Display panel and display device

Abstract

The present invention provides a display panel and a display device. It relates to the field of display technology. The display panel includes: a non-display area, including multiple drive circuits and multiple conductive structures; the drive circuit includes a master drive circuit and a slave drive circuit, the master drive circuit is electrically connected to the slave drive circuit via a first signal transmission line, and the first pin and the second pin of the slave drive circuit are electrically connected via a second signal transmission line; the first end of the second signal transmission line close to the first pin is electrically connected to at least one conductive structure, and the second end of the second signal transmission line close to the second pin is electrically connected to at least one conductive structure. At least two conductive structures are used to balance the electrostatic potential on the multi-channel signal selection line, avoiding electrostatic discharge breakdown at the intersection of the first signal transmission line and the second signal transmission line on the positive projection of the display panel, thereby improving the anti-electrostatic discharge breakdown capability of the display panel and improving the reliability and service life of the display panel.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and more particularly, to a display panel and a display device. Background Art

[0002] In a display panel, a driver circuit is used to transmit a drive signal to a pixel circuit, which in turn displays image information under the influence of the drive signal. Therefore, the normal operation of the driver circuit plays a key role in ensuring the normal display of the display panel, and the stability and reliability of its signal transmission directly affect the display effect of the display panel. However, existing driver circuit layouts and signal transmission line settings have many shortcomings. For example, due to the dense wiring required for signal transmission, interference or overlap between signal transmission lines is prone to occur. Interlayer electrostatic breakdown is also prone to occur at the intersection of signal transmission lines on different layers, affecting the yield of the display panel and increasing the risk of using the display panel.

[0003] Therefore, a new technical solution is urgently needed to solve the above technical problems. Summary of the Invention

[0004] The Summary of the Invention introduces a series of simplified concepts that will be further described in the Detailed Description of the Invention. The Summary of the Invention is not intended to limit the key features and essential features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0005] In a first aspect, the present invention provides a display panel, comprising:

[0006] a display area including a plurality of pixel circuits;

[0007] a non-display area comprising a plurality of driving circuits and a plurality of conductive structures, wherein the driving circuits are electrically connected to the pixel circuits;

[0008] The driving circuit includes a master driving circuit and a slave driving circuit, the master driving circuit is electrically connected to the slave driving circuit via a first signal transmission line, and the first pin and the second pin of the slave driving circuit are electrically connected via a second signal transmission line;

[0009] A first end of the second signal transmission line close to the first pin is electrically connected to at least one conductive structure, and a second end of the second signal transmission line close to the second pin is electrically connected to at least one conductive structure;

[0010] The first signal transmission line and the second signal transmission line are arranged in different conductive layers, and an insulating layer is provided between the different conductive layers. The orthographic projections of the first signal transmission line and the second signal transmission line on the display panel intersect.

[0011] In some embodiments, the second signal transmission line forms a first path with the first end and the second end respectively, and the second signal transmission line forms a second path with the first pin and the second pin respectively, and the intersection of the first path and the second path is a connection node;

[0012] A conductive strip is provided between the connection node and the nearest conductive structure, and the conductive strip is electrically connected to the first path.

[0013] In some embodiments, a length direction of the conductive strip intersects with a length direction of the electrically connected second signal transmission line.

[0014] In some embodiments, in the length direction of the conductive strip, the size of the conductive strip is less than or equal to the size of the conductive structure; and / or,

[0015] The ratio of the area of ​​the conductive structure to the area of ​​the conductive strip is greater than 2; and / or,

[0016] The distance between the conductive strip and the conductive structure closest to the conductive strip is greater than 200 μm.

[0017] In some embodiments, at least a portion of the conductive structure is exposed on the surface of the display panel in the non-display area.

[0018] In some embodiments, the conductive strip, the conductive structure, and the second signal transmission line are disposed on the same conductive layer.

[0019] In some embodiments, the intersection of the first signal transmission line and the second signal transmission line is a cross node, and the cross node, the connection node, and the conductive strip are all located on the same side of the conductive structure.

[0020] In some embodiments, the first pin and the second pin are located on different sides of the slave driving circuit; and / or,

[0021] The second signal transmission line includes a main line segment and a connecting line segment, the connecting line segment is connected to the conductive structure, the main line segment is connected between the two connecting line segments, the length of the main line segment is greater than the length of the connecting line segment, and the conductive structure and the main line segment of the second signal transmission line are respectively located on different sides of the driving circuit; and / or,

[0022] The master driving circuit is located between at least two slave driving circuits.

