Display panel and display device

Abstract

The invention provides a display panel and a display device. Relates to the technical field of display. The display panel includes: a non-display area including a plurality of driving circuits and a plurality of conductive structures; the driving circuit comprises a master driving circuit and a slave driving circuit, the master driving circuit is electrically connected with the slave driving circuit through a first signal transmission line, and a first pin and a second pin of the slave driving circuit are electrically connected through a second signal transmission line; the first end, close to the first pin, of the second signal transmission line is electrically connected with at least one conductive structure, and the second end, close to the second pin, of the second signal transmission line is electrically connected with at least one conductive structure. At least two conductive structures are utilized to balance electrostatic potentials on multiple paths of signal selection lines, electrostatic discharge breakdown is prevented from occurring at cross positions of the first signal transmission lines and the second signal transmission lines on orthographic projections of the display panel, and then the electrostatic discharge breakdown resistance of the display panel can be improved; and the reliability and the service life of the display panel are improved.

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 driving circuit is used to transmit a driving signal to a pixel circuit, and the pixel circuit is used to present image information under the drive of the driving signal. Therefore, the normal operation of the driving circuit plays a key role in 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, there are many deficiencies in the existing driving circuit layout and signal transmission line settings. For example, due to the dense wiring required for signal transmission, interference or overlap is easily generated between signal transmission lines. For signal transmission lines of different layers, interlayer electrostatic breakdown is easily caused at the intersection, which affects the yield of the display panel and increases 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] A series of simplified concepts are introduced in the Summary of the Invention, which will be further described in detail in the Detailed Description of the Invention. The Summary of the Invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt 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] The non-display area includes 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, 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 arranged 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 at 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 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] 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.

[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 lines, thereby 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-static release breakdown capability of the display panel and improving the reliability and service life of the display panel.

[0031] The display panel of the present invention, other advantages, objectives and features of the present invention will be partially reflected through 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 drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0034] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the exemplary embodiments below. The accompanying drawings are only for the purpose of illustrating exemplary embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent 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 provided by 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 purposes, features and advantages of the present application, the scheme of the present application will be further described below. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0043] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present 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 an order other than that illustrated or described herein. In addition, the terms "including" and "having" and any of their variations 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 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 described embodiments are only part of the embodiments of the present application, rather than 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 may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present application, rather than 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 IC (integrated circuit) for driving the MUX (Multiplexer) attenuates during the transmission process, 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. For example, Figure 1 As shown, AA (Active 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 timing of the output signals of IC1 and IC3 is consistent to ensure the synchronization of the display screen drive. For position A, due to the close distance to IC1 or IC3, the driving signal is stronger. For position B, the distance between IC1 and IC3 is far, the received MUX signal is significantly weakened, the driving voltage is reduced, and the display effect of the display panel is affected. In order 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 electrostatic breakdown of a display panel provided in an embodiment of the present application. Figure 2 In the manner shown, a MUX signal line is added 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 the pin D of IC1 and the node E is shown. Figure 3 As shown, IC1 bump represents the binding pin of IC1, IC2 bump represents the binding pin of IC2, and IC3 bump represents the binding pin of IC3. IC1 bump, IC2 bump, and IC3 bump can be used for each IC to be electrically connected with other electronic components, and the binding pins can be multiple bumps or exposed conductive structures made on the surface of the display panel. 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 also only exemplary, and corresponding wiring connections can be made according to actual needs. Figure 3 , a new MUX2 signal line, i.e., the second signal transmission line, is added, and the intersection point formed with the first signal transmission line sync1 is the intersection node A, and the intersection point formed with the first signal transmission line sync2 is the intersection node B. In addition, since the MUX2 signal line and the signal lines sync1 and sync2 are in different conductive layers, a capacitor can be formed at the intersection of the two. The anti-ESD (Electro-Static discharge) capability here is weak, and interlayer ESD breakdown is prone 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 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 circuits 210 are electrically connected to the pixel circuits 110. The driving circuits 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 a first pin 1 and a 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 near the first pin 1 is electrically connected to at least one conductive structure 220. The second end of the second signal transmission line MUX near the second pin 2 is electrically connected to at least one conductive structure 220. The first signal transmission line and the second signal transmission line are arranged in different conductive layers, and an insulating layer is separated from the different conductive layers. For example, as Figure 4 As shown, there is a cross X between the orthographic projections of the first signal transmission line sync and the second signal transmission line MUX on the display panel.

