Display panel and electronic device comprising same

Abstract

The present invention provides a display panel and an electronic device comprising same, the display panel comprising: a substrate including a first display area and a second display area surrounded by the first display area and including a transmissive area and a non-transmissive area; a first sub-pixel circuit group arranged in the first display area; a first light-emitting diode group which is arranged in the first display area and is electrically connected to the first sub-pixel circuit group; a second sub-pixel circuit group arranged in the non-transmissive area; a second light-emitting diode group which is arranged in the non-transmissive area and is electrically connected to the second sub-pixel circuit group; and an auxiliary light-emitting diode which is arranged on the inside of the transmissive area and is electrically connected to the second sub-pixel circuit group.

Description

Display panel and electronic device having the same

[0001] The present invention relates to a display panel and an electronic device having the same.

[0002] Typically, a display panel includes display elements and electronic components for controlling electrical signals applied to the display elements. The electronic components typically include thin film transistors (TFTs), capacitors, and wiring.

[0003] Display panels have recently become increasingly versatile. Furthermore, their thinner and lighter weight are expanding their applications. Research is ongoing to expand the display area of ​​a display panel while simultaneously adding diverse functions. To this end, research is underway to add functions beyond image display to the inner area of ​​the display area.

[0004] Embodiments of the present invention aim to provide a display panel with improved resolution in the component area and an electronic device including the same. However, these tasks are exemplary and do not limit the scope of the present invention.

[0005] According to one aspect of the present invention, a display panel is provided, comprising: a substrate including a first display area, and a second display area including a transparent area and a non-transparent area surrounded by the first display area; a first sub-pixel circuit group disposed in the first display area; a first light-emitting diode group disposed in the first display area and electrically connected to the first sub-pixel circuit group; a second sub-pixel circuit group disposed in the non-transparent area; a second light-emitting diode group disposed in the non-transparent area and electrically connected to the second sub-pixel circuit group; and an auxiliary light-emitting diode disposed inside the transparent area and electrically connected to the second sub-pixel circuit group.

[0006] In one embodiment, the display panel further includes a lower metal layer disposed in the second display area and defining a first opening overlapping the transparent area, wherein the lower metal layer may include a first island portion overlapping the auxiliary light-emitting diode, and a bridge portion extending from the first island portion to the non-transparent area.

[0007] In one embodiment, the first opening has an elliptical shape or a capsule shape in a plane, and at least a portion of the boundary of the first opening may include convex portions.

[0008] In one embodiment, the first opening has a circular shape in a plane, and the auxiliary light-emitting diode can overlap a central area of ​​the first opening.

[0009] In one embodiment, the bridge portion may have an arc shape in a plane.

[0010] In one embodiment, the bridge portion may have a first boundary and a second boundary facing each other, the first boundary may have a first radius of curvature, and the second boundary may have a second radius of curvature greater than the first radius of curvature.

[0011] In one embodiment, the bridge portion is provided in multiple numbers, and the multiple bridge portions may have the same shape on a plane.

[0012] In one embodiment, the first opening is provided in plurality, and includes a first-first opening, a first-second opening, a first-third opening, and a first-fourth opening surrounding one point of the non-transparent area, and each of the bridge portion of the first-first opening, the bridge portion of the first-second opening, the bridge portion of the first-third opening, and the bridge portion of the first-fourth opening may have a shape of one of four arcs that divide an imaginary circle into four equal parts.

[0013] In one embodiment, the second light-emitting diode group and the auxiliary light-emitting diode may be arranged alternately in a first direction and a second direction intersecting the first direction.

[0014] In one embodiment, the first light-emitting diode group may include a first red light-emitting diode and a first blue light-emitting diode arranged in an odd row, and a first green light-emitting diode arranged in an even row, and the second light-emitting diode group may include a second red light-emitting diode and a second blue light-emitting diode arranged in an odd row, and a second green light-emitting diode arranged in an even row.

[0015] In one embodiment, the auxiliary light emitting diodes may be arranged in even rows.

[0016] In one embodiment, the auxiliary light-emitting diode may emit green light.

[0017] In one embodiment, the second green light-emitting diode and the auxiliary light-emitting diode are arranged alternately in the first direction and in the second direction intersecting the first direction, and can be spaced apart from each other at equal intervals.

[0018] In one embodiment, the display panel may further include an encapsulating layer disposed on the first light-emitting diode group, the second light-emitting diode group, and the auxiliary light-emitting diode, a light-shielding layer disposed on the encapsulating layer and defining first filter openings overlapping the second light-emitting diode group and second openings overlapping the transmissive area, first color filters disposed on the light-shielding layer and corresponding to the second light-emitting diode group, and a second color filter disposed on the encapsulating layer and corresponding to the auxiliary light-emitting diode.

[0019] In one embodiment, the shading layer further includes a first portion disposed inside the second opening, wherein the first portion can define a second filter opening overlapping the auxiliary light-emitting diode.

[0020] In one embodiment, the display panel may further include an encapsulating layer disposed on the first light-emitting diode group, the second light-emitting diode group, and the auxiliary light-emitting diodes, a light-shielding layer disposed on the encapsulating layer and defining first filter openings overlapping the second light-emitting diode group and second filter openings overlapping the auxiliary light-emitting diodes, first color filters disposed on the light-shielding layer and corresponding to the second light-emitting diode group, and a second color filter disposed on the light-shielding layer and corresponding to the auxiliary light-emitting diodes.

[0021] In one embodiment, the display panel further includes an insulating layer disposed between the second subpixel circuit group and the second light-emitting diode group, wherein the insulating layer can define an opening overlapping the transmissive area.

[0022] In one embodiment, the non-transparent region includes a first region and a second region outside the first region, the second sub-pixel circuit group is arranged in the first region, and the second light-emitting diode group may include second red light-emitting diodes and second blue light-emitting diodes arranged in the first region, and third green light-emitting diodes arranged in the second region.

[0023] In one embodiment, the second light-emitting diode group further includes a second green light-emitting diode arranged in the first region, and the third green light-emitting diode and the second green light-emitting diode can be electrically connected to the same subpixel circuit.

[0024] According to another aspect of the present invention, a display panel is provided, including a substrate including a first display area and a second display area defined inside the first display area and including a transparent area and a non-transparent area outside the transparent area, a first sub-pixel circuit group disposed in the first display area, a first light-emitting diode group disposed in the first display area and electrically connected to the first sub-pixel circuit group, a second sub-pixel circuit group disposed in the non-transparent area, and a second light-emitting diode group disposed in the non-transparent area and electrically connected to the second sub-pixel circuit group, wherein the non-transparent area includes a first area and a second area outside the first area, the second sub-pixel circuit group is disposed in the first area, and the second light-emitting diode group includes 2-1 light-emitting diodes disposed in the first area and 2-2 light-emitting diodes disposed in the second area.

[0025] In one embodiment, the transparent region is provided in multiple numbers, the first region is surrounded by four transparent regions on a plane, and the second-second light-emitting diodes can be arranged one by one between the four transparent regions.

[0026] In one embodiment, the second-1 light-emitting diodes may include at least one blue light-emitting diode and at least one red light-emitting diode, and the second-2 light-emitting diodes may include a green light-emitting diode.

[0027] In one embodiment, adjacent pairs of the second-second light-emitting diodes may be electrically connected to the same subpixel circuit.

[0028] In one embodiment, the second-1 light-emitting diodes may include at least one blue light-emitting diode, at least one red light-emitting diode, and a green light-emitting diode, and the second-2 light-emitting diodes may include a green light-emitting diode.

[0029] In one embodiment, the display panel further includes a lower metal layer disposed in the second display area and defining a first opening overlapping the transparent area, wherein the first opening may have an oval shape or a capsule shape in a plane.

[0030] In one embodiment, at least a portion of the boundary of the first opening may include convex portions.

[0031] According to another aspect of the present invention, an electronic device is provided, comprising a display panel and a component overlapping the display panel, the display panel comprising: a substrate including a first display area and a second display area including a transparent area and a non-transparent area surrounded by the first display area; a first sub-pixel circuit group disposed in the first display area; a first light-emitting diode group disposed in the first display area and electrically connected to the first sub-pixel circuit group; a second sub-pixel circuit group disposed in the non-transparent area; a second light-emitting diode group disposed in the non-transparent area and electrically connected to the second sub-pixel circuit group; and an auxiliary light-emitting diode disposed inside the transparent area and electrically connected to the second sub-pixel circuit group.

[0032] According to another aspect of the present invention, a display panel and a component overlapping the display panel are provided, the display panel comprises a substrate including a first display area and a second display area located inside the first display area and including a transparent area and a non-transparent area outside the transparent area, a first sub-pixel circuit group disposed in the first display area, a first light-emitting diode group disposed in the first display area and electrically connected to the first sub-pixel circuit group, a second sub-pixel circuit group disposed in the non-transparent area, and a second light-emitting diode group disposed in the non-transparent area and electrically connected to the second sub-pixel circuit group; wherein the non-transparent area includes a first area and a second area outside the first area, the second sub-pixel circuit group is disposed in the first area, and the second light-emitting diode group comprises 2-1 light-emitting diodes disposed in the first area and 2-2 light-emitting diodes disposed in the second area. An electronic device is provided, comprising second-second light-emitting diodes.

[0033] The display panel and electronic device including the same according to the embodiments of the present invention, as described above, can improve the resolution of the component area by arranging auxiliary pixels in the component area. Of course, the scope of the present invention is not limited by such effects.

[0034] FIG. 1 is a perspective view schematically illustrating an electronic device according to one embodiment of the present invention.

[0035] FIG. 2 is a cross-sectional view schematically illustrating a cross-section along line Ⅰ-Ⅰ' of the electronic device illustrated in FIG. 1.

[0036] FIG. 3 is a plan view schematically illustrating a display panel according to one embodiment of the present invention.

[0037] FIG. 4a and FIG. 4b are each an equivalent circuit diagram of one pixel according to one embodiment of the present invention.

[0038] FIG. 5 is a cross-sectional view schematically illustrating a display panel according to one embodiment of the present invention.

[0039] FIG. 6 is a plan view schematically illustrating a display panel according to one embodiment of the present invention.

[0040] FIG. 7a is a plan view schematically illustrating a display panel according to one embodiment of the present invention.

[0041] FIG. 7b is a plan view schematically illustrating a second lower metal layer according to one embodiment of the present invention.

[0042] FIG. 8a, FIG. 8b and FIG. 8c are cross-sectional views schematically illustrating a cross-section along line Ⅱ-Ⅱ' of the display panel illustrated in FIG. 7a.

[0043] FIG. 9 is a cross-sectional view schematically illustrating a display panel according to one embodiment of the present invention.

[0044] FIG. 10 is a plan view schematically illustrating a display panel according to one embodiment of the present invention.

[0045] FIG. 11a and FIG. 11b are drawings for explaining the arrangement of a bridge portion and an island portion according to one embodiment of the present invention.

[0046] Figure 12 is a drawing for explaining the shape of the bridge section and the island section.

[0047] FIG. 13 is a plan view schematically illustrating a display panel according to one embodiment of the present invention.

[0048] FIG. 14 is a plan view schematically illustrating a display panel according to one embodiment of the present invention.

[0049] FIG. 15 is a plan view schematically illustrating a display panel according to one embodiment of the present invention.

[0050] The present invention is capable of various modifications and embodiments. Specific embodiments are illustrated in the drawings and described in detail in the detailed description. The effects and features of the present invention, as well as the methods for achieving them, will become clearer with reference to the embodiments described in detail below, along with the drawings. However, the present invention is not limited to the embodiments disclosed below and can be implemented in various forms.

[0051] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. When describing with reference to the drawings, identical or corresponding components are given the same drawing reference numerals, and redundant descriptions thereof will be omitted.

[0052] In this specification, the terms first, second, etc. are not used in a limiting sense, but are used for the purpose of distinguishing one component from another.

[0053] In this specification, singular expressions include plural expressions unless the context clearly indicates otherwise.

[0054] In this specification, terms such as “include” or “have” mean that a feature or component described in the specification exists, and do not preclude the possibility that one or more other features or components may be added.

[0055] When a part, such as a film, region, or component, is said to be on or above another part in this specification, this includes not only cases where it is directly on top of the other part, but also cases where another film, region, component, etc. is interposed between them. On the other hand, when one component is said to be placed 'directly' on another component, it means that no other component is placed between the two components.

[0056] In this specification, when it is said that a film, region, component, etc. are connected, it includes cases where the films, regions, components, etc. are directly connected, and / or cases where other films, regions, components, etc. are interposed between the films, regions, components, etc. and are indirectly connected. For example, when it is said in this specification that a film, region, component, etc. are electrically connected, it refers to cases where the films, regions, components, etc. are directly electrically connected, and / or cases where other films, regions, components, etc. are interposed between them and are indirectly electrically connected.

[0057] Additionally, relative terms such as "below" or "bottom" and "above" or "top" may be used herein to describe the relationship of one element to another as depicted in the drawings. It will be understood that these relative terms encompass orientations of the device other than those depicted in the drawings. For example, if one of the drawings is flipped over, an element described as being "below" another element would now be located "above" the other element. Thus, the term "below" may encompass both "below" and "above" orientations, depending on the orientation of a particular drawing. Similarly, if one of the drawings is flipped over, an element described as being "below" or "beneath" another element would now be located "above" the other element. Thus, the terms "below" or "bottom" may represent either an up or down orientation, depending on the orientation of the device.

[0058] In this specification, the x-direction, y-direction, and z-direction are not limited to directions along the three axes on the orthogonal coordinate system, and can be interpreted in a broad sense that includes them. For example, the x-direction, y-direction, and z-direction may be orthogonal to each other, but may also refer to different directions that are not orthogonal to each other.

[0059] In this specification, when we say “planar”, it means when the target portion is viewed from above (e.g., when viewed in a direction perpendicular to the upper surface of the substrate), and when we say “cross-sectional”, it means when the target portion is viewed from the side in a cross-section cut vertically.

[0060] In this specification, the first component "overlaps" the second component means that the first component is positioned above or below the second component so that at least a portion of the first component overlaps the second component in a plane.

[0061] In some embodiments of this specification, where implementations are otherwise feasible, specific process sequences may be performed in a different order than described. For example, two processes described in succession may be performed substantially simultaneously, or in a reverse order from the described order.

[0062] For convenience of explanation, the sizes of components in the drawings may be exaggerated or reduced. For example, the sizes and thicknesses of each component shown in the drawings are arbitrarily indicated for convenience of explanation, and thus the present invention is not necessarily limited to what is shown.

[0063] As used herein, "about" or "approximately" means within the stated value and within an acceptable range of variation as determined by a person skilled in the art, taking into account the measurement and the errors associated with the particular measurement method (i.e., limitations of the measurement system). For example, "about" can mean within one or more standard deviations, or within ± 30%, 20%, 10%, or 5% of the stated value.

[0064] The embodiments of this specification are described with reference to drawings schematically illustrating ideal embodiments. Therefore, differences may occur between the shapes depicted in the drawings and the shapes of implemented components due to limitations in manufacturing techniques and other factors. Therefore, the embodiments described herein should not be construed as limited to the specific shapes depicted herein, but rather to encompass, for example, shape variations resulting from manufacturing. Accordingly, the regions depicted in the drawings are schematic in nature and are not intended to limit the scope of the claims of the present invention.

[0065] FIG. 1 is a perspective view schematically illustrating an electronic device according to one embodiment of the present invention.

[0066] Referring to FIG. 1, the electronic device (1) may include a display area (DA) and a peripheral area (PA) outside the display area (DA). The display area (DA) may include a first display area (DA1) and a second display area (DA2) at least partially surrounded by the first display area (DA1). The display area (DA) may be an area in which a plurality of pixels (PX) are arranged. Each of the first display area (DA1) and the second display area (DA2) may individually display an image or may display an image together. The peripheral area (PA) may be a type of non-display area in which no pixels (PX) are arranged. The display area (DA) may be entirely surrounded by the peripheral area (PA).

