Display panel and display apparatus

Abstract

The present disclosure relates to the technical field of display. Provided are a display panel and a display apparatus, which can ameliorate the problem of non-uniform brightness of a displayed picture, and improve the display effect. The display panel comprises: a substrate layer; a driving layer, which is arranged on one side of the substrate layer, and comprises a driving circuit; and a light-emitting device layer, which is arranged on the side of the driving layer that is away from the substrate layer. The light-emitting device layer comprises a pixel defining layer and a plurality of light-emitting devices, and each light-emitting device comprises a first electrode, a light-emitting layer and a second electrode, wherein the pixel defining layer comprises a plurality of pixel openings, and the light-emitting layers are arranged in the pixel openings; both the orthographic projections of the first electrodes on the substrate layer and the orthographic projections of the second electrodes thereon cover the orthographic projections of the pixel openings on the substrate layer; each first electrode is arranged between the substrate layer and the corresponding light-emitting layer, each light-emitting layer is arranged between the corresponding first electrode and the corresponding second electrode, and the orthographic projections of the first electrodes of different light-emitting devices on the substrate layer do not overlap each other; and the first electrodes are electrically connected to the driving circuit, conductive structures are arranged between at least two first electrodes, and the second electrodes are electrically connected to the driving circuit by means of the conductive structures.

Description

A display panel and display device Cross-references to related applications

[0001] This disclosure claims priority to application number 202411919190.7, filed on December 24, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of display technology, and more particularly to a display panel and display device. Background Technology

[0003] Currently, display devices with advantages such as large-scale production line capacity and low cost are widely used in televisions, computers, mobile phones, and other fields. With the continuous development of display technology, improving the brightness of the displayed image is one of the important factors in enhancing the user experience; therefore, improving the display effect is crucial. However, in existing technologies, the cathode fabrication of displays is affected by voltage drops, which can easily lead to brightness attenuation in the bright center area of ​​the display image, resulting in uneven brightness and affecting the display effect. Summary of the Invention

[0004] This disclosure provides a display panel and display device that can improve the problem of uneven brightness in the display screen and enhance the display effect.

[0005] A first aspect of this disclosure provides a display panel, including:

[0006] Substrate layer;

[0007] A driving layer is disposed on one side of the substrate layer, and the driving layer includes a driving circuit.

[0008] A light-emitting device layer is disposed on the side of the driving layer away from the substrate layer. The light-emitting device layer includes a pixel defining layer and a plurality of light-emitting devices. Each light-emitting device includes a first electrode, a light-emitting layer, and a second electrode. The pixel defining layer includes a plurality of pixel openings. The light-emitting layer is disposed at the pixel openings. The orthogonal projections of the first electrode and the second electrode on the substrate layer both cover the orthogonal projections of the pixel openings on the substrate layer. The first electrode is disposed between the substrate layer and the light-emitting layer. The light-emitting layer is disposed between the first electrode and the second electrode. The orthogonal projections of the first electrodes of different light-emitting devices on the substrate layer do not overlap.

[0009] The first electrode is electrically connected to the driving circuit, and a conductive structure is provided between at least two of the first electrodes. The second electrode is electrically connected to the driving circuit through the conductive structure.

[0010] In some embodiments, the second electrodes of at least two of the light-emitting devices are independently driven by different conductive structures.

[0011] In some embodiments, the driving circuit includes a pixel circuit and a driving signal line, the driving signal line including a first driving signal line, the pixel circuit being electrically connected to at least a portion of the first driving signal line, the first electrode being electrically connected to the pixel circuit, and the second electrode being electrically connected to the first driving signal line through the conductive structure.

[0012] In some embodiments, the display panel further includes:

[0013] The first drive signal connection line is electrically connected to the second electrode;

[0014] The extension direction of the first drive signal connection line is different from the extension direction of the first drive signal line; and / or,

[0015] The first drive signal connection line and the first drive signal line are disposed on different conductive layers.

[0016] In some embodiments, multiple first drive signal connection lines and multiple first drive signal lines are provided, and the multiple signal connection lines and multiple first drive signal lines are arranged to intersect to form a mesh structure.

[0017] In some embodiments, the same first drive signal connection line is electrically connected to a plurality of light-emitting devices, and at least one of the light-emitting devices is disposed between adjacent conductive structures.

