Display panel and display device

Abstract

A display panel (10) and a display device (1). The display panel (10) comprises a substrate (11), an array film layer (12), and a polarizing layer (13); the array film layer (12) comprises a first potential line (12a1), a second potential line (12a2), and at least one first signal line (12c); the first potential line (12a1) and the second potential line (12a2) are both arranged on a layer different from that of the first signal line (12c), and the orthographic projections of the first potential line (12a1) and the second potential line (12a2) on the substrate (11) are spaced apart from each other; the potential of the first potential line (12a1) and the potential of the first signal line (12c) are both greater than 0, and the potential of the second potential line (12a2) is less than 0, or the potential of the first potential line (12a1) and the potential of the first signal line (12c) are both less than 0, and the potential of the second potential line (12a2) is greater than 0; the distance between a first overlapping area and a first orthographic projection is less than the distance between a second overlapping area and the first orthographic projection.

Description

Display panel and display device

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202411604120.2, filed on November 11, 2024, entitled “Display Panel and Display Device”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of display technology, and in particular to a display panel and display device. Background Technology

[0004] Organic Light Emitting Diode (OLED) display technology is considered the most promising next-generation flat panel display technology. Compared to liquid crystal displays, OLED technology has advantages such as low energy consumption, low cost, self-emissiveness, wide viewing angle, and fast response speed. However, current OLED display panels are still prone to display abnormalities. Summary of the Invention

[0005] Therefore, it is necessary to provide a display panel and display device that can improve display abnormality problems.

[0006] In a first aspect, embodiments of this application provide a display panel, comprising: a substrate, an array film layer, and a polarizing layer.

[0007] An array film layer is disposed on one side of a substrate; the array film layer includes a first potential line, a second potential line, and at least one first signal line; the first potential line and the second potential line are both disposed in a different layer from the first signal line, and the orthogonal projections of the first potential line and the second potential line on the substrate are spaced apart; the potential of the first potential line and the potential of the first signal line are both greater than 0, and the potential of the second potential line is less than 0; or, the potential of the first potential line and the potential of the first signal line are both less than 0, and the potential of the second potential line is greater than 0.

[0008] A polarizing layer is disposed on the side of the array film layer away from the substrate.

[0009] In this configuration, at least one first signal line has a first overlapping region with the first potential line on the substrate, and a second overlapping region with the second potential line on the substrate. The polarizing layer has a first positive projection on the substrate. The positive projections of the first and second potential lines on the substrate are spaced apart from the first positive projection. The distance between the first overlapping region and the first positive projection is less than the distance between the second overlapping region and the first positive projection.

[0010] In the aforementioned display panel, the first signal line and the first potential line have the same potential polarity (e.g., both are greater than 0 or both are less than 0), while the first signal line and the second potential line have opposite potential polarities (e.g., one is greater than 0 and the other is less than 0). By adjusting the positions of the first and second potential lines, the distance between the overlapping area with opposite potential polarities and the first orthogonal projection of the polarizing layer is made greater than the distance between the overlapping area with the same potential polarities and the first orthogonal projection of the polarizing layer. This increases the distance between the overlapping area and the polarizing layer, lengthening the migration path of ions in the polarizing layer. This makes it less likely for ions in the polarizing layer to migrate to the overlapping area, thereby reducing the risk of electrochemical corrosion in the overlapping area and improving the display panel's susceptibility to display abnormalities.

[0011] In one embodiment, the orthogonal projection of the first potential line is located between the orthogonal projection of the second potential line and the first orthogonal projection.

[0012] Optionally, the same first signal line intersects with both the first potential line and the second potential line.

[0013] Optionally, the display panel also includes bonding pads, with the orthographic projection of the second potential line located between the orthographic projection of the first potential line and the orthographic projection of the bonding pads on the substrate.

[0014] In one embodiment, the display panel further includes a barrier structure. In the thickness direction of the substrate, the barrier structure is disposed on the side of the first potential line, the second potential line and the first signal line away from the substrate, and the film layer in which the barrier structure is located is located between the polarizing layer and the substrate.

[0015] The orthographic projection of the barrier structure onto the substrate covers the first overlapping region and / or the second overlapping region.

[0016] Optionally, the orthogonal projection of the barrier structure on the substrate covers the orthogonal projection of the first potential line on the substrate.

[0017] Optionally, the orthogonal projection of the barrier structure on the substrate covers the orthogonal projection of the second potential line on the substrate.

[0018] Optionally, the orthographic projection of the barrier structure on the substrate covers the orthographic projection of the first signal line on the substrate.

[0019] Optionally, the orthographic projection of the barrier structure on the substrate at least partially overlaps with the orthographic projection of the edge of the polarizing layer near the first potential line on the substrate.

[0020] Optionally, the array film layer includes a first circuit, the first circuit including a first potential line and a second potential line; the orthographic projection of the barrier structure on the substrate covers the orthographic projection of the first circuit on the substrate.

[0021] In one embodiment, the barrier structure is made of inorganic materials.

[0022] Alternatively, the barrier structure may be made of metal.

[0023] Optionally, the barrier structure can be connected to a fixed potential or the barrier structure can be in a floating state.

[0024] Optionally, the barrier structure includes at least one inorganic membrane layer.

[0025] Optionally, the barrier structure includes a first inorganic film layer and a second inorganic film layer, wherein the second inorganic film layer is disposed on the side of the first inorganic film layer away from the substrate; the first inorganic film layer is made of an inorganic metal material, and the second inorganic film layer is made of an inorganic insulating material.

[0026] In one embodiment, the display panel further includes a touch layer group disposed between the array film layer and the polarizing layer; the barrier structure includes at least one film layer, and the at least one film layer of the barrier structure is disposed in the same layer as the at least one film layer of the touch layer group.

[0027] Optionally, in the thickness direction of the substrate, the touch layer group includes a first touch conductive layer, a first insulating layer and a second touch conductive layer stacked together; the barrier structure includes a first inorganic film layer, which is disposed in the same layer and with the same material as the first touch conductive layer.

[0028] Optionally, the first inorganic film layer is connected to the first touch conductive layer.

[0029] Optionally, the touch layer group further includes a second insulating layer and a third insulating layer, wherein the second insulating layer, the first touch conductive layer, the first insulating layer, the second touch conductive layer and the third insulating layer are stacked sequentially in a direction away from the substrate; the barrier structure includes a second inorganic film layer, wherein the second inorganic film layer is disposed in the same layer as the second insulating layer, the first insulating layer or the third insulating layer.

[0030] In one embodiment, the array film layer includes a first conductive layer, a fourth insulating layer, a second conductive layer, a fifth insulating layer, and a third conductive layer stacked along a direction away from the substrate; the number of first signal lines is multiple, and the first potential line and the second potential line are located in the third conductive layer.

[0031] A portion of the first signal line is located in the first conductive layer, and another portion of the first signal line is located in the second conductive layer; or, the first signal line is located in either the first conductive layer or the second conductive layer.

[0032] Optionally, the array film layer further includes a planarization layer disposed on the side of the third conductive layer away from the substrate, the planarization layer being in contact with the third conductive layer.

[0033] In one embodiment, the first potential line and / or the second potential line extend along a first direction; the first direction is perpendicular to the thickness direction of the substrate.

[0034] Optionally, at least a portion of the first signal line extends along a second direction; the second direction is perpendicular to the thickness direction of the substrate and intersects with the first direction.

[0035] Optionally, at least one of the first potential line, the second potential line, and the first signal line includes the element molybdenum.

[0036] In one embodiment, the display panel has a display area and a border area adjacent to the display area; a first potential line, a second potential line and at least a portion of the first signal line are located in the border area, and at least a portion of the polarizing layer is located in the display area.

[0037] Optionally, the display panel also includes a curing adhesive layer, which is disposed on the side of the array film layer away from the substrate and located in the bezel area; a gap is provided between the polarizing layer and the curing adhesive layer on the side edge of the polarizing layer near the curing adhesive layer.

[0038] Optionally, in the second direction or the first direction, the first potential line, the second potential line, and at least a portion of the first signal line are located on at least one side of the display area; the first direction and the second direction intersect, and both the first direction and the second direction are perpendicular to the thickness direction of the substrate.

[0039] Optionally, the display panel further includes a light-emitting device layer disposed between the array film layer and the polarizing layer, and located in the display area.

[0040] In one embodiment, the array film layer includes a first circuit, which includes a first potential line and a second potential line; the first signal line is a source signal line for transmitting data voltage, and the first circuit is an anti-static circuit.

[0041] Optionally, the first circuit includes: a first transistor, a second transistor, a third transistor, and a fourth transistor.

[0042] The first transistor has its first electrode and control electrode connected to the first potential line.

[0043] The second transistor has its first terminal and control terminal connected to the second terminal of the first transistor.

[0044] The third transistor has its first terminal and control terminal connected to the second terminal of the second transistor and connected to the first signal line.

[0045] The fourth transistor has its first terminal and control terminal connected to the second terminal of the third transistor, and the second terminal of the fourth transistor is connected to the second potential line.

[0046] Secondly, embodiments of this application provide another display panel, including: a substrate, an array film layer, and a polarizing layer.

[0047] An array film layer is disposed on one side of a substrate; the array film layer includes a first potential line, a second potential line and at least one first signal line; the first potential line and the second potential line are disposed in a different layer from the first signal line, and the orthogonal projections of the first potential line and the second potential line on the substrate are spaced apart.

[0048] A polarizing layer is disposed on the side of the array film layer away from the substrate.

[0049] In this configuration, at least one first signal line has a first overlapping region with the orthogonal projection of a first potential line on the substrate, and a second overlapping region with the orthogonal projection of a second potential line on the substrate; the orthogonal projection of the polarizing layer on the substrate is the first orthogonal projection; the orthogonal projections of the first and second potential lines on the substrate are spaced apart from the first orthogonal projection; the potassium ion distribution density on the surface of the first signal line away from the substrate is greater than or equal to 0 and less than or equal to 10. -2 mol / (μm) 2 .

[0050] The aforementioned display panel achieves a potassium ion distribution density in the surface of the first signal line away from the substrate that is greater than or equal to 0 and less than or equal to 10. 2 mol / (μm) 2 This reduces the electrochemical corrosion caused by potassium ions in the overlapping areas of the first signal line and the first potential line, as well as the overlapping areas of the first signal line and the second potential line, thereby improving the problem of display panel being prone to display abnormalities.

[0051] In one embodiment, the absolute value of the potential difference between the first potential line and the first signal line is less than the absolute value of the potential difference between the second potential line and the first signal line; the distance between the first overlapping region and the first orthographic projection is less than the distance between the second overlapping region and the first orthographic projection.

[0052] Optionally, the orthographic projection of the first potential line is located between the orthographic projection of the second potential line and the first orthographic projection.

[0053] In one embodiment, the display panel further includes a barrier structure. In the thickness direction of the substrate, the barrier structure is disposed on the side of the first potential line, the second potential line, and the first signal line away from the substrate, and the film layer in which the barrier structure is located is located between the polarizing layer and the substrate. The material of the barrier structure includes inorganic materials.

