Display panel and display device

Abstract

The invention relates to a display panel and a display device. The display panel comprises a substrate, an array film layer and a polarization layer, the array film layer comprises 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 arranged on different layers with the first signal line, and orthographic projections of the first potential line and the second potential line on the substrate are spaced; the potential of the first potential line and the potential of the first signal line are both larger than 0, and the potential of the second potential line is smaller than 0. Or the potential of the first potential line and the potential of the first signal line are both smaller than 0, and the potential of the second potential line is larger than 0; wherein the distance between the first overlapping area and the first orthographic projection is smaller than the distance between the second overlapping area and the first orthographic projection. The problem that the display panel is prone to display abnormities in a reliability test can be solved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] Organic Light Emitting Diode (OLED) display technology is regarded as the most promising new flat panel display technology of the next generation. Compared with liquid crystal display technology, OLED display technology has the advantages of low energy consumption, low cost, self-luminescence, wide viewing angle and fast response speed. However, the current OLED display panels are still prone to display anomalies. Summary of the invention

[0003] Based on this, it is necessary to provide a display panel and a display device that can improve the display abnormality problem.

[0004] In a first aspect, an embodiment of the present application provides a display panel, including:

[0005] substrate;

[0006] An array film layer is provided on one side of a substrate; the array film layer comprises 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 provided in different layers 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;

[0007] A polarizing layer, arranged on a side of the array film layer away from the substrate;

[0008] Among them, the orthographic projection of at least one first signal line on the substrate has a first overlapping area with the orthographic projection of the first potential line on the substrate, and has a second overlapping area with the orthographic projection of the second potential line on the substrate, the orthographic projection of the polarizing layer on the substrate is the first orthographic projection, and 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 distance between the first overlapping area and the first orthographic projection is smaller than the distance between the second overlapping area and the first orthographic projection.

[0009] In the above display panel, the potential polarity of the first signal line and the first potential line is the same (such as the potentials are both greater than 0 or both less than 0), and the potential polarity of the first signal line and the second potential line is opposite (such as the potential of one is greater than 0, and the potential of the other is less than 0). By adjusting the positions of the first potential line and the second potential line, the distance between the overlapping area with opposite potential polarity and the first orthographic projection of the polarizing layer is greater than the distance between the overlapping area with the same potential polarity and the first orthographic projection of the polarizing layer, so that the distance between the area where the positive and negative potentials overlap and the polarizing layer can be made longer, the migration path of the ions in the polarizing layer is extended, and the ions in the polarizing layer are not easy to migrate to the area where the positive and negative potentials overlap, thereby reducing the risk of electrochemical corrosion in the area where the positive and negative potentials overlap, thereby improving the problem that the display panel is prone to display abnormalities.

[0010] In one embodiment, the orthographic projection of the first potential line is located between the orthographic projection of the second potential line and the first orthographic projection.

[0011] Optionally, the same first signal line crosses both the first potential line and the second potential line;

[0012] Optionally, the display panel further includes a binding pad, and 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 binding pad on the substrate.

[0013] In one of the embodiments, the display panel further comprises a blocking structure, which is arranged on a side of the first potential line, the second potential line and the first signal line away from the substrate in the thickness direction of the substrate, and the film layer where the blocking structure is located is located between the polarizing layer and the substrate;

[0014] The orthographic projection of the barrier structure on the substrate covers the first overlapping region and / or the second overlapping region;

[0015] Optionally, the orthographic projection of the barrier structure on the substrate covers the orthographic projection of the first potential line on the substrate;

[0016] Optionally, the orthographic projection of the barrier structure on the substrate covers the orthographic projection of the second potential line on the substrate;

[0017] Optionally, the orthographic projection of the blocking structure on the substrate covers the orthographic projection of the first signal line on the substrate;

[0018] Optionally, an orthographic projection of the blocking structure on the substrate at least partially overlaps with an orthographic projection of an edge of the polarizing layer close to the first potential line on the substrate;

[0019] Optionally, the array film layer includes a first circuit, the first circuit includes a first potential line and a second potential line; and the orthographic projection of the blocking structure on the substrate covers the orthographic projection of the first circuit on the substrate.

[0020] In one embodiment, the material of the barrier structure includes an inorganic material;

[0021] Optionally, the material of the barrier structure includes metal material.

[0022] Optionally, the barrier structure is connected to a fixed potential or the barrier structure is in a floating state;

[0023] Optionally, the barrier structure includes at least one inorganic film layer;

[0024] Optionally, the barrier structure includes a first inorganic film layer and a second inorganic film layer, the second inorganic film layer is arranged on a 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.

[0025] 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;

[0026] 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 which are stacked; the barrier structure includes a first inorganic film layer, and the first inorganic film layer and the first touch conductive layer are arranged in the same layer and with the same material;

[0027] Optionally, the first inorganic film layer is connected to the first touch conductive layer;

[0028] Optionally, the touch layer group also includes a second insulating layer and a third insulating layer, and 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 in sequence in a direction away from the substrate; the barrier structure includes a second inorganic film layer, and the second inorganic film layer is arranged on the same layer as the second insulating layer, the first insulating layer or the third insulating layer.

[0029] 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 in a direction away from the substrate; the number of the first signal lines is multiple, and the first potential line and the second potential line are located in the third conductive layer;

[0030] 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 the first conductive layer or the second conductive layer;

[0031] Optionally, the array film layer further includes a planarization layer disposed on a side of the third conductive layer away from the substrate, and the planarization layer is in contact with the third conductive layer.

[0032] In one embodiment, the first potential line and / or the second potential line extends along a first direction; the first direction is perpendicular to the thickness direction of the substrate;

[0033] 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;

[0034] Optionally, at least one of the first potential line, the second potential line and the first signal line comprises the element molybdenum.

[0035] In one embodiment, the display panel has a display area and a frame area adjacent to the display area; the first potential line, the second potential line and at least part of the first signal line are located in the frame area, and at least part of the polarizing layer is located in the display area;

[0036] Optionally, the display panel further comprises a cured adhesive layer, which is arranged on a side of the array film layer away from the substrate and located in the frame area; a gap is arranged between an edge of the polarizing layer close to the cured adhesive layer and the cured adhesive layer;

[0037] Optionally, in the second direction or the first direction, the first potential line, the second potential line and at least part 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 the first direction and the second direction are both perpendicular to the thickness direction of the substrate;

[0038] Optionally, the display panel further includes a light emitting device layer, which is disposed between the array film layer and the polarizing layer and is located in the display area.

[0039] In one embodiment, the array film layer includes a first circuit, the first circuit includes a first potential line and a second potential line; the first signal line is a source signal line for transmitting a data voltage, and the first circuit is an anti-static circuit;

[0040] Optionally, the first circuit includes:

[0041] A first transistor, wherein a first electrode and a control electrode of the first transistor are connected to a first potential line;

[0042] a second transistor, wherein a first electrode and a control electrode of the second transistor are connected to the second electrode of the first transistor;

[0043] a third transistor, a first electrode and a control electrode of the third transistor being connected to the second electrode of the second transistor and to the first signal line; and

[0044] The fourth transistor has a first electrode and a control electrode connected to the second electrode of the third transistor, and a second electrode of the fourth transistor connected to the second potential line.