[0067] The first display area (DA1) may have an approximately rectangular shape in which the length in the first direction (x direction) is shorter than the length in the second direction (y direction) on a plane. Here, the third direction (z direction) is a direction orthogonal to the first direction (x direction) and the second direction (y direction) and represents the thickness direction of the display panel of the electronic device (1). The first display area (DA1) may have various shapes such as polygons, circles, ovals, and irregular shapes on a plane. The second display area (DA2) may have various shapes such as polygons, irregular shapes such as circles, ovals, and squares on a plane. Although FIG. 1 illustrates that the second display area (DA2) is arranged at the center of the upper side (+y direction) of the first display area (DA1), the second display area (DA2) may also be arranged at the center of the lower side (-y direction), the upper left side, the upper right side, the lower left side, or the lower right side of the first display area (DA1).

[0068] An electronic device (1) can provide an image using pixels (PX) arranged in a display area (DA). Each pixel (PX) can include a display element and subpixel circuits electrically connected to the display element. The display element can be an organic light-emitting diode (OLED) that emits red, green, or blue light. The pixels (PX) can include a plurality of first pixels (PX1) arranged in a first display area (DA1) and second pixels (PX2) arranged in a second display area (DA2). In the following specification, a pixel (PX) means a subpixel that each emits a different color, and each pixel (PX) can be, for example, one of a red subpixel, a green subpixel, and a blue subpixel.

[0069] The electronic device (1) may include a component (40, see FIG. 2) that is arranged at the bottom of the display panel and overlaps a second display area (DA2). The second display area (DA2) may include a plurality of transparent areas (TA) through which light or sound emitted from or directed toward the component (40) is transmitted. When light is transmitted through the second display area (DA2), the light transmittance of the second display area (DA2) may be about 30% or more, about 50% or more, about 75% or more, about 80% or more, about 85% or more, or about 90% or more.

[0070] Since the second display area (DA2) includes transparent areas (TA), the number of second pixels (PX2) arranged per unit area in the second display area (DA2) may be less than the number of first pixels (PX1) arranged per unit area in the first display area (DA1). Accordingly, the resolution of the second display area (DA2) may be lower than the resolution of the first display area (DA1).

[0071] Although FIG. 1 illustrates that one second display area (DA2) is positioned (or defined) within a first display area (DA1), the present invention is not limited thereto. The electronic device (1) may include a plurality of second display areas (DA2), and the shapes and sizes of the plurality of second display areas (DA2) may be different from each other.

[0072] The electronic device (1) is a device that displays a moving image or still image, and can be used as a display screen for various products such as a mobile phone, a smart phone, a tablet personal computer (PC), a mobile communication terminal, an electronic notebook, an electronic book, a portable multimedia player (PMP), a navigation device, an Ultra Mobile PC (UMPC), etc., as well as a television, a laptop, a monitor, a billboard, an Internet of Things (IOT) device, etc. In addition, the electronic device (1) according to one embodiment can be used in a wearable device such as a smart watch, a watch phone, a glasses-type display, and a head mounted display (HMD). In addition, the electronic device (1) according to one embodiment can be used as a dashboard of a vehicle, a CID (Center Information Display) placed on a center fascia or dashboard of a vehicle, a room mirror display replacing a side mirror of a vehicle, and a display placed on the back of a front seat as entertainment for the rear seat of a vehicle.

[0073] Fig. 2 is a cross-sectional view schematically illustrating a cross-section along line Ⅰ-Ⅰ' of the electronic device illustrated in Fig. 1.

[0074] Referring to FIG. 2, the electronic device (1) may include a display panel (10) and a component (40) overlapping the display panel (10). The display panel (10) may include a substrate (100), a first insulating layer (IL1), a second insulating layer (IL2), a first pixel (PX1), a second pixel (PX2), an encapsulation layer (300), and a protective film (175).

[0075] The substrate (100) may include glass or a polymer resin. The polymer resin may include polyethersulfone, polyacrylate, polyether imide, polyethylene naphthalate, polyethylene terephthalate, polyphenylene sulfide, polyarylate, polyimide, polycarbonate, or cellulose acetate propionate. The substrate (100) including the polymer resin may have flexible, rollable, or bendable properties. In one embodiment, the substrate (100) may have a multilayer structure including a layer including the aforementioned polymer resin and an inorganic layer (not shown) including an inorganic material.

[0076] The display panel (10) may include a first display area (DA1) in which a plurality of first pixels (PX1) are arranged, and a second display area (DA2) in which a plurality of second pixels (PX2) are arranged. Since the components of the display panel (10) are arranged on the front or back surface of the substrate (100), the substrate (100) may be represented as including the first display area (DA1) and the second display area (DA2). The second display area (DA2) may include at least one transparent area (TA) through which light or sound is transmitted.

[0077] A first insulating layer (IL1), a second insulating layer (IL2), a first pixel (PX1), a second pixel (PX2), and an encapsulation layer (300) may be disposed on the front surface of the substrate (100), and a protective film (175) may be disposed on the back surface of the substrate (100). The first pixel (PX1) may include a first subpixel circuit (PC1) and a first light-emitting diode (ED1) electrically connected to the first subpixel circuit (PC1), and the second pixel (PX2) may include a second subpixel circuit (PC2) and a second light-emitting diode (ED2) electrically connected to the second subpixel circuit (PC2).

[0078] The protective film (175) may be attached to the back surface of the substrate (100). An adhesive layer may be interposed between the protective film (175) and the substrate (100). Alternatively, the protective film (175) may be formed directly on the back surface of the substrate (100), in which case no adhesive layer is interposed between the protective film (175) and the substrate (100).

[0079] The protective film (175) can serve to support and protect the substrate (100). The protective film (175) can have an opening (175OP) that overlaps the second display area (DA2). By having the opening (175OP) in the protective film (175), the transmittance of the second display area (DA2), for example, the light transmittance of the transmission area (TA) can be improved. The protective film (175) can include an organic insulating material such as polyethylene terephthalate (PET) or polyimide (PI).

[0080] A first insulating layer (IL1) may be disposed on the substrate (100). The first insulating layer (IL1) may be a buffer layer for preventing or reducing the penetration of impurities into the first subpixel circuit (PC1) and the second subpixel circuit (PC2) from the direction of the substrate (100).

[0081] A first subpixel circuit (PC1) and a second subpixel circuit (PC2) may be arranged on a first insulating layer (IL1). The first subpixel circuit (PC1) may be arranged in a first display area (DA1). The second subpixel circuit (PC2) may be arranged in the second display area (DA2), but may be arranged in a non-transparent area outside a transmissive area (TA). Each of the first subpixel circuit (PC1) and the second subpixel circuit (PC2) may include at least one thin film transistor.

[0082] A first lower metal layer (101) may be arranged so as to overlap the first subpixel circuit (PC1) at a lower portion of the first subpixel circuit (PC1), for example, between the substrate (100) and the first insulating layer (IL1). A second lower metal layer (102) may be arranged so as to overlap the second subpixel circuit (PC2) at a lower portion of the second subpixel circuit (PC2), for example, between the substrate (100) and the first insulating layer (IL1). The second lower metal layer (102) may cover the second display area (DA2), and may include at least one first opening (102OP) through which light or sound emitted from the component (40) or directed toward the component (40) may be transmitted.

[0083] The first opening (102OP) of the second lower metal layer (102) may overlap with the transmission area (TA). The boundary of the first opening (102OP) may coincide with the boundary of the transmission area (TA) on a planar surface. In other words, the first opening (102OP) may define the transmission area (TA). A predetermined voltage may be applied to the second lower metal layer (102). When a predetermined voltage is applied to the second lower metal layer (102), deterioration of the thin film transistor of the second sub-pixel circuit (PC2) may be prevented or reduced.

[0084] A second insulating layer (IL2) may be disposed between the components of the first subpixel circuit (PC1) and the second subpixel circuit (PC2). A first light-emitting diode (ED1) and a second light-emitting diode (ED2) may be disposed on the second insulating layer (IL2). Each of the first light-emitting diode (ED1) and the second light-emitting diode (ED2) may serve as a display element and emit red, green, or blue light. Each of the first light-emitting diode (ED1) and the second light-emitting diode (ED2) may include an organic light-emitting diode or an inorganic light-emitting diode (micro LED).

[0085] The first light-emitting diode (ED1) may be arranged in the first display area (DA1). The second light-emitting diode (ED2) may be arranged in the second display area (DA2), but may be arranged in a non-transparent area outside the transmissive area (TA) within the second display area (DA2). The first light-emitting diode (ED1) may be electrically connected to the first sub-pixel circuit (PC1), and the second light-emitting diode (ED2) may be electrically connected to the second sub-pixel circuit (PC2).

[0086] The first light-emitting diode (ED1) and the second light-emitting diode (ED2) may be sealed with an encapsulating member. The encapsulating member may include an encapsulating layer (300). The encapsulating layer (300) may include at least one inorganic encapsulating layer and at least one organic encapsulating layer. In one embodiment, the encapsulating layer (300) may include a first inorganic encapsulating layer (310), a second inorganic encapsulating layer (330), and an organic encapsulating layer (320) interposed between the first inorganic encapsulating layer (310) and the second inorganic encapsulating layer (330). The first inorganic encapsulating layer (310) and the second inorganic encapsulating layer (330) may include an inorganic insulating material such as silicon oxide, silicon nitride, or silicon oxynitride. The organic encapsulating layer (320) may include a polymer-based material. The polymeric material may include acrylic resin, epoxy resin, polyimide, and polyethylene. In another embodiment, the sealing member may include a sealing substrate.

[0087] In one embodiment, the display panel (10) may further include a black matrix (not shown) and a color filter layer (not shown) including color filters. The color filter layer may be disposed on the encapsulating layer (300).

[0088] The second display area (DA2) may include a transparent area (TA) in which thin film transistors, etc. are not arranged. The transparent area (TA) may be understood as an area through which light or sound emitted from or directed toward the component (40) is transmitted.

[0089] Since the second display area (DA2) includes a plurality of transparent areas (TA), the resolution of the second display area (DA2) may be lower than the resolution of the first display area (DA1). For example, the resolution of the second display area (DA2) may be about 1 / 2, 1 / 3, 1 / 4, 1 / 5.33, 1 / 8, 3 / 8, 1 / 9, 1 / 12.25, 1 / 16, etc. of the resolution of the first display area (DA1).

[0090] The component (40) may be an electronic element that utilizes light or sound. For example, the electronic element may be a sensor that measures distance, such as a proximity sensor, a sensor that recognizes a part of the user's body (e.g., a fingerprint, iris, face, etc.), an image sensor that captures an image (e.g., a camera), or a small lamp that outputs light. The electronic element that utilizes light may utilize light of various wavelength bands, such as visible light, infrared light, and ultraviolet light. The electronic element that utilizes sound may utilize ultrasound or sound of another frequency band.

[0091] FIG. 3 is a plan view schematically illustrating a display panel according to one embodiment of the present invention.

[0092] Referring to FIG. 3, the display panel (10) may include a display area (DA) in which pixels (PX) are arranged and a peripheral area (PA) outside the display area (DA). The display area (DA) may include a first display area (DA1) in which a main image is displayed, and a second display area (DA2) having a plurality of transparent areas (TA) in which an auxiliary image is displayed. The auxiliary image may form a single overall image together with the main image, or the auxiliary image may be an image independent from the main image. Hereinafter, in the present specification, the substrate (100) may be represented as including areas such as the first display area (DA1), the second display area (DA2), and the peripheral area (PA).

[0093] A pixel (PX) may include a plurality of first pixels (PX1) and a plurality of second pixels (PX2). The first pixels (PX1) may be arranged in a first display area (DA1), and the second pixels (PX2) may be arranged in a second display area (DA2). The first pixels (PX1) and the second pixels (PX2) may include display elements that emit red, green, or blue light.

[0094] The second display area (DA2) may be arranged inside the first display area (DA1). In other words, the second display area (DA2) may be surrounded by the first display area (DA1). Although FIG. 3 illustrates a case where there is only one second display area (DA2), a plurality of second display areas (DA2) may be provided. The shapes and sizes of the plurality of second display areas (DA2) may be provided differently.

[0095] Each pixel (PX) may include a subpixel circuit electrically connected to a display element. Each of the subpixel circuits may be electrically connected to external circuits and wires arranged in a peripheral area (PA). A first driving circuit (SDRV1), a second driving circuit (SDRV2), pads (PADs), a driving voltage supply line (11), and a common voltage supply line (13) may be arranged in the peripheral area (PA).

[0096] The first driver circuit (SDRV1) and the second driver circuit (SDRV2) may be arranged side by side with the display area (DA) therebetween. The pixels (PX) arranged in the display area (DA) may be electrically connected to the first driver circuit (SDRV1) or the second driver circuit (SDRV2) via scan lines (SL) extending in the first direction (x direction). For example, some of the pixels (PX) may be electrically connected to the first driver circuit (SDRV1), and some of the pixels (PX) may be electrically connected to the second driver circuit (SDRV2). Each of the first driver circuit (SDRV1) and the second driver circuit (SDRV2) may sequentially transmit scan signals to the pixels (PX) located in the same row as the scan line (SL) via the scan line (SL). In one embodiment, one of the first drive circuit (SDRV1) and the second drive circuit (SDRV2) may be omitted.

[0097] Although Fig. 3 illustrates that one scan line (SL) is connected to one pixel (PX), the present invention is not limited thereto. One pixel (PX) may be connected to multiple scan lines (SL), and the multiple scan lines (SL) may transmit different scan signals, such as gate signals and emission control signals.

[0098] The pads (PADs) may be arranged on one side of the substrate (100). The pads (PADs) may be exposed without being covered by an insulating layer and may be connected to the circuit board (30). A display driving circuit (32) may be arranged on the circuit board (30).

[0099] The display driving circuit (32) can generate a control signal to be transmitted to the first driving circuit (SDRV1) and the second driving circuit (SDRV2). The display driving circuit (32) can include a data driving circuit, and the data driving circuit can generate a data signal. The generated data signal can be transmitted to the pixels (PX) through a fan-out wiring (FW) arranged in a peripheral area (PA) of the display panel (10) and a data line (DL) connected to the fan-out wiring (FW) and extending in a second direction (y direction). In one embodiment, the data driving circuit can be arranged in the peripheral area (PA) of the substrate (100).

[0100] The display driving circuit (32) can supply a driving voltage (ELVDD, see FIG. 4a) to the driving voltage supply line (11) and a common voltage (ELVSS, see FIG. 4a) to the common voltage supply line (13). The driving voltage (ELVDD) is applied to the pixels (PX) through a driving voltage line (PL) that is connected to the driving voltage supply line (11) and extends to the transmission area (TA), and the common voltage (ELVSS) can be applied to the opposite electrode of the light-emitting diode through the common voltage supply line (13).

[0101] The driving voltage supply line (11) may extend in the first direction (x direction) from the lower side of the peripheral area (PA). The common voltage supply line (13) may partially surround the first display area (DA1) on a plane. The common voltage supply line (13) may have a loop shape with one side open.

[0102] FIG. 4a and FIG. 4b are each an equivalent circuit diagram of one pixel according to one embodiment of the present invention.

[0103] Referring to FIG. 4A, in one embodiment, a pixel (PX) may include a subpixel circuit (PC) and a light emitting diode (ED) electrically connected to the subpixel circuit (PC). The subpixel circuit (PC) may include a first transistor (T1), a second transistor (T2), and a capacitor (Cst). The subpixel circuit (PC) may be electrically connected to a gate line (GL) and a data line (DL). The first transistor (T1) may be a driving transistor, and the second transistor (T2) may be a switching transistor. The second transistor (T2) may be electrically connected to the gate line (GL) and the data line (DL), and may transmit a data signal (Dm) input through the data line (DL) to the first transistor (T1) in response to a gate signal (Gn) input through the gate line (GL).

