 130a, 150a, 170a, and 180a of the material layers 190 are each formed to have steps. The inner surface 400a of the penetrating portion 400 may be formed to become narrower as it moves from the counter electrode toward the substrate 100. That is, in FIG. 4C, one end surface (110a, 130a, 150a) is formed to protrude most toward the through portion 400, and other end surfaces (170a, 180a) may be stacked on top to have a step. Of course, the end surface 100a of the substrate 100 (100) is formed to have the same surface as one of the end surfaces 110a, 130a, and 150a, or is formed to protrude more than one of the end surfaces 110a, 130a, and 150a. It can be.

In FIG. 4C, the end surface 110a of the buffer layer 110, the end surface 130a of the gate insulating film 130, and the end surface 150a of the interlayer insulating film 150 are formed to have the same surface. This is in the process of forming a contact hole so that the semiconductor layer 120, the source electrode 160, and the drain electrode 162 are electrically connected during the manufacturing process, the buffer layer 110, the gate insulating film 130, and the interlayer insulating film 150. It can be understood that this is because patterning occurs simultaneously. However, it is not limited to this, and in some cases, the end surfaces 110a, 130a, and 150a may each be formed to have a step.

Meanwhile, the encapsulation layer 300 may be disposed over the entire surface of the substrate 100 to seal the organic light emitting device and cover the end surfaces 110a, 130a, 150a, 170a, and 180a. Through this structure of the inner surface of the through hole, when forming the encapsulating layer 300, it can be very easy for the encapsulating layer 300 to cover the inner surface 400a of the through hole. Accordingly, the encapsulation layer 300 is sealed to cover the inner surface 400a of the penetrating portion 400, thereby improving the reliability of the display device.

Figure 5 is an enlarged plan view schematically showing part A of Figure 1.

Referring to FIG. 5, the display device 1 includes a substrate 100 and one or more wires (SL1 to SL3, V1 to V3, and D1 to D3).

A display area (DA) and a non-display area (NDA) are defined on the substrate 100. One or more pixels PU and a penetration portion 400 are formed in the display area DA.

The substrate 100 is divided into a display area (DA) and a non-display area (NDA). Since the locations of the display area DA and the non-display area NDA are the same as those in the above-described embodiment, detailed descriptions thereof will be omitted.

One or more pixels PU and a penetration portion 400 are formed in the display area DA. The pixel PU includes one or more display elements (not shown) that implement visible light, which is the same as described in the above-described embodiment, and the structure described in FIG. 3 can also be applied.

The penetrating portion 400 is formed in the substrate 100 . Since the penetrating portion 400 and the spaced area BA are the same as described in the above-described embodiment, detailed description thereof will be omitted.

One or more wires (SL1 to SL3, V1 to V3, and D1 to D3) are electrically connected to the pixel PU and are formed to be spaced apart from the through portion 400 without overlapping with it.

One or more wires (SL1 to SL3, V1 to V3, and D1 to D3) may include one or more first wires (SL1 to SL3).

One or more first wires SL1 to SL3 are electrically connected to the pixel PU. As an optional embodiment, the first wire SL1 may be electrically connected to each of a plurality of pixels PU in a row arranged in the first direction (X-axis direction in FIG. 5). The first wiring SL1 is formed to have at least a curve. That is, the first wiring SL1 has an area extending in the first direction and an area curved in a second direction (Y-axis direction in FIG. 9) that intersects the first direction along the periphery of the first through portion 410. , and the area curved in the second direction (Y-axis direction in FIG. 9) may mean an area protruding in the second direction. Through this, the first wiring SL1 is spaced apart from the first through portion 410 and the second through portion 420.

As an optional embodiment, the first wiring SL2 is disposed adjacent to the first wiring SL1, that is, in a second direction (Y-axis direction in FIG. 9) that intersects the first direction, and is arranged in the first direction (FIG. It may be electrically connected to each of a plurality of pixels (PU) in a row arranged in the X-axis direction of 9.

The first wiring SL2 is formed to have at least a curve. That is, the first wiring SL2 has an area extending in the first direction, has an area curved in the second direction along the periphery of the first through portion 410, and extends in the second direction (Y-axis direction in FIG. 9). The curved area may mean an area protruding in the second direction. Through this, the first wiring SL2 is spaced apart from the first through portion 410 and the second through portion 420.

As an optional embodiment, the first wiring SL2 may have a symmetrical shape with the first wiring SL1, and specifically, the first wiring SL2 and the first wiring SL1 are formed in the second through portion 420. It can have a symmetrical form based on .

