Light-emitting substrate and display device

Abstract

The present application relates to the technical field of display, and discloses a light-emitting substrate and a display device. The light-emitting substrate comprises a base, a first conductive layer, a second conductive layer, and a plurality of light-emitting units. The second conductive layer is provided in the light-emitting substrate, and the second conductive layer can be used for grounding. Therefore, introduced static electricity can be conducted away by the second conductive layer, so that the probability that static electricity is introduced into the first conductive layer is low, thus, it can be ensured that the structure in a driving backplane in the light-emitting substrate is not prone to failure due to being affected by static electricity, and then the reliability of the light-emitting substrate can be improved. In addition, the second conductive layer may have a plurality of clearance openings in one-to-one correspondence with the plurality of light-emitting units, and the orthographic projection of each clearance opening on the base overlaps the orthographic projection of a corresponding light-emitting unit on the base. In this way, it can be ensured that the second conductive layer distributed between the first conductive layer and the plurality of light-emitting units does not affect the connection between the light-emitting units and conductive contacts in the first conductive layer.

Description

Light-emitting substrate and display device TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a light-emitting substrate and a display device. BACKGROUND

[0002] With the development of the display technical field, the light-emitting diode (mini Light-Emitting Diode, LED for short) display substrate has the advantages of high color purity, wide dynamic range, high brightness, high definition, low working voltage, small power consumption, long service life, impact resistance, large viewing angle and stable and reliable working, and will become the most advantageous new generation of display media and has been widely used.

[0003] At present, the LED display substrate usually includes a driving backboard and a plurality of LEDs located on one side of the driving backboard. The driving backboard can send driving signals to each LED, so that the LED can emit corresponding light, and thus the LED display substrate can present a corresponding display picture.

[0004] However, during the preparation and transportation of the driving backboard, static electricity is easily introduced into the interior of the driving backboard, so that the structure in the interior of the driving backboard is easily affected by static electricity and fails, and thus the reliability of the display substrate integrated with the driving backboard is low.

[0005] SUMMARY

[0006] The embodiments of the present application provide a light-emitting substrate and a display device. The technical solution can solve the problem of low reliability of the display substrate, and the technical solution is as follows:

[0007] The embodiments of the present application provide a light-emitting substrate and a display device. The technical solution can solve the problem of low reliability of the display substrate, and the technical solution is as follows:

[0008] In one aspect, a light-emitting substrate is provided, comprising:

[0009] a substrate;

[0010] a first conductive layer located on one side of the substrate, the first conductive layer having a plurality of conductive contacts;

[0011] a second conductive layer located on the side of the first conductive layer away from the substrate, the second conductive layer being insulated from the first conductive layer and being used for grounding;

[0012] and a plurality of light-emitting units located on the side of the second conductive layer away from the substrate, the light-emitting units being electrically connected to at least part of the conductive contacts;

[0013] The second conductive layer has a plurality of avoidance openings corresponding to the plurality of light emitting units, and a projection of the avoidance opening on the substrate overlaps a projection of the corresponding light emitting unit on the substrate.

[0014] Optionally, the second conductive layer includes a plurality of first auxiliary leads extending along a first direction, and / or a plurality of second auxiliary leads extending along a second direction, the first direction intersecting the second direction.

[0015] At least one of the plurality of first auxiliary leads and the plurality of second auxiliary leads has the plurality of avoidance openings.

[0016] Optionally, the light emitting substrate further includes a third conductive layer located on a side of the first conductive layer away from the substrate.

[0017] The third conductive layer is located on a side of the second conductive layer away from the first conductive layer, or the third conductive layer is located between the second conductive layer and the first conductive layer.

[0018] The second conductive layer includes a plurality of first auxiliary leads extending along a first direction, or the second conductive layer includes a plurality of second auxiliary leads extending along a second direction, or the second conductive layer includes a plurality of first auxiliary leads extending along a first direction, and the third conductive layer includes a plurality of second auxiliary leads extending along a second direction.

[0019] At least one of the plurality of first auxiliary leads and the plurality of second auxiliary leads has the plurality of avoidance openings.

[0020] Optionally, the light emitting substrate further includes a plurality of first touch signal lines extending along the first direction, and a plurality of second touch signal lines extending along the second direction, the first touch signal lines and the second touch signal lines are arranged in different layers, and the first touch signal lines are closer to the substrate than the second touch signal lines.

[0021] The first touch signal lines and the first auxiliary leads are arranged in the same layer and are made of the same material, and / or the second touch signal lines and the second auxiliary leads are arranged in the same layer and are made of the same material.

[0022] Optionally, when the first touch signal lines and the first auxiliary leads are arranged in the same layer and are made of the same material, the plurality of first auxiliary leads and the plurality of first touch signal lines are spaced and arranged alternately.

[0023] Optionally, when the second touch signal lines and the second auxiliary leads are arranged in the same layer and are made of the same material, the plurality of second auxiliary leads and the plurality of second touch signal lines are spaced and arranged alternately.

[0024] Optionally, the first conductive layer comprises a plurality of driving signal lines extending along the first direction, the driving signal lines being electrically connected with at least part of the conductive contacts;

[0025] Optionally, the driving signal lines and the first touch signal lines are arranged in the same layer and are made of the same material, and the plurality of driving signal lines and the plurality of first touch signal lines are arranged alternately and spaced apart.

[0026] Optionally, in the case that the second conductive layer comprises a plurality of first auxiliary lead lines extending along the first direction, and the third conductive layer comprises a plurality of second auxiliary lead lines extending along the second direction, the plurality of avoiding openings comprises a plurality of first sub-openings distributed on the plurality of first auxiliary lead lines, and a plurality of second sub-openings distributed on the plurality of second auxiliary lead lines;

[0027] Optionally, the plurality of first sub-openings and the plurality of second sub-openings correspond to each other one by one, and the orthographic projection of the first sub-opening on the substrate and the orthographic projection of the corresponding second sub-opening on the substrate overlap.

[0028] Optionally, the light-emitting substrate further comprises a first insulating layer between the plurality of first auxiliary lead lines and the plurality of second auxiliary lead lines, the first insulating layer having a plurality of first through holes, and the plurality of second auxiliary lead lines are overlapped with the plurality of first auxiliary lead lines through the plurality of first through holes.

[0029] Optionally, in the case that the first touch signal lines and the first auxiliary lead lines are arranged in the same layer and are made of the same material, the first touch signal lines and the first auxiliary lead lines are both grid-shaped signal lines.

[0030] And / or, in the case that the second touch signal lines and the second auxiliary lead lines are arranged in the same layer and are made of the same material, the second touch signal lines and the second auxiliary lead lines are both grid-shaped signal lines.

[0031] Optionally, in the case that the light-emitting substrate comprises a third conductive layer, the second conductive layer comprises the plurality of first auxiliary lead lines, and the second touch signal lines are arranged in the same layer as the third conductive layer and are made of the same material, the second touch signal lines are also grid-shaped signal lines.

[0032] Optionally, in the case that the light-emitting substrate comprises a third conductive layer, the second conductive layer comprises the plurality of second auxiliary lead lines, and the first touch signal lines are arranged in the same layer as the third conductive layer and are made of the same material, the first touch signal lines are also grid-shaped signal lines.

[0033] Optionally, the light-emitting substrate further comprises a third conductive layer located on the side of the first conductive layer away from the substrate.

[0034] The third conductive layer is located on a side of the second conductive layer away from the first conductive layer, or the third conductive layer is located between the second conductive layer and the first conductive layer.

[0035] The second conductive layer comprises a plurality of auxiliary lead lines and a first touch signal line insulated from the auxiliary lead lines.

[0036] The third conductive layer comprises a plurality of second touch signal lines.