[0023] In some embodiments, the master driving circuit is electrically connected to the slave driving circuit via a plurality of first signal transmission lines; and / or,

[0024] A vertical distance between a connection line between the conductive structure and the connection node and a pin of the driving circuit is greater than or equal to 200 μm.

[0025] In some embodiments, the second signal transmission line includes a multi-path signal selection line;

[0026] The driving circuit includes a driving chip.

[0027] In some embodiments, the second signal transmission lines connected to different slave driving circuits are electrically connected via a third signal transmission line;

[0028] The third signal transmission line and the second signal transmission line are an integrated structure.

[0029] In a second aspect, a display device is also proposed, comprising the display panel as described above.

[0030] According to the above technical solution, a conductive structure is added to the driving circuit, and at least two conductive structures are used to balance the electrostatic potential on the multi-channel signal selection line, thereby avoiding electrostatic discharge and breakdown at the intersection of the first signal transmission line and the second signal transmission line on the positive projection of the display panel, thereby improving the display panel's anti-static discharge and breakdown capability, and improving the reliability and service life of the display panel.

[0031] The display panel of the present invention, and other advantages, objectives and features of the present invention will be partially reflected in the following description, and will also be partially understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0034] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the exemplary embodiments below. The accompanying drawings are for illustration purposes only and are not to be considered limiting of the present application. Throughout the accompanying drawings, the same reference symbols denote the same components. In the accompanying drawings:

[0035] Figure 1 A schematic block diagram of a display panel provided in an embodiment of the present application;

[0036] Figure 2 A schematic block diagram of another display panel provided in an embodiment of the present application;

[0037] Figure 3 A schematic diagram of electrostatic breakdown of a display panel provided in an embodiment of the present application;

[0038] Figure 4 A schematic structural block diagram of a display panel provided in an embodiment of the present application;

[0039] Figure 5 A schematic diagram of anti-static breakdown of a display panel provided in an embodiment of the present application;

[0040] Figure 6 A schematic diagram of another display panel anti-static breakdown method provided in an embodiment of the present application;

[0041] Figure 7 A schematic block diagram of a display device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0042] In order to more clearly understand the above-mentioned objectives, features and advantages of the present application, the scheme of the present application will be further described below. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0043] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or that are inherent to these processes, methods, products or devices. The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments.

[0044] In the following description, many specific details are set forth to facilitate a full understanding of the present application, but the present application can also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present application, not all of the embodiments.

[0045] With the rapid development of automotive LCD (Liquid Crystal Display) products, the lateral size of automotive LCD products is getting larger and larger. The signal output by a single integrated circuit (IC) to drive the MUX (Multiplexer) suffers from signal attenuation during transmission, resulting in insufficient MUX drive and causing problems such as abnormal display on the display panel.

[0046] Figure 1 A schematic block diagram of a display panel provided in an embodiment of the present application is shown. For example, Figure 1 As shown, the AA (Active Area) area is the effective display area of ​​the display panel. IC1 and IC3 can generate MUX signals, and IC2 is used to provide synchronization signals to IC1 and IC3. The synchronization signal can ensure that the output signal timing of IC1 and IC3 is consistent, thereby ensuring the synchronization of the display screen drive. For position A, due to its close distance to IC1 or IC3, the drive signal is stronger. For position B, the distance from both IC1 and IC3 is far, and the received MUX signal is significantly weakened, the drive voltage is reduced, and the display effect of the display panel is affected. To solve this technical problem, a MUX signal line can be added between IC1 and position B, and between IC3 and position B.

[0047] Figure 2 A schematic block diagram of another display panel provided in an embodiment of the present application. For example, Figure 2 As shown, IC1 and IC3 provide MUX signals to position B via the newly added MUX signal wiring to ensure that position B of the display panel can display normally.