The first wiring SL3 has the same shape as the first wiring SL1. The first wiring SL3 may be electrically connected to each of a plurality of pixels PU in a row arranged in the first direction (X-axis direction in FIG. 9). The first wiring SL3 is formed to have at least a curve. That is, the first wiring SL3 has an area extending in the first direction and an area curved in a second direction (Y-axis direction in FIG. 9) that intersects the first direction along the periphery of the first through portion 410. , and the area curved in the second direction (Y-axis direction in FIG. 9) may mean an area protruding in the second direction. Through this, the first wiring SL3 is spaced apart from the first through portion 410 and the second through portion 420.

Although not shown, a first wiring (not shown) of the same shape as the first wiring (SL2) may be formed below the first wiring (SL3). Additionally, the arrangement of the first wiring SL1, SL2, and SL3 may be repeated.

The first wiring SL1, SL2, and SL3 may transmit various signals to the pixel PU. As an optional embodiment, the first wiring SL1, SL2, and SL3 may transmit a scan signal to the pixel PU. Also as an example, the first wires SL1, SL2, and SL3 may be electrically connected to the gate electrode 105 of the thin film transistor shown in FIG. 7.

One or more wires (SL1 to SL3, V1 to V3, and D1 to D3) may include one or more second wires (V1 to V3). One or more second wirings V1 to V3 are electrically connected to the pixel PU. As an optional embodiment, the second wiring V1 may be electrically connected to each of a plurality of pixels PU in a row arranged in the second direction (Y-axis direction in FIG. 5).

The second wiring V1 is formed to have at least a curve. That is, the second wiring V1 has an area extending in the second direction, has an area curved in the first direction (X-axis direction in FIG. 9) along the periphery of the second through portion 420, and extends in the first direction. The curved area may mean an area protruding in the first direction. Through this, the second wiring V1 is spaced apart from the first through portion 410 and the second through portion 420.

As an optional embodiment, the second wiring V2 is disposed adjacent to the second wiring V1 in a lateral direction (for example, to the right), that is, in a first direction (x-axis direction in FIG. 5) that intersects the second direction. and may be electrically connected to each of a plurality of pixels PU in a row arranged in the second direction.

The second wiring V2 is formed to have at least a curve. That is, the second wiring V2 has a region extending in the second direction and a region curved in the first direction along the periphery of the second penetrating portion 420, and the region curved in the first direction refers to the first direction. It can mean a protruding area. Through this, the second wiring V2 is spaced apart from the first through portion 410 and the second through portion 420.

As an optional embodiment, the second wiring (V2) may have a symmetrical shape with the second wiring (V1), and specifically, the second wiring (V2) and the second wiring (V1) are formed in the first through portion 410. It can have a symmetrical form based on .

The second wiring V3 has the same shape as the second wiring V1. The second wiring V3 may be electrically connected to each of the plurality of pixels PU in a row arranged in the second direction. The second wiring V3 is formed to have at least a curve. That is, the second wiring V3 has a region extending in the second direction and a region curved in the first direction along the periphery of the second through portion 420, and the region curved in the first direction refers to the first direction. It can mean a protruding area. Through this, the second wiring V3 is spaced apart from the first through portion 410 and the second through portion 420.

Although not shown, a second wiring (not shown) of the same shape as the second wiring (V2) may be formed on the right side of the second wiring (V3). Additionally, the arrangement of the second wirings V1, V2, and V3 may be repeated.

The second wiring (V1, V2, V3) can transmit various signals to the pixel (PU). As an optional embodiment, the second wiring (V1, V2, V3) can transmit a signal for supplying power to the pixel (PU). You can. Also as an example, the second wirings V1, V2, and V3 may be electrically connected to the first electrode 131 or the second electrode 132 shown in FIG. 6 or 7.

One or more wires (SL1 to SL3, V1 to V3, and D1 to D3) may include one or more third wires (D1 to D3).

One or more third wires D1 to D3 are electrically connected to the pixel PU. As an optional embodiment, the third wiring D1 may be electrically connected to each of a plurality of pixels PU in a row arranged in the second direction (Y-axis direction in FIG. 5).

The third wiring D1 is formed to have at least a curve. That is, the third wiring D1 has an area extending in the second direction, has an area curved in the first direction (X-axis direction in FIG. 9) along the periphery of the second through portion 420, and extends in the first direction. The curved area may mean an area protruding in the first direction. Through this, the third wiring D1 is spaced apart from the first through portion 410 and the second through portion 420.

As an optional embodiment, the third wiring (D1) may be spaced apart from the second wiring (V1 to V3). In addition, a second penetrating part 420 corresponding to the area bent in the first direction of the third wiring D1 and a second penetrating part corresponding to the area bent in the first direction of the second wirings V1 to V3 (420) may be different from each other, for example, may be adjacent to each other.