[0037] The extension direction of the first touch signal line intersects the extension direction of the second touch signal line.

[0038] Optionally, the plurality of light emitting units are arranged in multiple rows along the first direction and multiple columns along the second direction.

[0039] The orthogonal projection of at least one column of the light emitting units on the substrate is distributed between the orthogonal projections of two adjacent first touch signal lines on the substrate, and the orthogonal projection of at least one row of the light emitting units on the substrate is distributed between the orthogonal projections of two adjacent second touch signal lines on the substrate.

[0040] Optionally, the first conductive layer comprises a plurality of driving signal lines, the plurality of driving signal lines comprising a plurality of first power signal lines and a plurality of second power signal lines, the first power signal lines being electrically connected to the second conductive layer, and the first power signal lines being used for grounding.

[0041] Optionally, the light emitting substrate further comprises a second insulating layer between the first conductive layer and the second conductive layer, the second insulating layer having a plurality of second vias, and the second conductive layer being overlapped with the first power signal lines through the plurality of second vias.

[0042] Optionally, the plurality of second vias are divided into a plurality of groups of second vias, one group of the second vias comprising at least two second vias, and the plurality of groups of the second vias corresponding one-to-one to the plurality of avoiding openings.

[0043] The orthogonal projection of at least two second vias in one group of the second vias on the substrate is distributed around the orthogonal projection of the corresponding avoiding opening on the substrate.

[0044] Optionally, the second conductive layer comprises a plurality of auxiliary lead lines, the plurality of auxiliary lead lines being electrically connected to the plurality of first power signal lines through the plurality of second vias.

[0045] The plurality of auxiliary lead lines have a plurality of avoiding openings, and a projection on the substrate of the avoiding openings covers a projection on the substrate of a conductive contact connected to the corresponding light emitting unit.

[0046] In another aspect, a display device is provided, including a driving component, and a light emitting substrate electrically connected to the driving component, the light emitting substrate being the light emitting substrate described above.

[0047] The technical scheme provided by the embodiments of the present application has at least the following beneficial effects:

[0048] A light emitting substrate includes a substrate, a first conductive layer, a second conductive layer, and a plurality of light emitting units. Since the second conductive layer is arranged in the light emitting substrate and can be used for grounding, the introduced static electricity can be conducted away through the second conductive layer, so that the probability of introducing static electricity into the first conductive layer is low, thereby ensuring that the structure inside the driving backboard of the light emitting substrate is not easily affected by static electricity and fails, and further improving the reliability of the light emitting substrate. In addition, the second conductive layer can have a plurality of avoiding openings corresponding to the plurality of light emitting units, and a projection on the substrate of the avoiding openings overlaps with a projection on the substrate of the corresponding light emitting unit. In this way, the second conductive layer distributed between the first conductive layer and the plurality of light emitting units will not affect the connection between the light emitting units and the conductive contacts in the first conductive layer. BRIEF DESCRIPTION OF DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0050] FIG. 1 is a top view of a light emitting substrate according to an embodiment of the present application;

[0051] FIG. 2 is a schematic diagram of the film layer structure of the light emitting substrate shown in FIG. 1 at A-A';

[0052] FIG. 3 is a partial enlarged view of a second conductive layer in a light emitting substrate according to an embodiment of the present application;

[0053] FIG. 4 is a schematic diagram of the structure of a driving backboard in a light emitting substrate according to an embodiment of the present application;

[0054] FIG. 5 is a schematic diagram of the partial structure of a second conductive layer and a third conductive layer according to an embodiment of the present application;

[0055] FIG. 6 is a schematic diagram of the partial structure of a second auxiliary lead line according to an embodiment of the present application;

[0056] FIG. 7 is a schematic diagram of a partial structure of another second auxiliary lead according to an embodiment of the present application;

[0057] FIG. 8 is a top view of a conductive layer provided with a plurality of first auxiliary leads according to an embodiment of the present application;

[0058] FIG. 9 is a top view of a conductive layer provided with a plurality of second auxiliary leads according to an embodiment of the present application;

[0059] FIG. 10 is a partial top view of a light-emitting substrate according to an embodiment of the present application;

[0060] FIG. 11 is a top view of a first conductive layer and a third conductive layer according to an embodiment of the present application;

[0061] FIG. 12 is a partial top view of another light-emitting substrate according to an embodiment of the present application;

[0062] FIG. 13 is a top view of another first conductive layer and a third conductive layer according to an embodiment of the present application;

[0063] FIG. 14 is a partial top view of yet another light-emitting substrate according to an embodiment of the present application;

[0064] FIG. 15 is a partial top view of still another light-emitting substrate according to an embodiment of the present application;

[0065] FIG. 16 is a schematic diagram of a film layer structure of a light-emitting substrate according to an embodiment of the present application;

[0066] FIG. 17 is a partial top view of a light-emitting substrate according to another embodiment of the present application. DETAILED DESCRIPTION

[0067] To make the objectives, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0068] Please refer to FIG. 1 and FIG. 2, FIG. 1 is a top view of a light-emitting substrate according to an embodiment of the present application, and FIG. 2 is a schematic diagram of a film layer structure of the light-emitting substrate at A-A' shown in FIG. 1. The light-emitting substrate can be used as a display substrate capable of directly displaying a picture, or as a backlight panel used for providing a light source for a liquid crystal display panel. The present application does not limit this. The light-emitting substrate 000 can include a substrate 100, a first conductive layer 200, a second conductive layer 300 and a plurality of light-emitting units 400.

[0069] The first conductive layer 200 in the light-emitting substrate 000 can be located on one side of the substrate 100, and the first conductive layer 200 can have a plurality of conductive contacts S. It should be noted that the first conductive layer 200 can be a metal layer made of a metal material. Here, the plurality of conductive contacts S in the first conductive layer 200 are used to electrically connect the plurality of light-emitting units 400.

[0070] In one possible implementation, the conductive contacts S in the first conductive layer 200 can be conductive pads that can be electrically connected to the plurality of light-emitting units 400 by welding. In another possible implementation, the conductive contacts S in the first conductive layer 200 can also be conductive blocks that are connected to the plurality of light-emitting units 400 by a non-welding method, for example, the plurality of light-emitting units 400 can be electrically connected by an anisotropic conductive film (ACF for short).

[0071] The second conductive layer 300 in the light-emitting substrate 000 can be located on the side of the first conductive layer 200 away from the substrate 100. The second conductive layer 300 can be arranged in an insulating manner with the first conductive layer 200. For example, here, the light-emitting substrate 000 can further include a second insulating layer 900 located between the second conductive layer 300 and the first conductive layer 200. The second conductive layer 300 and the first conductive layer 200 can be insulated by the second insulating layer 900.

[0072] The plurality of light-emitting units 400 in the light-emitting substrate 000 can be located on the side of the second conductive layer 300 away from the substrate 100, and the light-emitting units 400 can be electrically connected to at least part of the conductive contacts S in the first conductive layer 200. For example, one light-emitting unit 400 can be electrically connected to a plurality of conductive contacts S in the first conductive layer 200.

[0073] In this application, the light-emitting substrate 000 can further include a driving structure layer distributed on the side of the first conductive layer 200 toward the substrate 100, and the driving structure layer can be electrically connected to the first conductive layer 200. In this way, under the joint action of the driving structure layer and the first conductive layer 200, the plurality of light-emitting units 400 can be driven to emit light. It should be noted that the part of the light-emitting substrate 000 located below the plurality of light-emitting units 400 is the driving backboard in the light-emitting substrate 000, that is, the driving backboard can include the substrate 100, and the first conductive layer 200 and the second conductive layer 300 located on one side of the substrate 100. The plurality of light-emitting units 400 in the light-emitting substrate 000 can be arranged on the driving backboard. Here, below the plurality of light-emitting units 400 refers to the side opposite to the light-emitting direction of the plurality of light-emitting units 400. Moreover, the light-emitting units 400 can not only be electrically connected to the conductive contacts S, but also be fixedly connected to the conductive contacts S, so that the light-emitting units 400 can be fixed as a whole on the driving backboard.

