Display device
By designing a non-overlapping power line wiring structure in the display device, the problem of short circuits caused by static electricity is prevented from damaging the insulation layer, thus ensuring the normal operation of the display device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SAMSUNG DISPLAY CO LTD
- Filing Date
- 2021-10-09
- Publication Date
- 2026-07-21
Smart Images
Figure CN114388579B_ABST
Abstract
Description
[0001] This application claims priority to and all benefits arising therefrom of Korean Patent Application No. 10-2020-0137708, filed on October 22, 2020, the entire contents of which are incorporated herein by reference. Technical Field
[0002] This disclosure relates to a display device. Background Technology
[0003] Display devices are devices for displaying images on a screen, and include liquid crystal displays (“LCDs”) and organic light-emitting diode (“OLEDs”) devices. Display devices are used in a variety of electronic devices such as mobile phones, GPS devices, digital cameras, e-books, portable gaming devices, or various terminals.
[0004] Unlike LCDs, OLED devices are self-emissive and do not require a separate light source, thus reducing their thickness and weight. Furthermore, OLED devices offer advanced features such as low power consumption, high brightness, and fast response times.
[0005] When static electricity is generated in the display device, it may be introduced into the display device through the wiring supplied to it. When static electricity is introduced into the display device, it may damage the insulation layer or switching elements. Furthermore, due to damage to the insulation layer, wiring located on the upper side of the insulation layer and wiring located on the lower side of the insulation layer may be short-circuited. Summary of the Invention
[0006] The described technology has been dedicated to providing display devices that prevent defects when static electricity is generated and input to the display device.
[0007] An embodiment provides a display device, including: a substrate, including a display area and a peripheral area located outside the display area; a first power line located in the peripheral area of the substrate; a first insulating layer located on the first power line; and a second power line located on the first insulating layer and located in the peripheral area of the substrate, wherein the first power line includes a first main wiring extending in a first direction and a first sub-wiring branching from the first main wiring toward the display area, the second power line includes a second main wiring extending in the first direction and a second sub-wiring branching from the second main wiring toward the display area, the first main wiring includes an inner edge located near the first sub-wiring and facing the display area and an outer edge opposite to the inner edge, and the second main wiring does not overlap with the inner edge of the first main wiring in a plan view.
[0008] The second main wiring may include an inner edge located near the second sub-wiring and facing the display area, and an outer edge opposite to the inner edge of the second main wiring, and the inner edge of the second main wiring may be spaced apart from the inner edge of the first main wiring in a plan view.
[0009] The spacing between the inner edge of the second main wiring and the edge of the first main wiring in a second direction perpendicular to the first direction can be equal to or greater than about 1 micrometer (μm) and equal to or less than about 500 μm.
[0010] The second main wiring may overlap with a portion of the first main wiring in the plan view, and the width of the portion of the first main wiring and the second main wiring that do not overlap in the second direction perpendicular to the first direction may be equal to or greater than 1 μm and equal to or less than 500 μm.
[0011] The display device may further include: a first power line electrically connected to a first power line and located in the display area of the substrate; and a second power line electrically connected to a second power line and located in the display area of the substrate.
[0012] The first and second electric field lines can extend to the peripheral area of the substrate.
[0013] The display device may further include: a second insulating layer located on the first power line and the second power line, wherein the first power line may be located on the second insulating layer.
[0014] The display device may further include: a connecting electrode located on a first insulating layer and connected to a first power line and a first power supply line.
[0015] The first insulating layer and the second insulating layer may be defined in a first opening that overlaps with the first electric field line in the plan view, and the connecting electrode may be connected to the first electric field line through the first opening. The first insulating layer may be defined in a second opening that overlaps with the first sub-wire line in the plan view, and the connecting electrode may be connected to the first sub-wire line through the second opening.
[0016] The first and second power lines can be located on the same layer as the first power line.
[0017] The display device may further include: a connecting electrode located on a first insulating layer and connected to a first power line and a first power supply line.
[0018] The first and second insulating layers may be defined in a third opening that overlaps with the second electric field line and the second sub-wire in the plan view, and the second sub-wire may be connected to the second electric field line through the third opening.
[0019] The first electric field line may include a first portion and a second portion located in different layers from each other, and the display device may further include: a second insulating layer located between the first portion and the second portion; and connecting electrodes connecting the first portion and the second portion.
[0020] The first insulating layer and the second insulating layer may be defined in a fourth opening that overlaps with a first portion of the first electric field line in the plan view, and the connecting electrode may be connected to the first portion of the first electric field line through the fourth opening. The first insulating layer may be defined in a fifth opening that overlaps with a second portion of the first electric field line in the plan view, and the connecting electrode may be connected to the second portion of the first electric field line through the fifth opening.
[0021] A driving voltage can be applied to the first power line, and a common voltage can be applied to the second power line.
[0022] Another embodiment provides a display device, including: a substrate including a display area and a peripheral area located outside the display area; a first power line located in the peripheral area of the substrate; an insulating layer located on the first power line; a second power line located on the insulating layer and located in the peripheral area of the substrate; a first electric line electrically connected to the first power line and located in the display area of the substrate; and a second electric line electrically connected to the second power line and located in the display area of the substrate, wherein the first power line includes a first main wiring extending in a first direction and a first sub-wiring branching from the first main wiring toward the first electric line, the second power line includes a second main wiring extending in the first direction and a second sub-wiring branching from the second main wiring toward the second electric line, and the second main wiring does not overlap with the portion of the first sub-wiring branching from the first main wiring in a plan view.
[0023] The first main wiring may include an inner edge located near the first sub-wiring and parallel to the first direction, and an outer edge opposite to the inner edge, and the second main wiring may not overlap with the inner edge of the first main wiring.
[0024] The outer edge of the first main wiring can be parallel to the first direction, and the second main wiring can overlap with the outer edge of the first main wiring in the plan view.
[0025] The second main wiring may include an inner edge located near the second sub-wiring and an outer edge opposite to the inner edge of the second main wiring, and the outer edge of the second main wiring may correspond to the outer edge of the first main wiring.
[0026] The second main wiring may include an inner edge located near the second sub-wiring and an outer edge opposite to the inner edge of the second main wiring, and the spacing between the inner edge of the second main wiring and the edge of the first main wiring in a second direction perpendicular to the first direction may be equal to or greater than about 1 μm and equal to or less than about 500 μm.
[0027] According to an embodiment, when static electricity is generated in the display device, defects are prevented from occurring in the display device. Attached Figure Description
[0028] Figure 1A top plan view of a display device according to an embodiment is shown.
[0029] Figure 2 A top plan view of a display device according to an embodiment is shown.
