Display device

Abstract

The present application relates to a display device. The display device includes a substrate, a display unit, a wiring structure, and a first power supply structure. The substrate includes a display region, a first non-display region adjacent to the display region, a second non-display region, and a bending region between the first non-display region and the second non-display region. The display unit is in the display region. The wiring structure is in the first non-display region, the bending region, and the second non-display region, and includes a first wiring group and a second wiring group that overlap the bending region and are spaced apart from each other. The first power supply structure includes a first conductive line and a second conductive line in the first non-display region and the second non-display region, respectively, and includes a first connection line connecting the first conductive line to the second conductive line and positioned between the first wiring group and the second wiring group.

Description

[0001] Cross-references to related applications

[0002] This application claims priority and benefit to Korean Patent Application No. 10-2018-0153020, filed on November 30, 2018, with the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0003] The technical field relates to a display device. Background Technology

[0004] Display devices, such as organic light-emitting display devices, may include a display portion for displaying images and may include a wiring portion with wiring for connecting to external devices. The wiring portion may be part of a non-display area. The non-display area may not display images in response to input signals, but may undesirably increase the size of the display device. Summary of the Invention

[0005] One or more embodiments may relate to a display device with minimized unused space and satisfactory luminous uniformity.

[0006] According to one or more embodiments, a display device includes: a substrate including a display area, a first non-display area adjacent to the display area, a second non-display area, and a curved area between the first non-display area and the second non-display area; a display unit positioned in the display area; a fan-out portion positioned in the first non-display area, the curved area, and the second non-display area, and including a first fan-out portion and a second fan-out portion positioned in the curved area, a first separation region between the first fan-out portion and the second fan-out portion; and a first power supply portion including a first conductive line and a second conductive line positioned in the first non-display area and the second non-display area respectively along a first direction, and a first connecting line connecting the first conductive line to the second conductive line along a second direction intersecting the first direction, at least a portion of the first connecting line being positioned in the first separation region.

[0007] At least a portion of the first connecting line can be positioned in the curved region.

[0008] At least a portion of the first power supply section may overlap with the fan-out section.

[0009] The first power supply section may overlap with the fan-out section in the first non-display area and the second non-display area.

[0010] The first power supply section can supply power from the electrodes to the display unit.

[0011] The display device may further include a second power supply portion located at the outer edge of the first power supply portion in a non-display area.

[0012] The display unit may include a light-emitting device, which includes a pixel electrode, a common electrode positioned on the pixel electrode, and an intermediate layer between the pixel electrode and the common electrode, including an emitting layer, and a second power supply portion may be electrically connected to the common electrode.

[0013] At least a portion of the second power supply section may overlap with the fan-out section.

[0014] The second power supply section can supply public power to the display unit.

[0015] The fan-out portion may further include a third fan-out portion, with a second separation region positioned between the second fan-out portion and the third fan-out portion.

[0016] The first power supply section may further include a second connection line located in the second separation area.

[0017] At least a portion of the second connecting line can be positioned in the curved area.

[0018] At least a portion of the second power supply section can be located in the second separation region.

[0019] The second power supply section may include a third conductive line and a fourth conductive line respectively positioned in a first non-display area and a second non-display area along a first direction, and a third connecting line connecting the third conductive line to the fourth conductive line along a second direction, wherein at least a portion of the third connecting line is positioned in a second separation area.

[0020] At least a portion of the third connecting line can be positioned in the curved area.

[0021] The fan-out portion may further include a third fan-out portion and a fourth fan-out portion, with a second separation region positioned between the second and third fan-out portions, and a third separation region positioned between the third and fourth fan-out portions.

[0022] The first power supply section may further include a second connecting line located in the second separation region, and the second power supply section may include a third conductive line and a fourth conductive line located in the first non-display region and the second non-display region respectively along the first direction, and a third connecting line connecting the third conductive line to the fourth conductive line along the second direction, at least a portion of the third connecting line being located in the third separation region.

[0023] At least a portion of the third connecting line can be positioned in the curved area.

[0024] The first connecting line may not overlap with the fan-out portion in the curved region.

[0025] The fan-out section and the first power supply section can be symmetrically positioned based on the axis of symmetry.

[0026] The curved region can be curved based on a bending axis parallel to the first direction.

[0027] The fan-out portion may include multiple wirings, and each of the multiple wirings may include a first conductive layer located in a first non-display area, a second conductive layer located in a second non-display area, and a connecting layer located in a curved area and connecting the first conductive layer to the second conductive layer.

[0028] The display unit may include a thin-film transistor and a light-emitting device connected to the thin-film transistor. The thin-film transistor may include a semiconductor layer, a gate electrode, and an electrode layer electrically connected to the semiconductor layer. At least a portion of the gate electrode overlaps with the semiconductor layer. The first conductive layer and the second conductive layer may include the same material as the gate electrode. The interconnect layer may include the same material as the electrode layer.

[0029] The first power supply section may include the same material as the electrode layer.

[0030] According to one or more embodiments, a display device includes: a substrate including a display area, a first non-display area adjacent to the display area, a second non-display area, and a curved area between the first non-display area and the second non-display area; a fan-out portion positioned in the first non-display area, the curved area, and the second non-display area, and including a plurality of conductive lines spaced apart from each other by a predetermined distance; and a first power supply portion positioned in the first non-display area, the curved area, and the second non-display area, at least a portion of the first power supply portion being positioned between the plurality of conductive lines.

[0031] The bending region can be bent based on a bending axis extending along a first direction, and multiple conductive lines and a first power supply portion can be positioned in the bending region in a second direction intersecting the first direction.

[0032] Multiple conductive lines and the first power supply section can be in a curved area without overlapping each other.

[0033] The embodiment may relate to a display device. The display device may include: a substrate, a display unit, a wiring structure, and a first power supply structure. The substrate may include a display area, a first non-display area adjacent to the display area, a second non-display area, and a curved area connecting the first and second non-display areas. The display unit may be positioned within the display area. The wiring structure may be positioned within the first non-display area, the curved area, and the second non-display area, and may include a first wiring group and a second wiring group that overlap with and are spaced apart from each other from the curved area. The first power supply structure may include a first conductive line and a second conductive line respectively positioned within the first and second non-display areas, and may include a first connecting line connecting the first conductive line to the second conductive line and positioned between the first and second wiring groups.

[0034] The first connecting line can overlap with the curved area.

[0035] The first conductive line can overlap with the wiring structure.

[0036] The second conductive line can overlap with the wiring structure.

[0037] The first power supply structure can be electrically connected to the electrodes of the display unit.

[0038] The display device may include a second power supply structure positioned between the first conductive line and the second conductive line, spaced apart from the first connecting line, and overlapping with each of the first non-display area, the curved area, and the second non-display area.

[0039] The display unit may include a pixel electrode, a common electrode overlapping the pixel electrode, and an emitter layer between the pixel electrode and the common electrode. A second power supply structure may be electrically connected to the common electrode.

[0040] At least a portion of the second power supply structure may overlap with the wiring structure.

[0041] The second power supply structure can be electrically connected to the common electrode of the display unit.

[0042] The cabling structure may include a third cabling group that is separated from the second cabling group.

[0043] The first power supply structure may include a second connecting line that is directly connected to each of the first and second conductive lines and is positioned between the second wiring group and the third wiring group.

[0044] The second connecting line can overlap with the curved area.

[0045] At least a portion of the second power supply structure can be located between the second wiring group and the third wiring group.

[0046] The second power supply structure may include a third conductive line and a fourth conductive line respectively positioned in a first non-display area and a second non-display area, and may include a third connecting line connecting the third conductive line to the fourth conductive line. The third connecting line may be positioned between the second wiring group and the third wiring group.

[0047] The third connecting line can overlap with the curved area.