[0054] The orthographic projection of the barrier structure onto the substrate covers the first overlapping region and / or the second overlapping region.

[0055] Optionally, the orthogonal projection of the barrier structure on the substrate covers the orthogonal projection of the first potential line on the substrate.

[0056] Optionally, the orthogonal projection of the barrier structure on the substrate covers the orthogonal projection of the second potential line on the substrate.

[0057] Optionally, the orthographic projection of the barrier structure on the substrate covers the orthographic projection of the first signal line on the substrate.

[0058] In one embodiment, the display panel further includes a touch layer group disposed between the array film layer and the polarizing layer; the barrier structure includes at least one film layer, and the at least one film layer of the barrier structure is disposed in the same layer as the at least one film layer of the touch layer group.

[0059] Optionally, the touch layer group includes a first touch conductive layer, a first insulating layer and a second touch conductive layer stacked together; the barrier structure includes a first inorganic film layer, which is disposed in the same layer and made of the same material as the first touch conductive layer.

[0060] Optionally, the first inorganic film layer is connected to the first touch conductive layer.

[0061] Optionally, the touch layer group further includes a second insulating layer and a third insulating layer, wherein the second insulating layer, the first touch conductive layer, the first insulating layer, the second touch conductive layer and the third insulating layer are stacked sequentially in a direction away from the substrate; the barrier structure includes a second inorganic film layer, wherein the second inorganic film layer and the third insulating layer are disposed in the same layer.

[0062] In one embodiment, the display panel has a display area and a border area adjacent to the display area; a first potential line, a second potential line and at least a portion of the first signal line are located in the border area, and at least a portion of the polarizing layer is located in the display area.

[0063] Optionally, the display panel also includes a curing adhesive layer, which is disposed on the side of the array film layer away from the substrate and located in the bezel area; a gap is provided between the polarizing layer and the curing adhesive layer on the side edge of the polarizing layer near the curing adhesive layer.

[0064] Optionally, in the second direction or the first direction, the first potential line, the second potential line, and at least a portion of the first signal line are located on at least one side of the display area; the first direction and the second direction intersect, and both the first direction and the second direction are perpendicular to the thickness direction of the substrate.

[0065] Optionally, the display panel further includes a light-emitting device layer disposed between the array film layer and the polarizing layer, and located in the display area.

[0066] In one embodiment, the potentials of both the first potential line and the second potential line are greater than 0 or less than 0.

[0067] Optionally, the potentials of the first potential line, the second potential line, and the first signal line are all greater than 0 or less than 0.

[0068] Optionally, the first potential line is a power supply line, the second potential line is a high potential line of the anti-static circuit, and the first signal line is a source signal line used to transmit data voltage.

[0069] In one embodiment, the potential of the first potential line and the potential of the first signal line are both greater than 0, and the potential of the second potential line is less than 0; or, the potential of the first potential line and the potential of the first signal line are both less than 0, and the potential of the second potential line is greater than 0; the distance between the first overlapping region and the first orthographic projection is less than the distance between the second overlapping region and the first orthographic projection.

[0070] Optionally, the array film layer includes a first circuit, which includes a first potential line and a second potential line; the first signal line is a source signal line for transmitting data voltage, and the first circuit is an anti-static circuit.

[0071] In one embodiment, the potential of the first potential line and the potential of the first signal line are both greater than the potential of the second potential line, or the potential of the first potential line and the potential of the first signal line are both less than the potential of the second potential line; the distance between the first overlapping region and the first orthographic projection is less than the distance between the second overlapping region and the first orthographic projection.

[0072] In one embodiment, the first potential line and / or the second potential line extend along a first direction; the first direction is perpendicular to the thickness direction of the substrate.

[0073] Optionally, at least a portion of the first signal line extends along a second direction; the second direction is perpendicular to the thickness direction of the substrate and intersects with the first direction.

[0074] Optionally, at least one of the first potential line, the second potential line, and the first signal line includes the element molybdenum.

[0075] Thirdly, embodiments of this application also provide a display panel, including: a substrate, an array film layer, a polarizing layer, and a barrier structure.

[0076] An array film layer is disposed on one side of the substrate; the array film layer includes a second potential line and at least one first signal line; the second potential line and the first signal line are disposed in different layers; the potential of the first signal line is greater than 0, and the potential of the second potential line is less than 0; or, the potential of the first signal line is less than 0, and the potential of the second potential line is greater than 0; the orthographic projection of the first signal line on the substrate and the orthographic projection of the second potential line on the substrate have a second overlapping area.

[0077] A polarizing layer is disposed on the side of the array film layer away from the substrate; the orthographic projection of the polarizing layer on the substrate is a first orthographic projection, and the orthographic projection of the second potential line on the substrate is spaced apart from the first orthographic projection.

[0078] A barrier structure is provided on the side of the second potential line and the first signal line away from the substrate in the thickness direction of the substrate, and the film layer in which the barrier structure is located is located between the polarizing layer and the substrate; the material of the barrier structure includes inorganic materials; the orthographic projection of the barrier structure on the substrate covers the second overlapping area.

[0079] The display panel provided in this application embodiment, by setting an inorganic material barrier structure and covering the second overlapping region, can block the migration of ions in the polarizing layer to the second overlapping region, reduce the risk of electrochemical corrosion in the second overlapping region, and improve the problem of display abnormalities that are prone to occur in the display panel.

[0080] In one embodiment, the display panel further includes a touch layer group disposed between the array film layer and the polarizing layer; the barrier structure includes at least one film layer, and the at least one film layer of the barrier structure is disposed in the same layer as the at least one film layer of the touch layer group.

[0081] Optionally, the touch layer group includes a first touch conductive layer, a first insulating layer and a second touch conductive layer stacked together; the barrier structure includes a first inorganic film layer, which is disposed in the same layer and made of the same material as the first touch conductive layer.

[0082] Optionally, the first inorganic film layer is connected to the first touch conductive layer.

[0083] Optionally, the touch layer group further includes a second insulating layer and a third insulating layer, wherein the second insulating layer, the first touch conductive layer, the first insulating layer, the second touch conductive layer and the third insulating layer are stacked sequentially in a direction away from the substrate; the barrier structure includes a second inorganic film layer, wherein the second inorganic film layer is disposed in the same layer as the second insulating layer, the first insulating layer or the third insulating layer.

[0084] Optionally, the array film layer includes a first potential line, wherein when the potential of the second potential line is greater than 0, the potential of the first potential line is less than 0; and when the potential of the second potential line is less than 0, the potential of the first potential line is greater than 0. The first potential line and the first signal line are disposed in different layers, and the orthographic projections of the first potential line and the second potential line on the substrate are spaced apart. The orthographic projections of the first signal line on the substrate and the first potential line on the substrate have a first overlapping area. The orthographic projections of the first potential line on the substrate are spaced apart from the first orthographic projection. The barrier structure is disposed on the side of the first potential line away from the substrate. The orthographic projection of the barrier structure on the substrate covers the first overlapping area.

[0085] Fourthly, embodiments of this application provide a display panel, including: a substrate, an array film layer, and a polarizing layer.

[0086] An array film layer is disposed on one side of a substrate; the array film layer includes a first potential line, a second potential line, and at least one first signal line; the first potential line and the second potential line are both disposed in a different layer from the first signal line, and the orthogonal projections of the first potential line and the second potential line on the substrate are spaced apart; the potential of the first potential line and the potential of the first signal line are both greater than the potential of the second potential line, or the potential of the first potential line and the potential of the first signal line are both less than the potential of the second potential line.

[0087] A polarizing layer is disposed on the side of the array film layer away from the substrate.

[0088] In this configuration, at least one first signal line has a first overlapping region with the first potential line on the substrate, and a second overlapping region with the second potential line on the substrate. The polarizing layer has a first positive projection on the substrate. The positive projections of the first and second potential lines on the substrate are spaced apart from the first positive projection. The distance between the first overlapping region and the first positive projection is less than the distance between the second overlapping region and the first positive projection.

[0089] In the aforementioned display panel, the second potential line and the first signal line have a certain potential difference. By adjusting the positions of the first potential line and the second potential line, the distance between the second overlapping area and the first orthographic projection of the polarizing layer is made greater than the distance between the first overlapping area and the first orthographic projection of the polarizing layer. In this way, the distance between the area with the potential difference and the polarizing layer is greater, which prolongs the migration path of ions in the polarizing layer and makes it less likely for ions in the polarizing layer to migrate to the area with the potential difference. This reduces the risk of electrochemical corrosion in the area with the potential difference, thereby improving the problem of display abnormalities that are prone to occur in the display panel.

[0090] Fifthly, embodiments of this application provide a display device including the display panel described in any of the above embodiments. The above-described display device can improve the problem of display panel being prone to display abnormalities. Attached Figure Description

[0091] To more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of this application, the drawings used in the description of the embodiments or exemplary embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0092] Figure 1 is a partial planar schematic diagram of a display panel provided in an embodiment of this application.

[0093] Figure 2 is a schematic diagram of a cross-sectional structure of the display panel shown in Figure 1.

[0094] Figure 3 is a schematic diagram of another cross-sectional structure of the display panel shown in Figure 1.

[0095] Figure 4 is a schematic diagram of another cross-sectional structure of the display panel shown in Figure 1.

[0096] Figure 5 is a schematic diagram of the film layer structure of the touch module of the display panel shown in Figure 1.

[0097] Figure 6 is a schematic diagram of another cross-sectional structure of the display panel shown in Figure 1.

[0098] Figure 7 is a schematic diagram of one structure of the display panel shown in Figure 1.

[0099] Figure 8 is a plan view of the first circuit and barrier structure of the display panel shown in Figure 7.

[0100] Figure 9 is an equivalent circuit diagram of the first potential line, second potential line, first transistor, second transistor, third transistor, fourth transistor and first signal line of the first circuit shown in Figure 7.

[0101] Figure 10 is a schematic diagram of the structure of a display device provided in an embodiment of this application.

[0102] Explanation of reference numerals in the attached drawings: 1. Display device; 10. Display panel; 10a. Display area; 10b. Bezel area; 11. Substrate; 12. Array film layer; 12a. First circuit; 12a1. First potential line; 12a2. Second potential line; 12a3. First transistor unit; 12a4. Second transistor unit; 12c. First signal line; 12d. Bonding pad; 121. First conductive layer; 122. Fourth insulating layer; 123. Second conductive layer; 124. Fifth insulating layer; 125. Third conductive layer; 126. Passivation layer; 127. 128. Planarization layer; 129. Semiconductor layer; 120. Sixth insulating layer; 13. Polarizing layer; 14. Barrier structure; 141. First inorganic film layer; 142. Second inorganic film layer; 15. Touch layer group; 151. First touch conductive layer; 152. First insulating layer; 153. Second touch conductive layer; 154. Second insulating layer; 155. Third insulating layer; 16. Light-emitting device layer; 17. Curing adhesive layer; 18. Pixel limiting layer; 19. Encapsulation layer; 110. Support pillar; 111. Flexible circuit board; 112. Chip. Detailed Implementation

[0103] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0104] It should be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, this does not indicate any order, quantity, or importance, but is merely used to distinguish different components. These terms are used only to distinguish one element from another. For example, without departing from the scope of this application, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element. Words such as “comprising” or “including” mean that the element or object preceding the word covers the element or object listed following the word and its equivalents, without excluding other elements or objects.