[0045] In a second aspect, an embodiment of the present application provides another display panel, including:

[0046] substrate;

[0047] An array film layer is arranged on one side of the substrate; the array film layer comprises 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 arranged in different layers 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;

[0048] A polarizing layer, arranged on a side of the array film layer away from the substrate;

[0049] The orthographic projection of at least one first signal line on the substrate has a first overlapping region with the orthographic projection of the first potential line on the substrate, and has a second overlapping region with the orthographic projection of the second potential line on the substrate, and the orthographic projection of the polarizing layer on the substrate is the first orthographic projection; the orthographic projections of the first potential line and the second potential line on the substrate are arranged at intervals from the first orthographic projection; the distribution density of potassium ions in 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 display panel is configured such that the distribution density of potassium ions 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 In this way, the electrochemical corrosion of potassium ions on the overlapping area of ​​the first signal line and the first potential line and the overlapping area of ​​the first signal line and the second potential line can be weakened, thereby improving the problem that the display panel is 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 smaller than the absolute value of the potential difference between the second potential line and the first signal line; the distance between the first overlapping area and the first orthographic projection is smaller than the distance between the second overlapping area 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 comprises a barrier structure, which is arranged on a side of the first potential line, the second potential line and the first signal line away from the substrate in the thickness direction of the substrate, and the film layer where the barrier structure is located is located between the polarizing layer and the substrate; the material of the barrier structure comprises an inorganic material;

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

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

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

[0057] Optionally, the orthographic projection of the blocking 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 which are stacked; the barrier structure includes a first inorganic film layer, and the first inorganic film layer and the first touch conductive layer are arranged in the same layer and with the same material;

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

[0061] Optionally, the touch layer group also includes a second insulating layer and a third insulating layer, and 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 in sequence in a direction away from the substrate; the barrier structure includes a second inorganic film layer, and the second inorganic film layer and the third insulating layer are arranged on the same layer.

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

[0063] Optionally, the display panel further comprises a cured adhesive layer, which is arranged on a side of the array film layer away from the substrate and located in the frame area; a gap is arranged between an edge of the polarizing layer close to the cured adhesive layer and the cured adhesive layer;

[0064] Optionally, in the second direction or the first direction, the first potential line, the second potential line and at least part 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 the first direction and the second direction are both perpendicular to the thickness direction of the substrate;

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

[0066] In one embodiment, the potentials of the first potential line and the second potential line are both 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 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 for transmitting a 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 area and the first orthographic projection is less than the distance between the second overlapping area and the first orthographic projection;

[0070] Optionally, the array film layer includes a first circuit, the first circuit includes a first potential line and a second potential line; the first signal line is a source signal line for transmitting a 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 area and the first orthographic projection is less than the distance between the second overlapping area and the first orthographic projection.

[0072] In one embodiment, the first potential line and / or the second potential line extends 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 comprises the element molybdenum.

[0075] In a third aspect, an embodiment of the present application further provides a display panel, including:

[0076] substrate;

[0077] An array film layer is provided on one side of the substrate; the array film layer comprises a second potential line and at least one first signal line; the second potential line and the first signal line are provided 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;

[0078] a polarizing layer, arranged on a side of the array film layer away from the substrate; an orthographic projection of the polarizing layer on the substrate is a first orthographic projection, and an orthographic projection of the second potential line on the substrate is arranged at an interval from the first orthographic projection;

[0079] A blocking structure, in the thickness direction of the substrate, the blocking structure is arranged on the side of the second potential line and the first signal line away from the substrate, and the film layer where the blocking structure is located is located between the polarizing layer and the substrate; the material of the blocking structure includes inorganic material; the orthographic projection of the blocking structure on the substrate covers the second overlapping area.

[0080] The display panel provided in the embodiment of the present application, by providing a barrier structure of inorganic material and making the barrier structure cover the second overlapping area, can block the ions in the polarizing layer from migrating toward the second overlapping area, thereby reducing the risk of electrochemical corrosion in the second overlapping area and improving the problem of display abnormalities that the display panel is prone to.

[0081] 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;

[0082] Optionally, the touch layer group includes a first touch conductive layer, a first insulating layer, and a second touch conductive layer which are stacked; the barrier structure includes a first inorganic film layer, and the first inorganic film layer and the first touch conductive layer are arranged in the same layer and with the same material;

[0083] Optionally, the first inorganic film layer is connected to the first touch conductive layer;

[0084] Optionally, the touch layer group also includes a second insulating layer and a third insulating layer, and 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 in sequence in a direction away from the substrate; the barrier structure includes a second inorganic film layer, and the second inorganic film layer is arranged on the same layer as the second insulating layer, the first insulating layer or the third insulating layer.

[0085] Optionally, the array film layer includes a first potential line, and 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 arranged 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 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 is spaced apart from the first orthographic projection; the blocking structure is arranged 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.

[0086] In a fourth aspect, an embodiment of the present application provides a display panel, including:

[0087] substrate;

[0088] An array film layer is arranged on one side of the substrate; the array film layer comprises 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 arranged in different layers 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 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;

[0089] A polarizing layer, arranged on a side of the array film layer away from the substrate;

[0090] Among them, the orthographic projection of at least one first signal line on the substrate has a first overlapping area with the orthographic projection of the first potential line on the substrate, and has a second overlapping area with the orthographic projection of the second potential line on the substrate, the orthographic projection of the polarizing layer on the substrate is the first orthographic projection, and 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 distance between the first overlapping area and the first orthographic projection is smaller than the distance between the second overlapping area and the first orthographic projection.

[0091] In the above-mentioned 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 can be made farther, which extends the migration path of ions in the polarizing layer, making it difficult for ions in the polarizing layer to migrate to the area with the potential difference, thereby reducing the risk of electrochemical corrosion in the area with the potential difference, thereby improving the problem of display abnormalities of the display panel.

[0092] In a fifth aspect, an embodiment of the present application provides a display device, comprising a display panel in any of the above embodiments. The above display device can improve the problem that the display panel is prone to display abnormalities. BRIEF DESCRIPTION OF THE DRAWINGS

[0093] In order to more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of the present application, the drawings required for use in the description of the embodiments or exemplary embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0094] Figure 1 A partial plan view of a display panel provided by an embodiment of the present application.

[0095] Figure 2 for Figure 1A schematic diagram of a cross-sectional structure of a display panel is shown.

[0096] Figure 3 for Figure 1 Another schematic diagram of the cross-sectional structure of the display panel is shown.

[0097] Figure 4 for Figure 1 A schematic diagram of another cross-sectional structure of a display panel is shown.

[0098] Figure 5 for Figure 1 Schematic diagram of the film layer structure of the touch module of the display panel shown.

[0099] Figure 6 for Figure 1 A schematic diagram of another cross-sectional structure of a display panel is shown.

[0100] Figure 7 for Figure 1 A structural schematic diagram of a display panel is shown.

[0101] Figure 8 for Figure 7 A schematic plan view of a first circuit and a barrier structure of a display panel is shown.

[0102] Fig. 9 for Figure 7 An equivalent circuit diagram of the first potential line, the second potential line, the first transistor, the second transistor, the third transistor, the fourth transistor and the first signal line of the first circuit shown.

[0103] Fig.10 A schematic diagram of the structure of a display device provided in one embodiment of the present application.

[0104] Description of reference numerals:

[0105] 1. Display device; 10. Display panel; 10a. Display area; 10b. Frame 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. Binding 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 , planarization layer; 128, semiconductor layer; 129, 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 glue layer; 18, pixel defining layer; 19, packaging layer; 110, support column; 111, flexible circuit board; 112, chip. DETAILED DESCRIPTION

[0106] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0107] It should be understood that although the terms "first", "second", etc. may be used herein to describe various elements, they do not represent any order, quantity or importance, but are only used to distinguish different components. These terms are only used to distinguish one element from another element. For example, without departing from the scope of the present application, the first element may be referred to as the second element, and similarly, the second element may be referred to as the first element. "Including" or "comprising" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0108] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0109] Organic Light Emitting Diode (OLED) display technology is regarded as the most promising new flat panel display technology of the next generation. Compared with liquid crystal display technology, OLED display technology has the advantages of low energy consumption, low cost, self-luminescence, wide viewing angle and fast response speed. In the relevant OLED display technology, the OLED display panel has the problem of abnormal display after the reliability test.

[0110] The inventors have found through research that the wiring is corroded during the reliability test, resulting in display anomalies. Furthermore, abnormal elements (such as potassium ions) in the polarizer migrate to the vicinity of the wiring, and under the action of the potential, the wiring is electrochemically corroded, resulting in abnormal display images.