As an optional embodiment, the third wire D2 is arranged adjacent to the third wire D1 in a lateral direction (for example, to the right), that is, in a first direction (x-axis direction in FIG. 9) crossing the second direction. and may be electrically connected to each of a plurality of pixels PU in a row arranged in the second direction.

The third wiring D2 is formed to have at least a curve. That is, the third wiring D2 has a region extending in the second direction and a region curved in the first direction along the periphery of the second penetrating portion 420, and the region curved in the first direction refers to the first direction. It can mean a protruding area. Through this, the third wiring D2 is spaced apart from the first through portion 410 and the second through portion 420.

As an optional embodiment, the third wiring D2 may have a symmetrical shape with the third wiring D1, and specifically, the third wiring D2 and the third wiring D1 are connected to the first through portion 410. It can have a symmetrical form based on .

As an optional embodiment, the third wire D2 may be spaced apart from the second wires V1 to V3. In addition, a second penetrating part 420 corresponding to the area bent in the first direction of the third wiring D2 and a second penetrating part corresponding to the area bent in the first direction of the second wirings V1 to V3 (420) may be different from each other, for example, may be adjacent to each other.

The third wiring D3 has the same shape as the third wiring D1. The third wiring D3 may be electrically connected to each of the plurality of pixels PU in a row arranged in the second direction. The third wiring D3 is formed to have at least a curve. That is, the third wiring D3 has a region extending in the second direction and a region curved in the first direction along the periphery of the second penetrating portion 420, and the region curved in the first direction refers to the first direction. It can mean a protruding area. Through this, the third wiring D3 is spaced apart from the first through portion 410 and the second through portion 420.

As an optional embodiment, the third wire D3 may be spaced apart from the second wires V1 to V3. In addition, a second penetrating part 420 corresponding to the area bent in the first direction of the third wiring D3 and a second penetrating part corresponding to the area bent in the first direction of the second wirings V1 to V3 (420) may be different from each other, for example, may be adjacent to each other.

Although not shown, a third wiring (not shown) of the same shape as the third wiring (D2) may be formed on the right side of the third wiring (D3). Additionally, the arrangement of the third wirings D1, D2, and D3 may be repeated.

The third wires D1, D2, and D3 may transmit various signals to the pixel PU. As an optional embodiment, the third wires D1, D2, and D3 may transmit data signals to the pixel PU. Also as an example, the third wires D1, D2, and D3 may be electrically connected to the source electrode 107 or the drain electrode 108 shown in FIG. 7.

Although not shown, any one of FIGS. 3, 4, and 5 can be selectively applied to the display device 1 of this embodiment.

In the display device 1 of this embodiment, a penetrating portion 400 is formed in the substrate 100. Through this, the flexibility of the substrate 100 can be improved and the weight of the substrate 100 can be reduced. Additionally, when the display device 1 is applied as a bending display device, a flexible display device, or a stretchable display device, flexibility can be improved and abnormal deformation can be reduced.

As an optional embodiment, the penetrating part 400 has a first penetrating part 410 extending in one direction, and a second penetrating part 420 extending in a direction intersecting the one direction. Therefore, the flexibility of the substrate 100 can be secured even when the substrate 100 is deformed by bending, bending, rolling, etc. in various directions, abnormal deformation of the substrate 100 can be prevented, and durability can be improved. Through this, user convenience can be improved when using the display device 1, and in particular, the display device 1 can be easily applied to a wearable device.

In addition, as an optional embodiment, when forming the first through portion 410 of the through portion 400, it is elongated to correspond to two pixels (PU) adjacent to each other in one direction and another two pixels (PU) adjacent to the first through portion (PU) in one direction. It can be formed to improve the durability of the display device 1 by mitigating changes in deformation characteristics at the boundary between pixels PU and the display device 1 that requires flexibility, for example. For example, it can be easily applied to a bending display device, a flexible display device, or a stretchable display device.

In addition, as an optional embodiment, when forming the second through part 420 of the through part 400, it is formed in a direction that intersects the first through part 410, and two pixels PU and another two adjacent thereto are formed. It can be formed in an elongated form to correspond to the pixel PU, thereby improving the durability of the display device 1 by mitigating changes in deformation characteristics at the boundary between the pixels PU, and It can be easily applied to a display device 1 that requires flexibility, for example, a bending display device, a flexible display device, or a stretchable display device.

