Display panel and display device

Abstract

The display panel and the display device are provided. The display panel has a display area in a circular shape and a non-display area surrounding the display area, and comprises a substrate, a driving layer covering the display area and the non-display area, the driving layer comprising data transmission tracks located in the non-display area and pixel driving circuits located in the display area, the data transmission tracks being used for transmitting signals to the corresponding pixel driving circuits, first metal lines being arranged on the radial outer side of the data transmission tracks and being electrically connected to the ground to release static electricity in the data transmission tracks, a light-emitting layer, and an encapsulation layer. The ESD impact on the data transmission tracks is reduced, the risk of damage to the data transmission tracks is effectively reduced, and the abnormal situations such as damage of the screen body and appearance of bright lines are avoided.

Description

Technical Field

[0001] This disclosure relates to the field of display panel technology, and more particularly to a display panel and display device. Background Technology

[0002] The outermost part of the display panel has a large number of data transmission lines. Therefore, during daily use, the display panel is often exposed to electrostatic discharge (ESD) damage due to environmental factors or human contact, which can lead to display abnormalities or even damage to the display panel (also known as the screen).

[0003] To address this issue, a common approach is to add a ring-shaped metal trace on the outside as a sacrificial layer. This prevents static electricity from being released onto the data transmission metal lines outside the screen, effectively protecting the data transmission lines inside the screen from ESD. However, this method is not effective in protecting the data transmission lines when the charge level is high. Static electricity can be released at a distance close to the data transmission lines, still causing the data transmission lines to be damaged by ESD.

[0004] Furthermore, as screens trend towards narrower bezels, the structural design of the screens has changed, further compressing the distance between the data transmission traces at the edge and the edge of the screen. The distance between the edge ESD protection traces and the data transmission traces is getting closer and closer, making it increasingly difficult for a single ESD protection trace to play a protective role. The data transmission traces are more likely to be damaged by ESD, and the risk of screen damage and abnormal situations such as bright lines is also greatly increased. Summary of the Invention

[0005] In view of this, the purpose of this disclosure is to provide a display panel and display device, wherein the display panel has an anti-static function to solve the problem that a single electrostatic discharge protection trace is insufficient to protect the data transmission trace, resulting in a greater probability of the data transmission trace being damaged by electrostatic discharge.

[0006] For the purposes described above, this disclosure discloses a display panel, comprising:

[0007] substrate;

[0008] A driving layer is disposed on the substrate; the driving layer covers a display area and a non-display area, and the driving layer includes data transmission lines located in the non-display area and pixel driving circuits located in the display area, wherein the data transmission lines are used to transmit signals to the corresponding pixel driving circuits;

[0009] The driving layer includes a first metal wire, which is disposed radially outside the data transmission trace and is electrically grounded to release static electricity in the data transmission trace.

[0010] A light-emitting layer is disposed on the side of the driving layer away from the substrate, and the light-emitting layer includes an anode, a light-emitting device, and a cathode stacked on the driving layer;

[0011] An encapsulation layer is disposed on the side of the light-emitting layer away from the light-emitting layer, and the encapsulation layer is used to seal the light-emitting layer.

[0012] Furthermore, the driving layer also includes a plurality of second metal lines, all of which are disposed between the data transmission trace and the first metal line;

[0013] Preferably, the plurality of second metal wires are arranged independently and in parallel.

[0014] Furthermore, the distance between the second metal line and the first metal line is less than the distance between the second metal line and the data transmission trace.

[0015] Furthermore, the driving layer also includes an ELVSS trace, which is located radially inside the second metal line and outside the thickness direction of the data transmission trace.

[0016] Furthermore, it includes a touch film layer, which is disposed on the encapsulation layer;

[0017] It also includes a third metal line disposed within the touch film layer.

[0018] Furthermore, the third metal line and the data transmission trace are not overlapped in the thickness direction;

[0019] Preferably, the orthographic projection of the third metal line on the driving layer does not overlap with the data transmission trace.

[0020] Furthermore, the third metal wire and the second metal wire are partially overlapped in the thickness direction;

[0021] Preferably, the orthographic projection of the third metal wire onto the driving layer partially overlaps with that of the second metal wire;

[0022] The orthogonal projection of the third metal line on the driving layer may or may not overlap with the ELVSS trace portion.

[0023] A display panel having a circular display area and a non-display area surrounding the display area, comprising:

[0024] substrate;

[0025] A driving layer, wherein the driving layer has data transmission traces and ELVSS traces in the non-display area, the distance between the ELVSS traces and the edge of the driving layer is less than the distance between the data transmission traces and the edge of the driving layer, and a pixel driving circuit located in the display area;

[0026] A light-emitting layer is disposed on the side of the driving layer away from the substrate, and the light-emitting layer includes an anode, a light-emitting device, and a cathode stacked on the driving layer;

[0027] An encapsulation layer is disposed on the light-emitting layer away from the light-emitting layer, and the encapsulation layer is used to seal the light-emitting layer;

[0028] A touch film layer is disposed on the side of the encapsulation layer away from the encapsulation layer.