[0051] Exemplarily, since the first signal transmission line and the second signal transmission line are disposed 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 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 is bound and connected to the display panel. 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 slave driving circuit on one side, i.e., IC1, is used as an example for detailed description below. By reading the relevant description of IC1, the anti-static breakdown solution related to IC3 can be understood. Figure 5 As shown, for IC1, the leftmost bump can be used as the first pin 1 of the slave drive circuit, and the rightmost bump can be used as the second pin 2 of the slave drive circuit. The first pin 1 and the second pin 2 are electrically connected via a multi-channel signal selection line. The conductive structure ET PAD1 is electrically connected to the first pin 1 via the F to 1 segment in the multi-channel signal and selection line MUX1. The conductive structure ET PAD1 is electrically connected to the second pin 2 via the F to E segment in the multi-channel signal selection line MUX1 and the multi-channel signal selection line MUX2. The conductive structure ET PAD2 is electrically connected to the second pin 2 via the multi-channel signal selection line MUX3. Among them, the intersection of MUX3 and MUX2 is the connection node C. Point C is located closer to the second pin 2 than point A. The voltage of the static electricity introduced by ET PAD1 and ET PAD2 can be made substantially equal by adjusting the positions of ET PAD1 and ET PAD2 and the corresponding wiring scheme. In this way, the potential balance between ET PAD1 and ETPAD2 can be ensured, so that there is no ESD release path between ET PAD1 and ET PAD2, thereby avoiding ESD breakdown at the cross position.

[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 lines, thereby 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-static release breakdown capability of the display panel 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-size 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 part of the conductive structure is exposed on the surface of the display panel in the non-display area. Exemplarily, the conductive structure can be made of a conductive material such as a conductor or a semiconductor. Exposing the conductive structure can effectively optimize the product space and reduce costs. In addition, when static electricity is introduced into the conductive structure, the static electricity potential can be balanced by at least two conductive structures. When the potential cannot be balanced, the static electricity can be released through the exposed conductive structure to avoid breakdown of internal components.

[0059] Figure 6 This is another schematic diagram of anti-static breakdown of a display panel provided in an embodiment of the present application. For example, a drive circuit IC1 is used as an example to describe: 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 a 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 a 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, which facilitates the preparation of the display panel.

[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 at the same layer as 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, and then the conductive strip, the conductive structure, and the second signal transmission line are respectively obtained through an 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 connection line between ET PAD2 and the connection node C is MUX3. The vertical distance between MUX3 and the second pin 2 of the driving circuit IC1 can be the distance between the vertical segment of MUX3 and the rightmost side of the second pin 2. Setting this distance to be greater than or equal to 200 μm can provide sufficient space for effective binding of the IC and ensure the accuracy of the IC.

[0062] In some embodiments, Figure 6 As shown, the length direction of the conductive strip S1 intersects with the length direction of the electrically connected second signal transmission line MUX1. The length direction of the conductive strip S2 intersects with the length direction of the electrically connected second signal transmission line MUX3. Therefore, by using the long strip of the conductive strip itself as the side to which the ESD is transmitted by the second signal transmission line, the ESD release can be completed to the greatest extent, the releasable potential can be increased, and the anti-ESD capability of the display panel can be improved.

[0063] 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. Figure 6 Taking the 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. Thus, while optimizing the panel space design, the ESD release capability can also be guaranteed.

