Display panel and display device

Abstract

Embodiments of the present invention disclose a display panel and display device, comprising an array substrate and a spacer layer located on a first side surface of the array substrate. A winding layer is provided on the array substrate, comprising a plurality of windings. The spacer layer is provided with a plurality of spacers, and the windings at least partially overlap with the perpendicular projections of at least some of the spacers on a first plane, which is the plane of the array substrate. In the above technical solution, the winding layer is located below the spacer layer, and the windings at least partially overlap with the perpendicular projections of at least some of the spacers on the first plane. Therefore, the windings can elevate the spacers to a certain extent, thereby effectively supporting the mask during evaporation.

Description

Technical Field

[0001] Embodiments of the present invention relate to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] The spacers (PS) in existing display products play a supporting role for the FMM mask (Fine Metal Mask) during the evaporation process. However, the design of the spacers in related technologies is relatively simple, and the height of the spacers is relatively low, which cannot play a good supporting role. Summary of the Invention

[0003] Embodiments of the present invention provide a display panel and a display device, which effectively improve the support effect of the spacers by arranging a winding layer on an array substrate and at least partially overlapping the vertical projections of the windings and at least part of the spacers on the first plane.

[0004] In a first aspect, an embodiment of the present invention provides a display panel, comprising an array substrate and a spacer layer located on a first side surface of the array substrate, wherein a winding layer is provided on the array substrate, the winding layer includes a plurality of windings, and a plurality of spacers are provided in the spacer layer; the windings at least partially overlap with a vertical projection of at least part of the spacers on a first plane, and the first plane is the plane where the array substrate is located.

[0005] In a second aspect, an embodiment of the present invention further provides a display device, comprising the display panel described in the first aspect.

[0006] The display panel provided by the present invention includes a winding layer located on an array substrate and a spacer layer located on a first side surface of the array substrate, wherein the winding layer includes multiple windings, and multiple spacers are arranged in the spacer layer. Since the winding layer is located on the array substrate, and the spacer layer is located on the first side surface of the array substrate, that is, the winding layer is located below the spacer layer, by arranging the windings and at least part of the spacers to at least partially overlap with the vertical projections on the first plane, the first plane is the plane where the array substrate is located, and the spacers can be raised to a certain extent by the windings, and then during evaporation, the spacers can effectively support the mask plate, thereby avoiding excessive deformation of the mask plate and preventing the mask plate opening from expanding, thereby ensuring that the deposition areas of organic functional layers such as the hole transport layer, the light-emitting layer, and the electron transport layer in the sub-pixel are accurately aligned, thereby ensuring the quality of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, although the drawings described below are some specific embodiments of the present invention, for those skilled in the art, the basic concepts of the device structure, driving method and manufacturing method disclosed and suggested by the various embodiments of the present invention can be expanded and extended to other structures and drawings. Undoubtedly, these should all be within the scope of the claims of the present invention.

[0008] Figure 1 is a structural schematic diagram of a display panel provided by an embodiment of the present invention;

[0009] Figure 2 yes Figure 1 A schematic diagram of an enlarged structure of area A;

[0010] Figure 3 yes Figure 2 A cross-sectional structural diagram along the BB' direction;

[0011] Figure 4 yes Figure 2 A schematic diagram of an enlarged structural layout of the middle C area;

[0012] Figure 5 yes Figure 2 Another cross-sectional structure diagram along the BB' direction;

[0013] Figure 6 yes Figure 1 Another enlarged structural diagram of the A area in the middle;

[0014] Figure 7 This is a schematic diagram of a wiring method for winding provided by an embodiment of the present invention;

[0015] Figure 8 and Figure 9 Schematic diagrams of two other winding routing methods provided by embodiments of the present invention;

[0016] Figure 10 Schematic diagram of another wiring method of winding provided by an embodiment of the present invention;

[0017] Figure 11 Schematic diagram of another wiring method of winding provided by an embodiment of the present invention;

[0018] Figure 12 yes Figure 1 Another enlarged structural diagram of the A area in the middle;

[0019] Figure 13 A schematic structural diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the present invention more clear, the following will refer to the accompanying drawings of the embodiments of the present invention to clearly and completely describe the technical solutions of the present invention through implementation methods. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the basic concepts disclosed and suggested by the embodiments of the present invention, all other embodiments obtained by those skilled in the art are within the scope of protection of the present invention.

[0021] Figure 1 is a structural diagram of a display panel provided by an embodiment of the present invention, Figure 2 yes Figure 1 An enlarged structural diagram of the A area in the middle. Figure 3 yes Figure 2 A cross-sectional structure diagram along the BB' direction. Figure 1-Figure 3 An embodiment of the present invention provides a display panel 1 including an array substrate 10 and a spacer layer 110 located on a first side surface S1 of the array substrate 10. A winding layer 120 is provided on the array substrate 10. The winding layer 120 includes a plurality of windings 121. A plurality of spacers 111 are provided in the spacer layer 110. The windings 121 at least partially overlap with a vertical projection of at least part of the spacers 111 on a first plane. The first plane is the plane where the array substrate is located.