[0029] Furthermore, along the thickness direction of the display panel, the ELVSS traces cover multiple data transmission traces in the thickness direction.

[0030] Based on the same inventive concept, this application proposes a display device, including the display panel as described above.

[0031] Compared with the prior art, the present invention has the following technical effects:

[0032] The display panel proposed in this application forms an electrostatic discharge path by setting ground metal traces around the driving layer, which quickly conducts away a large amount of static charge entering the screen body, reduces ESD impact on data transmission traces, and thus effectively reduces the risk of damage to data transmission traces and avoids abnormal situations such as screen damage and bright lines.

[0033] By setting an independent suspended metal trace, i.e. a second metal trace, between the externally grounded metal trace and the data transmission trace, the second metal trace acts as a sacrificial metal trace, effectively preventing electrostatic coupling damage to the data transmission trace caused by excessive static electricity.

[0034] A third metal line, also known as a metal trace, is placed around the periphery of the touch film layer. By overlapping with the suspended metal trace and the ELVSS trace, it acts as an electrostatic discharge bridge point. This allows static electricity that cannot be promptly conducted away by the grounded metal trace around the driver layer to be released onto the ELVSS trace and discharged from the screen. This enhances the overall electrostatic discharge capability of the screen and forms a multi-layered electrostatic protection structure. It further disperses and neutralizes static charge, ensuring that static electricity is not concentrated and released onto the data transmission trace. This comprehensively improves the screen's ESD resistance, ensuring the stability of the display effect and the lifespan of the screen. Furthermore, by extending the ELVSS trace, it can not only preferentially accept static electricity but also shield the overlap between the data transmission trace and other film layer boundaries, further enhancing the screen's ESD protection effect. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in this disclosure or related technologies, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are only embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the wiring layout of a display panel according to one embodiment of the present invention;

[0037] Figure 2 This is a cross-sectional view at point I-I' in a schematic diagram of the wiring arrangement of a display panel according to an embodiment of the present invention;

[0038] Figure 3 This is a cross-sectional view at point II-II' in a schematic diagram of the wiring arrangement of a display panel according to an embodiment of the present invention;

[0039] Figure 4 This is a schematic diagram of the ELVSS wiring layout of a display panel according to an embodiment of the present invention;

[0040] Figure 5 This is a cross-sectional view at point III-III' in a schematic diagram of the ELVSS wiring arrangement of a display panel according to an embodiment of the present invention;

[0041] Among them, 10 is the substrate; 20 is the driving layer; 21 is the data transmission line; 22 is the first metal line; 23 is the second metal line; 24 is the ELVSS line; 30 is the encapsulation layer; 40 is the touch film layer; 41 is the third metal line; and 50 is the light-emitting layer. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this disclosure clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0043] The following description, with reference to the accompanying drawings, illustrates preferred embodiments of the present invention, demonstrating its implementability. These embodiments provide a complete overview of the invention for those skilled in the art, making its technical content clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the scope of protection of the present invention is not limited to the embodiments mentioned herein.

[0044] In the accompanying drawings, components with the same structure are indicated by the same numerical designation, and components with similar structures or functions are indicated by similar numerical designations. The dimensions and thicknesses of each component shown in the drawings are arbitrary, and the present invention does not limit the dimensions and thicknesses of each component. To make the illustrations clearer, the thickness of components is appropriately exaggerated in some places in the drawings.

[0045] Furthermore, the following descriptions of the embodiments of the invention are made with reference to the accompanying illustrations, illustrating specific embodiments in which the invention can be implemented. Directional terms used in this invention, such as "upper," "lower," "front," "rear," "left," "right," "inner," "outer," and "side," are merely directional references to the accompanying drawings. Therefore, the use of directional terms is for better and clearer explanation and understanding of the invention, and does not indicate or imply that the referred device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] When a component is described as being "on" another component, the component may be placed directly on the other component; alternatively, an intermediate component may exist on which the component is placed, and the intermediate component is placed on the other component. When a component is described as being "installed to" or "connected to" another component, both can be understood as being directly "installed" or "connected" to, or indirectly "installed to" or "connected to" another component via an intermediate component.

[0047] The outermost layer of a display panel contains numerous data transmission lines. Therefore, during daily use, display panels are frequently exposed to electrostatic discharge (ESD) damage due to environmental factors or human contact, leading to impaired display quality and even screen damage. To address this issue, current technologies often employ a ring-shaped metal trace on the outer side as a sacrificial layer. This prevents static electricity from dissipating to the data transmission lines on the outer perimeter of the screen, effectively protecting the internal data transmission lines from ESD.

