Display panel and display device

Abstract

This application discloses a display panel and a display device. The display panel includes an array substrate, a mating substrate, and a frame adhesive. The display panel includes a display area and a non-display area. In the non-display area, the array substrate includes a substrate, a first metal layer, an insulating layer, a second metal layer, a passivation layer, a transparent conductive layer, and an alignment film disposed sequentially. The non-display area includes an etched area, a spacer area, and a conductive area. The first metal layer includes a first metal trace in the conductive area and a second metal trace in the etched area. The second metal layer includes a metal strip. The passivation layer has multiple first vias and second vias. The first vias expose the first metal layer, and the second vias expose the second metal layer. The transparent conductive layer extends from the conductive area to the etched area and is electrically connected to the first metal trace in the conductive area at least through the first via. In the etched area, it contacts the second metal trace through the first via and the metal strip through the second via. This design solves the problem of easy corrosion of the metal traces in the display panel.

Description

Technical Field

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

[0002] TFT-LCD (Thin Film Transistor Liquid Crystal Display) holds an unshakeable position in the field of large, medium, and small flat panel displays due to the following characteristics: low voltage and low power consumption; flat panel structure; passive display (no glare, no eye strain, independently controlled dedicated light source for adjustable brightness); large display information capacity; easy to colorize; no electromagnetic radiation; and long lifespan. As consumer demands continue to rise, TFT-LCD products need constant upgrades. For example, TFT-LCD products are moving towards narrower bezel designs, and narrow or bezel-less designs place even stricter requirements on the high temperature and humidity testing of the LCD panel.

[0003] For narrow-bezel or borderless products, the alignment film extends to the frame adhesive coating area and beyond the frame adhesive boundary due to the narrow bezel. Because the bonding ability between the alignment film and the frame adhesive is poor, and the moisture resistance of the alignment film is weakened under high temperature and high humidity conditions, moisture can easily enter the display panel through the bonding area between the alignment film and the frame adhesive during high temperature and high humidity tests. This can lead to corrosion of the metal traces and affect the performance of the display panel. Summary of the Invention

[0004] This application provides a display panel and display device to solve the problem that the metal traces of narrow-bezel or borderless display panels are easily corroded in the related art.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is: to provide a display panel, including an array substrate and a counter substrate disposed opposite to each other, and a frame adhesive connecting the array substrate and the counter substrate; the display panel includes a display area and a non-display area disposed around the periphery of the display area;

[0006] In the non-display area, the array substrate includes a substrate, a first metal layer, an insulating layer, a second metal layer, a passivation layer, a transparent conductive layer, and an alignment film disposed sequentially.

[0007] The non-display area includes an etched area, a spacer area, and a conductive area arranged sequentially, wherein the etched area is located on the side of the spacer area away from the display area;

[0008] The first metal layer includes a first metal trace and a second metal trace spaced apart, the first metal trace being disposed in the conductive area and the second metal trace being disposed in the etched area;

[0009] The second metal layer includes at least one metal strip, the metal strip being located at least in the corrosion zone, and within the corrosion zone, the projection portion of the at least one metal strip on the first metal layer covers the second metal trace;

[0010] The passivation layer is provided with a plurality of first vias and a plurality of second vias at intervals; the first vias penetrate the passivation layer and the insulating layer and expose a portion of the first metal layer; the second vias penetrate the passivation layer and expose a portion of the second metal layer;

[0011] The transparent conductive layer extends from the conductive area to the etched area, and within the conductive area, the transparent conductive layer is electrically connected to the first metal trace at least through the first via; within the etched area, the transparent conductive layer is in contact with the second metal trace through the first via, and is in contact with the metal strip through the second via.

[0012] In some embodiments, in the corroded area, at least a portion of the first via penetrates the passivation layer and the insulating layer, and exposes the side of the metal strip and the top surface of the second metal trace;

[0013] The transparent conductive layer extends into the first via and is electrically connected to the metal strip and the second metal trace, respectively.

[0014] In some embodiments, the conductive area is also provided with the metal strip;

[0015] Within the conductive area, the projection of the metal strip onto the first metal layer covers the first metal trace.

[0016] In some embodiments, within the conductive region, the first via penetrates the passivation layer and the insulating layer, and exposes only the top surface of the first metal trace; the transparent conductive layer extends into the first via and is electrically connected only to the first metal trace.

[0017] Furthermore, within the conductive area, the second via penetrates the passivation layer and exposes only a portion of the metal strip, while the transparent conductive layer extends into the second via and contacts the metal strip.

[0018] In some embodiments, the number of second vias in the conductive region is less than the number of second vias in the etched region;

[0019] And / or, the area of ​​the second via in the conductive region is smaller than the area of ​​the second via in the corroded region;

[0020] And / or, the number of first vias in the conductive area is less than the number of first vias in the etched area;

[0021] And / or, the area of ​​the first via in the conductive region is smaller than the area of ​​the first via in the corroded region.

[0022] In some embodiments, both the conductive area and the corrosion area are provided with multiple metal strips;

[0023] Within the corrosion zone, multiple metal strips are spaced apart from each other, and multiple metal strips are distributed in an array;

[0024] And / or, within the conductive area, a plurality of the metal strips are spaced apart from each other, and a plurality of the metal strips are distributed in an array.

[0025] In some embodiments, both the conductive area and the corrosion area are provided with multiple metal strips;

[0026] Within the corrosion zone, any number of the plurality of metal strips are interconnected;

[0027] And / or, within the conductive area, any number of the plurality of metal strips are interconnected.

[0028] In some embodiments, a plurality of the metal strips are provided within the corrosion zone;

[0029] Within the corrosion zone, the number of second vias on the side furthest from the spacer area is greater than the number of second vias on the side closest to the spacer area.

[0030] And / or, the number of first vias on the side away from the interval area is greater than the number of first vias on the side closer to the interval area;

[0031] And / or, the area of ​​the second via on the side away from the interval region is greater than the area of ​​the second via on the side closer to the interval region;

[0032] And / or, the area of ​​the first via on the side away from the interval region is greater than the area of ​​the first via on the side closer to the interval region.

[0033] In some embodiments, the second metal trace is a single metal line that meanders along the edge of the display panel.

[0034] In some embodiments, the first metal trace is cross-shaped, and the first metal trace includes a plurality of vertical traces spaced apart along a first direction and a plurality of horizontal traces spaced apart along a second direction, with the plurality of horizontal traces intersecting the plurality of vertical traces in a one-to-one correspondence.

[0035] The second metal trace includes multiple long lines and multiple short lines. The multiple long lines are perpendicular to the side of the display panel and are spaced apart from each other. The multiple short lines are connected to the ends of two adjacent long lines.

[0036] The width of the second metal trace is smaller than the width of the first metal trace; and / or,

[0037] In the first direction, the distance between two adjacent long lines is less than the distance between two adjacent vertical lines.

[0038] In some embodiments, the alignment film covers the side of the transparent conductive layer away from the substrate and extends into the first via and the second via, respectively;

[0039] The alignment film is made of polyimide; the transparent conductive layer is made of indium tin oxide.