[0018] In some embodiments, the shape of the first drive signal connection line includes a curved, polygonal, or straight line; and / or,

[0019] The first drive signal connection line includes an optical structure, which is connected to the first drive signal connection line and is disposed on the same layer as the first drive signal connection line.

[0020] In some embodiments, the first drive signal connection line and the first drive signal line, which are arranged in a cross configuration, surround a plurality of pixel units, the pixel units including at least three light-emitting devices that emit light of different colors.

[0021] In some implementations, multiple rows of pixel units are spaced between two adjacent first drive signal connection lines, and the pixel units include at least three light-emitting devices that emit light of different colors.

[0022] In some embodiments, the driving layer includes multiple conductive layers;

[0023] The drive signal line is disposed on the same layer as at least one of the conductive layers; and / or

[0024] The conductive structure is disposed in the same layer as at least one of the conductive layers; and / or

[0025] The first drive signal connection line is disposed on the same layer as the first electrode.

[0026] In some embodiments, the display panel further includes:

[0027] A partition structure is disposed between two adjacent pixel openings, the partition structure being used to isolate the light-emitting layer and / or the second electrode.

[0028] In some embodiments, the conductive structure at least partially surrounds the pixel opening; and / or

[0029] The partition structure surrounds the pixel opening.

[0030] In some embodiments, the conductive structure is disposed between two adjacent light-emitting devices, the conductive structure is electrically connected to the second electrode of one of the adjacent light-emitting devices, and a portion of the partition structure is spaced between the conductive structure and the second electrode of the other adjacent light-emitting device.

[0031] In some embodiments, the partition structure is disposed on the side of the conductive structure away from the substrate, and the orthographic projection of the partition structure on the substrate covers the orthographic projection of the conductive structure on the substrate;

[0032] The orthographic projection of the end of the partition structure away from the conductive structure is the first projection.

[0033] The orthographic projection of the partition structure near the conductive structure is the second projection.

[0034] The size of the first projection along the first direction is greater than the size of the second projection along the first direction, wherein the first direction is the direction in which the openings of two adjacent pixels are connected.

[0035] In some embodiments, the angle between the side of the partition structure facing the pixel opening and the plane of the substrate layer is an acute angle.

[0036] In some embodiments, the isolation structure at least partially covers a portion of the edge of the conductive structure to separate the conductive structure from the unconnected second electrode.

[0037] In some embodiments, the conductive structure includes a first conductive structure and a second conductive structure;

[0038] The side of the first conductive structure closest to the partition structure is electrically connected to the second electrode, and the side of the second conductive structure furthest from the partition structure is electrically connected to the drive signal line;

[0039] The first conductive structure and the second conductive structure are disposed on different conductive layers.

[0040] In some embodiments, the second conductive structure includes a first conductive layer, a second conductive layer, and a third conductive layer, wherein the second conductive layer is disposed between the first conductive layer and the second conductive layer.

[0041] The first boundary of the orthographic projection of the second conductive structure on the substrate falls within the orthographic projection boundary of the first conductive structure on the substrate;

[0042] The first boundary of the orthographic projection of the second conductive structure on the substrate falls within the orthographic projection boundary of the third conductive structure on the substrate;

[0043] At least one conductive structure is electrically connected to the second electrode of an adjacent light-emitting device.

[0044] In some embodiments, the conductive structure has a groove on the side not covered by the partition structure, the groove opening faces the pixel opening, the side of the conductive structure with the groove is electrically connected to the second electrode, and the side of the conductive structure away from the groove is connected to the partition structure.

[0045] In some embodiments, the pixel defining layer includes a plurality of vias located between at least two adjacent pixel openings, at least a portion of the conductive structure passes through the vias, and the orthographic projection of the conductive structure on the substrate layer covers the orthographic projection of the vias on the substrate layer.

[0046] The conductive structure is disposed in the same layer as the first electrode.

[0047] In some embodiments, the pixel defining layer includes multiple cutouts, the orthographic projection of the conductive structure on the substrate layer falls within the orthographic projection of the cutout on the substrate layer, and the orthographic projection of the partition structure on the substrate layer falls within the orthographic projection of the cutout on the substrate layer.

[0048] In some embodiments, the pixel defining layer includes a plurality of cutouts, the orthographic projection of the cutouts on the substrate layer falling within the orthographic projection of the conductive structure on the substrate layer, and the second electrode being electrically connected to the conductive structure through the cutouts.