[0104] The capacitor (Cst) is connected to the second transistor (T2) and the driving voltage line (PL), and stores a voltage corresponding to the difference between the voltage received from the second transistor (T2) and the driving voltage (ELVDD) supplied to the driving voltage line (PL).

[0105] The first transistor (T1) is connected to a driving voltage line (PL) and a capacitor (Cst), and can control a driving current flowing from the driving voltage line (PL) to the light-emitting diode (ED) in response to a voltage value stored in the capacitor (Cst). The light-emitting diode (ED) can emit light having a predetermined brightness according to the driving current.

[0106] In one embodiment, FIG. 4A illustrates that the subpixel circuit (PC) includes two transistors and one capacitor, but the present invention is not limited thereto. In other embodiments, the subpixel circuit (PC) may include three or more transistors and / or two or more capacitors.

[0107] Referring to FIG. 4B, in one embodiment, the subpixel circuit (PC) may include first to eighth transistors (T1, T2, T3, T4, T5, T6, T7, T8) and a capacitor (Cst). The subpixel circuit (PC) may be electrically connected to a data line (DL), a first gate line (GWL), a second gate line (GIL), a third gate line (GCL), a fourth gate line (GBL), and an emission control line (EL). In addition, the subpixel circuit (PC) may be electrically connected to an initialization voltage line (VL), a node initialization voltage line (VIL), and a driving voltage line (PL).

[0108] In one embodiment, some of the first to eighth transistors (T1 to T8) may be provided as NMOS (n-channel MOSFETs), and the rest may be provided as PMOS (p-channel MOSFETs). FIG. 4b illustrates that the third transistor (T3) and the fourth transistor (T4) among the first to eighth transistors (T1 to T8) are provided as NMOS, and the remaining transistors (T1, T2, T5, T6, T7, and T8) are provided as PMOS. However, the present invention is not limited thereto. In another embodiment, the first to eighth transistors (T1 to T8) may all be provided as PMOS or NMOS. Depending on the type and / or operating conditions of the transistor, the first terminal of the transistor may be a source electrode or a drain electrode, and the second terminal may be an electrode different from the first terminal. For example, if the first terminal is a source electrode, the second terminal may be a drain electrode.

[0109] A first transistor (T1) (driving transistor) may be connected between a driving voltage line (PL) and a light-emitting diode (ED). The first transistor (T1) may be connected between a first node (N1) and a third node (N3). The first transistor (T1) may include a gate electrode connected to a second node (N2), a first terminal connected to the first node (N1), and a second terminal connected to the third node (N3). The driving voltage line (PL) may transmit a driving voltage (ELVDD) to the first transistor (T1). The first transistor (T1) is a driving transistor, and may receive a data signal (Dm) according to a switching operation of the second transistor (T2) to supply a driving current to the light-emitting diode (ED).

[0110] A second transistor (T2) (data write transistor) may be connected between a data line (DL) and a first node (N1). The second transistor (T2) may include a gate electrode connected to a first gate line (GWL), a first terminal connected to the data line (DL), and a second terminal connected to the first node (N1). The second transistor (T2) may be turned on in response to a first scan signal (GW) transmitted through the first gate line (GWL) and may perform a switching operation to transmit a data signal (Dm) transmitted to the data line (DL) to the first node (N1).

[0111] A third transistor (T3) (compensation transistor) may be connected between the second node (N2) and the third node (N3). The third transistor (T3) may include a gate electrode connected to the third gate line (GCL), a first terminal connected to the second node (N2), and a second terminal connected to the third node (N3). The third transistor (T3) may be turned on according to a third scan signal (GC) received through the third gate line (GCL) to diode-connect the first transistor (T1) and thereby compensate for the threshold voltage of the first transistor (T1).

[0112] A fourth transistor (T4) (node ​​initialization transistor) may be connected between a second node (N2) and a node initialization voltage line (VIL). The fourth transistor (T4) may include a gate electrode connected to a second gate line (GIL), a first terminal connected to the second node (N2), and a second terminal connected to the node initialization voltage line (VIL). The fourth transistor (T4) may be turned on according to a second scan signal (GI) received through the second gate line (GIL) to transmit an initialization voltage (Vint) to a gate electrode of the first transistor (T1) to initialize the gate electrode of the first transistor (T1).

[0113] The fifth transistor (T5) (first light-emitting control transistor) may be connected between the driving voltage line (PL) and the first node (N1). The fifth transistor (T5) may include a gate electrode connected to the light-emitting control line (EL), a first terminal connected to the driving voltage line (PL), and a second terminal connected to the first node (N1).

[0114] The sixth transistor (T6) (second emission control transistor) may be connected between the light emitting diode (ED) and the third node (N3). The sixth transistor (T6) may include a gate electrode connected to the emission control line (EL), a first terminal connected to the third node (N3), and a second terminal connected to the pixel electrode of the light emitting diode (ED). The fifth transistor (T5) and the sixth transistor (T6) may be simultaneously turned on according to an emission control signal (EM) transmitted through the emission control line (EL), so that a driving current may flow to the light emitting diode (ED).

[0115] The seventh transistor (T7) (initialization transistor) may be connected between the light-emitting diode (ED) and the initialization voltage line (VL). The seventh transistor (T7) may include a gate electrode connected to the fourth gate line (GBL), a first terminal connected to the second terminal of the sixth transistor (T6) and the pixel electrode of the light-emitting diode (ED), and a second terminal connected to the initialization voltage line (VL). The seventh transistor (T7) may be turned on according to the fourth scan signal (GB) received through the fourth gate line (GBL) to transmit the initialization voltage (Vaint) to the pixel electrode of the light-emitting diode (ED) to initialize the pixel electrode of the light-emitting diode (ED). The seventh transistor (T7) may be turned on simultaneously with the eighth transistor (T8) according to the fourth scan signal (GB).

[0116] The eighth transistor (T8) (bias transistor) may be connected between the first node (N1) and the bias voltage line (VBL). The eighth transistor (T8) may include a gate electrode connected to the fourth gate line (GBL), a first terminal connected to the bias voltage line (VBL), and a second terminal connected to the first node (N1). The eighth transistor (T8) may be turned on according to the fourth scan signal (GB) received through the fourth gate line (GBL) to apply a bias voltage (VOBS) to the first terminal of the first transistor (T1) so as to preset a voltage suitable for a subsequent operation of the first transistor (T1) at the first terminal.

[0117] The capacitor (Cst) may include a first capacitor electrode connected to the gate electrode of the first transistor (T1) and a second capacitor electrode connected to the driving voltage line (PL). The capacitor (Cst) may store and maintain a voltage corresponding to the difference between the voltages across the driving voltage line (PL) and the gate electrode of the first transistor (T1), thereby maintaining the voltage applied to the gate electrode of the first transistor (T1).

[0118] A light emitting diode (ED) includes a pixel electrode and a counter electrode, and the counter electrode can receive a common voltage (ELVSS). The light emitting diode (ED) can display an image by emitting light by receiving a driving current from a first transistor (T1).

[0119] Although FIG. 4b illustrates an embodiment in which a sub-pixel circuit (PC) includes eight transistors and one capacitor, the present invention is not limited thereto. The number of transistors and capacitors included in the sub-pixel circuit (PC) and the circuit design may vary.

[0120] FIG. 5 is a cross-sectional view schematically illustrating a display panel according to one embodiment of the present invention.

[0121] FIG. 5 schematically illustrates a portion of a second display area (DA2) and a portion of a first display area (DA1) of a display panel (10) to explain a second pixel (PX2) arranged in a second display area (DA2) and a first pixel (PX1) arranged in a first display area (DA1).

[0122] Referring to FIG. 5, a first pixel (PX1) may be arranged in a first display area (DA1), and a second pixel (PX2) may be arranged in a second display area (DA2). The first pixel (PX1) may include a first light-emitting diode (ED1) arranged in the first display area (DA1) and a first subpixel circuit (PC1) electrically connected to the first light-emitting diode (ED1). The second pixel (PX2) may include a second light-emitting diode (ED2) arranged in the second display area (DA2) and a second subpixel circuit (PC2) electrically connected to the second light-emitting diode (ED2). The area in which the second pixel (PX2) is arranged in the second display area (DA2) may be represented as a non-transparent area (NTA) outside of the transparent areas (TA, see FIG. 1). For example, each of the transparent areas (TA) may be surrounded by a non-transparent area (NTA).

[0123] A buffer layer (111) may be disposed on a substrate (100). The buffer layer (111) may have a configuration corresponding to the first insulating layer (IL1) described with reference to FIG. 2. A first subpixel circuit (PC1) and a second subpixel circuit (PC2) may be disposed on the buffer layer (111). The first subpixel circuit (PC1) may be disposed in a first display area (DA1), and the second subpixel circuit (PC2) may be disposed in a second display area (DA2). The first subpixel circuit (PC1) may include a first thin-film transistor (TFT) and a first storage capacitor (Cst1). The second subpixel circuit (PC2) may include a second thin-film transistor (TFT') and a second storage capacitor (Cst2).

[0124] A first lower metal layer (101) may be arranged under the first sub-pixel circuit (PC1) to overlap with the first thin-film transistor (TFT), and a second lower metal layer (102) may be arranged under the second sub-pixel circuit (PC2) to overlap with the second thin-film transistor (TFT'). For example, the first lower metal layer (101) and the second lower metal layer (102) may be arranged between the substrate (100) and the buffer layer (111). The first lower metal layer (101) and the second lower metal layer (102) may include a conductive material such as molybdenum (Mo), aluminum (Al), copper (Cu), or titanium (Ti), and may be formed as a single layer or multiple layers.

[0125] The first lower metal layer (101) can reduce the deterioration of the first thin film transistor (TFT). In some embodiments, the first lower metal layer (101) can be omitted. The second lower metal layer (102) can cover the entire surface of the non-transmissive area (NTA). The second lower metal layer (102) can have a first opening (102OP, see FIG. 2) overlapping the transmissive area (TA). The second lower metal layer (102) can reduce the deterioration of the second thin film transistor (TFT') and prevent light from being diffracted by gaps between components of the second sub-pixel circuit (PC2).

[0126] The first thin film transistor (TFT) may include a first semiconductor layer (A1), a first gate electrode (G1), a first source electrode (S1), and a first drain electrode (D1). The second thin film transistor (TFT') may include a second semiconductor layer (A2), a second gate electrode (G2), a second source electrode (S2), and a second drain electrode (D2).

[0127] The first semiconductor layer (A1) and the second semiconductor layer (A2) may be disposed on the buffer layer (111). The first semiconductor layer (A1) and the second semiconductor layer (A2) may include a silicon-based semiconductor material. The silicon-based semiconductor material may include polysilicon or amorphous silicon. In another embodiment, the first semiconductor layer (A1) and the second semiconductor layer (A2) may include an oxide-based semiconductor material. The oxide-based semiconductor material may include an oxide of at least one material selected from the group consisting of indium (In), gallium (Ga), stannum (Sn), zirconium (Zr), vanadium (V), hafnium (Hf), cadmium (Cd), germanium (Ge), chromium (Cr), titanium (Ti), and zinc (Zn). The first semiconductor layer (A1) and the second semiconductor layer (A2) may include a channel region and a source region and a drain region doped with impurities.

[0128] A first gate insulating layer (112) may be provided to cover the first semiconductor layer (A1) and the second semiconductor layer (A2). The first gate insulating layer (112) may include an inorganic insulating material such as silicon oxide, silicon nitride, or silicon oxynitride. The first gate insulating layer (112) may be a single layer or multiple layers including the aforementioned inorganic insulating material.

[0129] A first gate electrode (G1) overlapping the first semiconductor layer (A1) and a second gate electrode (G2) overlapping the second semiconductor layer (A2) may be disposed on the first gate insulating layer (112). The first gate electrode (G1) and the second gate electrode (G2) may include molybdenum (Mo), aluminum (Al), copper (Cu), titanium (Ti), or the like, and may be formed as a single layer or multiple layers. In one embodiment, the first gate electrode (G1) and the second gate electrode (G2) may be a single layer including molybdenum (Mo).

[0130] A second gate insulating layer (113) may be disposed on the first gate electrode (G1) and the second gate electrode (G2). The second gate insulating layer (113) may include an inorganic insulating material such as silicon oxide, silicon nitride, or silicon oxynitride. The second gate insulating layer (113) may be a single layer or multiple layers including the aforementioned inorganic insulating material.

[0131] An upper capacitor electrode (CE2) of a first storage capacitor (Cst1) and an upper capacitor electrode (CE2') of a second storage capacitor (Cst2) may be disposed on a second gate insulating layer (113). The upper capacitor electrode (CE2) of the first storage capacitor (Cst1) may overlap with the first gate electrode (G1). The first gate electrode (G1) may be provided integrally with the lower capacitor electrode (CE1) of the first storage capacitor (Cst1). The upper capacitor electrode (CE2') of the second storage capacitor (Cst2) may overlap with the second gate electrode (G2). The second gate electrode (G2) may be provided integrally with the lower capacitor electrode (CE1') of the second storage capacitor (Cst2).

[0132] The upper capacitor electrode (CE2) of the first storage capacitor (Cst1) and the upper capacitor electrode (CE2') of the second storage capacitor (Cst2) include a conductive material such as molybdenum (Mo), aluminum (Al), copper (Cu), or titanium (Ti), and may be formed as a single layer or multiple layers.

[0133] The interlayer insulating layer (115) may be formed to cover the upper capacitor electrode (CE2) of the first storage capacitor (Cst1) and the upper capacitor electrode (CE2') of the second storage capacitor (Cst2). The interlayer insulating layer (115) may include an inorganic insulating material such as silicon oxide, silicon nitride, or silicon oxynitride. The interlayer insulating layer (115) may be a single layer or multiple layers including the aforementioned inorganic insulating material.

[0134] A first source electrode (S1) and a first drain electrode (D1) of a first thin-film transistor (TFT) and a second source electrode (S2) and a second drain electrode (D2) of a second thin-film transistor (TFT') may be arranged on an interlayer insulating layer (115). The first source electrode (S1) and the first drain electrode (D1) of the first thin-film transistor (TFT) and the second source electrode (S2) and the second drain electrode (D2) of the second thin-film transistor (TFT') may include a conductive material such as molybdenum (Mo), aluminum (Al), copper (Cu), or titanium (Ti) and may be provided in a single layer or multiple layers. In one embodiment, the first source electrode (S1) and the first drain electrode (D1) of the first thin-film transistor (TFT), and the second source electrode (S2) and the second drain electrode (D2) of the second thin-film transistor (TFT') may be formed of a multilayer structure of Ti / Al / Ti.

[0135] A first planarization layer (116), a second planarization layer (117), and a third planarization layer (118) may be disposed on a first source electrode (S1) and a first drain electrode (D1) of a first thin-film transistor (TFT), and a second source electrode (S2) and a second drain electrode (D2) of a second thin-film transistor (TFT'). Each of the first planarization layer (116), the second planarization layer (117), and the third planarization layer (118) includes an organic insulating material or an inorganic insulating material, and may be provided as a single layer or multiple layers. The organic insulator may include general-purpose polymers such as BCB (Benzocyclobutene), polyimide, HMDSO (Hexamethyldisiloxane), Polymethylmethacrylate (PMMA), Polystyrene (PS), polymer derivatives having phenolic groups, acrylic polymers, imide polymers, aryl ether polymers, amide polymers, fluorinated polymers, p-xylene polymers, vinyl alcohol polymers, and blends thereof. The inorganic insulator may include silicon oxide, silicon nitride, silicon oxynitride, and the like. After forming the first planarization layer (116), the second planarization layer (117), and the third planarization layer (118), chemical mechanical polishing may be performed to provide a flat upper surface. In some embodiments, some of the first planarization layer (116), the second planarization layer (117), and the third planarization layer (118) may be omitted.