[0040] To solve the above-mentioned technical problems, another technical solution adopted in this application is: to provide a display device, comprising:

[0041] Any of the display panels described above;

[0042] A backlight module is disposed on one side of the display panel and is used to provide backlight for the display panel.

[0043] The beneficial effects of this application are as follows: Unlike the prior art, this application discloses a display panel and a display device. The display panel includes an array substrate and a counter substrate disposed opposite each other, and a frame adhesive connecting the array substrate and the counter substrate. The display panel includes a display area and a non-display area disposed around the display area. In the non-display area, the array substrate includes a substrate, a first metal layer, an insulating layer, a second metal layer, a passivation layer, a transparent conductive layer, and an alignment film disposed sequentially. The non-display area includes an etched area, a spacer area, and a conductive area disposed sequentially, with the etched area located on the side of the spacer area away from the display area. The first metal layer includes a first metal trace and a second metal trace disposed at intervals, with the first metal trace disposed in the conductive area and the second metal trace disposed in the etched area. The second metal layer includes at least one metal strip, which is located at least in the corrosion zone. Within the corrosion zone, the projection portion of the metal strip onto the first metal layer covers the second metal trace. The passivation layer is provided with a plurality of first vias and a plurality of second vias at intervals. The first vias penetrate the passivation layer and the insulating layer and expose a portion of the first metal layer. The second vias penetrate the passivation layer and expose a portion of the second metal layer. The transparent conductive layer extends from the conductive zone to the corrosion zone. Within the conductive zone, the transparent conductive layer is electrically connected to the first metal trace at least through the first via. Within the corrosion zone, the transparent conductive layer is in contact with the second metal trace through the first via and with the metal strip through the second via. With the above configuration, the first metal trace itself is energized. The voltage of the first metal trace in the conductive area can be conducted through the transparent conductive layer to the metal strip and the second metal trace in the etched area. This allows external moisture to enter the display panel through the alignment film and firstly contact the metal strip exposed at the second via and the second metal trace exposed at the first via in the etched area, resulting in an electrochemical reaction that erodes the metal strip and the second metal trace. The second metal layer and the second metal trace at the edge of the array substrate act as sacrificial metals to consume most of the moisture. Since the first and second metal traces are separated by the gap, the corrosion of the second metal trace will not affect the first metal trace. This effectively avoids the corrosion of the first metal trace by moisture and its impact on other components in the display area. It effectively solves the problem of easy corrosion of metal traces in narrow-bezel or borderless display panels in related technologies and improves the performance of the display panel. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0045] Figure 1This is a top view of an embodiment of the display panel provided in the first embodiment of this application;

[0046] Figure 2 yes Figure 1 A partially enlarged schematic diagram of area S of the provided display panel according to the first embodiment;

[0047] Figure 3 yes Figure 2 A schematic diagram of the A1-A2 cross-section of the provided display panel;

[0048] Figure 4 yes Figure 2 A schematic diagram of the display panel's cross-section (A3-A4) is provided.

[0049] Figure 5 yes Figure 1 A partially enlarged schematic diagram of area S of the provided display panel according to the second embodiment;

[0050] Figure 6 yes Figure 1 A partially enlarged schematic diagram of area S of the provided display panel in the third embodiment;

[0051] Figure 7 yes Figure 1 A partially enlarged schematic diagram of area S of the provided display panel in the fourth embodiment;

[0052] Figure 8 This is a schematic diagram of an embodiment of the display device provided in the second embodiment of this application.

[0053] Icon labels:

[0054] 300, Display device; 200, Backlight; 100, Display panel; 1, Array substrate; 11, Substrate; 12, First metal layer; 121, First metal trace; 122, Second metal trace; 13, Insulating layer; 14, Second metal layer; 141, Metal strip; 15, Passivation layer; 151, First via; 152, Second via; 16, Transparent conductive layer; 17, Alignment film; 2, Alignment substrate; 3, Frame adhesive; 4, Circuit board; 5, Etched area; 6, Spacing area; 7, Conductive area; X, Display area; F, Non-display area; B, Bonding area; L1, First direction; L2, Second direction. Detailed Implementation

[0055] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0056] The terms "first," "second," and "third" used in the embodiments of this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0057] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0058] See Figures 1 to 7 , Figure 1 This is a top view schematic diagram of an embodiment of the display panel provided in the first embodiment of this application. Figure 2 yes Figure 1 A partially enlarged schematic diagram of area S of the provided display panel according to the first embodiment. Figure 3 yes Figure 2 The provided schematic diagram shows the cross-sectional view of the display panel along line A1-A2. Figure 4 yes Figure 2 The provided diagram shows a cross-sectional view of the display panel along lines A3-A4. Figure 5 yes Figure 1 A partially enlarged schematic diagram of area S of the provided display panel in the second embodiment. Figure 6 yes Figure 1 A partially enlarged schematic diagram of area S of the provided display panel in the third embodiment. Figure 7 yes Figure 1 A partially enlarged schematic diagram of area S of the provided display panel according to the fourth embodiment.

[0059] See Figures 1 to 7The first embodiment of this application provides a display panel 100, which includes an array substrate 1 and a counter substrate 2 disposed opposite to each other, and a frame adhesive 3 connecting the array substrate 1 and the counter substrate 2. The display panel 100 includes a display area X and a non-display area F disposed around the display area X. Specifically, as shown... Figure 1 As shown, in one embodiment, the size of the array substrate 1 is larger than the size of the counter substrate 2, and one side of the array substrate 1 protrudes from the counter substrate 2 to form a bonding area B, which is used to bond other components such as the circuit board 4.

[0060] See Figures 2 to 7 In the non-display area F, the array substrate 1 includes a substrate 11, a first metal layer 12, an insulating layer 13, a second metal layer 14, a passivation layer 15, a transparent conductive layer 16, and an alignment film 17 stacked sequentially. The insulating layer 13 is disposed between the first metal layer 12 and the second metal layer 14, insulating the first metal layer 12 and the second metal layer 14.

[0061] For details, see Figures 2 to 7 The non-display area F includes an etched area 5, a spacer area 6 and a conductive area 7 arranged sequentially. The spacer area 6 is located between the etched area 5 and the conductive area 7. The etched area 5 is located on the side of the spacer area 6 away from the display area X. The etched area 5 is located near the edge of the array substrate 1.

[0062] See Figures 2 to 7 The first metal layer 12 includes a first metal trace 121 and a second metal trace 122 spaced apart. That is, the first metal trace 121 and the second metal trace 122 are located on the same metal layer. The first metal trace 121 is located in the conductive area 7, and the second metal trace 122 is located in the etched area 5. The first metal trace 121 and the second metal trace 122 are separated by a gap area 6, and neither the first metal trace 121 nor the second metal trace 122 is located within the gap area 6. In some embodiments, the first metal layer 12 can be a VCOM trace of the display panel 100, meaning the VCOM trace can be divided into two spaced parts. The second metal trace 122 within the etched area 5 serves as a sacrificial metal, and the first metal trace 121 within the conductive area 7 serves as the original VCOM trace to achieve the corresponding function.

