DISPLAY PANEL AND DISPLAY DEVICE

The present application discloses a display panel and a display device, including a plurality of pixel islands, a plurality of connection bridges connecting the plurality of pixel islands, and first power lines and second power line arranged on the plurality of connection bridges and conducting the plurality of pixel islands, wherein the plurality of connection bridges include first connection bridges arranged along a first direction, and only the first power line or the second power line is provided on each of the first connection bridges.

FIELD OF INVENTION

The present application relates to the field of display technology, and in particular, to a display panel and a display device including the display panel.

DESCRIPTION OF PRIOR ART

Stretchable display, as an important technical upgrade of flexible display after foldable display, has an ability to be deformed and retractable in any direction. It can effectively solve the existing technical problems of 4 curved surfaces, non-Gaussian curved surfaces, and bending of a display surface, thus having a wide range of application prospects.

In the existing stretchable display panel, in order to facilitate the tensile resilience, the substrate is dispersed in a shape of islands, and the islands are connected to each other by ribbon-shaped connection areas, wherein the pixel circuits are distributed on the islands, and the connection wires between the pixel circuits are distributed on the ribbon-shaped connection area.

However, when the display panel is stretched and deformed, the connection area will be deformed under force, and the resilience resistance of the connection area is inversely proportional to its width. Currently, there are many signal lines in the connection areas, including two power signal lines, namely a VDD power line and a VSS power line, and due to a large current of the power lines, they have a wider line width, resulting in a wider connection area, which is not conducive to the stretching and deformation of the connection area, and then impacting the stretching and bending performance.

SUMMARY OF INVENTION

Technical Problem

Embodiments of the present application provide a display panel and a display device, which can solve the problem that in the prior art, due to the large number of signal lines provided in the connection area, the connection area is wider, which is not conducive to the stretching and deformation of the connection area, thereby impacting the display. Technical issues of the tensile and bending properties of the panel.

Technical Solution

In order to solve the above technical problems, the present application provides a display panel, which includes:a plurality of pixel islands arranged along a first direction and a second direction which intersect each other;a plurality of connection bridges, including first connection bridges connecting adjacent ones of the pixel islands arranged along the first direction; anda signal line group disposed on the plurality of connection bridges, wherein the signal line group includes a first power line and a second power line, only the first power line or the second power line is provided on each of the first connection bridges, and the first power line or the second power line is connected to adjacent ones of the pixel islands arranged along the first direction.

In an embodiment of the present application, one of the first connection bridges provided with only the first power line and one of the first connection bridges provided with only the second power line are alternately arranged in the first direction.

In an embodiment of the present application, ones of the first connection bridges provided with only the first power line and ones of the first connection bridges provided with only the second power line are alternately arranged in the second direction.

In an embodiment of the present application, two of the first connection bridges provided with only the first power line and two of the first connection bridges provided with only the second power line are alternately arranged in the second direction.

In an embodiment of the present application, the plurality of connection bridges further include second connection bridges connecting adjacent ones of the pixel islands arranged along the second direction, and the first power line and the second power line are provided on each of the second connection bridges to connect adjacent ones of the pixel islands arranged along the second direction.

In an embodiment of the present application, the first power line located on one of the first connection bridges is connected to the first power line located on one of the second connection bridges to form a first grid structure, and the second power line located on one of the first connection bridges is connected to the second power line located on one of the second connection bridges to form a second grid structure.

In an embodiment of the present application, the first power line and the second power line intersect each other on part of the plurality of pixel islands, and a grid of the first grid structure corresponding to the intersecting first power line and a grid of the second grid structure corresponding to the intersecting second power line have an overlapping portion.

In an embodiment of the present application, the signal line group further includes a reset signal line, a light-emitting control signal line, a data line, and a scan line; andwherein the reset signal line, the light-emitting control signal line, and the scan line are provided on the first connection bridges to connect adjacent ones of the pixel islands arranged along the first direction, and the data line is disposed on the second connection bridges to connect adjacent ones of the pixel islands arranged along the second direction.

In an embodiment of the present application, each of the plurality of connection bridges includes a substrate, and a first conductive layer, an insulating layer, and a second conductive layer sequentially disposed on the substrate, the first power line, the second power line, and the reset signal line are disposed in the second conductive layer; and the light-emitting control signal line, the data line, and the scan line are disposed in the first conductive layer.