[0111] In view of at least one of the above problems, embodiments of the present application provide a display panel and a display device to improve the problem that the display panel is prone to display abnormalities during reliability tests.

[0112] First, refer to Figure 1 and Figure 2 As shown, an embodiment of the present application provides a display panel 10, which may be an organic light emitting diode display (Organic Light Emitting Diode, OLED) or a quantum dot electroluminescent display (Quantum Dot Light Emitting Diodes, QLED).

[0113] Specifically, 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 arranged in different layers from the first signal line 12c, and the positive 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; 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; that is: the potential polarity of the first potential line 12a1 is the same as the potential polarity of the first signal line 12c, the potential polarity of the first potential line 12a1 is opposite to the potential polarity of the second potential line 12a2, and the potential polarity of the first signal line 12c is opposite to the potential polarity of the second potential line 12a2. The polarizing layer 13 is arranged 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 arranged in different layers from the first signal line 12c" means: 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). "The potential polarity of the first potential line 12a1 is the same as the potential polarity of the first signal line 12c" means: 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 the potential polarity of the second potential line 12a2" means: the potential of one of the first potential line 12a1 and the second potential line 12a2 is positive, and the potential of the other is negative. For example, the first potential line 12a1 and the second potential line 12a2 can be fixed potential lines or DC potential lines or power lines.

[0114] Among them, Figure 1 As shown, the orthographic projection of at least one first signal line 12c on the substrate 11 has a first overlapping area J1 with the orthographic projection of the first potential line 12a1 on the substrate 11, and has a second overlapping area J2 with the orthographic projection of the second potential line 12a2 on the substrate 11, and the orthographic projection of the polarizing layer 13 on the substrate 11 is the first orthographic projection; the distance between the first overlapping area and the first orthographic projection is smaller than the distance between the second overlapping area and the first orthographic projection, that is: the distance between the first overlapping area and the first orthographic projection is closer, and the distance between the second overlapping area and the first orthographic projection is farther.

[0115] The inventor has found through research that electrochemical corrosion is very likely to occur in the area where the positive potential wiring and the negative potential wiring overlap, and the corrosion is relatively serious. Therefore, the display panel 10 provided in the embodiment of the present 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 polarity (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 polarity (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 the positive and negative potentials overlap and the polarizing layer 13 can be made farther, the migration path of the ions in the polarizing layer 13 is extended, and the ions in the polarizing layer 13 are not easy to migrate to the area where the positive and negative potentials overlap, thereby reducing the risk of electrochemical corrosion in the area where the positive and negative potentials overlap, thereby improving the problem that the display panel 10 is prone to display abnormalities in reliability tests.

[0116] Here, it should be noted that the ions in the polarizing layer 13 may be potassium ions. In the process of the ions in the polarizing layer 13 migrating toward the array film layer 12, they may migrate in an ionic state or in combination with other substances. Exemplarily, the potassium ions in the polarizing layer 13 may combine with water and migrate toward the wiring (such as the first potential line 12a1, the second potential line 12a2, and the first signal line 12c) in the array film layer 12 with the help of water.

[0117] 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. In this way, it is equivalent to that the first potential line 12a1 is located between the second potential line 12a2 and the polarizing layer 13 in the plan view (or the top view). In this way, the distance between the overlapping area of ​​the first signal line 12c and the second potential line 12a2 and the polarizing layer 13 can be made farther, and the area where the positive and negative potentials overlap is made farther away from the polarizing layer 13, which prolongs the migration path of the ions in the polarizing layer 13, making it difficult for the ions in the polarizing layer 13 to migrate to the area where the positive and negative potentials overlap, thereby reducing the risk of electrochemical corrosion in the area where the positive and negative potentials overlap, thereby improving the problem that the display panel 10 is prone to display abnormalities in reliability tests.

[0118] 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.

[0119] In one embodiment, if Figure 1 As shown, the same first signal line 12c intersects both the first potential line 12a1 and the second potential line 12a2.

[0120] In one embodiment, reference Figure 8As shown, the display panel 10 also includes a binding 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 binding pad 12d on the substrate 11, that is, in the plan schematic diagram (or the top view), the second potential line 12a2 is located between the first potential line 12a1 and the binding pad 12d.

[0121] In one embodiment, referring to Figure 3 and Figure 4 As shown, 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 where the barrier structure 14 is located 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 the ions in the polarizing layer 13 from migrating toward 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.

[0122] In one example, the orthographic projection of the barrier structure 14 on the substrate 11 covers the first overlapping region, so that the ions of the polarizing layer 13 can be blocked from migrating to the first overlapping region, thereby preventing electrochemical corrosion from occurring in the first overlapping region.

[0123] In another example, the orthographic projection of the barrier structure 14 on the substrate 11 covers the second overlapping region, so that the ions of the polarizing layer 13 can be blocked from migrating to the second overlapping region, thereby preventing electrochemical corrosion from occurring in the second overlapping region.

[0124] In another example, the orthographic projection of the barrier structure 14 on the substrate 11 covers the first overlapping region and the second overlapping region. In this way, the ions of the polarizing layer 13 can be blocked from migrating to the first overlapping region and the second overlapping region, thereby preventing electrochemical corrosion from occurring in the first overlapping region and the second overlapping region.

[0125] In one embodiment, the orthographic projection of the barrier structure 14 on the substrate 11 covers the orthographic projection of the first potential line 12a1 on the substrate 11. In this way, the ions in the polarizing layer 13 can be blocked from migrating toward the first potential line 12a1, thereby preventing the first potential line 12a1 from being corroded.

[0126] In one embodiment, the orthographic projection of the barrier structure 14 on the substrate 11 covers the orthographic projection of the second potential line 12a2 on the substrate 11. In this way, the ions in the polarizing layer 13 can be blocked from migrating toward the second potential line 12a2, thereby preventing the first potential line 12a1 from being corroded.

[0127] In one embodiment, the orthographic projection of the barrier structure 14 on the substrate 11 covers the orthographic projection of the first signal line 12c on the substrate 11. In this way, the ions in the polarizing layer 13 can be blocked from migrating toward the second potential line 12a2, thereby preventing the first signal line 12c from being corroded.

[0128] 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 close to the first potential line 12a1 on the substrate 11. In this way, the barrier area of ​​the barrier structure 14 can be made larger, the barrier performance of the barrier structure 14 can be maximized, and electrochemical corrosion can be further prevented from occurring in the first overlapping area and the second overlapping area.

[0129] In one embodiment, the array film layer 12 includes a first circuit 12a, and the first circuit 12a includes a first potential line 12a1 and a second potential line 12a2; the orthographic projection of the barrier structure 14 on the substrate 11 covers the orthographic projection of the first circuit 12a on the substrate 11. In this way, the ions in the polarizing layer 13 can be blocked from migrating toward the first circuit 12a, thereby preventing the first circuit 12a from being corroded.

[0130] In one embodiment, the material of the barrier structure 14 includes an inorganic material, so that the barrier structure 14 can have excellent barrier properties, making it difficult for the corrosion ions to pass through the barrier structure 14, thereby cutting off the migration path of the corrosion ions.

[0131] In one embodiment, the material of the barrier structure 14 includes a metal material, so that the barrier structure 14 can have excellent barrier properties, making it difficult for corrosion ions to pass through the barrier structure 14, thereby cutting off the migration path of the corrosion ions.

[0132] In one embodiment, the barrier structure 14 is connected to a fixed potential. In this way, the barrier structure 14 can have a certain shielding performance, can shield the interference signal, and reduce the influence of the interference signal on the first potential line 12a1, the second potential line 12a2 and the first signal line 12c. It should be noted that the barrier structure 14 can be connected to a positive potential or a negative potential. Preferably, the barrier structure 14 is connected to a negative potential (such as a cathode potential) to achieve a better shielding effect.

[0133] In one embodiment, the barrier structure 14 is in a floating state, that is, the barrier structure 14 is electrically connected to any potential.