[0048] The cabling structure may include a third cabling group separated from the second cabling group, and may include a fourth cabling group separated from the third cabling group.

[0049] The first power supply structure may include a second connecting line positioned between a second wiring group and a third wiring group. The second power supply structure may include a third conductive line and a fourth conductive line positioned in a first non-display area and a second non-display area, respectively, and may include a third connecting line connecting the third conductive line to the fourth conductive line and positioned between the third wiring group and the fourth wiring group or between the second wiring group and the third wiring group.

[0050] The third connecting line can overlap with the curved area.

[0051] A portion of the first connecting line may overlap with the curved area but may not overlap with the wiring structure.

[0052] Each of the wiring structure and the first power supply structure can be arranged symmetrically based on an axis of symmetry.

[0053] The bending region can be bent based on a bending axis parallel to the longitudinal direction of the first conductive line.

[0054] The first wiring group may include a first wiring. The first wiring may include a first conductive layer located in a first non-display area, a second conductive layer located in a second non-display area, and a connecting layer located in a curved area and connecting the first conductive layer to the second conductive layer.

[0055] The display unit may include a thin-film transistor (TFT) and a light-emitting device connected to the TFT. The TFT may include a semiconductor layer, a gate electrode overlapping the semiconductor layer, and an electrode layer electrically connected to the semiconductor layer. The first conductive layer and the second conductive layer may include the same material as the gate electrode. The interconnect layer may include the same material as the electrode layer.

[0056] The first power supply structure may include the same material as the electrode layer.

[0057] The embodiment may relate to a display device. The display device may include the following components: a substrate including a display area, a first non-display area adjacent to the display area, a second non-display area, and a curved area connecting the first non-display area and the second non-display area; a wiring structure positioned in the first non-display area, the curved area, and the second non-display area, and including conductive lines spaced apart from each other; and a first power supply structure positioned in the first non-display area, the curved area, and the second non-display area, at least a portion of the first power supply structure being positioned between the conductive lines.

[0058] The bending region can be bent based on a bending axis extending in the first direction. The conductive lines and portions of the first power structure can be spaced apart from each other in the first direction.

[0059] The portion of the conductive line may overlap with the curved area or may not overlap with the first power supply structure. Attached Figure Description

[0060] Figure 1 This is a perspective view schematically illustrating a portion of a display device according to an embodiment.

[0061] Figure 2 This is a schematic plan view illustrating a portion of a display device according to an embodiment.

[0062] Figure 3 This is a circuit diagram schematically illustrating the pixels of a display device according to an embodiment.

[0063] Figure 4 This is a schematic illustration according to an embodiment. Figure 2 A plan view of area A.

[0064] Figure 5 This is a schematic plan view illustrating a portion of a display device according to an embodiment.

[0065] Figure 6 This is a schematic plan view illustrating a portion of a display device according to an embodiment.

[0066] Figure 7 This is a plan view illustrating a portion of a display device according to another embodiment.

[0067] Figure 8 This is a plan view illustrating a portion of a display device according to an embodiment.

[0068] Figure 9 This is a plan view illustrating a portion of a display device according to an embodiment.

[0069] Figure 10 This is a plan view illustrating a portion of a display device according to an embodiment.

[0070] Figure 11 This is a schematic plan view illustrating a portion of a display device according to an embodiment.

[0071] Figure 12 This is a schematic cross-sectional view illustrating a portion of a display device according to an embodiment.

[0072] Figure 13 This is a schematic cross-sectional view illustrating a portion of a display device according to an embodiment.

[0073] Figure 14 This is a schematic plan view illustrating a portion of a display device according to an embodiment.

[0074] Figure 15 According to the embodiments Figure 14 Plan view of region E.

[0075] Figure 16 This is a schematic plan view illustrating a portion of a display device according to an embodiment.

[0076] Figure 17 This is a schematic plan view illustrating a portion of a display device according to an embodiment.

[0077] Figure 18 This is a schematic plan view illustrating a portion of a display device according to an embodiment. Detailed Implementation

[0078] Example embodiments are described with reference to the accompanying drawings. The same reference numerals may refer to the same elements.

[0079] Although the terms "first," "second," etc., can be used to describe various elements, these elements should not be limited by these terms. These terms can be used to distinguish one component from another. Thus, a first element can be referred to as a second element without departing from the teachings of one or more embodiments. The description of an element as a "first" element does not require or imply the existence of a second element or other elements. The terms "first," "second," etc., can also be used herein to distinguish elements of different categories or sets. For brevity, the terms "first," "second," etc., can respectively represent "first type (or first set)," "second type (or second set)," etc.

[0080] The singular forms “one” and “the” can also represent the plural forms, unless the context clearly indicates otherwise.

[0081] The terms “comprising” and / or “including” may specify the presence of a stated feature or component, but may not exclude the presence or addition of one or more other features or components. When a first element is referred to as being “on” a second element, the first element may be directly or indirectly on the second element. One or more intermediate elements may be present between the first element and the second element.

[0082] For ease of explanation, the dimensions of the components in the attached diagram may be exaggerated.

[0083] Directions D1, D2, and D3 are not limited to the three axes of an orthogonal coordinate system, and can be perpendicular to each other or not perpendicular to each other.

[0084] When an embodiment can be implemented differently, a particular process sequence can be executed differently. For example, two consecutively described processes can be executed substantially simultaneously, or in the reverse order of their description.

[0085] The display device according to the embodiment is an apparatus for displaying an image based on an input signal, and may be, for example, a liquid crystal display (LCD) device, an electrophoretic display device, an organic light-emitting display device, an inorganic electroluminescent (EL) display device, a field emission display (FED) device, a surface conduction electron emitter display device, a plasma display device, or a cathode ray display device.

[0086] The term "device" can mean "equipment". The term "fan-out section" can mean "wiring structure" or "wiring group". The term "power supply section" can mean "power supply structure" or "power line structure". The term "connection" can mean "electrical connection". The term "conductivity" can mean "electrical conduction". The term "insulation" can mean "electrical insulation". The term "contact" can mean "direct contact" or "directly in contact". The term "same as" can mean "equal to". Components located in the area of ​​the display device can be located in the corresponding area of ​​the substrate of the display device (and / or can overlap with the corresponding area of ​​the substrate of the display device). The description using "second direction (D2)" can refer to the structure before bending in the bending area.

[0087] Figure 1 This is a perspective view schematically illustrating a portion of a display device according to an embodiment, and Figure 2 This is a schematic plan view illustrating a portion of a display device according to an embodiment.

[0088] refer to Figure 1The substrate 100 of the display device may include a display area DA and a non-display area NDA surrounding the display area DA. The non-display area NDA may include a curved area BA. The display area DA may have a substantially flat surface. The curved area BA of the substrate 100 may be curved based on a bending axis BAX extending in a first direction D1.

[0089] The substrate 100 may include at least one of a variety of flexible, bendable, or rollable materials. For example, the substrate 100 may include polymeric resins such as polyethersulfone (PES), polyacrylate (PAR), polyetherimide (PEI), polyethylene naphthalate (PEN), polyethylene terephthalate (PET), polyphenylene sulfide (PPS), polyarylate (PAR), polyimide (PI), polycarbonate (PC), or cellulose acetate propionate (CAP).

[0090] The substrate 100 may have a multilayer structure, which includes two polymer resin layers and an inorganic (e.g., silicon oxide, silicon nitride, or silicon oxynitride) barrier layer between the two polymer resin layers. In an embodiment, the substrate 100 may include glass.

[0091] In the substrate 100, the width of the curved region BA in the first direction D1 can be smaller than the width of the display region DA in the first direction D1. The corner portion 100c of the substrate 100 can be rounded. The display region DA can also have rounded corners.