In an embodiment of the present application, the first power line includes a VDD power supply signal line, and the second power line includes a VSS power supply signal line.

According to the above object of the present application, a display device is provided, the display device includes a display panel, and the display panel includes:a plurality of pixel islands arranged along a first direction and a second direction which intersect each other;a plurality of connection bridges, including first connection bridges connecting adjacent ones of the pixel islands arranged along the first direction; anda signal line group disposed on the plurality of connection bridges, wherein the signal line group includes a first power line and a second power line, only the first power line or the second power line is provided on each of the first connection bridges, and the first power line or the second power line is connected to adjacent ones of the pixel islands arranged along the first direction.

In an embodiment of the present application, one of the first connection bridges provided with only the first power line and one of the first connection bridges provided with only the second power line are alternately arranged in the first direction.

In an embodiment of the present application, ones of the first connection bridges provided with only the first power line and ones of the first connection bridges provided with only the second power line are alternately arranged in the second direction.

In an embodiment of the present application, two of the first connection bridges provided with only the first power line and two of the first connection bridges provided with only the second power line are alternately arranged in the second direction.

In an embodiment of the present application, the plurality of connection bridges further include second connection bridges connecting adjacent ones of the pixel islands arranged along the second direction, and the first power line and the second power line are provided on each of the second connection bridges to connect adjacent ones of the pixel islands arranged along the second direction.

In an embodiment of the present application, the first power line located on one of the first connection bridges is connected to the first power line located on one of the second connection bridges to form a first grid structure, and the second power line located on one of the first connection bridges is connected to the second power line located on one of the second connection bridges to form a second grid structure.

In an embodiment of the present application, the first power line and the second power line intersect each other on part of the plurality of pixel islands, and a grid of the first grid structure corresponding to the intersecting first power line and a grid of the second grid structure corresponding to the intersecting second power line have an overlapping portion.

In an embodiment of the present application, the signal line group further includes a reset signal line, a light-emitting control signal line, a data line, and a scan line; andwherein the reset signal line, the light-emitting control signal line, and the scan line are provided on the first connection bridges to connect adjacent ones of the pixel islands arranged along the first direction, and the data line is disposed on the second connection bridges to connect adjacent ones of the pixel islands arranged along the second direction.

In an embodiment of the present application, each of the plurality of connection bridges includes a substrate, and a first conductive layer, an insulating layer, and a second conductive layer sequentially disposed on the substrate, the first power line, the second power line, and the reset signal line are disposed in the second conductive layer; and the light-emitting control signal line, the data line, and the scan line are disposed in the first conductive layer.

In an embodiment of the present application, the first power line includes a VDD power supply signal line, and the second power line includes a VSS power supply signal line.

Advantageous Effect

Compared with the prior art, in the present application, only the first power line or the second power line is provided on each of the first connection bridges, thereby reducing a number of power lines on the first connection bridge, and since each of the power lines has a large current and a wide line width, the present application can greatly reduce a width of the first connection bridge, improve the stretchability of the connection bridge, and elevate the stretching and bending performance of the display panel.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

The technical solutions in the embodiments of the present application will be clearly and completely described in the following with reference to the accompanying drawings in the embodiments. It is apparent that the described embodiments are only a part of the embodiments of the present application, and not all of them. All other embodiments obtained by a person skilled in the art based on the embodiments of the present application without creative efforts are within the scope of the present application.

In the description of the present application, it should be understood that the terms “center”, “longitudinal”, “transverse”, “length”, “width”, “thickness”, “upper”, “lower”, “front”, “Rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, and the like are based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, structure and operation in a specific orientation, which should not be construed as limitations on the present invention. In addition, the terms “first” and “second” are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as “first” and “second” may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of “a plurality” is two or more, unless specifically defined otherwise.

In the description of the present application, it should be noted that the terms “installation”, “connected”, and “connected” should be understood in a broad sense unless explicitly stated and limited otherwise. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection or an electrical connection; it can be a direct connection; or it can be an indirect connection through an intermediate medium; or it can be a communication between two components.

In the present invention, unless otherwise expressly stated and limited, the formation of a first feature over or under a second feature in the description that follows may include embodiments in which the first and second features are formed in direct contact, and may also include embodiments in which additional features may be formed between the first and second features, such that the first and second features may not be in direct contact. Moreover, the first feature “above”, “over” and “on” the second feature includes the first feature directly above and above the second feature, or merely indicating that the first feature is at a level higher than the second feature. The first feature “below”, “under” and “beneath” the second feature includes the first feature directly below and obliquely below the second feature, or merely the first feature has a level lower than the second feature.