[0030] Figure 3 The following is an illustration of a display device according to an embodiment. Figure 2 The cross-sectional view of line III-III'.
[0031] Figures 4 to 6 Top plan views are shown in the order in which the display device according to the embodiment was manufactured.
[0032] Figure 7 A top plan view of a display device according to a reference example is shown.
[0033] Figure 8 The following is an illustration of a display device according to a reference example. Figure 7 A cross-sectional view of line VIII-VIII'.
[0034] Figure 9 A cross-sectional view of a display device according to another embodiment is shown.
[0035] Figure 10 A cross-sectional view of a display device according to yet another embodiment is shown.
[0036] Figure 11 A top plan view of a display device according to an embodiment is shown.
[0037] Figure 12 The following is an illustration of a display device according to an embodiment. Figure 11 A cross-sectional view of line XII-XII'.
[0038] Figures 13 to 15 Top plan views are shown in the order in which the display device according to the embodiment was manufactured.
[0039] Figure 16 A top plan view of a display device according to an embodiment is shown.
[0040] Figure 17 The following is an illustration of a display device according to an embodiment. Figure 16 A cross-sectional view of line XVII-XVII'.
[0041] Figures 18 to 20 Top plan views are shown in the order in which the display device according to the embodiment was manufactured.
[0042] Explanation of reference numerals in the attached figures
[0043] 110: Substrate
[0044] 120: Second insulation layer
[0045] 160: First insulating layer
[0046] 210: First power line
[0047] 212: First main cabling
[0048] 214: First sub-wiring
[0049] 220: Second power supply line
[0050] 222: Second main cabling
[0051] 224: Second Sub-wiring
[0052] 310: First Electric Power Line
[0053] 320: Second Power Line Detailed Implementation
[0054] The invention will be described more fully below with reference to the accompanying drawings, in which embodiments of the invention are illustrated. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention.
[0055] Parts irrelevant to the description will be omitted to more clearly describe the invention, and throughout the specification, the same elements will be represented by the same reference numerals.
[0056] For better understanding and ease of description, the dimensions and thicknesses of each configuration shown in the accompanying drawings are arbitrary, but the invention is not limited thereto. For clarity, the thicknesses of layers, films, panels, regions, etc., have been exaggerated. For ease of illustration, the thicknesses of some layers and regions have been exaggerated.
[0057] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular forms “a” and “the (described)” are intended to include the plural forms (including “at least one”) unless the context clearly indicates otherwise. “At least one” should not be construed as limiting “a”. “Or” means “and / or”. As used herein, the term “and / or” includes any and all combinations of one or more of the associated listed items. It will be further understood that, when used in this specification, the terms “comprising” and / or “including” or “having” and / or “containing” indicate the presence of the stated features, areas, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, areas, integrals, steps, operations, elements, components, and / or combinations thereof.
[0058] It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, the element may be directly on that other element, or an intervening element may be present. Conversely, when an element is referred to as being "directly on" another element, no intervening element is present. The terms "on" or "above" mean located on or below a portion of an object, and do not necessarily mean located on the upper side of that portion of the object based on the direction of gravity.
[0059] Furthermore, relative terms such as “on,” “below,” or “bottom,” and “above” or “top” may be used herein to describe the relationship between one element and another as shown in the accompanying drawings. It will be understood that the relevant terms are intended to include different orientations of the device other than those shown in the drawings. For example, if the device in one of the drawings is flipped, an element described as being “below” the other element will be oriented to be “above” the other element. Thus, the exemplary term “below” may encompass both “below” and “above” orientations depending on the specific orientation of the drawing. Similarly, if the device in one of the drawings is flipped, an element described as being “below” or “under” the other element will be oriented to be “above” the other element. Thus, the exemplary terms “below” and “under” may encompass both “above” and “below” orientations.
[0060] Unless explicitly described as the opposite, the word “including” and its variations (such as “containing” or “comprising”) shall be understood to imply the inclusion of the stated element but not the exclusion of any other element.
[0061] The phrase "in a plan view" means viewing a portion of an object from the top, while the phrase "in a cross-sectional view" means viewing a portion of an object from the side as a vertically cut section.
[0062] It will be understood that while the terms “first,” “second,” “third,” etc., may be used herein to describe various elements, components, regions, layers, and / or parts, these elements, components, regions, layers, and / or parts should not be limited by these terms. These terms are used only to distinguish one element, component, region, layer, or part from another. Therefore, without departing from the teachings of this document, the first element, component, region, layer, or part discussed below may be referred to as a second element, second component, second region, second layer, or second part.
[0063] Given the measurements under discussion and the errors associated with a particular number of measurements (i.e., limitations of the measurement system), the terms “approximately” or “about” as used herein include the values and mean within an acceptable range of deviation from the particular values as determined by one of ordinary skill in the art. For example, “approximately” may mean within one or more standard deviations of the value, or within ±30%, ±20%, ±10%, or ±5% of the value.
[0064] Now refer to Figures 1 to 6 A display device according to an embodiment is described.
[0065] Figure 1 A top plan view of a display device according to an embodiment is shown. Figure 2 A top plan view of a display device according to an embodiment is shown, and Figure 3 The following is an illustration of a display device according to an embodiment. Figure 2 The cross-sectional view of line III-III'. Figures 4 to 6 Top plan views are shown in the order in which the display device according to the embodiment was manufactured.
[0066] like Figure 1 As shown, the display device according to an embodiment includes a substrate 110.
[0067] The substrate 110 may include a display area DA and a peripheral area PA. The display area DA is the area in which pixels, including light-emitting diodes (“LEDs”) and transistors, are formed to display an image, and the peripheral area PA is the area in which no image is displayed. The peripheral area PA is located outside the display area DA and may surround the display area DA. The peripheral area PA is the area in which wiring and pads for supplying drive signals to the pixels are provided.
[0068] Multiple pixels, including transistors and light-emitting diodes (“LEDs”), can be located in the display area DA. These multiple pixels can be arranged in various forms (e.g., in a matrix).
[0069] Multiple power lines and pads for transmitting drive signals, such as voltage or signals, to pixels located in the display area DA can be located in the peripheral area PA. The multiple power lines may include a first power line 210 and a second power line 220. The first power line 210 and the second power line 220 may extend as parallel lines. The first power line 210 and the second power line 220 may extend generally in a first direction D1. The first power line 210 and the second power line 220 may be disposed in the peripheral area PA. The first direction D1 may be referred to as the row direction, and may be parallel to the edge of the substrate 110 and parallel to the boundary between the display area DA and the peripheral area PA.