[0049] A second aspect of this disclosure provides a display device, comprising:

[0050] The display panel as described in the first aspect. Attached Figure Description

[0051] The above and various other advantages and benefits of the present invention will become clear to those skilled in the art from the following detailed description of preferred embodiments.

[0052] Figure 1 is a schematic partial cross-sectional view of a display panel provided in an embodiment of this disclosure;

[0053] Figure 2 is a schematic partial top view of another display panel provided in an embodiment of this disclosure;

[0054] Figure 3 is a schematic partial top view of a display panel provided in an embodiment of this disclosure;

[0055] Figure 4 is a schematic partial top view of another display panel provided in an embodiment of this disclosure;

[0056] Figure 5 is a schematic partial top view of another display panel provided in an embodiment of this disclosure;

[0057] Figure 6 is a schematic partial top view of another display panel provided in an embodiment of the present disclosure;

[0058] Figure 7 is a schematic partial top view of a display panel provided in an embodiment of this disclosure;

[0059] Figure 8 is a schematic partial top view of another display panel provided in an embodiment of this disclosure;

[0060] Figure 9 is a schematic partial cross-sectional view of another display panel provided in an embodiment of this disclosure;

[0061] Figure 10 is a schematic partial cross-sectional view of another display panel provided in an embodiment of the present disclosure;

[0062] Figure 11 is a schematic partial cross-sectional view of another display panel provided in an embodiment of the present disclosure;

[0063] Figure 12 is a schematic partial cross-sectional view of a display panel provided in an embodiment of the present disclosure;

[0064] Figure 13 is a schematic partial cross-sectional view of another display panel provided in an embodiment of this disclosure;

[0065] Figure 14 is a schematic structural diagram of a display device provided in an embodiment of this disclosure. Detailed Implementation

[0066] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. The following description is merely illustrative of the basic principles of the invention and is not intended to limit it.

[0067] To better understand the technical solutions provided in the embodiments of this specification, the technical solutions of the embodiments of this specification will be described in detail below with reference to 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.

[0068] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. The term "two or more" includes two or more cases.

[0069] Currently, display devices with advantages such as high-generation production capacity and low cost are widely used in televisions, computers, mobile phones, and other fields. With the rise of display technology, improving the brightness of the displayed image is a crucial factor in enhancing the user experience; therefore, improving the display effect is extremely important. However, in existing technologies, the entire cathode surface of the display is fabricated, leading to brightness attenuation in the bright center area of ​​the image, resulting in uneven brightness and affecting the display effect.

[0070] In view of this, the present disclosure provides a display panel and display device that can improve the problem of uneven brightness of the display screen and improve the display effect.

[0071] A first aspect of this disclosure provides a display panel, and FIG1 is a schematic partial cross-sectional view of a display panel provided in an embodiment of this disclosure. As shown in FIG1, the display panel includes a substrate layer 100, a driving layer 300, and a light-emitting device layer 500. The substrate layer 100 may be a flexible substrate or a rigid substrate. The driving layer 300 is disposed on one side of the substrate layer 100, and the light-emitting device layer 500 is disposed on the side of the driving layer 300 away from the substrate layer 100. The light-emitting device layer 500 includes a pixel defining layer 504 and a plurality of light-emitting devices. The light-emitting devices may be red light-emitting devices, green light-emitting devices, or blue light-emitting devices. Different colored light-emitting devices emit different colored light to realize the color display of the display panel. The light-emitting devices may include a first electrode 503, a second electrode 502, and a light-emitting layer 501. The pixel defining layer 504 includes a plurality of pixel openings 505. The light-emitting layer 501 is disposed within the pixel openings 505. The pixel defining layer between two adjacent pixel openings 505 is used to separate adjacent light-emitting devices to avoid color mixing. The orthographic projections of the first electrode 503 and the second electrode 502 on the substrate layer 100 both cover the orthographic projection of the pixel opening 505 on the substrate layer. The first electrode 503 is disposed between the substrate layer 100 and the light-emitting layer 501, and the light-emitting layer 501 is disposed between the first electrode 503 and the second electrode 502. The orthographic projections of the first electrodes 503 of different light-emitting devices on the substrate layer 100 do not overlap. The first electrode 503 can be connected to the driving circuit of the driving layer 300. A conductive structure 506 is also disposed between two adjacent first electrodes. The second electrode 502 can be electrically connected to the driving signal line 301 of the driving layer 300 through the conductive structure 506. The driving signal line 301 is electrically connected to the driving circuit. The light-emitting layer 501 can emit light under the combined action of the first electrode 503, the second electrode 502, and the driving circuit for image display. The driving layer 300 may include a driving circuit, which may include a pixel circuit. The pixel circuit may include a driving transistor 310, which may include a third electrode 303, a fourth electrode 304, a fifth electrode 305, and a semiconductor layer 302. The fourth electrode 304 of the driving device may provide a second driving signal to the first electrode 503. The fifth electrode 305 may be connected to other devices in the pixel circuit. The third electrode 303 may serve as the gate of the driving transistor 310. The pixel circuit may drive the light-emitting device to emit light.The first electrode 503 may include an anode, and the second electrode 502 may include a cathode. By electrically connecting the first electrode 503 of the light-emitting device to the fourth electrode 304, and disposing the conductive structure 506 between two adjacent pixel openings 505, i.e., disposing the conductive structure 506 between adjacent first electrodes, and electrically connecting the second electrode 502 of the light-emitting device to the driving circuit of the driving layer 300 through the conductive structure 506, the second electrode of the light-emitting device can be driven independently or have multiple driving signal inputs. This can overcome or improve the voltage drop problem of the entire second electrode, thereby making the brightness of the entire display panel uniform and improving the display effect.