[0074] In the present application, the light emitting unit 400 in the light emitting substrate 000 can include LEDs. Here, one light emitting unit 400 can include three different types of LEDs, for example, one light emitting unit 400 can include a red LED for emitting red light, a green LED for emitting green light and a blue LED for emitting blue light. In one possible implementation, the three different types of LEDs in one light emitting unit 400 can be integrated together and the light emitting unit 400 can be fixed on the driving backboard, in this case, one light emitting unit 400 can be electrically connected with four conductive contacts S in the first conductive layer 200. In another possible implementation, the three different types of LEDs in one light emitting unit 400 can not be integrated together, and the three different types of LEDs in one light emitting unit 400 can be fixed on the driving backboard respectively, in this case, one light emitting unit 400 can be electrically connected with six conductive contacts S in the first conductive layer 400.

[0075] In the embodiment of the present application, since the second conductive layer 300 in the light emitting substrate 000 can be used for grounding. Therefore, the introduced static electricity can be conducted away through the second conductive layer 300, so that the probability of introducing static electricity into the first conductive layer 200 is relatively low.

[0076] Please refer to FIG. 2 and FIG. 3, FIG. 3 is a partial enlarged view of the second conductive layer in a light emitting substrate provided by an embodiment of the present application. The second conductive layer 300 can have a plurality of avoiding openings K corresponding to the plurality of light emitting units 400. Here, the orthographic projection of the avoiding opening K on the substrate 100 can overlap with the orthographic projection of the corresponding light emitting unit 400 on the substrate 100. For example, the orthographic projection of the avoiding opening K on the substrate 100 can cover the orthographic projection of the conductive contact S connected by the corresponding light emitting unit 400 on the substrate 100. That is, the orthographic projection of the conductive contact S in the first conductive layer 400 electrically connected with each light emitting unit 400 on the substrate 100 can be located within the orthographic projection of the avoiding opening K corresponding to the light emitting unit 400 on the substrate 100. In this way, it can be ensured that the second conductive layer 300 distributed between the first conductive layer 200 and the plurality of light emitting units 400 will not affect the connection between the light emitting unit 400 and the conductive contact S in the first conductive layer 200.

[0077] In summary, the light-emitting substrate provided by the embodiment of the present application comprises a substrate, a first conductive layer, a second conductive layer, and a plurality of light-emitting units. Since the second conductive layer is arranged in the light-emitting substrate and can be used for grounding, the introduced static electricity can be conducted away through the second conductive layer, so that the probability of the first conductive layer introducing static electricity is low, thereby ensuring that the structure inside the driving backboard in the light-emitting substrate is not easily affected by static electricity and fails, and thus the reliability of the light-emitting substrate is high. In addition, the second conductive layer can have a plurality of avoiding openings corresponding to the plurality of light-emitting units one by one, and the orthographic projection of the avoiding opening on the substrate and the orthographic projection of the corresponding light-emitting unit on the substrate overlap. In this case, it can be ensured that the second conductive layer distributed between the first conductive layer and the plurality of light-emitting units will not affect the connection between the light-emitting units and the conductive contacts in the first conductive layer.

[0078] In the embodiment of the present application, referring to FIG. 3, the second conductive layer 300 can comprise a plurality of first auxiliary leads 301 extending along a first direction A1, and / or a plurality of second auxiliary leads 302 extending along a second direction A2. That is, the second conductive layer 300 in the light-emitting substrate 000 only comprises a plurality of first auxiliary leads 301, or the second conductive layer 300 in the light-emitting substrate 000 only comprises a plurality of second auxiliary leads 302, or the second conductive layer 300 in the light-emitting substrate 000 can simultaneously comprise a plurality of first auxiliary leads 301 and a plurality of second auxiliary leads 302. Wherein, the first direction A1 intersects with the second direction A2. For example, the first direction A1 can be perpendicular to the second direction A2.

[0079] Here, in the case that the second conductive layer 300 comprises a plurality of first auxiliary leads 301 extending along the first direction A1, each first auxiliary lead 301 is used for grounding, and the introduced static electricity can be conducted away through the plurality of first auxiliary leads 301 in the second conductive layer 300, so that the probability of the first conductive layer 200 introducing static electricity is low.

[0080] In the case that the second conductive layer 300 comprises a plurality of second auxiliary leads 302 extending along the second direction A2, each second auxiliary lead 302 is used for grounding, and the introduced static electricity can be conducted away through the plurality of second auxiliary leads 302 in the second conductive layer 300, so that the probability of the first conductive layer 200 introducing static electricity is low.

[0081] In a case where the second conductive layer 300 includes both the plurality of first auxiliary leads 301 extending along the first direction A1 and the plurality of second auxiliary leads 302 extending along the second direction A2, at least one of the first auxiliary leads 301 and the second auxiliary leads 302 can be used for grounding, and since the first auxiliary leads 301 and the second auxiliary leads 302 are arranged in the same layer, the first auxiliary leads 301 and the second auxiliary leads 302 can be electrically connected at the crossing positions.

[0082] In the embodiment of the present application, referring to FIG. 4, FIG. 4 is a structural schematic diagram of a driving backboard in a light-emitting substrate according to an embodiment of the present application. The light-emitting substrate 000 can further include a third conductive layer 500 located on the side of the first conductive layer 200 away from the substrate 100. The third conductive layer 500 can be located on the side of the second conductive layer 300 away from the substrate 100, or the third conductive layer 500 can be located on the side of the second conductive layer 300 away from the first conductive layer 200. Here, the third conductive layer 500 can be arranged in insulation with the second conductive layer 300, for example, the light-emitting substrate 000 can further include a first insulating layer 800 located between the second conductive layer 300 and the third conductive layer 500. The second conductive layer 300 and the third conductive layer 500 can be insulated by the first insulating layer 800. It should be noted that the plurality of light-emitting units 400 in the embodiment of the present application can be distributed on the side of the third conductive layer 500 away from the substrate 100. In addition, the side of the third conductive layer 500 away from the substrate 100 can be provided with a third insulating layer 1200, which can insulate and protect the third conductive layer 500, and can ensure that the light-emitting units 400 will not be connected to the third conductive layer 500.

[0083] In a possible implementation, the second conductive layer 300 in the light-emitting substrate 000 can be used for grounding, and the third conductive layer 500 in the light-emitting substrate 000 can not be grounded. In this case, the second conductive layer 300 can include a plurality of first auxiliary leads 301 extending along the first direction A1, and each first auxiliary lead 301 is used for grounding. Alternatively, the second conductive layer 300 can include a plurality of second auxiliary leads 302 extending along the second direction A2, and each second auxiliary lead 302 is used for grounding. The third conductive layer 500 does not include auxiliary leads for grounding.

[0084] In another possible implementation, the second conductive layer 300 and the third conductive layer 500 in the light-emitting substrate 000 can both be used for grounding. In this case, the second conductive layer 300 in the light-emitting substrate 000 can include a plurality of first auxiliary leads 301 extending along the first direction A1, and the third conductive layer 500 can include a plurality of second auxiliary leads 302 extending along the second direction A2. Here, each of the first auxiliary leads 301 and each of the second auxiliary leads 302 is used for grounding.

[0085] In the embodiment of the present application, at least one of the plurality of first auxiliary leads 301 and the plurality of second auxiliary leads 302 in the light-emitting substrate 000 can have an avoiding opening K.