[0070] A driving voltage can be applied to the first power line 210. A common voltage can be applied to the second power line 220. That is, the first power line 210 can be a driving voltage supply wiring, and the second power line 220 can be a common voltage supply wiring. However, the invention is not limited thereto, and in another embodiment, a common voltage can be applied to the first power line 210, and a driving voltage can be applied to the second power line 220. Furthermore, other voltages can be applied to the first power line 210 and the second power line 220.
[0071] Although not shown, a flexible printed circuit board (“FPCB”) may be attached to the peripheral area PA. The FPCB may be electrically connected to the pad portion. The FPCB may be electrically connected to the pad portion via an anisotropic conductive film (“ACF”). The FPCB may include a driver integrated circuit (“IC”), and drive signals output by the driver IC may be supplied to power lines via multiple pads of the pad portion. That is, the drive voltage and common voltage output by the driver IC may be supplied to the first power line 210 and the second power line 220 via the pad portion, respectively.
[0072] The display device according to an embodiment may further include a first power line 310 and a second power line 320. The first power line 310 and the second power line 320 may be located in a display area DA. The first power line 310 and the second power line 320 may extend as parallel lines. The first power line 310 and the second power line 320 may extend in a second direction D2, different from the first direction D1. The second direction D2 may be referred to as a column direction intersecting the first direction D1. The second direction D2 may perpendicularly pass through the first direction D1.
[0073] The first power line 310 can be connected to the first power line 210. Therefore, the first power line 310 can receive a driving voltage through the first power line 210. Furthermore, the second power line 320 can be connected to the second power line 220. Therefore, the second power line 320 can receive a common voltage through the second power line 220. The first power line 310 and the second power line 320 can extend to the peripheral area PA. The first power line 310 can be connected to the first power line 210 in the peripheral area PA. Furthermore, the second power line 320 can be connected to the second power line 220 in the peripheral area PA. The first power line 310 and the second power line 320 can be connected to the first power line 210 and the second power line 220 respectively via bridging wiring, and in this case, the bridging wiring can extend to the display area DA. Depending on the situation, the first power line 310 and the second power line 320 can be located in the display area DA.
[0074] The display device according to an embodiment may include a plurality of first power lines 310 and a plurality of second power lines 320. In this case, the first power line 210 may be connected to the plurality of first power lines 310, and the second power line 220 may be connected to the plurality of second power lines 320.
[0075] Now refer to Figures 2 to 6 The first power line 210, the second power line 220, the first electric line 310, and the second electric line 320 of the display device according to the embodiment are described.
[0076] A first conductive layer, including a first electric field line 310 and a second electric field line 320, may be located on the substrate 110. Figure 4 The first conductive layer is shown.
[0077] The substrate 110 may include at least one of polystyrene, polyvinyl alcohol, polymethyl methacrylate, polyethersulfone, polyacrylate, polyetherimide, polyethylene naphthalate, polyethylene terephthalate, polyphenylene sulfide, polyarylate, polyimide, polycarbonate, cellulose triacetate, and cellulose acetate propionate. The substrate 110 may be a rigid substrate or a flexible substrate that is bent, folded, or rolled. The substrate 110 may be a single layer or multiple layers. The substrate 110 may be formed by alternately stacking at least one base layer and at least one inorganic layer, wherein the at least one base layer has sequentially stacked polymer resins.
[0078] The first electric field line 310 and the second electric field line 320 can be located on the substrate 110 and can extend parallel to each other. Figures 2 to 6 The illustration shows the ends of the first power line 310 and the second power line 320. The first power line 310 and the second power line 320 can be located in the display area DA of the substrate 110 and can extend to the peripheral area PA. The first power line 310 and the second power line 320 can extend in a second direction D2, which is their longitudinal direction. In this case, the second direction D2 can be a column direction. The first power line 310 and the second power line 320 can be arranged to be spaced apart from each other by a predetermined interval in a plan view.
[0079] The second insulating layer 120 may be located on the first conductive layer including the first electric field line 310 and the second electric field line 320. The second conductive layer including the first power line 210 may be located on the second insulating layer 120. That is, the second insulating layer 120 may be located between the first conductive layer and the second conductive layer. Figure 5 The first conductive layer and the second conductive layer are shown.
[0080] The first power line 210 includes a first main wiring 212 and a first sub-wiring 214. The first main wiring 212 and the first sub-wiring 214 are located in the same layer and are integrally formed (i.e., are a single unit). The first main wiring 212 may extend in a first direction D1, which is its longitudinal direction. The first direction D1 may be a row direction. The first main wiring 212 may extend in a direction different from the direction in which the first power line 310 extends. The first main wiring 212 may extend in a direction passing through the first power line 310. The first sub-wiring 214 branches from the first main wiring 212. The first sub-wiring 214 protrudes from the first main wiring 212 toward the first power line 310. That is, the first sub-wiring 214 branches from the first main wiring 212 toward the display area DA. The first sub-wiring 214 may be located near the end of the first power line 310. The first sub-wiring 214 may extend parallel to the first power line 310. That is, the first sub-wiring 214 may extend in a second direction D2. The first sub-wiring 214 and the first power line 310 can be located on the same virtual straight line extending in the second direction D2. However, the invention is not limited thereto, and the shapes of the first main wiring 212 and the first sub-wiring 214, as well as the positional relationship between the first main wiring 212 and the first sub-wiring 214 and the first power line 310, can be modified in various ways.
[0081] The first insulating layer 160 may be located on the second conductive layer including the first power line 210. The third conductive layer including the second power line 220 may be located on the first insulating layer 160. That is, the first insulating layer 160 may be located between the second conductive layer and the third conductive layer. Figure 6 The diagram illustrates the first conductive layer, the second conductive layer, and the third conductive layer.
[0082] The second power line 220 includes a second main wiring 222 and a second sub-wiring 224. The second main wiring 222 and the second sub-wiring 224 are located in the same layer and are integrally formed (i.e., they are a single unit). The second main wiring 222 can extend in a first direction D1, which is its longitudinal direction. The first direction D1 can be a row direction. The second main wiring 222 can extend in a direction different from the direction in which the second power line 320 extends. The second main wiring 222 can extend in a direction passing through the second power line 320. The second sub-wiring 224 branches off from the second main wiring 222. The second sub-wiring 224 protrudes from the second main wiring 222 toward the second power line 320. That is, the second sub-wiring 224 branches off from the second main wiring 222 toward the display area DA. The second sub-wiring 224 can be located near the end of the second power line 320. The second sub-wiring 224 can extend parallel to the second power line 320. That is, the second sub-wiring 224 can extend in a second direction D2. The second sub-wiring 224 and the second power line 320 can be located on the same virtual straight line extending in the second direction D2. However, the invention is not limited thereto, and the shapes of the second main wiring 222 and the second sub-wiring 224, as well as the positional relationship between the second main wiring 222 and the second sub-wiring 224 and the second power line 320, can be modified in various ways.