[0072] For example, as shown in FIG1, the display panel includes an encapsulation layer, which includes a first inorganic encapsulation layer 601, an organic encapsulation layer 602, and a second inorganic encapsulation layer 603. The encapsulation layer is used to protect the light-emitting device.

[0073] Typically, the second electrode layer of a common display panel completely covers the light-emitting layer. The driving signal is connected to the outer edge of the second electrode layer. During the transmission of the driving signal from the outer edge to the center area, voltage drop is likely to occur, which can easily cause the brightness of the center area of ​​the display screen to decrease, resulting in uneven brightness of the display screen and affecting the display effect.

[0074] The display panel provided in this embodiment of the present disclosure, by setting the conductive structure between at least two adjacent pixel openings, that is, setting the conductive structure 506 between adjacent first electrodes, and electrically connecting the second electrode of the light-emitting device to the driving circuit of the driving layer through the conductive structure, enables the second electrode of the light-emitting device to be driven independently or to have multiple driving signal inputs, which can overcome or improve the voltage drop problem of the entire second electrode, thereby making the brightness of the entire display panel uniform and improving the display effect of the display screen.

[0075] In some embodiments, the second electrodes of at least two light-emitting devices are independently driven by different conductive structures. For example, the second electrodes of two adjacent light-emitting devices can be independently driven by each other. By providing conductive structures, independent driving of the second electrodes can be achieved.

[0076] Figure 2 is a schematic partial top view of another display panel provided in an embodiment of this disclosure. Exemplarily, as shown in Figures 1 and 2, the conductive structure 506 can surround the pixel opening, or it can surround both sides of the light-emitting device, or it can be on one side of the light-emitting device. Schematically, the red light-emitting device 401 has conductive structures 506 on both sides, the green light-emitting device 404 has a conductive structure 506 on one side, and the blue light-emitting device 403 has a conductive structure 506 on one side. A partition structure 507 is provided around the red light-emitting device 401, the blue light-emitting device 403, and the green light-emitting device 404. The partition structure 507 can block the light emission of the light-emitting device. The second electrode 502 of the light-emitting device, by setting a partition structure between adjacent pixel openings, is electrically connected to the driving circuit through the conductive structure 506, realizing independent driving of the cathode and reverse pixel driving. This avoids uneven light emission caused by voltage drop and crosstalk caused by multiple devices connected in series, improving the uniformity and reliability of the devices.

[0077] In some examples, the conductive structure of the second electrode between two or more light-emitting devices can be different conductive structures. These different conductive structures can be conductive structures through which different driving signals are passed. By passing different driving signals to adjacent light-emitting devices, the adjacent light-emitting devices can be driven to emit light independently.