[0134] In one embodiment, the barrier structure 14 includes at least one inorganic film layer, so that the barrier structure 14 has excellent barrier properties, making it difficult for corrosion ions to pass through the barrier structure 14, thereby cutting off the migration path of the corrosion ions.

[0135] In one embodiment, the barrier structure 14 includes a first inorganic film layer 141 and a second inorganic film layer 142, and 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 material of the first inorganic film layer 141 is an inorganic metal material, and the material of the second inorganic film layer 142 is an inorganic insulating material. In this way, on the one hand, by providing 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, prevent the corrosive ions from corroding the first inorganic film layer 141, thereby ensuring the structural integrity of the first inorganic film layer 141, and thus making the first inorganic film layer 141 have better barrier performance.

[0136] In one embodiment, referring to Figure 3 and Figure 4 As shown, 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. In this way, when manufacturing the film layer of the touch layer group, a mask plate of the touch layer group 15 can be used to add a dummy pattern (virtual pattern) above the wiring (the first potential line 12a1, the second potential line 12a2 and the first signal line 12c) to form the barrier structure 14, thereby achieving the purpose of isolating corrosive elements without increasing the cost.

[0137] In one embodiment, referring to Figure 5 As shown, the touch layer group 15 includes a first touch conductive layer 151, a first insulating layer 152 and a second touch conductive layer 153. The barrier structure 14 includes a first inorganic film layer 141, which is provided in the same layer and material as the first touch conductive layer 151.

[0138] In this way, when manufacturing the first touch conductive layer 151, the mask plate of the first touch conductive layer 151 can be used to add dummy wiring (virtual wiring) above the wiring (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.

[0139] It is understandable that the first inorganic film layer 141 may also be provided in the same layer and with the same material as the first insulating layer 152 or the second touch conductive layer 153 .

[0140] In one embodiment, the first inorganic film layer 141 is connected to the first touch conductive layer 151. In this way, the barrier structure 14 can be connected to a fixed potential. In this way, the barrier structure 14 can have a certain shielding performance, shield the interference signal, and reduce the influence of the interference signal on the first potential line 12a1, the second potential line 12a2 and the first signal line 12c.

[0141] In one embodiment, if Figure 5 As shown, the touch layer group 15 further includes a second insulating layer 154 and a third insulating layer 155, and 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 in a direction away from the substrate 11. The barrier structure 14 includes a second inorganic film layer 142, and the second inorganic film layer 142 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 and the third insulating layer 155 are disposed in the same layer.

[0142] In this way, on the one hand, by setting up a multi-layer inorganic film layer, 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 and prevent the corrosion ions from corroding the first inorganic film layer 141, thereby ensuring the structural integrity of the first inorganic film layer 141, and further making the first inorganic film layer 141 have better barrier performance.

[0143] It can be understood that the second inorganic film layer 142 can be connected to the third insulating layer 155 to form an integrated whole-surface film layer.

[0144] 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 .

[0145] In one embodiment, the transmitting electrode and the receiving electrode are disposed in the second touch conductive layer 153 , and the touch traces and the electrode conductive bridges are disposed in the first touch conductive layer 151 .

[0146] It should be noted that the material of the second touch conductive layer 153 can be 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 material of the first touch conductive layer 151 can include titanium, aluminum, molybdenum, etc.

[0147] In one embodiment, referring to Figure 3As shown, 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 in a direction away from the substrate 11. There are multiple first signal lines 12c, and the first potential line 12a1 and the second potential line 12a2 are located in the third conductive layer 125.

[0148] 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 the first conductive layer 121 or the second conductive layer 123.

[0149] In one embodiment, the array film layer 12 further includes a planarization layer 127 disposed on a 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 with the related art, the passivation layer 126 between the third conductive layer 125 and the planarization layer 127 is eliminated, thereby reducing the film layer structure in the array film layer 12, reducing the manufacturing cost and also reducing the thickness of the display panel 10.

[0150] It should also be noted that, referring to Figure 3 or Figure 4 As shown, by arranging the barrier structure 14 and the film layer in the touch layer group 15 in the same layer, it is equivalent to arranging the barrier structure 14 on the side of the planarization layer 127 away from the substrate 11. In this way, the planarization layer 127 can be prevented from absorbing too much water vapor, thereby improving the reliability of the display panel 10.

[0151] 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 a side of the sixth insulating layer 129 away from the substrate 11.

[0152] In one embodiment, referring to Figure 6 As shown, the array film layer 12 includes a passivation layer 126, and the barrier structure 14 is provided in the same layer and the same material as the passivation layer 126. In this way, the barrier structure 14 and the passivation layer 126 are simultaneously manufactured in the same manufacturing process, thereby achieving the purpose of isolating corrosive elements without increasing costs.

[0153] Furthermore, if Figure 6As shown, 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 which are stacked in a direction away from the substrate 11, and a passivation layer 126 is arranged between the third conductive layer 125 and the planarization layer 127; there are multiple first signal lines 12c, a part of the first signal lines 12c are located in the first conductive layer 121, and another part 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.

[0154] In one embodiment, the first potential line 12 a 1 and / or the second potential line 12 a 2 extends along a first direction X; the first direction X is perpendicular to the thickness direction of the substrate 11 .

[0155] In one embodiment, at least a portion of the first signal line 12 c 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.

[0156] In one embodiment, the first direction X is perpendicular to the second direction Y.

[0157] In one embodiment, at least one of the first potential line 12a1, the second potential line 12a2 and the first signal line 12c includes elemental Mo. It is understood that elemental Mo and potassium ions are susceptible to electrochemical corrosion.

[0158] In one embodiment, referring to Figure 7 As shown, the display panel 10 has a display area 10a and a frame area 10b adjacent to the display area 10a; the first potential line 12a1, the second potential line 12a2 and at least part of the first signal line 12c are located in the frame area 10b, and at least part of the polarizing layer 13 is located in the display area 10a.

[0159] In this way, the embodiment of the present application is equivalent to adjusting the routing position of the border area 10b, so that the distance between the overlapping area with opposite potential polarity (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 the same potential polarity (i.e., the first overlapping area) and the first orthographic projection of the polarizing layer 13. In this way, the distance between the area where the positive and negative potentials overlap and the polarizing layer 13 can be made farther, which extends the migration path of the ions in the polarizing layer 13, making it difficult for the ions in the polarizing layer 13 to migrate to the area where the positive and negative potentials overlap, thereby reducing the risk of electrochemical corrosion in the area where the positive and negative potentials overlap, thereby improving the problem of display abnormality of the display panel 10 during reliability testing.

[0160] In one embodiment, 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 a data voltage, and the first circuit 12a is an anti-static circuit. Specifically, the potential of the first signal line 12c is a positive potential, the potential of the first potential line 12a1 is a positive potential, and the potential of the second potential line 12a2 is a negative potential.

[0161] In one embodiment, referring to Figure 8 As shown, 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, and each first signal line 12c is electrically connected to a first transistor unit 12a3 and a second transistor unit 12a4.

[0162] Specifically, each first transistor unit 12a3 may include a plurality of first transistors. Each second transistor unit 12a4 may include a plurality of second transistors. When static electricity on the source signal line of the anti-static circuit causes the voltage to be too high, the transistor connected to the first potential line 12a1 is turned on to release static electricity; when static electricity on the source signal line causes the voltage to be too low, the transistor connected to the second potential line 12a2 is turned on to release static electricity.

[0163] Specifically, Fig. 9 As shown, 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.

[0164] The first electrode and control electrode of the first transistor T1 are connected to the first potential line 12a1; the first electrode and control electrode of the second transistor T2 are connected to the second electrode of the first transistor T1; the first electrode and control electrode of the third transistor T3 are connected to the second electrode of the second transistor T2, and are connected to the first signal line 12c; the first electrode and control electrode of the fourth transistor T4 are connected to the second electrode of the third transistor T3, and the second electrode of the fourth transistor T4 is connected to the second potential line 12a2. Fig. 9 In FIG. 1 , VGH represents the first potential line 12 a 1 , VGL represents the second potential line 12 a 2 , and SOURCE represents the first signal line 12 c .