[0022] Specifically, such as Figure 3 As shown, the display panel includes an array substrate 10 and sub-pixels 20 located on the array substrate. The array substrate 10 can be a low-temperature polysilicon array substrate, an IGZO (indium gallium zinc oxide) array substrate or other types of substrates with a TFT array. A plurality of pixel driving circuits (not shown in the figure) for driving the sub-pixels 20 are provided in the array substrate 10. Each pixel driving circuit includes at least one transistor T, which drives the sub-pixel 20 to emit light. The structure of the transistor T can be a top gate structure or a bottom gate structure. The structure of the thin film transistor is not limited here. For example, if the structure of the transistor T is a bottom gate structure, the array substrate 10 may include a buffer layer, a gate metal layer, a first insulating layer, an active layer, a second insulating layer and a source-drain metal layer stacked in sequence. The channel of the transistor is located in the active layer, the gate of the transistor is located in the gate metal layer, and the source and drain of the transistor are located in the source-drain metal layer. It should be noted that the embodiment of the present invention does not limit the specific structure of the pixel driving circuit. It may include two transistors and one storage capacitor, that is, a "2T1C" pixel driving circuit, or it may include seven transistors and one storage capacitor, that is, a "7T1C" pixel driving circuit, as long as it can normally drive the sub-pixel 20 to emit light and display.

[0023] The sub-pixel 20 includes a first electrode 210, a light-emitting functional layer 220, and a second electrode 230, which are sequentially arranged near a side of the array substrate 10. The drain of the transistor T is connected to the first electrode 210. In addition, the light-emitting functional layer 220 may be a stacked layer including a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, and an electron injection layer. Specifically, when no voltage is applied to the first electrode 210 and the second electrode 230, the sub-pixel 20 does not emit light. When a voltage is applied to the first electrode 210 and the second electrode 230, the first electrode 210 injects holes into the hole injection layer, and the second electrode 230 injects electrons into the electron injection layer. The holes and electrons recombine in the light-emitting layer to form photoexcitons, which radiate light.

[0024] The display panel 1 further includes a spacer layer 110 located on a first side surface S1 of the array substrate 10, wherein the first side surface S1 may be a surface of the array substrate 10 on a side close to the sub-pixels 20. The spacer layer 110 is located on a side of the sub-pixels 20 away from the array substrate 10. The spacer layer 110 includes a plurality of spacers 111, each spacer 111 being located between two adjacent sub-pixels 20. Specifically, the spacers 111 are used to support the mask during the process of forming the light-emitting functional layer 220 of the sub-pixels 20 by evaporation. However, the existing spacers 111 are relatively low in height and cannot effectively provide support.

[0025] To this end, the embodiment of the present invention further provides a winding layer 120 on the array substrate 10, and a plurality of windings 121 are provided in the winding layer 120. Since the spacer layer 110 is located on the side of the sub-pixel 20 away from the array substrate 10, that is, the spacer layer 110 is located above the film layer where the sub-pixel 20 is located, and the winding layer 120 can be provided on the newly added fourth metal layer, that is, the winding layer 120 is located below the film layer where the sub-pixel 20 is located, and then the windings 121 are provided to at least partially overlap with the vertical projection of at least part of the spacer 111 on the first plane, wherein the first plane is the plane where the array substrate 10 is located. In this way, by providing the windings 121 below the spacer 111, the height of the spacer 111 can be further raised, so that the spacer 111 can effectively support the mask during evaporation, thereby avoiding excessive deformation of the mask and preventing the mask opening from expanding, thereby ensuring that the deposition areas of organic functional layers such as the hole transport layer, the light-emitting layer, and the electron transport layer in the sub-pixel 20 are accurately aligned, thereby ensuring the quality of the display panel.

[0026] In summary, the display panel provided by the embodiment of the present invention includes a winding layer located on the array substrate and a spacer layer located on the first side surface of the array substrate, that is, the winding layer is located below the spacer layer, and the winding is set to at least partially overlap with the vertical projection of at least part of the spacer on the first plane, wherein the first plane is the plane where the array substrate is located, and the spacer can be raised to a certain extent by the winding, and then during evaporation, the spacer can effectively support the mask plate, thereby avoiding excessive deformation of the mask plate and preventing the mask plate opening from expanding, thereby ensuring the precise alignment of the deposition areas of organic functional layers such as the hole transport layer, the light-emitting layer, and the electron transport layer in the sub-pixel, thereby ensuring the quality of the display panel.

[0027] Alternatively, see Figure 1 and Figure 2 The array substrate 10 includes a first display area AA1 and a second display area AA2. A light-transmitting area BB is provided in the first display area AA1, and the second display area AA2 at least partially surrounds the first display area AA1. The winding 121 does not overlap with the vertical projection of the light-transmitting area BB in the first display area AA1 on the first plane.

[0028] Specifically, the array substrate 10 includes a first display area AA1 and a second display area AA2, and the second display area AA2 at least partially surrounds the first display area AA1. The second display area AA2 is the normal display area of the display panel, and sub-pixels can be arranged in a conventional manner, for example, in the form of strip distribution with red, green and blue (RGB) cyclic arrangement, triangular distribution with RGB staggered arrangement, etc., which is not limited in the embodiment of the present invention. A light-transmitting area BB is provided in the first display area AA1, and the light-transmitting area BB is a reserved area for optical elements. Since optical elements have high requirements for light, the existing technology generally sets a hollow area or an area with a relatively sparse sub-pixel arrangement density at the edge or inside of the display area to ensure a certain light transmittance and realize the light collection function of the optical element. It can be seen from this that for the sub-pixels in the upper and lower areas of the first display area AA1, if a signal line is set to transmit between the sub-pixels in the upper and lower areas of the first display area AA1, the signal line cannot be set inside the first display area AA1, and it is necessary to set a winding 121 in the left and right areas of the first display area AA1 to realize signal transmission. That is, it is necessary to set the winding 121 so that it does not overlap with the vertical projection of the light-transmitting area BB in the first display area AA1 on the first plane, so that the winding 121 bypasses the light-transmitting area BB when setting, thereby avoiding the setting of the winding 121 affecting the normal operation of the optical element.