[0105] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0106] Organic Light Emitting Diode (OLED) display technology is considered the most promising next-generation flat panel display technology. Compared to LCD technology, OLED technology has advantages such as low energy consumption, low cost, self-emissive nature, wide viewing angle, and fast response time. However, in related OLED display technologies, OLED display panels have experienced display anomalies after reliability testing.

[0107] The inventors discovered through research that corrosion of the traces during reliability testing led to display abnormalities. Furthermore, abnormal elements (such as potassium ions) in the polarizer migrated to the vicinity of the traces, causing electrochemical corrosion under the influence of potential, resulting in abnormal display images.

[0108] In view of at least one of the above problems, embodiments of this application provide a display panel and a display device to improve the problem that display panels are prone to display abnormalities during reliability tests.

[0109] In a first aspect, referring to Figures 1 and 2, embodiments of this application provide a display panel 10, which may be an organic light-emitting diode (OLED) display or a quantum dot light-emitting diode (QLED) display.

[0110] In one embodiment, the display panel 10 includes a substrate 11, an array film layer 12, and a polarizing layer 13. The array film layer 12 is disposed on one side of the substrate 11. The array film layer 12 includes a first potential line 12a1, a second potential line 12a2, and a first signal line 12c. The first potential line 12a1 and the second potential line 12a2 are both disposed in a different layer from the first signal line 12c, and the orthographic projections of the first potential line 12a1 and the second potential line 12a2 on the substrate 11 are spaced apart; the potential of the first potential line 12a1 and the potential of the first signal line 12c are both greater than 0, and the potential of the second potential line 12a2 is less than 0. Alternatively, the potential of the first potential line 12a1 and the potential of the first signal line 12c are both less than 0, and the potential of the second potential line 12a2 is greater than 0; that is, the potential polarity of the first potential line 12a1 is the same as that of the first signal line 12c, the potential polarity of the first potential line 12a1 is opposite to that of the second potential line 12a2, and the potential polarity of the first signal line 12c is opposite to that of the second potential line 12a2. The polarizing layer 13 is disposed on the side of the array film layer 12 away from the substrate 11. Here, "the first potential line 12a1 and the second potential line 12a2 are both disposed in different layers from the first signal line 12c" means that the first potential line 12a1 and the first signal line 12c are located in different metal film layers (or conductive film layers), and the second potential line 12a2 and the first signal line 12c are located in different metal film layers (or conductive film layers). "The potential polarity of the first potential line 12a1 is the same as that of the first signal line 12c" means that the potentials of the first potential line 12a1 and the first signal line 12c are both positive or negative. "The potential polarity of the first potential line 12a1 is opposite to that of the second potential line 12a2" means that one of the first potential line 12a1 and the second potential line 12a2 has a positive potential, and the other has a negative potential. For example, the first potential line 12a1 and the second potential line 12a2 can be fixed potential lines, DC potential lines, or power supply lines.

[0111] In one embodiment, as shown in FIG1, at least one first signal line 12c has a first overlapping region J1 with the first potential line 12a1 on the substrate 11 and a second overlapping region J2 with the second potential line 12a2 on the substrate 11. The polarizing layer 13 has a first orthogonal projection on the substrate 11. The distance between the first overlapping region and the first orthogonal projection is less than the distance between the second overlapping region and the first orthogonal projection, that is, the distance between the first overlapping region and the first orthogonal projection is closer, and the distance between the second overlapping region and the first orthogonal projection is farther.

[0112] The inventors discovered through research that electrochemical corrosion is highly likely to occur in the area where positive and negative potential lines overlap, and the corrosion is quite severe. Therefore, the display panel 10 provided in this application adjusts the positions of the first potential line 12a1 and the second potential line 12a2 so that the distance between the overlapping area with opposite potential polarities (i.e., the second overlapping area) and the first positive projection of the polarizing layer 13 is greater than the distance between the overlapping area with the same potential polarities (i.e., the first overlapping area) and the first positive projection of the polarizing layer 13. In this way, the distance between the area where positive and negative potentials overlap and the polarizing layer 13 is greater, which prolongs the migration path of ions in the polarizing layer 13 and makes it less likely for ions in the polarizing layer 13 to migrate to the area where positive and negative potentials overlap. This reduces the risk of electrochemical corrosion in the area where positive and negative potentials overlap, thereby improving the problem of display abnormalities easily occurring in the reliability test of the display panel 10.

[0113] In one embodiment, the ions in the polarizing layer 13 may be potassium ions. During the migration of ions in the polarizing layer 13 toward the array film layer 12, they may migrate in an ionic state or by binding with other substances. For example, potassium ions in the polarizing layer 13 may bind with water and, with the help of water, migrate toward the traces (such as the first potential line 12a1, the second potential line 12a2, and the first signal line 12c) in the array film layer 12.

[0114] In one embodiment, the orthographic projection of the first potential line 12a1 is located between the orthographic projection of the second potential line 12a2 and the first orthographic projection. Thus, in a planar schematic diagram (or a top-down view), the first potential line 12a1 is located between the second potential line 12a2 and the polarizing layer 13. This increases the distance between the overlapping area of ​​the first signal line 12c and the second potential line 12a2 and the polarizing layer 13, making the area of ​​overlapping positive and negative potentials further away from the polarizing layer 13. This lengthens the migration path of ions in the polarizing layer 13, making it less likely for ions in the polarizing layer 13 to migrate to the area of ​​overlapping positive and negative potentials. This reduces the risk of electrochemical corrosion in the area of ​​overlapping positive and negative potentials, thereby improving the problem of display abnormalities easily occurring in the display panel 10 during reliability testing.

[0115] In another embodiment, a portion of the orthographic projection of the first potential line 12a1 is located between the orthographic projection of the second potential line 12a2 and the first orthographic projection.

[0116] In one embodiment, as shown in FIG1, the same first signal line 12c intersects with both the first potential line 12a1 and the second potential line 12a2.

[0117] In one embodiment, referring to FIG8, the display panel 10 further includes a bonding pad 12d, and the orthographic projection of the second potential line 12a2 is located between the orthographic projection of the first potential line 12a1 and the orthographic projection of the bonding pad 12d on the substrate 11. That is, in a planar schematic diagram (or a top view), the second potential line 12a2 is located between the first potential line 12a1 and the bonding pad 12d.

[0118] In one embodiment, referring to Figures 3 and 4, the display panel 10 further includes a barrier structure 14. In the thickness direction of the substrate 11, the barrier structure 14 is disposed on the side of the first potential line 12a1, the second potential line 12a2, and the first signal line 12c away from the substrate 11, and the film layer containing the barrier structure 14 is located between the polarizing layer 13 and the substrate 11. That is, in the thickness direction of the substrate 11, the barrier structure 14 is disposed on the side of the first potential line 12a1, the second potential line 12a2, and the first signal line 12c close to the polarizing layer 13. The barrier structure 14 is used to block ions in the polarizing layer 13 from migrating to the first potential line 12a1, the second potential line 12a2, or the first signal line 12c. Specifically, the orthographic projection of the barrier structure 14 on the substrate 11 covers the first overlapping region and / or the second overlapping region.

[0119] In one example, the orthogonal projection of the barrier structure 14 onto the substrate 11 covers the first overlapping region, thereby preventing the migration of ions from the polarizing layer 13 to the first overlapping region and preventing electrochemical corrosion from occurring in the first overlapping region.

[0120] In another example, the orthogonal projection of the barrier structure 14 onto the substrate 11 covers the second overlapping region, thereby preventing the migration of ions from the polarizing layer 13 to the second overlapping region and preventing electrochemical corrosion from occurring in the second overlapping region.

[0121] In another example, the orthographic projection of the barrier structure 14 onto the substrate 11 covers the first and second overlapping regions. This prevents ions from the polarizing layer 13 from migrating to the first and second overlapping regions, thus preventing electrochemical corrosion at those regions.

[0122] In one embodiment, the orthogonal projection of the barrier structure 14 onto the substrate 11 overlaps the orthogonal projection of the first potential line 12a1 onto the substrate 11. This prevents ions in the polarizing layer 13 from migrating toward the first potential line 12a1, thus preventing corrosion of the first potential line 12a1.

[0123] In one embodiment, the orthogonal projection of the barrier structure 14 onto the substrate 11 overlaps the orthogonal projection of the second potential line 12a2 onto the substrate 11. This prevents ions in the polarizing layer 13 from migrating toward the second potential line 12a2, thus preventing corrosion of the first potential line 12a1.

[0124] In one embodiment, the orthogonal projection of the barrier structure 14 onto the substrate 11 overlaps the orthogonal projection of the first signal line 12c onto the substrate 11. This prevents ions in the polarizing layer 13 from migrating toward the second potential line 12a2, thus preventing corrosion of the first signal line 12c.

[0125] In one embodiment, the orthographic projection of the barrier structure 14 on the substrate 11 at least partially overlaps with the orthographic projection of the edge of the polarizing layer 13 near the first potential line 12a1 on the substrate 11. This allows for a larger blocking area of ​​the barrier structure 14, maximizing its blocking performance and further preventing electrochemical corrosion at the first and second overlapping regions.

[0126] In one embodiment, the array film layer 12 includes a first circuit 12a, which includes a first potential line 12a1 and a second potential line 12a2; the orthogonal projection of the barrier structure 14 on the substrate 11 covers the orthogonal projection of the first circuit 12a on the substrate 11. This blocks ions in the polarizing layer 13 from migrating toward the first circuit 12a, preventing corrosion of the first circuit 12a.

[0127] In one embodiment, the barrier structure 14 is made of an inorganic material. This allows the barrier structure 14 to have excellent blocking properties, making it difficult for corrosive ions to pass through, thereby interrupting the migration path of the corrosive ions.

[0128] In one embodiment, the barrier structure 14 is made of a metallic material. This allows the barrier structure 14 to have excellent blocking properties, making it difficult for corrosive ions to pass through, thereby interrupting the migration path of the corrosive ions.

[0129] In one embodiment, the blocking structure 14 is connected to a fixed potential. This allows the blocking structure 14 to possess a certain shielding performance, effectively blocking interference signals and reducing their impact on the first potential line 12a1, the second potential line 12a2, and the first signal line 12c. It should be noted that the blocking structure 14 can be connected to a positive or negative potential. Preferably, the blocking structure 14 is connected to a negative potential (such as a cathode potential), which provides a better shielding effect.

[0130] In one embodiment, the barrier structure 14 is in a floating state. That is, the barrier structure 14 is electrically connected to any potential.

[0131] In one embodiment, the barrier structure 14 includes at least one inorganic film layer. This allows the barrier structure 14 to possess excellent blocking properties, making it difficult for corrosive ions to pass through, thereby interrupting the migration path of the corrosive ions.