[0083] The second main wiring 222 may overlap a portion of the first main wiring 212 in a plan view. The first main wiring 212 may include an inner edge located near the first sub-wiring 214 and facing the display area DA, and an outer edge opposite to the inner edge. The inner and outer edges of the first main wiring 212 may extend in a first direction D1. The first sub-wiring 214 protrudes from the inner edge of the first main wiring 212. The second main wiring 222 does not overlap with the inner edge of the first main wiring 212 in a plan view. The second main wiring 222 may overlap with the outer edge of the first main wiring 212 in a plan view. The second main wiring 222 may include an inner edge located near the second sub-wiring 224 and facing the display area DA, and an outer edge opposite to the inner edge. The inner and outer edges of the second main wiring 222 may extend in a first direction D1. The second sub-wiring 224 protrudes from the inner edge of the second main wiring 222. The inner edge of the second main wiring 222 is separated from the inner edge of the first main wiring 212, and the spacing d between the inner edges of the first main wiring 212 and the inner edges of the second main wiring 222 in the second direction D2 is equal to or greater than approximately 1 micrometer (μm), and may be equal to or less than approximately 500 μm. That is, the width of the area where the first main wiring 212 and the second main wiring 222 do not overlap in the second direction D2 may be equal to or greater than approximately 1 μm, and may be equal to or less than approximately 500 μm.
[0084] Therefore, the display device according to the embodiment may have a configuration in which a portion of the first sub-wire 214 branches off from the first main wire 212, and the peripheral area of that portion, is not covered by the third conductive layer. Damage caused by static electricity may occur in the peripheral area of the portion where the first sub-wire 214 branches off from the first main wire 212. For example, a portion of the first insulating layer 160 located on the peripheral area of the portion where the first sub-wire 214 branches off from the first main wire 212 may be damaged by static electricity. In this case, when the wiring is located on the damaged first insulating layer 160, the corresponding wiring and the first power line 210 may be short-circuited through the damaged first insulating layer 160. The display device according to the embodiment can prevent short circuits by not providing the third conductive layer on the portion where the first sub-wire 214 branches off from the first main wire 212. That is, in the plan view, the second main wire 222 is configured to not overlap with the inner edge of the first main wire 212 but is spaced apart from the inner edge of the first main wire 212 by a predetermined interval, thereby preventing short circuits.
[0085] It has been described that the second main wiring 222 partially overlaps with the first main wiring 212 in a plan view, but the invention is not limited thereto. In another embodiment, the second main wiring 222 may not overlap with the first main wiring 212. That is, the second main wiring 222 may not overlap with the inner and outer edges of the first main wiring 212 in a plan view. In this case, the second main wiring 222 may be positioned to be spaced apart from the first main wiring 212 in a plan view. That is, in a plan view, the second main wiring 222 may not overlap with the inner and outer edges of the first main wiring 212 but may be positioned to be spaced apart from the outer edge of the first main wiring 212 by a predetermined interval.
[0086] exist Figure 2 In the illustration, the width of the second main wiring 222 in the second direction D2 is shown to be smaller than the width of the first main wiring 212 in the second direction D2. However, the invention is not limited thereto. Furthermore, the outer edge of the second main wiring 222 is shown to correspond to the outer edge of the first main wiring 212, but the invention is not limited thereto. In another embodiment, the width of the first main wiring 212 in the second direction D2 may be substantially the same as the width of the second main wiring 222 in the second direction D2. In this case, the outer edge of the first main wiring 212 may be positioned closer to the display area DA than the outer edge of the second main wiring 222, such that the inner edge of the first main wiring 212 does not overlap with the second main wiring 222 in the plan view. Furthermore, in yet another embodiment, the width of the first main wiring 212 in the second direction D2 may be smaller than the width of the second main wiring 222 in the second direction D2.
[0087] The second sub-wiring 224 may at least partially overlap with the second power line 320. A first insulating layer 160 and a second insulating layer 120 may be located between the second sub-wiring 224 and the second power line 320. An opening 163 may be defined within the first insulating layer 160 and the second insulating layer 120. The second sub-wiring 224 may connect to the second power line 320 through the opening 163. A common voltage may be applied to the second power line 220, and the second power line 320 may receive the common voltage through the second power line 220.
[0088] The third conductive layer may further include a connection electrode 410. The connection electrode 410 may be located on the first insulating layer 160 and may overlap with the first sub-wiring 214 of the first electric field line 310 and the first power line 210 in a plan view. One end of the connection electrode 410 may overlap with the first electric field line 310. The first insulating layer 160 may define an opening 161 therein, and the opening 161 may overlap with the connection electrode 410 and the first electric field line 310 in a plan view. The opening 161 may also be located in the second insulating layer 120. The connection electrode 410 can be connected to the first electric field line 310 through the opening 161. The other end of the connection electrode 410 may overlap with the first sub-wiring 214. The first insulating layer 160 may define an opening 162 therein, and the opening 162 may overlap with the connection electrode 410 and the first sub-wiring 214 in a plan view. The connection electrode 410 can be connected to the first sub-wiring 214 through the opening 162. Therefore, the first power line 210 can be connected to the first electric field line 310 through the connection electrode 410. A driving voltage can be applied to the first power line 210, and the first power line 310 can receive the driving voltage through the first power line 210.
[0089] At least one of the first, second, and third conductive layers may comprise at least one metal or an alloy thereof, including copper (Cu), aluminum (Al), magnesium (Mg), silver (Ag), gold (Au), platinum (Pt), palladium (Pd), nickel (Ni), neodymium (Nd), iridium (Ir), molybdenum (Mo), tungsten (W), titanium (Ti), chromium (Cr), and tantalum (Ta). The first, second, and third conductive layers may be configured as a single layer or multiple layers. For example, they may have a multilayer structure comprising a lower layer containing titanium and an upper layer containing copper.
[0090] The display device according to an embodiment may further include a semiconductor layer. Transistors configured with patterns located in the semiconductor layer, the first conductive layer, the second conductive layer, and the third conductive layer may be located in the display area DA of the display device according to an embodiment. Transistors may be positioned for individual pixels, and a pixel may include multiple transistors. Furthermore, pixel electrodes connected to the transistors may be further provided, and light-emitting diodes (“LEDs”) may be configured on the pixel electrodes by stacking an emitter layer and a common electrode. Each pixel may be connected to a first power line 310 and a second power line 320 to receive a driving voltage and a common voltage.