[0078] Figure 3 is a schematic partial top view of a display panel provided in an embodiment of this disclosure. Exemplarily, as shown in Figures 1 to 3, the driving circuit may include pixel circuits and driving signal lines. The driving signal line 301 includes a first driving signal line 311. A first electrode 503 is electrically connected to the pixel circuit, and a second electrode 502 is electrically connected to the first driving signal line 311 through a conductive structure 506. Multiple light-emitting devices can be provided, and multiple first driving signal lines 311 can be provided. The second electrode 502 can be electrically connected to multiple first driving signal lines 311. The driving signal lines may include multiple other driving signal lines, such as power signal lines, reference voltage signal lines, initial signal lines, gate signal lines, and clock signal lines. The power signal lines may include anode signal lines. The pixel circuit may be electrically connected to the anode signal lines, initial signal lines, gate signal lines, and reference voltage signal lines. The pixel circuit can transmit an anode signal to the light-emitting device, and the first driving signal line 311 can transmit a cathode signal to the light-emitting device. The light-emitting device emits light under the combined action of the anode and cathode signals. A first driving signal line 311 can connect multiple light-emitting devices, so that the second electrode 502 of each light-emitting device can be electrically connected to multiple first driving signal lines 311 through the conductive structure 506. The driving signal can be transmitted to the second electrode 502 through the first driving signal line 311 and the conductive structure 506, so that the second electrode 502 of each light-emitting device can be driven independently, thereby improving the problem of uneven light emission caused by voltage drop.

[0079] For example, as shown in Figures 1 to 3, the display panel further includes a first driving signal connection line 402. The first driving signal connection line 402 is electrically connected to the second electrode 502 through a conductive structure. The length extension direction of the first driving signal connection line 402 is different from the length extension direction of the first driving signal line 311. (Illustrative)

[0080] The first driving signal connection line 402 can extend in a first direction X, which is the direction of the line connecting two adjacent pixel openings 505, i.e., the first driving signal connection line 402 is a horizontal connection line. The first driving signal line 311 can extend in a second direction Y, where the first direction X and the second direction Y are perpendicular to each other, and the first driving signal line 311 is a vertical connection line. The first driving signal connection line 402 and the first driving signal line 311 can be disposed in different conductive layers. The first driving signal connection line 402 can be disposed in the same layer as the second electrode 502 for electrical connection with the second electrode 502. The first driving signal line 311 can be disposed in the conductive layer below the second electrode 502, or within the driving layer 300, where the first driving signal connection line 402 is electrically connected to the second electrode 502, and the second electrode 502 is electrically connected to the first driving signal line 311 through the conductive structure 506. By setting the first driving signal connection line 402 horizontally and the first driving signal line 311 vertically, the driving signal can be transmitted to the second electrode 502 through the first driving signal line 311 and the conductive structure 506, so that the second electrode of each light-emitting device can be driven independently, so as to avoid the phenomenon of voltage drop when the cathode is fully covered, which would cause uneven display brightness and affect the display effect.

[0081] For example, as shown in Figure 3, multiple first drive signal connection lines 402 and multiple first drive signal lines 311 can be provided. The multiple first drive signal connection lines 402 and the multiple first drive signal lines 311 can be parallel to each other, and the first drive signal connection lines 402 and the first drive signal lines 311 can be perpendicular to each other. The multiple first drive signal connection lines 402 and the multiple first drive signal lines 311 are arranged intersecting to form a mesh structure.

[0082] For example, the first drive signal connection lines 402 and 311, which are arranged in a cross configuration, can surround multiple pixel units. Each pixel unit can include three light-emitting devices that emit light of different colors: a red light-emitting device 401, a blue light-emitting device 403, and a green light-emitting device 404. By forming a mesh structure through the cross configuration of multiple first drive signal connection lines and multiple first drive signal lines, each pixel unit can receive the drive signal from the drive circuit, thus solving the problem of uneven brightness on the display panel.

[0083] For example, as shown in FIG3, the display panel further includes a support structure 701, which can be used to support the film structure on the upper layer of the light-emitting device layer to prevent over-etching during the upper film preparation process.

[0084] In some implementations, the same first driving signal connection line is electrically connected to multiple light-emitting devices, and at least one light-emitting device is disposed between adjacent conductive structures. The arrangement density of the longitudinal driving signal line can be adjusted according to the number of light-emitting devices between two adjacent conductive structures to achieve different display effects.

[0085] Figure 4 is a schematic partial top view of another display panel provided in an embodiment of this disclosure. For example, as shown in Figure 4, a single first driving signal line 311 can be electrically connected to multiple conductive structures 506. Correspondingly, a single first driving signal connection line 402 can be electrically connected to the second electrodes of multiple light-emitting devices through conductive mechanisms. One or more light-emitting devices can be disposed between two adjacent conductive structures 506. The arrangement density of the vertical driving signal lines can be adjusted according to the number of light-emitting devices between two adjacent conductive structures 506. When one light-emitting device is disposed between two adjacent conductive structures 506, the driving circuit drives one light-emitting device to emit light. When multiple light-emitting devices are disposed between two adjacent conductive structures 506, the first driving signal line can drive multiple second electrodes. By adjusting the arrangement density of the vertical first driving signal lines, different display effects can be achieved.