[0063] See Figures 2 to 7 The second metal layer 14 includes at least one metal strip 141, which is located at least in the corrosion zone 5. Specifically, the metal strip 141 may be located only in the corrosion zone 5, or it may be located in both the corrosion zone 5 and the conductive zone 7. In the corrosion zone 5, the projection portion of the metal strip 141 on the first metal layer 12 covers the second metal trace 122. The metal strip 141 is located on top of the second metal trace 122 and is isolated by the insulating layer 13.

[0064] See Figures 2 to 7 The passivation layer 15 is provided with a plurality of first vias 151 and a plurality of second vias 152 at intervals. The first vias 151 penetrate the passivation layer 15 and the insulating layer 13 and expose a portion of the first metal layer 12. Specifically, the etched region 5 and the conductive region 7 are both provided with first vias 151. The first vias 151 in the etched region 5 penetrate the passivation layer 15 and the insulating layer 13 and expose a portion of the second metal traces 122. Specifically, the first vias 151 in the etched region 5 expose a portion of the second metal traces 122 away from the surface of the substrate 11. The first vias 151 in the conductive region 7 penetrate the passivation layer 15 and the insulating layer 13 and expose a portion of the first metal traces 121. Specifically, the first vias 151 in the conductive region 7 expose a portion of the first metal traces 121 away from the surface of the substrate 11. That is, the first via 151 is provided corresponding to the first metal trace 121 and the second metal trace 122 of the first metal layer 12, and the first via 151 is misaligned with the metal strip 141 of the second metal layer 14.

[0065] The second via 152 penetrates the passivation layer 15 and exposes a portion of the second metal layer 14. Since the second metal layer 14 includes at least one metal strip 141, and the metal strip 141 is located at least within the etched region 5, the second via 152 is also located at least within the etched region 5. Specifically, the metal strip 141 may be located only within the etched region 5, and the second via 152 may also be located only within the etched region 5; the metal strip 141 may also be simultaneously located within the etched region 5 and the conductive region 7, and the second via 152 may be simultaneously located within the etched region 5 and the conductive region 7. Specifically, the second via 152 penetrates the passivation layer 15 and exposes a portion of the second metal layer 14. Specifically, the second via 152 exposes the surface of the metal strip 141 away from the substrate 11. That is, the second via 152 is provided corresponding to the metal strip 141 of the second metal layer 14.

[0066] See Figures 2 to 7 The transparent conductive layer 16 extends from the conductive region 7 to the etched region 5. That is, a transparent conductive layer 16 is provided in the conductive region 7, the spacer region 6, and the etched region 5, and the transparent conductive layers 16 in the conductive region 7 and the etched region 5 are connected. Within the conductive region 7, the transparent conductive layer 16 is electrically connected to the first metal trace 121 at least through the first via 151. Specifically, the first metal trace 121 within the conductive region 7 is itself energized and can be a metal signal line of the display panel 100. The transparent conductive layer 16 within the conductive region 7 contacts the first metal trace 121 through the first via 151 to achieve electrical connection. Specifically, in some embodiments, the material of the transparent conductive layer 16 can be indium tin oxide (ITO); in other embodiments, the transparent conductive layer 16 can also be made of other conductive materials.

[0067] Within the corrosion zone 5, the transparent conductive layer 16 is disposed in contact with the second metal trace 122 through the first via 151, and in contact with the metal strip 141 through the second via 152. Specifically, the transparent conductive layer 16 in the corrosion zone 5 is in contact with the second metal trace 122 exposed by the first via 151 through the first via 151, and in contact with the second metal layer 14, i.e., the metal strip 141, exposed by the second via 152, through the second via 152, so that the voltage of the first metal trace 121 in the conductive zone 7 is conducted through the transparent conductive layer 16 to the second metal trace 122 and the metal strip 141 in the corrosion zone 5, respectively, so as to facilitate the electrical connection between the second metal trace 122 and the metal strip 141 and the transparent conductive layer 16.

[0068] See Figures 2 to 7 In some embodiments, the alignment film 17 covers the side of the transparent conductive layer 16 away from the substrate 11. Specifically, the alignment film 17 covers the surface of the transparent conductive layer 16 away from the substrate 11 and extends into the first via 151 and the second via 152, respectively. The display panel 100 is a narrow-bezel or borderless display panel 100.

[0069] It is understood that in this embodiment, the first metal layer 12 of the array substrate 1 in the non-display area F is configured to include a first metal trace 121 and a second metal trace 122 spaced apart from each other. The second metal trace 122 is disposed in the etched area 5 located outside the conductive area 7. The etched area 5 is disposed near the edge of the array substrate 1, and a second metal layer 14 including at least one metal strip 141 is disposed in at least the etched area 5. A portion of the first metal layer 12 is exposed by a first via 151, a portion of the second metal layer 14 is exposed by a second via 152, and a transparent conductive layer 16 extends from the conductive area 7 into the etched area 5. The transparent conductive layer 16 is electrically connected to the first metal trace 121 in the conductive area 7 through the first via 151, and to the first metal trace 121 in the etched area 5 through the first via 151. A via 151 is set to contact the second metal trace 122 and is set to contact the metal strip 141 through the second via 152. The first metal trace 121 itself is energized. The voltage of the first metal trace 121 in the conductive area 7 can be conducted through the transparent conductive layer 16 to the metal strip 141 and the second metal trace 122 in the corrosion area 5. When high temperature and high humidity test is performed or the display panel 100 is working normally, when external moisture enters the display panel 100 through the alignment film 17, it can first contact the metal strip 141 at the position of the second via 152 and the second metal trace 122 at the position of the first via 151 in the corrosion area 5, and an electrochemical reaction occurs to corrode the metal strip 141 and the second metal trace 122 and consume the moisture.

[0070] The second metal layer 14 and the second metal trace 122 at the edge of the array substrate 1 serve as sacrificial metals to consume most of the moisture. Since the first metal trace 121 and the second metal trace 122 are separated by the spacing area 6, the corrosion of the second metal trace 122 will not affect the first metal trace 121. This effectively avoids the corrosion of the first metal trace 121 by moisture and its impact on other components and metal traces in the display area X. It also prevents corrosion from entering the display area X along the second metal trace 122, thus preventing metal corrosion in the display area X during high temperature and humidity tests, which can cause abnormal images. Through the above settings, the problem of easy corrosion of metal traces in narrow-bezel or borderless display panels in related technologies is effectively solved. This also solves the problem of abnormal images caused by corrosion in narrow-bezel or borderless display panels during high temperature and humidity tests or normal display operation, improving the corrosion resistance of the narrow-bezel or borderless display panel 100 and enhancing its performance. Meanwhile, the first metal trace 121 and the second metal trace 122 and metal strip 141 in the corrosion area 5 are respectively connected by the transparent conductive layer 16. After the voltage of the first metal trace 121 is conducted to the second metal trace 122 and metal strip 141 through the transparent conductive layer 16, the heat generated by the second metal trace 122 and metal strip 141 can accelerate the consumption of water vapor. The heat generated by the second metal trace 122 can further heat the metal strip 141 located on top of it, thereby further accelerating the electrochemical reaction between the metal strip 141, the transparent conductive layer 16 and water vapor, thereby further increasing the water vapor consumption rate and more effectively preventing water vapor from spreading to the display area X side and affecting the first metal trace 121, thus further improving the display performance.