The following disclosure provides many different embodiments or examples for realizing different structures of the present application. To simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and/or reference letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and/or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the present applications of other processes and/or the use of other materials.

The embodiments of the present application are directed to solve the technical problems in the existing display panel and display device, in which, due to a large number of signal lines provided in connection areas, the connection areas are wider, which is not conducive to the stretching and deformation of the connection areas, thereby impacting the stretching and bending performance of the display panel.

In order to solve the above technical problems, the present application provides a display panel. Referring toFIG.1AandFIG.2. The display panel includes: a plurality of pixel islands20arranged along a first direction A and a second direction B that intersect each other; a plurality of connection bridges30, including a first connection bridge301that connects adjacent ones of the pixel islands20arranged along the first direction A; and a signal line group disposed on the plurality of connection bridges30, the signal line group includes a first power line101and a second power line102, wherein only the first power line101or the second power lines102are provided on the first connection bridge301, and the first power line101or the second power line102connects adjacent ones of the pixel islands20arranged along the first direction A.

In the implementation process, referring toFIG.5andFIG.7. In the existing stretchable display panel, at least VDD power line2and VSS power line3are provided on the connection bridge (not shown) connecting the adjacent pixel islands1, and at least two power lines are provided on the connection bridge along the row direction and the column direction. In the prior art, in order to reduce the width of the connection bridge, the wiring structure design shown inFIG.7is adopted, in which the signal lines are divided into upper and lower layers, including a lower signal line91arranged on a substrate8, an insulating layer11covering the lower signal line91, an upper signal line92arranged on the insulating layer11, and a functional layer2arranged on the upper signal line92. However, because there are more signal lines, even if it is arranged in two layers, the effect is limited. In the display panel provided by the embodiment of the present application, by providing the power line grid structure shown inFIG.1, the number of power lines on the first connection bridge301arranged along the first direction A is reduced by one. Moreover, because the current of the power line is relatively large, the line width is usually set to be relatively wide. Therefore, in an embodiment of the present application, by reducing one power line, the width of the first connection bridge301is reduced, thereby making the stretching and bending performance of the first connection bridge301improved, thus improving the stretching and bending performance of the display panel.

In an embodiment of the present application, only the first power line101or the second power lines102are provided on the first connection bridge301along the first direction A to realize the reduced width of the first connection bridge301, thereby improving the bending and stretching performance of the display panel. Therefore, the arrangement of the signal line grid structure having the above-mentioned features provided by the embodiments of the present application falls into the scope of protection of the present application.

Furthermore, still referring toFIG.1AandFIG.2. As shown inFIG.1AandFIG.2, the display panel includes a plurality of pixel islands20, and a plurality of connection bridges30connecting the plurality of pixel islands20, and a signal line group30at least disposed on the plurality of connection bridges and connecting the plurality of pixel islands20.

Specifically, the plurality of pixel islands20are arranged in rows and columns along a first direction A and a second direction B that intersect each other, and the connection bridges30include the first connection bridge301arranged along the first direction A and the second connection bridge302arranged along the second direction B, wherein the first connection bridge301connects adjacent ones of the pixel islands20arranged along the first direction A, and the second connection bridge302connects adjacent ones of the pixel islands20arranged along the second direction B.

The signal line group includes a first power line101and a second power line102, the first connection bridge301is provided with only the first power line101or the second power line102, the first power line101or the second power line102signally connects adjacent ones of the pixel islands20arranged along the first direction A, and the first power line101and the second power line102are arranged on the second connection bridge302along the second direction B, and signally connects adjacent ones of the pixel islands20arranged along the second direction B, that is, there are a plurality of second connection bridges302along the second direction B, and each of the second connection bridges302is provided with the first power line101and the second power line102thereon.

In an embodiment of the present application, one of the first connection bridges301provided with only the first power line301and one of the first connection bridges301provided with only the second power line102are alternately arranged in the first direction A, so that only one power line, namely the first power line101or the second power line102, is provided on each of the first connection bridges301.