[0048] The inventors of this application discovered the following problems in the related technology during long-term practical work: the above-mentioned methods cannot effectively protect data transmission lines when the electric charge level is large. Static electricity will be released at a distance close to the data transmission lines, which can still cause the data transmission lines to be damaged by electrostatic discharge. Moreover, as screens are trending towards narrower bezels, the structural design of the screen has changed, further compressing the distance between the edge data transmission lines and the edge of the screen. The distance between the edge electrostatic discharge protection lines and the data transmission lines is getting closer and closer, making it increasingly difficult for a single electrostatic discharge protection line to play a protective role. The probability of the data transmission lines being damaged by electrostatic discharge is greater, and the risk of screen damage and abnormal situations such as bright lines is also greatly increased.

[0049] For the reasons mentioned above, the applicant proposes a display panel that increases the chance of being injured by electrostatic discharge.

[0050] Example 1

[0051] like Figure 1 As shown, the present invention provides a display panel. The display panel has a circular display area and a non-display area surrounding the display area, and includes a substrate 10, a driving layer 20, an encapsulation layer 30, a light-emitting layer 50, a touch film layer 40, and a first metal line 22. The driving layer 20 is disposed on the substrate 10. The driving layer 20 includes a display area and a non-display area. The non-display area of ​​the driving layer 20 has a plurality of data transmission lines 21 distributed thereon. The data transmission lines 21 are used to accurately transmit signals to the corresponding pixel driving circuits. The light-emitting layer 50 is disposed on the side of the driving layer 20 away from the substrate 10. The light-emitting layer 50 includes an anode, a light-emitting device, and a cathode stacked on the driving layer 20. The encapsulation layer 30 is disposed on the side of the light-emitting layer 50 away from the light-emitting layer 50. The encapsulation layer 30 is used to seal the light-emitting layer. The touch film layer 40 is disposed on the encapsulation layer. The touch film layer 40 is used to realize the touch interaction function between the user and the display panel. The driving layer includes a first metal line 22, which is disposed radially outside the data transmission lines 21 and is electrically grounded to release static electricity in the data transmission lines 21.

[0052] In this embodiment, as Figure 1 As shown, the display panel is circular in shape. Preferably, its display area is circular. Its unique circuit layout optimizes the electrostatic discharge path and effectively reduces the risk of damage to the data transmission line 21.

[0053] The substrate 10 is a flexible substrate, and the material can be selected from polyimide (PI), polyethylene naphthalate (PEN) or polyethylene terephthalate (PET), etc. The substrate can also be a rigid substrate, such as glass.

[0054] Glass substrate 10, with its high flatness, good chemical stability, and thermal stability, has become the preferred material for many display technologies, including organic light-emitting diode (OLED) display panels. In this embodiment, glass substrate 10 is used. Glass substrate 10 effectively reduces the coefficient of thermal expansion, ensuring the display panel can operate stably even in high-temperature environments. Simultaneously, its high light transmittance enhances the display effect, making the image clearer and more detailed. Furthermore, glass substrate 10 has high mechanical strength and wear resistance, extending the lifespan of the display panel. In terms of manufacturing processes, the processing precision of substrate 10 directly affects the resolution and display effect of the display panel. For example, when manufacturing high-resolution display panels, it is necessary to precisely etch tiny circuit patterns and pixel electrodes onto substrate 10. The surface flatness of substrate 10 is also crucial. If there are minor defects or unevenness on the surface, it may cause disorder in the arrangement of liquid crystal molecules, resulting in bright spots, dark spots, or color shifts in the displayed image. In addition, substrate 10 also serves a heat dissipation function. During the operation of the display panel, various components generate heat; if heat cannot be dissipated effectively and in a timely manner, it will affect the performance and lifespan of the display panel. Some high-performance display panels use substrate materials with good heat dissipation properties, or have special heat dissipation structures designed on the substrate to ensure that the display panel works in a stable temperature environment.

[0055] A driving layer 20 is disposed on one side of the substrate. The driving layer includes a pixel driving circuit located in the display area, which is matched and connected to the corresponding pixel to drive the light-emitting device to emit light, and a scan driving circuit disposed in the non-display area. The driving layer includes a stacked semiconductor layer, a first metal layer, a second metal layer, a third metal layer, a fourth metal layer, and an interlayer insulating film layer disposed between adjacent conductive film layers. The combination of the semiconductor layer and the wiring in the first metal layer forms a transistor; the combination of the wiring in the first metal layer and the wiring in the second metal layer forms a storage capacitor; multiple signal lines with different orientations are provided in the third and fourth metal layers, or in the second, third, and fourth metal layers; corresponding signal lines are matched and electrically connected to the transistor and the storage capacitor, thereby forming a pixel driving circuit in the display area, as well as scan lines, data lines, and the scan driving circuit.