[0165] Furthermore, the array film layer 12 further includes a plurality of binding pads 12d, wherein a portion of the binding pads 12d are connected to the first signal lines 12c in a one-to-one correspondence. Further, the display panel 10 further includes a flexible circuit board 111 and a chip 112, wherein the chip 112 is bound to the flexible circuit board 111, and the binding pads 12d are used to be bound and connected to the flexible circuit board 111.

[0166] 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.

[0167] In one embodiment, the first potential line 12a1 is a high potential line (VGH) of the anti-static circuit, the second potential line 12a2 is an ELVSS signal line, and the ELVSS signal line is electrically connected to the cathode of the light-emitting device; the first signal line 12c is a source signal line for transmitting data voltage, and the source signal line is electrically connected to the data line of the display area, and the data line is electrically connected to the pixel circuit. In another embodiment, the first potential line 12a1 can also be electrically connected to the gate drive circuit and is a high potential line (VGH).

[0168] In one embodiment, the first potential line 12a1 is a power 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 a data voltage. The power line (ELVDD) is electrically connected to the pixel circuit, and the pixel circuit is electrically connected to the anode of the light emitting device.

[0169] In one embodiment, the first potential line 12a1 is a power line (ELVDD), the second potential line 12a2 is a low potential line (VGL) of an anti-static circuit, and the first signal line 12c is a source signal line for transmitting a data voltage. In another embodiment, the second potential line 12a2 may also be electrically connected to a gate drive circuit and is a low potential line (VGL).

[0170] In one embodiment, referring to Figure 4 and Figure 6 As shown, the display panel 10 further includes a curing adhesive layer 17, which is disposed on a side of the array film layer 12 away from the substrate 11 and located in the frame area 10b. Exemplarily, the material of the curing adhesive layer 17 is UV adhesive.

[0171] Furthermore, if Figure 4 As shown, a gap S is provided between the edge of the polarizing layer 13 near the curing adhesive layer 17 and the curing adhesive layer 17 . It should be noted that during the reliability test, the polarizing layer 13 may shrink, thereby generating a gap between the polarizing layer 13 and the curing adhesive layer 17 .

[0172] 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.

[0173] In one embodiment, referring to Figure 6 As shown, 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 is 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 further includes a pixel circuit, which is connected to the light emitting device and is used to drive the light emitting device to emit light.

[0174] Furthermore, the display panel 10 further includes a pixel defining layer 18 , the pixel defining layer 18 includes a pixel opening, and the light emitting device in the light emitting device layer 16 is disposed at the pixel opening.

[0175] Furthermore, a support column 110 is provided on a side of the pixel defining layer 18 away from the substrate 11 , and the support column 110 can be used to support the mask plate.

[0176] Furthermore, the display panel 10 further includes an encapsulation layer 19, which is disposed on a 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.

[0177] Second, refer to Figure 1 As shown, the embodiment of the present application 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 arranged 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 arranged in different layers 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 arranged 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 arranged in different layers from the first signal line 12c" means: 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).

[0178] The orthographic projection of at least one first signal line 12c on the substrate 11 has a first overlapping area J1 with the orthographic projection of the first potential line 12a1 on the substrate 11, and has a second overlapping area 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 arranged at intervals from the first orthographic projection; the distribution density of potassium ions in the surface of the first signal line 12c away from the substrate 11 is greater than or equal to 0 and less than or equal to 10 -2 mol / (μm) 2 .

[0179] The display panel 10 provided in the embodiment of the present application is configured such that the distribution density of potassium ions in the surface of the first signal line 12c away from the substrate 11 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 potassium ions on the overlapping area of ​​the first signal line 12c and the first potential line 12a1 and the overlapping area of ​​the first signal line 12c and the second potential line 12a2 can be weakened, thereby improving the problem of display abnormality of the display panel 10 in reliability testing.

[0180] In one embodiment, the absolute value of the potential difference between the first potential line 12a1 and the first signal line 12c is smaller 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 area and the first orthographic projection is smaller than the distance between the second overlapping area and the first orthographic projection, that is, the distance between the first overlapping area and the first orthographic projection is closer, and the distance between the second overlapping area and the first orthographic projection is farther.

[0181] The inventors have found through research that the overlapped areas of the wirings located in different layers are prone to corrosion, and the greater the potential difference between the two overlapping wirings, the more serious the corrosion. Therefore, the display panel 10 provided in the embodiment of the present application adjusts the positions of the first potential line 12a1 and the second potential line 12a2 so that the distance between the overlapped area with a larger potential difference and the first orthographic projection of the polarizing layer 13 is greater than the distance between the overlapped 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 can be further away from the polarizing layer 13, extending the migration path of the ions in the polarizing layer 13, making it difficult for the 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, thereby improving the problem of display abnormality of the display panel 10 in reliability testing.

[0182] Here, it should be noted that the ions in the polarizing layer 13 may be potassium ions. In the process of the ions in the polarizing layer 13 migrating toward the array film layer 12, they may migrate in an ionic state or in combination with other substances. Exemplarily, the potassium ions in the polarizing layer 13 may combine with water and migrate toward the wiring (such as the first potential line 12a1, the second potential line 12a2, and the first signal line 12c) in the array film layer 12 with the help of water.

[0183] 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.

[0184] In this way, it is equivalent to that in the plan view (or the top view), the first potential line 12a1 is located between the second potential line 12a2 and the polarizing layer 13. In this way, the distance between the overlapping area of ​​the first signal line 12c and the second potential line 12a2 and the polarizing layer 13 can be made farther, and the overlapping area with a larger potential difference is made farther away from the polarizing layer 13, thereby extending the migration path of ions in the polarizing layer 13, making it difficult for ions in the polarizing layer 13 to migrate to the overlapping area with a larger potential difference, thereby reducing the risk of electrochemical corrosion in the overlapping area with a larger potential difference, thereby improving the problem of display abnormality in the display panel 10 in the reliability test.

[0185] In one embodiment, reference Figure 3 and Figure 4 As shown, 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 where the barrier structure 14 is located 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 the ions in the polarizing layer 13 from migrating toward 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.

[0186] In one example, the orthographic projection of the barrier structure 14 on the substrate 11 covers the first overlapping region, so that the ions of the polarizing layer 13 can be blocked from migrating to the first overlapping region, thereby preventing electrochemical corrosion from occurring in the first overlapping region.

[0187] In another example, the orthographic projection of the barrier structure 14 on the substrate 11 covers the second overlapping region, so that the ions of the polarizing layer 13 can be blocked from migrating to the second overlapping region, thereby preventing electrochemical corrosion from occurring in the second overlapping region.

[0188] In another example, the orthographic projection of the barrier structure 14 on the substrate 11 covers the first overlapping region and the second overlapping region. In this way, the ions of the polarizing layer 13 can be blocked from migrating to the first overlapping region and the second overlapping region, thereby preventing electrochemical corrosion from occurring in the first overlapping region and the second overlapping region.

[0189] In one embodiment, the orthographic projection of the barrier structure 14 on the substrate 11 covers the orthographic projection of the first potential line 12a1 on the substrate 11. In this way, the ions in the polarizing layer 13 can be blocked from migrating toward the first potential line 12a1, thereby preventing the first potential line 12a1 from being corroded.

[0190] In one embodiment, the orthographic projection of the barrier structure 14 on the substrate 11 covers the orthographic projection of the second potential line 12a2 on the substrate 11. In this way, the ions in the polarizing layer 13 can be blocked from migrating toward the second potential line 12a2, thereby preventing the first potential line 12a1 from being corroded.

[0191] In one embodiment, the orthographic projection of the barrier structure 14 on the substrate 11 covers the orthographic projection of the first signal line 12c on the substrate 11. In this way, the ions in the polarizing layer 13 can be blocked from migrating toward the second potential line 12a2, thereby preventing the first signal line 12c from being corroded.