[0086] As illustrated in Figure 3, two light-emitting devices 401 are disposed between two adjacent conductive structures 506. As shown in Figure 4, a red light-emitting device 401 is disposed between two adjacent conductive structures 506.

[0087] It should be noted that light-emitting devices of other colors can be placed between two adjacent conductive structures 506.

[0088] In some embodiments, the shape of the first driving signal connection line includes a curved, polygonal, or straight line. The shape of the first driving signal connection line allows the optical structure to disrupt total internal reflection on the surface of the straight-line first driving signal connection line 402 when ambient light hits the display panel in a dark state. This prevents interference enhancement of reflected light from the surface of the first driving signal connection line 402, thus preventing the user from seeing the first driving signal line. Curved and polygonal shapes are more effective at preventing interference from reflected light than straight-line shapes, thus avoiding the user seeing bright lines on straight lines and affecting the display effect.

[0089] Figure 5 is a schematic partial top view of another display panel provided in an embodiment of this disclosure. For example, as shown in Figure 5, the first driving signal connection line 402 is curved, which allows the optical structure to disrupt total internal reflection on the surface of the straight first driving signal connection line 402 when ambient light hits the display panel in a dark state. This avoids interference enhancement of reflected light from the surface of the first driving signal connection line 402, thus preventing the user from seeing the first driving signal line.

[0090] For example, referring to Figures 4 and 5, the first driving signal connection line 402 and the second electrode 502 are arranged in the same layer. The second electrode 502 is electrically connected to the first driving signal connection line 402 through a conductive structure 506. Multiple conductive structures 506 can be arranged at equal intervals on the same first driving signal connection line 402. Each conductive structure 506 can be electrically connected to a first driving signal line connection line 402, so that the first driving signal connection line 402, the first driving signal line 311, and the conductive structure 506 are evenly distributed around the light-emitting device, improving the consistency of the brightness of the light-emitting device, thereby making the display brightness of the display panel uniform.

[0091] For example, as shown in Figure 5, the curve of the first drive signal connection line has a small curvature and bends in the interval region between two adjacent rows of light-emitting devices.

[0092] Figure 6 is a schematic partial top view of another display panel provided in an embodiment of this disclosure. Exemplarily, as shown in Figure 6, the first drive signal connection line 402 includes an optical structure 405, which is electrically connected to the linear first drive signal connection line 402 and is disposed on the same layer as the linear first drive signal connection line 402. When the display panel is in a dark state, and ambient light shines on the display panel, the optical structure can disrupt the total internal reflection on the surface of the linear first drive signal connection line 402, preventing interference enhancement of reflected light from the surface of the linear first drive signal connection line 402, thereby preventing the user from seeing the first drive signal connection line.

[0093] In some implementations, multiple rows of pixel units are spaced between two adjacent first drive signal connection lines. Each pixel unit includes at least three light-emitting devices that emit light of different colors. Different display effects can be achieved by setting the arrangement density of the first drive signal connection lines.

[0094] Figure 7 is a schematic partial top view of a display panel provided in an embodiment of the present disclosure, and Figure 8 is a schematic partial top view of another display panel provided in an embodiment of the present disclosure. Exemplarily, multiple light-emitting devices can be spaced apart between adjacent first driving signal connection lines 402. The conductive structure 506 is disposed on the side with a larger rounded corner of the pixel opening; schematically, this could be the pixel opening where the red light-emitting device 401 is located, or it could be the side with a larger rounded corner of another pixel opening. As shown in Figure 7, the red light-emitting device 401, the blue light-emitting device 403, and the green light-emitting device 404 can constitute a pixel unit, and the first driving signal connection lines 402 are all connected to a row of pixel units 420 in the first direction X.

[0095] For example, as shown in Figure 8, the first drive signal connection line 402 connects to two rows of pixel units 421 in the first direction X. The required length of the first drive signal connection line 402 varies depending on the number of pixel rows. The shorter the connection line, the lower the resistance in the circuit, and the better the display effect.