In addition, the display device 1 of this embodiment includes one or more wires (SL1 to SL3, V1 to V3, D1 to D3) electrically connected to the pixel (PU), and wires (SL1 to SL3, V1 to V3, D1 to D3) are formed to be spaced apart from the penetrating portion 400 without overlapping with it. Through this, the effects of improving flexibility and durability of the substrate 100 through the penetrating portion 400 are not reduced. Additionally, one or more wires (SL1 to SL3, V1 to V3, and D1 to D3) overlap the penetration portion 400 to prevent them from being peeled off, contaminated by external gas such as oxygen, or deteriorated by moisture.

Each type of one or more wires (SL1 to SL3, V1 to V3, D1 to D3), that is, wires (SL1 to SL3), extend in one direction, have a curved shape, and can be repeated at a certain cycle, Non-uniformity for each pixel (PU) due to wiring (SL1 to SL3) can be reduced or prevented.

In addition, the wiring (V1 to V3) extends in one direction, has a curved shape, and can be repeated at a certain cycle, thereby reducing or preventing unevenness for each pixel (PU) due to the wiring (V1 to V3). .

In addition, the wirings D1 to D3 extend in one direction, have a curved shape, and can be repeated at regular intervals, thereby reducing or preventing unevenness for each pixel PU due to the wirings D1 to D3. .

In particular, the wiring (V1 to V3) and the wiring (D1 to D3) extending in the same direction and electrically connected to the pixels (PU) arranged in the same direction are formed so as not to overlap each other, so that interference between them can be minimized. In addition, the curved areas of the wires V1 to V3 and D1 to D3 correspond to different second penetrating portions 420, so that the curved areas of the wires V1 to V3 and D1 to D3 It is possible to prevent a decrease in electrical characteristics in the pixel (PU) due to interference.

FIG. 6 is an enlarged plan view schematically showing part A of FIG. 1 , and FIG. 7 is an enlarged plan view schematically showing part K of FIG. 6 .

Referring to FIGS. 6 and 7 , the display device 1 includes a substrate 100 and one or more wires (SL1 to SL3, V1 to V3, and D1 to D3).

A display area (DA) and a non-display area (NDA) are defined on the substrate 100. One or more pixels PU1, PU2, and PU3 and a through portion 400 are formed in the display area DA. Each of the pixels PU1, PU2, and PU3 may include a plurality of subpixels SP1, SP2, and SP3.

The substrate 100 is divided into a display area (DA) and a non-display area (NDA). The penetrating portion 400 is formed in the substrate 100 . Since the substrate 100 and the penetrating portion 400 are the same as described in the above-described embodiment, detailed description will be omitted.

Each of the pixels (PU1, PU2, and PU3) in this embodiment includes one or more subpixels (SP1, SP2, and SP3). As a specific example, the pixel PU1 includes a plurality of subpixels SP1, SP2, and SP3.

Although three subpixels (SP1, SP2, and SP3) are shown in FIG. 6, this embodiment is not limited to this and one pixel (PU1) may be provided with two, four or more subpixels. As an optional embodiment, the plurality of subpixels SP1, SP2, and SP3 provided in one pixel PU1 may each implement, for example, emit different colors of visible light. As a specific example, the plurality of subpixels (SP1, SP2, and SP3) may respectively implement visible light in red, green, and blue colors.

A plurality of subpixels (SP1, SP2, and SP3) provided in one pixel (PU1) may be arranged in order in one direction, for example, in the X-axis direction with respect to FIG. 6. In addition, another pixel (PU2) adjacent to one pixel (PU1) includes a plurality of sub-pixels (SP1, SP2, SP3), and the plurality of sub-pixels (SP1, SP2, SP3) have a direction intersecting the one direction, For example, they may be arranged in order in the Y-axis direction based on FIG. 6.

In addition, another pixel (PU3) adjacent to one pixel (PU2) includes a plurality of sub-pixels (SP1, SP2, SP3), and the plurality of sub-pixels (SP1, SP2, SP3) are oriented in one direction, for example. Based on FIG. 6, they may be arranged in order in the X-axis direction. As an optional embodiment, the plurality of subpixels (SP1, SP2, SP3) provided in the pixels (PU1, PU2, PU3) are all arranged in one direction (X-axis direction) or are all arranged in one direction (Y-axis direction) intersecting therewith. can be arranged.

One or more wires (SL1 to SL3, V1 to V3, D1 to D3) may include one or more first wires (SL1 to SL3), second wires (V1 to V3), and third wires (D1 to D3). . One or more first wires (SL1 to SL3), second wires (V1 to V3), and third wires (D1 to D3) are electrically connected to the pixels (PU1, PU2, and PU3). The arrangement of the first wiring (SL1 to SL3), the second wiring (V1 to V3), and the third wiring (D1 to D3) is the same as the above-described embodiment, and detailed description will be omitted.