[0192] In one embodiment, the material of the barrier structure 14 includes an inorganic material, so that the barrier structure 14 can have excellent barrier properties, making it difficult for the corrosion ions to pass through the barrier structure 14, thereby cutting off the migration path of the corrosion ions.

[0193] In one embodiment, the material of the barrier structure 14 includes a metal material, so that the barrier structure 14 can have excellent barrier properties, making it difficult for corrosion ions to pass through the barrier structure 14, thereby cutting off the migration path of the corrosion ions.

[0194] In one embodiment, the barrier structure 14 is connected to a fixed potential. In this way, the barrier structure 14 can have a certain shielding performance, can shield the interference signal, and reduce the influence of the interference signal on the first potential line 12a1, the second potential line 12a2 and the first signal line 12c. It is understandable that the barrier structure 14 may not be connected to a potential.

[0195] In one embodiment, the barrier structure 14 includes at least one inorganic film layer, so that the barrier structure 14 has excellent barrier properties, making it difficult for corrosion ions to pass through the barrier structure 14, thereby cutting off the migration path of the corrosion ions.

[0196] 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 material of the first inorganic film layer 141 is an inorganic metal material, and the material of the second inorganic film layer 142 is an inorganic insulating material. Thus, on the one hand, by providing 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, prevent the corrosion ions from corroding the first inorganic film layer 141, thereby ensuring the structural integrity of the first inorganic film layer 141, and thus making the first inorganic film layer 141 have better barrier performance.

[0197] In one embodiment, referring to Figure 3 and Figure 4 As shown, 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. In this way, when manufacturing the film layer of the touch layer group, a mask plate of the touch layer group 15 can be used to add a dummy pattern (virtual pattern) above the wiring (the first potential line 12a1, the second potential line 12a2 and the first signal line 12c) to form the barrier structure 14, thereby achieving the purpose of isolating corrosive elements without increasing the cost.

[0198] 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 which are stacked; the barrier structure 14 includes a first inorganic film layer 141, and the first inorganic film layer 141 and the first touch conductive layer 151 are arranged in the same layer and made of the same material.

[0199] In this way, when manufacturing the first touch conductive layer 151, the mask plate of the first touch conductive layer 151 can be used to add dummy wiring (virtual wiring) above the wiring (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.

[0200] It is understandable that the first inorganic film layer 141 may also be provided in the same layer and with the same material as the first insulating layer 152 or the second touch conductive layer 153 .

[0201] In one embodiment, the first inorganic film layer 141 is connected to the first touch conductive layer 151. In this way, the barrier structure 14 can be connected to a fixed potential. In this way, the barrier structure 14 can have a certain shielding performance, shield the interference signal, and reduce the influence of the interference signal on the first potential line 12a1, the second potential line 12a2 and the first signal line 12c.

[0202] In one embodiment, the touch layer group 15 further includes a second insulating layer 154 and a third insulating layer 155, and 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 in sequence in a direction away from the substrate 11; the barrier structure 14 includes a second inorganic film layer 142, and the second inorganic film layer 142 and the third insulating layer 155 are arranged in the same layer.

[0203] In this way, on the one hand, by setting up a multi-layer inorganic film layer, 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 and prevent the corrosion ions from corroding the first inorganic film layer 141, thereby ensuring the structural integrity of the first inorganic film layer 141, and further making the first inorganic film layer 141 have better barrier performance.

[0204] It can be understood that the second inorganic film layer 142 can be connected to the third insulating layer 155 to form an integrated whole-surface film layer.

[0205] 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 .

[0206] In one embodiment, the transmitting electrode and the receiving electrode are disposed in the second touch conductive layer 153 , and the touch traces and the electrode conductive bridges are disposed in the first touch conductive layer 151 .

[0207] It should be noted that the material of the second touch conductive layer 153 can be 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 material of the first touch conductive layer 151 can include titanium, aluminum, molybdenum, etc.

[0208] In one embodiment, referring to Figure 3As shown, 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 in a direction away from the substrate 11; the number of first signal lines 12c is multiple, a part of the first signal lines 12c is located in the first conductive layer 121, and another part of the first signal lines 12c is 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, the array film layer 12 further includes a planarization layer 127 disposed on a 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 with the related art, the passivation layer 126 between the third conductive layer 125 and the planarization layer 127 is eliminated, thereby reducing the film layer structure in the array film layer 12, reducing the manufacturing cost and reducing the thickness of the display panel 10.

[0210] In one embodiment, referring to Figure 6 As shown, the array film layer 12 includes a passivation layer 126, and the barrier structure 14 is provided in the same layer and the same material as the passivation layer 126. In this way, the barrier structure 14 and the passivation layer 126 are simultaneously manufactured in the same manufacturing process, thereby achieving the purpose of isolating corrosive elements without increasing costs.

[0211] Furthermore, if Figure 6 As shown, 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 which are stacked in a direction away from the substrate 11, and a passivation layer 126 is arranged between the third conductive layer 125 and the planarization layer 127; there are multiple first signal lines 12c, a part of the first signal lines 12c are located in the first conductive layer 121, and another part 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.

[0212] In one embodiment, referring to Figure 7 As shown, the display panel 10 has a display area 10a and a frame area 10b adjacent to the display area 10a; the first potential line 12a1, the second potential line 12a2 and at least part of the first signal line 12c are located in the frame area 10b, and at least part of the polarizing layer 13 is located in the display area 10a.

[0213] In this way, the embodiment of the present application is equivalent to adjusting the routing position of the border area 10b, 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 made farther away from the polarizing layer 13, thereby extending the migration path of the ions in the polarizing layer 13, making it difficult for the 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, and further improving the problem of display abnormality of the display panel 10 during reliability testing.

[0214] In one embodiment, the potentials of the first potential line 12a1 and the second potential line 12a2 are both 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. Exemplarily, the potentials of the first potential line 12a1 and the second potential line 12a2 are both positive potentials or both negative potentials.

[0215] 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.

[0216] In one embodiment, the first potential line 12a1 is a power line (ELVDD), the second potential line 12a2 is a high potential line (VGH) of 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.

[0217] 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 area and the first orthographic projection is less than the distance between the second overlapping area and the first orthographic projection.

[0218] 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 a data voltage, and the first circuit 12a is an anti-static circuit.

[0219] 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 area and the first orthographic projection is less than the distance between the second overlapping area and the first orthographic projection.

[0220] In one embodiment, the first potential line 12 a 1 and / or the second potential line 12 a 2 extends along a first direction; the first direction is perpendicular to the thickness direction of the substrate 11 .

[0221] Optionally, at least a portion of the first signal line 12 c extends along a second direction; the second direction is perpendicular to the thickness direction of the substrate 11 and intersects with the first direction.

[0222] 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.

[0223] In one embodiment, referring to Figure 4 and Figure 6 As shown, the display panel 10 further includes a curing adhesive layer 17, which is disposed on a side of the array film layer 12 away from the substrate 11 and located in the frame area 10b. Exemplarily, the material of the curing adhesive layer 17 is a UV adhesive. Figure 4 As shown, a gap S is provided between the edge of the polarizing layer 13 near the curing adhesive layer 17 and the curing adhesive layer 17 . It should be noted that during the reliability test, the polarizing layer 13 may shrink, thereby generating a gap between the polarizing layer 13 and the curing adhesive layer 17 .

[0224] In one embodiment, in the second direction or the first direction, the first potential line 12a1, the second potential line 12a2 and at least part 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 the first direction and the second direction are both perpendicular to the thickness direction of the substrate 11.

[0225] In one embodiment, referring to Figure 6As shown, 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 is 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 further includes a pixel circuit, which is connected to the light emitting device and is used to drive the light emitting device to emit light.

[0226] Furthermore, the display panel 10 further includes a pixel defining layer 18 , the pixel defining layer 18 includes a pixel opening, and the light emitting device in the light emitting device layer 16 is disposed at the pixel opening.