[0086] For example, in the case where the light-emitting substrate 000 only includes the plurality of first auxiliary leads 301 extending along the first direction A1, the plurality of first auxiliary leads 301 can have a plurality of avoiding openings K. In the case where the light-emitting substrate 000 only includes the plurality of second auxiliary leads 302 extending along the second direction A2, the plurality of second auxiliary leads 302 can have a plurality of avoiding openings K.

[0087] In the case where the light-emitting substrate 000 includes both the plurality of first auxiliary leads 301 extending along the first direction A1 and the plurality of second auxiliary leads 302 extending along the second direction A2, and the plurality of first auxiliary leads 301 and the plurality of second auxiliary leads 302 are both distributed in the second conductive layer 300, the plurality of first auxiliary leads 301 and the plurality of second auxiliary leads 302 can both have a plurality of avoiding openings K. For example, as shown in FIG. 3, one first auxiliary lead 301 and one second auxiliary lead 302 can be provided with one avoiding opening K at the intersection position.

[0088] In the case where the light-emitting substrate 000 includes both the plurality of first auxiliary leads 301 extending along the first direction A1 and the plurality of second auxiliary leads 302 extending along the second direction A2, and the plurality of first auxiliary leads 301 are distributed in the second conductive layer 300 and the plurality of second auxiliary leads 302 are distributed in the third conductive layer 500, please refer to FIG. 5, which is a schematic diagram of a partial structure of a second conductive layer and a third conductive layer according to an embodiment of the present application. The plurality of avoiding openings K can include a plurality of first sub-openings K1 distributed on the plurality of first auxiliary leads 301, and a plurality of second sub-openings K2 distributed on the plurality of second auxiliary leads 302.

[0089] The first sub-openings K1 and the second sub-openings K2 can be one-to-one corresponding, and the orthographic projection of the first sub-opening K1 on the substrate 100 can be overlapped with the orthographic projection of the corresponding second sub-opening K2 on the substrate 100. That is, the orthographic projection of the first sub-opening K1 on the substrate 100 and the orthographic projection of the second sub-opening K2 on the substrate 100 can be coincident. In this way, the second conductive layer 300 and the third conductive layer 500 can not affect the connection between the light emitting unit 400 and the conductive contact S in the first conductive layer 200. Here, one first sub-opening K1 and one corresponding second sub-opening K2 can constitute one avoiding opening K, and the avoiding opening K can be distributed at the position where the first auxiliary lead line 301 and the second auxiliary lead line 302 intersect.

[0090] Optionally, taking the second auxiliary lead line 302 as an example, as shown in FIG. 6 and FIG. 7, FIG. 6 is a partial structure schematic diagram of a second auxiliary lead line provided by an embodiment of the present application, and FIG. 7 is another partial structure schematic diagram of a second auxiliary lead line provided by an embodiment of the present application. In the first direction A1, the width of the first auxiliary lead line 301 is greater than the width of the avoiding opening K arranged on the first auxiliary lead line 301, so that the avoiding opening K arranged on the first auxiliary lead line 301 does not cut off the first auxiliary lead line 301, thereby enabling the first auxiliary lead line 301 to always penetrate and connect in the second direction A2.

[0091] In a possible implementation, as shown in FIG. 6, the avoiding opening K can be arranged at the central position of the second auxiliary lead line 302 in the first direction A1. In this case, the portions of the second auxiliary lead line 302 on both sides of the avoiding opening K in the second direction A2 can be connected through the portions of the second auxiliary lead line 302 on both sides of the avoiding opening K in the first direction A1. In another possible implementation, as shown in FIG. 7, one side of the avoiding opening K2 distributed in the first direction A1 can be in communication with the boundary of the second auxiliary lead line 302. In this case, the portions of the second auxiliary lead line 302 on both sides of the avoiding opening K in the second direction A2 can be connected through the portions of the second auxiliary lead line 302 on the other side of the avoiding opening K in the first direction A1. The embodiments of the present application do not make any limitation in this regard.

[0092] In the present application, please refer to FIG. 8 and FIG. 9, FIG. 8 is a top view of a conductive layer provided with a plurality of first auxiliary lead lines, and FIG. 9 is a top view of a conductive layer provided with a plurality of second auxiliary lead lines. The light emitting substrate 000 can further include a plurality of first touch signal lines 600 extending in the first direction A1 and a plurality of second touch signal lines 700 extending in the second direction A2.

[0093] Here, the first touch signal line 600 in the light-emitting substrate 000 can be one of a touch driving signal line and a touch sensing signal line, and the second touch signal line 700 in the light-emitting substrate 000 can be the other of the touch driving signal line and the touch sensing signal line. Through cooperation of the touch driving signal line and the touch sensing signal line, a capacitance change of a region of the light-emitting substrate 000 touched by a user can be detected, so as to position a position of a touch region through the capacitance change, and thus the light-emitting substrate 000 can have a touch function. It should be noted that the first touch signal line 600 and the second touch signal line 700 in the light-emitting substrate 000 can be electrically connected to a touch signal access end, so that the first touch signal line 600 and the second touch signal line 700 can realize the touch function.

[0094] Here, the first touch signal line 600 and the second touch signal line 700 are arranged in different layers, and the first touch signal line 600 is closer to the substrate 100 than the second touch signal line 700. That is, the conductive layer in which the first touch signal line 600 is arranged is not the same conductive layer as the conductive layer in which the second touch signal line 700 is arranged, and the first touch signal line 600 and the second touch signal line 700 are formed through two times of patterning processes.

[0095] Here, as shown in FIGS. 8 and 9, the first touch signal line 600 can be arranged in the same layer as and made of the same material as the first auxiliary lead line 301, and / or the second touch signal line 700 can be arranged in the same layer as and made of the same material as the second auxiliary lead line 302.

[0096] It should be noted that, in the case where the first touch signal line 600 is arranged in the same layer as and made of the same material as the first auxiliary lead line 301, the first touch signal line 600 and the first auxiliary lead line 301 are formed through one time of patterning process. In the case where the second touch signal line 700 is arranged in the same layer as and made of the same material as the second auxiliary lead line 302, the second touch signal line 700 and the second auxiliary lead line 302 are formed through one time of patterning process. It should be noted that one time of patterning process can include photoresist coating, exposure, development, etching, and photoresist stripping. Here, in the case where the first touch signal line 600 is arranged in the same layer as and made of the same material as the first auxiliary lead line 301, and / or the second touch signal line 700 is arranged in the same layer as and made of the same material as the second auxiliary lead line 302, the number of film layers inside the light-emitting substrate 000 can be reduced on the basis of the fact that the light-emitting substrate 000 has the touch function through the first touch signal line 600 and the second auxiliary lead line 700 and the static electricity introduced through the first auxiliary lead line 301 and / or the second auxiliary lead line 302 is led away, and thus the manufacturing cost of the light-emitting substrate 000 can be reduced.

[0097] In the embodiment of the present application, as shown in FIG. 8, in the case that the first touch signal lines 600 are arranged in the same layer as the first auxiliary lead lines 301 and are made of the same material, the plurality of first auxiliary lead lines 301 can be arranged alternately with the plurality of first touch signal lines 600.

[0098] It should be noted that the spaced arrangement means that the two are spaced apart from each other without being connected. For example, the plurality of first auxiliary lead lines 301 can be spaced apart from the plurality of first touch signal lines 600 without being connected. The alternately arranged manner can be various, for example, one first touch signal line 600 can be arranged between every two adjacent first auxiliary lead lines 301, and one first auxiliary lead line 301 can be arranged between every two adjacent first touch signal lines 600. For another example, two or more first touch signal lines 600 can be arranged between every two first auxiliary lead lines 301. For another example, at least two first auxiliary lead lines 301 in the plurality of first auxiliary lead lines 301 are continuously arranged, and at least two first touch signal lines in the plurality of first touch signal lines 600 are continuously arranged, and the continuously arranged plurality of first auxiliary lead lines 301 and the continuously arranged plurality of first touch signal lines 600 can be arranged alternately.