[0136] A first light-emitting diode (ED1) and a second light-emitting diode (ED2) may be arranged on the third planarization layer (118). The first light-emitting diode (ED1) may include a pixel electrode (221), a counter electrode (223), and an intermediate layer (222) interposed between the pixel electrode (221) and the counter electrode (223). The second light-emitting diode (ED2) may include a pixel electrode (221'), a counter electrode (223), and an intermediate layer (222) interposed between the pixel electrode (221') and the counter electrode (223).

[0137] The pixel electrode (221) of the first light-emitting diode (ED1) and the pixel electrode (221') of the second light-emitting diode (ED2) may be disposed on the third planarization layer (118). The pixel electrode (221) of the first light-emitting diode (ED1) may be electrically connected to the first subpixel circuit (PC1) through the first contact electrode (CM1) disposed between the first planarization layer (116) and the second planarization layer (117) and the second contact electrode (CM2) disposed between the second planarization layer (117) and the third planarization layer (118).

[0138] The pixel electrode (221') of the second light-emitting diode (ED2) can be electrically connected to the second subpixel circuit (PC2) through the first contact electrode (CM1') disposed between the first planarization layer (116) and the second planarization layer (117) and the second contact electrode (CM2') disposed between the second planarization layer (117) and the third planarization layer (118).

[0139] The pixel electrode (221) of the first light-emitting diode (ED1) and the pixel electrode (221') of the second light-emitting diode (ED2) may include a conductive oxide such as indium tin oxide, indium zinc oxide, zinc oxide (ZnO), indium oxide (In2O3), indium gallium oxide, or aluminum zinc oxide. The pixel electrode (221) of the first light-emitting diode (ED1) and the pixel electrode (221') of the second light-emitting diode (ED2) may include a reflective film including silver (Ag), magnesium (Mg), aluminum (Al), platinum (Pt), palladium (Pd), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), or a compound thereof. The pixel electrode (221) of the first light-emitting diode (ED1) and the pixel electrode (221') of the second light-emitting diode (ED2) may further include a film formed of ITO, IZO, ZnO or In2O3 above / below the aforementioned reflective film. In one embodiment, the pixel electrode (221) of the first light-emitting diode (ED1) and the pixel electrode (221') of the second light-emitting diode (ED2) may be provided with a multilayer structure of ITO / Ag / ITO.

[0140] The bank layer (119) can cover the edges of each of the pixel electrode (221) of the first light-emitting diode (ED1) and the pixel electrode (221') of the second light-emitting diode (ED2). The bank layer (119) can define a first pixel opening (OP1) exposing the center area of ​​the pixel electrode (221) of the first light-emitting diode (ED1) and a second pixel opening (OP2) exposing the center area of ​​the pixel electrode (221') of the second light-emitting diode (ED2). The first pixel opening (OP1) can define the light-emitting area of ​​the first light-emitting diode (ED1), and the second pixel opening (OP2) can define the light-emitting area of ​​the second light-emitting diode (ED2).

[0141] The bank layer (119) can prevent arcs from occurring at the edges of each of the pixel electrodes (221, 221') by increasing the distance between the edges of each of the pixel electrodes (221, 221') and the counter electrode (223). The bank layer (119) can include an organic insulating material such as polyimide, polyamide, acrylic resin, benzocyclobutene, HMDSO (hexamethyldisiloxane), and phenol resin.

[0142] An intermediate layer (222) may be disposed on the bank layer (119). The intermediate layer (222) may include a light-emitting layer (222b) of a first light-emitting diode (ED1) and a light-emitting layer (222b') of a second light-emitting diode (ED2). The light-emitting layer (222b) of the first light-emitting diode (ED1) may be disposed to overlap the pixel electrode (221) of the first light-emitting diode (ED1) through the first pixel opening (OP1), and the light-emitting layer (222b') of the second light-emitting diode (ED2) may be disposed to overlap the pixel electrode (221') of the second light-emitting diode (ED2) through the second pixel opening (OP2). Each of the light-emitting layer (222b) of the first light-emitting diode (ED1) and the light-emitting layer (222b') of the second light-emitting diode (ED2) may include a polymer or low-molecular organic material that emits light of a predetermined color (red, green, or blue). Each of the light-emitting layer (222b) of the first light-emitting diode (ED1) and the light-emitting layer (222b') of the second light-emitting diode (ED2) may include an inorganic material or a quantum dot.

[0143] The intermediate layer (222) may include a first functional layer (222a) disposed below the light-emitting layers (222b, 222b') and / or a second functional layer (222c) disposed above the light-emitting layers (222b, 222b'). The first functional layer (222a) may be a hole transport layer (HTL) having a single-layer structure. Alternatively, the first functional layer (222a) may include a hole injection layer (HIL) and a hole transport layer (HTL). The second functional layer (222c) may include an electron transport layer (ETL) and / or an electron injection layer (EIL). Each of the first functional layer (222a) and the second functional layer (222c) may entirely cover the first display area (DA1) and the second display area (DA2). In one embodiment, the first functional layer (222a) and / or the second functional layer (222c) may be omitted.

[0144] A counter electrode (223) may be disposed on the intermediate layer (222). The counter electrode (223) may include a conductive material having a low work function. For example, the counter electrode (223) may include a (semi-)transparent layer including silver (Ag), magnesium (Mg), aluminum (Al), platinum (Pt), palladium (Pd), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), lithium (Li), calcium (Ca), or an alloy thereof. Alternatively, the counter electrode (223) may further include a layer such as ITO, IZO, ZnO, or In2O3 on the (semi-)transparent layer including the above-described material. The counter electrode (223) may be integrally formed to cover the first display area (DA1) and the second display area (DA2).

[0145] A capping layer (250) may be formed on the counter electrode (223). The capping layer (250) may include LiF. Alternatively, the capping layer (250) may include an inorganic insulating material such as silicon nitride and / or an organic insulating material. In some embodiments, the capping layer (250) may be omitted.

[0146] The first light-emitting diode (ED1) and the second light-emitting diode (ED2) can be sealed by an encapsulating layer (300). The encapsulating layer (300) can be disposed on the capping layer (250). The encapsulating layer (300) can prevent external moisture or foreign substances from penetrating into the first light-emitting diode (ED1) and the second light-emitting diode (ED2).

[0147] The encapsulating layer (300) may include at least one inorganic encapsulating layer and at least one organic encapsulating layer. For example, the encapsulating layer (300) may include a first inorganic encapsulating layer (310), an organic encapsulating layer (320), and a second inorganic encapsulating layer (330). The first inorganic encapsulating layer (310) and the second inorganic encapsulating layer (330) may include an inorganic insulating material such as silicon oxide, silicon nitride, or silicon oxynitride. The first inorganic encapsulating layer (310) and the second inorganic encapsulating layer (330) may be a single layer or multiple layers including the aforementioned materials. The organic encapsulating layer (320) may include a polymer-based material. Examples of the polymer-based material may include an acrylic resin, an epoxy resin, polyimide, and polyethylene. In one embodiment, the organic encapsulating layer (320) may include an acrylate.

[0148] FIG. 6 is a plan view schematically illustrating a display panel according to one embodiment of the present invention.

[0149] The display panel (10) illustrated in FIG. 6 further includes an auxiliary light-emitting diode (EDa) arranged in the second display area (DA2) in addition to a first light-emitting diode (ED1, see FIG. 5) arranged in the first display area (DA1) and a second light-emitting diode (ED2, see FIG. 5) arranged in the second display area (DA2). The auxiliary light-emitting diode (EDa) represents a light-emitting diode arranged in a transmission area (TA, see FIG. 1). The size, shape, and position of the light-emitting diodes illustrated in FIG. 6 represent the size, shape, and position of the light-emitting area of ​​each light-emitting diode.

[0150] Referring to FIG. 6, a plurality of first light-emitting diode groups (EDG1) may be repeatedly arranged in a first direction (x direction) and a second direction (y direction) in a first display area (DA1). The first light-emitting diode group (EDG1) may be a repeating unit of the first light-emitting diodes (ED1) described with reference to FIG. 5. The first light-emitting diode group (EDG1) may include one first red light-emitting diode (ED1r), one first blue light-emitting diode (ED1b), and two first green light-emitting diodes (ED1g). Each of the first red light-emitting diode (ED1r), the first blue light-emitting diode (ED1b), and the first green light-emitting diode (ED1g) may emit red, blue, and green light, respectively.

[0151] In the first display area (DA1), first blue light-emitting diodes (ED1b), first red light-emitting diodes (ED1r), and first green light-emitting diodes (ED1g) may be arranged in a matrix in a first direction (x direction) and a second direction (y direction). In odd rows, first blue light-emitting diodes (ED1b) and first red light-emitting diodes (ED1r) may be arranged alternately, and in even rows, first green light-emitting diodes (ED1g) may be arranged repeatedly. In odd columns, first blue light-emitting diodes (ED1b) and first red light-emitting diodes (ED1r) may be arranged alternately, and in even columns, first green light-emitting diodes (ED1g) may be arranged repeatedly.

[0152] In other words, in the first display area (DA1), the first blue light-emitting diodes (ED1b), the first red light-emitting diodes (ED1r), and the first green light-emitting diodes (ED1g) are arranged in a pentile pattern. TM They can be arranged in a structure. For example, among the vertices of an imaginary square with the center point of the first green light-emitting diode (ED1g) as the center point, one first blue light-emitting diode (ED1b) may be arranged at each of the first and third vertices that face each other, and one first red light-emitting diode (ED1r) may be arranged at each of the remaining vertices, the second and fourth vertices. The size of the first green light-emitting diode (ED1g) may be smaller than the size of the first red light-emitting diode (ED1r) and the size of the first blue light-emitting diode (ED1b).

[0153] A plurality of second light-emitting diode groups (EDG2) may be repeatedly arranged in the first direction (x direction) and the second direction (y direction) in the second display area (DA2). The second light-emitting diode group (EDG2) may be a repeating unit of the second light-emitting diodes (ED2) described with reference to FIG. 5. Since the second light-emitting diodes (ED2) are arranged in a non-transparent area (NTA, see FIG. 5) outside the transmissive area (TA, see FIG. 1), the second light-emitting diode group (EDG2) may also be arranged in the non-transmissive area (NTA). The second light-emitting diode group (EDG2) may include one second red light-emitting diode (ED2r), one second blue light-emitting diode (ED2b), and one second green light-emitting diode (ED2g). Each of the second red light-emitting diode (ED2r), the second blue light-emitting diode (ED2b), and the second green light-emitting diode (ED2g) can emit red, blue, and green light, respectively.

[0154] In one embodiment, the size (or area) of the second red light-emitting diode (ED2r) may be larger than the size (or area) of the first red light-emitting diode (ED1r). The size (or area) of the second blue light-emitting diode (ED2b) may be larger than the size (or area) of the first blue light-emitting diode (ED1b). The size (or area) of the second green light-emitting diode (ED2g) may be larger than the size (or area) of the first green light-emitting diode (ED1g).

[0155] One auxiliary light-emitting diode (EDa) may be arranged between neighboring second light-emitting diode groups (EDG2) in a first direction (x direction). Similarly, one auxiliary light-emitting diode (EDa) may be arranged between neighboring second light-emitting diode groups (EDG2) in a second direction (y direction). Each of the auxiliary light-emitting diodes (EDa) may be arranged in a transmission area (TA). In other words, the second light-emitting diode groups (EDG2) and the auxiliary light-emitting diodes (EDa) may be arranged alternately in the first direction (x direction) and the second direction (y direction).

[0156] In one embodiment, the auxiliary light-emitting diode (EDa) may emit green light. For example, the auxiliary light-emitting diode (Eda) may include a green light-emitting diode. In this case, the size (or area) of the auxiliary light-emitting diode (EDa) may be substantially the same as the size (or area) of the second green light-emitting diode (ED2g). Since green light has high visibility, when the auxiliary light-emitting diode (EDa) is provided with a green light-emitting diode, the image quality of the second display area (DA2) can be further improved.

[0157] The second red light-emitting diodes (ED2r), the second blue light-emitting diodes (ED2b), the second green light-emitting diodes (ED2g), and the auxiliary light-emitting diodes (EDa) may be arranged to form a matrix in the first direction (x direction) and the second direction (y direction). The second red light-emitting diodes (ED2r) and the second blue light-emitting diodes (ED2b) may be arranged in some of the odd rows, and the second green light-emitting diodes (ED2g) and the auxiliary light-emitting diodes (EDa) may be arranged in some of the even rows.

[0158] For example, the second red light-emitting diode (ED2r) and the second blue light-emitting diode (ED2b) may be arranged alternately in the (4m-3)th rows (R1, R5, R9, R13, ...) among the odd rows, and the second green light-emitting diode (ED2g) and the auxiliary light-emitting diode (EDa) may be arranged alternately in the (4m-2)th rows (R2, R6, R10, R14, ...) among the even rows. Here, m may be a natural number greater than or equal to 1. Among the odd-numbered columns, second blue light-emitting diodes (ED2b) may be repeatedly arranged in the 4n-3rd columns (C1, C5, C9, C13, ...), and second red light-emitting diodes (ED2r) may be repeatedly arranged in the 4n-1th columns (C3, C7, C11, C15, ...) among the odd-numbered columns. Among the even-numbered columns, second green light-emitting diodes (ED2g) and auxiliary light-emitting diodes (EDa) may be alternately arranged in the (4n-2nd)th columns (C2, C6, C10, C14, ...). Here, n may be a natural number greater than or equal to 1.

[0159] In the second display area (DA2), the second green light-emitting diode (ED2g) and the auxiliary light-emitting diode (EDa) may be arranged to be spaced apart from each other at equal intervals in the first direction (x direction) and the second direction (y direction). For example, the second green light-emitting diode (ED2g) and the auxiliary light-emitting diode (EDa) adjacent in the first direction (x direction) may be spaced apart from each other by a first distance (d1) in the first direction (x direction), and the second green light-emitting diode (ED2g) and the auxiliary light-emitting diode (EDa) adjacent in the second direction (y direction) may be spaced apart from each other by a first distance (d1) in the second direction (y direction).

[0160] The first blue light-emitting diode (ED1b), the first red light-emitting diode (ED1r), the second blue light-emitting diode (ED2b), and the second red light-emitting diode (ED2r) arranged in the same row may be arranged on an imaginary straight line extending in the first direction (x direction). The first green light-emitting diode (ED1g), the second green light-emitting diode (ED2g), and the auxiliary light-emitting diode (EDa) arranged in the same row may be arranged on an imaginary straight line extending in the first direction (x direction). The first blue light-emitting diode (ED1b), the first red light-emitting diode (ED1r), and the second blue light-emitting diode (ED2b) arranged in the same column may be arranged on an imaginary straight line extending in the second direction (y direction). The first blue light-emitting diode (ED1b), the first red light-emitting diode (ED1r), and the second red light-emitting diode (ED2r) arranged in the same column may be arranged on an imaginary straight line extending in the second direction (y direction). The first green light-emitting diode (ED1g), the second green light-emitting diode (ED2g), and the auxiliary light-emitting diode (EDa) arranged in the same column may be arranged on an imaginary straight line extending in the second direction (y direction).

[0161] The first green light-emitting diode (ED1g) and the second green light-emitting diode (ED2g), which are adjacent to each other across the boundary between the first display area (DA1) and the second display area (DA2), may be spaced apart by a second distance (d2). Similarly, the first green light-emitting diode (ED1g) and the auxiliary light-emitting diode (EDa), which are adjacent to each other across the boundary between the first display area (DA1) and the second display area (DA2), may be spaced apart by a second distance (d2). Here, the second distance (d2) is about 50 μm, which may be similar to or substantially the same as the distance between the adjacent first green light-emitting diodes (ED1g) in the first display area (DA1). Therefore, the visibility of the boundary between the first display area (DA1) and the second display area (DA2) may be improved.