The description will be made with reference to FIG. 7 . Figure 7 is an enlarged view of K in Figure 6.

Referring to FIG. 7 , the first wire SL1 is electrically connected to the subpixels SP1, SP2, and SP3 of the pixel PU1. The first wiring SL1 may have various forms. As an optional embodiment, the first wire SL1 includes a plurality of connection lines SL1c spaced apart from each other to be connected to each subpixel SP1, SP2, and SP3, and a common line SL1b commonly connected to the plurality of connection lines SL1c. ) and a main body line (SP1a) connected to the common line (SL1b) and formed to correspond to a side of one of the subpixels (SP1, SP2, SP3), for example, the subpixel (SP1).

The second wiring V1 is electrically connected to the subpixels SP1, SP2, and SP3 of the pixel PU1. The second wiring V1 may have various forms. As an optional embodiment, the second wiring (V1) includes a plurality of connection lines (V1c) spaced apart from each other to be connected to each subpixel (SP1, SP2, and SP3), and a common line (V1b) commonly connected to the plurality of connection lines (V1c). ) and a main body line (V1a) connected to the common line (V1b) and formed to correspond to a side of one of the subpixels (SP1, SP2, SP3), for example, the subpixel (SP1).

The third wire D1 is electrically connected to the subpixels SP1, SP2, and SP3 of the pixel PU1. The third wiring D1 may have various forms. As an optional embodiment, the third wire D1 includes a plurality of connection lines D1c spaced apart from each other to be connected to each subpixel SP1, SP2, and SP3, and a common line D1b commonly connected to the plurality of connection lines D1c. ) and a main line (D1a) connected to the common line (D1b) and formed to correspond to a side of one of the subpixels (SP1, SP2, SP3), for example, the subpixel (SP3).

In the display device 1 of this embodiment, a penetrating portion 400 is formed in the substrate 100. Through this, the flexibility of the substrate 100 can be improved and the weight of the substrate 100 can be reduced.

In addition, it is formed in the spaced area BA between the pixels PU1, PU2, and PU3 among the areas of the substrate 100, causing deformation of the substrate 100, that is, bending, bending, rolling, etc. of the substrate 100. Deformation of the substrate 100 around the pixels PU1, PU2, and PU3 can be facilitated, and stress generation during deformation can be easily reduced or blocked. That is, when the display device 1 is applied as a bending display device, a flexible display device, or a stretchable display device, flexibility can be improved and abnormal deformation can be reduced.

As an optional embodiment, the penetrating part 400 has a first penetrating part 410 extending in one direction, and a second penetrating part 420 extending in a direction intersecting the one direction. Therefore, the flexibility of the substrate 100 can be secured even when the substrate 100 is deformed by bending, bending, rolling, etc. in various directions, abnormal deformation of the substrate 100 can be prevented, and durability can be improved. Through this, user convenience can be improved when using the display device 1, and in particular, the display device 1 can be easily applied to a wearable device.

In addition, as an optional embodiment, the second penetration part 420 is disposed between two adjacent first penetration parts 410 among the plurality of first penetration parts 410, so that the first penetration part 410 moves in one direction. It is possible to prevent cracks that may occur in the longitudinal direction of the first penetration portion 410 of the substrate 100 due to extension.

In addition, the first penetrating part 410 is disposed between two second penetrating parts 420 that are adjacent to each other among the plurality of second penetrating parts 420, so that the second penetrating part 420 is extended in one direction. It is possible to prevent cracks that may occur in the longitudinal direction of the second penetration portion 420 of the substrate 100.

In addition, the pixels (PU1, PU2, PU3) of this embodiment include a plurality of sub-pixels (SP1, SP2, SP3), and the plurality of sub-pixels (SP1, SP2, SP3) are arranged in one direction, and the pixel (PU1) The direction in which the subpixels (SP1, SP2, SP3) of ) are arranged and the direction in which the adjacent subpixels (SP1, SP2, SP3) are arranged intersect. Through this, the subpixels SP1, SP2, and SP3 can be arranged to correspond to the arrangement direction of the first through portion 410 and the second through portion 420. Through this, even if the arrangement directions of the first through portion 410 and the second through portion 420 are different, the non-uniformity of the visual impact on the pixels PU1, PU2, and PU3 is minimized to improve the image quality characteristics of the display device 1. can be improved

In addition, the display device 1 of this embodiment includes one or more wires (SL1 to SL3, V1 to V3, and D1 to D3), and the wires (SL1 to SL3, V1 to V3, and D1 to D3) are connected to the through portion 400. ) and is formed to be spaced apart rather than overlapping. Through this, the effects of improving flexibility and durability of the substrate 100 through the penetrating portion 400 are not reduced. Additionally, one or more wires (SL1 to SL3, V1 to V3, and D1 to D3) overlap the penetration portion 400 to prevent them from being peeled off, contaminated by external gas such as oxygen, or deteriorated by moisture.