[0092] refer to Figure 2 The display device may include a display area DA in which multiple pixels are positioned, and may also include a non-display area NDA outside the display area DA. The non-display area NDA may include a pad area PDA in which an integrated circuit (IC) and / or a printed circuit board (PCB) may be disposed. The areas DA, NDA, BA, and PDA of the display device may correspond to the areas DA, NDA, BA, and PDA of the substrate 100.

[0093] Figure 2 A plan view of substrate 100 during the manufacturing process of a display device can be illustrated. In the final manufactured display device or electronic device (e.g., a smartphone) including a display device, a portion of substrate 100 can be bent to minimize the area of ​​the non-display area NDA, such as... Figure 1 As shown in the diagram. For example, the substrate 100 can be bent based on a bending axis BAX parallel to the first direction D1.

[0094] At least a portion of the pad area PDA can overlap with the display area DA. The pad area PDA can be positioned behind the display area DA.

[0095] The display area DA can have a basic rectangular or square shape. The display area DA may include a first edge E1 and a second edge E2 opposite to each other, and may include a third edge E3 and a fourth edge E4 opposite to each other and located between the first edge E1 and the second edge E2. The pad area PDA is adjacent to the fourth edge E4. The first portion P1 of the display area DA connecting the first edge E1 to the fourth edge E4 can be circular. The second portion P2 of the display area DA connecting the second edge E2 to the fourth edge E4 can be circular. The other portions of the display area DA can be circular.

[0096] A display unit 10, comprising multiple pixels, can be positioned within a display area DA. A fan-out portion 20, including conductive lines, can be positioned within a pad area PDA. One side of the fan-out portion 20 can be connected to the display unit 10, and the other side of the fan-out portion 20 can be connected to a driving circuit portion 30. The driving circuit portion 30 may include an IC.

[0097] Figure 3 This is a circuit diagram schematically illustrating the pixels of a display device according to an embodiment.

[0098] refer to Figure 3 Pixel PX may include pixel circuitry PC connected to scan line SL and data line DL, and may include an organic light-emitting device (OLED) connected to pixel circuitry PC. Pixel circuitry PC may include a driving thin-film transistor (TFT) Td, a switching TFT Ts, and a storage capacitor Cst. Switching TFT Ts may be connected to scan line SL and data line DL, and may transmit data signals input via data line DL according to scan signals input via scan line SL.

[0099] The storage capacitor Cst can be connected to the switch TFT Ts and the drive voltage line PL, and can store the voltage corresponding to the difference between the voltage transmitted from the switch TFT Ts and the drive voltage ELVDD supplied to the drive voltage line PL.

[0100] The driving TFT Td can be connected to the driving voltage line PL and the storage capacitor Cst, and the driving current flowing through the OLED from the driving voltage line PL can be controlled in response to the value of the voltage stored in the storage capacitor Cst. The OLED can be connected between the driving TFT Td and the common voltage ELVSS. Due to the driving current, the OLED can emit light with a certain brightness. For example, the OLED can emit red, green, blue, or white light.

[0101] exist Figure 3In this embodiment, pixel PX includes two TFTs and one storage capacitor. In another embodiment, the pixel circuit PC of pixel PX may include three or more TFTs or two or more storage capacitors.

[0102] Figure 4 It is a schematic diagram. Figure 2 A plan view of area A.

[0103] refer to Figure 4 The non-display area NDA may include a first non-display area NDA1, a second non-display area NDA2, and a curved area BA.

[0104] The first non-display area NDA1 and the second non-display area NDA2 can be positioned on opposite sides of the curved area BA. The first non-display area NDA1 is the area between the display area DA and the second non-display area NDA2. After the curved area BA has been bent, the second non-display area NDA2 is not visible from the front of the display device and lies between the curved area BA and the drive circuit section 30. The curved area BA can be positioned between the first non-display area NDA1 and the second non-display area NDA2.

[0105] The first non-display area NDA1 can be identified by the user of an electronic device (such as a final manufactured display device or a smartphone including a display device). The fan-out portion 20 is located in the first non-display area NDA1.

[0106] According to an embodiment, the fan-out portion 20 includes multiple portions (or wiring groups) such that the width WA1 of the first non-display area NDA1 can be reduced. These portions can be... Figure 4 The separated regions SA in the middle are separated from each other and may include a first fan-out portion 21 and a second fan-out portion 22.

[0107] like Figure 4 As shown, the fan-out portion 20 may include a first fan-out portion 21 and a second fan-out portion 22 in the curved region BA, and the separation region SA is between the first fan-out portion 21 and the second fan-out portion 22. The separation region SA may be located in a portion of each of the curved region BA, the first non-display region NDA1, and the second non-display region NDA2.

[0108] The fan-out portion 20 may include multiple conductive lines CL. The multiple conductive lines CL may include, for example, data lines DL that transmit data signals applied from the drive circuit portion 30 to the display unit 10.

[0109] Multiple conductive lines CL can be positioned within the first non-display area NDA1, the curved area BA, and the second non-display area NDA2. In a plan view, as shown... Figure 4As shown, multiple conductive lines CL can be bent at least twice. The first bend of each conductive line CL can be located in a first non-display area NDA1, and the second bend of each conductive line CL can be located in a second non-display area NDA2. Since stress is concentrated on the bending area BA, the bending of the conductive line CL can avoid the bending area BA to prevent unwanted short circuits.

[0110] A portion of the conductive line CL can extend obliquely relative to the first direction D1 and the second direction D2 within the first non-display area NDA1 and the second non-display area NDA2. Advantageously, the widths WA1 and WA2 of the second non-display area NDA2 can be minimized. The width of the pad area PDA in the first direction D1 can also be minimized. Before bending in the bending area BA, a portion of the conductive line CL can extend parallel to the second direction D2 within the bending area BA.

[0111] The first fan-out portion 21 can be positioned between the second fan-out portions 22. The fan-out portions 20 can have a symmetrical shape. The first fan-out portion 21 can be symmetrical and can be positioned between the second fan-out portions 22. The second fan-out portions 22 can be mirror images of each other based on the axis of symmetry SAX.

[0112] The first fan-out portion 21 may include multiple first conductive lines CL1. The multiple first conductive lines CL1 may include n first conductive lines, from CL1-1 to CL1-n. The second fan-out portion 22 may include multiple second conductive lines CL2. The multiple second conductive lines CL2 may include m second conductive lines, from CL2-1 to CL2-m. The number of first conductive lines CL1 and the number of second conductive lines CL2 may be the same or different from each other.

[0113] Figure 5 and Figure 6 It is a schematic plan view illustrating a portion of a display device according to one or more embodiments. Figure 5 The first power supply section was added Figure 4 The structural plan, and Figure 6 The second power supply section was added Figure 5 A plan view of the structure.

[0114] refer to Figure 5The display device may include a first power supply section 40 having a multi-line structure. In the multi-line structure, two or more connecting lines can connect conductive lines in a first non-display area NDA1 to conductive lines in a second non-display area NDA2, and can be arranged symmetrically. The two connecting lines, including the first connecting line and the second connecting line, can be positioned in a fan-out area PDA (which may include and / or correspond to the second non-display area NDA2).

[0115] The first power supply section 40 may include a first conductive line 40a, a second conductive line 40b, a first connecting line 40c1 and a second connecting line 40c2 connecting the first conductive line 40a to the second conductive line 40b, and a pad line 40d. The first power supply section 40 may supply drive power to Figure 3 The electrode power supply wiring structure for driving TFT Td.

[0116] The first conductive line 40a and the second conductive line 40b can extend in the first direction D1, such as Figure 5 As shown in the diagram. A first conductive line 40a can be positioned in a first non-display area NDA1, and a second conductive line 40b can be positioned in a second non-display area NDA2. A pad line 40d can be positioned in the second non-display area NDA2, can be connected to the second conductive line 40b, and can supply power to the first power supply section 40.