[0099] In the embodiment of the present application, as shown in FIG. 9, in the case that the second touch signal lines 700 are arranged in the same layer as the second auxiliary lead lines 302 and are made of the same material, the plurality of second auxiliary lead lines 302 can be arranged alternately with the plurality of second touch signal lines 700.

[0100] It should be noted that the spaced arrangement means that the two are spaced apart from each other without being connected. For example, the plurality of second auxiliary lead lines 302 can be spaced apart from the plurality of second touch signal lines 700 without being connected. The alternately arranged manner can be various, for example, one second touch signal line 700 can be arranged between every two adjacent second auxiliary lead lines 302, and one second auxiliary lead line 302 can be arranged between every two adjacent second touch signal lines 700. For another example, two or more second touch signal lines 700 can be arranged between every two second auxiliary lead lines 302. For another example, at least two second auxiliary lead lines 302 in the plurality of second auxiliary lead lines 302 are continuously arranged, and at least two first touch signal lines in the plurality of second touch signal lines 700 are continuously arranged, and the continuously arranged plurality of second auxiliary lead lines 302 and the continuously arranged plurality of second touch signal lines 700 can be arranged alternately.

[0101] Optionally, the second conductive layer 300 in the light-emitting substrate 000 can include a plurality of auxiliary wires and a first touch signal line 600 disposed in insulation with the auxiliary wires. Here, the auxiliary wires can be first auxiliary wires 301 extending along the first direction A1, or can be second auxiliary wires 302 extending along the second direction A2. It should be noted that in the case where the second conductive layer 300 includes the auxiliary wires and the first touch signal line 600, the extension direction of the auxiliary wires can be parallel to the extension direction of the first touch signal line 600 to ensure insulation therebetween.

[0102] The third conductive layer 500 in the light-emitting substrate 000 can include a plurality of second touch signal lines 700. Here, the extension direction of the first touch signal line 600 can intersect the extension direction of the second touch signal line 700. For example, the extension direction of the first touch signal line 600 can be perpendicular to the extension direction of the second touch signal line 700.

[0103] In the embodiments of the present application, since the light-emitting substrate 000 can include at least one of the first auxiliary wires 301 and the second auxiliary wires 302, the distribution of the first touch signal line 600 and the second touch signal line 700 in the light-emitting substrate 000 is different for different types of auxiliary wires included in the light-emitting substrate 000. The embodiments of the present application will be illustratively described in the following four cases:

[0104] In the first case, as shown in FIG. 8 and FIG. 10, which is a partial top view of a light-emitting substrate provided by the embodiments of the present application, in the case where the light-emitting substrate 000 includes only the first auxiliary wires 301 and does not include the second auxiliary wires 302, the second conductive layer 300 in the light-emitting substrate 000 can include a plurality of first auxiliary wires 301, and these first auxiliary wires 301 can be disposed in the same layer and be of the same material as the plurality of first touch signal lines 600. In this case, the plurality of second touch signal lines 700 in the light-emitting substrate 000 can be disposed in the same layer and be of the same material as the third conductive layer 500. That is, as shown in FIG. 11, which is a top view of a first conductive layer and a third conductive layer provided by the embodiments of the present application, the third conductive layer 500 can include a plurality of second touch signal lines 700 extending along the second direction A2.

[0105] It should be noted that, as shown in FIG. 8, in the case where the first touch signal line 600 is arranged in the same layer as the first auxiliary lead 301 and is made of the same material, the first touch signal line 600 and the first auxiliary lead 301 can both be mesh-shaped signal lines. Here, the mesh-shaped signal line refers to a signal line in which a plurality of mesh-shaped openings are distributed. By arranging the first touch signal line 600 and the first auxiliary lead 301 as mesh-shaped signal lines, the parasitic capacitance generated between the first touch signal line 600 and the first conductive layer 200 can be ensured to be small, and the parasitic capacitance generated between the first auxiliary lead 301 and the first conductive layer 200 can also be ensured to be small. Thus, the first touch signal line 600 and the first auxiliary lead 301 can have less interference with the driving signal transmitted in the first conductive layer 200, so that the first conductive layer 200 can stably drive the light emitting unit 400 to emit light.

[0106] As shown in FIG. 11, in the case where the third conductive layer 500 includes a plurality of second touch signal lines 700, the second touch signal line 700 can also be a mesh-shaped signal line, so that the parasitic capacitance generated between the second touch signal line 700 and the first conductive layer 200 is small. Thus, the second touch signal line 700 can have less interference with the driving signal transmitted in the first conductive layer 200.

[0107] The second case, as shown in FIG. 9 and FIG. 12, which is a partial top view of another light emitting substrate provided by an embodiment of the present application, in the case where the light emitting substrate 000 includes only the second auxiliary lead 302 but does not include the first auxiliary lead 301, the second conductive layer 300 in the light emitting substrate 000 can include a plurality of second auxiliary leads 302, and these second auxiliary leads 302 can be arranged in the same layer as the plurality of second touch signal lines 700 and be made of the same material.

[0108] Here, in the case where the light emitting substrate 000 includes the third conductive layer 500, the plurality of first touch signal lines 600 in the light emitting substrate 000 can be arranged in the same layer as the third conductive layer 500 and be made of the same material. That is, as shown in FIG. 13, which is a top view of another first conductive layer and third conductive layer provided by an embodiment of the present application, the third conductive layer 500 can include a plurality of first touch signal lines 600 extending along the first direction A1.

[0109] It should be noted that, as shown in FIG. 9, in the case that the second touch signal line 700 is arranged in the same layer and is made of the same material as the second auxiliary lead line 302, the second touch signal line 700 and the second auxiliary lead line 302 can both be mesh-shaped signal lines. Here, the mesh-shaped signal line refers to a signal line in which a plurality of mesh-shaped openings are distributed. By arranging the second touch signal line 700 and the second auxiliary lead line 302 as mesh-shaped signal lines, the parasitic capacitance generated between the second touch signal line 700 and the first conductive layer 200 can be small, and the parasitic capacitance generated between the second auxiliary lead line 302 and the first conductive layer 200 can also be small, thereby ensuring that the second touch signal line 700 and the second auxiliary lead line 302 have little interference with the driving signal transmitted in the first conductive layer 200, so that the first conductive layer 200 can stably drive the light emitting unit 400 to emit light.

[0110] As shown in FIG. 12, in the case that the third conductive layer 500 includes a plurality of first touch signal lines 600, the first touch signal line 600 can also be a mesh-shaped signal line, so that the parasitic capacitance generated between the first touch signal line 600 and the first conductive layer 200 is small, thereby ensuring that the first touch signal line 600 has little interference with the driving signal transmitted in the first conductive layer 200.

[0111] The third case, as shown in FIG. 9, in the case that the light emitting substrate 000 only includes the second auxiliary lead line 302 and does not include the first auxiliary lead line 301, the second conductive layer 300 in the light emitting substrate 000 can include a plurality of second auxiliary lead lines 302, and these second auxiliary lead lines 302 can be arranged in the same layer and made of the same material as the plurality of second touch signal lines 700.

[0112] Here, in the case that the light emitting substrate 000 does not include the third conductive layer 500, the plurality of first touch signal lines 600 in the light emitting substrate 000 can be arranged in the same layer and made of the same material as the first conductive layer 200.