[0132] In one embodiment, the barrier structure 14 includes a first inorganic film layer 141 and a second inorganic film layer 142. The second inorganic film layer 142 is disposed on the side of the first inorganic film layer 141 away from the substrate 11 (i.e., the side close to the polarizing layer 13). The first inorganic film layer 141 is made of an inorganic metal material, and the second inorganic film layer 142 is made of an inorganic insulating material. Thus, on the one hand, by setting multiple inorganic film layers, the barrier performance of the barrier structure 14 can be further improved; on the other hand, the second inorganic film layer 142 can protect the first inorganic film layer 141, preventing corrosion ions from corroding the first inorganic film layer 141, thereby ensuring the structural integrity of the first inorganic film layer 141 and giving the first inorganic film layer 141 better barrier performance.

[0133] In one embodiment, referring to Figures 3 and 4, the display panel 10 further includes a touch layer group 15 disposed between the array film layer 12 and the polarizing layer 13; the barrier structure 14 includes at least one film layer, and the at least one film layer of the barrier structure 14 is disposed in the same layer as the at least one film layer of the touch layer group 15. Thus, when fabricating the film layer of the touch layer group, a dummy pattern can be added above the traces (first potential line 12a1, second potential line 12a2, and first signal line 12c) using the mask of the touch layer group 15 to form the barrier structure 14, thereby achieving the purpose of isolating corrosive elements without increasing costs.

[0134] In one embodiment, referring to FIG5, the touch layer group 15 includes a first touch conductive layer 151, a first insulating layer 152, and a second touch conductive layer 153 stacked together. The barrier structure 14 includes a first inorganic film layer 141, which is disposed in the same layer and with the same material as the first touch conductive layer 151.

[0135] Thus, when fabricating the first touch conductive layer 151, a dummy trace (virtual trace) can be added above the traces (first potential line 12a1, second potential line 12a2 and first signal line 12c) to form a barrier structure 14, thereby achieving the purpose of isolating corrosive elements without increasing costs.

[0136] In one embodiment, the first inorganic film layer 141 may also be disposed in the same layer and with the same material as the first insulating layer 152 or the second touch conductive layer 153.

[0137] In one embodiment, the first inorganic film layer 141 is connected to the first touch conductive layer 151. This allows the barrier structure 14 to be connected to a fixed potential. Consequently, the barrier structure 14 possesses a certain shielding performance, effectively shielding interference signals and reducing their impact on the first potential line 12a1, the second potential line 12a2, and the first signal line 12c.

[0138] In one embodiment, as shown in FIG5, the touch layer group 15 further includes a second insulating layer 154 and a third insulating layer 155, wherein the second insulating layer 154, the first touch conductive layer 151, the first insulating layer 152, the second touch conductive layer 153, and the third insulating layer 155 are sequentially stacked along a direction away from the substrate 11. The barrier structure 14 includes a second inorganic film layer 142, which is disposed in the same layer as the second insulating layer 154, the first insulating layer 152, or the third insulating layer 155. In a preferred embodiment, the second inorganic film layer 142 is disposed in the same layer as the third insulating layer 155.

[0139] Thus, on the one hand, by setting multiple inorganic film layers, the barrier performance of the barrier structure 14 can be further improved; on the other hand, the second inorganic film layer 142 can protect the first inorganic film layer 141, preventing corrosion ions from corroding the first inorganic film layer 141, thereby ensuring the structural integrity of the first inorganic film layer 141 and giving the first inorganic film layer 141 better barrier performance.

[0140] In one embodiment, the second inorganic film layer 142 may be connected to the third insulating layer 155 to form an integral whole film layer.

[0141] In one embodiment, the transmitting electrode is disposed in one of the first touch conductive layer 151 and the second touch conductive layer 153, and the receiving electrode is disposed in the other of the first touch conductive layer 151 and the second touch conductive layer 153.

[0142] In one embodiment, the transmitting electrode and the receiving electrode are disposed in the second touch conductive layer 153, and the touch traces and electrode conductive bridges are disposed in the first touch conductive layer 151.

[0143] In one embodiment, the second touch conductive layer 153 can be made of a transparent conductive metal, such as ITO (indium tin oxide), AZO (aluminum-doped zinc oxide), GZO (gallium-doped zinc oxide), IGZO (indium gallium zinc oxide), etc. The first touch conductive layer 151 can be made of titanium, aluminum, molybdenum, etc.

[0144] In one embodiment, referring to FIG3, the array film layer 12 includes a first conductive layer 121, a fourth insulating layer 122, a second conductive layer 123, a fifth insulating layer 124, and a third conductive layer 125 stacked along a direction away from the substrate 11. There are multiple first signal lines 12c, and first potential lines 12a1 and second potential lines 12a2 are located in the third conductive layer 125.

[0145] A portion of the first signal line 12c is located in the first conductive layer 121, and another portion of the first signal line 12c is located in the second conductive layer 123. Alternatively, the first signal line 12c is located in either the first conductive layer 121 or the second conductive layer 123.

[0146] In one embodiment, the array film layer 12 further includes a planarization layer 127 disposed on the side of the third conductive layer 125 away from the substrate 11, and the planarization layer 127 is in contact with the third conductive layer 125. Thus, compared to related technologies, the passivation layer 126 between the third conductive layer 125 and the planarization layer 127 is effectively eliminated, thereby reducing the film layer structure in the array film layer 12, lowering manufacturing costs, and reducing the thickness of the display panel 10.

[0147] Referring to Figures 3 or 4, by making the barrier structure 14 and the film layer in the touch layer group 15 co-layered, it is equivalent to placing the barrier structure 14 on the side of the planarization layer 127 away from the substrate 11. In this way, it is possible to prevent the planarization layer 127 from absorbing too much moisture, thereby improving the reliability of the display panel 10.

[0148] In one embodiment, the array film layer 12 further includes a semiconductor layer 128 and a sixth insulating layer 129 stacked on one side of the substrate 11. The first conductive layer 121 is located on the side of the sixth insulating layer 129 away from the substrate 11.

[0149] In one embodiment, referring to FIG6, the array film layer 12 includes a passivation layer 126, and the barrier structure 14 is disposed in the same layer and with the same material as the passivation layer 126. Thus, the barrier structure 14 and the passivation layer 126 are fabricated simultaneously in the same manufacturing process, thereby achieving the purpose of isolating corrosive elements without increasing costs.

[0150] In one embodiment, as shown in FIG6, the array film layer 12 includes a first conductive layer 121, a fourth insulating layer 122, a second conductive layer 123, a fifth insulating layer 124, a third conductive layer 125, and a planarization layer 127 stacked along the direction away from the substrate 11. A passivation layer 126 is disposed between the third conductive layer 125 and the planarization layer 127. There are multiple first signal lines 12c, a portion of which are located in the first conductive layer 121, and another portion of which are located in the second conductive layer 123. The first potential line 12a1 and the second potential line 12a2 are located in the third conductive layer 125.

[0151] In one embodiment, the first potential line 12a1 and / or the second potential line 12a2 extend along a first direction X; the first direction X is perpendicular to the thickness direction of the substrate 11.

[0152] In one embodiment, at least a portion of the first signal line 12c extends along a second direction Y; the second direction Y is perpendicular to the thickness direction of the substrate 11 and intersects with the first direction X.

[0153] In one embodiment, the first direction X is perpendicular to the second direction Y.

[0154] In one embodiment, at least one of the first potential line 12a1, the second potential line 12a2, and the first signal line 12c includes element molybdenum. It is understood that element molybdenum and potassium ions are prone to electrochemical corrosion.

[0155] In one embodiment, referring to FIG7, the display panel 10 has a display area 10a and a border area 10b adjacent to the display area 10a; a first potential line 12a1, a second potential line 12a2 and at least a portion of the first signal line 12c are located in the border area 10b, and at least a portion of the polarizing layer 13 is located in the display area 10a.

[0156] Thus, in this embodiment, the wiring position of the frame area 10b is adjusted so that the distance between the overlapping area with opposite potential polarity (i.e., the second overlapping area) and the first orthogonal projection of the polarizing layer 13 is greater than the distance between the overlapping area with the same potential polarity (i.e., the first overlapping area) and the first orthogonal projection of the polarizing layer 13. In this way, the distance between the area with overlapping positive and negative potentials and the polarizing layer 13 is greater, which prolongs the migration path of ions in the polarizing layer 13 and makes it less likely for ions in the polarizing layer 13 to migrate to the area with overlapping positive and negative potentials. This reduces the risk of electrochemical corrosion in the area with overlapping positive and negative potentials, thereby improving the problem of display abnormalities that are prone to occur in the reliability test of the display panel 10.

[0157] In one embodiment, the array film layer 12 includes a first circuit 12a, which includes a first potential line 12a1 and a second potential line 12a2; a first signal line 12c is a source signal line for transmitting data voltage, and the first circuit 12a is an anti-static circuit. Specifically, the potential of the first signal line 12c is positive, the potential of the first potential line 12a1 is positive, and the potential of the second potential line 12a2 is negative.

[0158] In one embodiment, as shown in FIG8, the first circuit 12a is an anti-static circuit, a plurality of first transistor units 12a3 are connected to the first potential line 12a1, and a plurality of second transistor units 12a4 are connected to the second potential line 12a2; the array film layer 12 includes a plurality of first signal lines 12c, each of the first signal lines 12c being electrically connected to a first transistor unit 12a3 and a second transistor unit 12a4.

[0159] Specifically, each first transistor unit 12a3 may include multiple first transistors. Each second transistor unit 12a4 may include multiple second transistors. When static electricity on the source signal line of the anti-static circuit causes an excessively high voltage, the transistor connected to the first potential line 12a1 is turned on to release the static electricity; when static electricity on the source signal line causes an excessively low voltage, the transistor connected to the second potential line 12a2 is turned on to release the static electricity.

[0160] Specifically, as shown in Figure 9, the first circuit 12a includes: a first transistor T1, a second transistor T2, a third transistor T3, and a fourth transistor T4. That is, the first transistor unit 12a3 includes the first transistor T1 and the second transistor T2, and the second transistor unit 12a4 includes the third transistor T3 and the fourth transistor T4.

[0161] The first terminal and control terminal of the first transistor T1 are connected to the first potential line 12a1; the first terminal and control terminal of the second transistor T2 are connected to the second terminal of the first transistor T1; the first terminal and control terminal of the third transistor T3 are connected to the second terminal of the second transistor T2, and are also connected to the first signal line 12c; the first terminal and control terminal of the fourth transistor T4 are connected to the second terminal of the third transistor T3, and the second terminal of the fourth transistor T4 is connected to the second potential line 12a2. In Figure 9, VGH represents the first potential line 12a1, VGL represents the second potential line 12a2, and SOURCE represents the first signal line 12c.

[0162] Furthermore, the array film layer 12 also includes a plurality of bonding pads 12d, wherein a portion of the bonding pads 12d are connected one-to-one with the first signal line 12c. Further still, the display panel 10 also includes a flexible circuit board 111 and a chip 112, with the chip 112 bonded to the flexible circuit board 111, and the bonding pads 12d used for bonding and connecting to the flexible circuit board 111.