[0048] Figure 3 A schematic diagram of an electrostatic breakdown of a display panel provided in an embodiment of the present application. Figure 2 The method shown in the figure adds a MUX signal line between IC1 and position B and between IC3 and position B. Taking IC1 as an example, the newly added MUX signal line is Figure 3 The connection MUX2 between pin D of IC1 and node E is shown. Figure 3 As shown, IC1 bumps represent the bonding pins of IC1, IC2 bumps represent the bonding pins of IC2, and IC3 bumps represent the bonding pins of IC3. IC1 bumps, IC2 bumps, and IC3 bumps can be used to electrically connect each IC to other electronic components. The bonding pins can be multiple bumps or exposed conductive structures fabricated on the display panel surface. Figure 3The number of bumps of each IC type is only exemplary and does not mean a specific limitation on IC bumps. It can be reasonably set according to actual requirements such as packaging parameters. IC2 can transmit synchronization signals to IC1 and IC3 through the first signal transmission lines sync1 and sync2, wherein, Figure 3 The connection of the first signal transmission line shown is only exemplary, and corresponding wiring connections can be made according to actual needs. Figure 3 The newly added MUX2 signal line, or second signal transmission line, forms an intersection point A with the first signal transmission line sync1, and a crossover point B with the first signal transmission line sync2. Furthermore, because the MUX2 signal line and the signal lines sync1 and sync2 are on different conductive layers, a capacitor is formed at their intersection. This location has weak ESD (electrostatic discharge) resistance, making interlayer ESD breakdown more likely to occur.

[0049] For example, Figure 3 As shown, ET PAD1 can be a conductive structure, which can introduce static electricity under certain probability. According to the ESD remote release principle, the static electricity can be released through the path F→E→B→A, and finally at the intersection A formed by the second signal transmission line MUX2 and the first signal transmission line sync1, causing the line at the intersection A to break down, resulting in a short circuit between the layer where the second signal transmission line MUX2 is located and the layer where the first signal transmission line sync1 is located, causing abnormal display problems on the display panel.

[0050] In some examples, a display panel is presented. Figure 4 This is a schematic structural block diagram of a display panel provided in an embodiment of the present application. For example, Figure 4As shown, the display panel may include a display area 100 and a non-display area 200. The non-display area 200 is arranged around the display area 100. The display area 100 may include a plurality of pixel circuits 110. The non-display area 200 may include a plurality of driving circuits 210 and a plurality of conductive structures 220, and the driving circuit 210 is electrically connected to the pixel circuit 110. The driving circuit 210 may include a master driving circuit 211 and a slave driving circuit 212, the master driving circuit 211 is electrically connected to the slave driving circuit 212 via a first signal transmission line sync, and the first pin 1 and the second pin 2 of the slave driving circuit 212 are electrically connected via a second signal transmission line MUX. The first end of the second signal transmission line MUX is electrically connected to at least one conductive structure 220 near the first pin 1. The second end of the second signal transmission line MUX is electrically connected to at least one conductive structure 220 near the second pin 2. The first signal transmission line and the second signal transmission line are arranged in different conductive layers, and the different conductive layers are separated by an insulating layer. For example, as Figure 4 As shown, the orthographic projections of the first signal transmission line sync and the second signal transmission line MUX on the display panel have an intersection X.

[0051] For example, since the first signal transmission line and the second signal transmission line are provided in different conductive layers, Figure 4 As shown, the intersection X formed by the orthographic projection of the first signal transmission line sync and the second signal transmission line MUX on the display panel is not a point, but an intersection area formed by two different conductive layers at the same position. The area of ​​the intersection area here is affected by the wiring parameters of the first signal transmission line sync and the second signal transmission line MUX. Combined with the above, in order to avoid ESD remote release causing breakdown at the intersection, the present application Figure 3 A new conductive structure is added on the basis.

[0052] For example, when the driving circuit is a driving chip, the driving chip can be connected to the display panel through pin binding, so that the driving chip and the display panel are bound and connected. The driving chip can be electrically connected to the control circuit board of the display device through a flexible circuit board.

[0053] Exemplarily, the driving circuit may be integrated on the display panel.

[0054] Figure 5 A schematic diagram of an anti-static breakdown display panel provided in an embodiment of the present application. For example, Figure 4 As shown, for one driving circuit 210, at least two conductive structures 220 may be provided. Figure 5In the embodiment shown, the driving circuit may include a driving chip IC. IC2 may be a master driving circuit, and IC1 and IC3 may be slave driving circuits. For ease of description and understanding, the following description will be made in detail using one slave driving circuit, IC1, as an example. By reading the description of IC1, you can understand the anti-static breakdown solution related to IC3. Figure 5 As shown, for IC1, the leftmost bump can serve as the first pin 1 of the slave driver circuit, and the rightmost bump can serve as the second pin 2 of the slave driver circuit. The first pin 1 and the second pin 2 are electrically connected via a multiplexed signal selection line. The conductive structure ET PAD1 is electrically connected to the first pin 1 via the F to 1 segment of the multiplexed signal selection line MUX1. The conductive structure ET PAD1 is electrically connected to the second pin 2 via the F to E segment of the multiplexed signal selection line MUX1 and the multiplexed signal selection line MUX2. The conductive structure ET PAD2 is electrically connected to the second pin 2 via the multiplexed signal selection line MUX3. The intersection of MUX3 and MUX2 is connection node C. Point C is closer to the second pin 2 than point A. By adjusting the positions of ET PAD1 and ET PAD2 and the corresponding wiring scheme, the static voltages introduced by ET PAD1 and ET PAD2 can be made substantially equal. This ensures potential balance between ET PAD1 and ETPAD2, so that there is no ESD release path between ET PAD1 and ET PAD2, thus avoiding ESD breakdown at the intersection.