[0113] For example, as shown in FIG. 14, which is a partial top view of another light emitting substrate provided by the embodiments of the present application, the first conductive layer 200 in the light emitting substrate 000 can include a plurality of driving signal lines 201 extending along the first direction A1. Among them, the driving signal line 201 can be electrically connected with at least part of the conductive contacts S in the first conductive layer 200. The driving signal line 201 can be arranged in the same layer and made of the same material as the first touch signal line 600, and the plurality of driving signal lines 201 and the plurality of first touch signal lines 600 are spaced apart and arranged alternately.

[0114] It should be noted that the spaced arrangement means that the two are spaced apart and not connected. For example, the plurality of drive signal lines 201 can be spaced apart and not connected with the plurality of first touch signal lines 600. The alternating arrangement can have various forms. For example, one first touch signal line 600 can be arranged between every two adjacent drive signal lines 201, and one drive signal line 201 can be arranged between every two adjacent first touch signal lines 600. For another example, two or more first touch signal lines 600 can be arranged between every two drive signal lines 201. For another example, at least two drive signal lines 201 in the plurality of drive signal lines 201 are continuously arranged, and at least two first touch signal lines in the plurality of first touch signal lines 600 are continuously arranged. In this case, the continuously arranged plurality of drive signal lines 201 and the continuously arranged plurality of first touch signal lines 600 can be alternately arranged.

[0115] It should be noted that, in the case where the first touch signal lines 600 and the drive signal lines 201 are arranged in the same layer and are made of the same material, in order to ensure that the distribution between the first touch signal lines 600 and the drive signal lines 201 is uniform, the first touch signal lines 600 can not be grid-shaped signal lines. However, the second auxiliary lead lines 302 and the second touch signal lines 700 can be grid-shaped signal lines.

[0116] In the fourth case, in the case where the first auxiliary lead lines 301 and the second auxiliary lead lines 302 are both included in the light-emitting substrate 000, as shown in FIG. 8, the second conductive layer 300 in the light-emitting substrate 000 can include a plurality of first auxiliary lead lines 301, and the first auxiliary lead lines 301 can be arranged in the same layer as the plurality of first touch signal lines 600 and can be made of the same material. As shown in FIG. 9, the third conductive layer 300 in the light-emitting substrate 000 can include a plurality of second auxiliary lead lines 302, and the second auxiliary lead lines 302 can be arranged in the same layer as the plurality of second touch signal lines 700 and can be made of the same material.

[0117] It should be noted that, in order to reduce the interference with the drive signal transmitted by the first conductive layer 200, the first auxiliary lead lines 301, the second auxiliary lead lines 302, the first touch signal lines 600, and the second touch signal lines 700 can all be arranged as grid-shaped signal lines.

[0118] In this case, as shown in FIG. 4, the light-emitting substrate 000 can further include a first insulating layer 800 between the plurality of first auxiliary lead lines 301 and the plurality of second auxiliary lead lines 302. The first insulating layer 800 in the light-emitting substrate 000 can have a plurality of first vias V1, and the plurality of second auxiliary lead lines 302 can be connected to the plurality of first auxiliary lead lines 301 through the plurality of first vias V1, so that the plurality of second auxiliary lead lines 302 can be electrically connected to the plurality of first auxiliary lead lines 301 through the plurality of first vias V1.

[0119] In the embodiment of the present application, referring to FIG. 11, FIG. 13, FIG. 14 and FIG. 15, FIG. 15 is a partial top view of another light-emitting substrate provided by the embodiment of the present application. The plurality of light-emitting units 400 in the light-emitting substrate 000 can be arranged in multiple rows along the first direction A1 and arranged in multiple columns along the second direction A2. At least one column of the light-emitting units 400 can be distributed between the orthogonal projections of two adjacent first touch signal lines 600 on the substrate 100, and at least one row of the light-emitting units 400 can be distributed between the orthogonal projections of two adjacent second touch signal lines 700 on the substrate 100. For example, one column of the light-emitting units 400 can be distributed between the orthogonal projections of two adjacent first touch signal lines 600 on the substrate 100, and one row of the light-emitting units 400 can be distributed between the orthogonal projections of two adjacent second touch signal lines 700 on the substrate 100. For another example, two columns of adjacent light-emitting units 400 can be distributed between the orthogonal projections of two adjacent first touch signal lines 600 on the substrate 100, and two rows of adjacent light-emitting units 400 can be distributed between the orthogonal projections of two adjacent second touch signal lines 700 on the substrate 100. In this way, the first touch signal lines 600 and the second touch signal lines 700 can be distributed around each light-emitting unit 400, so that the touch precision of the light-emitting substrate 000 can be ensured to be high.

[0120] In the present application, referring to FIG. 14, the first conductive layer 200 can include a plurality of driving signal lines 201, and the plurality of driving signal lines 201 can include a plurality of first power signal lines 2011 and a plurality of second power signal lines 2012. The first power signal lines 2011 can be electrically connected with the second conductive layer 300, and the first power signal lines 2011 can be used for grounding. That is, the first power signal lines 2011 can be low-level power signal lines (i.e., VSS power signal lines), and the second power signal lines 2012 can be high-level power signal lines (i.e., VDD power signal lines). Here, the extension direction of the first power signal lines 2011 and the extension direction of the second power signal lines 2012 are both parallel to the first direction A1. The first power signal lines 2011 and the second power signal lines 2012 can both be electrically connected with the driving circuit in the light-emitting substrate 000.

[0121] In the embodiment of the present application, the light-emitting substrate 000 can further include a second insulating layer 900 located between the first conductive layer 200 and the second conductive layer 300. The second insulating layer 900 can have a plurality of second vias V2. The second conductive layer 300 can be connected to the first power signal line 2011 in the first conductive layer 200 through the plurality of second vias V2, so that the second conductive layer 300 can be electrically connected to the first power signal line 2011 in the first conductive layer 200 through the plurality of second vias V2. In this case, the second conductive layer 300 can be connected in parallel to the first power signal line 2011 in the first conductive layer 200 through the plurality of second vias V2. In this way, not only can the impedance generated between the second conductive layer 300 and the first power signal line 2011 in the first conductive layer 200 be reduced, but also the induced static electricity can be effectively conducted away, thereby ensuring that the probability of introducing static electricity into the first conductive layer 200 is low.

[0122] In the present application, as shown in FIG. 15, the plurality of second vias V2 can be divided into a plurality of groups of second vias V20. One group of second vias V20 can include at least two second vias V2, and the plurality of groups of second vias V20 can correspond one-to-one to the plurality of avoidance openings K. The orthographic projection of the at least two second vias V2 in one group of second vias V20 on the substrate 100 can be distributed around the orthographic projection of the corresponding avoidance opening K on the substrate 100. In this way, the number of second vias V2 distributed on the second insulating layer 900 can be ensured to be large, so that the second conductive layer 300 and the first power signal line 2011 have more contact points, thereby ensuring that the electrical connection between the second conductive layer 300 and the first power signal line 2011 is better.

[0123] In the present application, as shown in FIG. 15, the second conductive layer 200 in the light-emitting substrate 000 can include a plurality of auxiliary leads. Here, the auxiliary leads can be first auxiliary leads 301 extending in the first direction A1, or can be second auxiliary leads 302 extending in the second direction A2. The plurality of auxiliary leads can be electrically connected to the plurality of first power signal lines 2011 through the plurality of second vias V2. For example, the plurality of first auxiliary leads 301 extending in the first direction A1 can be electrically connected to the plurality of first power signal lines 2011 through the plurality of second vias V2.

[0124] The plurality of auxiliary leads can have a plurality of avoidance openings K. In the extension direction of the auxiliary leads, the orthographic projection of the plurality of avoidance openings K on the substrate 100 can be alternately arranged with the orthographic projection of the plurality of groups of second vias V20 on the substrate 100.