[0056] The light-emitting layer 50 is disposed on the side of the driving layer 20 away from the substrate 10. The light-emitting layer 50 includes an anode, a light-emitting device, and a cathode stacked on the driving layer 20. The anode can be made of a transparent conductive material such as indium tin oxide. A pixel defining portion is provided between adjacent anodes, and the pixel defining portion forms multiple openings, each opening exposing a corresponding anode. A sub-pixel is disposed in each opening, and the sub-pixel can be divided into a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel. The structure of the sub-pixel can be an anode, a light-emitting device, and a cathode stacked sequentially; the structure of the sub-pixel can also be an anode, a hole injection layer, a hole transport layer, an electron blocking layer, a light-emitting device, a hole blocking layer, an electron transport layer, an electron injection layer, and a cathode stacked sequentially. In this embodiment, the light-emitting layer may include three types of light-emitting devices: a first-color light-emitting device corresponding to a first-color sub-pixel, a second-color light-emitting device corresponding to a second-color sub-pixel, and a third-color light-emitting device corresponding to a third-color sub-pixel. The first-color light-emitting device may be a light-emitting device that emits red light, the second-color light-emitting device may be a light-emitting device that emits blue light, and the third-color light-emitting device may be a light-emitting device that emits green light.

[0057] An encapsulation layer 30 is disposed on the side of the light-emitting layer 50 away from the light-emitting layer 50. The encapsulation layer 30 is used to seal the light-emitting layer 50 to reduce the probability of water, oxygen, etc., penetrating into the light-emitting layer 50, thereby improving the reliability of the light-emitting layer 50. The encapsulation layer 30 includes multiple encapsulation portions. Each encapsulation portion is a structure in the encapsulation layer 30 that covers at least one adjacent light-emitting device, so that one encapsulation portion can protect at least one adjacent light-emitting device. Each encapsulation portion is respectively disposed corresponding to each light-emitting device to realize the encapsulation of the light-emitting device. In some embodiments, multiple light-emitting devices are disposed in a one-to-one correspondence with multiple encapsulation portions to realize the independent encapsulation of the light-emitting devices. Alternatively, one encapsulation portion is disposed corresponding to multiple light-emitting devices, and multiple light-emitting devices are encapsulated by one encapsulation portion, for example, multiple light-emitting devices of the same color are encapsulated by one encapsulation portion. Based on this, the embodiments of this application set the thickness M of the encapsulation portions corresponding to at least some different colored light-emitting devices to reduce the probability of light-emitting device failure. Specifically, taking the red light-emitting device being prepared before the green light-emitting device as an example, due to the existence of the isolation structure, the red light-emitting device and its corresponding encapsulation portion are prepared and formed before the green light-emitting device. Then, according to the manufacturing sequence, the thickness M of the encapsulation portion corresponding to the red light-emitting device can be appropriately increased to make it greater than the thickness M of the encapsulation portion corresponding to the green light-emitting device. This reduces the probability of etching damage to the encapsulation portion corresponding to the red light-emitting device during the etching process of the green light-emitting device, thereby ensuring effective encapsulation of the red light-emitting device, reducing the risk of failure, and improving the reliability of the display panel. Furthermore, for light-emitting devices of different colors, the thickness M of their corresponding encapsulation portions can be set differently or the same as needed.

[0058] A touch film layer 40 is disposed on the encapsulation layer 30. The touch film layer 40 includes a touch metal layer and an insulating layer. The touch metal layer is located on the side close to the substrate 10, and the touch metal layer 121 is used to realize the touch function. The insulating layer includes a body portion 1221 and an opening portion 1222; the body portion 1221 is in the same layer as the touch metal layer 121, and / or the body portion 1221 is located on the side of the touch metal layer 121 away from the touch substrate 11; the opening portion 1222 exposes at least a portion of the touch metal layer 121, thereby reducing or eliminating the contact area between the body portion and the touch metal layer, so that when the display panel is bent under force, there is a stress difference between the parts of the body portion and the touch metal layer in contact with each other, which has a negative impact on the bending performance of the display panel. For example, it reduces the possibility of cracks appearing in the parts of the body portion and the touch metal layer in contact, or the problem of the body portion and the touch metal layer separating from each other due to poor contact. Therefore, it is useful for improving the bending performance and yield of the display panel. Furthermore, the provision of the insulating layer is beneficial to improving the insulation performance of the touch metal layer in the direction perpendicular to the plane of the substrate 10 or in the direction parallel to the plane of the substrate 10.