[0163] In one embodiment, the first transistor T1, the second transistor T2, the third transistor T3, and the fourth transistor T4 are all P-type transistors.

[0164] In one embodiment, the first potential line 12a1 is a high potential line (VGH) for the anti-static circuit, and the second potential line 12a2 is an ELVSS signal line electrically connected to the cathode of the light-emitting device; the first signal line 12c is a source signal line for transmitting data voltage, electrically connected to the data line of the display area, and electrically connected to the pixel circuit. In another embodiment, the first potential line 12a1 can also be electrically connected to the gate driving circuit and is a high potential line (VGH).

[0165] In one embodiment, the first potential line 12a1 is a power supply line (ELVDD), the second potential line 12a2 is an ELVSS signal line, and the first signal line 12c is a source signal line for transmitting data voltage. The power supply line (ELVDD) is electrically connected to the pixel circuit, and the pixel circuit is electrically connected to the anode of the light-emitting device.

[0166] In one embodiment, the first potential line 12a1 is a power supply line (ELVDD), the second potential line 12a2 is a low potential line (VGL) of the anti-static circuit, and the first signal line 12c is a source signal line for transmitting data voltage. In another embodiment, the second potential line 12a2 can also be electrically connected to the gate drive circuit and is a low potential line (VGL).

[0167] In one embodiment, referring to Figures 4 and 6, the display panel 10 further includes a curing adhesive layer 17, which is disposed on the side of the array film layer 12 away from the substrate 11 and located in the border area 10b. Exemplarily, the material of the curing adhesive layer 17 is a UV adhesive.

[0168] Furthermore, as shown in Figure 4, a gap S is provided between the edge of the polarizing layer 13 near the cured adhesive layer 17 and the cured adhesive layer 17. It should be noted that during reliability testing, the polarizing layer 13 will shrink, thereby creating a gap between the polarizing layer 13 and the cured adhesive layer 17.

[0169] In one embodiment, in the second direction Y or the first direction X, the first potential line 12a1, the second potential line 12a2 and at least a portion of the first signal line 12c are located on at least one side of the display area 10a.

[0170] In one embodiment, referring to FIG6, the display panel 10 further includes a light-emitting device layer 16, which is disposed between the array film layer 12 and the polarizing layer 13 and located in the display area 10a. It is understood that the light-emitting device layer 16 may include a first light-emitting device, a second light-emitting device, and a third light-emitting device for emitting different colors. The array film layer 12 also includes pixel circuitry connected to the light-emitting devices for driving the light-emitting devices to emit light.

[0171] Furthermore, the display panel 10 also includes a pixel defining layer 18, which includes a pixel opening, and the light-emitting device in the light-emitting device layer 16 is disposed at the pixel opening.

[0172] Furthermore, a support post 110 is provided on the side of the pixel limiting layer 18 away from the substrate 11, and the support post 110 can be used to support the mask plate.

[0173] Furthermore, the display panel 10 also includes an encapsulation layer 19, which is disposed on the side of the light-emitting device layer 16 away from the substrate 11. It is understood that the encapsulation layer 19 may include two inorganic film layers and an organic film layer disposed between the two inorganic film layers.

[0174] Secondly, referring to FIG1, this application embodiment provides another display panel 10, which includes a substrate 11, an array film layer 12, and a polarizing layer 13. The array film layer 12 is disposed on one side of the substrate 11; the array film layer 12 includes a first potential line 12a1, a second potential line 12a2, and at least one first signal line 12c; the first potential line 12a1 and the second potential line 12a2 are both disposed in a different layer from the first signal line 12c, and the orthographic projections of the first potential line 12a1 and the second potential line 12a2 on the substrate 11 are spaced apart; the polarizing layer 13 is disposed on the side of the array film layer 12 away from the substrate 11. "The first potential line 12a1 and the second potential line 12a2 are both disposed in a different layer from the first signal line 12c" means that the first potential line 12a1 and the first signal line 12c are respectively located in different metal film layers (or conductive film layers), and the second potential line 12a2 and the first signal line 12c are respectively located in different metal film layers (or conductive film layers).

[0175] In one embodiment, the orthographic projection of at least one first signal line 12c on the substrate 11 has a first overlapping region J1 with the orthographic projection of the first potential line 12a1 on the substrate 11, and a second overlapping region J2 with the orthographic projection of the second potential line 12a2 on the substrate 11; the orthographic projection of the polarizing layer 13 on the substrate 11 is the first orthographic projection; the orthographic projections of the first potential line 12a1 and the second potential line 12a2 on the substrate 11 are spaced apart from the first orthographic projection; the potassium ion distribution density in the surface of the first signal line 12c on the side away from the substrate 11 is greater than or equal to 0 and less than or equal to 10. -2 mol / (μm) 2 .

[0176] The display panel 10 provided in this application embodiment has a potassium ion distribution density in the surface of the first signal line 12c away from the substrate 11 that is greater than or equal to 0 and less than or equal to 10. -2 mol / (μm) 2 In this way, the electrochemical corrosion of the overlapping areas of the first signal line 12c and the first potential line 12a1, as well as the overlapping areas of the first signal line 12c and the second potential line 12a2, by potassium ions can be reduced, thereby improving the problem of display abnormalities that easily occur in the display panel 10 during reliability tests.

[0177] In one embodiment, the absolute value of the potential difference between the first potential line 12a1 and the first signal line 12c is less than the absolute value of the potential difference between the second potential line 12a2 and the first signal line 12c. The distance between the first overlapping region and the first orthographic projection is less than the distance between the second overlapping region and the first orthographic projection; that is, the distance between the first overlapping region and the first orthographic projection is closer, and the distance between the second overlapping region and the first orthographic projection is farther.

[0178] Through research, the inventors discovered that corrosion is prone to occur at the intersections of traces located in different layers, especially when the potential difference between the two overlapping traces is greater, the corrosion is more severe. Therefore, the display panel 10 provided in this application adjusts the positions of the first potential line 12a1 and the second potential line 12a2 so that the distance between the overlapping area with a larger potential difference and the first orthographic projection of the polarizing layer 13 is greater than the distance between the overlapping area with a smaller potential difference and the first orthographic projection of the polarizing layer 13. In this way, the area with a larger potential difference is moved further away from the polarizing layer 13, extending the migration path of ions in the polarizing layer 13. This makes it less likely for ions in the polarizing layer 13 to migrate to the area with a larger potential difference, thereby reducing the risk of electrochemical corrosion in the area with a larger potential difference. This improves the problem of display abnormalities easily occurring in the display panel 10 during reliability testing.

[0179] In one embodiment, the ions in the polarizing layer 13 may be potassium ions. During the migration of ions in the polarizing layer 13 toward the array film layer 12, they may migrate in an ionic state or by binding with other substances. For example, potassium ions in the polarizing layer 13 may bind with water and, with the help of water, migrate toward the traces (such as the first potential line 12a1, the second potential line 12a2, and the first signal line 12c) in the array film layer 12.

[0180] In one embodiment, the orthographic projection of the first potential line 12a1 is located between the orthographic projection of the second potential line 12a2 and the first orthographic projection.

[0181] Thus, in a planar schematic diagram (or a top-down view), the first potential line 12a1 is located between the second potential line 12a2 and the polarizing layer 13. This increases the distance between the overlapping area of ​​the first signal line 12c and the second potential line 12a2 and the polarizing layer 13, making the overlapping area with a large potential difference further away from the polarizing layer 13. This lengthens the migration path of ions in the polarizing layer 13, making it less likely for ions in the polarizing layer 13 to migrate to the overlapping area with a large potential difference. This reduces the risk of electrochemical corrosion in the overlapping area with a large potential difference, thereby improving the problem of display abnormalities easily occurring in the display panel 10 during reliability testing.

[0182] In one embodiment, referring to Figures 3 and 4, the display panel 10 further includes a barrier structure 14. In the thickness direction of the substrate 11, the barrier structure 14 is disposed on the side of the first potential line 12a1, the second potential line 12a2, and the first signal line 12c away from the substrate 11, and the film layer containing the barrier structure 14 is located between the polarizing layer 13 and the substrate 11. That is, in the thickness direction of the substrate 11, the barrier structure 14 is disposed on the side of the first potential line 12a1, the second potential line 12a2, and the first signal line 12c close to the polarizing layer 13. The barrier structure 14 is used to block ions in the polarizing layer 13 from migrating to the first potential line 12a1, the second potential line 12a2, or the first signal line 12c. Specifically, the orthographic projection of the barrier structure 14 on the substrate 11 covers the first overlapping region and / or the second overlapping region.

[0183] In one example, the orthogonal projection of the barrier structure 14 onto the substrate 11 covers the first overlapping region, thereby preventing the migration of ions from the polarizing layer 13 to the first overlapping region and preventing electrochemical corrosion from occurring in the first overlapping region.

[0184] In another example, the orthogonal projection of the barrier structure 14 onto the substrate 11 covers the second overlapping region, thereby preventing the migration of ions from the polarizing layer 13 to the second overlapping region and preventing electrochemical corrosion from occurring in the second overlapping region.

[0185] In another example, the orthographic projection of the barrier structure 14 onto the substrate 11 covers the first and second overlapping regions. This prevents ions from the polarizing layer 13 from migrating to the first and second overlapping regions, thus preventing electrochemical corrosion at those regions.

[0186] In one embodiment, the orthogonal projection of the barrier structure 14 onto the substrate 11 overlaps the orthogonal projection of the first potential line 12a1 onto the substrate 11. This prevents ions in the polarizing layer 13 from migrating toward the first potential line 12a1, thus preventing corrosion of the first potential line 12a1.

[0187] In one embodiment, the orthogonal projection of the barrier structure 14 onto the substrate 11 overlaps the orthogonal projection of the second potential line 12a2 onto the substrate 11. This prevents ions in the polarizing layer 13 from migrating toward the second potential line 12a2, thus preventing corrosion of the first potential line 12a1.

[0188] In one embodiment, the orthogonal projection of the barrier structure 14 onto the substrate 11 overlaps the orthogonal projection of the first signal line 12c onto the substrate 11. This prevents ions in the polarizing layer 13 from migrating toward the second potential line 12a2, thus preventing corrosion of the first signal line 12c.

[0189] In one embodiment, the barrier structure 14 is made of an inorganic material. This allows the barrier structure 14 to have excellent blocking properties, making it difficult for corrosive ions to pass through, thereby interrupting the migration path of the corrosive ions.

[0190] In one embodiment, the barrier structure 14 is made of a metallic material. This allows the barrier structure 14 to have excellent blocking properties, making it difficult for corrosive ions to pass through, thereby interrupting the migration path of the corrosive ions.

[0191] In one embodiment, the blocking structure 14 is connected to a fixed potential. This allows the blocking structure 14 to have a certain shielding performance, effectively shielding interference signals and reducing their impact on the first potential line 12a1, the second potential line 12a2, and the first signal line 12c. It is understood that the blocking structure 14 may also be unconnected to a potential.

