Light-emitting substrate and light-emitting device

Abstract

The present application discloses a light-emitting substrate and a light-emitting device, which relate to the field of light source technology and can reduce the gaps between partitions on the light-emitting substrate to improve the lighting or display effect. A light-emitting substrate comprises: a base layer, the base layer including at least two light-emitting areas, the light-emitting areas including a plurality of light-emitting devices; at least two drive signal lines, all the light-emitting devices in the same light-emitting area are electrically connected to the same drive signal line; the orthographic projections of some of the light-emitting devices on the base layer at least partially overlap with the orthographic projections of the drive signal lines on the base layer.

Description

Technical Field

[0001] The present application relates to the field of light source technology, and in particular to a light-emitting substrate and a light-emitting device. Background Art

[0002] Currently, to meet diverse lighting or display needs, light-emitting substrates are typically divided into zones, meaning each zone can be independently controlled to emit light. Each zone transmits a driving signal via a different signal line to achieve zoned control of the light-emitting substrate.

[0003] However, the existing partition control arrangement of the light-emitting substrate has the problem of obvious gaps between the partitions. During the lighting or display process, the presence of the gaps affects the lighting or display effect. Summary of the Invention

[0004] The embodiments of the present application provide a light-emitting substrate and a light-emitting device, which can reduce the gaps between partitions on the light-emitting substrate and improve the lighting or display effect.

[0005] According to a first aspect of the present application, a light-emitting substrate is provided, comprising:

[0006] a base layer, the base layer comprising at least two light-emitting regions, the light-emitting regions comprising a plurality of light-emitting devices;

[0007] at least two driving signal lines, all the light-emitting devices in the same light-emitting area are electrically connected to the same driving signal line;

[0008] The orthographic projections of part of the light emitting devices on the base layer at least partially overlap with the orthographic projections of the driving signal lines on the base layer.

[0009] In some embodiments, the light emitting region includes a first sub-region and a second sub-region, and the first sub-region at least partially surrounds the second sub-region;

[0010] The first sub-region at least partially overlaps with an orthographic projection of the driving signal line on the base layer.

[0011] In some embodiments, the first sub-region is closed around the second sub-region.

[0012] In some embodiments, a density of the light-emitting devices in the first sub-region is the same as a density of the light-emitting devices in the second sub-region.

[0013] In some embodiments, the light-emitting substrate comprises:

[0014] a first insulating layer, disposed between the driving signal line and the light emitting device;

[0015] an electrode lead, one end of which is electrically connected to the light-emitting device, and the other end of which is electrically connected to the driving signal line via a signal lead;

[0016] The length of the orthographic projection of each electrode lead on the base layer is less than or equal to half the circumference of the orthographic projection of the electrically connected light-emitting device on the base layer.

[0017] In some embodiments, the electrode lead is electrically connected to the light emitting device in a one-to-one manner;

[0018] The signal leads are electrically connected to the electrode leads in a one-to-many manner;

[0019] The driving signal lines are electrically connected to the signal leads in a one-to-many manner.

[0020] In some embodiments, the plurality of light emitting devices within the light emitting area are arranged in an array;

[0021] Each row of the light-emitting devices or each column of the light-emitting devices is electrically connected to the same signal lead.

[0022] In some embodiments, the orthographic projection of the light-emitting device of the first sub-region and / or the light-emitting device of the second sub-region on the substrate layer covers the orthographic projection of the electrode lead on the substrate layer.

[0023] In some embodiments, an orthographic projection of the light-emitting device on the base layer does not overlap with an orthographic projection of the electrode lead on the base layer.

[0024] In some embodiments, the distance between adjacent driving signal lines ranges from 100 μm to 1000 μm; and / or,

[0025] The line width of the driving signal line ranges from 5 μm to 300 μm.

[0026] In some embodiments, the light-emitting substrate further comprises:

[0027] a conductive functional electrode electrically connected to the driving signal line through the first through-hole of the first insulating layer, wherein the connection of the conductive functional electrode is used to reduce the resistance of the driving signal line;

[0028] The second insulating layer is provided between the conductive functional electrode and the light emitting device, and the electrode lead is electrically connected to the light emitting device through the second through hole of the second insulating layer.