[0096] In some embodiments, the driving layer includes multiple conductive layers. The conductive layers may be source / drain electrode layers and gate electrode layers, etc. Multiple source / drain electrode layers and multiple gate electrode layers may be present. The driving signal lines may be disposed on the same layer as the source / drain electrode layers. The driving signal lines may also be disposed on the same layer as the gate electrode layers. The first driving signal connection line may be disposed on the same layer as the first electrode. By disposing the driving signal lines on the same layer as the conductive layers and the first driving signal connection line on the same layer as the first electrode, the number of processing steps in the film layer can be reduced, the processing difficulty can be lowered, and the processing cost can be saved.

[0097] For example, referring to Figure 1, the first drive signal connection line 402 can be disposed on the same layer as the first electrode 503, the drive signal line 301 can be disposed on the same layer as the fourth electrode 304, and the drive signal line 301 can be disposed on the same layer as the fifth electrode 305. The fourth electrode 304 can be either a source or a drain, and the fifth electrode 305 can be either a source or a drain.

[0098] Figure 9 is a schematic partial cross-sectional view of another display panel provided in an embodiment of this disclosure. Exemplarily, as shown in Figure 9, the display panel further includes a partition structure 507, which is disposed between two adjacent pixel openings 505. The partition structure 507 can be used to partition the light-emitting layers 501 of two adjacent light-emitting devices, and can also be used to partition the second electrodes 502 of two adjacent light-emitting devices. By setting the partition structure, the second electrodes of two adjacent light-emitting devices are made independent of each other, and the second electrodes are electrically connected to the driving signal lines of the driving layer below. The driving layer can independently drive the second electrodes of the light-emitting devices, improving the brightness uniformity of the light-emitting devices, thereby making the display panel display brightness uniform.

[0099] For example, as shown in Figures 2 and 9, the partition structure 507 surrounds the pixel opening, thereby separating the light-emitting layers within adjacent pixel openings and separating the second electrodes within adjacent pixel openings to achieve a better partitioning effect. Indicatively, the partition structure 507 surrounds conductive structures 506 on both sides of the red light-emitting device 401 and around the green light-emitting device 404, respectively, to separate adjacent light-emitting devices, and the second electrodes of adjacent light-emitting devices are driven independently of each other.

[0100] For example, referring to FIG9, the conductive structure 506 includes a first conductive structure 511 and a second conductive structure 512. The side of the first conductive structure 511 near the partition structure 507 is electrically connected to the second electrode 502, and the side of the second conductive structure 512 away from the partition structure is electrically connected to the pixel circuit of the driving layer 300. The side of the first conductive structure 511 away from the partition structure is electrically connected to the side of the second conductive structure 512 near the partition structure. The second electrode 502 is electrically connected to the driving signal line through the first conductive structure 511 and the second conductive structure 512, respectively, so that the driving signal line is connected to the second electrode 502 to drive the second electrode 502. The first conductive structure 511 and the second conductive structure 512 can be disposed in different conductive layers. The first conductive structure passes through the pixel defining layer 504, and the second conductive structure 512 passes through the planarization layer 600. By providing two conductive structures, it is easier to distribute the electrode layers and to connect the conductive structures to the electrode layers, avoiding the presence of cutouts in the conductive structures that could affect the electrical connection between the second electrode and the pixel circuit, thus improving the reliability of the product.

[0101] For example, referring to FIG9, the fabrication sequence of the display panel is as follows: a driving layer 300 is fabricated on one side of the substrate layer 100; a planarization layer 600 is fabricated on the side of the driving layer 300 away from the substrate layer 100; a first electrode 503 and a second conductive structure 512 are fabricated on the side of the planarization layer 600 away from the substrate layer 100, with the first electrode 503 and the second conductive structure 512 disposed in the same layer; a pixel defining layer 504 is fabricated on the side of the first electrode 503 away from the substrate layer; a pixel opening 505 is fabricated by exposure and development on the side of the pixel defining layer 504 away from the first electrode 503, and a via 520 is fabricated by etching; then, a first conductive structure 511 and a blocking structure 507 are fabricated sequentially, with the first conductive structure 511 passing through the via 520 of the pixel defining layer 504; and a blocking structure 507 is fabricated on the side of the pixel defining layer 504 away from the substrate layer 100, with the blocking structure 507 partially covering the conductive structure 506. A light-emitting layer 501 is formed on the side of the partition structure 507 away from the first electrode 503, and a second electrode 502 is formed on the side of the light-emitting layer 501 away from the first electrode 503. A first inorganic encapsulation layer 601, an organic encapsulation layer 602, and a second inorganic encapsulation layer 603 are sequentially formed on the side of the second electrode 502 away from the substrate layer 100.