[0192] In one embodiment, the barrier structure 14 includes at least one inorganic film layer. This allows the barrier structure 14 to possess excellent blocking properties, making it difficult for corrosive ions to pass through, thereby interrupting the migration path of the corrosive ions.

[0193] In one embodiment, the barrier structure 14 includes a first inorganic film layer 141 and a second inorganic film layer 142. The second inorganic film layer 142 is disposed on the side of the first inorganic film layer 141 away from the substrate 11 (i.e., the side close to the polarizing layer 13). The first inorganic film layer 141 is made of an inorganic metal material, and the second inorganic film layer 142 is made of an inorganic insulating material. Thus, on the one hand, by setting multiple inorganic film layers, the barrier performance of the barrier structure 14 can be further improved; on the other hand, the second inorganic film layer 142 can protect the first inorganic film layer 141, preventing corrosion ions from corroding the first inorganic film layer 141, thereby ensuring the structural integrity of the first inorganic film layer 141 and giving the first inorganic film layer 141 better barrier performance.

[0194] In one embodiment, referring to Figures 3 and 4, the display panel 10 further includes a touch layer group 15 disposed between the array film layer 12 and the polarizing layer 13; the barrier structure 14 includes at least one film layer, and the at least one film layer of the barrier structure 14 is disposed in the same layer as the at least one film layer of the touch layer group 15. Thus, when fabricating the film layer of the touch layer group, a dummy pattern can be added above the traces (first potential line 12a1, second potential line 12a2, and first signal line 12c) using the mask of the touch layer group 15 to form the barrier structure 14, thereby achieving the purpose of isolating corrosive elements without increasing costs.

[0195] In one embodiment, the touch layer group 15 includes a first touch conductive layer 151, a first insulating layer 152 and a second touch conductive layer 153 stacked together; the barrier structure 14 includes a first inorganic film layer 141, which is disposed in the same layer and with the same material as the first touch conductive layer 151.

[0196] Thus, when fabricating the first touch conductive layer 151, a dummy trace (virtual trace) can be added above the traces (first potential line 12a1, second potential line 12a2 and first signal line 12c) to form a barrier structure 14, thereby achieving the purpose of isolating corrosive elements without increasing costs.

[0197] In one embodiment, the first inorganic film layer 141 may also be disposed in the same layer and with the same material as the first insulating layer 152 or the second touch conductive layer 153.

[0198] In one embodiment, the first inorganic film layer 141 is connected to the first touch conductive layer 151. This allows the barrier structure 14 to be connected to a fixed potential. Consequently, the barrier structure 14 possesses a certain shielding performance, effectively shielding interference signals and reducing their impact on the first potential line 12a1, the second potential line 12a2, and the first signal line 12c.

[0199] In one embodiment, the touch layer group 15 further includes a second insulating layer 154 and a third insulating layer 155, wherein the second insulating layer 154, the first touch conductive layer 151, the first insulating layer 152, the second touch conductive layer 153 and the third insulating layer 155 are stacked sequentially along the direction away from the substrate 11; the barrier structure 14 includes a second inorganic film layer 142, wherein the second inorganic film layer 142 and the third insulating layer 155 are disposed in the same layer.

[0200] Thus, on the one hand, by setting multiple inorganic film layers, the barrier performance of the barrier structure 14 can be further improved; on the other hand, the second inorganic film layer 142 can protect the first inorganic film layer 141, preventing corrosion ions from corroding the first inorganic film layer 141, thereby ensuring the structural integrity of the first inorganic film layer 141 and giving the first inorganic film layer 141 better barrier performance.

[0201] In one embodiment, the second inorganic film layer 142 may be connected to the third insulating layer 155 to form an integral whole film layer.

[0202] In one embodiment, the transmitting electrode is disposed in one of the first touch conductive layer 151 and the second touch conductive layer 153, and the receiving electrode is disposed in the other of the first touch conductive layer 151 and the second touch conductive layer 153.

[0203] In one embodiment, the transmitting electrode and the receiving electrode are disposed in the second touch conductive layer 153, and the touch traces and electrode conductive bridges are disposed in the first touch conductive layer 151.

[0204] In one embodiment, the second touch conductive layer 153 can be made of a transparent conductive metal, such as ITO (indium tin oxide), AZO (aluminum-doped zinc oxide), GZO (gallium-doped zinc oxide), IGZO (indium gallium zinc oxide), etc. The first touch conductive layer 151 can be made of titanium, aluminum, molybdenum, etc.

[0205] In one embodiment, as shown in FIG3, the array film layer 12 includes a first conductive layer 121, a fourth insulating layer 122, a second conductive layer 123, a fifth insulating layer 124, and a third conductive layer 125 stacked along the direction away from the substrate 11; there are multiple first signal lines 12c, a portion of which are located in the first conductive layer 121, another portion of which are located in the second conductive layer 123, and the first potential line 12a1 and the second potential line 12a2 are located in the third conductive layer 125.

[0206] In one embodiment, the array film layer 12 further includes a planarization layer 127 disposed on the side of the third conductive layer 125 away from the substrate 11, and the planarization layer 127 is in contact with the third conductive layer 125. Thus, compared to related technologies, the passivation layer 126 between the third conductive layer 125 and the planarization layer 127 is effectively eliminated, thereby reducing the film layer structure in the array film layer 12, lowering manufacturing costs, and reducing the thickness of the display panel 10.

[0207] In one embodiment, referring to FIG6, the array film layer 12 includes a passivation layer 126, and the barrier structure 14 is disposed in the same layer and with the same material as the passivation layer 126. Thus, the barrier structure 14 and the passivation layer 126 are fabricated simultaneously in the same manufacturing process, thereby achieving the purpose of isolating corrosive elements without increasing costs.

[0208] Further, as shown in FIG6, the array film layer 12 includes a first conductive layer 121, a fourth insulating layer 122, a second conductive layer 123, a fifth insulating layer 124, a third conductive layer 125, and a planarization layer 127 stacked along the direction away from the substrate 11, and a passivation layer 126 disposed between the third conductive layer 125 and the planarization layer 127; there are multiple first signal lines 12c, a portion of the first signal lines 12c are located in the first conductive layer 121, another portion of the first signal lines 12c are located in the second conductive layer 123, and the first potential line 12a1 and the second potential line 12a2 are located in the third conductive layer 125.

[0209] In one embodiment, referring to FIG7, the display panel 10 has a display area 10a and a border area 10b adjacent to the display area 10a; a first potential line 12a1, a second potential line 12a2 and at least a portion of the first signal line 12c are located in the border area 10b, and at least a portion of the polarizing layer 13 is located in the display area 10a.

[0210] Thus, in this embodiment, the wiring position of the frame area 10b is adjusted so that the distance between the overlapping area with a larger potential difference (i.e., the second overlapping area) and the first orthographic projection of the polarizing layer 13 is greater than the distance between the overlapping area with a smaller potential difference (i.e., the first overlapping area) and the first orthographic projection of the polarizing layer 13. In this way, the area with a larger potential difference can be further away from the polarizing layer 13, which prolongs the migration path of ions in the polarizing layer 13 and makes it less likely for ions in the polarizing layer 13 to migrate to the area with a larger potential difference. This reduces the risk of electrochemical corrosion in the area with a larger potential difference, thereby improving the problem of display abnormalities that are prone to occur in the reliability test of the display panel 10.

[0211] In one embodiment, the potentials of both the first potential line 12a1 and the second potential line 12a2 are greater than 0 or less than 0, that is, the potential polarities of the first potential line 12a1 and the second potential line 12a2 are the same. For example, the potentials of both the first potential line 12a1 and the second potential line 12a2 may be either both positive or both negative.

[0212] In one embodiment, the potentials of the first potential line 12a1, the second potential line 12a2, and the first signal line 12c are all greater than 0 or less than 0, that is, the polarities of the first potential line 12a1, the second potential line 12a2, and the first signal line 12c are the same. Exemplarily, the potentials of the first potential line 12a1, the second potential line 12a2, and the first signal line 12c are all positive potentials or all negative potentials.

[0213] In one embodiment, the first potential line 12a1 is a power supply line (ELVDD), the second potential line 12a2 is a high potential line (VGH) for the anti-static circuit, and the first signal line 12c is a source signal line for transmitting data voltage. Specifically, the voltage of the first potential line 12a1 is between 3V and 3.3V; for example, the voltage of the first potential line 12a1 can be 3V, 3.1V, 3.2V, 3.3V, etc. The voltage of the second potential line 12a2 is between 5V and 6V; for example, the voltage of the second potential line 12a2 can be 5V, 5.3V, 5.5V, 5.8V, 6V, etc. The voltage of the first signal line 12c is between 2V and 4.8V; for example, the voltage of the first signal line 12c can be 2V, 3V, 3.5V, 4V, 4.8V, etc.

[0214] In one embodiment, the potential of the first potential line 12a1 and the potential of the first signal line 12c are both greater than 0, and the potential of the second potential line 12a2 is less than 0; or, the potential of the first potential line 12a1 and the potential of the first signal line 12c are both less than 0, and the potential of the second potential line 12a2 is greater than 0; the distance between the first overlapping region and the first orthographic projection is less than the distance between the second overlapping region and the first orthographic projection.

[0215] Optionally, the array film layer 12 includes a first circuit 12a, the first circuit 12a includes a first potential line 12a1 and a second potential line 12a2; the first signal line 12c is a source signal line for transmitting data voltage, and the first circuit 12a is an anti-static circuit.

[0216] In one embodiment, the potential of the first potential line 12a1 and the potential of the first signal line 12c are both greater than the potential of the second potential line 12a2, or the potential of the first potential line 12a1 and the potential of the first signal line 12c are both less than the potential of the second potential line 12a2; the distance between the first overlapping region and the first orthographic projection is less than the distance between the second overlapping region and the first orthographic projection.

[0217] In one embodiment, the first potential line 12a1 and / or the second potential line 12a2 extend along a first direction; the first direction is perpendicular to the thickness direction of the substrate 11.

[0218] Optionally, at least a portion of the first signal line 12c extends along a second direction; the second direction is perpendicular to the thickness direction of the substrate 11 and intersects with the first direction.

[0219] Optionally, at least one of the first potential line 12a1, the second potential line 12a2, and the first signal line 12c includes the element molybdenum.

[0220] In one embodiment, referring to Figures 4 and 6, the display panel 10 further includes a cured adhesive layer 17, which is disposed on the side of the array film layer 12 away from the substrate 11 and located in the border area 10b. Exemplarily, the material of the cured adhesive layer 17 is a UV-curable adhesive. Further, as shown in Figure 4, a gap S is provided between the polarizing layer 13 and the cured adhesive layer 17 at the edge of the polarizing layer 13 near the edge of the cured adhesive layer 17. It should be noted that during reliability testing, the polarizing layer 13 may shrink, thereby creating a gap between the polarizing layer 13 and the cured adhesive layer 17.

[0221] In one embodiment, in the second direction or the first direction, the first potential line 12a1, the second potential line 12a2 and at least a portion of the first signal line 12c are located on at least one side of the display area 10a; the first direction and the second direction intersect, and both the first direction and the second direction are perpendicular to the thickness direction of the substrate 11.