[0055] According to the above technical solution, a conductive structure is added to the driving circuit, and at least two conductive structures are used to balance the electrostatic potential on the multi-channel signal selection line, thereby avoiding electrostatic discharge and breakdown at the intersection of the first signal transmission line and the second signal transmission line on the positive projection of the display panel, thereby improving the display panel's anti-static discharge and breakdown capability, and improving the reliability and service life of the display panel.

[0056] It should be noted that Figure 5 The shapes of the conductive structures shown are only exemplary and may be Figure 5 The rectangle shown may also be any shape such as a circle, a triangle or an irregular shape, and may be reasonably set according to parameters such as the size of the display panel and the position of related wiring, and is not limited here.

[0057] It should be noted that the above solution is only described using a horizontally large-sized product as an example. When the vertical size of the product is larger, the above technical solution can also be used to improve the ESD resistance of the display panel. For the sake of brevity, it will not be repeated here.

[0058] In some embodiments, at least a portion of the conductive structure is exposed on the surface of the display panel in the non-display area. For example, the conductive structure can be made of a conductive material such as a conductor or semiconductor. Exposing the conductive structure can effectively optimize product space and reduce costs. Furthermore, when static electricity is introduced into the conductive structure, the static electricity potential can be balanced by at least two conductive structures. If the potential cannot be balanced, the static electricity can be discharged through the exposed conductive structure to prevent breakdown of internal components.

[0059] Figure 6 This is a schematic diagram of another display panel anti-static breakdown provided by an embodiment of the present application. For example, the driving circuit IC1 on one side is used as an example for description. Figure 6 As shown, the second signal transmission line includes MUX1, MUX2 and MUX3, which respectively form a first path with the first end F and the second end H, wherein the first path includes the path F→E→H. The second signal transmission line forms a second path with the first pin 1 and the second pin 2, wherein the second path includes the path 1→E→2. The intersection of the first path and the second path is the connection node G and C. A conductive strip S1 is provided between the connection node G and the nearest conductive structure ET PAD1. A conductive strip S2 is provided between the connection node C and the nearest conductive structure ET PAD2. The conductive strips S1 and S2 are electrically connected to the first path. In some embodiments, as Figure 6 As shown, the intersection nodes A and B, the connection nodes G and C, and the conductive strips S1 and S2 are all located on the same side of the conductive structure, ie, above the conductive structures ET PAD1 and ET PAD2, to facilitate display panel preparation.

[0060] For example, the conductive strip can form a capacitor with the conductive structure of the adjacent layer. According to the ESD remote release principle, the conductive strip is arranged at Figure 6 The position shown can ensure that when the internal ESD cannot be balanced, the ESD is released at the position of the conductive strip. The conductive strip can be set at the same layer as the first signal transmission line or the second signal transmission line. In some embodiments, the conductive strip, the conductive structure and the second signal transmission line are set in the same conductive layer. Setting the conductive strip, the conductive structure and the second signal transmission line in the same layer can simplify the preparation process, and the same material can be directly filled in the same layer. After that, the conductive strip, the conductive structure and the second signal transmission line are obtained respectively through the etching process, thereby improving the production efficiency of the display panel.

[0061] In some embodiments, the vertical distance between the connection line between the conductive structure and the connection node and the pin of the driving circuit is greater than or equal to 200 μm. Figure 6As shown, taking ET PAD2 as an example, the line connecting ET PAD2 and connection node C is MUX3. The vertical distance between MUX3 and second pin 2 of driver circuit IC1 can be the distance between the vertical segment of MUX3 and the rightmost edge of second pin 2. Setting this distance to greater than or equal to 200μm provides sufficient space for effective IC bonding and ensures IC accuracy.