[0029] In some embodiments, the conductive functional electrodes are electrically connected to the drive signal lines in a one-to-one manner;

[0030] The orthographic projection of the conductive functional electrode on the base layer covers the orthographic projection of the driving signal line on the base layer.

[0031] In some embodiments, the electrode lead and the driving signal line are manufactured through the same process, and the electrode lead is electrically connected to the light-emitting device through the third through hole of the first insulating layer and the second through hole of the second insulating layer; or

[0032] The electrode lead and the conductive functional electrode are prepared through the same process.

[0033] In some embodiments, the light-emitting device includes an anode, a light-emitting layer, and a cathode, the light-emitting layer is disposed between the anode and the cathode, and the anode is electrically connected to the electrode lead.

[0034] According to a second aspect of the present application, a light-emitting device is provided, comprising:

[0035] The light-emitting substrate according to the first aspect.

[0036] The light-emitting substrate provided in the embodiment of the present application is configured such that all light-emitting devices in the same light-emitting area are electrically connected to the same drive signal line, thereby enabling independent control of the light emission of each light-emitting area. The independent control programming design of different light-emitting areas can achieve diversified lighting or display effects of the light-emitting substrate. The orthographic projections of some light-emitting devices on the substrate layer are configured to at least partially overlap with the orthographic projections of the drive signal lines on the substrate layer. The light-emitting devices that overlap with the drive signal lines can fill the gaps between the light-emitting areas of the existing light-emitting substrate, thereby greatly reducing the gaps between the light-emitting areas. The spacing between adjacent light-emitting areas can even be made equal to the spacing between adjacent light-emitting devices in the same light-emitting area, so that when the light-emitting substrate is illuminated, the gaps between adjacent light-emitting areas are invisible to the naked eye, thereby improving the lighting or display effects of the light-emitting substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A schematic structural diagram of a light-emitting substrate provided in an embodiment of the present application;

[0038] Figure 2 A schematic structural diagram of a boundary between adjacent light-emitting areas provided in an embodiment of the present application;

[0039] Figure 3 A schematic cross-sectional structural diagram of a light-emitting substrate provided in an embodiment of the present application;

[0040] Figure 4 A schematic diagram of a partial structure of a light-emitting substrate provided in an embodiment of the present application;

[0041] Figure 5A schematic structural diagram of another light-emitting substrate provided in an embodiment of the present application;

[0042] Figure 6 A schematic partial structural diagram of a light-emitting substrate provided in an embodiment of the present application;

[0043] Figure 7 A schematic partial structural diagram of another light-emitting substrate provided in an embodiment of the present application;

[0044] Figure 8 A schematic partial structural diagram of another light-emitting substrate provided in an embodiment of the present application;

[0045] Figure 9 A schematic partial structural diagram of another light-emitting substrate provided in an embodiment of the present application;

[0046] Figure 10 A schematic partial structural diagram of another light-emitting substrate provided in an embodiment of the present application;

[0047] Figure 11 A schematic structural diagram of a light-emitting device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0048] In order to better understand the technical solutions provided by the embodiments of this specification, the technical solutions of the embodiments of this specification are described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0049] In this article, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also include elements inherent to such process, method, article or equipment. In the absence of further restrictions, the elements defined by the statement "comprising a ..." do not exclude the presence of other identical elements in the process, method, article or equipment comprising the elements. The term "two or more" includes two or more than two cases.

[0050] Currently, to meet diverse lighting or display needs, light-emitting substrates are typically divided into zones, allowing each zone to be independently controlled. Each zone transmits a drive signal via a separate signal line, enabling zoned control of the light-emitting substrate. However, existing zoned control arrangements for light-emitting substrates suffer from noticeable gaps between zones, which can affect the lighting or display performance.

[0051] In view of this, embodiments of the present application provide a light-emitting substrate and a light-emitting device, which can reduce the gaps between partitions on the light-emitting substrate and improve the lighting or display effect.