Each type of one or more wires (SL1 to SL3, V1 to V3, D1 to D3), that is, wires (SL1 to SL3), extend in one direction, have a curved shape, and can be repeated at a certain cycle, The wiring SL1 to SL3 can reduce or prevent unevenness of the display device 1. In addition, the wiring (V1 to V3) and the wiring (D1 to D3) can also reduce or prevent unevenness.

In particular, the interconnections V1 to V3 and D1 to D3 extending in the same direction can be formed so as not to overlap each other, thereby minimizing interference between them. In addition, the curved areas of the wires V1 to V3 and D1 to D3 correspond to different second penetrating portions 420, so that the curved areas of the wires V1 to V3 and D1 to D3 It is possible to prevent a decrease in the electrical characteristics of the display device 1 due to interference.

In addition, the pixels PU1, PU2, and PU3 each have subpixels SP1, SP2, and SP3 arranged in a predetermined direction, and each of the wiring SL1 to SL3, V1 to V3, and D1 to D3 is a subpixel. It is connected to (SP1, SP2, SP3) and is curved to be spaced apart from the through portion 400. For this purpose, the wires include a plurality of connection lines, a common line, and a main body line connected to a plurality of subpixels (SP1, SP2, SP3). Therefore, the wirings SL1 to SL3, V1 to V3, and D1 to D3 can be easily electrically connected to the plurality of subpixels SP1, SP2, and SP3 without overlapping the through portion 400.

So far, only the display device has been mainly described, but the present invention is not limited thereto. For example, a method of manufacturing such a display device may also be said to fall within the scope of the present invention.

8 to 12 are cross-sectional views schematically showing a manufacturing process for manufacturing a display device according to an embodiment of the present invention.

Referring to FIG. 8, a pixel area (PA) where a plurality of pixel units (PUs) are located and a separation area (BA) formed between two adjacent pixel units (PUs) among the plurality of pixel units (PUs). A step of preparing the substrate 100 may be performed. The substrate 100 may include various materials. Specifically, the substrate 100 may be formed of glass, metal, organic material, or other materials. As an optional embodiment, the substrate 100 may be formed of a flexible material with flexibility.

A step of forming a buffer layer 110, a gate insulating film 130, and an interlayer insulating film 150 may be performed on the substrate 100. Additionally, a step of forming a semiconductor layer 120 and a gate electrode 140 to form a thin film transistor (TFT) may be performed on the substrate 100. After stacking the interlayer insulating film 150 on the gate electrode 140, a contact hole (CNT) may be formed so that the source electrode 160 and the drain electrode 162 are electrically connected to the semiconductor layer 120.

At this time, in the process of forming the contact hole H1, the first through hole 401 may be simultaneously formed in the separation area BA. Through this, the process of forming the first through hole 401 in the separation area (BA) can be performed without adding a separate mask, thereby reducing manufacturing costs.

Through the first through hole 401, the end surface 110a of the buffer layer 110, the end surface 130a of the gate insulating film 130, and the end surface 150a of the interlayer insulating film 150 may be exposed. The end surfaces 110a, 130a, and 150a may be the first end surface 160a of the first through hole 401. These first end surfaces 160a may be formed to have the same surface. This can be understood as being because the first through hole 401 is formed in the process of forming the contact hole H1. In another embodiment, the first end surface 160a may be formed in a stepped form so that each of the first end surfaces 160a has different surfaces.

Referring to FIG. 9, a source electrode 160 and a drain electrode 162 that are electrically connected to the semiconductor layer 120 through the contact hole (H1) can be formed on the gate electrode 140. A first insulating layer 170 may be stacked on the source electrode 160 and the drain electrode 162. A via hole H2 may be formed in the first insulating layer 170 to electrically connect the pixel electrode 210 to one of the source electrode 160 and the drain electrode 162.

At this time, in the process of forming the via hole H2, the second penetrating portion 420 may be simultaneously formed in the separation area BA. Through this, the process of forming the second penetration portion 420 in the separation area BA can be performed without adding a separate mask, thereby reducing manufacturing costs.