[0059] Data transmission trace 21 is a crucial component connecting various functional modules, ensuring stable signal transmission. Its layout design must minimize electromagnetic interference, employing high-conductivity materials to reduce signal loss, while also possessing good flexibility to adapt to device bending requirements, guaranteeing the reliability and efficiency of data transmission. In practical applications, the anti-interference capability of data transmission trace 21 is equally important. However, during daily use, due to environmental factors or human contact, it frequently faces electrostatic discharge damage, leading to impaired display effects and even screen damage. To address this issue, the layout design of data transmission trace 21 incorporates anti-static protection measures, effectively reducing electrostatic interference through optimized grounding design.

[0060] The first metal line 22 is positioned radially outside the data transmission trace 21. This arrangement allows the first metal line 22 to form a protective barrier outside the data transmission trace 21. The first metal line 22 is grounded, providing a low-impedance discharge path for static electricity through a reliable connection to the grounding terminal. During the use of the display panel, static electricity from the external environment or generated by internal circuitry can easily accumulate on the data transmission trace 21. When the first metal line 22 is grounded, according to the principles of electrostatics, charge flows from high potential to low potential, and static electricity flows rapidly to the ground through the first metal line 22. This prevents excessive accumulation of static electricity on the data transmission trace 21, preventing damage and ensuring the stability and reliability of data transmission within the driving layer 20, thus guaranteeing the normal operation of the display panel. When the display panel is affected by static electricity, the accumulated static charge on the data transmission trace 21 will preferentially be released to the ground quickly through the first metal line 22, thereby avoiding direct ESD damage to the data transmission trace 21. In the above structure, the first metal wire 22 can form a protective ring around the driving layer 20, which enhances the stability and anti-interference ability of the overall structure.

[0061] In a preferred embodiment, to further enhance the electrostatic discharge effect, the number and width of the first metal lines 22 can be increased. Increasing the number provides more electrostatic discharge channels, while increasing the width reduces resistance, allowing static electricity to dissipate more quickly. Simultaneously, optimizing the layout of the first metal lines 22 ensures their uniform distribution across key areas of the driving layer 20, forming a multi-layered protective network and further improving the electrostatic protection effect. Furthermore, the material selection for the first metal lines 22 is also crucial, requiring high conductivity and corrosion resistance to ensure stability and reliability during long-term use. This design not only extends the lifespan of the display panel but also optimizes the user experience and reduces equipment failures and maintenance costs caused by electrostatic problems.

[0062] like Figure 1 , 2 As shown in Figure 3, by setting a grounded first metal wire 22 on the radial outer side of the data transmission trace 21, static electricity can be released quickly and effectively, greatly reducing the risk of static electricity damaging the data transmission trace 21. This improves the anti-static capability of the display panel, effectively avoids damage to the data transmission trace 21 caused by static electricity, and ensures that the data signals generated by the integrated circuit can be transmitted normally to the inside of the screen, thereby ensuring the display quality of the display screen and reducing the occurrence of display abnormalities such as bright lines and screen distortion.

[0063] The system also includes multiple second metal lines 23, all positioned between the data transmission trace 21 and the first metal line 22. These second metal lines 23 are independent and parallel to each other. When static electricity is generated, although grounding the first metal line 22 can conduct some of the static charge, it may not be able to completely conduct away all the static charge in time if the magnitude of the static charge is large. This is where the second metal lines 23 play a crucial role. Because they are independent and parallel, they act as additional electrostatic induction carriers in the electrostatic field. When the electrostatic field strength near the first metal line 22 is too high, some static electricity will first couple to the second metal lines 23. Multiple second metal lines 23 provide more paths for static electricity containment and dissipation. Compared to only having the first metal line 22, they increase the area for static electricity dissipation and reduce the local electrostatic field strength. This prevents static electricity from discharging through the air to the data transmission trace 21 due to excessive static charge. This multi-layered electrostatic protection design not only improves the overall anti-interference capability of the display panel but also ensures the stability and reliability of data transmission, further extending the lifespan of the equipment, reducing user maintenance costs, and enhancing the product's market competitiveness.

[0064] The distance between the second metal wire 23 and the first metal wire 22 is less than the distance between the second metal wire 23 and the data transmission trace 21. Maintaining a relatively large distance between the second metal wire 23 and the data transmission trace 21 reduces its interference with the data transmission trace 21. During electrostatic discharge, if the second metal wire 23 is too close to the data transmission trace 21, even with the first metal wire 22 as protection, electrostatic coupling and other phenomena may still affect the normal operation of the data transmission trace 21. A larger distance effectively avoids the adverse effects of the electrostatic field on the data transmission trace 21, ensuring the stability of data signal transmission, preventing data loss and signal distortion due to electrostatic interference, and thus avoiding display abnormalities such as bright lines and screen distortion. The first metal wire 22 is grounded and is the main channel for electrostatic discharge. The second metal line 23 is close to the first metal line 22. When the first metal line 22 cannot completely conduct away static electricity, the second metal line 23 can quickly share some of the charge. The first metal line 22 can transfer the static electricity it senses to the second metal line 23 more quickly and efficiently, forming a dual protection mechanism. This further weakens the potential threat of static electricity to the data transmission line 21, ensures the continuity and accuracy of signal transmission, and thus improves the overall performance of the display screen and the user experience.