In addition, ones of the first connection bridges301provided with only the first power line101and ones of the first connection bridges301provided with only the second power line102are alternately arranged in the second direction B, It should be noted that the first connection bridges301can be alternated regularly or irregularly in the second direction B, wherein, for regular alternation, one of the first connection bridges301provided with only the first power line101and one of the first connection bridges301provided with only the second power line102are alternately arranged in the second direction B; or two of the first connection bridges301provided with only the first power line101and two of the first connection bridges301provided with only the second power line102are alternately arranged in the second direction B; or three of the first connection bridges301provided with only the first power line101and three of the first connection bridges301provided with only the second power line102are alternately arranged in the second direction B; or alternately arranged in a stepwise decrease or increase manner. For example, the alternate arrangement in a stepwise increase manner includes from top to bottom: a first connection bridge301provided with only the first power line101, and a s first connection bridge301provided with only the second power line102, two first connection bridges301each provided with only the first power line101, two first connection bridges301each provided with only the first power line101. Alternatively, for irregular alternation, that is, the number of the first connection bridges301alternately repeated along the second direction B is irregular, but the present application is not particularly limited thereto.

The power line grid structure provided by embodiments of the present application will be described in detail below in conjunction with specific embodiments.

In an embodiment of the present application, referring toFIG.1AandFIG.2, two of the first connection bridges301each only provided with the first power line101and two of the first connection bridges301each only provided with the second power line102are alternately arranged in the second direction B. Specifically, every two of the first connection bridges301are arranged in pairs along the second direction B, and each of the first connection bridges301in each of the groups is provided with the first power line101or the second power line102, that is, the first connection bridges301arranged along the second direction B in each of the pairs is provided with the same power line, which is the first power line101or the second power line102. Moreover, the first power line101and the second power line102are respectively provided on adjacent two of the pairs of the first connection bridges301, that is, the power lines provided on the adjacent two pairs of the first connection bridges301are different types, and the first power line101and the second power line102are alternately arranged.

In this embodiment, the first power line101located on the first connection bridge301is connected to the first power line101located on the second connection bridge302to form a first grid structure, and the second power line102on the first connection bridge301is connected to the second power line102on the second connection bridge302to form a second grid structure, that is, the first power lines101are signally connected to form the first grid structure with a grid, and the second power lines102are signally connected to form the second grid structure with a grid. Compared with the prior art in which the power lines are all set up one by one independently, in the embodiments of the present application, the power lines are connected to form a grid structure, which improves the uniformity of signal transmission, thereby reducing the in-plane pressure drop of the display panel.

Further, in this embodiment, on the second connection bridge302, the first power line101and the second power line102are arranged in the same manner, as can be seen fromFIG.1A, the first power line101are arranged on the left side, and the second power line102are arranged on the right side, wherein the first power lines101and the second power lines102intersect on a part of the pixel islands20, and does not intersect on another part of the pixel islands20. Specifically, when the first power lines101and the second power lines102intersect on the pixel islands20, the grid of the first grid structure corresponding to the intersecting first power lines101and the grid of the second grid structure corresponding to the intersecting second power lines102have an overlapping part.

In this embodiment, one of the pixel islands20having the first power line101and the second power line102that intersect each other, and the pixel islands20each having the first power line101and the second power line102that intersect and the pixel islands20each having the first power line101and the second power line102that do not intersect each other are alternately arranged in the first direction A; two of the pixel islands20each having the first power line101and the second power line102that intersect each other and two of the pixel islands20each having the first power line101and the second power line102that do not intersect each other are alternately arranged in the second direction B.

The power line grid structure provided in this embodiment improves the display uniformity of the display panel, so that the number of power lines arranged along the first direction A on the first connection bridge301is reduced by one, thereby reducing the width of the first connection bridge301, and improving the stretching and bending performance of the first connection bridge301, thus improving the stretching and bending performance of the display panel.

In another embodiment of the present application, referring toFIG.1BandFIG.2, its difference from the previous embodiments is that one of the first connection bridge301provided with only the first power line101and one of the first connection bridges301provided with only the second power line102are alternately arranged in the second direction B, that is, any adjacent ones of first connection bridges301along the second direction B are provided with different types of power lines thereon, which are the first power line101or the second power line102.

In addition, in this embodiment, on the second connection bridge302, the first power line101and the second power line102are arranged in the same manner, as can be seen fromFIG.1B, the first power line101are arranged on the left side, and the second power line102are arranged on the right side, wherein the first power lines101and the second power lines102intersect on a part of the pixel islands20, and does not intersect on another part of the pixel islands20. Specifically, when the first power lines101and the second power lines102intersect on the pixel islands20, the grid of the first grid structure corresponding to the intersecting first power lines101and the grid of the second grid structure corresponding to the intersecting second power lines102have an overlapping part.