[0117] The first connecting line 40c1 and the second connecting line 40c2 may extend in a second direction D2, which is different from the first direction D1. For example, the second direction D2 may be perpendicular to the first direction D1. The first connecting line 40c1 and the second connecting line 40c2 may be disposed in the curved region BA and may extend to the first non-display region NDA1 and the second non-display region NDA2 to connect the first conductive line 40a to the second conductive line 40b.

[0118] At least a portion of the first connecting line 40c1 may be positioned in the separation region SA between the first fan-out portion 21 and the second fan-out portion 22. This portion of the first connecting line 40c1 may not overlap with the fan-out portion 20.

[0119] The first connecting line 40c1 may not overlap with either the first fan-out portion 21 or the second fan-out portion 22. The first connecting line 40c1, the first fan-out portion 21, and the second fan-out portion 22 may be positioned on the same layer within the curved region BA, and the first connecting line 40c1 may be spaced apart from the first fan-out portion 21 and the second fan-out portion 22. The first conductive line 40a and the second conductive line 40b may overlap with the first fan-out portion 21 and the second fan-out portion 22.

[0120] The second connecting line 40c2 can be positioned outside the fan-out portion 20. The second connecting line 40c2 can also be positioned outside the second fan-out portion 22. The second connecting line 40c2 can be positioned in the bending region BA without overlapping with the second fan-out portion 22. In an embodiment, the second connecting line 40c2 can be positioned in the separation region SA and can be parallel to the first connecting line 40c1.

[0121] Two or more of the first conductive line 40a, the second conductive line 40b, the first connecting line 40c1 and the second connecting line 40c2, and the pad line 40d can be formed from the same conductive layer and can be formed in the same process.

[0122] refer to Figure 6 The second power supply section 50 is located in the non-display area NDA. The second power supply section 50 may be located outside the first power supply section 40. Although not shown, the second power supply section 50 may substantially surround the display area DA. The second power supply section 50 may be a common power supply wiring structure that supplies common power to the display unit 10.

[0123] exist Figure 6 In this embodiment, the second power supply section 50 may not overlap with the fan-out section 20. In another embodiment, the second power supply section 50 may overlap with the fan-out section 20 only in the first non-display area NDA1.

[0124] Because the first power supply section 40 has a multi-wire structure, the heat from the wiring can be effectively dispersed and dissipated. Advantageously, the light emission uniformity of the display unit 10 can be optimized. The multi-wire structure of the first power supply section 40 and the inclined portion of the fan-out section 20 advantageously enable the minimization of the width of the non-display area NDA.

[0125] Figure 7 This is a plan view illustrating a portion of a display device according to an embodiment. Figure 7 and Figure 6 The first power supply section 40 and the second power supply section 50 differ in structure. (Description) Figure 6 and Figure 7 The differences between them.

[0126] refer to Figure 7 The display device includes a second power supply section 50 having a multi-line structure.

[0127] The fan-out portion 20 may include a first fan-out portion 21 and a second fan-out portion 22. In the curved region BA, the separation region SA may be positioned between the first fan-out portion 21 and the second fan-out portion 22.

[0128] The first power supply section 40 may include a first conductive line 40a, a second conductive line 40b, a first connecting line 40c1 connecting the first conductive line 40a to the second conductive line 40b, and a pad line 40d. The first conductive line 40a and the second conductive line 40b may extend in a first direction D1. The first conductive line 40a may be positioned in a first non-display area NDA1, and the second conductive line 40b may be positioned in a second non-display area NDA2.

[0129] The first connecting line 40c1 may extend in a second direction D2, which is different from the first direction D1. The first connecting line 40c1 may be positioned in the bending region BA and may extend into the first non-display region NDA1 and the second non-display region NDA2, so as to connect the first conductive line 40a to the second conductive line 40b.

[0130] The second power supply section 50 may include a third conductive line 50a, a fourth conductive line 50b, a third connecting line 50c1 and a fourth connecting line 50c2 connecting the third conductive line 50a to the fourth conductive line 50b, and a pad line 50d.

[0131] The third conductive line 50a and the fourth conductive line 50b may extend in the first direction D1. The third conductive line 50a and the fourth conductive line 50b may be oriented substantially parallel to the first conductive line 40a and the second conductive line 40b. The third conductive line 50a may be positioned in the first non-display area NDA1, and the fourth conductive line 50b may be positioned in the second non-display area NDA2.

[0132] The third connecting line 50c1 and the fourth connecting line 50c2 can extend in the second direction D2. The third connecting line 50c1 and the fourth connecting line 50c2 can be positioned in the bending region BA and can extend into the first non-display region NDA1 and the second non-display region NDA2 to connect the third conductive line 50a to the fourth conductive line 50b.

[0133] The pad line 50d can extend in the second direction D2 within the second non-display area NDA2. The pad line 50d can be connected to the fourth conductive line 50b and can supply power to the second power supply section 50.

[0134] At least a portion of the first connecting line 40c1 and the third connecting line 50c1 can be positioned in the separation region SA between the first fan-out portion 21 and the second fan-out portion 22. This portion of the first connecting line 40c1 and the third connecting line 50c1 may not overlap with the fan-out portion 20.

[0135] The first connecting line 40c1 and the third connecting line 50c1 can be positioned on the same layer. The first connecting line 40c1 and the third connecting line 50c1 can be spaced apart from each other by a predetermined distance. The first connecting line 40c1 and the third connecting line 50c1 can be positioned in the curved region BA without overlapping with the fan-out portion 20. The first connecting line 40c1 can be positioned in the curved region BA without overlapping with both the first fan-out portion 21 and the second fan-out portion 22.

[0136] The fourth connection line 50c2 of the second power supply section 50 can be positioned at the outer edge of the fan-out section 20. The fourth connection line 50c2 can be positioned so as not to overlap with the fan-out section 20 and not to overlap with the second fan-out section 22.

[0137] Because the second power supply section 50 has a multi-wire structure, the heat from the wiring can be effectively dispersed and dissipated. Advantageously, the light emission uniformity of the display unit 10 can be optimized. The multi-wire structure of the second power supply section 50 and the angled portion of the fan-out section 20 enable the minimization of the width of the non-display area NDA.

[0138] Figure 8 and Figure 9 This is a plan view illustrating a portion of a display device according to one or more embodiments. Figure 8 and Figure 9 and Figure 6 The fan-out section 20, the first power supply section 40, and the second power supply section 50 differ in structure.

[0139] refer to Figure 8 and Figure 9 The fan-out portion 20 may include a first fan-out portion 21, two second fan-out portions 22, and two third fan-out portions 23. The first fan-out portion 21 may be positioned at the center of the fan-out portion 20, and the second fan-out portions 22 may be positioned on two opposite sides (left and right) of the first fan-out portion 21, and the third fan-out portions 23 may be positioned on two opposite sides of the two second fan-out portions 22.

[0140] The first fan-out portion 21 and the second fan-out portion 22 can be separated by a first separation region SA1 within the curved region BA. The first fan-out portion 21 and the second fan-out portion 22 can be close to each other in a region outside the curved region BA. Outside the curved region BA, the first fan-out portion 21 and the second fan-out portion 22 can be significantly separated by the same distance as the distance between the conductive lines in each of the fan-out portions 21 and 22.

[0141] The second fan-out portion 22 and the third fan-out portion 23 can be significantly separated by the second separation region SA2 within the curved region BA. The second fan-out portion 22 and the third fan-out portion 23 can be close to each other outside the curved region BA.