[0029] It should be noted that Figure 2 In order to distinguish the winding 121 from other wirings in the second display area AA2, the winding 121 is represented by a dotted line. Those skilled in the art will know that when the winding 121 is set, there is no gap shown in the figure.

[0030] On the basis of the above embodiment, continue to refer to Figure 1 and Figure 3 The display panel 1 also includes a pixel definition layer 130, which is located on the first side surface S1 of the array substrate 10. The pixel definition layer 130 includes a plurality of light exit openings 131, and the winding 121 does not overlap with the vertical projection of the light exit opening 131 of the pixel definition layer 130 on the first plane.

[0031] For example, Figure 3 As shown, the display panel 1 further includes a pixel definition layer 130, which is located on the first side surface S1 of the array substrate 10 and between the spacer layer 110 and the array substrate 10. The pixel definition layer 130 includes a plurality of light exit openings 131, which can expose the first electrodes 210 of the sub-pixels 20 to facilitate the subsequent formation of the light-emitting functional layers 220 of the sub-pixels 20. Furthermore, the plurality of light exit openings 131 are used to define the positions of the sub-pixels 20. Specifically, the light exit openings 131 of the pixel definition layer 130 constitute the light-emitting area, while the non-opening areas of the pixel definition layer 130 constitute the non-light-emitting area. By ensuring that the winding wire 121 and the vertical projection of the light exit opening 131 of the pixel definition layer 130 on the first plane do not overlap, the winding wire 121 avoids the light exit opening 131, thereby improving the transmittance of the display panel. Furthermore, because the winding wire 121 avoids the light exit opening 131, the winding is performed while ensuring the flatness of the light-emitting area, which helps to improve the color cast problem of the display panel.

[0032] Optionally, based on the above embodiment, the spacer layer 110 and the pixel definition layer 130 are reused in the same layer. Specifically, the spacer layer 110 is provided on the side of the pixel definition layer 130 facing away from the array substrate 10. The spacer layer 110 is provided with multiple spacers 111. The multiple spacers 111 are used to support the mask when preparing the light-emitting functional layer 220 of the sub-pixel 20, thereby improving the preparation accuracy of the light-emitting functional layer 220. The pixel definition layer 130 and the spacer layer 110 are reused in the same layer, which can ensure that the pixel definition layer 130 and the spacer layer 110 are simply arranged and the display panel structure is simple. At the same time, the pixel definition layer 130 and the spacer layer 110 can be manufactured simultaneously in a single manufacturing process, which reduces the process flow and ensures a simple display panel manufacturing process.

[0033] Optional, Figure 4 yes Figure 2 A schematic diagram of an enlarged structural layout of the C area in the middle, see Figure 3 and Figure 4An anode layer 140 is provided in the array substrate 10, and the anode layer includes a plurality of anode units 141 and a plurality of anode same-layer structures 142. The winding 121 is provided in a different layer from the anode layer 140, and the vertical projections of the winding 121 and the anode units 141 and / or the anode same-layer structures 142 on the first plane at least partially overlap.

[0034] For example, Figure 2 and Figure 4 As shown, the anode layer 140 may be the film layer where the first electrode 210 of the sub-pixel 20 is located. Figure 2 The first electrode 210 is Figure 4 The anode unit 141 is shown in the figure. Specifically, the first electrode 210 defines the opening size of the light exit opening 131 of the sub-pixel 20, that is, the vertical projection of the first electrode 210 on the first plane wraps the vertical projection of the light exit opening 131 on the first plane, and the first electrode 210 also includes a portion that does not overlap with the vertical projection of the light exit opening 131 on the first plane, and the winding 121 can at least partially overlap with the vertical projection of this portion of the first electrode 210 on the first plane. In addition, the anode layer 140 also includes an anode same-layer structure 142, and the anode same-layer structure 142 can play a role in shading. By at least partially overlapping the vertical projection of the winding 121 and the anode same-layer structure 142 on the first plane, the transmittance of the display panel can be improved, thereby improving the display effect of the display panel.

[0035] It should be noted that the above embodiment only describes by way of example that the winding 121 at least partially overlaps with the vertical projection of the anode unit 141 or the anode same-layer structure 142 on the first plane. In other embodiments, the winding 121 may also at least partially overlap with the vertical projection of the anode unit 141 and the anode same-layer structure 142 on the first plane. The present invention is not limited to this, and those skilled in the art may set it as needed.

[0036] On the basis of the above embodiment, continue to refer to Figure 3 and Figure 4 The anode same-layer structure 142 includes an anode extension portion 1421, which is connected to the anode unit 141. A plurality of transistors T are provided in the array substrate 10, and the transistors T are located on the side of the anode layer 140 away from the first side surface S1; the anode extension portion 1421 at least partially overlaps with the vertical projection of some transistors T on the first plane.

[0037] Specifically, a plurality of transistors T are provided in the array substrate 10. The transistor T is located on a side of the anode layer 140 away from the first side surface S1, and the drain of the transistor T is electrically connected to the corresponding anode unit 141 in the anode layer 140. The anode same-layer structure 142 includes an anode extension portion 1421. The anode extension portion 1421 is connected to the anode unit 141, that is, the anode unit 141 is extended toward the position of the transistor T, so that the vertical projection of the transistor T electrically connected to the anode unit 141 on the first plane at least partially overlaps, so that the anode extension portion 1421 blocks the transistor T, preventing external light from passing through the gap between the anode units 141 and entering the transistor T, affecting the normal operation of the transistor T, thereby improving the display effect of the display panel.

[0038] It can be understood that the vertical projection of the anode extension portion 1421 on the first plane can cover the vertical projection of the transistor T electrically connected to the anode unit 141 on the first plane, so that the anode extension portion 1421 can completely block the transistor T, further improving the display effect of the display panel.