[0222] In one embodiment, referring to FIG6, the display panel 10 further includes a light-emitting device layer 16, which is disposed between the array film layer 12 and the polarizing layer 13 and located in the display area 10a. It is understood that the light-emitting device layer 16 may include a first light-emitting device, a second light-emitting device, and a third light-emitting device for emitting different colors. The array film layer 12 also includes pixel circuitry connected to the light-emitting devices for driving the light-emitting devices to emit light.

[0223] Furthermore, the display panel 10 also includes a pixel defining layer 18, which includes a pixel opening, and the light-emitting device in the light-emitting device layer 16 is disposed at the pixel opening.

[0224] Furthermore, a support post 110 is provided on the side of the pixel limiting layer 18 away from the substrate 11, and the support post 110 can be used to support the mask plate.

[0225] Furthermore, the display panel 10 also includes an encapsulation layer 19, which is disposed on the side of the light-emitting device layer 16 away from the substrate 11. It is understood that the encapsulation layer 19 may include two inorganic film layers and an organic film layer disposed between the two inorganic film layers.

[0226] Thirdly, referring to Figures 1-9, this application embodiment also provides a display panel 10, which includes a substrate 11, an array film layer 12, a polarizing layer 13, and a barrier structure 14.

[0227] In one embodiment, an array film layer 12 is disposed on one side of a substrate 11. The array film layer 12 includes a second potential line 12a2 and at least one first signal line 12c. The second potential line 12a2 and the first signal line 12c are disposed in different layers, with the potential of the first signal line 12c being greater than 0 and the potential of the second potential line 12a2 being less than 0; or, the potential of the first signal line 12c being less than 0 and the potential of the second potential line 12a2 being greater than 0. The orthographic projection of the first signal line 12c onto the substrate 11 and the orthographic projection of the second potential line 12a2 onto the substrate 11 have a second overlapping region. A polarizing layer 13 is disposed on the side of the array film layer 12 away from the substrate 11. The orthographic projection of the polarizing layer 13 onto the substrate 11 is a first orthographic projection, and the orthographic projection of the second potential line 12a2 onto the substrate 11 is spaced apart from the first orthographic projection. In the thickness direction of the substrate 11, the barrier structure 14 is disposed on the side of the second potential line 12a2 and the first signal line 12c away from the substrate 11, and the film layer in which the barrier structure 14 is located is located between the polarizing layer 13 and the substrate 11. The material of the barrier structure 14 includes inorganic materials; the orthographic projection of the barrier structure 14 on the substrate 11 covers the second overlapping region.

[0228] The display panel 10 provided in this application embodiment, by setting an inorganic material barrier structure 14 and covering the second overlapping region, can block the migration of ions in the polarizing layer 13 to the second overlapping region, reduce the risk of electrochemical corrosion in the second overlapping region, and improve the problem of display abnormalities that the display panel 10 is prone to.

[0229] In one embodiment, the display panel 10 further includes a touch layer group 15 disposed between the array film layer 12 and the polarizing layer 13; the barrier structure 14 includes at least one film layer, and the at least one film layer of the barrier structure 14 is disposed in the same layer as the at least one film layer of the touch layer group 15.

[0230] In one embodiment, the touch layer group 15 includes a first touch conductive layer 151, a first insulating layer 152, and a second touch conductive layer 153 stacked together; the barrier structure 14 includes a first inorganic film layer 141, which is disposed in the same layer and with the same material as the first touch conductive layer 151. Thus, when fabricating the first touch conductive layer 151, a mask of the first touch conductive layer 151 can be used to add dummy traces (virtual traces) above the traces (first potential line 12a1, second potential line 12a2, and first signal line 12c) to form the barrier structure 14, thereby achieving the purpose of isolating corrosive elements without increasing costs.

[0231] In one embodiment, the first inorganic film layer 141 is connected to the first touch conductive layer 151. This allows the barrier structure 14 to be connected to a fixed potential. Consequently, the barrier structure 14 possesses a certain shielding performance, effectively shielding interference signals and reducing their impact on the first potential line 12a1, the second potential line 12a2, and the first signal line 12c.

[0232] In one embodiment, the touch layer group 15 further includes a second insulating layer 154 and a third insulating layer 155, wherein the second insulating layer 154, the first touch conductive layer 151, the first insulating layer 152, the second touch conductive layer 153, and the third insulating layer 155 are sequentially stacked along a direction away from the substrate 11; the barrier structure 14 includes a second inorganic film layer 142, which is disposed in the same layer as the second insulating layer 154, the first insulating layer 152, or the third insulating layer 155. In a preferred embodiment, the second inorganic film layer 142 is disposed in the same layer as the third insulating layer 155.

[0233] Thus, on the one hand, by setting multiple inorganic film layers, the barrier performance of the barrier structure 14 can be further improved; on the other hand, the second inorganic film layer 142 can protect the first inorganic film layer 141, preventing corrosion ions from corroding the first inorganic film layer 141, thereby ensuring the structural integrity of the first inorganic film layer 141 and giving the first inorganic film layer 141 better barrier performance.

[0234] In one embodiment, the second inorganic film layer 142 may be connected to the third insulating layer 155 to form an integral whole film layer.

[0235] In one embodiment, the array film layer 12 includes a first potential line 12a1. When the potential of the second potential line 12a2 is greater than 0, the potential of the first potential line 12a1 is less than 0; when the potential of the second potential line 12a2 is less than 0, the potential of the first potential line 12a1 is greater than 0. The first potential line 12a1 and the first signal line 12c are disposed in different layers, and the orthographic projections of the first potential line 12a1 and the second potential line 12a2 on the substrate 11 are spaced apart. The orthographic projection of the first signal line 12c on the substrate 11 and the orthographic projection of the first potential line 12a1 on the substrate 11 have a first overlapping region. The orthographic projection of the first potential line 12a1 on the substrate 11 is spaced apart from the first orthographic projection. A barrier structure 14 is disposed on the side of the first potential line 12a1 away from the substrate 11. The orthographic projection of the barrier structure 14 on the substrate 11 covers the first overlapping region.

[0236] In this way, ions in the polarizing layer 13 can be prevented from migrating to the first overlapping region, reducing the risk of electrochemical corrosion in the first overlapping region and improving the problem of display abnormalities that easily occur in the display panel 10 during reliability tests.

[0237] Fourthly, referring to Figures 1-9, an embodiment of this application provides a display panel 10, which includes a substrate 11, an array film layer 12, and a polarizing layer 13.

[0238] An array film layer 12 is disposed on one side of the substrate 11. The array film layer 12 includes a first potential line 12a1, a second potential line 12a2, and at least one first signal line 12c; the first potential line 12a1 and the second potential line 12a2 are both disposed in a different layer from the first signal line 12c, and the orthographic projections of the first potential line 12a1 and the second potential line 12a2 on the substrate 11 are spaced apart. The potential of the first potential line 12a1 and the potential of the first signal line 12c are both greater than the potential of the second potential line 12a2, or the potential of the first potential line 12a1 and the potential of the first signal line 12c are both less than the potential of the second potential line 12a2. A polarizing layer 13 is disposed on the side of the array film layer 12 away from the substrate 11.

[0239] In one embodiment, the orthographic projection of at least one first signal line 12c on the substrate 11 has a first overlapping region with the orthographic projection of a first potential line 12a1 on the substrate 11, and a second overlapping region with the orthographic projection of a second potential line 12a2 on the substrate 11. The orthographic projection of the polarizing layer 13 on the substrate 11 is the first orthographic projection. The orthographic projections of the first potential line 12a1 and the second potential line 12a2 on the substrate 11 are spaced apart from the first orthographic projection. The distance between the first overlapping region and the first orthographic projection is less than the distance between the second overlapping region and the first orthographic projection.

[0240] The aforementioned display panel 10 has a certain potential difference between the second potential line 12a2 and the first signal line 12c. By adjusting the positions of the first potential line 12a1 and the second potential line 12a2, the distance between the second overlapping region and the first orthogonal projection of the polarizing layer 13 is made greater than the distance between the first overlapping region and the first orthogonal projection of the polarizing layer 13. In this way, the distance between the region with the potential difference and the polarizing layer 13 is made greater, which prolongs the migration path of ions in the polarizing layer 13 and makes it less likely for ions in the polarizing layer 13 to migrate to the region with the potential difference. This reduces the risk of electrochemical corrosion in the region with the potential difference, thereby improving the problem of display abnormalities that are prone to occur in the reliability test of the display panel 10.

[0241] Fifthly, referring to FIG10, an embodiment of this application provides a display device 1, including a display panel 10 as described in either the first or second aspect embodiment.

[0242] The display device 1 can be a laptop computer, mobile phone, wireless device, personal digital assistant (PDA), handheld or portable computer, GPS receiver / navigator, camera, MP4 video player, camcorder, game console, watch, clock, calculator, TV monitor, flat panel display, computer monitor, car display (e.g., odometer display, etc.), navigator, cockpit controller and / or display, camera view display (e.g., display of a rearview camera in a vehicle), electronic photograph, electronic billboard or sign, projector, etc.

[0243] When using the terms “including,” “having,” and “comprising” as described herein, another component may be added unless explicitly qualifying terms such as “only,” “consisting of,” etc. are used. Unless otherwise stated, singular terms may include plural forms and should not be construed as having a quantity of one.

[0244] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0245] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A display panel, characterized in that, include: substrate; An array film layer is disposed on one side of the substrate; the array film layer includes a first potential line, a second potential line and at least one first signal line; the first potential line and the second potential line are disposed in a different layer from the first signal line, and the orthographic projections of the first potential line and the second potential line on the substrate are spaced apart; The potential of the first potential line and the potential of the first signal line are both greater than 0, and the potential of the second potential line is less than 0; or, the potential of the first potential line and the potential of the first signal line are both less than 0, and the potential of the second potential line is greater than 0. A polarizing layer is disposed on the side of the array film layer away from the substrate; Wherein, at least one of the first signal lines has a first overlapping region with the first potential line on the substrate and a second overlapping region with the second potential line on the substrate, the polarizing layer has a first positive projection on the substrate, and the positive projections of the first potential line and the second potential line on the substrate are spaced apart from the first positive projection; the distance between the first overlapping region and the first positive projection is less than the distance between the second overlapping region and the first positive projection.

2. The display panel according to claim 1, characterized in that, The orthographic projection of the first potential line is located between the orthographic projection of the second potential line and the first orthographic projection. Optionally, the same first signal line intersects with both the first potential line and the second potential line; Optionally, the display panel further includes bonding pads, wherein the orthographic projection of the second potential line is located between the orthographic projection of the first potential line and the orthographic projection of the bonding pad on the substrate.