[0162] Since the second display area (DA2) includes a plurality of transparent areas (TA, see FIG. 1), the resolution of the second display area (DA2) may be lower than the resolution of the first display area (DA1). Embodiments of the present invention may improve the resolution of the second display area (DA2) by arranging second green light-emitting diodes (ED2g) in the non-transparent area (NTA) of the second display area (DA2) and further arranging auxiliary light-emitting diodes (EDa) in the transparent areas (TA). For example, the number of light-emitting diodes per unit area of ​​the second display area (DA2) may be 1 / 4 of the number of light-emitting diodes per unit area of ​​the first display area (DA1).

[0163] FIG. 7a is a plan view schematically illustrating a display panel according to one embodiment of the present invention, and FIG. 7b is a plan view schematically illustrating a second lower metal layer according to one embodiment of the present invention.

[0164] FIG. 7a is a drawing for explaining the arrangement of the second light-emitting diode group (EDG2) illustrated in FIG. 6, and FIG. 7b is a drawing illustrating an excerpt of the second lower metal layer (102).

[0165] Referring to FIGS. 7A and 7B together, the second display area (DA2) may include a plurality of transparent areas (TA) and a non-transparent area (NTA) outside the transparent areas (TA). A second lower metal layer (102) is disposed in the second display area (DA2), and the second lower metal layer (102) may define a plurality of first openings (102OP) overlapping the plurality of transparent areas (TA). The boundary of each of the first openings (102OP) may substantially coincide with the boundary of the corresponding transparent area (TA). In other words, the transparent area (TA) may be defined as an area through which light or sound is transmitted through the first opening (102OP). The non-transparent area (NTA) may be defined as an area in which a metal material portion (metal portion) of the second lower metal layer (102) is located. In one embodiment, the non-transparent area (NTA) may overlap a very small portion (thin portion) of the second lower metal layer (102). For example, the bridge portions (BR) or island portions (ISL) illustrated in FIG. 7b may have substantially no effect, or a relatively small effect, on the transmittance of light or sound passing through the non-transparent area (NTA).

[0166] As illustrated in FIGS. 7A and 7B, the first opening (102OP) may have an elliptical shape or a capsule shape in plan view. Here, the capsule shape refers to a shape having two semicircular round portions (RP) spaced apart from each other in the second direction (y direction) and a connecting portion (CNP) connecting the round portions (RP). At least a portion of the boundary of the first opening (102OP) may have an embossed shape. At least a portion of the boundary of the first opening (102OP), for example, the boundaries of the connecting portions (CNP), may have a structure in which convex portions (PP) are arranged adjacent to each other. The convex portions (PP) may have an approximately semicircular shape, and concave portions (CP) facing inward of the first opening (102OP) may be provided between the convex portions (PP). The concave portions (CP) may have a relatively sharp horn shape. In other embodiments, the convex portion (PP) may have various shapes, such as a semi-elliptical shape, a triangular shape, a rectangular shape, etc.

[0167] When at least a portion of the boundary of the first opening (102OP) (or the boundary of the second lower metal layer (102) defining the first opening (102OP)) includes a plurality of convex portions (PP), diffraction of light emitted from the component (40, see FIG. 2) through the first opening (102OP) or directed toward the component (40) can be reduced.

[0168] On the plane, one auxiliary light-emitting diode (EDa) may be arranged on the inner side of each of the transparent areas (TA) of the second display area (DA2) (or, in the center of the transparent areas (TA)). The auxiliary light-emitting diode (EDa) may be arranged in the center area of ​​the transparent area (TA) or in an area spaced apart from the center area by a predetermined distance in the second direction (y direction).

[0169] The second lower metal layer (102) may include island portions (ISL) overlapping each of the auxiliary light emitting diodes (EDa) and bridge portions (BR) extending from the island portions (ISL) to the boundary of the corresponding first opening (102OP). In other words, one island portion (ISL) and one bridge portion (BR) extending from the island portion (ISL) may be arranged inside each of the transmission areas (TA).

[0170] The island portion (ISL) may have a roughly circular or elliptical shape in a plane. The bridge portion (BR) may have a roughly circular arc shape in a plane. For example, the bridge portion (BR) may have a first boundary and a second boundary facing the first boundary, the first boundary may have a first radius of curvature, and the second boundary may have a second radius of curvature greater than the first radius of curvature. Since the bridge portion (BR) has a roughly circular arc shape in a plane, diffraction of light emitted from the component (40) through the first opening (102OP) or directed toward the component (40) may be reduced. In another embodiment, the bridge portion (BR) may have a linear shape.

[0171] A second light-emitting diode group (EDG2) and a subpixel circuit group (PCG) may be arranged in the non-transparent area (NTA) of the second display area (DA2). The second light-emitting diode group (EDG2) may include a second blue light-emitting diode (ED2b), a second red light-emitting diode (ED2r), and a second green light-emitting diode (ED2g) arranged in the non-transparent area (NTA). The subpixel circuit group (PCG) may include a second blue subpixel circuit (PC2b) electrically connected to a second blue light-emitting diode (ED2b), a second red subpixel circuit (PC2r) electrically connected to a second red light-emitting diode (ED2r), a second green subpixel circuit (PC2g) electrically connected to a second green light-emitting diode (ED2g), and an auxiliary subpixel circuit (PCa) electrically connected to an auxiliary light-emitting diode (EDa). Each of the second blue subpixel circuit (PC2b), the second red subpixel circuit (PC2r), the second green subpixel circuit (PC2g), and the auxiliary subpixel circuit (PCa) may include one driving thin film transistor.

[0172] Since the auxiliary light-emitting diode (EDa) is arranged in the transparent area (TA), it can be spaced apart from the auxiliary subpixel circuit (PCa) arranged in the non-transparent area (NTA). Accordingly, the auxiliary light-emitting diode (EDa) can be electrically connected to the auxiliary subpixel circuit (PCa) through a connecting wire (130). The connecting wire (130) can include a first sub-wire (131) connected to the auxiliary subpixel circuit (PCa) and a second sub-wire (133) connected to the auxiliary light-emitting diode (EDa). The first sub-wire (131) can be arranged in the non-transparent area (NTA), and the second sub-wire (133) can be arranged in the transparent area (TA). At this time, the second sub-wiring (133) is arranged to overlap with the bridge portion (BR) of the second lower metal layer (102), and may have a shape corresponding to the shape of the bridge portion (BR). In one embodiment, the second sub-wiring (133) may have an arc shape on a plane.

[0173] Although FIGS. 7a and 7b illustrate that a bridge portion (BR) overlapping the second sub-wiring (133) is included in the second lower metal layer (102), the present invention is not limited thereto. In one embodiment, the bridge portion (BR) may be formed using other conductive layers disposed under the second sub-wiring (133).

[0174] In one embodiment, the auxiliary subpixel circuit (PCa) may be omitted. For example, the subpixel circuit group (PCG) may include only a second blue subpixel circuit (PC2b), a second red subpixel circuit (PC2r), and a second green subpixel circuit (PC2g). In this case, the auxiliary light-emitting diode (EDa) may be electrically connected to the second green subpixel circuit (PC2g). For example, the first sub-wire (131) of the connection wire (130) may be connected to the second green subpixel circuit (PC2g) or to the second green light-emitting diode (ED2g). The auxiliary light-emitting diode (EDa) may emit light simultaneously with the second green light-emitting diode (ED2g) by the same scan signal and data signal.

[0175] The second green light-emitting diode (ED2g) and the auxiliary light-emitting diode (EDa) adjacent in the first direction (x direction) may be spaced apart from each other by a first distance (d1) in the first direction (x direction), and the second green light-emitting diode (ED2g) and the auxiliary light-emitting diode (EDa) adjacent in the second direction (y direction) may be spaced apart from each other by a first distance (d1) in the second direction (y direction). That is, in the second display area (DA2), the second green light-emitting diodes (ED2g) and the auxiliary light-emitting diodes (EDa) may be alternately arranged at equal intervals in the first direction (x direction) and the second direction (y direction). As the second green light-emitting diodes (ED2g) and auxiliary light-emitting diodes (EDa) that emit green light with high visibility are arranged at equal intervals in the first direction (x direction) and the second direction (y direction), the display quality of the image displayed by the second display area (DA2) can be improved.

[0176] FIG. 8a, FIG. 8b and FIG. 8c are cross-sectional views schematically illustrating a cross-section along line Ⅱ-Ⅱ' of the display panel illustrated in FIG. 7a.

[0177] Referring to FIG. 8A, the substrate (100) may include a second display area (DA2). The second display area (DA2) may include a plurality of transparent areas (TA) through which light or sound is transmitted, and a non-transparent area (NTA) outside the transparent areas (TA). A second green sub-pixel circuit (PC2g) and a second green light-emitting diode (ED2g) electrically connected to the second green sub-pixel circuit (PC2g) may be disposed in the non-transparent area (NTA). An auxiliary light-emitting diode (EDa) may be disposed in the transparent area (TA). In order to improve the transmittance of the transparent area (TA), a sub-pixel circuit may not be disposed in the transparent area (TA).

[0178] The second lower metal layer (102) may be disposed between the substrate (100) and the buffer layer (111). The second lower metal layer (102) may be disposed in the second display area (DA2) and may define a plurality of first openings (102OP) overlapping the transmission areas (TA). The second lower metal layer (102) may include an island portion (ISL) disposed inside the first opening (102OP) and overlapping the auxiliary light emitting diode (EDa), and a bridge portion (BR, see FIG. 7a) extending from the island portion (ISL).

[0179] A second green subpixel circuit (PC2g) may be arranged on the buffer layer (111). A first planarization layer (116), a second planarization layer (117), and a third planarization layer (118) may be arranged on the second green subpixel circuit (PC2g), and a second green light-emitting diode (ED2g) and an auxiliary light-emitting diode (EDa) may be arranged on the third planarization layer (118).

[0180] The second green light-emitting diode (ED2g) may include a pixel electrode (221g), a counter electrode (223), and an intermediate layer (222) interposed between the pixel electrode (221g) and the counter electrode (223). The auxiliary light-emitting diode (EDa) may include an auxiliary pixel electrode (221a), a counter electrode (223), and an intermediate layer (222) interposed between the auxiliary pixel electrode (221a) and the counter electrode (223).

[0181] The pixel electrode (221g) and the auxiliary pixel electrode (221a) of the second green light-emitting diode (ED2g) may be disposed on the third planarization layer (118). The pixel electrode (221g) of the second green light-emitting diode (ED2g) may be electrically connected to the second green subpixel circuit (PC2g) through the first 'contact electrode (CM1') disposed between the first planarization layer (116) and the second planarization layer (117) and the second 'contact electrode (CM2') disposed between the second planarization layer (117) and the third planarization layer (118).

[0182] The auxiliary pixel electrode (221a) may be electrically connected to a subpixel circuit arranged in a non-transparent area (NTA) via a connecting wire (130, see FIG. 7a). In one embodiment, a subpixel circuit group (PCG, see FIG. 7a) arranged in the non-transparent area (NTA) includes an auxiliary subpixel circuit (PCa, see FIG. 7a), and the auxiliary pixel electrode (221a) may be electrically connected to the auxiliary subpixel circuit (PCa) via the connecting wire (130). In another embodiment, the auxiliary pixel electrode (221a) may be electrically connected to a pixel electrode (221g) of a second green light-emitting diode (ED2g) adjacent to the auxiliary pixel electrode (221a), or a second green subpixel circuit (PC2g) adjacent to the auxiliary pixel electrode (221a) via the connecting wire (130).

[0183] The bank layer (119) can cover the edge of the pixel electrode (221g) of the second green light-emitting diode (ED2g). The bank layer (119) can define a second pixel opening (OP2) that exposes the central area of ​​the pixel electrode (221g) of the second green light-emitting diode (ED2g). The second pixel opening (OP2) can define the light-emitting area of ​​the second green light-emitting diode (ED2g).

[0184] The bank layer (119) defines an opening (119OP) overlapping with the transmission area (TA), and may include a first portion (119P) disposed inside the opening (119OP) on a planar surface. The opening (119OP) of the bank layer (119) overlaps with the first opening (102OP) of the second lower metal layer (102), and the first portion (119P) may overlap with the island portion (ISL) of the second lower metal layer (102). The first portion (119P) of the bank layer (119) may define an auxiliary pixel opening (OPa) that covers the edge of the auxiliary pixel electrode (221a) and exposes the central region of the auxiliary pixel electrode (221a). The auxiliary pixel opening (OPa) may define a light-emitting region of the auxiliary light-emitting diode (EDa). In one embodiment, the first portion (119P) of the bank layer (119) may have an island type shape. In another embodiment, the bank layer (119) may further include a bridge portion (not shown) extending from the first portion (119P). The bridge portion of the bank layer (119) may have a shape corresponding to the bridge portion (BR, see FIG. 7a) of the second lower metal layer (102).

[0185] An intermediate layer (222) may be arranged on the bank layer (119). The intermediate layer (222) may include a light-emitting layer (222b') of a second green light-emitting diode (ED2g) and a light-emitting layer (222b") of an auxiliary light-emitting diode (EDa). The light-emitting layer (222b') of the second green light-emitting diode (ED2g) may be arranged to overlap the pixel electrode (221g) of the second green light-emitting diode (ED2g) through the second pixel opening (OP2), and the light-emitting layer (222b") of the auxiliary light-emitting diode (EDa) may be arranged to overlap the auxiliary pixel electrode (221a) through the auxiliary pixel opening (OPa). Each of the light-emitting layer (222b') of the second green light-emitting diode (ED2g) and the light-emitting layer (222b") of the auxiliary light-emitting diode (EDa) may include a polymer or low-molecular organic material that emits green light. The intermediate layer (222) may include a first functional layer (222a) disposed below the light-emitting layers (222b', 222b") and / or a second functional layer (222c) disposed above the light-emitting layers (222b', 222b").

[0186] A counter electrode (223) may be disposed on the intermediate layer (222). The counter electrode (223) may be integrally provided to cover the pixel electrode (221g) and the auxiliary pixel electrode (221a) of the second green light-emitting diode (ED2g). A capping layer (250) may be formed on the counter electrode (223). An encapsulating layer (300) may be disposed on the capping layer (250). The encapsulating layer (300) may include a first inorganic encapsulating layer (310), an organic encapsulating layer (320), and a second inorganic encapsulating layer (330).

[0187] A color filter layer may be arranged on the encapsulating layer (300). The color filter layer may include a light-blocking layer (410), a first color filter (421) arranged corresponding to the second green light-emitting diode (ED2g), a second color filter (423) arranged corresponding to the auxiliary light-emitting diode (EDa), and a coating layer (430).

[0188] The light-shielding layer (410) can define first filter openings (OP3) overlapping with a plurality of second light-emitting diode groups (EDG2, see FIG. 7a) and second openings (410OP) overlapping with a plurality of transmissive areas (TA). Here, the fact that the first filter openings (OP3) overlap with the second light-emitting diode groups (EDG2) means that each of the first filter openings (OP3) is arranged to correspond to a second blue light-emitting diode (ED2b, see FIG. 7a), a second red light-emitting diode (ED2r, see FIG. 7a), or a second green light-emitting diode (ED2g). Similarly, each of the second openings (410OP) can be arranged to correspond to one transmissive area (TA). The first filter opening (OP3) can be arranged to overlap with the second pixel opening (OP2). The second opening (410OP) of the light-shielding layer (410) can be arranged to overlap with the first opening (102OP) of the second lower metal layer (102).

[0189] The first color filters (421) may be arranged corresponding to a plurality of second light-emitting diode groups (EDG2). Here, the fact that the first color filters (421) are arranged corresponding to a plurality of second light-emitting diode groups (EDG2) means that the first color filters (421) include red color filters, blue color filters, and green color filters, and the red color filters are arranged corresponding to each of the second red light-emitting diodes (ED2r), the blue color filters are arranged corresponding to each of the second blue light-emitting diodes (ED2b), and the green color filters are arranged corresponding to each of the second green light-emitting diodes (ED2g).