[0065] The driving layer 20 also includes an ELVSS trace 24, which is located radially inside the second metal line 23 and outer in the thickness direction of the data transmission trace 21. It also includes a third metal line 41, which is disposed within the touch film layer 40. When static electricity is generated and its intensity exceeds the withstand capability of the first metal line 22, some static electricity will couple to the second metal line 23 and gradually accumulate. Since the second metal lines 23 are independent of each other, their ability to conduct static electricity is limited when a large amount of static electricity surges in. At this time, the third metal line 41, by overlapping with the second metal line 23 and the ELVSS trace 24, constructs a new static electricity conduction path. The overlapping area forms a capacitive coupling effect, allowing the static electricity accumulated on the second metal line 23 to be transferred to the third metal line 41 through capacitive coupling. The third metal line 41 acts as a static electricity release bridge point, effectively solving the problem of static electricity accumulation. It guides excess static electricity on the second metal line 23 to the ELVSS trace 24. ELVSS traces 24 are typically connected to the grounding system or have a specific electrostatic discharge path. This ensures that static electricity that might otherwise threaten data transmission traces 21 can be safely discharged from the driver layer 20, preventing damage to the data transmission traces 21 and guaranteeing the stability of data transmission and the normal operation of the screen display. This design greatly enhances the screen's electrostatic protection capabilities. In practical use, the driver layer 20 inevitably suffers from electrostatic interference from various sources, such as human touch and static electricity from the environment. With the intervention of the third metal line 41, even when the electrostatic discharge capabilities of the first metal line 22 and the second metal line 23 reach their limits, the driver layer 20 can still effectively cope, reducing abnormal phenomena such as bright lines and flickering caused by static electricity, improving the screen's reliability and lifespan, and enhancing product quality and user experience.

[0066] When the first metal line 22 cannot withstand the electrostatic discharge released to the second metal line 23 and the static electricity accumulates to a certain amount, it is coupled to the ELVSS trace 24 through the third metal line 41. The third metal line 41, by overlapping with the second metal line 23 and the ELVSS trace 24, acts as an electrostatic discharge bridge point, which can release the static electricity that the second metal line 23 failed to conduct away in time to the ELVSS trace 24 and out of the screen. This enhances the overall electrostatic discharge capability of the driving layer 20 and forms a multi-layer electrostatic protection structure, further dispersing and neutralizing static charge, ensuring that static electricity will not be concentrated and released to the data transmission trace 21, thereby comprehensively improving the screen's anti-ESD performance, ensuring the stability of the display effect and the service life of the display panel.

[0067] It should be noted that in this embodiment, the third metal line 41 and the data transmission trace 21 are not overlapped in the thickness direction. Preferably, the orthographic projection of the third metal line 41 on the driving layer 20 does not overlap with the data transmission trace 21. This design avoids interference from the third metal line 41 to the data transmission signal, ensuring the purity of signal transmission. At the same time, the layout of the third metal line 41 is precisely calculated, which not only does not affect the overall structure of the driving layer 20, but also maximizes the electrostatic discharge efficiency, further improving the overall performance of the screen.

[0068] The third metal line 41 and the second metal line 23 are partially overlapped in the thickness direction. Preferably, the orthogonal projection of the third metal line 41 on the driving layer partially overlaps with the second metal line 23. The third metal line 41 and the ELVSS trace 24 are partially overlapped or not overlapped in the thickness direction. Specifically, in one embodiment, as... Figure 2 As shown, in the area of ​​the drive layer 20 without data transmission traces 21, the third metal line 41 and the ELVSS trace 24 partially overlap in the thickness direction. Figure 1 There is no data transmission trace 21 at point I-I'. The third metal line 41 precisely overlaps with the second metal line 23 and the ELVSS trace 24, forming a highly efficient electrostatic discharge network. This ensures uniform electrostatic dispersion, does not affect signal transmission, and further improves the stability and durability of the screen. This precise layout design not only optimizes the electrostatic protection effect but also ensures the structural integrity of the driving layer 20, enabling the screen to maintain efficient data transmission and stable display performance even in complex electrostatic environments. In another embodiment, as... Figure 1 Data transmission trace 21 exists at point II-II'. Figure 3The cross-sectional view at point II-II' shows the area in the driving layer 20 containing the data transmission trace 21. The third metal line 41 and the ELVSS trace 24 are not overlapped in the thickness direction. The third metal line 41 cleverly avoids overlap with the second metal line 23 and the ELVSS trace 24 only in the non-signal area, ensuring both signal transmission stability and effective static discharge, forming a complementary protection system and further improving the overall performance of the screen in complex environments. This flexible layout of the third metal line 41 ensures effective static discharge in different areas while avoiding interference with data transmission. By precisely controlling the distribution of overlapping and non-overlapping areas, the driving layer 20 maintains efficient electrostatic protection while ensuring pure signal transmission, thereby improving ESD resistance performance and ensuring continuous stability of display effects and long-term durability of the panel. In addition, this design further improves the uniformity of static discharge by optimizing the width and spacing of the third metal line 41, reducing the risk of local charge accumulation, ensuring that the screen maintains excellent ESD resistance performance during long-term use, and effectively extending the lifespan of the display panel. This sophisticated layout strategy not only enhances the screen's anti-interference capabilities but also reduces the failure rate by evenly dispersing static electricity, ensuring long-term stable operation. Simultaneously, the optimized metal wire design effectively reduces energy consumption and improves overall energy efficiency.