[0125] It should be noted that the arrangement of the plurality of avoidance openings K and the plurality of groups of second vias V20 can be various, for example, one avoidance opening K can be arranged between every two groups of second vias V20, and one group of second vias V20 can be arranged between every two avoidance openings K. For another example, two or more groups of second vias V20 can be arranged between every two avoidance openings. For another example, at least two avoidance openings K in the plurality of avoidance openings K are arranged continuously, and at least two groups of second vias V20 in the plurality of groups of second vias V20 are arranged continuously, and the continuously arranged plurality of avoidance openings K and the continuously arranged plurality of groups of second vias V20 can be arranged alternately.

[0126] In the embodiment of the present application, please refer to FIG. 16, which is a schematic diagram of a film layer structure of a light-emitting substrate provided in the embodiment of the present application. The light-emitting substrate 000 can further include a plurality of driving circuits 202 located on the side of the first conductive layer 200 close to the substrate 100. The driving structure layer in the light-emitting substrate 000 can include the plurality of driving circuits 202.

[0127] The plurality of electrical patterns in each driving circuit 202 in the light-emitting substrate 000 can include a first gate pattern 2021, an active layer pattern 2022, a second gate pattern 2023, and a source-drain electrode pattern 2024, which are stacked in a direction perpendicular to and away from the substrate 100. The light-emitting substrate 000 can further include a first gate insulating layer 2025 located between the first gate pattern 2021 and the active layer pattern 2022, a second gate insulating layer 2026 located between the second gate pattern 2023 and the active layer pattern 2022, and an interlayer dielectric layer 2027 located between the second gate pattern 2023 and the source-drain electrode pattern 2024.

[0128] Here, the driving circuit 202 can have at least one transistor, and the first gate pattern 2021, the active layer pattern 2022, the second gate pattern 2023, and the source-drain electrode pattern 2024 in the driving circuit 202 can be used to form the at least one transistor. In a possible implementation, the transistors can belong to double-gate type transistors. In another possible implementation, the transistors can belong to single-gate type transistors, and the gate pattern can be one of the first gate pattern 2021 and the second gate pattern 2023.

[0129] For example, the first gate pattern 2021 and the second gate pattern 2023 can be overlapped with the normal projection of the active layer pattern 2022 on the substrate 100, and the first gate pattern 2021 can be insulated from the active layer pattern 2022 by the first gate insulating layer 2025, and the second gate pattern 2023 can be insulated from the active layer pattern 2022 by the second gate insulating layer 2026. The source-drain electrode pattern 2024 can include a first electrode 2024a and a second electrode (not shown in the figure) which are respectively overlapped with the active layer pattern 2022, and a lap electrode 2024b which is separately arranged from the first electrode 2032a and the second electrode. The first electrode 2024a can be one of the source electrode and the drain electrode, and the second electrode can be the other one of the source electrode and the drain electrode. The lap electrode 2024b can be electrically connected to the first gate pattern 2021 and the second gate pattern 2023 through a first lap via and a second lap via, respectively. In this way, the first gate pattern 2021 and the second gate pattern 2023 can apply the same potential to the lap electrode, and the potential can act on the active layer pattern 2022 to turn on or turn off the first electrode 2024a and the second electrode which are overlapped with the active layer pattern 2022.

[0130] Optionally, the second insulating layer 900 in the light-emitting substrate 000 can include a second inorganic protective layer 901 and a second organic planar layer 902. The second organic planar layer 902 can be located on the side of the second inorganic protective layer 901 away from the first conductive layer 200. Here, the second inorganic protective layer 901 can prevent water and oxygen in the external environment from corroding the first conductive layer 200 from the side of the first conductive layer 200 away from the substrate 100, thereby reducing the probability of oxidation and corrosion of the first conductive layer 200.

[0131] Optionally, the light-emitting substrate 000 can further include an organic planar layer 1000 located on the side of the plurality of driving circuits 202 away from the substrate 100, and an inorganic protective layer 1100 located between the organic planar layer 1000 and the first conductive layer 200.

[0132] The organic planar layer 1000 in the light-emitting substrate 000 has good planarity, so when the organic planar layer 1000 is arranged on the side of the driving circuit 202 away from the substrate 100, the planarity of the side of the driving circuit 202 away from the substrate 100 can be ensured to be good.

[0133] The inorganic protective layer 1100 in the light-emitting substrate 000 can prevent water and oxygen in the external environment from corroding the first conductive layer 200 from the side of the first conductive layer 200 close to the substrate 100, thereby further reducing the probability of oxidation and corrosion of the first conductive layer 200.

[0134] It should be noted that please refer to FIG. 17, which is a partial top view of a light-emitting substrate according to another embodiment of the present application. The first conductive layer 200 can be distributed with a plurality of conductive contact groups, and one conductive contact group can be electrically connected with one light-emitting unit 400 in the light-emitting substrate 000 one by one. One conductive contact group can include one first conductive contact S1 for simultaneously electrically connecting with the negative electrode pins of at least two different types of LEDs in the light-emitting unit 400, and at least two second conductive contacts S2 for respectively electrically connecting with the positive electrode pins of at least two different types of LEDs in the light-emitting unit 400.

[0135] For example, the number of LEDs in the light-emitting unit 400 can be three, which can be distributed as a red LED for emitting red light, a green LED for emitting green light, and a blue LED for emitting blue light. In this case, the number of second conductive contacts S2 can also be three, which can be respectively electrically connected with the positive electrode pins of the red LED, the green LED and the blue LED. Here, the negative electrode pins of the red LED, the green LED and the blue LED are all used for electrical connection with the first conductive contact S1.

[0136] It should be noted that each first conductive contact S1 in the conductive contact group corresponding to the light-emitting unit 400 arranged in a column can be simultaneously electrically connected with one first power signal line 2011. In each conductive contact group, different second conductive contacts S2 can be connected to different driving circuits 202, so that the driving circuit 202 can drive the corresponding LED in the light-emitting unit 400 to emit light.

[0137] Optionally, the LED in the light-emitting unit 400 can be a common size LED, a mini Light-Emitting Diode (mini-LED for short) or a Micro Light-Emitting Diode (Micro-LED for short).

[0138] In summary, the light-emitting substrate provided by the embodiments of the present application includes a substrate, a first conductive layer, a second conductive layer, and a plurality of light-emitting units. Since the second conductive layer is arranged in the light-emitting substrate and can be used for grounding, the introduced static electricity can be conducted away through the second conductive layer, so that the probability of the first conductive layer introducing static electricity is low, thereby ensuring that the structure inside the driving backboard in the light-emitting substrate is not easily affected by static electricity and fails, and further improving the reliability of the light-emitting substrate. In addition, the second conductive layer can have a plurality of avoiding openings corresponding to the plurality of light-emitting units one by one, and the orthographic projection of the avoiding opening on the substrate and the orthographic projection of the corresponding light-emitting unit on the substrate overlap. In this case, it can be ensured that the second conductive layer distributed between the first conductive layer and the plurality of light-emitting units will not affect the connection between the light-emitting units and the conductive contacts in the first conductive layer.

[0139] The embodiments of the present application also provide a display device. The display device can be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, etc. The display device can include a driving assembly and the light-emitting substrate in the above embodiments. The driving assembly can be electrically connected with the first conductive layer in the light-emitting substrate, and the driving assembly is used to provide a driving signal to the light-emitting unit through the first conductive layer, so that the light-emitting unit can emit light outward.

[0140] It should be noted that in the drawings, the dimensions of layers and regions can be exaggerated for clarity. Also, it can be understood that when a component or layer is referred to as being "on" another component or layer, it can be directly on the other component or layer, or intervening layers can also be present. In addition, it can be understood that when a component or layer is referred to as being "under" another component or layer, it can be directly under the other component or layer, or one or more intervening layers or components can also be present. In addition, it can be understood that when a layer or component is referred to as being "between" two layers or components, it can be the only layer or component between the two layers or components, or one or more intervening layers or components can also be present. Similar reference numerals denote like components throughout the specification.