[0190] In this regard, FIG. 8a illustrates that the first color filter (421) is arranged to correspond to the second green light-emitting diode (ED2g). The first color filter (421) may be arranged to overlap the first filter opening (OP3) of the light-shielding layer (410). The second color filter (423) may be arranged to correspond to the auxiliary light-emitting diode (EDa). Since the second color filter (423) is arranged inside the second opening (410OP) of the light-shielding layer (410), the light-shielding layer (410) may not be arranged between the second inorganic sealing layer (330) and the second color filter (423). Since the light-shielding layer (410) does not overlap with the transmission area (TA), the light transmittance of the transmission area (TA) may be improved.

[0191] Each of the first color filter (421) and the second color filter (423) may be a layer that selectively passes only light having a wavelength within a predetermined range. For example, each of the first color filter (421) and the second color filter (423) may be a layer that selectively passes only light having a wavelength within a range of about 495 nm to about 570 nm. Each of the first color filter (421) and the second color filter (423) may increase the color purity of light emitted to the outside, thereby improving the quality of the displayed image. A coating layer (430) may be disposed on the first color filter (421) and the second color filter (423).

[0192] Referring to FIG. 8b, the light-shielding layer (410) can define first filter openings (OP3) overlapping with a plurality of second light-emitting diode groups (EDG2, see FIG. 7a) and second openings (410OP) overlapping with a plurality of transmission areas (TA). At this time, the light-shielding layer (410) further includes second portions (410P) positioned within the second openings (410OP), and each of the second portions (410P) can define a second filter opening (OP3') overlapping with an auxiliary light-emitting diode (EDa) positioned therebelow.

[0193] The first color filters (421) may be arranged to correspond to a plurality of second light-emitting diode groups (EDG2). In this regard, FIG. 8b illustrates that the first color filter (421) is arranged to correspond to the second green light-emitting diode (ED2g). The first color filter (421) may be arranged to overlap the first filter opening (OP3) of the light-shielding layer (410). The second color filter (423) may be arranged to correspond to the auxiliary light-emitting diode (EDa). The second color filter (423) may be arranged to overlap the second filter opening (OP3') of the second portion (410P) of the light-shielding layer (410).

[0194] The second part (410P) of the light-shielding layer (410) can reduce external light reflection by lowering the rate at which external light incident on the display panel (10) is reflected from a component under the second part (410P), such as an auxiliary light-emitting diode (EDa), and then re-emitted to the outside.

[0195] Referring to FIG. 8c, the light-shielding layer (410) can define first filter openings (OP3) overlapping with a plurality of second light-emitting diode groups (EDG2, see FIG. 7a) and second filter openings (OP3') overlapping with a plurality of auxiliary light-emitting diodes (EDa). The light-shielding layer (410) can cover a transmission area (TA). For example, when the component (40, see FIG. 2) is an infrared sensor, the light-shielding layer (410) can be formed to cover the transmission area (TA) outside the second filter opening (OP3') using a black matrix material having high infrared transmittance. In this case, the light-shielding layer (410) can include a black matrix material that selectively transmits only light having a wavelength within a predetermined range. For example, the light-shielding layer (410) may be a black matrix material containing a lactam series pigment, and may be a material having a transmittance of about 90% or more for infrared rays having a wavelength of about 940 nm. The light-shielding layer (410) transmits infrared rays emitted from the component (40) or directed toward the component (40), but reduces external light reflection by lowering the rate at which visible light incident on the display panel (10) is reflected by the component below the light-shielding layer (410) and then re-emitted to the outside. Light emitted by the auxiliary light-emitting diode (EDa) may be emitted through the second filter opening (OP3') of the light-shielding layer (410).

[0196] FIG. 9 is a cross-sectional view schematically illustrating a display panel according to one embodiment of the present invention.

[0197] The display panel illustrated in FIG. 9 is similar to the display panels illustrated in FIGS. 8A to 8C, but differs in that each of the second planarization layer (117) and the third planarization layer (118) defines openings (117OP, 118OP) that overlap with a plurality of transmission areas (TA). For convenience of explanation, FIG. 9 omits the illustration of the color filter layer. Hereinafter, descriptions of identical or similar components will be omitted, and differences will be described.

[0198] Referring to FIG. 9, the second planarization layer (117) can define openings (117OP) that overlap a plurality of transmission areas (TA) in a one-to-one manner, and the third planarization layer (118) can define openings (118OP) that overlap a plurality of transmission areas (TA) in a one-to-one manner. Each of the openings (117OP) of the second planarization layer (117) and the openings (118OP) of the third planarization layer (118) can overlap a first opening (102OP) of the second lower metal layer (102) and an opening (119OP) of the bank layer (119). When the opening (117OP) of the second planarization layer (117) and the opening (118OP) of the third planarization layer (118) are arranged in the transmission area (TA), the light transmittance of the transmission area (TA) can be improved.

[0199] The auxiliary light-emitting diode (EDa) may be arranged inside the opening (117OP) of the second planarization layer (117) and the opening (118OP) of the third planarization layer (118). That is, the auxiliary pixel electrode (221a) of the auxiliary light-emitting diode (EDa) may be arranged on the first planarization layer (116). The pixel electrode (221g) of the second green light-emitting diode (ED2g) and the auxiliary pixel electrode (221a) of the auxiliary light-emitting diode (EDa) may be arranged at different heights from the upper surface of the substrate (100).

[0200] A first portion (119P) of the bank layer (119) may be disposed on the first planarization layer (116) so as to cover an edge of an auxiliary pixel electrode (221a) of an auxiliary light-emitting diode (EDa). The first portion (119P) of the bank layer (119) may define an auxiliary pixel opening (OPa) that exposes a central region of the auxiliary light-emitting diode (EDa).

[0201] Although FIG. 9 illustrates that the second planarization layer (117) and the third planarization layer (118) have openings (117OP, 118OP) overlapping the transmission area (TA), the present invention is not limited thereto. In one embodiment, only one of the second planarization layer (117) and the third planarization layer (118) may define an opening overlapping the transmission area (TA). In another embodiment, the first planarization layer (116) may define an opening overlapping the transmission area (TA), and the second planarization layer (117) or the third planarization layer (118) may be formed to cover the transmission area (TA).

[0202] To seal the auxiliary light-emitting diode (EDa) and the second green light-emitting diode (ED2g), an encapsulating layer (300) may be disposed on the auxiliary light-emitting diode (EDa) and the second green light-emitting diode (ED2g). A color filter layer described with reference to FIGS. 8A to 8C may be disposed on the encapsulating layer (300).

[0203] FIG. 10 is a plan view schematically illustrating a display panel according to one embodiment of the present invention.

[0204] Referring to FIG. 10, the second display area (DA2) may include a plurality of transparent areas (TA) and a non-transparent area (NTA) outside the transparent areas (TA). The non-transparent area (NTA) may include a plurality of first areas (1A) in which subpixel circuit groups (PCG) are arranged, and a second area (2A) outside the first areas (1A).

[0205] A second lower metal layer (102) is disposed in the second display area (DA2), and the second lower metal layer (102) can define a plurality of first openings (102OP) that overlap a plurality of transmission areas (TA) in a one-to-one manner. Each of the first openings (102OP) of the second lower metal layer (102) can have a circular shape in a plane. Alternatively, each of the first openings (102OP) of the second lower metal layer (102) can have an oval shape or a capsule shape in a plane. A portion of the boundary of each of the first openings (102OP) of the second lower metal layer (102) can include a plurality of convex portions (PP, see FIG. 7b).

[0206] Four neighboring first apertures (102OP) can be arranged at the four corners of a virtual rhombus shape centered on a point of a non-transparent area (NTA). A subpixel circuit group (PCG) can be arranged at the center of the virtual rhombus shape. That is, one first area (1A) can be arranged between the four transmissive areas (TA) defined by the four neighboring first apertures (102OP).

[0207] The subpixel circuit group (PCG) may include a second blue subpixel circuit (PC2b), a second red subpixel circuit (PC2r), and a second green subpixel circuit (PC2g). At least one second light-emitting diode group (EDG2) may be arranged in each of the first regions (1A) of the non-transparent region (NTA). Each of the second light-emitting diode groups (EDG2) may include second red light-emitting diodes (ED2r), second blue light-emitting diodes (ED2b), and second green light-emitting diodes (ED2g).

[0208] The second green light-emitting diodes (ED2g) may include a second-first green light-emitting diode (ED2g_1), a second-second green light-emitting diode (ED2g_2), and a second-third green light-emitting diode (ED2g_3). The second-first green light-emitting diode (ED2g_1) may be arranged approximately at the center of the first region (1A). The second-second green light-emitting diode (ED2g_2) and the second-third green light-emitting diode (ED2g_3) may be arranged in the second region (2A) of the non-transparent region (NTA). The second-second green light-emitting diode (ED2g_2) may be arranged in the second region (2A) between the upper (+y direction) transparent region (TA) and the left (-x direction) transparent region (TA) among the four transparent regions (TA) surrounding the first region (1A). The second-third green light-emitting diode (ED2g_3) can be placed in the second region (2A) between the upper (+y direction) transmission region (TA) and the right (+x direction) transmission region (TA) among the four transmission regions (TA) surrounding the first region (1A).

[0209] The second green light-emitting diodes (ED2g) may be electrically connected to the second green subpixel circuit (PC2g). The second-first green light-emitting diode (ED2g_1) may be arranged to overlap the subpixel circuit group (PCG), and the second-second green light-emitting diodes (ED2g_2) and the second-third green light-emitting diodes (ED2g_3) may be arranged to be spaced apart from the subpixel circuit group (PCG) on a plane. The second-first green light-emitting diode (ED2g_1) may be electrically connected to the second green subpixel circuit (PC2g). The pixel electrode (221c1) of the 2nd-2nd green light-emitting diode (ED2g_2) and the pixel electrode (221c2) of the 2nd-3rd green light-emitting diode (ED2g_3) can be electrically connected to the pixel electrode (221g) of the 2nd green subpixel circuit (PC2g) or the 2nd-1st green light-emitting diode (ED2g_1) through the first sub-wiring (131).

[0210] For example, the pixel electrodes (221c1, 221c2) of the second-second green light-emitting diode (ED2g_2) and the second-third green light-emitting diode (ED2g_3) may be electrically connected to the pixel electrode (221g) of the second-first green light-emitting diode (ED2g_1) or the second green subpixel circuit (PC2g) via the first sub-wiring (131). The display panel (10) may further arrange the second-second green light-emitting diode (ED2g_2) and the second-third green light-emitting diode (ED2g_3) in the second area (2A) between the transparent areas (TA) to improve the resolution of the second display area (DA2).

[0211] The second blue light-emitting diodes (ED2b) may include a second-first blue light-emitting diode (ED2b_1), a second-second blue light-emitting diode (ED2b_2), a second-third blue light-emitting diode (ED2b_3), and a second-fourth blue light-emitting diode (ED2b_4). Each of the second-first blue light-emitting diode (ED2b_1), the second-second blue light-emitting diode (ED2b_2), the second-third blue light-emitting diode (ED2b_3), and the second-fourth blue light-emitting diode (ED2b_4) may be arranged at four corners of an imaginary rhombus centered on the second-first green light-emitting diode (ED2g_1). The second-first blue light-emitting diode (ED2b_1), the second-second blue light-emitting diode (ED2b_2), the second-third blue light-emitting diode (ED2b_3), and the second-fourth blue light-emitting diode (ED2b_4) may be electrically connected to the second blue subpixel circuit (PC2b). In one embodiment, the pixel electrodes (221b) of each of the second-first blue light-emitting diode (ED2b_1), the second-second blue light-emitting diode (ED2b_2), the second-third blue light-emitting diode (ED2b_3), and the second-fourth blue light-emitting diode (ED2b_4) may be electrically connected through connecting wires surrounding the second-first green light-emitting diode (ED2g_1).

[0212] The second red light-emitting diodes (ED2r) may include a second-first red light-emitting diode (ED2r_1), a second-second red light-emitting diode (ED2r_2), a second-third red light-emitting diode (ED2r_3), and a second-fourth red light-emitting diode (ED2r_4). Each of the second-first red light-emitting diode (ED2r_1), the second-second red light-emitting diode (ED2r_2), the second-third red light-emitting diode (ED2r_3), and the second-fourth red light-emitting diode (ED2r_4) may be arranged at four corners of an imaginary square centered on the second-first green light-emitting diode (ED2g_1). The second-first red light-emitting diode (ED2r_1), the second-second red light-emitting diode (ED2r_2), the second-third red light-emitting diode (ED2r_3), and the second-fourth red light-emitting diode (ED2r_4) may be electrically connected to the second red subpixel circuit (PC2r). In one embodiment, the pixel electrodes (221r) of each of the second-first red light-emitting diode (ED2r_1), the second-second red light-emitting diode (ED2r_2), the second-third red light-emitting diode (ED2r_3), and the second-fourth red light-emitting diode (ED2r_4) may be electrically connected through connecting wires surrounding the second blue light-emitting diodes (ED2b). By connecting light emitting diodes that emit light of the same color to a single subpixel circuit, the area of ​​the non-transparent area (NTA) in the second display area (DA2) can be reduced, thereby improving the resolution of the second display area (DA2) while maintaining or further improving the light or sound transmittance.

[0213] Each of the transmitting areas (TA) on a plane may have one auxiliary light-emitting diode (EDa) disposed inside. The auxiliary light-emitting diode (EDa) may be disposed in the center region of the transmitting area (TA). The second-first green light-emitting diode (ED2g_1) and the auxiliary light-emitting diode (EDa) adjacent in the first direction (x direction) may be spaced apart from each other by a first distance (d1) in the first direction (x direction). Similarly, the second-first green light-emitting diode (ED2g_1) and the auxiliary light-emitting diode (EDa) adjacent in the second direction (y direction) may be spaced apart from each other by a first distance (d1) in the second direction (y direction). In other words, the second-first green light-emitting diodes (ED2g_1) and the auxiliary light-emitting diodes (EDa) may be alternately disposed at equal intervals in the first direction (x direction) and the second direction (y direction).

[0214] The second lower metal layer (102) may include island portions (ISL) overlapping each of the auxiliary light emitting diodes (EDa) and bridge portions (BR) extending from the island portions (ISL) to the boundary of the corresponding first opening (102OP). In other words, one island portion (ISL) and one bridge portion (BR) extending from the island portion (ISL) may be arranged inside each of the transmission areas (TA).

[0215] Each island portion (ISL) may have a roughly circular or elliptical shape in a plan view. Each bridge portion (BR) may have a roughly circular arc shape in a plan view. Since the bridge portion (BR) has a roughly circular arc shape in a plan view, diffraction of light emitted from the component (40, see FIG. 2) through the first opening (102OP) or directed toward the component (40) may be reduced. In another embodiment, each bridge portion (BR) may have a linear shape.

[0216] The bank layer (119, see FIG. 8a) can define an opening (119OP) that overlaps the first opening (102OP) of the second lower metal layer (102). In one embodiment, as illustrated in FIG. 10, the boundary of the opening (119OP) of the bank layer (119) can be disposed outside the boundary of the first opening (102OP) of the second lower metal layer (102), but the present invention is not limited thereto. The boundary of the opening (119OP) of the bank layer (119) can be disposed inside the boundary of the first opening (102OP) of the second lower metal layer (102), or can be disposed to substantially coincide with the boundary of the first opening (102OP). When the boundary of the opening (119OP) of the bank layer (119) is located outside the boundary of the first opening (102OP) of the second lower metal layer (102), the light transmittance of the transmission area (TA) can be improved. When the boundary of the opening (119OP) of the bank layer (119) is located inside the boundary of the first opening (102OP) of the second lower metal layer (102), the external light reflectance of the transmission area (TA) can be reduced.