[0069] Example 2

[0070] like Figure 4 , 5 As shown, a display panel has a circular display area and a non-display area surrounding the display area, including a substrate 10, a driving layer 20, a light-emitting layer 50, an encapsulation layer 30, and a touch film layer 40. The driving layer 20 has a data transmission line 21 and an ELVSS line 24 in the non-display area, the distance between the ELVSS line 24 and the edge of the driving layer 20 is less than the distance between the data transmission line 21 and the edge of the driving layer 20, and a pixel driving circuit located in the display area. The light-emitting layer 50 is disposed on the driving layer 20, on the side of the driving layer 20 away from the substrate 10, and includes an anode, a light-emitting device, and a cathode stacked on the driving layer 20. The encapsulation layer 30 is disposed on the side of the light-emitting layer 50 away from the light-emitting layer 50, and is used to seal the light-emitting layer 50. The touch film layer 40 is disposed on the side of the encapsulation layer 30 away from the encapsulation layer 30.

[0071] The non-display area of ​​the driver layer 20 contains several data transmission traces 21 and ELVSS traces 24. The distance between the ELVSS trace 24 and the edge of the driver layer 20 is smaller than the distance between the data transmission trace 21 and the edge of the driver layer 20. This design eliminates the peripheral ESD protection traces, preventing the edge metal lines from attracting static electricity. In the traditional driver layer 20 design, although the peripheral ESD protection traces are intended to protect the screen from electrostatic damage, their proximity to the screen's cutting boundary makes them prone to attracting external static electricity to the data transmission traces 21. Eliminating these traces avoids this negative effect at the source. The core purpose of this measure is to fundamentally eliminate the hidden danger of edge metal lines attracting static electricity. After eliminating these traces, there is no longer a metal structure at the edge of the screen that easily accumulates static electricity, greatly reducing the direct impact of external static electricity on the screen. Simply eliminating the peripheral ESD protection traces is not enough; an effective alternative is needed to ensure the screen's ESD protection performance. Therefore, it is also necessary to extend the ELVSS traces outwards and make them completely cover the data transmission traces 21 at the edge of the screen, thereby forming a new electrostatic protection barrier that effectively blocks external electrostatic interference.

[0072] Along the thickness direction of the display panel, the ELVSS trace 24 covers multiple data transmission traces 21. This layout greatly enhances the screen's ability to withstand electrostatic discharge (ESD) shocks. Because the ELVSS trace 24 is closer to the edge of the driving layer 20, it is the first to absorb ESD when faced with external ESD interference. When ESD couples to the ELVSS trace 24, its coverage by multiple data transmission traces 21 in the thickness direction disperses a large amount of static electricity. This design not only enhances the screen's ESD protection capability but also optimizes the overall circuit layout, ensuring stable operation of the display panel in various environments and extending its lifespan. Furthermore, the extended coverage of the ELVSS trace 24 reduces the exposed area of ​​the data transmission traces 21, further reducing the risk of ESD coupling. Through this comprehensive protection, the display panel maintains excellent display performance and touch response in complex electromagnetic environments, improving user experience and product reliability. The extended design of the ELVSS trace 24 forms a robust ESD protection wall at the edge of the screen, effectively isolating external ESD interference. Meanwhile, this layout optimizes circuit distribution, reduces the risk of electrostatic coupling of data transmission traces 21, improves the overall stability and durability of the display panel, and ensures clear, smooth display and sensitive touch response in various environments, further enhancing the product's market competitiveness. Furthermore, in the multi-layered structure of the display panel, data transmission traces 21 are used to transmit signals to the corresponding pixel driving circuits. The layers above the ELVSS traces 24, such as the organic layers of the touch film, are prone to electrostatic accumulation and electromagnetic interference at their boundaries during production and use. When the ELVSS traces 24 completely enclose the data transmission traces 21, a relatively closed electromagnetic environment is created. From an electromagnetic perspective, the metallic ELVSS traces 24 can form a shield, blocking external electromagnetic interference. When an external electric or magnetic field attempts to penetrate the ELVSS traces 24, an induced current is generated on its surface. This induced current generates a reverse electromagnetic field, thereby canceling out external interference and achieving shielding protection for the data transmission traces 21. The overlapping of film layers can generate irregular electric and magnetic fields, which can severely affect the signals in data transmission trace 21, leading to signal distortion, attenuation, or noise. Once data transmission is interfered with, the display effect of the screen will be greatly reduced, potentially resulting in screen flicker, color deviation, and image blurring. The enveloping design of ELVSS trace 24 effectively shields these interferences, ensuring stable and accurate data signal transmission. For example, in the displays of high-end smartphones, the requirements for image clarity and color reproduction are extremely high; even the slightest signal interference can be detected by the user. Through the shielding effect of ELVSS trace 24, the stability of data transmission is guaranteed, presenting users with a clear and vibrant picture.