[0052] In a first aspect of the embodiments of the present application, a light-emitting substrate is provided. Figure 1 A schematic structural diagram of a light-emitting substrate provided in an embodiment of the present application; Figure 2 A schematic structural diagram of a boundary between adjacent light-emitting areas provided in an embodiment of the present application; Figure 3 This is a schematic cross-sectional structural diagram of a light-emitting substrate provided in an embodiment of the present application. Figure 1-Figure 3 The light-emitting substrate provided in the embodiment of the present application includes: a base layer 100, a light-emitting device 200 and at least two driving signal lines 300; the base layer 100 includes at least two light-emitting areas 110, and the light-emitting area 110 includes multiple light-emitting devices 200. Figure 1 The shape and number of the light emitting regions 110 shown are only schematic. Figure 2 The shape and number of the light-emitting devices shown are only for illustration and are not intended to be a specific limitation of the embodiments of the present application. All light-emitting devices 200 in the same light-emitting area 110 are electrically connected to the same drive signal line 300, which can realize independent control of the light-emitting area 110. The independent control programming design of different light-emitting areas 110 can realize diversified lighting or display effects of the light-emitting substrate, which can be applied to various cool lighting or display scenes of car lights, stage lights or other entertainment venues. Figure 2 As shown, the orthographic projection of a portion of the light emitting device 200 on the base layer 100 at least partially overlaps with the orthographic projection of the driving signal line 300 on the base layer 100 . Figure 2 The driving signal line 300 shown is arranged at the edge of the light-emitting area 110, which is only for illustration. It can also be arranged in the middle area, etc., which is not specifically limited in the embodiment of the present application.

[0053] It should be noted that Figure 2 yes Figure 1 A partially enlarged schematic diagram of a boundary area 101 between adjacent light-emitting areas. Figure 2The shapes of the light emitting devices 200 shown include parallelograms and triangles, which are only for illustration and are not intended to be a specific limitation of the embodiments of the present application. Light emitting devices 200 with different filling patterns represent light emitting devices with different light emitting areas.

[0054] It should be noted that Figure 4 This is a partial structural diagram of a light-emitting substrate provided in an embodiment of the present application. Figure 4 As shown, the driving signal line 300 does not overlap with the light-emitting device 200. The driving signal line 300 is arranged between adjacent light-emitting areas. There is a large gap between adjacent light-emitting areas. When the light-emitting substrate is lit, there is a relatively obvious gap between the adjacent light-emitting areas, which affects the lighting effect or display effect and the user's sensory perception is poor. Figure 4 The light emitting devices 200 shown in different filling patterns represent light emitting devices in different light emitting areas.

[0055] To address the above-mentioned issues, the light-emitting substrate provided in the embodiments of the present application is configured such that the orthographic projections of some light-emitting devices 200 on the base layer 100 at least partially overlap with the orthographic projections of the drive signal lines 300 on the base layer 100, i.e., some of the light-emitting devices 200 at least partially overlap with the drive signal lines 300. The light-emitting devices 200 that overlap with the drive signal lines 300 can fill the gaps between the light-emitting regions 110 of the existing light-emitting substrate, thereby greatly reducing the gaps between the light-emitting regions 110. The spacing between adjacent light-emitting regions 110 can even be made equal to the spacing between adjacent light-emitting devices 200 within the same light-emitting region 110. This makes it so that when the light-emitting substrate is illuminated, the gaps between adjacent light-emitting regions 110 are invisible to the naked eye, thereby improving the lighting or display effects of the light-emitting substrate.

[0056] The light-emitting substrate provided in the embodiment of the present application is configured such that all light-emitting devices 200 within the same light-emitting region 110 are electrically connected to the same drive signal line 300, thereby enabling independent control of the light-emitting region 110. Independent control programming of different light-emitting regions 110 can achieve diverse lighting or display effects of the light-emitting substrate. The orthographic projections of some light-emitting devices 200 on the substrate layer 100 are configured to at least partially overlap with the orthographic projections of the drive signal lines 300 on the substrate layer 100. The light-emitting devices 200 that overlap with the drive signal lines 300 can fill the gaps between the light-emitting regions 110 of the existing light-emitting substrate, thereby greatly reducing the gaps between the light-emitting regions 110. The spacing between adjacent light-emitting regions 110 can even be made equal to the spacing between adjacent light-emitting devices 200 within the same light-emitting region 110. This allows the gaps between adjacent light-emitting regions 110 to be invisible to the naked eye when the light-emitting substrate is illuminated, thereby improving the lighting or display effects of the light-emitting substrate.