The second end surface 170a may be exposed through the second penetration portion 420. This can be understood to be because the second penetration portion 420 is formed in the process of forming the via hole H2. At this time, the width of the second through portion 420 may be formed to be larger than the width of the first through hole 401.

Referring to FIG. 10 , the pixel electrode 210 may be formed on the first insulating layer 170 by patterning each pixel. The pixel electrode 210 may be electrically connected to either the source electrode 160 or the drain electrode 162 of the thin film transistor (TFT) through the via hole H2 formed in the first insulating layer 170.

After forming the pixel electrode 210, a step may be taken to form the second insulating layer 180 to expose the central portion of the pixel electrode 210 and cover the edges of the pixel electrode 210. The second insulating layer 180 may be understood as a pixel defining layer.

In the process of forming the opening H3 through which the second insulating layer 180 exposes the central portion of the pixel electrode 210, the third through-hole 403 may be simultaneously formed in the separation area BA. Through this, the process of forming the third through hole 403 in the separation area (BA) can be performed without adding a separate mask, thereby reducing manufacturing costs.

The third end surface 180a may be exposed through the third through hole 403. This can be understood to be because the third through-hole 403 is formed in the process of forming the opening H3. At this time, the width of the third through hole 403 may be formed to be larger than the width of the second through hole 402.

That is, the first through-hole 401 may be formed to have the smallest width, the second through-hole 420 may be formed thereon, and the third through-hole 403 may be formed to have the largest width. Accordingly, the first end surface 160a, the second end surface 170a, and the third end surface 180a may be formed to have a stepped structure with steps. The first end surface 160a may be formed to protrude more than the second end surface 170a, and the second end surface 170a may be formed to protrude more than the third end surface 180a. Figure 9 shows a structure in which the first end surface 160a, the second end surface 170a, and the third end surface 180a are formed to have steps. However, it is not limited to this, and the end surface of the through hole may have one of the structures shown in FIGS. 4A to 4C described above.

Referring to FIG. 11, an intermediate layer 220 including a light-emitting layer may be formed on the pixel electrode 210 exposed by the second insulating layer 180. Thereafter, a step may be taken to form the counter electrode 230 facing the pixel electrode 210 on the second insulating layer 180 to cover the intermediate layer 220. The counter electrode 230 may be formed on the entire surface of the substrate 100. Therefore, although not shown in the drawing, the counter electrode 230 may also be formed on the first end surface 160a, the second end surface 170a, and the third end surface 180a.

Thereafter, a fourth through hole 404 having the same or smaller size as the first through hole 401 may be formed in the substrate 100. The fourth through hole 404 may be formed to penetrate the substrate 100 . This fourth through hole 404 can be formed using laser cutting, and a portion of the substrate 100 can be removed through fine pattern processing using, for example, a femto laser.

Referring to FIG. 12 , a portion of the substrate 100 corresponding to the first through hole 401 may be removed to form a fourth through hole 404. Accordingly, the through portion 400 formed in the spaced area BA may be formed by overlapping the first to fourth through holes 401 to 404. Additionally, the fourth end surface 100a may be exposed by the fourth through hole 404. The first to fourth end surfaces 160a to 100a may be understood as the inner surface 400a of the penetrating portion 400.

The inner surface 400a of the penetrating portion 400 may be formed to have steps in a step shape, as shown in FIG. 12, or may be formed to have an inclination. Additionally, the inner surface 400a of the penetrating portion 400 may be formed to become narrower as it moves from the counter electrode 230 toward the substrate 100. That is, it can be formed in a V-shape with an open lower part.

In FIG. 12, the counter electrode 230 is shown to be formed on the second insulating layer 180 and not on the first to fourth end surfaces 160a to 100a. However, in some cases, the counter electrode 230 is formed on the second insulating layer 180. Since 230 is formed on the entire surface of the substrate 100 without being patterned, the counter electrode 230 can also be formed on the inner surface 400a of the through portion 400.

A step of forming an encapsulation layer 300 on the counter electrode 230 may be performed. Although not shown in FIG. 12, the encapsulation layer 300 may be formed in a multi-layer structure in which organic films and inorganic films are alternately stacked.

The encapsulation layer 300 is formed to seal the organic light emitting device and covers the inner surface 400a of the penetration portion 400. If the encapsulation layer 300 is not arranged to cover the inner surface 400a of the penetrating part 400, one or more material layers whose cross-section is exposed due to the inner surface 400a of the penetrating part 400 are exposed to moisture or impurities. This may flow in and damage various elements. Therefore, the reliability of the display device according to an embodiment of the present invention can be improved only when the encapsulation layer 300 is sealed to cover the inner surface 400a of the penetrating portion 400.