[0071] Specifically, in some embodiments, the alignment film 17 is at least partially located between the frame adhesive 3 and the substrate 11, that is, the alignment film 17 extends to the coating position of the frame adhesive 3. The material of the alignment film 17 is PI (Polyimide). The display panel 100 can be a narrow-bezel or frameless display panel. Since the bezel of the display panel 100 is narrow, when the alignment film 17 is coated using a coating equipment with lower precision, the alignment film 17 easily spreads to the connection position between the frame adhesive 3 and the array substrate 1 in the non-display area F and exceeds the boundary of the frame adhesive 3. That is, the alignment film 17 easily spreads to the side of the frame adhesive 3 away from the display area X. The alignment film 17 is a low-hygroscopic material. Under high temperature and high humidity conditions, the moisture resistance of the alignment film 17 weakens. That is, the moisture absorption capacity of the alignment film 17 is enhanced in the high temperature and high humidity environment, and it easily absorbs water vapor. When the display panel 100 is subjected to high temperature and high humidity testing, water vapor easily comes into contact with the alignment film 17 and enters the display panel 100. In this embodiment, even if moisture enters the display panel 100 along the alignment film 17, it will only corrode the second metal trace 122 and the second metal layer 14 at the positions of the first via 151 and the second via 152 at the edge of the non-display area F, due to an electrochemical reaction with the metal strip 141 of the second metal trace 122 and the second metal layer 14. The first metal trace 121 and the second metal trace 122 are separated by the spacing area 6. The first metal trace 121 and the other traces in the display area X will not be corroded. By sacrificing only the second metal trace 122 and the second metal layer 14, the corrosion resistance of the narrow bezel or borderless display panel 100 can be improved, and the display performance of the display panel 100 can be improved.

[0072] Therefore, for narrow-bezel or borderless display panels 100, by setting the array substrate 1 to the above structure, the alignment film 17 can be coated using a low-precision coating equipment. Even if the alignment film 17 spreads to the coating position of the frame adhesive 3, it will not have a significant impact on the corrosion resistance of the narrow-bezel or borderless display panel 100. This can effectively reduce the precision requirements of the alignment film 17 coating equipment, reduce production costs, and optimize and improve the design. It solves the limitation of large fluctuations in the coating of alignment film 17 for narrow-bezel or borderless products using PI Inject equipment, and realizes that the alignment film 17 can be coated using PI Inject equipment for narrow-bezel or borderless products.

[0073] Specifically, in some embodiments, the display area X of the array substrate 1 is also provided with other structures such as a driving circuit layer (not shown) and a thin film transistor layer (not shown). Both the driving circuit layer and the thin film transistor layer include other metal traces. By providing a second metal layer 14 and a second metal trace 122 spaced apart from the first metal trace 121 at the edge position of the non-display area F of the array substrate 1 (within the etched area 5), ​​the first metal trace 121 in the conductive area 7 can be protected from corrosion by sacrificing the second metal trace 122 and the second metal layer 14. At the same time, the remaining metal traces inside the driving circuit layer and the thin film transistor layer in the display area X can also be effectively protected from corrosion, which is beneficial to improving the display performance of the display panel 100.

[0074] Specifically, within the corrosion zone 5, the projection of the metal strip 141 onto the first metal layer 12 partially covers the second metal trace 122. That is, the projection of the second metal layer 14 onto the first metal layer 12 within the corrosion zone 5 cannot completely cover the second metal trace 122, so that the first via 151 within the corrosion zone 5 can penetrate the passivation layer 15 and the insulating layer 13 and expose part of the second metal trace 122, facilitating the contact between the transparent conductive layer 16 within the corrosion zone 5 and the second metal trace 122 through the first via 151. After the transparent conductive layer 16 is electrically connected to the first metal trace 121 through the first via 151 in the conductive area 7, the voltage of the first metal trace 121 can be conducted through the transparent conductive layer 16 to the second metal trace 122 in the corrosion area 5. Thus, when water vapor enters the corrosion area 5, it can undergo an electrochemical reaction with the second metal trace 122 at the first via 151 to consume the water vapor. After the voltage of the first metal trace 121 is conducted to the second metal trace 122, the heat generated by the second metal trace 122 can heat the metal strip 141 located on top of it, thereby further accelerating the consumption of water vapor and increasing the water vapor consumption rate. The above arrangement avoids the projection of the second metal layer 14 onto the first metal layer 12 completely covering the second metal trace 122, which would prevent the second metal trace 122 from being exposed through the first via 151 through the passivation layer 15 and the insulating layer 13. Consequently, the transparent conductive layer 16 cannot contact the second metal trace 122 through the first via 151, making it difficult to conduct the voltage of the first metal trace 121 to the second metal trace 122. Consequently, it is difficult for water vapor, the transparent conductive layer 16, and the second metal trace 122 to undergo an electrochemical reaction at the first via 151, making it difficult for the second metal trace 122 to consume water vapor at the location of the first via 151.

[0075] Specifically, in this embodiment, the voltage of the first metal trace 121 in the conductive region 7 is conducted through the transparent conductive layer 16 to the second metal trace 122 in the first via 151 and the second metal layer 14 (i.e., metal strip 141) in the second via 152 within the etched region 5. Since the roughness at the locations of the first via 151 and the second via 152 is greater than that at other flat locations, the contact resistance at the first via 151 and the second via 152 is greater than that at flat locations. The transparent conductive layer 16 interacts with the second metal trace 122 and the metal strip, respectively. The heat generated at the contact points of the first via 151 and the second via 152 is greater, making it easier for moisture to concentrate at the first via 151 and the second via 152. The transparent conductive layer 16 / moisture / second metal trace 122 and the transparent conductive layer 16 / moisture / metal strip 141 will form an electrochemical reaction at high temperature, causing the second metal trace 122 and the metal strip 141 to be corroded. In this way, most of the moisture is consumed at the first via 151 and the second via 152, which is more conducive to protecting the first metal trace 121 from corrosion.

[0076] See Figures 2 to 4 In some embodiments, in the corrosion zone 5, at least a portion of the first via 151 penetrates the passivation layer 15 and the insulating layer 13, exposing the side surface of the metal strip 141 and the top surface of the second metal trace 122. Specifically, as... Figure 3 As shown, within the corrosion zone 5, in the A1-A2 section, the rightmost first via 151 penetrates the passivation layer 15 and the insulating layer 13, simultaneously exposing the side of the metal strip 141 and the top surface of a portion of the second metal trace 122. A transparent conductive layer 16 extends into the first via 151 within the corrosion zone 5, and the transparent conductive layer 16 is electrically connected to the metal strip 141 and the second metal trace 122 within the first via 151. Specifically, the transparent conductive layer 16 contacts the side of the metal strip 141 and the top surface of the second metal trace 122 within the first via 151. That is, in this embodiment, at least a portion of the first via 151 exists within the corrosion zone 5, allowing the transparent conductive layer 16 to simultaneously contact the metal strip 141 and the second metal trace 122 within the first via 151, thereby achieving electrical connection.