[0091] Additionally, an encapsulation layer comprising inorganic and organic insulating materials may be located on the common electrode, and a filler layer comprising a filler may be located on the encapsulation layer. A capping layer comprising an insulating material, a color conversion layer, and a transmission layer may be located on the filler layer. The color conversion layer may be located on some pixels, and the transmission layer may be located on some other pixels. The color conversion layer may comprise semiconductor nanocrystals, and the semiconductor nanocrystals may comprise at least one of quantum dot materials and phosphors for converting incident light into a color. The quantum dots can control the color of the emitted light according to the particle size, and the quantum dots can have various emission colors such as blue, red, or green. The transmission layer can transmit incident light and may comprise a polymer material.
[0092] Now refer to Figure 7 and Figure 8 The display device according to the reference example and the display device according to the embodiment will be compared with each other.
[0093] Figure 7 A top plan view of a display device according to a reference example is shown, and Figure 8 The following is an illustration of a display device according to a reference example. Figure 7 A cross-sectional view of line VIII-VIII'.
[0094] like Figure 7 and Figure 8 As shown, the display device according to the reference example may include a substrate 110, a first power line 210, a second power line 220, a first electric field line 310, and a second electric field line 320 in a manner similar to that of the display device according to the embodiment.
[0095] Regarding the display device according to the reference example, unlike the display device according to the embodiment, the second main wiring 222 may overlap with the first main wiring 212. The second main wiring 222 may overlap with the inner edge of the first main wiring 212. Therefore, the portion of the first sub-wiring 214 that branches off from the first main wiring 212 overlaps with the second main wiring 222 in the plan view. That is, the portion of the first sub-wiring 214 that branches off from the first main wiring 212 may have a configuration covered by a third conductive layer.
[0096] Static electricity may be generated during the manufacturing process of the display device, and the generated static electricity can be introduced into the first power line 310 and the first power supply line 210. In this case, the introduced static electricity may be induced in the area where the first sub-wire 214 branches from the first main wire 212, the end of the first sub-wire 214, and the end of the first power line 310, and the aforementioned area A, which is weak in static electricity, may be damaged. For example, the first insulating layer 160 located on the first main wire 212 may be damaged in the area where the first sub-wire 214 branches from the first main wire 212. In this case, the first main wire 212 located below the damaged first insulating layer 160 may be exposed. When the second main wire 222 is formed on the first insulating layer 160 in a subsequent process, the second main wire 222 and the first main wire 212 may be short-circuited. Since the first main wire 212, which is subject to a driving voltage, and the second main wire 222, which is subject to a common voltage, are short-circuited, an electrical defect is generated, and the display device may not be able to be driven properly. Since the corresponding areas (i.e., the ends of the first sub-wire 214 and the first power line 310) are already connected (i.e., electrically connected) to the connecting electrode 410, damage to the first insulating layer 160 near the ends of the first sub-wire 214 and the first power line 310 in the electrostatically weak region A will not cause the above-mentioned problem.
[0097] In the display device according to the embodiment, the portion of the first sub-wire 214 extending from the first main wire 212 does not overlap with the second main wire 222 in a plan view. That is, the display device according to the embodiment can prevent short circuits by not providing a third conductive layer at the portion where the first sub-wire 214 branches off from the first main wire 212.
[0098] Now refer to Figure 9 A display device according to another embodiment is described.
[0099] according to Figure 9 The display device of the embodiment shown primarily corresponds to that according to the reference. Figures 1 to 6 The display device of the described embodiment will not be described repeatedly, as the same parts will not be described again. The difference between this embodiment and the previous embodiment is that the first power line 210 is located in the first conductive layer.
[0100] Figure 9 A cross-sectional view of a display device according to another embodiment is shown.
[0101] like Figure 9 As shown, the display device according to this embodiment may include a substrate 110, a first power line 210, a second power line 220, a first electric power line 310, and a second electric power line 320.
[0102] In the previous embodiment, the first power line 210 may be located in the second conductive layer, and in this embodiment, the first power line 210 may be located in the first conductive layer.
[0103] The first power line 210 may be located in the same layer as the first power line 310. In this embodiment, the second insulating layer 120 and the first insulating layer 160 may be located on the first power line 210. The second insulating layer 120 and the first insulating layer 160 may be located between the first sub-wire 214 of the first power line 210 and the connecting electrode 410. The first insulating layer 160 may define an opening 162 therein, and the opening 162 may overlap with the connecting electrode 410 and the first sub-wire 214 in a plan view. The opening 162 may be located in the second insulating layer 120. The connecting electrode 410 can be connected to the first sub-wire 214 through the opening 162.
[0104] The display device according to this embodiment can be configured, in a manner similar to the previous embodiment, such that the peripheral region of the portion where the first sub-wire 214 branches from the first main wire 212 is not covered by the third conductive layer. The display device according to this embodiment can prevent short circuits by not providing the second main wire 222 on the portion where the first sub-wire 214 branches from the first main wire 212. That is, in a plan view, the second main wire 222 is configured such that it does not overlap with the inner edge of the first main wire 212 but is spaced apart from the inner edge of the first main wire 212 by a predetermined interval, thereby preventing short circuits.
[0105] Now refer to Figure 10 A display device according to yet another embodiment is described.
[0106] according to Figure 10 The display device of the embodiment shown primarily corresponds to that according to the reference. Figures 1 to 6 The display device of the described embodiment will not be described repeatedly, as the same parts will not be described again. The difference between this embodiment and the previous embodiment is that the first electric field line 310 is located in the second conductive layer.
[0107] Figure 10 A cross-sectional view of a display device according to yet another embodiment is shown.
[0108] like Figure 10As shown, the display device according to the embodiment may include a substrate 110, a first power line 210, a second power line 220, a first electric power line 310, and a second electric power line 320.
[0109] In the previous embodiment, the first electric field line 310 may be located in the first conductive layer, and in this embodiment, the first electric field line 310 may be located in the second conductive layer.
[0110] The first electric field line 310 may be located in the same layer as the first power line 210. A first insulating layer 160 may be located on the first electric field line 310. The first insulating layer 160 may define an opening 161 therein, and the opening 161 may overlap with the connecting electrode 410 and the first electric field line 310 in a plan view. The connecting electrode 410 may be connected to the first electric field line 310 through the opening 161.