[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 the 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 above, the conductive structure can be set on the surface of the display panel exposed in the non-display area. Compared with the conductive structure, the conductive strip is encapsulated inside the circuit, so the internal space design needs to be considered. Setting the area of ​​the conductive strip to be less than half of the area of ​​the conductive structure can effectively meet the requirements of completing ESD release at the conductive strip and optimize the internal space of the panel.

[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 the conductive strip S1 as an example, the conductive structure closest to it is ET PAD1, and the distance between the two is set to be greater than 200μm. For example, in the lighting test phase, the probe is inserted into ET PAD1. If the distance between ET PAD1 and S1 is 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 conductive structure closest to the conductive strip is set to be greater than 200μm. In addition, it can also prevent static electricity from being 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, Figure 5 and Figure 6 As shown, the second signal transmission line includes a main line segment a and a connecting line segment b, the connecting line segment b is connected to the conductive structures ET PAD1 and ET PAD2, the main line segment a is connected between the two connecting line segments b, and the length of the main line segment a is greater than the length of each connecting line segment b. The conductive structures ET PAD1 and ET PAD2 are located at the lower side of the slave driving circuit IC1, and the main line segment a of the second signal transmission line is located at the upper side of the slave driving circuit. In some embodiments, the conductive structure can also be located at the upper side of the slave driving circuit, and the main line segment of the second signal transmission line is located at the lower side of the slave driving circuit. The positions of the main line segments of the conductive structure and the second signal transmission line can be reasonably set according to the internal spatial layout design of the panel. If the main line segments of the conductive structure and the second signal transmission line are set on the same side of the slave driving circuit, it may cause the slave driving circuit and the pin connection of the slave driving circuit to be the far end of the static discharge after the conductive structure introduces static electricity, increasing the possibility of static electricity 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 breakdown capability of the display panel can be improved, and the reliability and service life of the display panel can be improved.

[0068] In some embodiments, Figure 5 and Figure 6 As shown, the master drive circuit IC2 is located between at least two slave drive circuits IC1 and IC3. The master drive circuit IC2 can be electrically connected to the slave drive circuits IC1 and IC3 via synchronization signal lines sync1 and sync2. The master drive circuit IC2 is used to transmit synchronization signals to the electrically connected slave drive circuits IC1 and IC3 to control the slave drive circuits IC1 and IC3 to output consistent signals. 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 through the third signal transmission line EE. Figure 2 The third signal transmission line is a line segment between the two intersections of the newly added MUX signal line and the MUX signal line. This can ensure the effective transmission of the driving signal at position B. At the same time, the third signal transmission line and the second signal transmission line are set as an integrated structure, which can effectively simplify the preparation process and improve the panel production efficiency.

[0071] In some implementations, 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 A schematic block diagram of a display device provided in an embodiment of the present application is shown in FIG. 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. The smart wearable device may include AR (augmented reality) device and VR (virtual reality) device, etc., which is not specifically limited by 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, which will not be described here for the sake of brevity.

[0075] In the several embodiments provided in the present 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 only schematic, for example, the division of units is only a logical function division, and there may be other division methods in actual implementation, 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] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0077] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of 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 to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), disk or optical disk and other media that can store program codes.

[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 aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein by equivalents. 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 comprises 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, characterized in that: The second signal transmission line forms a first path with the first end and the second end respectively, the second signal transmission line forms a second path with the first pin and the second pin respectively, and the intersection position of the first path and the second path is a connection node; A conductive strip is disposed between the connection node and the conductive structure closest to the connection node, and the conductive strip is electrically connected to the first path.

3. The display panel according to claim 2, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that: The intersection point 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, characterized in that: The first pin and the second pin are respectively located at 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, 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 1, characterized in that: The master driving circuit is electrically connected to the slave driving circuit via the plurality of 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, characterized in that: 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, characterized in that: 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 invention comprises the display panel as claimed in any one of claims 1 to 11.

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