[0077] It is understood that since the transparent conductive layer 16 extends from the conductive area 7 into the corrosion area 5, and the voltage of the first metal trace 121 in the conductive area 7 is conducted to the metal strip 141 and the second metal trace 122 in the corrosion area 5 by the transparent conductive layer 16, in this embodiment, by setting a portion of the first via 151, the transparent conductive layer 16 is electrically connected to the metal strip 141 and the second metal trace 122 in the same first via 151. In the same first via 151, the water vapor entering the first via 151 through the alignment film 17 can simultaneously undergo an electrochemical reaction with the metal strip 141 and the second metal trace 122, thereby facilitating further improvement of the water vapor consumption rate, accelerating water vapor consumption, more effectively preventing water vapor from diffusing to the display area X side, further improving the corrosion resistance of the display panel 100, and improving the display performance of the display panel 100.

[0078] In other embodiments, in the corrosion zone 5, the first via 151 may also penetrate the passivation layer 15 and the insulating layer 13, exposing only the top surface of the second metal trace 122. The second via 152 penetrates the passivation layer 15 and exposes only the top surface of the second metal layer 14, i.e., the metal strip 141. This allows the transparent conductive layer 16 to contact only the second metal trace 122 at the location of the first via 151. Thus, when moisture enters the first via 151, an electrochemical reaction occurs only between the transparent conductive layer 16, the moisture, and the second metal trace 122, resulting in corrosion of only the second metal trace 122 at the location of the first via 151. Similarly, at the location of the second via 152, the transparent conductive layer 16 contacts only the second metal layer 14, i.e., the metal strip 141. Thus, when moisture enters the second via 152, an electrochemical reaction occurs only between the transparent conductive layer 16, the moisture, and the metal strip 141, resulting in corrosion of only the metal strip 141 at the location of the second via 152. The specific arrangement of the first via 151 within the corrosion zone 5 can be designed as needed, and this application embodiment does not limit this.

[0079] See Figures 2 to 4 , Figure 6 and Figure 7 In some embodiments, the conductive area 7 is also provided with metal strips 141, that is, the second metal layer 14 includes multiple metal strips 141, and the metal strips 141 can be provided in both the conductive area 7 and the corrosion area 5. In the conductive area 7, the projection portion of the metal strips 141 on the first metal layer 12 covers the first metal trace 121, that is, the metal strips 141 in the conductive area 7 are provided on top of the first metal trace 121, and the first metal trace 121 and the metal strips 141 are insulated and spaced apart by the insulating layer 13.

[0080] Specifically, the projection of the second metal layer 14, i.e. the metal strip 141, on the first metal layer 12 within the conductive region 7 cannot completely cover the first metal trace 121. This allows the first via 151 within the conductive region 7 to penetrate the passivation layer 15 and the insulating layer 13 and expose part of the first metal trace 121. This also allows the transparent conductive layer 16 within the conductive region 7 to contact the first metal trace 121 through the first via 151. Thus, the voltage of the first metal trace 121 within the conductive region 7 is conducted by the transparent conductive layer 16 to the second metal trace 122 and the metal strip 141 within the corrosion region 5. As a result, when moisture enters the corrosion region 5, it can contact the second metal trace 122 at the first via 151 and the metal strip 141 at the second via 152, thereby causing an electrochemical reaction to consume the moisture. To avoid the projection of the second metal layer 14 onto the first metal layer 12 completely covering the first metal trace 121, which would prevent the first metal trace 121 from being exposed through the first via 151 by penetrating the passivation layer 15 and the insulating layer 13, and consequently prevent the transparent conductive layer 16 from contacting the first metal trace 121 through the first via 151, it would be difficult to conduct the voltage of the first metal trace 121 to the second metal trace 122 and the metal strip 141, thus affecting the consumption of moisture by the second metal trace 122 and the metal strip 141.

[0081] It is understandable that by simultaneously setting a second metal layer 14, i.e., a metal strip 141, in both the etched area 5 and the conductive area 7, when the second metal trace 122 and the metal strip 141 within the etched area 5 located at the edge of the array substrate 1 cannot completely consume the moisture, the moisture enters the conductive area 7. There, the metal strip 141 within the conductive area 7 can further react with the moisture to consume it, thereby further protecting the first metal trace 121 from corrosion. The simultaneous setting of the second metal layer 14, i.e., the metal strip 141, in both the etched area 5 and the conductive area 7 provides stronger protection for the first metal trace 121 and the remaining metal traces and components within the display area X, resulting in enhanced corrosion resistance of the display panel 100.

[0082] In some embodiments, the conductive region 7 is also provided with a metal strip 141. Within the conductive region 7, a first via 151 penetrates the passivation layer 15 and the insulating layer 13, and only exposes the top surface of the first metal trace 121. The transparent conductive layer 16 extends into the first via 151 and is electrically connected only to the first metal trace 121. That is, within the conductive region 7, the first via 151 only exposes the top surface of the first metal trace 121 and does not expose the side or top surface of the metal strip 141. The first via 151 is only provided corresponding to the first metal trace 121, and the first via 151 and the metal strip 141 are completely misaligned. For details, please refer to [reference needed]. Figure 4In the structure described above, the transparent conductive layer 16 is electrically connected to the first metal trace 121 only through the first via 151. Within the first via 151, the transparent conductive layer 16 does not contact the metal strip 141. In this embodiment, within the conductive area 7, the second via 152 penetrates the passivation layer 15 and exposes only a portion of the metal strip 141. Specifically, the second via 152 only exposes the top surface of the metal strip 141 and does not expose the first metal trace 121. The transparent conductive layer 16 extends into the second via 152 and is positioned in contact with the metal strip 141.

[0083] That is, a second metal layer 14, i.e., a metal strip 141, is provided in the conductive area 7. When both the first metal trace 121 and the metal strip 141 exist in the conductive area 7, the electrical connection between the transparent conductive layer 16 and the first metal trace 121 occurs only in the first via 151, and the electrical connection between the transparent conductive layer 16 and the second metal layer 14, i.e., the metal strip 141, occurs only in the second via 152. There is no first via 151 or second via 152 that would simultaneously electrically connect the transparent conductive layer 16 to both the metal strip 141 and the first metal trace 121. This design ensures that the first metal trace 121 and the metal strip 141 are insulated from each other. Corrosion of the metal strip 141 within the conductive area 7 will not affect the first metal trace 121. This prevents the transparent conductive layer 16 from being electrically connected to both the metal strip 141 and the first metal trace 121 simultaneously within the same first via 151 or second via 152. In such cases, if the metal strip 141 comes into contact with moisture and corrodes within the same via 151 or second via 152, the corrosion could extend to the first metal trace 121, leading to corrosion of the first metal trace 121. Through this design, the second metal layer 14, i.e., the metal strip 141, within the conductive area 7 further consumes moisture. This not only improves the corrosion resistance of the display panel 100 but also effectively prevents moisture from contacting and corroding the first metal trace 121, thus improving the performance of the display panel 100.