[0227] Furthermore, a support column 110 is provided on a side of the pixel defining layer 18 away from the substrate 11 , and the support column 110 can be used to support the mask plate.

[0228] Furthermore, the display panel 10 further includes an encapsulation layer 19, which is disposed on a 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.

[0229] Thirdly, refer to Figure 1-Figure 9 As shown, the embodiment of the present application further provides a display panel 10 , which includes a substrate 11 , an array film layer 12 , a polarizing layer 13 and a barrier structure 14 .

[0230] Among them, the array film layer 12 is arranged on one side of the 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 arranged in different layers, the potential of the first signal line 12c is greater than 0, and the potential of the second potential line 12a2 is less than 0; or, the potential of the first signal line 12c is less than 0, and the potential of the second potential line 12a2 is greater than 0. The orthographic projection of the first signal line 12c on the substrate 11 and the orthographic projection of the second potential line 12a2 on the substrate 11 have a second overlapping area; the polarizing layer 13 is arranged on the side of the array film layer 12 away from the substrate 11; the orthographic projection of the polarizing layer 13 on the substrate 11 is the first orthographic projection, and the orthographic projection of the second potential line 12a2 on the substrate 11 is arranged at an interval with the first orthographic projection; in the thickness direction of the substrate 11, the blocking structure 14 is arranged on the side of the second potential line 12a2 and the first signal line 12c away from the substrate 11, and the film layer where the blocking structure 14 is located is located between the polarizing layer 13 and the substrate 11; the material of the blocking structure 14 includes inorganic material; the orthographic projection of the blocking structure 14 on the substrate 11 covers the second overlapping area.

[0231] The display panel 10 provided in the embodiment of the present application can block the migration of ions in the polarizing layer 13 toward the second overlapping area by setting a barrier structure 14 of inorganic material and making the barrier structure 14 cover the second overlapping area, thereby reducing the risk of electrochemical corrosion in the second overlapping area and improving the problem that the display panel 10 is prone to display abnormalities.

[0232] 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 at least one film layer of the barrier structure 14 is disposed in the same layer as at least one film layer of the touch layer group 15 .

[0233] 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, which are stacked; the barrier structure 14 includes a first inorganic film layer 141, and the first inorganic film layer 141 and the first touch conductive layer 151 are arranged in the same layer and the same material. In this way, when manufacturing the first touch conductive layer 151, a mask plate of the first touch conductive layer 151 can be used to add a dummy trace (virtual trace) above the traces (the first potential line 12a1, the second potential line 12a2, and the first signal line 12c) to form the barrier structure 14, thereby achieving the purpose of isolating corrosive elements without increasing costs.

[0234] In one embodiment, the first inorganic film layer 141 is connected to the first touch conductive layer 151. In this way, the barrier structure 14 can be connected to a fixed potential. In this way, the barrier structure 14 can have a certain shielding performance, shield the interference signal, and reduce the influence of the interference signal on the first potential line 12a1, the second potential line 12a2 and the first signal line 12c.

[0235] In one embodiment, the touch layer group 15 further includes a second insulating layer 154 and a third insulating layer 155, and 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 in sequence in a direction away from the substrate 11; the barrier structure 14 includes a second inorganic film layer 142, and the second inorganic film layer 142 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 and the third insulating layer 155 are disposed in the same layer.

[0236] In this way, on the one hand, by setting up a multi-layer inorganic film layer, 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 and prevent the corrosion ions from corroding the first inorganic film layer 141, thereby ensuring the structural integrity of the first inorganic film layer 141, and further making the first inorganic film layer 141 have better barrier performance.

[0237] It can be understood that the second inorganic film layer 142 can be connected to the third insulating layer 155 to form an integrated whole-surface film layer.

[0238] In one embodiment, the array film layer 12 includes a first potential line 12a1, and 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 arranged 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 area; the orthographic projection of the first potential line 12a1 on the substrate 11 is spaced apart from the first orthographic projection; the blocking structure 14 is arranged on the side of the first potential line 12a1 away from the substrate 11; the orthographic projection of the blocking structure 14 on the substrate 11 covers the first overlapping area.

[0239] In this way, the migration of ions in the polarizing layer 13 toward the first overlapping region can be blocked, the risk of electrochemical corrosion in the first overlapping region is reduced, and the problem of abnormal display of the display panel 10 in reliability testing is improved.

[0240] Fourthly, refer to Figure 1-Figure 9 As shown, an embodiment of the present application provides a display panel 10 , which includes a substrate 11 , an array film layer 12 and a polarizing layer 13 .

[0241] The array film layer 12 is arranged 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 arranged in different layers 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. The polarizing layer 13 is arranged on the side of the array film layer 12 away from the substrate 11.

[0242] Among them, the orthographic projection of at least one first signal line 12c on the substrate 11 has a first overlapping area with the orthographic projection of the first potential line 12a1 on the substrate 11, and has a second overlapping area 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, and 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 area and the first orthographic projection is smaller than the distance between the second overlapping area and the first orthographic projection.

[0243] In the above-mentioned display panel 10, the second potential line 12a2 and the first signal line 12c have a certain potential difference. By adjusting the positions of the first potential line 12a1 and the second potential line 12a2, the distance between the second overlapping area and the first orthographic projection of the polarizing layer 13 is made greater than the distance between the first overlapping area and the first orthographic projection of the polarizing layer 13. In this way, the distance between the area with the potential difference and the polarizing layer 13 can be made farther, which extends the migration path of the ions in the polarizing layer 13, making it difficult for the ions in the polarizing layer 13 to migrate to the area with the potential difference, thereby reducing the risk of electrochemical corrosion in the area with the potential difference, thereby improving the problem of display abnormality of the display panel 10 in reliability testing.

[0244] Fifth, refer to Fig.10 As shown, an embodiment of the present application provides a display device 1, comprising a display panel 10 in any embodiment of the first aspect or the second aspect.

[0245] The display device 1 can be a laptop computer, a mobile phone, a wireless device, a personal digital assistant (PDA), a handheld or portable computer, a GPS receiver / navigator, a camera, an MP4 video player, a camcorder, a game console, a watch, a clock, a calculator, a TV monitor, a flat-panel display, a computer monitor, a car display (e.g., an odometer display, etc.), a navigator, a cockpit controller and / or display, a display of a camera view (e.g., a display of a rearview camera in a vehicle), an electronic photo, an electronic billboard or sign, a projector, etc.

[0246] In the case of using “including”, “having”, and “comprising” described herein, another component may be added unless a clear limiting term such as “only”, “consisting of”, etc. is used. Unless mentioned otherwise, a term in the singular form may include a plural form and should not be understood as being one in number.

[0247] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0248] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A display panel, characterized in that: include: substrate; An array film layer is provided on one side of the substrate; the array film layer comprises 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 provided in different layers 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, disposed on a side of the array film layer away from the substrate; Among them, the orthographic projection of at least one of the first signal lines on the substrate has a first overlapping area with the orthographic projection of the first potential line on the substrate, and has a second overlapping area with the orthographic projection of the second potential line on the substrate, the orthographic projection of the polarizing layer on the substrate is a first orthographic projection, and 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 distance between the first overlapping area and the first orthographic projection is smaller than the distance between the second overlapping area and the first orthographic 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 crosses both the first potential line and the second potential line; Optionally, the display panel further includes a binding pad, and 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 binding pad on the substrate.

3. The display panel according to claim 1, characterized in that: The display panel further comprises a barrier structure, which is arranged on a side of the first potential line, the second potential line and the first signal line away from the substrate in the thickness direction of the substrate, and the film layer where the barrier structure is located is located between the polarizing layer and the substrate; The orthographic projection of the barrier structure on the substrate covers the first overlapping area and / or the second overlapping area; 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 orthographic projection of the barrier structure on the substrate covers the orthographic 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, an orthographic projection of the blocking structure on the substrate at least partially overlaps with an orthographic projection of an edge of the polarizing layer close to the first potential line on the substrate; Optionally, the array film layer includes a first circuit, and the first circuit includes the first potential line and the second potential line; The orthographic projection of the blocking structure on the substrate covers the orthographic projection of the first circuit on the substrate.