[0057] In some embodiments, the light-emitting region includes a first sub-region and a second sub-region, the first sub-region at least partially surrounding the second sub-region; the first sub-region at least partially overlaps with the orthographic projection of the drive signal line on the substrate layer. The first sub-region may completely surround the second sub-region, that is, the first sub-region is arranged at the edge region of the light-emitting region, and the second sub-region is arranged in the middle region of the light-emitting region. The first sub-region may partially surround the second sub-region, which is not specifically limited in the embodiments of the present application. The first sub-region at least partially overlaps with the orthographic projection of the drive signal line on the substrate layer, that is, the light-emitting device in the first sub-region overlaps with the drive signal line.

[0058] Exemplarily, the first sub-region is closed around the second sub-region. Figure 5 This is a schematic structural diagram of another light-emitting substrate provided in an embodiment of the present application. Figure 5 As shown, the first sub-region 111 surrounds the second sub-region 112, and the first sub-region 111 is arranged at the edge of the light-emitting area 110, so that the overlap between the light-emitting device in the first sub-region 111 and the driving signal line will not affect the normal light-emitting of the light-emitting device in the middle area of the light-emitting area 110, ensuring that the light-emitting device 200 in most areas in the middle of the light-emitting area 110 will not overlap with the driving signal line 300, thereby reducing signal interference caused by the overlap between the device and the signal line.

[0059] In some embodiments, the density of the light-emitting devices 200 in the first sub-region 111 is the same as the density of the light-emitting devices 200 in the second sub-region 112 , which can ensure the uniformity of light emission of the light-emitting devices 200 in the light-emitting area 110 and avoid light emission differentiation.

[0060] In some embodiments, Figure 6 A schematic partial structural diagram of a light-emitting substrate provided in an embodiment of the present application; Figure 7 This is a schematic partial structural diagram of another light-emitting substrate provided in an embodiment of the present application. Figure 6 and Figure 7 The light-emitting substrate further includes a first insulating layer 400, which is disposed between the drive signal line 300 and the light-emitting device 200. The light-emitting device 200 includes an anode 210, a light-emitting layer 220, and a cathode 230. The light-emitting layer 220 is located between the anode 210 and the cathode 230. The anode 210 is electrically connected to the electrode lead 500. The anode 210 and the cathode 230 can drive the light-emitting layer 220 to emit light. A pixel-defining structure 240 is disposed between adjacent light-emitting devices 200 to separate the light-emitting layers 220 of different light-emitting devices 200. The light-emitting substrate includes an electrode lead 500 and a signal lead 600. One end of the electrode lead 500 is electrically connected to the light-emitting device 200, and the other end of the electrode lead 500 is electrically connected to the drive signal line 300 via the signal lead 600.

[0061] Illustratively, the light-emitting device provided in the embodiment of the present application may be a top-emitting light-emitting device, and the light-emitting device may be arranged on a side of the driving signal line close to the light-emitting side.

[0062] For example, Figure 7 As shown, the light-emitting devices 200 in adjacent light-emitting areas 110 are electrically connected to different drive signal lines 300, and all light-emitting devices 200 in the same light-emitting area 110 are electrically connected to the same drive signal line 300. The multiple light-emitting devices 200 in the light-emitting area 110 are arranged in an array, and each row of light-emitting devices 200 is electrically connected to the same signal lead 600. In some embodiments, each column of light-emitting devices 200 may also be electrically connected to the same signal lead 600, which is not specifically limited in this embodiment of the present application.

[0063] Exemplary, reference Figure 7 The electrode leads 500 are electrically connected to the light-emitting devices 200 in a one-to-one manner. The signal leads 600 are electrically connected to the electrode leads 500 in a one-to-many manner, meaning that the signal leads 600 can be connected to the same row. The signal leads 600 can also be electrically connected to the light-emitting devices 200 in the same column. The drive signal lines 300 are electrically connected to the signal leads 600 in a one-to-many manner.

[0064] It should be noted that the electrode leads 500 , the signal leads 600 and the driving signal lines 300 can be arranged in the same layer or in different layers. Arrangement in the same layer can be understood as being prepared by the same process and the same material.