[0111] The display device according to this embodiment can be configured in a manner similar to the previous embodiment, wherein the peripheral region of the portion of the first sub-wire 214 extending from the first main wire 212 is not covered by the third conductive layer. The display device according to this embodiment can prevent short circuits by not placing the second main wire 222 at the portion where the first sub-wire 214 branches off from the first main wire 212. That is, in a plan view, the second main wire 222 is configured such that it does not overlap with the inner edge of the first main wire 212 but is spaced apart from the inner edge of the first main wire 212 by a predetermined interval, thereby preventing short circuits.
[0112] Now refer to Figures 11 to 15 A display device according to an embodiment is described.
[0113] according to Figures 11 to 15 The display device of the embodiment shown primarily corresponds to that according to the reference. Figures 1 to 6 The display device of the described embodiment will not repeat the same parts. This embodiment differs from the previous embodiment in that the first power line 310 includes a first portion 312 and a second portion 314 located in different layers, and multiple openings are defined in the connectors of each wire, which will now be described.
[0114] Figure 11 A top plan view of a display device according to an embodiment is shown, and Figure 12 The following is an illustration of a display device according to an embodiment. Figure 11 A cross-sectional view of line XII-XII'. Figures 13 to 15 Top plan views are shown in the order in which the display device according to the embodiment was manufactured.
[0115] like Figures 11 to 15As shown, the display device according to the embodiment may include a substrate 110, a first power line 210, a second power line 220, a first electric power line 310, and a second electric power line 320.
[0116] First, a first conductive layer, including a portion of the first electric field line 310 and the second electric field line 320, may be located on the substrate 110. Figure 13 The first conductive layer is shown.
[0117] The first electric field line 310 may include a first portion 312 and a second portion 314. The first portion 312 of the first electric field line 310 may be located in a first conductive layer. The first portion 312 of the first electric field line 310 extends generally in a second direction D2. The first portion 312 of the first electric field line 310 may have a curved shape in a predetermined region and may extend obliquely relative to the second direction D2. The end of the first portion 312 may have a width wider than the other portions of the first portion 312. The end of the second electric field line 320 may have a width wider than the other portions of the second electric field line 320.
[0118] The second insulating layer 120 may be located on the first conductive layer including the first portion 312 of the first electric field line 310 and the second electric field line 320. The second conductive layer including the second portion 314 of the first electric field line 310 and the first power line 210 may be located on the second insulating layer 120. That is, the second insulating layer 120 may be located between the first conductive layer and the second conductive layer. Figure 14 The first conductive layer and the second conductive layer are shown.
[0119] The second portion 314 of the first electric field line 310 may have a curved shape within a predetermined region. The end of the second portion 314 of the first electric field line 310 may overlap with the end of the first portion 312 in a plan view. However, the invention is not limited thereto, and in another embodiment, the end of the second portion 314 of the first electric field line 310 may not overlap with the end of the first portion 312.
[0120] The first power line 210 includes a first main wiring 212 and a first sub-wiring 214. The first main wiring 212 may extend in a first direction D1, which is its longitudinal direction. The first sub-wiring 214 may protrude from the first main wiring 212 toward the first power line 310. That is, the first sub-wiring 214 branches off from the first main wiring 212 toward the display area DA. The first sub-wiring 214 may be located in a virtual straight line extending in a second direction D2 to the second portion 314 of the first power line 310. However, the invention is not limited thereto, and the shapes of the first main wiring 212 and the first sub-wiring 214, as well as their positional relationship with the first power line 310, can be modified in many ways.
[0121] The first insulating layer 160 may be located on the second conductive layer, which includes the second portion 314 of the first electric field line 310 and the first power line 210. The third conductive layer, which includes the second power line 220, may be located on the first insulating layer 160. That is, the first insulating layer 160 may be located between the second conductive layer and the third conductive layer. Figure 15 The diagram illustrates the first conductive layer, the second conductive layer, and the third conductive layer.
[0122] The second power line 220 includes a second main wiring 222 and a second sub-wiring 224. The second main wiring 222 may extend in a first direction D1, which is its longitudinal direction. The second sub-wiring 224 protrudes from the second main wiring 222 toward the second power line 320. That is, the second sub-wiring 224 branches off from the second main wiring 222 in the display area DA. The second sub-wiring 224 may have a curved shape in a predetermined area. The second sub-wiring 224 may extend substantially in a second direction D2, which is its longitudinal direction.
[0123] The second main wiring 222 may overlap a portion of the first main wiring 212. The inner edge of the second main wiring 222 does not overlap with the inner edge of the first main wiring 212. The outer edge of the second main wiring 222 may overlap with the outer edge of the first main wiring 212. The inner edge of the second main wiring 222 is spaced apart from the inner edge of the first main wiring 212 in the plan view, and the spacing distance d between the inner edge of the second main wiring 222 and the inner edge of the first main wiring 212 in the second direction D2 may be equal to or greater than approximately 1 μm and equal to or less than approximately 500 μm. That is, the width of the region where the first main wiring 212 and the second main wiring 222 do not overlap may be equal to or greater than approximately 1 μm and equal to or less than approximately 500 μm.
[0124] Therefore, the display device according to the embodiment can have a configuration in which the peripheral region of the portion where the first sub-wire 214 branches off from the first main wire 212 is not covered by the third conductive layer. The display device according to the embodiment can prevent short circuits by not placing the second main wire 222 on the portion where the first sub-wire 214 branches off from the first main wire 212. That is, the second main wire 222 does not overlap with the inner edge of the first main wire 212, but is spaced apart from the inner edge of the first main wire 212 by a predetermined interval, thereby preventing short circuit defects.
[0125] The second main wiring 222 has been described as partially overlapping the first main wiring 212, but the invention is not limited thereto. In another embodiment, the second main wiring 222 may not overlap the first main wiring 212. Furthermore, in Figure 11In the illustration, the width of the second main wiring 222 is shown to be smaller than the width of the first main wiring 212, but the invention is not limited thereto. In another embodiment, the width of the first main wiring 212 may be substantially the same as, or equal to or less than, the width of the second main wiring 222. Furthermore, in Figure 11 In the illustration, the outer edge of the second main wiring 222 is shown to be located outside the outer edge of the first main wiring 212, but the invention is not limited thereto. In another embodiment, the outer edge of the second main wiring 222 may correspond to the outer edge of the first main wiring 212.
[0126] The second sub-wiring 224 may at least partially overlap with the second power line 320. A first insulating layer 160 and a second insulating layer 120 may be located between the second sub-wiring 224 and the second power line 320. A plurality of openings 163 may be located in the first insulating layer 160 and the second insulating layer 120. The second sub-wiring 224 may be connected to the second power line 320 through the plurality of openings 163. A common voltage may be applied to the second power line 220, and the second power line 320 may receive the common voltage through the second power line 220.