[0217] The bank layer (119) may include a first portion (119P, see FIG. 8a) that is disposed inside the opening (119OP) of the bank layer (119) and overlaps with an island portion (ISL) of the second lower metal layer (102). In one embodiment, the bank layer (119) may further include a bridge portion that overlaps with a bridge portion (BR) of the second lower metal layer (102).

[0218] The auxiliary light-emitting diode (EDa) can be electrically connected to the second green sub-pixel circuit (PC2g) via a connecting wire (130). The connecting wire (130) can include a first sub-wire (131) and a second sub-wire (133). The first sub-wire (131) can electrically connect the pixel electrode (221g) of the second green sub-pixel circuit (PC2g) or the second-first green light-emitting diode (ED2g_1) and the pixel electrode (221c1) of the second-second green light-emitting diode (ED2g_2). The second sub-wire (133) can connect the auxiliary pixel electrode (221a) of the auxiliary light-emitting diode (EDa) and the pixel electrode (221c1) of the second-second green light-emitting diode (ED2g_2).

[0219] FIG. 11a and FIG. 11b are drawings for explaining the arrangement of a bridge portion and an island portion according to one embodiment of the present invention, and FIG. 12 is a drawing for explaining the shape of the bridge portion and the island portion.

[0220] Referring to FIGS. 11A, 11B, and 12 together, the second display area (DA2) may include a plurality of transparent areas (TA) and a non-transparent area (NTA) outside the transparent areas (TA). Each transparent area (TA) may be surrounded by the non-transparent area (NTA). A second lower metal layer (102) is disposed in the second display area (DA2), and the second lower metal layer (102) may define a plurality of first openings (102OP) overlapping the plurality of transparent areas (TA). The boundary of each of the first openings (102OP) may substantially coincide with the boundary of the corresponding transparent area (TA). In other words, the transparent area (TA) may be defined as an area through which light or sound transmits through the first opening (102OP). The non-transparent area (NTA) can be defined as the area where the metal material portion (metal portion) of the second lower metal layer (102) is located.

[0221] The first openings (102OP) may include a first-first opening (102OP1), a first-second opening (102OP2), a first-third opening (102OP3), and a first-fourth opening (102OP4) arranged to surround a point (P) of a non-transparent area (NTA). For example, the first opening (102OP) positioned on the lower side (-y direction) with respect to a point (P) of the non-transparent area (NTA) may be defined as the 1-1st opening (102OP1), the first opening (102OP) positioned on the left side (-x direction) may be defined as the 1-2nd opening (102OP2), the first opening (102OP) positioned on the upper side (+y direction) may be defined as the 1-3rd opening (102OP3), and the first opening (102OP) positioned on the right side (+x direction) may be defined as the 1-4th opening (102OP4).

[0222] Each of the first openings (102OP) of the second lower metal layer (102) may have a roughly circular or elliptical shape on a plane. In one embodiment, each of the first openings (102OP) may have a shape of two semicircles spread apart at a first angle (θ1) on a plane.

[0223] The second lower metal layer (102) may include island portions (ISLs) and bridge portions (BRs). For example, one island portion (ISL) and one bridge portion (BR) extending from the island portion (ISL) to the non-transparent area (NTA) may be arranged inside each of the first openings (102OP) of the second lower metal layer (102).

[0224] Each of the island portions (ISLs) may have a roughly circular or elliptical shape in a plane. In one embodiment, as illustrated in FIG. 12, each of the island portions (ISLs) may have a shape of two semicircles spread apart at a second angle (θ2) in a plane.

[0225] Each of the bridge portions (BR) may have an approximately circular arc shape on a plane. For example, the bridge portions (BR) may have an circular arc shape extending along a portion of an imaginary circle (VR). As illustrated in FIG. 12, each of the bridge portions (BR) may have a first boundary and a second boundary facing each other, the first boundary having a first radius of curvature (r1), and the second boundary having a second radius of curvature (r2). In other words, the first boundary of the bridge portion (BR) may extend along a portion of an imaginary first circle (R1) having a first radius of curvature (r1), and the second boundary may extend along a portion of an imaginary second circle (R2) having a second radius of curvature (r2). Although FIG. 12 illustrates that the imaginary first circle (R1) and the imaginary second circle (R2) are concentric circles, the present invention is not limited thereto. The center of the virtual first circle (R1) and the center of the virtual second circle (R2) can be separated from each other.

[0226] In one embodiment, as illustrated in FIG. 11a, each of the bridge portions (BR) arranged in the first-first opening (102OP1), the first-second opening (102OP2), the first-third opening (102OP3), and the first-fourth opening (102OP4) may have the same shape on a plane.

[0227] In another embodiment, as illustrated in FIG. 11b, each of the bridge portions (BR) arranged in the first-first opening (102OP1), the first-second opening (102OP2), the first-third opening (102OP3), and the first-fourth opening (102OP4) may have a corresponding shape among four arcs that divide an imaginary circle (VR) into four equal parts. For example, the bridge part (BR) arranged in the 1-1 opening (102OP1) may have a shape corresponding to an arc of the first quadrant of an imaginary circle (VR), the bridge part (BR) arranged in the 1-2 opening (102OP2) may have a shape corresponding to an arc of the second quadrant of an imaginary circle (VR), the bridge part (BR) arranged in the 1-3 opening (102OP3) may have a shape corresponding to an arc of the third quadrant of an imaginary circle (VR), and the bridge part (BR) arranged in the 1-4 opening (102OP4) may have a shape corresponding to an arc of the fourth quadrant of an imaginary circle (VR). By connecting the bridge portions (BR) arranged in the 1-1 opening (102OP1), the 1-2 opening (102OP2), the 1-3 opening (102OP3), and the 1-4 opening (102OP4), a substantially circular shape can be formed. In this way, by arranging the shapes of the bridge portions (BR) to rotate according to a certain cycle, diffraction of light passing through the transmission area (TA) can be reduced.

[0228] FIG. 13 is a plan view schematically illustrating a display panel according to one embodiment of the present invention.

[0229] Referring to FIG. 13, the display panel (10) may include a first display area (DA1) and a second display area (DA2). In the first display area (DA1), a plurality of first light-emitting diode groups (EDG1) may be repeatedly arranged in a first direction (x direction) and a second direction (y direction). The first light-emitting diode group (EDG1) may be a repeating unit of the first light-emitting diodes (ED1) described with reference to FIG. 5. The first light-emitting diode group (EDG1) may include one first red light-emitting diode (ED1r), one first blue light-emitting diode (ED1b), and two first green light-emitting diodes (ED1g). Each of the first red light-emitting diode (ED1r), the first blue light-emitting diode (ED1b), and the first green light-emitting diode (ED1g) can emit red, blue, and green light, respectively.

[0230] In the first display area (DA1), first blue light-emitting diodes (ED1b), first red light-emitting diodes (ED1r), and first green light-emitting diodes (ED1g) may be arranged in a matrix in a first direction (x direction) and a second direction (y direction). In odd rows, first blue light-emitting diodes (ED1b) and first red light-emitting diodes (ED1r) may be arranged alternately, and in even rows, first green light-emitting diodes (ED1g) may be arranged repeatedly. In odd columns, first blue light-emitting diodes (ED1b) and first red light-emitting diodes (ED1r) may be arranged alternately, and in even columns, first green light-emitting diodes (ED1g) may be arranged repeatedly. In other words, in the first display area (DA1), the first blue light-emitting diodes (ED1b), the first red light-emitting diodes (ED1r), and the first green light-emitting diodes (ED1g) are arranged in a pentile pattern. TM The structure can be arranged in a manner that the size (or area) of the first green light-emitting diode (ED1g) can be smaller than the size (or area) of the first red light-emitting diode (ED1r) and the size (or area) of the first blue light-emitting diode (ED1b).

[0231] A plurality of second light-emitting diode groups (EDG2) may be repeatedly arranged in a first direction (x direction) and a second direction (y direction) in a second display area (DA2). The second light-emitting diode groups (EDG2) may be repeating units of the second light-emitting diodes (ED2) described with reference to FIG. 5. The second light-emitting diode groups (EDG2) may be arranged in a non-transparent area (NTA) of the second display area (DA2, see FIG. 2). One transparent area (TA) may be arranged between neighboring second light-emitting diode groups (EDG2) in the first direction (x direction). In other words, the second light-emitting diode groups (EDG2) and the transparent areas (TA) may be alternately arranged in the first direction (x direction). Similarly, a single transparent area (TA) may be arranged between neighboring second light-emitting diode groups (EDG2) in the second direction (y direction). That is, the second light-emitting diode groups (EDG2) and the transparent areas (TA) may be arranged alternately in the second direction (y direction).

[0232] The second light-emitting diode group (EDG2) may include a second-first blue light-emitting diode (ED2b_1), a second-second blue light-emitting diode (ED2b_2), a second-first red light-emitting diode (ED2r_1), a second-second red light-emitting diode (ED2r_2), a second-first green light-emitting diode (ED2g_1), and a second-second green light-emitting diode (ED2g_2). The second-first blue light-emitting diode (ED2b_1) and the second-second blue light-emitting diode (ED2b_2) may be electrically connected to the same sub-pixel circuit via a connecting wire. The second-first red light-emitting diode (ED2r_1) and the second-second red light-emitting diode (ED2r_2) may be electrically connected to the same sub-pixel circuit via a connecting wire. The second-first green light-emitting diode (ED2g_1) and the second-second green light-emitting diode (ED2g_2) can be electrically connected to the same sub-pixel circuit via a connecting wire. By connecting light-emitting diodes that emit light of the same color to one sub-pixel circuit, the area of ​​the non-transparent area (NTA) in the second display area (DA2) can be reduced. Accordingly, the resolution of the second display area (DA2) can be improved while maintaining or improving the light or sound transmittance.

[0233] The 2-1 green light-emitting diodes (ED2g_1) and the 2-2 green light-emitting diodes (ED2g_2) can be arranged to be equally spaced apart in the first direction (x direction) and the second direction (y direction). The 2-1 green light-emitting diodes (ED2g_1) and the 2-2 green light-emitting diodes (ED2g_2) adjacent in the first direction (x direction) can be spaced apart by a first distance (d1), and the 2-1 green light-emitting diodes (ED2g_1) or the 2-2 green light-emitting diodes (ED2g_2) adjacent in the second direction (y direction) can be spaced apart by a first distance (d1).

[0234] In one embodiment, the size (or area) of each of the second-first red light-emitting diode (ED2r_1) and the second-second red light-emitting diode (ED2r_2) may be equal to or greater than the size (or area) of the first red light-emitting diode (ED1r). The size (or area) of each of the second-first blue light-emitting diode (ED2b_1) and the second-second blue light-emitting diode (ED2b_2) may be equal to or greater than the size (or area) of the first blue light-emitting diode (ED1b). The size (or area) of each of the second-first green light-emitting diode (ED2g_1) and the second-second green light-emitting diode (ED2g_2) may be equal to or greater than the size (or area) of the first green light-emitting diode (ED1g).

[0235] Since the second display area (DA2) includes a plurality of transparent areas (TA, see FIG. 1), the resolution of the second display area (DA2) may be lower than the resolution of the first display area (DA1). Embodiments of the present invention can improve the resolution of the second display area (DA2) by electrically connecting two or more second light-emitting diodes (ED2) to the same subpixel circuit. For example, the number of light-emitting diodes per unit area of ​​the second display area (DA2) may be 6 / 16 of the number of light-emitting diodes per unit area of ​​the first display area (DA1).

[0236] Fig. 14 is a plan view schematically illustrating a display panel according to one embodiment of the present invention. Fig. 14 is a drawing for explaining the arrangement of the second light-emitting diode group (EDG2) illustrated in Fig. 13.

[0237] Referring to Fig. 14, the second display area (DA2) may include a plurality of transparent areas (TA) and a non-transparent area (NTA) outside the transparent areas (TA). The non-transparent area (NTA) may include a plurality of first areas (1A) in which subpixel circuit groups (PCG) are arranged, and a second area (2A) outside the first areas (1A). One first area (1A) may be surrounded by four transparent areas (TA).

[0238] A second lower metal layer (102) is disposed in the second display area (DA2), and the second lower metal layer (102) can define a plurality of first openings (102OP) that overlap a plurality of transmission areas (TA) in a one-to-one manner. Each of the first openings (102OP) of the second lower metal layer (102) can have a circular shape in a plane. Alternatively, each of the first openings (102OP) of the second lower metal layer (102) can have an oval shape or a capsule shape in a plane. A portion of the boundary of each of the first openings (102OP) of the second lower metal layer (102) can include a plurality of convex portions (PP, see FIG. 7b).

[0239] Each of the subpixel circuit groups (PCG) may be arranged in a first region (1A) of the non-transparent region (NTA). Each of the subpixel circuit groups (PCG) may include a second blue subpixel circuit (PC2b), a second red subpixel circuit (PC2r), and a second green subpixel circuit (PC2g).

[0240] Each of the second light-emitting diode groups (EDG2) may be arranged in a non-transparent area (NTA). Each of the second light-emitting diode groups (EDG2) may include a second-first blue light-emitting diode (ED2b_1), a second-second blue light-emitting diode (ED2b_2), a second-first red light-emitting diode (ED2r_1), a second-second red light-emitting diode (ED2r_2), a second-first green light-emitting diode (ED2g_1), and a second-second green light-emitting diode (ED2g_2). Each of the second light-emitting diode groups (EDG2) may include second-first light-emitting diodes arranged in a first region (1A) and second-second light-emitting diodes arranged in a second region (2A).

[0241] For example, the 2-1 blue light-emitting diode (ED2b_1), the 2-2 blue light-emitting diode (ED2b_2), the 2-1 red light-emitting diode (ED2r_1), and the 2-2 red light-emitting diode (ED2r_2) may be defined as the 2-1 light-emitting diodes arranged in the 1st region (1A), and the 2-1 green light-emitting diode (ED2g_1) and the 2-2 green light-emitting diode (ED2g_2) may be defined as the 2-2 light-emitting diodes arranged in the 2nd region (2A). In one embodiment, the second-first blue light-emitting diode (ED2b_1), the second-second blue light-emitting diode (ED2b_2), the second-first red light-emitting diode (ED2r_1), and the second-second red light-emitting diode (ED2r_2) may be arranged to overlap with the subpixel circuit group (PCG), and the second-first green light-emitting diode (ED2g_1) and the second-second green light-emitting diode (ED2g_2) may be arranged to be spaced apart from the subpixel circuit group (PCG).

[0242] The second-first blue light-emitting diode (ED2b_1) and the second-second blue light-emitting diode (ED2b_2) can be electrically connected to the second blue sub-pixel circuit (PC2b). The second-second blue light-emitting diode (ED2b_2) is arranged to be spaced apart from the second blue sub-pixel circuit (PC2b), but can be electrically connected to the second blue sub-pixel circuit (PC2b) through the first connection wire (141). The second-first red light-emitting diode (ED2r_1) and the second-second red light-emitting diode (ED2r_2) can be electrically connected to the second red sub-pixel circuit (PC2r). The second-second red light-emitting diode (ED2r_2) is arranged spaced apart from the second red sub-pixel circuit (PC2r), but can be electrically connected to the second red sub-pixel circuit (PC2r) through the second connecting wire (142).

[0243] In one embodiment, each of the first regions (1A) of the non-transparent region (NTA) may be surrounded by four transmissive regions (TA) on a plane. The second-second light-emitting diodes may be arranged in the second region (2A) of the non-transmissive region (NTA), and each of the second-second light-emitting diodes may be arranged one by one between two adjacent transmissive regions (TA) among the four transmissive regions (TA).

[0244] For example, the second lower metal layer (102) may have a first-first opening (102OP1) disposed on the upper side (+y direction) of the first region (1A), a first-second opening (102OP2) disposed on the left side (-x direction), a first-third opening (102OP3) disposed on the lower side (-y direction), and a first-fourth opening (102OP4) disposed on the right side (+x direction). The second-first green light-emitting diode (ED2g_1) may be disposed between the first-first opening (102OP1) of the second lower metal layer (102) and the first-second opening (102OP2) of the second lower metal layer (102). The second-second green light-emitting diode (ED2g_2) can be arranged between the first-second opening (102OP2) and the first-third opening (102OP3) of the second lower metal layer (102). Accordingly, one transmission area (TA) (or first opening (102OP)) can be surrounded by four 2-2 light-emitting diodes.