[0039] It should be noted that Figure 4 The figure only illustrates that the anode unit 140 of one sub-pixel has an anode extension portion 1421, and the anode extension portion 1421 overlaps with the winding 121. Those skilled in the art will understand that other sub-pixels may also have an anode extension portion 1421, and the anode extension portion 1421 may also overlap with the winding 121.

[0040] On the basis of the above embodiment, continue to refer to Figure 2 The first display area AA1 is provided with an optical element (not shown in the figure), and the optical element at least partially overlaps with the vertical projection of the light-transmitting area BB on the first plane.

[0041] Specifically, the optical element may be a camera, which may be arranged in the light-transmitting area BB, that is, the vertical projection of the optical element and the light-transmitting area BB on the first plane at least partially overlaps. Since the aperture of the camera receiving light is generally set to be circular, Figure 1 and Figure 3 The first display area AA1 and the light-transmitting area BB are exemplarily shown as circular areas. In other embodiments, the first display area AA1 and the light-transmitting area BB may also be other shapes, and those skilled in the art may configure them as needed.

[0042] Figure 5 yes Figure 2 Another cross-sectional structure diagram along the BB' direction, see Figure 1 、 Figure 4 and Figure 5The display panel 1 also includes a color film substrate 30, which is opposite to the array substrate 10. A touch layer 310 is further provided on the color film substrate 30. The touch layer 310 and the winding layer 120 are arranged in different layers. The touch layer 310 includes multiple touch traces 311. The winding 121 and the vertical projection of at least part of the touch traces 311 on the first plane at least partially overlap.

[0043] Specifically, the display panel 1 also includes a color filter substrate 30, which is positioned opposite the array substrate 10. A touch layer 310 is also provided on the color filter substrate 30. The touch layer 310 includes touch electrodes (not shown). The touch electrodes can be transparent touch electrodes or metal mesh electrodes, so that light emitted by the sub-pixels 20 disposed below the touch electrodes can be transmitted through the touch electrodes. The touch electrodes can be connected to touch traces 311, which receive touch drive signals and feedback touch sensing signals through the touch traces 311, thereby realizing the touch function of the display panel 1. The touch layer 310 is arranged on the color film substrate 30, and the winding layer 120 is arranged on the array substrate 10, that is, the touch layer 310 and the winding layer 120 are arranged on different layers. The touch layer 310 includes multiple touch traces 311, and the winding layer 120 includes multiple windings 121. The windings 121 can be arranged to at least partially overlap with the vertical projection of at least part of the touch traces 311 on the first plane, that is, the windings 121 can be made to overlap with part of the touch traces 311, further increasing the transmittance of the display panel and improving the display effect of the display panel.

[0044] It should be noted that the embodiments of the present invention do not limit the specific configuration of the touch layer 310. The touch layer 310 can be a self-capacitive touch layer or a mutual-capacitive touch layer. Regardless of whether the touch layer is a self-capacitive touch layer or a mutual-capacitive touch layer, the touch layer 310 must transmit touch signals via the touch traces 311 for the touch layer 310 to function properly.

[0045] Optional, Figure 6 yes Figure 1 Another enlarged structural diagram of the A area in the middle, see Figure 3 and Figure 6 The array substrate 10 is further provided with a signal routing layer 150, which includes a plurality of drive signal lines 151. The plurality of drive signal lines 151 are respectively located on both sides of the first display area AA1 in the first direction X. The drive signal lines 151 extend along the first direction X and are sequentially arranged along the second direction Y. The first direction X and the second direction Y intersect, and at least a portion of the winding 121 electrically connects two drive signal lines 151 respectively located on both sides of the first display area AA1 in the first direction X.

[0046] For details, see Figure 3 and Figure 6The array substrate 10 is further provided with a signal wiring layer 150, which includes a plurality of drive signal lines 151. The drive signal lines 151 may be data signal lines, which provide data drive signals to the sub-pixels 20. The data signal lines are located in the third metal layer, that is, the drive signal lines 151 may be located in the third metal layer. Figure 2 The display panel also includes a first display area AA1 and a second display area AA2. The second display area AA2 at least partially surrounds the first display area AA1. The first display area AA1 is provided with a light-transmitting area BB, which is a reserved area for optical elements. Therefore, it is necessary to dig a hole in the first display area AA1, and then the driving signal line 151 needs to avoid the first display area AA1 when it is set. In the prior art, the drive signal line 151 is usually wound around the first display area AA1 to bypass the first display area AA1. However, in an embodiment of the present invention, the drive signal line 151 is disconnected at the first display area AA1, that is, multiple drive signal lines 151 are respectively located on both sides of the first display area AA1 in the first direction X. The drive signal lines 151 extend along the first direction X and are arranged sequentially along the second direction Y. By adding a winding layer 120 (that is, the fourth metal layer), multiple windings 121 in the winding layer 120 are punched downward to electrically connect with the drive signal lines 151 located on the third metal layer, thereby avoiding the need to set up wiring in the first display area AA1. Compared with the technical solution of winding the drive signal line 151 in the first display area AA1 in the prior art, the implementation of the present invention does not require winding in the first display area AA1, which is conducive to achieving a narrow frame in the first display area AA1.

[0047] Optional, see Figure 6 The winding 121 includes a first winding 121a and a second winding 121b. The first winding 121a and the second winding 121b are respectively located on both sides of the first display area AA1 along the second direction Y. At least part of the first winding 121a and the second winding 121b are axially symmetrical with the central axis a extending along the first direction X of the first display area AA1 as the axis of symmetry.