[0142] The first separation region SA1 and the second separation region SA2 can be primarily located within the curved region BA, and a portion of the first separation region SA1 and the second separation region SA2 can extend into the first non-display region NDA1 and the second non-display region NDA2. Figure 8 and Figure 9 In this embodiment, the width of the first separation region SA1 in the first direction D1 may be smaller than the width of the second separation region SA2 in the first direction D1. In another embodiment, the widths of the first separation region SA1 and the second separation region SA2 may be the same, or the width of the first separation region SA1 may be greater than the width of the second separation region SA2.

[0143] refer to Figure 8 The display device includes a first power supply section 40 having a multi-line structure. The first power supply section 40 may include a first conductive line 40a, a second conductive line 40b, a first connecting line 40c1 and a second connecting line 40c2 connecting the first conductive line 40a to the second conductive line 40b, and a pad line 40d.

[0144] The first conductive line 40a and the second conductive line 40b may extend in the first direction D1. The first conductive line 40a may be positioned in the first non-display area NDA1, and the second conductive line 40b may be positioned in the second non-display area NDA2.

[0145] The first connecting line 40c1 and the second connecting line 40c2 can extend in the second direction D2.

[0146] The first connecting line 40c1 and the second connecting line 40c2 can be positioned in the curved region BA and can extend into the first non-display region NDA1 and the second non-display region NDA2 to connect the first conductive line 40a to the second conductive line 40b.

[0147] The first connecting line 40c1 and the second connecting line 40c2 may not overlap with the fan-out portion 20 in the curved region BA. The first connecting line 40c1 and the second connecting line 40c2 may not overlap with the first fan-out portion 21 and the second fan-out portion 22 in the curved region BA. The first connecting line 40c1 and the second connecting line 40c2 may overlap with the fan-out portion 20 in the first non-display region NDA1 and the second non-display region NDA2.

[0148] The first connecting line 40c1 can be positioned in the first separation region SA1 between the first fan-out portion 21 and the second fan-out portion 22, and the second connecting line 40c2 can be positioned in the second separation region SA2 between the second fan-out portion 22 and the third fan-out portion 23.

[0149] The second power supply section 50 is located in the non-display area NDA. The second power supply section 50 may be located at the outer edge of the first power supply section 40. Although not shown, the second power supply section 50 may substantially surround the display area DA.

[0150] exist Figure 8 In this embodiment, the second power supply section 50 may not overlap with the fan-out section 20. In another embodiment, the second power supply section 50 may overlap with the fan-out section 20 only in the first non-display area NDA1.

[0151] Because the first power supply section 40 has a multi-wire structure, the heat from the wiring can be effectively dispersed and dissipated. Advantageously, the light emission uniformity of the display unit 10 can be optimized. The multi-wire structure of the first power supply section 40 and the angled portion of the fan-out section 20 enable the minimization of the width of the non-display area NDA.

[0152] Figure 9 Display device and Figure 8 The display device is similar and includes a first power supply section 40 and a second power supply section 50 having a multi-line structure.

[0153] The second power supply section 50 may include a third conductive line 50a, a fourth conductive line 50b, a third connecting line 50c1 and a fourth connecting line 50c2 connecting the third conductive line 50a to the fourth conductive line 50b, and a pad line 50d.

[0154] The third conductive line 50a and the fourth conductive line 50b may extend in the first direction D1. The third conductive line 50a and the fourth conductive line 50b may be oriented substantially parallel to the first conductive line 40a and the second conductive line 40b. The third conductive line 50a may be positioned in the first non-display area NDA1, and the fourth conductive line 50b may be positioned in the second non-display area NDA2.

[0155] The third connecting line 50c1 and the fourth connecting line 50c2 can extend in the second direction D2. The third connecting line 50c1 and the fourth connecting line 50c2 can be positioned in the bending region BA and can extend into the first non-display region NDA1 and the second non-display region NDA2 to connect the third conductive line 50a to the fourth conductive line 50b.

[0156] The pad line 50d can extend in the second direction D2 within the second non-display area NDA2. The pad line 50d can be connected to the fourth conductive line 50b and can supply power to the second power supply section 50.

[0157] The second connecting line 40c2 of the first power supply section 40 and the third connecting line 50c1 of the second power supply section 50 can be positioned in the second separation region SA2. The second connecting line 40c2 and the third connecting line 50c1 can be spaced apart from each other by a predetermined distance and can be parallel to each other. The second connecting line 40c2 and the third connecting line 50c1 can be positioned in the bending region BA without overlapping with both the second fan-out portion 22 and the third fan-out portion 23.

[0158] The fourth connection line 50c2 of the second power supply section 50 can be placed at the outer edge of the fan-out section 20. The fourth connection line 50c2 does not need to overlap with the fan-out section 20.

[0159] Because the first power supply section 40 and the second power supply section 50 have a multi-line structure, the heat from the wiring can be effectively dispersed and dissipated. Advantageously, the light emission uniformity of the display unit 10 can be optimized. The multi-line structure of the power supply sections 40 and 50, as well as the inclined portion of the fan-out section 20, makes it possible to minimize the width of the non-display area NDA.

[0160] In an embodiment, the width of the lines included in each of the first power supply section 40 and the second power supply section 50 may be the same in all regions. In an embodiment, the width of the lines in the first power supply section 40 and the second power supply section 50 may differ in some sections, such as... Figure 10 As shown in the diagram, the linewidth can be configured to minimize the resistance of the first power supply section 40 and / or the second power supply section 50.

[0161] The linewidth of the first power supply section 40 and the second power supply section 50 in the curved region BA can be limited by the width of the separation region SA. The linewidth of the first power supply section 40 and the second power supply section 50 in the first non-display region NDA1 and the second non-display region NDA2 can be widened. This is because the first power supply section 40 and the second power supply section 50 are positioned on different layers than the fan-out section 20 in the first non-display region NDA1 and the second non-display region NDA2.

[0162] The linewidths of the first power supply section 40 and the second power supply section 50 can be configured to avoid other components and structures.

[0163] Figure 17 Diagram and Figure 9 Similar embodiments to those described above. Figure 17 In the first power supply section 40, the first connecting line 40c1 can be positioned in the first separation region SA1, and the third connecting line 50c1 of the second power supply section 50 can be positioned in the second separation region SA2. The fourth connecting line 50c2 of the second power supply section 50 can be positioned outside the fan-out section 20.

[0164] Figure 11 This is a schematic plan view illustrating a portion of a display device according to an embodiment, and Figure 12 and Figure 13 It is a schematic cross-sectional view illustrating a portion of a display device according to at least one embodiment. Figure 12 Along Figure 11 The cross sections intercepted by lines B-B' and C-C' correspond, and Figure 13 Along Figure 11 The cross sections intercepted by lines B-B' and D-D' correspond.

[0165] refer to Figure 12 The TFT 210 can be electrically connected to the OLED 300 and can also be positioned in the display area DA. The pixel electrode 310 of the OLED 300 is electrically connected to the TFT 210.

[0166] A TFT (not shown) may be placed in the non-display area NDA. The TFT positioned in the non-display area NDA may be part of a circuit unit used to control the electrical signals applied to the display area DA.

[0167] TFT 210 may include a semiconductor layer 211, a gate electrode 213, a source electrode 215a, and a drain electrode 215b, wherein the semiconductor layer 211, the gate electrode 213, the source electrode 215a, and the drain electrode 215b may include amorphous silicon, polycrystalline silicon, or organic semiconductor materials.

[0168] To insulate the semiconductor layer 211 from the gate electrode 213, a gate insulating layer 120 may be positioned between the semiconductor layer 211 and the gate electrode 213. The gate insulating layer 120 comprises an inorganic material such as silicon oxide, silicon nitride, and / or silicon oxynitride. Furthermore, an interlayer insulating layer 130 may be positioned on the gate electrode 213. The interlayer insulating layer 130 comprises an inorganic material such as silicon oxide, silicon nitride, and / or silicon oxynitride, and the source electrode 215a and drain electrode 215b may be positioned on the interlayer insulating layer 130. The insulating layer comprising the inorganic material can be formed by chemical vapor deposition (CVD) or atomic layer deposition (ALD).