[0084] In this embodiment, by providing a second metal layer 14 including at least one metal strip 141, the second metal layer 14 can also serve to elevate the film structure of the array substrate 1. The second metal layer 14 can prevent the alignment film 17 from diffusing towards the edge of the display panel 100, effectively reducing the film thickness of the alignment film 17 at the edge of the display panel 100. At the same time, the second via 152 at the top of the second metal layer 14 can also serve to store the alignment film 17. This further ensures that during the diffusion of the alignment film 17 towards the edge of the display panel 100, most of the alignment film 17 is stored at the lower-lying location of the second via 152, further reducing the film thickness of the alignment film 17 at the edge of the display panel 100. This is beneficial for reducing the thickness of the display panel 100, improving the performance of the display panel 100, and broadening the application range of the display panel 100. Meanwhile, a second via 152 is provided above the second metal layer 14. The heat generated by the first metal trace 121 or the second metal trace 122 of the first metal layer 12 directly below the second metal layer 14 is used to preheat the metal strip 141 of the second metal layer 14. The heat generated by the first metal layer 12 accelerates the rate of electrochemical corrosion of the transparent conductive layer 16 / water vapor / metal strip 141 in the second via 152, which can further consume water vapor.

[0085] Specifically, in some embodiments, a second metal layer 14, i.e., a metal strip 141, is provided in both the corrosion zone 5 and the conductive zone 7. The number of second vias 152 in the conductive zone 7 is less than the number of second vias 152 in the corrosion zone 5, and / or the area of ​​the second vias 152 in the conductive zone 7 is less than the area of ​​the second vias 152 in the corrosion zone 5. It is understood that the etched area 5 is located outside the conductive area 7, and the etched area 5 is set closer to the edge of the array substrate 1. Compared with the second metal layer 14 and the first metal trace 121 in the conductive area 7, the second metal layer 14 and the second metal trace 122 in the etched area 5 come into contact with moisture first. By setting the number and / or area of ​​the second vias 152 in the etched area 5 to be greater than the number and / or area of ​​the second vias 152 in the conductive area 7, the contact area between the second metal layer 14, i.e. the metal strip 141, and moisture in the etched area 5 can be further increased. The second metal layer 14 in the etched area 5 has a stronger ability to consume moisture, and the moisture consumption of the display panel 100 is concentrated in the etched area 5, which further prevents moisture from spreading to the conductive area 7 side, further enhances the protection of the first metal trace 121, and improves the corrosion resistance of the display panel 100.

[0086] In some embodiments, the number of first vias 151 in the conductive region 7 is less than the number of first vias 151 in the etched region 5, and / or, the area of ​​the first vias 151 in the conductive region 7 is less than the area of ​​the first vias 151 in the etched region 5. It can be understood that the first vias 151 in the conductive region 7 are mainly used to expose part of the first metal trace 121 so that the transparent conductive layer 16 can contact the first metal trace 121, thereby facilitating the conduction of the voltage of the first metal trace 121 to the second metal trace 122 and the metal strip 141 in the etched region 5. The number and area of ​​the first vias 151 do not need to be too large, as long as the electrical connection between the transparent conductive layer 16 and the first metal trace 121 can be achieved. The first via 151 in the corrosion zone 5 is designed to allow the transparent conductive layer 16 to contact the second metal trace 122. This allows the second metal trace 122 to contact the transparent conductive layer 16 and moisture within the first via 151 in the corrosion zone 5, resulting in an electrochemical reaction that corrodes the second metal trace 122 to consume moisture. Setting the number and / or area of ​​the first via 151 in the corrosion zone 5 to be greater than the number and / or area of ​​the first via 151 in the conductive zone 7 further increases the contact area between the second metal trace 122 and moisture within the corrosion zone 5. This enhances the moisture-consuming capacity of the second metal trace 122 in the corrosion zone 5, concentrating the moisture consumption of the display panel 100 within the corrosion zone 5, further preventing moisture diffusion to the conductive zone 7 side, and further improving the protection of the first metal trace 121 and the corrosion resistance of the display panel 100.

[0087] See Figures 2 to 4 , Figure 6 and Figure 7 In some embodiments, both the conductive area 7 and the corrosion area 5 are provided with multiple metal strips 141. See also Figure 2 and Figure 7 In some embodiments, multiple metal strips 141 are spaced apart and arranged in an array within the corrosion zone 5; and / or, multiple metal strips 141 are spaced apart and arranged in an array within the conductive zone 7. It is understood that moisture undergoes an electrochemical reaction with the multiple metal strips 141 and the transparent conductive layer 16 at the multiple second vias 152, thereby corroding the metal strips 141. The spaced-apart arrangement of the multiple metal strips 141 effectively increases the corrosion path of the moisture, thus more effectively consuming the moisture and improving the corrosion resistance of the display panel 100. The array distribution of the multiple metal strips 141 allows for more uniform and effective consumption of moisture at multiple locations, further increasing the moisture consumption rate. It also simplifies the structure of the driving circuit layer and other film layers of the display panel 100, and facilitates the fabrication of the second metal layer 14, improving the fabrication efficiency of the second metal layer 14.

[0088] See Figures 2 to 4, Figure 6 and Figure 7 In some embodiments, both the conductive area 7 and the corrosion area 5 are provided with multiple metal strips 141. See also Figure 6 In some embodiments, any number of metal strips 141 within the corrosion zone 5 are interconnected, and / or any number of metal strips 141 within the conductive zone 7 are interconnected. That is, in this embodiment, some or all of the metal strips 141 within the corrosion zone 5 can be interconnected, and / or some or all of the metal strips 141 within the conductive zone 7 can be interconnected, but the metal strips 141 within the conductive zone 7 and the metal strips 141 within the corrosion zone 5 are disconnected by the spacing zone 6. It can be understood that by interconnecting the multiple second metal strips 141 within the corrosion zone 5 and / or the conductive zone 7, the area of ​​the second metal layer 14 within the corrosion zone 5 or the conductive zone 7 can be effectively increased, further enhancing the moisture-absorbing capacity of the metal strips 141 within the second metal layer 14, accelerating moisture consumption, and thus more effectively protecting the first metal trace 121 within the conductive zone 7 from corrosion, thereby improving the corrosion resistance of the display panel 100.

[0089] In this embodiment, the metal strip 141 of the second metal layer 14 is affected by the contact resistance of the transparent conductive layer 16 at the second via 152, making it easier to generate more heat at the location of the second via 152 and accelerating the consumption of moisture. On the other hand, the metal strip 141 of the second metal layer 14 is also affected by the heat from the second metal trace 122 or the first metal trace 121 of the first metal layer 12 directly below, which further enhances the rate at which moisture at the location of the second via 152 participates in the electrochemical reaction, increases the amount of moisture consumed, and further improves the corrosion resistance of the display panel 100.