The present invention has been described with reference to the embodiments shown in the drawings, but these are merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the attached patent claims.

100: substrate
200: Organic light emitting device
300: Encapsulation layer
400: Penetrating part
400a: medial side
410: first penetration portion
420: second penetration portion
BA: standoff area
PU, PU1, PU2, PU3: pixels
SP1, SP2, SP3: Subpixel

Claims (22)

Board;
a plurality of pixels disposed on the substrate, each of which includes a first subpixel, a second subpixel, and a third subpixel;
a penetrating portion located between the plurality of pixels;
a scan line extending in a first direction by bypassing the through portion;
a data line extending in a second direction that bypasses the through portion and intersects the first direction,
The penetrating portion is perpendicular to a direction in which the scan line or the data line extends, and the penetrating portion includes a first penetrating portion having a long side in the second direction and a second penetrating portion having a long side in the first direction,
The first penetration part and the second penetration part are arranged to be spaced apart from each other. According to paragraph 1,
The first direction and the second direction are orthogonal to each other. According to paragraph 1,
The first subpixel, the second subpixel, and the third subpixel each emit different colors. According to paragraph 1,
The first penetration part is located between two pixels arranged adjacent to each other in the first direction, and the second penetration part is located between two pixels arranged adjacent to each other in the second direction. According to paragraph 1,
A display device wherein the first through portion and the second through portion are spaced apart from each other. According to paragraph 1,
Based on one pixel among the plurality of pixels,
A plurality of penetrating portions are provided to surround the pixel,
A display device wherein the pixel is surrounded by four penetrating portions spaced apart from each other. According to clause 6,
Two of the four through parts extend in the first direction, and the remaining two extend in the second direction. According to paragraph 1,
The data line includes a first data line and a second data line adjacent to each other with the first through portion interposed therebetween,
The first data line and the second data line are arranged symmetrically with respect to the first through portion. According to paragraph 1,
The scan line includes a first scan line and a second scan line adjacent to each other with the second penetration part interposed therebetween,
The first scan line and the second scan line are symmetrically arranged with respect to the second through portion. Board;
a plurality of pixels disposed on the substrate, each of which includes a first subpixel, a second subpixel, and a third subpixel; and
A penetrating portion located between the plurality of pixels,
The plurality of pixels include first pixels and second pixels in which the first sub-pixel, the second sub-pixel, and the third sub-pixel have different arrangements,
The first pixel and the second pixel are arranged alternately in a first direction. According to clause 10,
The display device wherein the penetrating portion is located between the first pixel and the second pixel. According to clause 10,
The first pixel and the second pixel are arranged alternately in a second direction intersecting the first direction. According to clause 10,
The first pixel and the second pixel are arranged to be spaced apart from each other at regular intervals. According to clause 13,
A display device wherein the separation distance between the first pixel and the second pixel is greater than the separation distance between each of the first subpixel, the second subpixel, and the third subpixel. According to clause 10,
In the first pixels and the second pixels arranged alternately in the first direction,
A display device wherein distances between subpixels emitting the same color among the first subpixel, the second subpixel, and the third subpixel included in each of the first pixel and the second pixel are the same.
Board;
a first pixel, a second pixel, a third pixel, and a fourth pixel disposed on the substrate, each including a plurality of subpixels; and
and at least one penetrating portion located between the first pixel and the fourth pixel,
The first to fourth pixels are arranged to face each other with the at least one through portion interposed between them,
The plurality of subpixels are provided in a rectangular shape having a short side and a long side that is longer than the short side,
A display device wherein the length of the through portion along the first direction is at least twice the length of a long side of each of the plurality of subpixels. According to clause 15,
Each of the plurality of subpixels is a rectangular shape with a long side extending in a first direction. According to clause 16,
A display device wherein each of the plurality of subpixels is a rectangular shape with rounded corners. According to clause 15,
A display device wherein the plurality of subpixels included in each of the first to fourth pixels are arranged in the same direction. According to clause 15,
A display device, wherein each of the plurality of subpixels is arranged parallel to the adjacent through portion. According to clause 15,
The first to fourth pixels are arranged symmetrically with respect to the through portion. According to clause 20,
The first pixel, the third pixel, the second pixel, and the fourth pixel are each arranged diagonally with respect to the through portion,
The plurality of subpixels included in the first pixel and the third pixel are arranged in the same arrangement,
The plurality of subpixels included in the second pixel and the fourth pixel are arranged in the same arrangement, and the display device. According to clause 21,
A display device, wherein the plurality of subpixels included in the first pixel and the third pixel and the plurality of subpixels included in the second pixel and the fourth pixel are arranged in different arrangements.

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