[0169] A buffer layer 110 may be located between the TFT 210 and the substrate 100. The buffer layer 110 may comprise an inorganic material such as silicon oxide, silicon nitride, and / or silicon oxynitride. The buffer layer 110 may improve the smoothness of the top surface of the substrate 100 and may prevent impurities from penetrating into the semiconductor layer 211 of the TFT 210.

[0170] The planarization layer 140 can be positioned on the TFT 210. The planarization layer 140 can planarize the surface above the TFT 210.

[0171] The planarization layer 140 can be formed from organic materials such as acrylic resin, benzocyclobutene (BCB), or hexamethyldisiloxane (HMDSO). The planarization layer 140 can be a single layer or can have a multilayer structure. Figure 12 As illustrated, the planarization layer 140 has an opening outside the display area DA, allowing a portion of the planarization layer 140 over the display area DA and a portion of the planarization layer 140 over the non-display area NDA to be physically separated from each other. This is to prevent impurities from reaching the display area DA through the planarization layer 140.

[0172] In the display area DA, the OLED 300 can be positioned on the planarization layer 140. The OLED 300 may include a pixel electrode 310, a common electrode 330, and an intermediate layer 320 (including an emission layer) between the pixel electrode 310 and the common electrode 330.

[0173] The pixel electrode 310 can contact one of the source electrode 215a and the drain electrode 215b through a contact hole formed in the planarization layer 140, and can be electrically connected to the TFT 210.

[0174] A pixel defining layer 150 can be disposed on the planarization layer 140. The pixel defining layer 150 has an opening that exposes at least the central portion of the pixel electrode 310. The pixel defining layer 150 increases the distance between the edge of the pixel electrode 310 and the common electrode 330, thereby preventing arcing at the edge of the pixel electrode 310. The pixel defining layer 150 can be formed of an organic material such as polyimide or HMDSO.

[0175] The intermediate layer 320 of the OLED 300 may include a low molecular weight material or a polymer material. When the intermediate layer 320 includes a low molecular weight material, it may include a hole injection layer (HIL), a hole transport layer (HTL), an emitter layer (EML), an electron transport layer (ETL), and an electron injection layer (EIL) stacked in a composite structure. The intermediate layer 320 may include one or more organic materials, such as copper titanium cyanide (CuPc), N,N'-bis(naphthyl-1-yl)-N,N'-diphenyl-benzidine (NPB), and tri-8-hydroxyquinoline aluminum (Alq3). The intermediate layer 320 may be formed by vacuum deposition.

[0176] When the intermediate layer 320 comprises a polymer material, the intermediate layer 320 may include an HTL and an EML. The HTL may include poly-3,4-ethylenedioxythiophene (PEDOT), and the EML may include poly(p-phenylacetylene) (PPV) and / or polyfluorene polymer materials. The intermediate layer 320 may be formed by screen printing, inkjet printing, or laser-induced thermal imaging (LITI).

[0177] The common electrode 330 can cover the display area DA. The common electrode 330 can correspond to multiple pixel electrodes 310.

[0178] The encapsulation layer 400 can cover and protect the OLED 300. The encapsulation layer 400 can cover the display area DA and can extend beyond the display area DA. The encapsulation layer 400 may include a first inorganic encapsulation layer 410, an organic encapsulation layer 420, and a second inorganic encapsulation layer 430.

[0179] The first inorganic encapsulation layer 410 may cover the common electrode 330 and may include silicon oxide, silicon nitride, and / or silicon oxynitride. Other layers, including the capping layer, may also be present between the first inorganic encapsulation layer 410 and the common electrode 330. The first inorganic encapsulation layer 410 is formed according to the underlying structure, and the top surface of the first inorganic encapsulation layer 410 is not flat.

[0180] The organic encapsulation layer 420 covers the first inorganic encapsulation layer 410, and the top surface of the organic encapsulation layer 420 may be substantially flat. The top surface of the organic encapsulation layer 420 in the portion corresponding to the display area DA may be substantially flat. The organic encapsulation layer 420 may include one or more materials selected from the group consisting of polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polycarbonate (PC), polyimide, polyethylene sulfonate, polyoxymethylene, polyarylate, and hexamethyldisiloxane.

[0181] The second inorganic encapsulation layer 430 may cover the organic encapsulation layer 420 and may include silicon oxide, silicon nitride, and / or silicon oxynitride. The second inorganic encapsulation layer 430 may contact the first inorganic encapsulation layer 410 at the edge outside the display area DA, so that the organic encapsulation layer 420 is not exposed.

[0182] When a crack occurs in the encapsulation layer 400, it is possible that no crack will appear between the first inorganic encapsulation layer 410 and the organic encapsulation layer 420 or between the organic encapsulation layer 420 and the second inorganic encapsulation layer 430. Therefore, moisture and / or oxygen can be substantially prevented from penetrating into the display area DA.

[0183] A touch unit 530, including touch electrodes (not used for touchscreen functionality), can be positioned on an encapsulation layer 400. The touch unit 530 may further include a touch protective layer (not shown) for protecting the touch electrodes. The touch unit 530 can be directly positioned on the encapsulation layer 400. An insulating layer and a conductive layer for forming the touch unit 530 can be sequentially patterned and formed on the encapsulation layer 400. In an embodiment, the touch unit 530 can be manufactured as a separate panel and attached to the encapsulation layer 400 via an adhesive layer. The touch unit 530 can be positioned on a second inorganic encapsulation layer 430. An inorganic insulating layer can be positioned between the touch unit 530 and the second inorganic encapsulation layer 430.

[0184] The protective film 170 is positioned on the bottom surface of the substrate 100. The protective film 170 can be attached to the bottom surface of the substrate 100 via the adhesive layer 180.

[0185] The protective film 170 may include polyethylene terephthalate (PET). The adhesive layer 180 may include pressure-sensitive adhesive (PSA).

[0186] The polarizing plate 520 can be attached to the encapsulation layer 400 via optically transparent adhesive (OCA) 510. A printed circuit board (PCB, not shown) or an electronic chip (not shown) can be attached to the second non-display area NDA2.

[0187] Polarizing plate 520 can reduce external light reflection. For example, when external light passes through polarizing plate 520, is reflected on the top surface of common electrode 330, and passes through polarizing plate 520 again, the polarizing plate 520 can change the phase of the external light as it passes through the polarizing plate 520 twice. As a result, the phase of the reflected light can be different from the phase of the external light entering polarizing plate 520, allowing destructive interference to occur. Consequently, external light reflection can be reduced, and visibility can be optimized.

[0188] An opening can be located in the curved region BA of the non-display area NDA. The opening can be formed by removing a portion of the inorganic insulating portion IL, thereby exposing at least a portion of the substrate 100. The inorganic insulating portion IL may include a buffer layer 110, a gate insulating layer 120, and an interlayer insulating layer 130. In an embodiment, the inorganic insulating portion IL may include a buffer layer 110 and a gate insulating layer 120.

[0189] The organic insulating layer 160a can fill the opening. Since the inorganic layer is less stressed than the organic layer, a portion of the inorganic layer (i.e., the inorganic insulating portion IL) arranged in the bending region BA is replaced with the organic insulating layer 160a, thereby reducing the stress in the bending region BA.

[0190] refer to Figure 11and Figure 12 The first conductive line CL1 and the second conductive line CL2 are configured to be separated by a separation region SA. The first conductive line CL1 may be located at the outermost edge of the first fan-out portion 21, and the second conductive line CL2 may be located at the outermost edge of the second fan-out portion 22 adjacent to the first fan-out portion 21.