[0048] Specifically, the winding 121 includes a first winding 121a and a second winding 121b, and the first winding 121a and the second winding 121b are axially symmetrically distributed along the center axis a, so that the first winding 121a and the second winding 121b electrically connected to the driving signal line 151 are balanced in length, thereby making the driving signal lines 151 on both sides in the first direction X balanced in voltage drop and impedance, thereby improving the display effect of the display panel.

[0049] It should be noted that Figure 6In order to distinguish the winding 121 from the driving signal line 151, the winding 121, the first winding 121a and the second winding 121b are represented by dotted lines. Those skilled in the art will know that when the winding 121 is set, there is no gap shown in the figure.

[0050] On the basis of the above embodiment, continue to refer to Figure 3 The display panel further includes a light emitting array layer 200, which is located on the first side surface S1 of the array substrate 10. The light emitting array layer 200 includes a plurality of pixel units (not shown in the figure). The winding 121 is connected to the light emitting area of the pixel unit (i.e. Figure 3 The vertical projections of the light exit openings 131 shown in FIG. 1 on the first plane do not overlap with each other.

[0051] Specifically, the light emitting array layer 200 may be a stacked structure of a first electrode 210, a light emitting functional layer 220, and a second electrode 230, and is located on the first side surface S1 of the array substrate 10. The light emitting array layer 200 includes a plurality of pixel units, and the winding 121 is connected to the light emitting area of the pixel unit (i.e., Figure 3 The vertical projections of the light-emitting opening 131 shown in the figure on the first plane do not overlap with each other, that is, the vertical projections of the winding 121 and the light-emitting functional layer 220 on the first plane do not overlap with each other, so that the winding 121 avoids the light-emitting functional layer 220, thereby improving the transmittance of the display panel. At the same time, since the winding 121 avoids the light-emitting functional layer 220, the winding is performed while ensuring the flatness of the light-emitting area, which is beneficial to improving the color deviation problem of the display panel.

[0052] The above embodiment illustrates that the winding wires 121 are located on both sides of the first display area AA1 along the second direction Y. The routing of the winding wires 121 will be described below with reference to specific drawings.

[0053] Optional, Figure 7 This is a schematic diagram of a wiring method for winding provided by an embodiment of the present invention, see Figure 7 The pixel unit includes a plurality of sub-pixels 20, which are arranged in sequence in a first direction X and a second direction Y respectively. The winding 121 includes a plurality of sub-winding segments 1211, which are electrically connected in sequence. The sub-winding segments 1211 extend along the first direction X and / or along the second direction Y.

[0054] For example, Figure 7As shown, the sub-pixels 20 are arranged sequentially in a first direction X and a second direction Y, respectively. The first direction X can be a vertical direction, and the second direction Y can be a horizontal direction. Adjacent sub-pixels 20 are spaced apart, and the winding 121 is positioned between adjacent sub-pixels 20, thereby avoiding the sub-pixels 20 and improving the transmittance of the display panel. Specifically, the winding 121 includes a plurality of sub-winding segments 1211, which extend along the first direction X and / or along the second direction Y and are electrically connected in sequence. That is, the plurality of sub-winding segments 1211 pass through a plurality of sub-pixels 20 along the first direction X and the second direction Y, forming a "rectangle with one side open." This minimizes the number of bends in the winding, reducing the risk of breakage during bending.

[0055] Optional, Figure 8 and Figure 9 This is a schematic diagram of two other winding routing methods provided by the embodiment of the present invention, see Figure 8 and Figure 9 The sub-winding segment 1211 includes a first sub-winding segment 1211a and a second sub-winding segment 1211b. The first sub-winding segment 1211a extends along the first direction X, and the second sub-winding segment 1211b extends along the second direction Y. The first sub-winding segment 1211a and the second sub-winding segment 1211b are electrically connected alternately in sequence.

[0056] Specifically, such as Figure 8 As shown, the sub-winding segment 1211 includes a first sub-winding segment 1211a and a second sub-winding segment 1211b. After the second sub-winding segment 1211b extends to the left along the second direction Y by a distance of one sub-pixel, the first sub-winding segment 1211a extends downward along the first direction X by a distance of one sub-pixel. Then, the second sub-winding segment 1211b continues to extend to the left along the second direction Y by a distance of one sub-pixel. The winding is alternated until the middle position, at which point the second sub-winding segment 1211b begins to extend to the right along the second direction Y by a distance of one sub-pixel, thus forming a "step-shaped" symmetrical top and bottom. Alternatively, as shown in FIG. Figure 9As shown, after the second sub-winding segment 1211b extends to the left along the second direction Y by the distance of multiple sub-pixels, the first sub-winding segment 1211a extends downward along the first direction X by the distance of one sub-pixel, and then the second sub-winding segment 1211b extends to the right along the second direction Y by the distance of one sub-pixel 20. The first sub-winding segment 1211a and the second sub-winding segment 1211b alternately extend by the distance of one sub-pixel 20 to form a "J"-shaped structure, which can avoid the sub-pixels 20 and arrange the winding 121 in the area between the sub-pixels 20 without affecting the sub-pixel luminescence. At the same time, it can also raise the spacer so that the spacer can effectively support the mask during evaporation, thereby avoiding excessive deformation of the mask and preventing the mask opening from expanding, thereby ensuring that the deposition areas of organic functional layers such as the hole transport layer, the light-emitting layer, and the electron transport layer in the sub-pixel are accurately aligned, thereby ensuring the quality of the display panel.

[0057] Figure 10 This is a schematic diagram of another winding routing method provided by an embodiment of the present invention, see Figure 10 The pixel unit includes a plurality of sub-pixels 20, which are arranged in sequence in the third direction M and the fourth direction N respectively; wherein the first direction X, the second direction Y, the third direction M and the fourth direction N intersect in pairs, the winding 121 includes a plurality of sub-winding segments 1211, the plurality of sub-winding segments 1211 are electrically connected in sequence, and the sub-winding segments 1211 extend along the third direction M and\or extend along the fourth direction N.