In this embodiment, one of the pixel islands20having the first power line101and the second power line102that intersect each other, and the pixel islands20each having the first power line101and the second power line102that intersect and the pixel islands20having the first power line101and the second power line102that do not intersect each other are alternately arranged in the first direction A; one of the pixel islands20each having the first power line101and the second power line102that intersect each other and one of the pixel islands20having the first power line101and the second power line102that do not intersect each other are alternately arranged in the second direction B.

The power line grid structure provided in this embodiment improves the display uniformity of the display panel, so that the number of power lines arranged along the first direction A on the first connection bridge301is reduced by one, thereby reducing the width of the first connection bridge301, and improving the stretching and bending performance of the first connection bridge301, thus improving the stretching and bending performance of the display panel.

In another embodiment of the present application, Referring toFIG.1CandFIG.2, its difference from the previous embodiment is that the first connection bridges301each provided with only the first power line101and the first connection bridges301each provided with only the second power line102are alternately arranged irregularly in the second direction B, that is, the first connection bridges301each provided with only the first power line101and the first connection bridges301each provided with only the second power line102are alternately arranged in repetitions each having different numbers of ones, and there is no regularity. As shown inFIG.1C, the manner includes from top to bottom: two first connection bridges301each provided with only the first power line101, one first connection bridge301provided with only the second power line102, one first connection bridge301provided with only the first power line101, and three first connection bridges301each provided with only the second power line102.

In addition, in this embodiment, on the second connection bridge302, the first power line101and the second power line102are arranged in the same manner, as can be seen fromFIG.1C, the first power line101are arranged on the left side, and the second power line102are arranged on the right side, wherein the first power lines101and the second power lines102intersect on a part of the pixel islands20, and does not intersect on another part of the pixel islands20. Specifically, when the first power lines101and the second power lines102intersect on the pixel islands20, the grid of the first grid structure corresponding to the intersecting first power lines101and the grid of the second grid structure corresponding to the intersecting second power lines102have an overlapping part.

In this embodiment, one of the pixel islands20having the first power line101and the second power line102that intersect each other, and the pixel islands20each having the first power line101and the second power line102that intersect and the pixel islands20each having the first power line101and the second power line102that do not intersect each other are alternately arranged in the first direction A; ones of the pixel islands20each having the first power line101and the second power line102that intersect each other and ones of the pixel islands20each having the first power line101and the second power line102that do not intersect each other are alternately arranged irregularly in the second direction B.

The power line grid structure provided in this embodiment improves the display uniformity of the display panel, so that the number of power lines arranged along the first direction A on the first connection bridge301is reduced by one, thereby reducing the width of the first connection bridge301, and improving the stretching and bending performance of the first connection bridge301, thus improving the stretching and bending performance of the display panel.

In another embodiment of the present application, referring toFIG.1DandFIG.2, its difference from the first embodiment is that, on the second connection bridge302, the first power line101and the second power line102have different arrangements. It can be seen fromFIG.1Dthat the first power lines101and second power lines102on adjacent rows of the second connection bridges302arranged along the second direction B are symmetrically distributed, the first power lines101are arranged on the left side, the second power lines102are arranged on the right side, and the first power lines101are arranged on the right side, and the second power lines102on the left side.

The first power lines101and the second power lines102intersect on a part of the pixel islands20, and does not intersect on another part of the pixel islands Specifically, when the first power lines101and the second power lines102intersect on the pixel islands20, the grid of the first grid structure corresponding to the intersecting first power lines101and the grid of the second grid structure corresponding to the intersecting second power lines102have an overlapping part.

In addition, in this embodiment, each of the pixel islands20in the same row arranged along the first direction A has the first power line101and the second power line102that intersect each other, or has the first power line101and the second power line102that do not intersect each other. In addition, two of the pixel islands20each having the first power line101and the second power line102that intersect each other, and two of the pixel islands20each having the first power line101and the second power line102that do not intersect each other, are alternately arranged in the second direction B.

The power line grid structure provided in this embodiment improves the display uniformity of the display panel, so that the number of power lines arranged along the first direction A on the first connection bridge301is reduced by one, thereby reducing the width of the first connection bridge301, and improving the stretching and bending performance of the first connection bridge301, thus improving the stretching and bending performance of the display panel.