[0191] The first conductive line CL1 may include a first upper conductive layer CL1a located in the first non-display area NDA1, a first lower conductive layer CL1b located in the second non-display area NDA2, and a first connecting conductive layer CL1c located in the bending area BA.

[0192] The second conductive line CL2 may include a second upper conductive layer CL2a located in the first non-display area NDA1, a second lower conductive layer CL2b located in the second non-display area NDA2, and a second connecting conductive layer CL2c located in the bending area BA.

[0193] The first upper conductive layer CL1a and the first lower conductive layer CL1b can be positioned on the same layer, and the first connecting conductive layer CL1c can be positioned on a different layer than the layers on which the first upper conductive layer CL1a and the first lower conductive layer CL1b are positioned. (Reference) Figure 12 The first upper conductive layer CL1a and the first lower conductive layer CL1b can be positioned on the gate insulating layer 120, and the first connecting conductive layer CL1c can be positioned on the organic insulating layer 160a and the interlayer insulating layer 130.

[0194] The first upper conductive layer CL1a and the first lower conductive layer CL1b may comprise the same material as the material used to form the gate electrode 213 of the TFT 210, and the first interconnect conductive layer CL1c may comprise the same material as the material used to form the source electrode 215a and the drain electrode 215b. When the first and second layers comprise the same material, the first and second layers can be formed in the same patterning process and can be directly positioned on the same surface of the lower layer.

[0195] The interlayer insulating layer 130 may be located between the first upper conductive layer CL1a, the first lower conductive layer CL1b, and the first connecting conductive layer CL1c. The first upper conductive layer CL1a and the first connecting conductive layer CL1c, as well as the first lower conductive layer CL1b and the first connecting conductive layer CL1c, may be electrically connected to each other via contact holes CT passing through the interlayer insulating layer 130.

[0196] The second upper conductive layer CL2a and the second lower conductive layer CL2b of the second conductive line CL2 can be positioned on the same layer, and the second connecting conductive layer CL2c can be positioned on a different layer than the layers on which the second upper conductive layer CL2a and the second lower conductive layer CL2b are positioned.

[0197] The first upper conductive layer CL1a and the second upper conductive layer CL2a, located in the first non-display area NDA1, can be located on the same layer, and the first lower conductive layer CL1b and the second lower conductive layer CL2b, located in the second non-display area NDA2, can be located on the same layer. In an embodiment, the first upper conductive layer CL1a and the second upper conductive layer CL2a, as well as the first lower conductive layer CL1b and the second lower conductive layer CL2b, can be located on the same layer.

[0198] The power supply section ELV can be located in the separate area SA. Figure 11 The power supply section ELV shown may be part of the connection line of the first power supply section 40 or the second power supply section 50 in one of the above embodiments.

[0199] refer to Figure 13 The power supply section ELV may include the same material as the source electrode 215a and drain electrode 215b used to form the TFT 210. Except for the curved region BA, in the first non-display region NDA1 and the second non-display region NDA2, the power supply section ELV may include the same material as the source electrode 215a and drain electrode 215b used to form the TFT 210.

[0200] The power supply section ELV does not overlap with the first connecting conductive layer CL1c and the second connecting conductive layer CL2c in the curved region BA. The power supply section ELV may overlap with the first upper conductive layer CL1a and the second upper conductive layer CL2a, as well as the first lower conductive layer CL1b and the second lower conductive layer CL2b in the first non-display region NDA1 and the second non-display region NDA2.

[0201] Figure 14 This is a schematic plan view illustrating a portion of a display device according to an embodiment, and Figure 15 yes Figure 14 A partial plan view of E.

[0202] exist Figure 14 In addition to the above embodiments, the display device may further include a bridging member 60. Figure 14 based on Figure 9 The bridging member 60 can be applied to other embodiments.

[0203] refer to Figure 12 , Figure 14 and Figure 15 The bridging component 60 can Figure 12 The touch unit 530 is connected to the display panel. Power applied to the display panel can be transmitted to the touch unit 530 via the bridging member 60.

[0204] The bridging member 60 can be positioned in the non-display area NDA at the outer edge of the fan-out portion 20. In Figure 14 , the bridging member 60 can be positioned in each of the first non-display area NDA1 and the second non-display area NDA2.

[0205] The fan-out structures of the first to third fan-out portions 21, 22, and 23 can reduce the total width of the fan-out portion 20 in the first direction D1. Accordingly, the width of the first non-display area NDA1 in the first direction D1 can be reduced and / or the portion of the first non-display area NDA1 outside the fan-out portion 20 can be maximized. Accordingly, the bridging member 60 can be easily formed.

[0206] It is advantageous that the bridging member 60 is sufficiently separated from the fan-out portion 20. Noise appears due to the charging / discharging of the fan-out portion 20, and if the bridging member is very close to the fan-out portion 20, such noise may affect the signal transmitted to the touch unit 530 by the bridging member 60.

[0207] In an embodiment, the fan-out portion 20 is shielded by the multi-line structures of the first power supply portion 40 and the second power supply portion 50, so that the influence of the noise generated due to the charging / discharging of the fan-out portion 20 can be minimized.

[0208] Figure 16 is a plan view schematically illustrating a part of a display device according to an embodiment.

[0209] Refer to Figure 16 , the fan-out portion 20 may include a first fan-out portion 21, two second fan-out portions 22, two third fan-out portions 23, and two fourth fan-out portions 24. The first fan-out portion 21 may be positioned at the center of the pad area PDA, the second fan-out portions 22 may be positioned at two opposite sides (left and right) of the first fan-out portion 21, the third fan-out portions 23 may be positioned at two opposite sides (left and right) of the two second fan-out portions 22, and the fourth fan-out portions 24 may be positioned at two opposite sides (left and right) of the third fan-out portions 23.

[0210] The first fan-out portion 21 and the second fan-out portion 22 can be separated by a first separation region SA1 in the bending region BA. The second fan-out portion 22 and the third fan-out portion 23 can be separated by a second separation region SA2 in the bending region BA. The third fan-out portion 23 and the fourth fan-out portion 24 can be separated by a third separation region SA3 in the bending region BA. The first to third separation regions SA1, SA2, and SA3 can be mostly located in the bending region BA, and a part of the first to third separation regions SA1, SA2, and SA3 can extend into the first non-display region NDA1 and the second non-display region NDA2.

[0211] Reference Figure 16 , the display device can include a first power supply portion 40 and a second power supply portion 50 each having a multi-line structure. Figure 16 The structures of the first power supply portion 40 and the second power supply portion 50 are similar to the structures illustrated in Figure 9 . The structure of the fan-out portion 20 and the arrangement of the connection lines are different from the structure of the fan-out portion 20 and the arrangement of the connection lines in Figure 9 .

[0212] In Figure 16 , the first connection line 40c1 of the first power supply portion 40 can be in the first separation region SA1, the second connection line 40c2 of the first power supply portion 40 can be in the second separation region SA2, the third connection line 50c1 of the second power supply portion 50 can be in the third separation region SA3, and the fourth connection line 50c2 can be outside the fan-out portion 20. At least a part of the fan-out portion 20 can be located between each pair of the first to fourth connection lines 40c1, 40c2, 50c1, and 50c2.

[0213] The first fan-out portion 21 can be located between two opposing first connection lines 40c1. The second fan-out portion 22 can be located between the first connection line 40c1 and the second connection line 40c2. The third fan-out portion 23 can be located between the second connection line 40c2 and the third connection line 50c1. The fourth fan-out portion 24 can be located between the third connection line 50c1 and the fourth connection line 50c2.

[0214] Since the first power supply portion 40 and the second power supply portion 50 have a multi-line structure, the heat generated by the wiring can be effectively dissipated and dispersed. Advantageously, the light emission uniformity of the display unit 10 can be optimized. The multi-line structures of the power supply portions 40 and 50 and the inclined portions of the fan-out portion 20 can minimize the width of the non-display region NDA.