[0062] In some embodiments, as Figure 6 As shown, the length of the conductive strip S1 intersects with the length of the electrically connected second signal transmission line MUX1. The length of the conductive strip S2 intersects with the length of the electrically connected second signal transmission line MUX3. Therefore, using the conductive strip itself as the second signal transmission line to which ESD is transmitted maximizes ESD discharge, increases the releasable potential, and improves the display panel's ESD resistance.

[0063] In some embodiments, the size of the conductive strip is smaller than or equal to the size of the conductive structure in the length direction of the conductive strip. Figure 6 Taking conductive strip S1 as an example, the length of S1 is less than the length of ET PAD1. Alternatively, the length of the conductive strip can be equal to the length of the conductive structure. This optimizes the panel space design while ensuring ESD relief capability.

[0064] In some embodiments, the ratio of the area of ​​the conductive structure to the area of ​​the conductive strip is greater than 2. Figure 6 As shown, taking conductive strip S1 as an example, the ratio of the area of ​​the conductive structure ET PAD1 to the panel of S1 is significantly greater than 2. Combined with the aforementioned, while the conductive structure can be exposed on the surface of the display panel in the non-display area, the conductive strip is encapsulated within the circuit, requiring consideration of internal space design. Setting the area of ​​the conductive strip to less than half the area of ​​the conductive structure effectively ensures ESD discharge at the conductive strip and optimizes the panel's internal space.

[0065] In some embodiments, the distance between the conductive strip and the conductive structure closest to the conductive strip is greater than 200 μm. Figure 6As shown, taking conductive strip S1 as an example, the closest conductive structure is ET PAD1, and the distance between them is set to greater than 200μm. For example, during the lighting test phase, a probe is inserted into ET PAD1. If the distance between ET PAD1 and S1 is too close, the probe is likely to scratch S1, thereby affecting the protective effect of the conductive strip. Therefore, the distance between the conductive strip and the closest conductive structure is set to greater than 200μm. This also prevents static electricity generated between the conductive strip and the conductive structure due to the close distance, thereby introducing new ESD into the circuit.

[0066] In some embodiments, as Figure 5 and Figure 6 As shown, the second signal transmission line includes a main segment a and a connecting segment b. Connecting segment b connects to the conductive structures ET PAD1 and ET PAD2. Main segment a connects between the two connecting segments b, and the length of main segment a is greater than the length of each connecting segment b. The conductive structures ET PAD1 and ET PAD2 are located below the slave driver circuit IC1, while the main segment a of the second signal transmission line is located above the slave driver circuit. In some embodiments, the conductive structure can also be located above the slave driver circuit, with the main segment of the second signal transmission line located below the slave driver circuit. The positions of the conductive structure and the main segment of the second signal transmission line can be appropriately determined based on the internal spatial layout of the panel. If the main segments of the conductive structure and the second signal transmission line are located on the same side of the slave driver circuit, static electricity introduced into the conductive structure may result in the slave driver circuit and its pin connections being at the far end of the static discharge path, increasing the likelihood of electrostatic breakdown.

[0067] Therefore, by arranging the conductive structure and the main line segment of the second signal transmission line on different sides of the driving circuit, the anti-static discharge and breakdown capability of the display panel can be improved, and the reliability and service life of the display panel can be increased.

[0068] In some embodiments, as Figure 5 and Figure 6 As shown, the master driver circuit IC2 is located between at least two slave driver circuits IC1 and IC3. The master driver circuit IC2 can be electrically connected to the slave driver circuits IC1 and IC3 via synchronization signal lines sync1 and sync2. The master driver circuit IC2 is used to transmit synchronization signals to the electrically connected slave driver circuits IC1 and IC3 to control the output signals of the slave driver circuits IC1 and IC3 to be consistent. Figure 5 and Figure 6As shown, the number of slave drive circuits is 2. When the number of slave drive circuits is greater, the master drive circuit is set between multiple slave drive circuits to ensure that the total routing of all synchronization signal lines is the shortest and the length of each synchronization signal line is basically equal, thereby avoiding synchronization signal transmission delays and optimizing space design.

[0069] In some embodiments, the second signal transmission lines connected to different slave driving circuits are electrically connected through a third signal transmission line; the third signal transmission line and the second signal transmission line are an integrated structure.