[0058] For example, Figure 10 As shown, the pixel unit includes a plurality of sub-pixels 20, and the sub-pixels 20 are arranged in sequence in the third direction M and the fourth direction N, and are arranged obliquely, so that the third direction M and the fourth direction N are oblique, and the first direction X, the second direction Y, the third direction M and the fourth direction N intersect each other, and the winding 121 includes a plurality of sub-winding segments 1211, and the sub-winding segments 1211 extend along the third direction M and\or extend along the fourth direction N, then the sub-winding segments 1211 are oblique. Since most of the signal lines in the display panel are horizontally or vertically routed, the film thickness between the winding 121 and the signal line is relatively thin, and large-area capacitance is likely to appear. Then, by setting the sub-winding segments 1211 to extend along the third direction M and\or extend along the fourth direction N, that is, the winding 121 is obliquely designed, the overlapping area between the winding 121 and the signal line can be reduced. Specifically, after the sub-winding segment 1211 extends the distance of multiple sub-pixels 20 along the third direction M, it extends the distance of multiple sub-pixels 20 along the fourth direction N at the middle position to form a "diamond shape". In this way, the number of times the line bends is smaller, reducing the risk of the line breaking during the bending process.

[0059] Figure 11 This is a schematic diagram of another winding routing method provided by an embodiment of the present invention, see Figure 11The sub-winding segment 1211 includes a third sub-winding segment 1211c and a fourth sub-winding segment 1211d. The third sub-winding segment 1211c extends along the third direction M, and the fourth sub-winding segment 1211d extends along the fourth direction N. The third sub-winding segment 1211c and the fourth sub-winding segment 1211d are electrically connected alternately in sequence.

[0060] Specifically, such as Figure 11 As shown, the sub-winding segment 1211 includes a third sub-winding segment 1211c and a fourth sub-winding segment 1211d. After the fourth sub-winding segment 1211d extends along the fourth direction N by the distance of a sub-pixel, the third sub-winding segment 1211c extends along the third direction M. The third sub-winding segment 1211c and the fourth sub-winding segment 1211d are electrically connected alternately in sequence. The alternating winding forms an inclined "step shape", which can avoid the sub-pixel 20 and arrange the winding 121 in the area between the sub-pixels without affecting the sub-pixel luminescence. At the same time, it can also raise the spacer so that the spacer can effectively support the mask during evaporation, thereby avoiding excessive deformation of the mask and preventing the mask opening from expanding, thereby ensuring that the deposition areas of organic functional layers such as the hole transport layer, the light-emitting layer, and the electron transport layer in the sub-pixel are accurately aligned, thereby ensuring the quality of the display panel.

[0061] On the basis of the above embodiment, continue to refer to Figure 5 The winding layer 120 and the signal routing layer 150 are arranged in different layers, and the winding layer 120 is located on the side of the signal routing layer 150 close to the first side surface S1. An insulating layer (not shown in the figure) is provided between the winding layer 120 and the signal routing layer 150. The winding 121 is electrically connected to the driving signal line 151 through a via. Specifically, Figure 5 As shown, the signal routing layer 150 can be a third metal layer, the driving signal line 151 is located in the third metal layer, and the winding layer 120 is located on the side of the signal routing layer 150 close to the first side surface S1, that is, the winding layer 120 is located in the fourth metal layer, and an insulating layer is provided between the winding layer 120 and the signal routing layer 150 to prevent mutual interference between the metal routings of the third metal layer and the fourth metal layer. The winding layer includes a winding 121, and the signal routing layer 150 includes a driving signal line 151, and then the winding 121 is electrically connected to the driving signal line 151 located in the third metal layer by punching downwards to ensure the normal operation of the driving signal line 151.

[0062] It should be noted that Figure 7-11 Only the winding method of the winding wire 121 is illustrated. In actual situations, the two ends of the winding wire 121 will be connected to the two signal lines on the upper and lower sides of the first display area AA1, so that the same signal is transmitted on the two signal lines.

[0063] It should also be noted that Figure 7-11Only the winding method of the winding 121 is shown, and the position relationship of the driving signal line 151 and the connection relationship with the winding 121 are not shown. In addition, only the situation on the side of the first line AA1 is shown as an example. Those skilled in the art will know that the position relationship between the driving signal line 151 and the winding 121 should be Figure 6 The relationship shown in .

[0064] Figure 12 yes Figure 1 Another enlarged structural diagram of the A area in the middle, see Figure 5 and Figure 12 The array substrate 10 also includes a first power line 161, which is used to transmit a power signal. The first power line 161 extends around the second display area AA2, and the two ends of the first power line 161 are respectively located on both sides of the second display area AA2 in the first direction X. The winding layer 120 also includes a second power line 162, and the two ends of the second power line 162 are electrically connected to the two ends of the first power line 161 accordingly. The second power line 162 and the vertical projection of the light-transmitting area BB in the first display area AA1 on the first plane do not overlap with each other.