[0065] In some embodiments, the length of the orthographic projection of each electrode lead 500 on the substrate layer 100 is less than or equal to the semi-circumference of the orthographic projection of the electrically connected light-emitting device 200 on the substrate layer 100. Electrode leads 500 of a certain length can act as resistors, providing short-circuit protection for the light-emitting devices 200. During the process of transmitting a driving signal to the electrode lead 500 via the signal lead 600, if the electrode lead 500 or the light-emitting device 200 shorts with other structures, the resistance of the electrode lead 500 can act as a voltage divider to prevent the entire signal lead 600 from being short-circuited, thereby preventing all light-emitting devices 200 electrically connected to the entire signal lead 600 from being short-circuited, causing abnormal lighting in rows or columns.

[0066] Exemplary, reference Figure 7 The electrode lead 500 half surrounds the light emitting device 200. When the light emitting devices 200 are arranged in an array, the electrode lead 500 can have a sufficient length. It can also avoid the problem of too many electrode leads 500 between adjacent light emitting devices 200 caused by the electrode lead 500 completely surrounding the light emitting device 200, and avoid the electrode lead 500 occupying too much space.

[0067] In some embodiments, the orthographic projections of the light-emitting devices 200 in one or both of the light-emitting devices 200 in the first sub-region 111 and the second sub-region 112 on the base layer 100 cover the orthographic projections of the electrode leads 500 on the base layer 100 .

[0068] The orthographic projection of the light emitting device 200 on the base layer 100 does not overlap with the orthographic projection of the electrode lead 500 on the base layer 100 .

[0069] In some examples, the light-emitting device 200 in the first sub-region 111 overlaps with the electrode lead 500 , and the light-emitting device 200 in the second sub-region 112 does not overlap with the electrode lead 500 .

[0070] In some examples, the light-emitting device 200 in the first sub-region 111 does not overlap with the electrode lead 500 , and the light-emitting device 200 in the second sub-region 112 overlaps with the electrode lead 500 .

[0071] In some examples, the light emitting device 200 in the first sub-region 111 does not overlap with the electrode lead 500 , and the light emitting device 200 in the second sub-region 112 does not overlap with the electrode lead 500 .

[0072] In some examples, the light emitting devices 200 in the first sub-region 111 and the second sub-region 112 overlap with the electrode lead 500 .

[0073] The light-emitting device 200 and the electrode lead 500 are arranged to overlap, allowing for electrical signal insulation via an insulating layer. This overlap saves wiring space, further reducing the spacing between adjacent light-emitting devices 200 and improving the luminous effect of the light-emitting substrate. When the light-emitting device 200 and the electrode lead 500 are arranged to overlap, the electrode lead 500 can completely surround the light-emitting device 200, providing improved short-circuit protection.

[0074] For example, Figure 8 This is a schematic partial structural diagram of another light-emitting substrate provided in an embodiment of the present application. Figure 8 As shown, the electrode lead 500 and the driving signal line 300 are arranged in the same layer, and the light emitting device 200 in the first sub-area overlaps with the electrode lead 500. Figure 6 The light-emitting device 200 in the first sub-area shown does not overlap with the electrode lead 500, and the electrode lead 500 is electrically connected to the anode 210 through the third through hole 410 of the first insulating layer 400. In the event that the light-emitting device 200 in the first sub-area overlaps with the electrode lead 500, it should be noted that the electrode lead 500 must avoid the driving signal line 300.

[0075] In some embodiments, the distance between adjacent driving signal lines 300 ranges from 100 μm to 1000 μm, and the line width of the driving signal line 300 ranges from 5 μm to 300 μm.

[0076] It should be noted that, under normal circumstances, the spacing between adjacent driving signal lines ranges from 500μm to 1000μm, and the line width of the driving signal lines ranges from 10μm to 400μm. In the light-emitting substrate provided in the embodiment of the present application, the spacing and line width of the driving signal lines are reduced to a certain extent, which can reduce the gap between the light-emitting areas and further improve the light-emitting effect of the light-emitting substrate.

[0077] In some embodiments, the light-emitting substrate further includes a conductive functional electrode and a second insulating layer. The conductive functional electrode can be electrically connected to the driving signal line through the first through hole of the first insulating layer. The access of the conductive functional electrode is used to reduce the resistance of the driving signal line; the second insulating layer is arranged between the conductive functional electrode and the light-emitting device, and the electrode lead is electrically connected to the light-emitting device through the second through hole of the second insulating layer.