In another embodiment of the present application, referring toFIG.1EandFIG.2, its difference from the previous embodiment is that the first connection bridge301provided with only the first power line101and the first connection bridge301provided with only the second power line102are alternately arranged in the second direction B, that is, adjacent ones of the first connection bridge301in the second direction B are provided with different types of power lines, which are the first power line101or the second power line102.

The first power lines101and the second power lines102intersect on a part of the pixel islands20, and does not intersect on another part of the pixel islands20. Specifically, when the first power lines101and the second power lines102intersect on the pixel islands20, the grid of the first grid structure corresponding to the intersecting first power lines101and the grid of the second grid structure corresponding to the intersecting second power lines102have an overlapping part.

In addition, in this embodiment, each of the pixel islands20in the same row arranged along the first direction A has the first power line101and the second power line102that intersect each other, or has the first power line101and the second power line102that do not intersect each other. In addition, one of the pixel islands20having the first power line101and the second power line102that intersect each other, and one of the pixel islands20having the first power line101and the second power line102that do not intersect each other, are alternately arranged in the second direction B.

The power line grid structure provided in this embodiment improves the display uniformity of the display panel, so that the number of power lines arranged along the first direction A on the first connection bridge301is reduced by one, thereby reducing the width of the first connection bridge301, and improving the stretching and bending performance of the first connection bridge301, thus improving the stretching and bending performance of the display panel.

In another embodiment of the present application, referring toFIG.1FandFIG.2, its difference from the previous embodiment is that ones of the first connection bridges301each provided with only the first power line101and ones of the first connection bridges301each provided with only the second power line102are alternately arranged irregularly in the second direction B, that is, the first connection bridges301each provided with only the first power line101and the first connection bridges301each provided with only the second power line102are alternately arranged in repetitions each having different numbers of ones, and there is no regularity. As can be seen fromFIG.1F, the manner includes from top to bottom: two first connection bridges301each provided with only the first power line101, one first connection bridge301provided with only the second power line102, one first connection bridge301provided with only the first power line101, and three first connection bridges301each provided with only the second power line102.

The first power lines101and the second power lines102intersect on a part of the pixel islands20, and does not intersect on another part of the pixel islands Specifically, when the first power lines101and the second power lines102intersect on the pixel islands20, the grid of the first grid structure corresponding to the intersecting first power lines101and the grid of the second grid structure corresponding to the intersecting second power lines102have an overlapping part.

In addition, in this embodiment, each of the pixel islands20in the same row arranged along the first direction A has the first power line101and the second power line102that intersect each other, or has the first power line101and the second power line102that do not intersect each other. In addition, ones of the pixel islands each having the first power line101and the second power line102that intersect each other, and ones of the pixel islands20each having the first power line101and the second power line102that do not intersect each other, are alternately arranged irregularly in the second direction B. It can be seen fromFIG.1Fthat, the manner includes from top to bottom: two of the pixel islands20having the first power line101and the second power line102that do not intersect each other, one of the pixel islands20having the first power line101and the second power line102that intersect each other, one of the pixel islands20of the first power line101and the second power line102that intersect each other, and three of the pixel islands20each having the first power line101and the second power line102that intersect each other.

The power line grid structure provided in this embodiment improves the display uniformity of the display panel, so that the number of power lines arranged along the first direction A on the first connection bridge301is reduced by one, thereby reducing the width of the first connection bridge301, and improving the stretching and bending performance of the first connection bridge301, thus improving the stretching and bending performance of the display panel.

In another embodiment of the present application, referring toFIG.1GandFIG.2, its difference from the first embodiment is that, on the second connection bridge302, the first power line101and the second power line102have different arrangements. It can be seen fromFIG.1Gthat adjacent ones of the rows of the second connection bridges302arranged along the second direction B form a group, and the first power line101and the second power line102on each group of the second connection bridge302have the same arrangement; the first power line101and the second power line102on the adjacent ones of the groups of the second connection bridges302have opposite arrangements, wherein the first power lines101are arranged on the left side, and the second power lines102are arranged on the right side; or the first power lines101are arranged on the right, and the second power lines102are arranged on the left.

The first power lines101and the second power lines102intersect on a part of the pixel islands20, and does not intersect on another part of the pixel islands Specifically, when the first power lines101and the second power lines102intersect on the pixel islands20, the grid of the first grid structure corresponding to the intersecting first power lines101and the grid of the second grid structure corresponding to the intersecting second power lines102have an overlapping part.