[0065] For example, Figure 5 and Figure 12 As shown, the array substrate 10 further includes a first power line 161, which can be connected to a PVEE signal line. The PVEE signal line is electrically connected to the cathode of the sub-pixel 20, providing a negative power signal to the sub-pixel 20. Specifically, the first power line 161 can be located in the third metal layer, with both ends of the first power line 161 located on either side of the second display area AA2 in the first direction X, that is, the ends of the first power line 161 are located on the upper and lower sides of the first display area AA1. Furthermore, a second power line 162 can be provided in the newly added fourth metal layer. The ends of the second power line 162 are electrically connected to the ends of the first power line 161, and both are connected to the PVEE signal line, forming a parallel relationship. In other words, the PVEE signal line is respectively connected to the first power line 161 located in the third metal layer and the second power line 162 located in the fourth metal layer. The ends of the second power line 162 are electrically connected to the ends of the first power line 161 located on the upper and lower sides of the first display area AA1, forming a parallel relationship. In this way, the impedance of the first power line 161 can be reduced, thereby reducing the voltage drop between different areas of the upper and lower panels. In addition, the second power line 162 and the vertical projection of the light-transmitting area BB in the first display area AA1 on the first plane do not overlap each other, so that the second power line 162 can bypass the light-transmitting area BB when installed, avoiding the installation of the second power line 162 affecting the normal operation of the optical element.

[0066] It is understandable that the first power line 161 may also be connected to the PVDD signal line, and its function is the same as that of the first power line 161 being connected to the PVEE signal line, which will not be described in detail here.

[0067] It should be noted that Figure 12 In order to distinguish the winding 121 and the second power line 162, different dotted lines are used to represent the winding 121 and the second power line 162 respectively. Those skilled in the art will know that when the winding 121 and the second power line 162 are set, there is no gap shown in the figure.

[0068] It should also be noted that since the first power line 161 is located in the non-display area, Figure 5 The position relationship of the first power line 161 is not shown in the figure. Those skilled in the art will know that the first power line 161 is located in the third metal layer and is arranged in the same layer as the driving signal line 151.

[0069] On the basis of the above embodiment, continue to refer to Figure 12 The second power line 162 includes a first sub-power line 162a, a second sub-power line 162b and at least one winding line 121. The first sub-power line 162a and the second sub-power line 162b are respectively located on both sides of the first display area AA1 in the first direction X, and at least one winding line 121 electrically connects the first sub-power line 162a and the second sub-power line 162b.

[0070] Specifically, such as Figure 12 As shown, the second power line 162 includes a first sub-power line 162a, a second sub-power line 162b and at least one winding 121. Unlike the above-mentioned winding 121 connected to the data signal line, the winding 121 here electrically connects the first sub-power line 162a and the second sub-power line 162b. Since the two ends of the first power line 161 are respectively located on both sides of the second display area AA2 in the first direction X, that is, on the upper and lower sides of the second display area AA2 close to the first display area AA1, the first sub-power line 162a and the second sub-power line 162b connected to the two ends of the first power line 161 across layers are respectively located on both sides of the first display area AA1 in the first direction X, that is, on the upper and lower sides of the first display area AA1. This ensures that the connection method of the first power line 161 and the second power line 162 is simple, and the winding 121 allows the second power line 162 to bypass the light-transmitting area BB when it is set, so as to prevent the setting of the second power line 162 from affecting the normal operation of the optical element.

[0071] Optionally, the first sub-power lines 121a and the second sub-power lines 121b may be in a grid shape. The grid-shaped first sub-power lines 121a and the second sub-power lines 121b may further reduce impedance, thereby saving power consumption of the display panel.

[0072] Optional, see Figure 12 The winding 121 includes a third winding 121c and a fourth winding 121d. The third winding 121c is electrically connected to the driving signal line 151. The two ends of the fourth winding 121d are respectively electrically connected to the first sub-power line 162a and the second sub-power line 162b. The fourth winding 121d is located between the third winding 121c and the first display area AA1.

[0073] Specifically, such as Figure 12 As shown, the winding 121 also includes a third winding 121c and a fourth winding 121d. The third winding 121c can be electrically connected to the drive signal line 151, for example, it can be electrically connected to the data signal line located in the third metal layer. The two ends of the fourth winding 121d are respectively connected to the first sub-power line 162a and the second sub-power line 162b, forming the second power line 162 connected to the PVEE signal line, and the first sub-power line 162a and the second sub-power line 162b are also electrically connected to the two ends of the first power line 161 located in the third metal layer, forming a parallel relationship, wherein the fourth winding 121d is located between the third winding 121c and the first display area AA1, that is, the fourth winding 121d is located near the edge area of the first display area AA1, thereby taking advantage of The fourth winding 121d is used to realize the wiring of the first power line 161, which is the same as the third winding 121c connected to the driving signal line 151. It can avoid the sub-pixels and will not affect the luminescence of the sub-pixels. At the same time, the spacers can be raised so that the spacers can effectively support the mask during evaporation, thereby avoiding excessive deformation of the mask and preventing the mask opening from expanding, thereby ensuring the precise alignment of the deposition areas of organic functional layers such as the hole transport layer, the light-emitting layer, and the electron transport layer in the sub-pixels, thereby ensuring the quality of the display panel.

[0074] Based on the same inventive concept, an embodiment of the present invention further provides a display device. Figure 13 Schematic diagram of the structure of a display device provided by an embodiment of the present invention. Figure 13 As shown, the display device includes the display panel 1 of the above embodiment. The display device includes the display panel 1 of any embodiment of the present invention. Therefore, the display device provided by the embodiment of the present invention has the corresponding beneficial effects of the display panel 1 provided by the embodiment of the present invention, which will not be described in detail here. Exemplarily, the display device can be an electronic device such as a mobile phone, a computer, a smart wearable device (e.g., a smart watch), and an in-vehicle display device, which is not limited in the embodiment of the present invention.