[0078] It should be noted that reducing the spacing and line width of the drive signal lines can increase the resistance of the drive signal lines, affecting the driving of the light-emitting device. To address this issue, the light-emitting substrate provided in the embodiments of the present application can reduce the resistance of the drive signal lines by providing conductive functional electrodes electrically connected to the drive signal lines. The electrical connection between the conductive functional electrodes and the drive signal lines can then be considered a parallel connection, which can reduce the resistance of the parallel connection.

[0079] For example, Figure 9 This is a schematic partial structural diagram of another light-emitting substrate provided in an embodiment of the present application. Figure 9 As shown, the conductive functional electrode 700 is electrically connected to the driving signal line 300 through the first through hole of the first insulating layer 400 , and the conductive functional electrode 700 is insulated from the light emitting device by the second insulating layer 800 . Figure 9 The electrode lead 500 and the driving signal line 300 are provided in the same layer through the same process, and the electrode lead 500 is electrically connected to the anode 210 through the third through hole of the first insulating layer 400 and the second through hole of the second insulating layer.

[0080] In some embodiments, the electrode lead 500 can be provided in the same layer as the conductive functional electrode 700 through the same process. Figure 10 This is a schematic partial structural diagram of another light-emitting substrate provided in an embodiment of the present application. Figure 10 As shown, when the electrode lead 500 and the conductive functional electrode 700 are arranged in the same layer, the electrode lead 500 is electrically connected to the anode through the second through hole of the second insulating layer 800.

[0081] In some embodiments, the conductive functional electrode 700 can be made of the same material as the driving signal line 300. The conductive functional electrode 700 can be made of metal material, metal oxide or alloy, etc., which is not specifically limited in the embodiment of the present application.

[0082] In some embodiments, the conductive functional electrodes 700 are electrically connected to the driving signal lines 300 in a one-to-one manner; the orthographic projection of the conductive functional electrodes 700 on the base layer 100 covers the orthographic projection of the driving signal lines 300 on the base layer 100 .

[0083] The light-emitting device provided in the embodiment of the present application, by setting a double-layer conductive structure, obtains a driving signal line with a resistance value similar to that of the original single-layer conductive structure, which can further reduce the line width and line spacing of the driving signal line, and can further reduce the overlapping area between the driving signal line and the light-emitting device, thereby avoiding the occurrence of signal interference caused by excessive overlapping area.

[0084] It should be noted that by setting a double-layer conductive structure to obtain a driving signal line with a resistance value similar to that of the original single-layer conductive structure, the line width and line spacing of the driving signal line can be further reduced, which can play a role in reducing the gap between the light-emitting areas. It can be implemented separately without setting an overlap between the light-emitting device and the driving signal line.

[0085] Illustratively, the driving signal line provided in the embodiment of the present application can be used to provide an anode driving signal, and the anode driving signal is used to drive the anode of the light-emitting device.

[0086] According to a second aspect of the present application, a light emitting device is provided. Figure 11 This is a schematic structural diagram of a light emitting device provided in an embodiment of the present application. Figure 11 As shown, the light-emitting device provided in the embodiment of the present application includes: the light-emitting substrate 1000 as described in the first aspect.

[0087] It should be noted that the light-emitting device provided in the embodiment of the present application can be used as a display device, and can also be used as a light source, for example, in car lights, stage lights, entertainment venue atmosphere lights, etc., and the embodiment of the present application does not make specific limitations.

[0088] The present invention provides a light-emitting device in which all light-emitting devices 200 within the same light-emitting region 110 are electrically connected to the same drive signal line 300 on a light-emitting substrate. This allows for independent control of the light-emitting region 110. Independent control programming of different light-emitting regions 110 can achieve diverse lighting or display effects for the light-emitting substrate. The orthographic projections of some light-emitting devices 200 on the substrate layer 100 are at least partially overlapped with the orthographic projections of the drive signal lines 300 on the substrate layer 100. The light-emitting devices 200 that overlap with the drive signal lines 300 can fill the gaps between the light-emitting regions 110 of the existing light-emitting substrate, thereby significantly reducing the gaps between the light-emitting regions 110. The spacing between adjacent light-emitting regions 110 can even be reduced to the spacing between adjacent light-emitting devices 200 within the same light-emitting region 110. This makes the gaps between adjacent light-emitting regions 110 invisible to the naked eye when the light-emitting substrate is illuminated, thereby improving the lighting or display effects of the light-emitting substrate.