[0090] See Figures 2 to 4 , Figure 6 and Figure 7In some embodiments, a plurality of metal strips 141 are provided in the etched region 5. Within the etched region 5, the number of second vias 152 on the side farther from the spacer region 6 is greater than the number of second vias 152 on the side closer to the spacer region 6, and / or, the area of ​​the second vias 152 on the side farther from the spacer region 6 is greater than the area of ​​the second vias 152 on the side closer to the spacer region 6. That is, within the etched region 5, the closer to the edge of the array substrate 1, the greater the number and / or area of ​​the second vias 152. This results in a larger contact area between the transparent conductive layer 16 and the second metal layer 14, i.e., the metal strips 141. Moisture is more likely to undergo an electrochemical reaction with the metal strips 141 at the location of the second vias 152 closer to the edge of the array substrate 1, thereby consuming most of the moisture at the location closer to the edge of the array substrate 1, preventing moisture from diffusing towards the display area X, and thus more effectively protecting the first metal trace 121.

[0091] In some embodiments, within the etched region 5, the number of first vias 151 on the side farther from the spacer region 6 is greater than the number of first vias 151 on the side closer to the spacer region 6; and / or, the area of ​​the first vias 151 on the side farther from the spacer region 6 is greater than the area of ​​the first vias 151 on the side closer to the spacer region 6. That is, within the etched region 5, the closer to the edge of the array substrate 1, the greater the number and / or area of ​​the first vias 151. Similarly, the above arrangement allows for a larger contact area between the transparent conductive layer 16 and the second metal trace 122 near the edge of the array substrate 1. Moisture is more likely to undergo an electrochemical reaction with the second metal trace 122 at the location of the first via 151 closer to the edge of the array substrate 1, thereby consuming most of the moisture at the location closer to the edge of the array substrate 1, preventing moisture from diffusing towards the display area X, and thus more effectively protecting the first metal trace 121.

[0092] In other embodiments, the conductive area 7 and the corrosion area 5 may also be provided with only one metal strip 141. The metal strip 141 can be set in any shape, as long as it can be in contact with the metal strip 141 at the second via 152 by the transparent conductive layer 16, so that electrochemical corrosion can occur and water vapor can be consumed when in contact with water vapor. The specific structure and arrangement of the metal strip 141 can be designed as needed, and the embodiments of this application do not limit it.

[0093] In some implementations, see Figure 5In this embodiment, the conductive area 7 may not have a second metal layer 14, i.e., a metal strip 141. The metal strip 141 is only disposed within the corrosion area 5, and the second via 152 is also only disposed within the corrosion area 5 corresponding to the metal strip 141. The conductive area 7 does not have a second via 152. The transparent conductive layer 16 only contacts the metal strip 141 within the corrosion area 5 through the second via 152 to achieve electrical connection. The corrosion of the second metal layer 14 by water vapor only occurs within the corrosion area 5 and does not extend into the conductive area 7. In this embodiment, all corrosion is concentrated only within the corrosion area 5, and the corrosion area 5 and the conductive area 7 are separated by the partition area 6. The corrosion occurring within the corrosion area 5 is less likely to spread to the conductive area 7, which can more effectively prevent water vapor from spreading to one side of the conductive area 7 and prevent the first metal trace 121 from being corroded.

[0094] See Figures 2 to 6 In some embodiments, the first metal trace 121 and the second metal trace 122 can both be cross-shaped. Both the first metal trace 121 and the second metal trace 122 can include a plurality of vertical traces spaced apart along a first direction L1 and a plurality of horizontal traces spaced apart along a second direction L2, with each horizontal trace intersecting one-to-one with the vertical traces. The shape, line width, and line spacing of the first metal trace 121 and the second metal trace 122 can be identical, allowing them to be fabricated simultaneously using the same process. This simplifies the fabrication process of the display panel 100, reduces process difficulty, and saves on process costs.

[0095] See Figure 7 In some embodiments, the second metal trace 122 can be a single metal line that meanders along the edge of the display panel 100. Specifically, the second metal trace 122 can meander along the edge of the display panel 100 in any manner, such as wavy, bow-shaped, or zigzag, and the second metal trace 122 is a single metal line.

[0096] It is understandable that the second metal trace 122 is set as a single metal line that meanders along the edge of the display panel 100. Compared with the first metal trace 121 which is cross-shaped, the line width and line spacing of the second metal trace 122 can be set to smaller values. The impedance of the second metal trace 122 is greater. Compared with the first metal trace 121, the second metal trace 122 is more likely to accumulate heat when in contact with the transparent conductive layer 16. External moisture is more likely to enter the first via 151 of the corrosion zone 5 under the high heat generated by the second metal trace 122. The contact between the transparent conductive layer 16 / moisture / second metal trace 122 will cause an electrochemical reaction at high temperature, corroding the second metal trace 122 and consuming the moisture.

[0097] In one specific implementation, such as Figure 7As shown, the first metal trace 121 in the conductive area 7 is cross-shaped. The first metal trace 121 includes a plurality of vertical traces spaced apart along the first direction L1 and a plurality of horizontal traces spaced apart along the second direction L2. The plurality of horizontal traces intersect the plurality of vertical traces one by one. The second metal trace 122 in the etched area 5 includes a plurality of long lines and a plurality of short lines. The plurality of long lines are all perpendicular to the side of the display panel 100 and are spaced apart from each other. The plurality of short lines connect the ends of two adjacent long lines. Specifically, the plurality of short lines are arranged one by one between two adjacent long lines and connect the beginning and end of the long lines. Only one short line is arranged between every two long lines, forming a meandering second metal trace 122.

[0098] Specifically, the linewidth of the second metal trace 122 is smaller than that of the first metal trace 121; and / or, in the first direction L1, the distance between two adjacent long traces is smaller than the distance between two adjacent vertical traces. This configuration results in a smaller linewidth and spacing for the second metal trace 122, making it easier to accumulate heat when in contact with the transparent conductive layer 16. External moisture is more easily drawn into the first via 151 of the corrosion zone 5 under the high heat generated by the second metal trace 122, thus corroding the second metal trace 122. This further enhances the moisture consumption rate of the second metal trace 122 within the corrosion zone 5, thereby further improving the corrosion resistance of the display panel 100 and enhancing its performance.

[0099] In other embodiments, the first metal trace 121 and the second metal trace 122 can also be set to other arbitrary shapes, which can be designed as needed. This application embodiment does not limit this.

[0100] In some implementations, such as Figures 2 to 7 As shown, the frame adhesive 3 can cover the corrosion area 5 and part of the conductive area 7. The frame adhesive 3 covers the end of the second metal trace 122 away from the display area X. That is, the second metal trace 122 and the second metal layer 14 are all located on the side of the frame adhesive 3 closest to the display area X. It can be understood that the frame adhesive 3 itself can prevent moisture from entering the display panel 100. By covering the end of the second metal trace 122 and the second metal layer 14 away from the display area X with the frame adhesive 3, the second metal trace 122 and the second metal layer 14 can be prevented from being located outside the frame adhesive 3 and directly contacting external moisture, thus avoiding corrosion. This would prevent the second metal trace 122 and the second metal layer 14 from being wasted and affecting the corrosion resistance of the display panel 100. Based on the initial blocking of moisture by the frame adhesive 3, the second metal trace 122 and the second metal layer 14 further consume the moisture that enters the display panel 100 through the frame adhesive 3, so as to more effectively prevent moisture from corroding the first metal trace 121 and the other metal traces in the display area X, and more effectively improve the corrosion resistance of the display panel 100.