[0070] For example, Figure 5 and Figure 6 As shown, the second signal transmission lines of different slave driving circuits are electrically connected via the third signal transmission line EE. Figure 2 The third signal transmission line is the line segment between the two intersections of the newly added MUX signal line and the MUX signal line. This ensures effective transmission of the drive signal at position B. Simultaneously, integrating the third signal transmission line with the second signal transmission line effectively simplifies the manufacturing process and improves panel production efficiency.

[0071] In some embodiments, the present application provides a display module, which includes a display panel as provided in the above embodiments.

[0072] According to a second aspect of the present application, a display device is also provided. Figure 7 This is a schematic block diagram of a display device provided in an embodiment of the present application. For example, Figure 7 As shown, the display device 700 may include the display panel described above.

[0073] For example, the display device of the embodiment of the present application can be applied to scenarios such as vehicle-mounted display, computer, medical display, television, smart wearable display, etc. Smart wearable devices may include AR (augmented reality) devices and VR (virtual reality) devices, etc., which are not specifically limited in the embodiment of the present application.

[0074] A person skilled in the art may understand the specific details and beneficial effects of the display device by reading the above description of the display panel, and will not be described in detail here for the sake of brevity.

[0075] In the several embodiments provided in this application, it should be understood that the disclosed devices and / or equipment can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0076] Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0077] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0078] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0079] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A display panel, characterized in that: include: a display area including a plurality of pixel circuits; a non-display area, comprising a plurality of driving circuits and a plurality of conductive structures, wherein the driving circuits are electrically connected to the pixel circuits; The driving circuit includes a master driving circuit and a slave driving circuit, the master driving circuit is electrically connected to the slave driving circuit via a first signal transmission line, and the first pin and the second pin of the slave driving circuit are electrically connected via a second signal transmission line; A first end of the second signal transmission line close to the first pin is electrically connected to at least one of the conductive structures, and a second end of the second signal transmission line close to the second pin is electrically connected to at least one of the conductive structures; The first signal transmission line and the second signal transmission line are arranged in different conductive layers, and an insulating layer is provided between the different conductive layers. The orthographic projections of the first signal transmission line and the second signal transmission line on the display panel intersect.

2. The display panel according to claim 1, wherein: The second signal transmission line forms a first path with the first end and the second end respectively, and the second signal transmission line forms a second path with the first pin and the second pin respectively, and the intersection of the first path and the second path is a connection node; A conductive strip is provided between the connection node and the conductive structure closest thereto, and the conductive strip is electrically connected to the first path.

3. The display panel according to claim 2, wherein: The length direction of the conductive strip intersects with the length direction of the electrically connected second signal transmission line.

4. The display panel according to claim 3, wherein: In the length direction of the conductive strip, the size of the conductive strip is smaller than or equal to the size of the conductive structure; and / or, The ratio of the area of ​​the conductive structure to the area of ​​the conductive strip is greater than 2; and / or, The distance between the conductive strip and the conductive structure closest to the conductive strip is greater than 200 μm.

5. The display panel according to claim 1, wherein: At least a portion of the conductive structure is exposed on the surface of the display panel in the non-display area.

6. The display panel according to claim 2, wherein: The conductive strips, the conductive structures and the second signal transmission lines are arranged on the same conductive layer.

7. The display panel according to claim 6, wherein: The intersection of the first signal transmission line and the second signal transmission line is a cross node, and the cross node, the connection node, and the conductive strip are all located on the same side of the conductive structure.

8. The display panel according to claim 1, wherein: The first pin and the second pin are respectively located on different sides of the slave driving circuit; and / or, The second signal transmission line includes a main line segment and a connecting line segment, the connecting line segment is connected to the conductive structure, the main line segment is connected between two connecting line segments, the length of the main line segment is greater than the length of the connecting line segment, and the conductive structure and the main line segment of the second signal transmission line are respectively located on different sides of the slave driving circuit; and / or, The master driving circuit is located between at least two of the slave driving circuits.

9. The display panel according to claim 2, wherein: The master driving circuit is electrically connected to the slave driving circuit via a plurality of the first signal transmission lines; and / or, A vertical distance between a connection line between the conductive structure and the connection node and a pin of the driving circuit is greater than or equal to 200 μm.

10. The display panel according to claim 1, wherein The second signal transmission line includes a multi-channel signal selection line; The driving circuit includes a driving chip.

11. The display panel according to claim 1, wherein The second signal transmission lines connected to different slave driving circuits are electrically connected via a third signal transmission line; The third signal transmission line and the second signal transmission line are an integrated structure.

12. A display device, characterized in that: The device comprises the display panel according to any one of claims 1 to 11.

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