Furthermore, in this embodiment, two of the pixel islands20each having the first power line101and the second power line102that intersect each other, and two of the pixel islands20each having the first power line101and the second power line102that do not intersect each other, are alternately arranged in the first direction A; in addition, two of the pixel islands20each having the first power line101and the second power line102that do not intersect each other, are alternately arranged in the second direction B.

The power line grid structure provided in this embodiment improves the display uniformity of the display panel, so that the number of power lines arranged along the first direction A on the first connection bridge301is reduced by one, thereby reducing the width of the first connection bridge301, and improving the stretching and bending performance of the first connection bridge301, thus improving the stretching and bending performance of the display panel.

It should be noted that in the foregoing embodiments, only a part of the power line grid structures is listed for illustration, but the present application is not particularly limited thereto. In the foregoing embodiments, the first connection bridges301each only provide with the first power line101and the first connection bridges301each only provided with the second power line102can be arranged in repetitions each by gradually increased or decreased numbers of ones, and the first power lines101and the second power lines102on the second connection bridges302can be arranged regularly or irregularly, that is, a power line grid structure which can be derived from the power line grid structure in the above embodiments and the description fall within the protection scope of the present application.

Furthermore, referring toFIG.1A,FIG.2andFIG.3, each of the pixel islands20is provided with a pixel unit, whereinFIG.3is a schematic diagram of a signal line group arrangement structure corresponding to the pixel islands provided by an embodiment of the present application, it only shows the arrangement direction of the signal line group instead of showing the specific pixel circuit connection structure, and embodiments of the present application do not particularly limit the pixel circuit structure applied thereto.

It should be noted that, in an embodiment of the present application, the first power line101may be a VDD power signal line, the second power line102may be a VSS power signal line, and the signal line group may also include a first scan line1031, a second scan line1032, a light-emitting control signal line104, a reset signal line105, a first data line1061, a second data line1062, and a third data line1063, wherein the pixel unit may include three sub-pixels to correspond to the first data line1061, the second data line1062, and the third data line1063, respectively. In a pixel unit, the first scan line1031can transmit the scan signal of the current row, the second scan line1032can transmit the scan signal of the previous row, and the first data line1061, the second data line1062, and the third data line1063can transmit data signals.

Referring toFIG.5andFIG.6, which show the existing arrangement structure design of the pixel unit signal line group and the arrangement design of the power lines on the connection bridges, wherein the VDD power line2, the VSS power line3, the first scan line41, the second scan line42, the light-emitting control signal line5, and the reset signal line6are arranged in the same direction, and extend along the first direction A to the connection bridge. The VDD power line2, the VSS power line3, the first data line71, the second data line72, and the third data line73are arranged in another direction and extend along the second direction B to the connection bridge. That is, on the connection bridge, the signal line group arranged along the first direction A has 6 lines, and the signal line group arranged along the second direction B has 5 lines. Therefore, a number of the power lines arranged in the first direction A is increased by one, thereby increasing the width of the connection bridges arranged in the first direction A, and limiting the stretching and bending performance of the connection bridges arranged in the first direction A.

Still referring toFIG.1A,FIG.2andFIG.3, in an embodiment of the present application, in each of the pixel islands20, the first power line101, the second power line102, the first scan line1031, the second scan line1032, the light-emitting control signal line104, and the reset signal line105are arranged along a third direction; and the first power line101, the second power line102, the first data line1061, the second data line1062, and the third data line1063are arranged in a fourth direction. It should be noted that the third direction is the same direction as the first direction A, and the fourth direction is the same direction as the second direction B; or the third direction is the same direction as the second direction B, and the fourth direction is the same direction as the first direction A. Further, the first power line101, the second power line102, the first scan line1031, the second scan line1032, the light-emitting control signal line104, and the reset signal line105extend along the first direction A to the first connection bridge301; and the first power line101, the second power line102, the first data line1061, the second data line1062, and the third data line1063extend along the second direction B to the second connection bridge302. In each of the pixel islands20, the first power line101extends to the first connection bridge301in only one direction, and the second power line102extends to the first connection bridge in another direction301, which is opposite to the extension direction of the first power lines101, so that each of the first connection bridges301is provided with only one power line, that is, the signal line group provided on the first connection bridge301has 5 lines, which are reduced by one, compared with the prior art. As such, the display panel provided by the embodiment of the present application has a power line grid structure as shown inFIG.1A, so that the signal line group arranged along the second direction B has 5 signal lines, and the signal line group arranged along the second direction B also has 5 signal lines, thereby reducing the number of signal lines of the signal line group on the first connection bridge301and reducing width of the first connection bridge301, thus improving the tensile and bending performance. In addition, the embodiments of the present application only take the above-mentioned signal line group as an example for illustration, and adjustments can be made according to the type and number of the actual signal line groups during the implementation process.