[0075] Note that the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments, combinations, and substitutions are possible for those skilled in the art without departing from the scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A display panel, characterized in that: The invention comprises an array substrate and a spacer layer located on a first side surface of the array substrate, wherein a winding layer is provided on the array substrate, the winding layer comprises a plurality of windings, and a plurality of spacers are provided in the spacer layer; The winding wire at least partially overlaps with a vertical projection of at least part of the spacer on a first plane, where the first plane is the plane where the array substrate is located; The array substrate includes a first display area and a second display area, wherein a light-transmitting area is provided in the first display area, and the second display area at least partially surrounds the first display area; The winding line does not overlap with a vertical projection of the light-transmitting area in the first display area on the first plane; The array substrate is further provided with a signal routing layer, the signal routing layer including a plurality of driving signal lines, the plurality of driving signal lines being respectively located on both sides of the first display area in a first direction, the driving signal lines extending along the first direction and being sequentially arranged along a second direction; wherein the first direction and the second direction intersect; At least part of the winding wires are electrically connected to two driving signal lines respectively located on two sides of the first display area in the first direction; The windings include a first winding and a second winding, wherein the first winding and the second winding are respectively located on two sides of the first display area along the second direction; At least a portion of the first winding and the second winding are axially symmetrical with respect to a central axis of the first display area extending along the first direction.

2. The display panel according to claim 1, wherein: The display panel further includes a pixel definition layer, the pixel definition layer is located on the first side surface of the array substrate, and the pixel definition layer includes a plurality of light exit openings; The winding line does not overlap with a vertical projection of the light exit opening of the pixel definition layer on the first plane.

3. The display panel according to claim 2, wherein: The spacer layer and the pixel definition layer are reused in the same layer.

4. The display panel according to claim 2, wherein: The array substrate is provided with an anode layer, and the anode layer includes a plurality of anode units and a plurality of anode same-layer structures; The winding wire and the anode layer are arranged in different layers, and the winding wire and the vertical projection of the anode unit and / or the anode same-layer structure on the first plane at least partially overlap.

5. The display panel according to claim 4, wherein: The anode same-layer structure includes an anode extension portion, and the anode extension portion is connected to the anode unit; A plurality of transistors are provided in the array substrate. The transistors are located on a side of the anode layer away from the first side surface. The anode extension at least partially overlaps with vertical projections of some of the transistors on the first plane.

6. The display panel according to claim 1, wherein: The first display area is provided with an optical element, and the optical element at least partially overlaps with a vertical projection of the light-transmitting area on the first plane.

7. The display panel according to claim 1, wherein: The display panel further includes a color filter substrate, the color filter substrate is opposite to the array substrate, a touch layer is further provided on the color filter substrate, and the touch layer is provided in a different layer from the winding layer; The touch layer includes a plurality of touch traces, and the winding line at least partially overlaps with vertical projections of at least part of the touch traces on the first plane.

8. The display panel according to claim 1, wherein: The display panel further includes a light emitting array layer, and the light emitting array layer is located on the first side surface of the array substrate; The light emitting array layer includes a plurality of pixel units, and the winding wires and vertical projections of the light emitting areas of the pixel units on the first plane do not overlap with each other.

9. The display panel according to claim 8, wherein: The pixel unit includes a plurality of sub-pixels, and the sub-pixels are sequentially arranged in the first direction and the second direction respectively; The winding includes a plurality of sub-winding segments, which are electrically connected in sequence. The sub-winding segments extend along the first direction and / or along the second direction.

10. The display panel according to claim 9, wherein: The sub-winding segments include a first sub-winding segment and a second sub-winding segment. The first sub-winding segment extends along the first direction, and the second sub-winding segment extends along the second direction. The first sub-winding segment and the second sub-winding segment are electrically connected alternately in sequence.

11. The display panel according to claim 8, wherein The pixel unit includes a plurality of sub-pixels, and the sub-pixels are sequentially arranged in a third direction and a fourth direction respectively; wherein the first direction, the second direction, the third direction and the fourth direction intersect in pairs; The winding includes a plurality of sub-winding segments, which are electrically connected in sequence. The sub-winding segments extend along the third direction and / or along the fourth direction.

12. The display panel according to claim 11, wherein: The sub-winding segments include a third sub-winding segment and a fourth sub-winding segment. The third sub-winding segment extends along the third direction, and the fourth sub-winding segment extends along the fourth direction. The third sub-winding segment and the fourth sub-winding segment are electrically connected alternately in sequence.

13. The display panel according to claim 1, wherein The winding layer and the signal routing layer are arranged in different layers and the winding layer is located on a side of the signal routing layer close to the first side surface. An insulating layer is provided between the winding layer and the signal routing layer. The winding is electrically connected to the driving signal line through a via.

14. The display panel according to claim 13, wherein: The array substrate further includes a first power line, the first power line being used to transmit a power signal; the first power line extends around the second display area, and two ends of the first power line are respectively located on two sides of the second display area in the first direction; The winding layer further includes a second power line, two ends of which are electrically connected to two ends of the first power line; the second power line and the vertical projection of the light-transmitting area in the first display area on the first plane do not overlap each other.

15. The display panel according to claim 14, wherein: The second power line includes a first sub-power line, a second sub-power line and at least one winding line; The first sub-power line and the second sub-power line are respectively located on two sides of the first display area in the first direction, and at least one winding line electrically connects the first sub-power line and the second sub-power line.

16. The display panel according to claim 15, wherein: The winding includes a third winding and a fourth winding, the third winding is electrically connected to the drive signal line, the two ends of the fourth winding are respectively electrically connected to the first sub-power line and the second sub-power line, and the fourth winding is located between the third winding and the first display area.

17. The display panel according to claim 15, wherein: The first sub-power lines and the second sub-power lines are in a grid shape.

18. A display device, characterized in that: The display panel comprises the display panel according to any one of claims 1 to 17.

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