[0127] The third conductive layer may further include a first connecting electrode 412 and a second connecting electrode 414.
[0128] The first connecting electrode 412 may be located on the first insulating layer 160 and may overlap with the first sub-wiring 214 of the first power line 210 and the second portion 314 of the first electric field line 310. One end of the first connecting electrode 412 may overlap with the second portion 314 of the first electric field line 310. The first insulating layer 160 may include a plurality of openings 161, and the openings 161 may overlap with the first connecting electrode 412 and the second portion 314 of the first electric field line 310. The first connecting electrode 412 may be connected to the first electric field line 310 through the plurality of openings 161. The other end of the first connecting electrode 412 may overlap with the first sub-wiring 214. The first insulating layer 160 may include a plurality of openings 162, and the openings 162 may overlap with the first connecting electrode 412 and the first sub-wiring 214. The first connecting electrode 412 may be connected to the first sub-wiring 214 through the plurality of openings 162. Therefore, the first sub-wiring 214 of the first power line 210 may be connected to the second portion 314 of the first electric field line 310 through the first connecting electrode 412. A driving voltage can be applied to the first power line 210, and the first power line 310 can receive the driving voltage through the first power line 210.
[0129] The second connecting electrode 414 may be located on the first insulating layer 160 and overlap with the first portion 312 and the second portion 314 of the first electric field line 310. A portion of the second connecting electrode 414 may overlap with the first portion 312 of the first electric field line 310. The second insulating layer 120 and the first insulating layer 160 may be located between the second connecting electrode 414 and the first portion 312 of the first electric field line 310. A plurality of openings 164 overlapping the second connecting electrode 414 and the first portion 312 of the first electric field line 310 may be provided in the second insulating layer 120 and the first insulating layer 160. The second connecting electrode 414 may be connected to the first portion 312 of the first electric field line 310 through the plurality of openings 164. Another portion of the second connecting electrode 414 may overlap with the second portion 314 of the first electric field line 310. The first insulating layer 160 may be located between the second connecting electrode 414 and the second portion 314 of the first electric field line 310. A plurality of openings 165 overlapping the second connecting electrode 414 and the second portion 314 of the first electric field line 310 may be provided in the first insulating layer 160. The second connecting electrode 414 may be connected to the second portion 314 of the first electric field line 310 through the plurality of openings 165. Therefore, the first portion 312 and the second portion 314 of the first electric field line 310 may be connected to each other through the second connecting electrode 414.
[0130] Now refer to Figures 16 to 20 A display device according to an embodiment is described.
[0131] According to the reference Figures 16 to 20 The display device described in the embodiments mainly corresponds to that described in the reference. Figures 1 to 6 The display device of the described embodiment will not repeat the same parts. This embodiment differs from the previous embodiment in that multiple openings are defined in the connectors of the corresponding wirings, and the outer edge of the first main wiring 212 does not correspond to the outer edge of the second main wiring 222.
[0132] Figure 16 A top plan view of a display device according to an embodiment is shown, and Figure 17 The following is an illustration of a display device according to an embodiment. Figure 16 A cross-sectional view of line XVII-XVII'. Figures 18 to 20 Top plan views are shown in the order in which the display device according to the embodiment was manufactured.
[0133] like Figures 16 to 20 As shown, the display device according to the embodiment may include a substrate 110, a first power line 210, a second power line 220, a first electric power line 310, and a second electric power line 320.
[0134] A first conductive layer, including a first electric field line 310 and a second electric field line 320, may be located on the substrate 110. Figure 18 The diagram illustrates the first conductive layer.
[0135] The first electric field line 310 and the second electric field line 320 may be located on the substrate 110 and may extend parallel to each other. The end of the first electric field line 310 may have a wider width than the rest of the first electric field line 310. The end of the second electric field line 320 may have a wider width than the rest of the second electric field line 320.
[0136] The second insulating layer 120 may be located on the first conductive layer including the first electric field line 310 and the second electric field line 320. The second conductive layer including the first power line 210 may be located on the second insulating layer 120. That is, the second insulating layer 120 may be located between the first conductive layer and the second conductive layer. Figure 19 The first conductive layer and the second conductive layer are shown.
[0137] The first power line 210 includes a first main wiring 212 and a first sub-wiring 214. The first main wiring 212 may extend in a first direction D1, which is its longitudinal direction. The first sub-wiring 214 protrudes from the first main wiring 212 toward the first power line 310. That is, the first sub-wiring 214 branches off from the first main wiring 212 toward the display area DA.
[0138] The first sub-wiring 214 and the first power line 310 may be located on a virtual straight line extending in the second direction D2. However, the invention is not limited thereto, and the shapes of the first main wiring 212 and the first sub-wiring 214, as well as their positional relationship with the first power line 310, can be changed in many ways.
[0139] The first insulating layer 160 may be located on the second conductive layer including the first power line 210. The third conductive layer including the second power line 220 may be located on the first insulating layer 160. That is, the first insulating layer 160 may be located between the second conductive layer and the third conductive layer. Figure 20 The first conductive layer, the second conductive layer, and the third conductive layer are shown.
[0140] The second power line 220 includes a second main wiring 222 and a second sub-wiring 224. The second main wiring 222 may extend in a first direction D1, which is its longitudinal direction. The second sub-wiring 224 protrudes from the second main wiring 222 toward the second power line 320. That is, the second sub-wiring 224 branches off from the second main wiring 222 toward the display area DA.
[0141] The second sub-wiring 224 can extend in the second direction D2, which is its longitudinal direction.
[0142] The second main wiring 222 may overlap a portion of the first main wiring 212. The inner edge of the second main wiring 222 does not overlap with the inner edge of the first main wiring 212. The outer edge of the second main wiring 222 may overlap with the outer edge of the first main wiring 212. The inner edge of the second main wiring 222 is spaced apart from the inner edge of the first main wiring 212 in the plan view, and the spacing distance d between the inner edge of the second main wiring 222 and the inner edge of the first main wiring 212 in the second direction D2 may be equal to or greater than approximately 1 μm and equal to or less than approximately 500 μm. That is, the width of the area where the first main wiring 212 and the second main wiring 222 do not overlap in the second direction D2 may be equal to or greater than approximately 1 μm and equal to or less than approximately 500 μm.
[0143] Therefore, the display device according to the embodiment can have a configuration in which the peripheral region of the portion where the first sub-wire 214 branches off from the first main wire 212 is not covered by the third conductive layer. The display device according to the embodiment can prevent short circuits by not providing the second main wire 222 on the portion where the first sub-wire 214 branches off from the first main wire 212. That is, the second main wire 222 does not overlap with the inner edge of the first main wire 212, but is instead positioned at a predetermined distance from the inner edge of the first main wire 212, thereby preventing short circuit defects.