[0073] Example 3

[0074] A display device includes a display panel as described above.

[0075] This display device can be used in a wide range of applications, including smartwatches, smart home devices, and vehicle dashboards. Through optimized ELVSS routing design or the addition of multiple layers of protective circuitry, the display device significantly improves its anti-interference capabilities, preventing screen damage caused by ESD damage to data transmission lines.

[0076] It should be noted that the above description describes some embodiments of this disclosure. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in a different order than that shown in the above embodiments and still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0077] This disclosure is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A display panel having a circular display area and a non-display area surrounding the display area, characterized in that, include: substrate; A driving layer is disposed on the substrate and covers a display area and a non-display area. The driving layer includes data transmission lines located in the non-display area and pixel driving circuits located in the display area. The data transmission lines are used to transmit signals to the corresponding pixel driving circuits. The driving layer includes a first metal line, which is disposed radially outside the data transmission trace and is electrically grounded to release static electricity in the data transmission trace. A light-emitting layer is disposed on the side of the driving layer away from the substrate, and the light-emitting layer includes an anode, a light-emitting device, and a cathode stacked on the driving layer; An encapsulation layer is disposed on the side of the light-emitting layer away from the light-emitting layer, and the encapsulation layer is used to seal the light-emitting layer.

2. The display panel according to claim 1, characterized in that, The driving layer also includes a plurality of second metal lines, all of which are disposed between the data transmission trace and the first metal line; Preferably, the plurality of second metal wires are arranged independently and in parallel.

3. The display panel according to claim 2, characterized in that, The distance between the second metal wire and the first metal wire is less than the distance between the second metal wire and the data transmission trace.

4. The display panel according to claim 2, characterized in that, The driving layer also includes an ELVSS trace, which is located radially inside the second metal line and on the outside of the thickness direction of the data transmission trace.

5. The display panel according to claim 2, characterized in that, Includes a touch film layer, which is disposed on the encapsulation layer; It also includes a third metal line disposed within the touch film layer.

6. The display panel according to claim 5, characterized in that, The third metal line and the data transmission trace are not overlapped in the thickness direction; Preferably, the orthographic projection of the third metal line on the driving layer does not overlap with the data transmission trace.

7. The display panel according to claim 5, characterized in that, The third metal wire partially overlaps with the second metal wire in the thickness direction. Preferably, the orthographic projection of the third metal wire onto the driving layer partially overlaps with that of the second metal wire; The orthogonal projection of the third metal line on the driving layer may or may not overlap with the ELVSS trace portion.

8. A display panel having a circular display area and a non-display area surrounding the display area, characterized in that, include: substrate; A driving layer, wherein the driving layer has data transmission traces and ELVSS traces in the non-display area, the distance between the ELVSS traces and the edge of the driving layer is less than the distance between the data transmission traces and the edge of the driving layer, and a pixel driving circuit located in the display area; A light-emitting layer is disposed on the side of the driving layer away from the substrate, and the light-emitting layer includes an anode, a light-emitting device, and a cathode stacked on the driving layer; An encapsulation layer is disposed on the light-emitting layer away from the light-emitting layer, and the encapsulation layer is used to seal the light-emitting layer; A touch film layer is disposed on the side of the encapsulation layer away from the encapsulation layer.

9. The display panel according to claim 8, characterized in that, Along the thickness direction of the display panel, the ELVSS traces cover multiple data transmission traces.

10. A display device comprising a display panel as claimed in any one of claims 1-7 or the display panel as claimed in claim 8 or 9.

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