In addition, referring toFIG.4, which is a schematic diagram of the cross-sectional structure of the connection bridge30provided by this embodiment of the present application, on the first connection bridge301, due to the grid structure design of the power lines provided by the embodiment of the present application, the first connection bridge301is provided with 5 signal lines.

Specifically, each of the connection bridges30includes a substrate10, a first conductive layer401disposed on the substrate10, an insulating layer disposed on the substrate10and covering the first conductive layer40150, a second conductive layer402disposed on the insulating layer50, and a functional layer60disposed on the insulating layer402and covering the second conductive layer402, wherein the functional layer60may be a planarization layer, pixel definition layer, or so on.

In an embodiment of the present application, the first power line101, the second power line102, and the reset signal line105are located in the second conductive layer402; and the light-emitting control signal line104, the data line106, and the scan line103are correspondingly located in the first conductive layer401.

For the first connection bridge301, the first conductive layer401includes the first scan line1031, the second scan line1032, the light-emitting control signal line104, and the second conductive layer402includes the first power line101and the reset signal line105, or the second power line102and the reset signal line105. For the second connection bridge302, the first conductive layer401includes the first data line1061, the second data line1062, and the third data line1063, and the second conductive layer402includes the first power line101and the second power line102.

The number of signal lines in the signal line group corresponding to the second conductive layer402is less than the number of signal lines in the signal line group corresponding to the first conductive layer401, the most lines in the signal line group corresponds to the second conductive layer402are power lines, and the amount of current is relatively large, such that the width of the lines in the signal line group corresponding to the first conductive layer401is smaller than the width of the lines in the signal line group corresponding to the second conductive layer402, but the present application is not particularly limited thereto. The width of each signal line in the signal line group can be set according to actual conditions. The present application only provides one embodiment for illustration.

In addition, referring toFIG.2, in an embodiment of the present application, each or more of the plurality of connection bridges30are each arranged in a shape of one or more arc-curved segments between adjacent ones of the pixel islands20. When the display panel is stretched or bent, the connection bridges30can be straightened or bent so that the display panel can be deformed, and the number of arc-curved segments of each of the connection bridges30can be the same or different, and the number of arc-curved segments can be set differently according to the corresponding deformation stress of the display panel, so as to improve the stretching and bending performance of the display panel.

Embodiments of the present application also provides a display device, and the display device includes the display panel described in the above-mentioned embodiment, wherein the structure of the display panel is the same as that described in the above-mentioned embodiment, and will not be repeated herein for brevity.

In the embodiments of the present application, by arranging a larger number of alternately connected first power lines and second power lines on the first connection bridges along the first direction, each of the first connection bridges is provided with only the first power line or the second power line, that is, provided with only one power line, so that the number of lines on the first connection bridge is reduced, thereby reducing the width of the first connection bridge, improving the stretchability of the connection bridge, and improving the stretching and bending performance of the display device. Meanwhile, the first power lines and the second power lines in an embodiment of the present application are connected to each other to form a grid structure, so that the signal transmission is more uniform, and the in-plane pressure drop of the display panel is reduced, thereby improving the display uniformity of the display device.

In the above embodiments, the descriptions of each embodiment have their own emphasis. The parts that are not described in detail in an embodiment can be referred to the detailed descriptions in other embodiments above, which will not be repeated herein for brevity.

The display panel and display device provided in the embodiments of the present application have been described in detail above. Specific examples are used in this document to explain the principles and implementation of the present invention. The descriptions of the above embodiments are only for understanding the method of the present invention and its core ideas, to help understand the technical solution of the present application and its core ideas, and a person of ordinary skill in the art should understand that it can still modify the technical solution described in the foregoing embodiments, or equivalently replace some of the technical features. Such modifications or replacements do not depart the spirit of the corresponding technical solutions beyond the scope of the technical solutions of the embodiments of the present application.