[0215] Figure 18 is a schematic plan view illustrating a part of a display device according to an embodiment.

[0216] In the above embodiment, the driving circuit portion 30 is directly positioned on the substrate 100. Refer to Figure 18 , the driving circuit portion 30 is formed on a flexible printed circuit board (FPCB), and the FPCB can be electrically connected to the pad portions 32, 34, and 36 of the display panel. The driving circuit portion 30 can be controlled by the controller 70.

[0217] According to an embodiment, in the display device, the non-display area is reduced and the light emission uniformity is optimized.

[0218] The embodiments described herein should be understood only in a descriptive sense and not for purposes of limitation. The description of each feature or aspect within an embodiment is generally considered applicable to other embodiments.

[0219] Although the embodiments have been described with reference to the drawings, various changes can be made without departing from the scope defined by the appended claims.

Claims

1. A display device, comprising: A substrate, the substrate comprising a display area, a first non-display area, a curved area and a second non-display area arranged sequentially; A display unit positioned in the display area; A wiring structure is positioned in a first non-display area, a curved area, and a second non-display area, and includes a first wiring group and a second wiring group that overlap with the curved area and are spaced apart from each other. A first power supply structure includes a first conductive line and a second conductive line respectively positioned in the first non-display area and the second non-display area and extending along a first direction, and includes a first connecting line that connects the first conductive line to the second conductive line in a second direction intersecting the first direction and is positioned between the first wiring group and the second wiring group. A touch unit is located above the display unit and includes touch electrodes; as well as A bridging component is located in at least one of the first non-display area and the second non-display area and electrically connects the touch unit and the display unit. Wherein, the first wiring group includes a first wiring, and the second wiring group includes a second wiring. Each of the first and second wirings includes a first conductive layer positioned in the first non-display area and extending obliquely relative to the first and second directions, a second conductive layer positioned in the second non-display area and extending obliquely relative to the first and second directions, and a connecting layer positioned in the curved region and connecting the first conductive layer to the second conductive layer in the second direction. Wherein, the first conductive line overlaps with the first conductive layer of each of the first wiring and the second wiring, which extends obliquely relative to the first direction and the second direction, and the second conductive line overlaps with the second conductive layer of each of the first wiring and the second wiring, which extends obliquely relative to the first direction and the second direction.

2. The display device according to claim 1, wherein, The first connecting line overlaps with the curved region.

3. The display device according to claim 1, wherein, The edge of the first wiring group intersects the opposite edge of the first connecting line in the plan view of the display device.

4. The display device according to claim 1, wherein, The first power supply structure is electrically connected to the electrodes of the display unit.

5. The display device of claim 1, further comprising a second power supply structure positioned between the first conductive line and the second conductive line, spaced apart from the first connecting line, and overlapping each of the first non-display area, the curved area, and the second non-display area.

6. The display device according to claim 5, wherein, The display unit includes a pixel electrode, a common electrode overlapping the pixel electrode, and an emission layer between the pixel electrode and the common electrode, wherein the second power supply structure is electrically connected to the common electrode.

7. The display device according to claim 5, wherein, At least a portion of the second power supply structure overlaps with the wiring structure.

8. The display device according to claim 5, wherein, The second power supply structure is electrically connected to the common electrode of the display unit.

9. The display device according to claim 5, wherein, The wiring structure further includes a third wiring group that is separated from the second wiring group.

10. The display device according to claim 9, wherein, The first power supply structure further includes a second connecting line that is directly connected to each of the first conductive line and the second conductive line, and is positioned between the second wiring group and the third wiring group.

11. The display device according to claim 10, wherein, The second connecting line overlaps with the curved area.

12. The display device according to claim 9, wherein, At least a portion of the second power supply structure is positioned between the second wiring group and the third wiring group.

13. The display device according to claim 9, wherein, The second power supply structure includes a third conductive line and a fourth conductive line respectively positioned in the first non-display area and the second non-display area, and includes a third connecting line connecting the third conductive line to the fourth conductive line, wherein the third connecting line is positioned between the second wiring group and the third wiring group.

14. The display device according to claim 13, wherein, The third connecting line overlaps with the curved area.

15. The display device according to claim 5, wherein, The wiring structure further includes a third wiring group spaced apart from the second wiring group, and further includes a fourth wiring group spaced apart from the third wiring group.

16. The display device according to claim 15, wherein, The first power supply structure further includes a second connecting line positioned between the second wiring group and the third wiring group, and wherein the second power supply structure includes a third conductive line and a fourth conductive line positioned in the first non-display area and the second non-display area respectively, and includes a third connecting line connecting the third conductive line to the fourth conductive line and positioned between the third wiring group and the fourth wiring group or between the second wiring group and the third wiring group.

17. The display device according to claim 16, wherein, The third connecting line overlaps with the curved area.

18. The display device according to claim 1, wherein, A portion of the first connecting line overlaps with the curved area but does not overlap with the wiring structure.

19. The display device according to claim 1, wherein, Each of the wiring structure and the first power supply structure is arranged symmetrically based on an axis of symmetry.

20. The display device according to claim 1, wherein, The curved region is curved based on a bending axis parallel to the longitudinal direction of the first conductive line, wherein the first non-display region is narrower than the second non-display region in a direction perpendicular to the bending axis.

21. The display device according to claim 1, wherein, The display unit includes a thin-film transistor and a light-emitting device connected to the thin-film transistor. The thin-film transistor includes a semiconductor layer, a gate electrode overlapping the semiconductor layer, and an electrode layer electrically connected to the semiconductor layer. The first conductive layer and the second conductive layer include the same material as the gate electrode, and the connection layer includes the same material as the electrode layer.

22. The display device according to claim 21, wherein, The first power supply structure comprises the same material as the electrode layer.

23. A display device, comprising: A substrate, the substrate comprising a display area, a first non-display area, a curved area and a second non-display area arranged sequentially; A display unit positioned in the display area; A wiring structure, wherein the wiring structure is positioned in the first non-display area, the curved area and the second non-display area, and includes conductive lines spaced apart from each other; A first power supply structure includes a first conductive line and a second conductive line respectively positioned in the first non-display area and the second non-display area and extending along a first direction, and a first connecting line positioned in the first non-display area, the curved area and the second non-display area and extending along a second direction intersecting the first direction, wherein at least a portion of the first connecting line is positioned between the conductive lines. A touch unit is located above the display unit and includes touch electrodes; as well as A bridging component is located in at least one of the first non-display area and the second non-display area and electrically connects the touch unit and the display unit. The wiring structure includes a first wiring and a second wiring. Each of the first and second wirings includes a first conductive layer positioned in the first non-display area and extending obliquely relative to the first and second directions, a second conductive layer positioned in the second non-display area and extending obliquely relative to the first and second directions, and a connecting layer positioned in the curved region and connecting the first conductive layer to the second conductive layer in the second direction. Wherein, the first conductive line overlaps with the first conductive layer of each of the first wiring and the second wiring, which extends obliquely, and the second conductive line overlaps with the second conductive layer of each of the first wiring and the second wiring, which extends obliquely.

24. The display device according to claim 23, wherein, The curved region is curved based on a bending axis extending in the first direction. Wherein, the first non-display area is narrower than the second non-display area in the direction perpendicular to the bending axis, and The conductive lines and the portion of the first power supply structure are spaced apart from each other in the first direction.

25. The display device according to claim 23, wherein, A portion of the conductive wire overlaps with the curved area but does not overlap with the first power supply structure. Wherein, the first conductive line is directly connected to the first connecting line, and wherein the edge of the wiring structure intersects the opposite edge of the first conductive line in the plan view of the display device, and is inclined relative to each of the opposite edges of the first conductive line.

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