[0141] In the present application, the terms "first" and "second" are used only for descriptive purposes, and cannot be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless otherwise explicitly limited.

[0142] The above only describes optional embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A light-emitting substrate, characterized in that, include: Base; A first conductive layer located on one side of the substrate, the first conductive layer having a plurality of conductive contacts; A second conductive layer is located on the side of the first conductive layer opposite to the substrate. The second conductive layer is insulated from the first conductive layer and is used for grounding. Additionally, a plurality of light-emitting units are located on the side of the second conductive layer opposite to the substrate, and the light-emitting units are electrically connected to at least a portion of the conductive contacts; The second conductive layer has a plurality of clearance openings that correspond one-to-one with the plurality of light-emitting units, and the orthographic projection of the clearance opening on the substrate overlaps with the orthographic projection of the corresponding light-emitting unit on the substrate.

2. The light-emitting substrate according to claim 1, characterized in that, The second conductive layer includes: a plurality of first auxiliary leads extending along a first direction, and / or a plurality of second auxiliary leads extending along a second direction, wherein the first direction intersects the second direction; At least one of the plurality of first auxiliary leads and the plurality of second auxiliary leads has the plurality of clearance openings.

3. The light-emitting substrate according to claim 1, characterized in that, The light-emitting substrate further includes a third conductive layer located on the side of the first conductive layer opposite to the substrate; The third conductive layer is located on the side of the second conductive layer away from the first conductive layer, or the third conductive layer is located between the second conductive layer and the first conductive layer; The second conductive layer includes a plurality of first auxiliary leads extending along a first direction; or, the second conductive layer includes a plurality of second auxiliary leads extending along a second direction; or, the second conductive layer includes a plurality of first auxiliary leads extending along a first direction, and the third conductive layer includes a plurality of second auxiliary leads extending along a second direction. At least one of the plurality of first auxiliary leads and the plurality of second auxiliary leads has the plurality of clearance openings.

4. The light-emitting substrate according to claim 2 or 3, characterized in that, The light-emitting substrate further includes: a plurality of first touch signal lines extending along the first direction, and a plurality of second touch signal lines extending along the second direction, wherein the first touch signal lines and the second touch signal lines are disposed in different layers, and the first touch signal lines are closer to the substrate than the second touch signal lines; Wherein, the first touch signal line and the first auxiliary lead are disposed in the same layer and are made of the same material, and / or, the second touch signal line and the second auxiliary lead are disposed in the same layer and are made of the same material.

5. The light-emitting substrate according to claim 4, characterized in that, When the first touch signal line and the first auxiliary lead are disposed in the same layer and are made of the same material, the plurality of first auxiliary leads and the plurality of first touch signal lines are spaced apart and arranged alternately.

6. The light-emitting substrate according to claim 4, characterized in that, When the second touch signal line and the second auxiliary lead are disposed in the same layer and made of the same material, the plurality of second auxiliary leads and the plurality of second touch signal lines are spaced apart and arranged alternately.

7. The light-emitting substrate according to claim 6, characterized in that, The first conductive layer includes: a plurality of driving signal lines extending along the first direction, wherein the driving signal lines are electrically connected to at least a portion of the conductive contacts; The driving signal lines are disposed on the same layer as the first touch signal lines and are made of the same material, and the multiple driving signal lines are spaced apart from and alternately arranged with the multiple first touch signal lines.

8. The light-emitting substrate according to claim 3, characterized in that, In the case where the second conductive layer includes a plurality of first auxiliary leads extending along a first direction and the third conductive layer includes a plurality of second auxiliary leads extending along a second direction, the plurality of clearance openings include: a plurality of first sub-openings distributed on the plurality of first auxiliary leads and a plurality of second sub-openings distributed on the plurality of second auxiliary leads. The plurality of first sub-openings correspond one-to-one with the second sub-openings, and the orthographic projection of the first sub-opening on the substrate overlaps with the orthographic projection of the corresponding second sub-opening on the substrate.

9. The light-emitting substrate according to claim 8, characterized in that, The light-emitting substrate further includes a first insulating layer located between the plurality of first auxiliary leads and the plurality of second auxiliary leads, the first insulating layer having a plurality of first vias, and the plurality of second auxiliary leads overlapping with the plurality of first auxiliary leads through the plurality of first vias.

10. The light-emitting substrate according to any one of claims 5 to 7, characterized in that, When the first touch signal line and the first auxiliary lead are disposed in the same layer and made of the same material, both the first touch signal line and the first auxiliary lead are grid-shaped signal lines; And / or, when the second touch signal line and the second auxiliary lead are disposed in the same layer and are made of the same material, both the second touch signal line and the second auxiliary lead are mesh-shaped signal lines.

11. The light-emitting substrate according to claim 10, characterized in that, When the light-emitting substrate includes a third conductive layer, the second conductive layer includes the plurality of first auxiliary leads, and the second touch signal line is disposed in the same layer as the third conductive layer and is made of the same material, the second touch signal line is also a grid-shaped signal line.

12. The light-emitting substrate according to claim 10, characterized in that, When the light-emitting substrate includes a third conductive layer, the second conductive layer includes the plurality of second auxiliary leads, and the first touch signal line is disposed in the same layer as the third conductive layer and is made of the same material, the first touch signal line is also a grid-shaped signal line.

13. The light-emitting substrate according to claim 1, characterized in that, The light-emitting substrate further includes a third conductive layer located on the side of the first conductive layer opposite to the substrate; The third conductive layer is located on the side of the second conductive layer away from the first conductive layer, or the third conductive layer is located between the second conductive layer and the first conductive layer; The second conductive layer includes: multiple auxiliary leads, and a first touch signal line that is insulated from the auxiliary leads; The third conductive layer includes: multiple second touch signal lines; Wherein, the extension direction of the first touch signal line intersects with the extension direction of the second touch signal line.

14. The light-emitting substrate according to any one of claims 5-7 and 11-13, characterized in that, The plurality of light-emitting units are arranged in multiple rows along the first direction and in multiple columns along the second direction; In this configuration, at least one column of the light-emitting units is distributed between the orthographic projections of two adjacent first touch signal lines on the substrate, and at least one row of the light-emitting units is distributed between the orthographic projections of two adjacent second touch signal lines on the substrate.

15. The light-emitting substrate according to any one of claims 1-3, 5-9, and 11-13, characterized in that, The first conductive layer includes multiple drive signal lines, which include multiple first power signal lines and multiple second power signal lines. The first power signal lines are electrically connected to the second conductive layer and are used for grounding. The light-emitting substrate further includes a second insulating layer located between the first conductive layer and the second conductive layer, the second insulating layer having a plurality of second vias, and the second conductive layer being connected to the first power signal line through the plurality of second vias.

16. The light-emitting substrate according to claim 15, characterized in that, The plurality of second vias are divided into multiple groups of second vias, each group of second vias containing at least two second vias, and the multiple groups of second vias correspond one-to-one with the plurality of clearance openings; In this group, at least two of the second vias are distributed around the orthographic projection of the corresponding clearance opening on the substrate.

17. The light-emitting substrate according to claim 15, characterized in that, The second conductive layer includes: multiple auxiliary leads, which are electrically connected to the multiple first power signal lines through the multiple second vias; The auxiliary leads have multiple clearance openings, and the orthographic projection of the clearance openings on the substrate covers the orthographic projection of the conductive contacts connected to the corresponding light-emitting units on the substrate.

18. A display device, characterized in that, include: A driving component, and a light-emitting substrate electrically connected to the driving component, wherein the light-emitting substrate is the light-emitting substrate according to any one of claims 1 to 17.

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