[0245] The second-first green light-emitting diode (ED2g_1) and the second-second green light-emitting diode (ED2g_2) can be electrically connected to the second green sub-pixel circuit (PC2g). The second-first green light-emitting diode (ED2g_1) and the second-second green light-emitting diode (ED2g_2) are arranged to be spaced apart from the sub-pixel circuit group (PCG), but can be electrically connected to the second green sub-pixel circuit (PC2g) through the third connecting wire (143).

[0246] In one embodiment, each of the second-first blue light-emitting diode (ED2b_1), the second-second blue light-emitting diode (ED2b_2), the second-first red light-emitting diode (ED2r_1), and the second-second red light-emitting diode (ED2r_2) may have a circular shape in a plane. Each of the second-first green light-emitting diode (ED2g_1) and the second-second green light-emitting diode (ED2g_2) may have a rectangular shape whose length is long along a direction intersecting the first direction (x direction) and the second direction (y direction) in a plane. However, the present invention is not limited thereto, and each of the second-first blue light-emitting diode (ED2b_1), the second-second blue light-emitting diode (ED2b_2), the second-first red light-emitting diode (ED2r_1), the second-second red light-emitting diode (ED2r_2), the second-first green light-emitting diode (ED2g_1), and the second-second green light-emitting diode (ED2g_2) may have various shapes such as an oval, a polygon, and an irregular shape on a plane.

[0247] FIG. 15 is a plan view schematically illustrating a display panel according to one embodiment of the present invention.

[0248] The display panel (10) illustrated in FIG. 15 is similar to the display panel (10) illustrated in FIG. 14, but differs in that the subpixel circuit group (PCG) includes a second blue subpixel circuit (PC2b), a second red subpixel circuit (PC2r), a second-first green subpixel circuit (PC2g_1), and a second-second green subpixel circuit (PC2g_2), and the second light-emitting diode group (EDG2) further includes a second-first green light-emitting diode (ED2g_1) arranged in the first region (1A). Hereinafter, descriptions of identical or similar components will be omitted, and descriptions will be made focusing on the differences.

[0249] Referring to Fig. 15, each of the subpixel circuit groups (PCG) may be arranged in the first region (1A) of the non-transparent region (NTA). Each of the subpixel circuit groups (PCG) may include a second blue subpixel circuit (PC2b), a second red subpixel circuit (PC2r), a second-first green subpixel circuit (PC2g_1), and a second-second green subpixel circuit (PC2g_2).

[0250] Each of the second light-emitting diode groups (EDG2) may be arranged in a non-transparent area (NTA). Each of the second light-emitting diode groups (EDG2) may include a second-first blue light-emitting diode (ED2b_1), a second-second blue light-emitting diode (ED2b_2), a second-first red light-emitting diode (ED2r_1), a second-second red light-emitting diode (ED2r_2), a second-first green light-emitting diode (ED2g_1), a second-second green light-emitting diode (ED2g_2), and a second-third green light-emitting diode (ED2g_3). Each of the second light-emitting diode groups (EDG2) may include the second-first light-emitting diodes arranged in the first region (1A) and the second-second light-emitting diodes arranged in the second region (2A).

[0251] For example, the 2-1 blue light-emitting diode (ED2b_1), the 2-2 blue light-emitting diode (ED2b_2), the 2-1 red light-emitting diode (ED2r_1), the 2-2 red light-emitting diode (ED2r_2), and the 2-1 green light-emitting diode (ED2g_1) may be defined as the 2-1 light-emitting diodes arranged in the 1st region (1A), and the 2-2 green light-emitting diode (ED2g_2) and the 2-3 green light-emitting diode (ED2g_3) may be defined as the 2-2 light-emitting diodes arranged in the 2nd region (2A). In one embodiment, the second-first blue light-emitting diode (ED2b_1), the second-second blue light-emitting diode (ED2b_2), the second-first red light-emitting diode (ED2r_1), the second-second red light-emitting diode (ED2r_2), and the second-first green light-emitting diode (ED2g_1) may be arranged to overlap with the subpixel circuit group (PCG), and the second-second green light-emitting diode (ED2g_2) and the second-third green light-emitting diode (ED2g_3) may be arranged to be spaced apart from the subpixel circuit group (PCG).

[0252] The second-first blue light-emitting diode (ED2b_1) and the second-second blue light-emitting diode (ED2b_2) can be electrically connected to the second blue sub-pixel circuit (PC2b). The second-second blue light-emitting diode (ED2b_2) is arranged to be spaced apart from the second blue sub-pixel circuit (PC2b), but can be electrically connected to the second blue sub-pixel circuit (PC2b) through the first connection wire (141). The second-first red light-emitting diode (ED2r_1) and the second-second red light-emitting diode (ED2r_2) can be electrically connected to the second red sub-pixel circuit (PC2r). The second-second red light-emitting diode (ED2r_2) is arranged to be spaced apart from the second red sub-pixel circuit (PC2r), but can be electrically connected to the second red sub-pixel circuit (PC2r) through the second connecting wire (142). The second-first green light-emitting diode (ED2g_1) can be electrically connected to the second-first green sub-pixel circuit (PC2g_1).

[0253] The 2-1 green light-emitting diode (ED2g_1) may be arranged approximately in the center area of ​​the 1st region (1A). The 2-1 red light-emitting diode (ED2r_1) and the 2-2 red light-emitting diode (ED2r_2) may be arranged at the first and third opposite vertices among the four vertices of an imaginary square centered on the 2-1 green light-emitting diode (ED2g_1), and the 2-1 blue light-emitting diode (ED2b_1) and the 2-2 blue light-emitting diode (ED2b_2) may be arranged at the second and fourth vertices. For example, the 2-1 light-emitting diodes may be arranged approximately in a pentile shape. TM It can be arranged in a structure.

[0254] In one embodiment, each of the first regions (1A) of the non-transparent region (NTA) may be surrounded by four transmissive regions (TA) on a plane. The second-second light-emitting diodes may be arranged in the second region (2A) of the non-transmissive region (NTA), and each of the second-second light-emitting diodes may be arranged one at a time between two adjacent transmissive regions (TA) among the four transmissive regions (TA).

[0255] For example, the second lower metal layer (102) may have a first-first opening (102OP1) disposed on the upper side (+y direction) of the first region (1A), a first-second opening (102OP2) disposed on the left side (-x direction), a first-third opening (102OP3) disposed on the lower side (-y direction), and a first-fourth opening (102OP4) disposed on the right side (+x direction). The second-second green light-emitting diode (ED2g_2) may be disposed between the first-first opening (102OP1) of the second lower metal layer (102) and the first-second opening (102OP2) of the second lower metal layer (102). The 2-3 green light-emitting diode (ED2g_3) may be arranged between the 1-2 opening (102OP2) and the 1-3 opening (102OP3) of the second lower metal layer (102). Accordingly, one transmission area (TA) (or the 1st opening (102OP)) may be surrounded by four 2-2 light-emitting diodes.

[0256] The second-second green light-emitting diode (ED2g_2) and the second-third green light-emitting diode (ED2g_3) can be electrically connected to the second-second green sub-pixel circuit (PC2g_2). The second-second green light-emitting diode (ED2g_2) and the second-third green light-emitting diode (ED2g_3) are arranged spaced apart from the sub-pixel circuit group (PCG), but can be electrically connected to the second-green sub-pixel circuit (PC2g) through the third connecting wire (143).

[0257] While the present invention has been described with reference to the embodiments illustrated in the drawings, these are merely exemplary, and those skilled in the art will appreciate that various modifications and equivalent alternative embodiments are possible. Therefore, the true scope of technical protection of the present invention should be determined by the technical spirit of the appended claims.

Claims

1. A substrate including a first display area and a second display area including a transparent area and a non-transparent area surrounded by the first display area; A first subpixel circuit group arranged in the first display area; A first light-emitting diode group arranged in the first display area and electrically connected to the first subpixel circuit group; A second subpixel circuit group arranged in the above non-transparent area; A second light-emitting diode group arranged in the non-transparent region and electrically connected to the second sub-pixel circuit group; and A display panel comprising an auxiliary light-emitting diode disposed inside the above-described transparent region and electrically connected to the second sub-pixel circuit group.

2. In paragraph 1, Further comprising a lower metal layer disposed in the second display area and defining a first opening overlapping the transparent area; A display panel, wherein the lower metal layer includes a first island portion overlapping the auxiliary light-emitting diode, and a bridge portion extending from the first island portion to the non-transparent area.

3. In paragraph 2, The above first opening has an elliptical shape or capsule shape on a plane, A display panel, wherein at least a portion of the boundary of the first opening includes convex portions.

4. In paragraph 2, The above first opening has a circular shape on a plane, The display panel, wherein the auxiliary light-emitting diode overlaps the central area of ​​the first opening.

5. In paragraph 2, The above bridge portion is a display panel having an arc shape on a plane.

6. In paragraph 5, The above bridge portion has a first boundary and a second boundary facing each other, A display panel, wherein the first boundary has a first radius of curvature, and the second boundary has a second radius of curvature greater than the first radius of curvature.

7. In paragraph 5, The above bridge section is provided in multiple pieces, A display panel in which the above plurality of bridge sections have the same shape on a plane.

8. In paragraph 5, The above first opening is provided in multiple numbers, and includes a first-first opening, a first-second opening, a first-third opening, and a first-fourth opening surrounding one point of the non-transparent area, A display panel, wherein each of the bridge portion of the above-mentioned 1-1 opening, the bridge portion of the above-mentioned 1-2 opening, the bridge portion of the above-mentioned 1-3 opening, and the bridge portion of the above-mentioned 1-4 opening has a shape of one of four arcs that divide an imaginary circle into four equal parts.

9. In paragraph 1, A display panel in which the second light-emitting diode group and the auxiliary light-emitting diode are alternately arranged in a first direction and a second direction intersecting the first direction.

10. In paragraph 1, The first light-emitting diode group includes a first red light-emitting diode and a first blue light-emitting diode arranged in an odd row, and a first green light-emitting diode arranged in an even row, A display panel, wherein the second light-emitting diode group includes second red light-emitting diodes and second blue light-emitting diodes arranged in odd rows, and second green light-emitting diodes arranged in even rows.

11. In paragraph 10, A display panel in which the above auxiliary light-emitting diodes are arranged in even rows.

12. In paragraph 11, The above auxiliary light-emitting diode is a display panel that emits green light.

13. In paragraph 11, A display panel in which the second green light-emitting diode and the auxiliary light-emitting diode are alternately arranged in a first direction and a second direction intersecting the first direction, and are spaced apart from each other at equal intervals.

14. In paragraph 1, An encapsulating layer disposed on the first light-emitting diode group, the second light-emitting diode group, and the auxiliary light-emitting diode; A light-shielding layer disposed on the sealing layer and defining first filter openings overlapping the second light-emitting diode group and second openings overlapping the transmission area; First color filters arranged on the above light-shielding layer and arranged corresponding to the second light-emitting diode group; and A display panel further comprising a second color filter disposed on the encapsulating layer and disposed corresponding to the auxiliary light-emitting diode.

15. In paragraph 14, The above light-shielding layer further includes a first portion disposed on the inside of the second opening, The above first part is a display panel defining a second filter opening overlapping the auxiliary light emitting diode.

16. In paragraph 1, An encapsulating layer disposed on the first light-emitting diode group, the second light-emitting diode group, and the auxiliary light-emitting diode; A light-shielding layer disposed on the sealing layer and defining first filter openings overlapping the second light-emitting diode group and second filter openings overlapping the auxiliary light-emitting diode; First color filters arranged on the above light-shielding layer and arranged corresponding to the second light-emitting diode group; and A display panel further comprising a second color filter disposed on the light-blocking layer and disposed corresponding to the auxiliary light-emitting diode.

17. In paragraph 1, Further comprising an insulating layer disposed between the second subpixel circuit group and the second light-emitting diode group; A display panel, wherein the insulating layer defines an opening overlapping the transparent area.

18. In paragraph 1, The above non-transparent region includes a first region and a second region outside the first region, In the above first area, the second subpixel circuit group is arranged, A display panel, wherein the second light-emitting diode group includes second red light-emitting diodes and second blue light-emitting diodes arranged in the first region, and third green light-emitting diodes arranged in the second region.

19. In paragraph 18, The second light-emitting diode group further includes a second green light-emitting diode arranged in the first region, A display panel, wherein the third green light-emitting diode and the second green light-emitting diode are electrically connected to the same subpixel circuit.

20. A substrate including a first display area and a second display area located inside the first display area and including a transparent area and a non-transparent area outside the transparent area; A first subpixel circuit group arranged in the first display area; A first light-emitting diode group arranged in the first display area and electrically connected to the first subpixel circuit group; A second subpixel circuit group arranged in the above non-transparent area; A second light-emitting diode group is disposed in the non-transparent region and is electrically connected to the second sub-pixel circuit group; The above non-transparent region includes a first region and a second region outside the first region, In the above first area, the second subpixel circuit group is arranged, A display panel, wherein the second light-emitting diode group includes 2-1 light-emitting diodes arranged in the first region and 2-2 light-emitting diodes arranged in the second region.

21. In paragraph 20, The above-mentioned penetration area is provided in multiple pieces, The above first region is surrounded by four transparent regions on a plane, A display panel in which the above-mentioned second-second light-emitting diodes are arranged one by one between the four transmission areas.

22. In paragraph 20, The above 2-1 light-emitting diodes include at least one blue light-emitting diode and at least one red light-emitting diode, The above 2-2 light-emitting diodes include a green light-emitting diode, the display panel.

23. In paragraph 22, A display panel, wherein a pair of adjacent second-second light-emitting diodes are electrically connected to the same subpixel circuit.

24. In paragraph 20, The above 2-1 light-emitting diodes include at least one blue light-emitting diode, at least one red light-emitting diode, and a green light-emitting diode, The above 2-2 light-emitting diodes include a green light-emitting diode, the display panel.

25. In paragraph 20, Further comprising a lower metal layer disposed in the second display area and defining a first opening overlapping the transparent area; A display panel, wherein the first opening has an elliptical shape or a capsule shape on a plane.

26. In paragraph 25, A display panel, wherein at least a portion of the boundary of the first opening includes convex portions.

27. Display panel; and a component overlapping the above display panel; The above display panel, A substrate including a first display area and a second display area including a transparent area and a non-transparent area surrounded by the first display area; A first subpixel circuit group arranged in the first display area; A first light-emitting diode group arranged in the first display area and electrically connected to the first subpixel circuit group; A second subpixel circuit group arranged in the above non-transparent area; A second light-emitting diode group arranged in the non-transparent region and electrically connected to the second sub-pixel circuit group; and An electronic device comprising: an auxiliary light-emitting diode disposed inside the above-described transparent region and electrically connected to the second sub-pixel circuit group; 28. Display panel; and a component overlapping the above display panel; The above display panel, A substrate including a first display area and a second display area located inside the first display area and including a transparent area and a non-transparent area outside the transparent area; A first subpixel circuit group arranged in the first display area; A first light-emitting diode group arranged in the first display area and electrically connected to the first subpixel circuit group; A second subpixel circuit group arranged in the above non-transparent area; A second light-emitting diode group is disposed in the non-transparent region and is electrically connected to the second sub-pixel circuit group; The above non-transparent region includes a first region and a second region outside the first region, In the above first area, the second subpixel circuit group is arranged, An electronic device, wherein the second light-emitting diode group includes 2-1 light-emitting diodes arranged in the first region and 2-2 light-emitting diodes arranged in the second region.

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