3. The display panel according to claim 1 or 2, characterized in that, The display panel further includes a barrier structure. In the thickness direction of the substrate, the barrier structure is disposed on the side of the first potential line, the second potential line and the first signal line away from the substrate, and the film layer in which the barrier structure is located is located between the polarizing layer and the substrate. The orthogonal projection of the barrier structure onto the substrate covers at least one of the first overlapping region or the second overlapping region; Optionally, the orthographic projection of the barrier structure on the substrate covers the orthographic projection of the first potential line on the substrate; Optionally, the orthogonal projection of the barrier structure on the substrate covers the orthogonal projection of the second potential line on the substrate; Optionally, the orthographic projection of the barrier structure on the substrate covers the orthographic projection of the first signal line on the substrate; Optionally, the orthographic projection of the barrier structure on the substrate and the orthographic projection of the edge of the polarizing layer near the first potential line on the substrate at least partially overlap; Optionally, the array film layer includes a first circuit, which includes a first potential line and a second potential line; The orthogonal projection of the barrier structure on the substrate covers the orthogonal projection of the first circuit on the substrate.

4. The display panel according to claim 3, characterized in that, The barrier structure is made of inorganic materials; Optionally, the barrier structure is connected to a fixed potential or the barrier structure is in a floating state; Optionally, the barrier structure includes a first inorganic film layer and a second inorganic film layer, wherein the second inorganic film layer is disposed on the side of the first inorganic film layer away from the substrate; the first inorganic film layer is made of an inorganic metal material, and the second inorganic film layer is made of an inorganic insulating material.

5. The display panel according to claim 3 or 4, characterized in that, The display panel further includes a touch layer group disposed between the array film layer and the polarizing layer; the barrier structure includes at least one film layer, and the at least one film layer of the barrier structure is disposed in the same layer as the at least one film layer of the touch layer group; Optionally, in the thickness direction of the substrate, the touch layer group includes a first touch conductive layer, a first insulating layer and a second touch conductive layer stacked together; the barrier structure includes a first inorganic film layer, wherein the first inorganic film layer and the first touch conductive layer are disposed in the same layer and of the same material. Optionally, the touch layer group further includes a second insulating layer and a third insulating layer, wherein the second insulating layer, the first touch conductive layer, the first insulating layer, the second touch conductive layer and the third insulating layer are stacked sequentially in a direction away from the substrate; the barrier structure includes a second inorganic film layer, wherein the second inorganic film layer is disposed in the same layer as the second insulating layer, the first insulating layer or the third insulating layer.

6. The display panel according to any one of claims 1-5, characterized in that, The array film layer includes a first conductive layer, a fourth insulating layer, a second conductive layer, a fifth insulating layer, and a third conductive layer stacked along a direction away from the substrate; the number of the first signal lines is multiple, and the first potential lines and the second potential lines are located in the third conductive layer; A portion of the first signal line is located in the first conductive layer, and another portion of the first signal line is located in the second conductive layer; or, the first signal line is located in either the first conductive layer or the second conductive layer. Optionally, the array film layer further includes a planarization layer disposed on the side of the third conductive layer away from the substrate, the planarization layer being in contact with the third conductive layer.

7. The display panel according to any one of claims 1-6, characterized in that, At least one of the first potential line or the second potential line extends along a first direction; the first direction is perpendicular to the thickness direction of the substrate. Optionally, at least a portion of the first signal line extends along the second direction; The second direction is perpendicular to the thickness direction of the substrate and intersects with the first direction.

8. The display panel according to any one of claims 1-7, characterized in that, The display panel has a display area and a border area adjacent to the display area; the first potential line, the second potential line and at least a portion of the first signal line are located in the border area, and at least a portion of the polarizing layer is located in the display area; Optionally, the display panel further includes a curing adhesive layer, which is disposed on the side of the array film layer away from the substrate and located in the frame area; a gap is provided between the edge of the polarizing layer near the curing adhesive layer and the curing adhesive layer; Optionally, in the second direction or the first direction, the first potential line, the second potential line, and at least a portion of the first signal line are located on at least one side of the display area; the first direction and the second direction intersect, and both the first direction and the second direction are perpendicular to the thickness direction of the substrate.

9. The display panel according to any one of claims 1-8, characterized in that, The array film layer includes a first circuit, which includes a first potential line and a second potential line; The first signal line is a source signal line used to transmit data voltage, and the first circuit is an anti-static circuit; Optionally, the first circuit includes: The first transistor, wherein the first electrode and the control electrode of the first transistor are connected to the first potential line; The second transistor has its first terminal and control terminal connected to the second terminal of the first transistor. A third transistor, wherein the first terminal and the control terminal of the third transistor are connected to the second terminal of the second transistor and are also connected to the first signal line; and The fourth transistor has its first terminal and control terminal connected to the second terminal of the third transistor, and the second terminal of the fourth transistor is connected to the second potential line.

10. A display panel, characterized in that, include: substrate; An array film layer is disposed on one side of the substrate; the array film layer includes a first potential line, a second potential line and at least one first signal line; the first potential line and the second potential line are disposed in a different layer from the first signal line, and the orthographic projections of the first potential line and the second potential line on the substrate are spaced apart; A polarizing layer is disposed on the side of the array film layer away from the substrate; Wherein, at least one of the first signal lines has a first overlapping region with the first potential line on the substrate and a second overlapping region with the second potential line on the substrate, and the polarizing layer has a first positive projection on the substrate. The orthographic projections of the first potential line and the second potential line on the substrate are spaced apart from the first orthographic projection; the potassium ion distribution density on the surface of the first signal line away from the substrate is greater than or equal to 0 and less than or equal to 10. -2 mol / (μm) 2 .

11. The display panel according to claim 10, characterized in that, The absolute value of the potential difference between the first potential line and the first signal line is less than the absolute value of the potential difference between the second potential line and the first signal line; the distance between the first overlapping region and the first orthographic projection is less than the distance between the second overlapping region and the first orthographic projection; Optionally, the orthographic projection of the first potential line is located between the orthographic projection of the second potential line and the first orthographic projection.

12. The display panel according to claim 10 or 11, characterized in that, The display panel further includes a barrier structure. In the thickness direction of the substrate, the barrier structure is disposed on the side of the first potential line, the second potential line, and the first signal line away from the substrate, and the film layer in which the barrier structure is located is located between the polarizing layer and the substrate; the material of the barrier structure includes inorganic materials. The orthographic projection of the barrier structure onto the substrate covers at least one of the first overlapping region or the second overlapping region.

13. The display panel according to claim 12, characterized in that, The display panel further includes a touch layer group disposed between the array film layer and the polarizing layer; the barrier structure includes at least one film layer, and the at least one film layer of the barrier structure is disposed in the same layer as the at least one film layer of the touch layer group.

14. The display panel according to any one of claims 10-13, characterized in that, The display panel has a display area and a border area adjacent to the display area; the first potential line, the second potential line and at least a portion of the first signal line are located in the border area, and at least a portion of the polarizing layer is located in the display area; Optionally, the display panel further includes a curing adhesive layer, which is disposed on the side of the array film layer away from the substrate and located in the frame area; a gap is provided between the edge of the polarizing layer near the curing adhesive layer and the curing adhesive layer; Optionally, in the second direction or the first direction, the first potential line, the second potential line, and at least a portion of the first signal line are located on at least one side of the display area; the first direction and the second direction intersect, and both the first direction and the second direction are perpendicular to the thickness direction of the substrate.

15. The display panel according to any one of claims 11-14, characterized in that, The potentials of both the first potential line and the second potential line are greater than 0 or less than 0. Optionally, the potential of the first signal line is either greater than 0 or less than 0; Optionally, the first potential line is a power supply line, the second potential line is a high potential line of an anti-static circuit, and the first signal line is a source signal line used to transmit data voltage.

16. The display panel according to any one of claims 10-15, characterized in that, The potential of the first potential line and the potential of the first signal line are both greater than 0, and the potential of the second potential line is less than 0; or, the potential of the first potential line and the potential of the first signal line are both less than 0, and the potential of the second potential line is greater than 0; the distance between the first overlapping region and the first orthographic projection is less than the distance between the second overlapping region and the first orthographic projection; Optionally, the array film layer includes a first circuit, which includes a first potential line and a second potential line; The first signal line is a source signal line used to transmit data voltage, and the first circuit is an anti-static circuit.

17. The display panel according to any one of claims 10-16, characterized in that, The potential of the first potential line and the potential of the first signal line are both greater than the potential of the second potential line, or the potential of the first potential line and the potential of the first signal line are both less than the potential of the second potential line. The distance between the first overlapping region and the first orthographic projection is less than the distance between the second overlapping region and the first orthographic projection.

18. A display panel, characterized in that, include: substrate; An array film layer is disposed on one side of the substrate; the array film layer includes a second potential line and at least one first signal line; The second potential line is disposed on a different layer from the first signal line; the potential of the first signal line is greater than 0, and the potential of the second potential line is less than 0; or, the potential of the first signal line is less than 0, and the potential of the second potential line is greater than 0. The orthographic projection of the first signal line on the substrate and the orthographic projection of the second potential line on the substrate have a second overlapping area; A polarizing layer is disposed on the side of the array film layer away from the substrate; The orthogonal projection of the polarizing layer on the substrate is the first orthogonal projection, and the orthogonal projection of the second potential line on the substrate is spaced apart from the first orthogonal projection. A barrier structure is provided on the side of the second potential line and the first signal line away from the substrate in the thickness direction of the substrate, and the film layer in which the barrier structure is located is located between the polarizing layer and the substrate; the material of the barrier structure includes inorganic materials; the orthographic projection of the barrier structure on the substrate covers the second overlapping area.

19. The display panel according to claim 18, characterized in that, The display panel further includes a touch layer group disposed between the array film layer and the polarizing layer; the barrier structure includes at least one film layer, and the at least one film layer of the barrier structure is disposed in the same layer as the at least one film layer of the touch layer group; Optionally, the touch layer group includes a first touch conductive layer, a first insulating layer and a second touch conductive layer stacked together; the barrier structure includes a first inorganic film layer, wherein the first inorganic film layer and the first touch conductive layer are disposed in the same layer and of the same material. Optionally, the touch layer group further includes a second insulating layer and a third insulating layer, wherein the second insulating layer, the first touch conductive layer, the first insulating layer, the second touch conductive layer and the third insulating layer are sequentially stacked in a direction away from the substrate; the barrier structure includes a second inorganic film layer, wherein the second inorganic film layer is disposed in the same layer as the second insulating layer, the first insulating layer or the third insulating layer; Optionally, the array film layer includes a first potential line, wherein when the potential of the second potential line is greater than 0, the potential of the first potential line is less than 0; When the potential of the second potential line is less than 0, the potential of the first potential line is greater than 0; the first potential line and the first signal line are disposed on different layers, and the orthographic projections of the first potential line and the second potential line on the substrate are spaced apart; The orthographic projection of the first signal line on the substrate and the orthographic projection of the first potential line on the substrate have a first overlapping area; the orthographic projection of the first potential line on the substrate and the first orthographic projection are spaced apart; the blocking structure is disposed on the side of the first potential line away from the substrate; the orthographic projection of the blocking structure on the substrate covers the first overlapping area.

20. A display device, characterized in that, Includes the display panel as described in any one of claims 1-19.

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