[0144] The second main wiring 222 has been described as partially overlapping the first main wiring 212, but the invention is not limited thereto. The second main wiring 222 may not overlap the first main wiring 212. Furthermore, in Figure 16 In the diagram, the width of the second main wiring 222 is shown to be smaller than the width of the first main wiring 212, but the invention is not limited thereto. In another embodiment, the width of the first main wiring 212 may be substantially the same as or smaller than the width of the second main wiring 222. Furthermore, in Figure 16 In the illustration, the outer edge of the second main wiring 222 is shown to be located outside the outer edge of the first main wiring 212, but the invention is not limited thereto. In another embodiment, the outer edge of the second main wiring 222 may correspond to the outer edge of the first main wiring 212.
[0145] The second sub-wiring 224 may at least partially overlap with the second power line 320. A first insulating layer 160 and a second insulating layer 120 may be located between the second sub-wiring 224 and the second power line 320. A plurality of openings 163 may be located in the first insulating layer 160 and the second insulating layer 120. The second sub-wiring 224 may be connected to the second power line 320 through the plurality of openings 163. A common voltage may be applied to the second power line 220, and the second power line 320 may receive the common voltage through the second power line 220.
[0146] The third conductive layer may further include a connection electrode 410. The connection electrode 410 may be located on the first insulating layer 160 and may overlap with the first sub-wiring 214 of the first electric field line 310 and the first power line 210. One end of the connection electrode 410 may overlap with the first electric field line 310. The first insulating layer 160 may include a plurality of openings 161, and the openings 161 may overlap with the connection electrode 410 and the first electric field line 310. The plurality of openings 161 may be defined in the second insulating layer 120. The connection electrode 410 may be connected to the first electric field line 310 through the plurality of openings 161. The other end of the connection electrode 410 may overlap with the first sub-wiring 214. The first insulating layer 160 may include a plurality of openings 162, and the openings 162 may overlap with the connection electrode 410 and the first sub-wiring 214. The connection electrode 410 may be connected to the first sub-wiring 214 through the plurality of openings 162. Therefore, the first power line 210 may be connected to the first electric field line 310 through the connection electrode 410.
[0147] Although this disclosure has been described in conjunction with embodiments currently considered to be practiceable, it should be understood that the invention is not limited to the disclosed embodiments, but rather is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims
1. A display device, comprising: The substrate includes a display area and a peripheral area located outside the display area; The first power line is located in the peripheral area of the substrate; The first insulating layer is located on the first power line; as well as The second power line is located on the first insulating layer and in the peripheral region of the substrate. The first power line includes a first main wiring extending in a first direction and a first sub-wiring extending from the first main wiring toward the display partition. The second power line includes a second main wiring extending in the first direction and a second sub-wiring extending from the second main wiring toward the display partition fork. The first main wiring includes an inner edge located near the first sub-wiring and facing the display area, and an outer edge opposite to the inner edge. The second main wiring does not overlap with the inner edge of the first main wiring in the plan view.
2. The display device according to claim 1, wherein The second main wiring includes an inner edge located near the second sub-wiring and facing the display area, and an outer edge opposite the inner edge of the second main wiring. The inner edge of the second main wiring is spaced apart from the inner edge of the first main wiring in the plan view.
3. The display device according to claim 2, wherein The distance between the inner edge of the second main wiring and the inner edge of the first main wiring in a second direction perpendicular to the first direction is equal to or greater than 1 μm and equal to or less than 500 μm.
4. The display device according to claim 1, wherein The second main wiring overlaps with a portion of the first main wiring in the plan view, and The portion of the first main wiring that does not overlap with the second main wiring has a width in a second direction perpendicular to the first direction that is equal to or greater than 1 μm and equal to or less than 500 μm.
5. The display device according to any one of claims 1 to 4, further comprising: A first power line is electrically connected to the first power line and is located in the display area of the substrate; as well as The second power line is electrically connected to the second power line and is located in the display area of the substrate.
6. The display device according to claim 5, wherein The first power line and the second power line extend to the peripheral region of the substrate.
7. The display device according to claim 5, further comprising: A second insulating layer is located on the first electric field line and the second electric field line. The first power line is located on the second insulation layer.
8. The display device according to claim 7, further comprising: The connecting electrode is located on the first insulating layer and is connected to the first power line and the first power supply line.
9. The display device according to claim 8, wherein The first insulating layer and the second insulating layer define a first opening that overlaps with the first electric field line in the plan view. The connecting electrode is connected to the first electric field line through the first opening. The first insulating layer defines a second opening that overlaps with the first sub-wiring in the plan view, and The connecting electrode is connected to the first sub-wire through the second opening.
10. The display device according to claim 5, wherein The first power line and the second power line are located in the same layer as the first power line.
11. The display device according to claim 10, further comprising: The connecting electrode is located on the first insulating layer and is connected to the first power line and the first power supply line.
12. The display device according to claim 7, wherein The first insulating layer and the second insulating layer define a third opening in the plan view that overlaps with the second electric field line and the second sub-wiring line, and The second sub-wiring is connected to the second power line through the third opening.
13. The display device according to claim 5, wherein The first power line includes a first portion and a second portion located in different layers from each other, and The display device further includes: A second insulating layer is located between the first portion and the second portion; as well as Connect the electrodes to connect the first part and the second part.
14. The display device according to claim 13, wherein The first insulating layer and the second insulating layer define a fourth opening in the plan view that overlaps with the first portion of the first electric field line. The connecting electrode is connected to the first portion of the first electric field line through the fourth opening. The first insulating layer is defined by a fifth opening that overlaps with the second portion of the first electric field line in the plan view, and The connecting electrode is connected to the second portion of the first power line through the fifth opening.
15. The display device according to any one of claims 1 to 4, wherein A driving voltage is applied to the first power line, and A common voltage is applied to the second power line.
16. A display device, comprising: The substrate includes a display area and a peripheral area located outside the display area; The first power line is located in the peripheral area of the substrate; An insulating layer is located on the first power line; The second power line is located on the insulating layer and in the peripheral area of the substrate; A first power line is electrically connected to the first power line and is located in the display area of the substrate; as well as A second power line, electrically connected to the second power line and located in the display area of the substrate, The first power line includes a first main wiring extending in a first direction and a first sub-wiring branching from the first main wiring toward the first power line. The second power line includes a second main wiring extending in the first direction and a second sub-wiring branching off from the second main wiring toward the second power line, and The second main wiring does not overlap with the portion of the first sub-wiring that branches off from the first main wiring in the plan view.