4. The display panel according to claim 3, characterized in that: The material of the barrier structure includes inorganic material; Optionally, the material of the barrier structure includes metal material; Optionally, the barrier structure is connected to a fixed potential or the barrier structure is in a floating state; Optionally, the barrier structure comprises at least one inorganic film layer; Optionally, the barrier structure includes a first inorganic film layer and a second inorganic film layer, the second inorganic film layer is arranged on a 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, characterized in that: The display panel further comprises a touch layer group disposed between the array film layer and the polarizing layer; the barrier structure comprises 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 which are stacked; the barrier structure includes a first inorganic film layer, and the first inorganic film layer and the first touch conductive layer are arranged in the same layer and with the same material; Optionally, the first inorganic film layer is connected to the first touch conductive layer; Optionally, the touch layer group also includes a second insulating layer and a third insulating layer, and 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 in sequence in a direction away from the substrate; the barrier structure includes a second inorganic film layer, and the second inorganic film layer is arranged on the same layer as the second insulating layer, the first insulating layer or the third insulating layer.

6. The display panel according to claim 1, characterized in that: The array film layer comprises a first conductive layer, a fourth insulating layer, a second conductive layer, a fifth insulating layer and a third conductive layer stacked in a direction away from the substrate; the number of the first signal lines is multiple, and the first potential line and the second potential line 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 the first conductive layer or the second conductive layer; Optionally, the array film layer further includes a planarization layer disposed on a side of the third conductive layer away from the substrate, and the planarization layer is in contact with the third conductive layer.

7. The display panel according to claim 1, characterized in that: The first potential line and / 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; Optionally, at least one of the first potential line, the second potential line and the first signal line comprises the element molybdenum.

8. The display panel according to claim 1, characterized in that: The display panel has a display area and a frame area adjacent to the display area; the first potential line, the second potential line and at least part of the first signal line are located in the frame area, and at least part of the polarizing layer is located in the display area; Optionally, the display panel further comprises a cured adhesive layer, which is disposed on a side of the array film layer away from the substrate and located in the frame area; a gap is provided between an edge of a side of the polarizing layer close to the cured adhesive layer and the cured adhesive layer; Optionally, in the second direction or the first direction, the first potential line, the second potential line and at least part 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 the first direction and the second direction are both perpendicular to the thickness direction of the substrate; Optionally, the display panel further includes a light emitting device layer, and the light emitting device layer is disposed between the array film layer and the polarizing layer and is located in the display area.

9. The display panel according to claim 1, characterized in that: The array film layer includes a first circuit, and the first circuit includes the first potential line and the second potential line; The first signal line is a source signal line for transmitting a data voltage, and the first circuit is an anti-static circuit; Optionally, the first circuit includes: a first transistor, wherein a first electrode and a control electrode of the first transistor are connected to the first potential line; a second transistor, wherein a first electrode and a control electrode of the second transistor are connected to the second electrode of the first transistor; a third transistor, a first electrode and a control electrode of the third transistor being connected to the second electrode of the second transistor and connected to the first signal line; and A fourth transistor, wherein a first electrode and a control electrode of the fourth transistor are connected to the second electrode of the third transistor, and a second electrode 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 provided on one side of the substrate; the array film layer comprises 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 provided in different layers 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, disposed on a side of the array film layer away from the substrate; The orthographic projection of at least one of the first signal lines on the substrate has a first overlapping region with the orthographic projection of the first potential line on the substrate, and has a second overlapping region with the orthographic projection of the second potential line on the substrate, and the orthographic projection of the polarizing layer on the substrate is the first orthographic projection; The orthographic projections of the first potential line and the second potential line on the substrate are arranged at intervals from the first orthographic projection; the distribution density of potassium ions in 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 smaller than the absolute value of the potential difference between the second potential line and the first signal line; the distance between the first overlapping area and the first orthographic projection is smaller than the distance between the second overlapping area 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, characterized in that: The display panel further comprises a barrier structure, which is arranged on a side of the first potential line, the second potential line and the first signal line away from the substrate in the thickness direction of the substrate, and the film layer where the barrier structure is located is located between the polarizing layer and the substrate; the material of the barrier structure comprises an inorganic material; The orthographic projection of the barrier structure on the substrate covers the first overlapping area and / or the second overlapping area; 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 orthographic projection of the barrier structure on the substrate covers the orthographic projection of the second potential line on the substrate; Optionally, an orthographic projection of the blocking structure on the substrate covers an orthographic projection of the first signal line on the substrate.

13. The display panel according to claim 12, characterized in that: The display panel further comprises a touch layer group disposed between the array film layer and the polarizing layer; the barrier structure comprises 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 which are stacked; the barrier structure includes a first inorganic film layer, and the first inorganic film layer and the first touch conductive layer are arranged in the same layer and made of the same material; Optionally, the first inorganic film layer is connected to the first touch conductive layer; Optionally, the touch layer group also includes a second insulating layer and a third insulating layer, and 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 in sequence in a direction away from the substrate; the barrier structure includes a second inorganic film layer, and the second inorganic film layer and the third insulating layer are arranged on the same layer.

14. The display panel according to claim 10, characterized in that: The display panel has a display area and a frame area adjacent to the display area; the first potential line, the second potential line and at least part of the first signal line are located in the frame area, and at least part of the polarizing layer is located in the display area; Optionally, the display panel further comprises a cured adhesive layer, which is disposed on a side of the array film layer away from the substrate and located in the frame area; a gap is provided between an edge of a side of the polarizing layer close to the cured adhesive layer and the cured adhesive layer; Optionally, in the second direction or the first direction, the first potential line, the second potential line and at least part 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 the first direction and the second direction are both perpendicular to the thickness direction of the substrate; Optionally, the display panel further includes a light emitting device layer, and the light emitting device layer is disposed between the array film layer and the polarizing layer and is located in the display area.

15. The display panel according to claim 11, characterized in that: The potentials of the first potential line and the second potential line are both greater than 0 or less than 0; 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; Optionally, the first potential line is a power 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 for transmitting a data voltage.

16. The display panel according to claim 10, 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 area and the first orthographic projection is less than the distance between the second overlapping area and the first orthographic projection; Optionally, the array film layer includes a first circuit, and the first circuit includes the first potential line and the second potential line; The first signal line is a source signal line for transmitting a data voltage, and the first circuit is an anti-static circuit.

17. The display panel according to claim 10, 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; A distance between the first overlapping region and the first orthographic projection is smaller than a distance between the second overlapping region and the first orthographic projection.

18. The display panel according to claim 10, characterized in that: The first potential line and / 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; Optionally, at least one of the first potential line, the second potential line and the first signal line comprises the element molybdenum.

19. 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 and the first signal line are arranged 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; A polarizing layer, disposed on a 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; A blocking structure, in the thickness direction of the substrate, the blocking structure is arranged on the side of the second potential line and the first signal line away from the substrate, and the film layer where the blocking structure is located is located between the polarizing layer and the substrate; the material of the blocking structure includes inorganic material; the orthographic projection of the blocking structure on the substrate covers the second overlapping area.

20. The display panel according to claim 19, characterized in that: The display panel further comprises a touch layer group disposed between the array film layer and the polarizing layer; the barrier structure comprises 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 which are stacked; the barrier structure includes a first inorganic film layer, and the first inorganic film layer and the first touch conductive layer are arranged in the same layer and made of the same material; Optionally, the first inorganic film layer is connected to the first touch conductive layer; Optionally, the touch layer group further includes a second insulating layer and a third insulating layer, and 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 in sequence in a direction away from the substrate; the barrier structure includes a second inorganic film layer, and the second inorganic film layer is arranged 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, and 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 arranged 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 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 is arranged at an interval from the first orthographic projection; the blocking structure is arranged on a 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.

21. A display device, characterized in that: Comprising a display panel as described in any one of claims 1-20.

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