[0101] Specifically, in some embodiments, the frame adhesive 3 is located within the non-display area F and connects the mounting substrate 2 and the array substrate 1. Gold balls (not shown) are disposed within the frame adhesive 3. The two ends of the gold balls pierce the alignment films 17 of the mounting substrate 2 and the array substrate 1, respectively, thereby electrically connecting to the transparent conductive layers 16 of the mounting substrate 2 and the array substrate 1. This electrical connection facilitates driving the display panel 100 to perform image display functions. Since at least the etched area 5 contains a second metal layer 14, i.e., a metal strip 141, the frame adhesive 3 covers the second metal layer 14 of the etched area 5. This makes it easier for the two ends of the gold balls within the frame adhesive 3 to pierce the alignment films 17 of the mounting substrate 2 and the array substrate 1, thus facilitating the electrical connection of the transparent conductive layers 16 of the mounting substrate 2 and the array substrate 1, and improving the performance of the display panel 100.

[0102] In other embodiments, the second metal trace 122 and the second metal layer 14 may be partially located outside the frame adhesive 3 and partially located inside the frame adhesive 3. That is, the frame adhesive 3 may not completely cover the end of the second metal trace 122 and the second metal layer 14 away from the display area X. By setting the second metal trace 122 and the second metal layer 14, moisture can still be consumed, thereby improving the corrosion resistance of the display panel 100. The specific configuration can be determined as needed.

[0103] See Figure 8 , Figure 8 This is a schematic diagram of an embodiment of the display device provided in the second embodiment of this application.

[0104] See Figure 8 The second embodiment of this application provides a display device 300, which includes a display panel 100 and a backlight 200. The backlight 200 is disposed on one side of the display panel 100 and is used to provide backlight for the display panel 100 so that the display panel 100 can realize the screen display function.

[0105] Specifically, the specific structure of the display panel 100 can be any of the display panels 100 described in the above embodiments, and can be designed or selected as needed.

[0106] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A display panel, comprising an array substrate and a counter substrate disposed opposite to each other, and a frame adhesive connecting the array substrate and the counter substrate; the display panel comprising a display area and a non-display area disposed around the periphery of the display area; characterized in that, In the non-display area, the array substrate includes a substrate, a first metal layer, an insulating layer, a second metal layer, a passivation layer, a transparent conductive layer, and an alignment film disposed sequentially. The non-display area includes an etched area, a spacer area, and a conductive area arranged sequentially, wherein the etched area is located on the side of the spacer area away from the display area; The first metal layer includes a first metal trace and a second metal trace spaced apart, the first metal trace being disposed in the conductive area and the second metal trace being disposed in the etched area; The second metal layer includes at least one metal strip, the metal strip being located at least in the corrosion zone, and within the corrosion zone, the projection portion of the at least one metal strip on the first metal layer covers the second metal trace; The passivation layer is provided with a plurality of first vias and a plurality of second vias at intervals; the first vias penetrate the passivation layer and the insulating layer and expose a portion of the first metal layer; the second vias penetrate the passivation layer and expose a portion of the second metal layer; The transparent conductive layer extends from the conductive area to the etched area, and within the conductive area, the transparent conductive layer is electrically connected to the first metal trace at least through the first via; within the etched area, the transparent conductive layer is in contact with the second metal trace through the first via, and is also in contact with the metal strip through the second via. The alignment film covers the side of the transparent conductive layer away from the substrate and extends into the first via and the second via, respectively.

2. The display panel according to claim 1, characterized in that, In the corroded area, at least a portion of the first via penetrates the passivation layer and the insulating layer, and exposes the side of the metal strip and the top surface of the second metal trace; The transparent conductive layer extends into the first via and is electrically connected to the metal strip and the second metal trace, respectively.

3. The display panel according to claim 1, characterized in that, The conductive area is also provided with the metal strip; Within the conductive area, the projection of the metal strip onto the first metal layer covers the first metal trace.

4. The display panel according to claim 3, characterized in that, Within the conductive area, the first via penetrates the passivation layer and the insulating layer, and exposes only the top surface of the first metal trace; the transparent conductive layer extends into the first via and is electrically connected only to the first metal trace. Furthermore, within the conductive area, the second via penetrates the passivation layer and exposes only a portion of the metal strip, while the transparent conductive layer extends into the second via and contacts the metal strip.

5. The display panel according to claim 4, characterized in that, The number of second vias in the conductive zone is less than the number of second vias in the corroded zone; And / or, the area of ​​the second via in the conductive region is smaller than the area of ​​the second via in the corroded region; And / or, the number of first vias in the conductive area is less than the number of first vias in the etched area; And / or, the area of ​​the first via in the conductive region is smaller than the area of ​​the first via in the corroded region.

6. The display panel according to claim 3, characterized in that, Both the conductive area and the corrosion area are provided with multiple metal strips; Within the corrosion zone, multiple metal strips are spaced apart from each other, and multiple metal strips are distributed in an array; And / or, within the conductive area, a plurality of the metal strips are spaced apart from each other, and a plurality of the metal strips are distributed in an array.

7. The display panel according to claim 3, characterized in that, Both the conductive area and the corrosion area are provided with multiple metal strips; Within the corrosion zone, any number of the plurality of metal strips are interconnected; And / or, within the conductive area, any number of the plurality of metal strips are interconnected.

8. The display panel according to claim 1, characterized in that, Multiple metal strips are provided within the corrosion zone; Within the corrosion zone, the number of second vias on the side furthest from the spacer area is greater than the number of second vias on the side closest to the spacer area. And / or, the number of first vias on the side away from the interval area is greater than the number of first vias on the side closer to the interval area; And / or, the area of ​​the second via on the side away from the interval region is greater than the area of ​​the second via on the side closer to the interval region; And / or, the area of ​​the first via on the side away from the interval region is greater than the area of ​​the first via on the side closer to the interval region.

9. The display panel according to any one of claims 1-8, characterized in that, The first metal trace is cross-shaped and includes a plurality of vertical traces spaced apart along a first direction and a plurality of horizontal traces spaced apart along a second direction, with the plurality of horizontal traces intersecting the plurality of vertical traces in a one-to-one correspondence. The second metal trace includes multiple long lines and multiple short lines. The multiple long lines are perpendicular to the side of the display panel and are spaced apart from each other. The multiple short lines are connected to the ends of two adjacent long lines. The width of the second metal trace is smaller than the width of the first metal trace; and / or, In the first direction, the distance between two adjacent long lines is less than the distance between two adjacent vertical lines.

10. A display device, characterized in that, include: The display panel as described in any one of claims 1-9; A backlight module is disposed on one side of the display panel and is used to provide backlight for the display panel.

Images