[0089] It should be noted that, in the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0090] 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 make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

[0091] Although the preferred embodiments of this specification have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of this specification.

[0092] Obviously, those skilled in the art may make various changes and modifications to this specification without departing from the spirit and scope of this specification. Thus, if such changes and modifications fall within the scope of the claims of this specification and their equivalents, this specification is intended to include such changes and modifications.

Claims

1. A light-emitting substrate, characterized in that: include: a base layer, the base layer comprising at least two light-emitting regions, the light-emitting regions comprising a plurality of light-emitting devices; at least two driving signal lines, all the light-emitting devices in the same light-emitting area are electrically connected to the same driving signal line; The orthographic projections of some of the light-emitting devices on the base layer at least partially overlap with the orthographic projections of the driving signal lines on the base layer; The light emitting area includes a first sub-area and a second sub-area, wherein the first sub-area at least partially surrounds the second sub-area; The first sub-area at least partially overlaps with the orthographic projection of the driving signal line on the base layer; a first insulating layer, disposed between the driving signal line and the light emitting device; an electrode lead, one end of which is electrically connected to the light-emitting device, and the other end of which is electrically connected to the driving signal line via a signal lead; The length of the orthographic projection of each electrode lead on the base layer is less than or equal to half the circumference of the orthographic projection of the electrically connected light-emitting device on the base layer; a conductive functional electrode electrically connected to the drive signal line through the first through hole of the first insulating layer, the conductive functional electrode and the drive signal line being connected in parallel, and the connection of the conductive functional electrode is used to reduce the resistance of the drive signal line; a second insulating layer, disposed between the conductive functional electrode and the light-emitting device, wherein the electrode lead is electrically connected to the light-emitting device through a second through hole of the second insulating layer; The orthographic projection of the conductive functional electrode on the base layer covers the orthographic projection of the driving signal line on the base layer.

2. The light-emitting substrate according to claim 1, wherein The first sub-region closes around the second sub-region.

3. The light-emitting substrate according to claim 1, wherein The density of the light-emitting devices in the first sub-area is the same as the density of the light-emitting devices in the second sub-area.

4. The light-emitting substrate according to claim 1, wherein The electrode lead is electrically connected to the light emitting device in a one-to-one manner; The signal leads are electrically connected to the electrode leads in a one-to-many manner; The driving signal lines are electrically connected to the signal leads in a one-to-many manner.

5. The light-emitting substrate according to claim 4, characterized in that The plurality of light emitting devices are arranged in an array within the light emitting area; Each row of the light-emitting devices or each column of the light-emitting devices is electrically connected to the same signal lead.

6. The light-emitting substrate according to claim 1, wherein The orthographic projection of the light-emitting device of the first sub-area and / or the light-emitting device of the second sub-area on the substrate layer covers the orthographic projection of the electrode lead on the substrate layer.

7. The light-emitting substrate according to claim 1, wherein The orthographic projection of the light emitting device on the base layer does not overlap with the orthographic projection of the electrode lead on the base layer.

8. The light-emitting substrate according to any one of claims 1 and 4 to 7, characterized in that: The distance between adjacent driving signal lines ranges from 100 μm to 1000 μm; and / or, The line width of the driving signal line ranges from 5 μm to 300 μm.

9. The light-emitting substrate according to claim 8, wherein The conductive functional electrodes are electrically connected to the driving signal lines in a one-to-one manner.

10. The light emitting substrate according to claim 8, wherein The electrode lead and the driving signal line are manufactured through the same process, and the electrode lead is electrically connected to the light-emitting device through the third through hole of the first insulating layer and the second through hole of the second insulating layer; or The electrode lead and the conductive functional electrode are prepared through the same process.

11. The light emitting substrate according to claim 1, wherein The light emitting device includes an anode, a light emitting layer and a cathode. The light emitting layer is arranged between the anode and the cathode. The anode is electrically connected to the electrode lead.

12. A light emitting device, characterized in that: include: The light-emitting substrate according to any one of claims 1 to 11.

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