[0102] Figure 10 is a schematic partial cross-sectional view of another display panel provided in this embodiment. As shown in Figures 9 and 10, the partition structure 507 is disposed on the side of the conductive structure 506 away from the substrate layer, and the orthographic projection of the partition structure 507 on the substrate layer covers the orthographic projection of the conductive structure 506 on the substrate layer 100. The orthographic projection of the end of the partition structure 507 away from the conductive structure 506 is the first projection, and the orthographic projection of the partition structure closer to the conductive structure is the second projection. The dimension of the first projection along the first direction X is the first width L1, and the dimension of the second projection along the first direction X is the second width L2. The first width L1 is greater than the second width L2. The end near the conductive structure 506 and the end away from the conductive structure 506 are connected to form the first side surface 508 and the second side surface 509. The plane of the partition structure 507 away from the conductive structure 506 is the first plane 513. The connection of the first plane 513, the first side surface 508 and the second side surface 509 makes the partition structure 507 inverted trapezoidal shape, that is, wider at the top and narrower at the bottom. During the preparation of the second electrode 502, the second electrode 502 is deposited on the surface of the first plane 513, while the side surfaces of the first side surface 508 and the second side surface 509 will not be deposited on the second electrode 502. This means that there is no material of the second electrode on the two sides of the partition structure, so as to isolate the second electrode layer on both sides of the partition structure and realize the independent driving of the second electrode.

[0103] For example, as shown in Figure 10, the two sides of the partition structure 507 are inclined surfaces. The angle between the first side 508 and the plane where the substrate layer 100 is located is the first angle a1. The first angle a1 can be an acute angle. The angle range of the first angle a1 is 30 to 90 degrees. The smaller the first angle a1 is, the greater the inclination of the first side 508. During the preparation of the second electrode 502, the first side 508 is less likely to be deposited onto the second electrode 502. The better the partition effect of the partition structure 507, the higher the reliability of the product.

[0104] As shown in Figure 10, the partition structure can cover part of the edge of the conductive structure. The conductive structure includes a first side surface 514, a second side surface 515, and a third side surface 516. The partition structure 507 can cover the second side surface 515 and the third side surface 516 of the conductive structure, thereby isolating the conductive structure 506 from the unconnected second electrode 502 to achieve independent driving of the second electrode. The second electrode is connected to the conductive structure through the first side surface 514, and the second side surface and the second electrode are separated by the partition structure.

[0105] Referring, as exemplarily to Figures 9 and 10, the pixel defining layer may include a plurality of vias 520 located between adjacent pixel openings 505. The orthogonal projection of the conductive structure 506 onto the substrate layer 100 covers the orthogonal projection of the vias onto the substrate layer 100. The conductive structure 506 may pass through the vias 520 of the pixel defining layer 504. In the case where the conductive structure passes through the vias of the pixel defining layer, the conductive structure may be disposed in the same layer as the first electrode.

[0106] For example, two adjacent light-emitting devices may include a first light-emitting device and a second light-emitting device. A conductive structure may be disposed between the first light-emitting device and the second light-emitting device. The conductive structure is electrically connected to the second electrode of the first light-emitting device. There is a spacer structure between the conductive structure and the second electrode of the second light-emitting device. The second electrode of the first light-emitting device is electrically connected to the pixel circuit through a power generation structure. The driving circuit can drive the second electrode independently, so that the second electrodes of adjacent light-emitting devices are driven independently, avoiding voltage drop phenomenon when the second electrode covers the entire light-emitting layer, and improving the brightness uniformity of the display panel.

[0107] Figure 11 is a schematic partial cross-sectional view of another display panel provided in an embodiment of this disclosure. Exemplarily, as shown in Figure 11, the conductive structure may include a first conductive structure 517, a second conductive structure 518, and a third conductive structure 519. The first conductive structure 517 passes through a via in the pixel defining layer 504, the third conductive structure 519 is disposed on the side of the first conductive structure 517 away from the pixel defining layer 504, and the second conductive structure 518 is disposed between the first conductive structure 517 and the third conductive structure 519. The first conductive structure 517 and the third conductive structure 519 are made of the same metal material, while the second conductive structure 518 is made of a different metal material than the first conductive structure 517. The conductive structure may be a three-layer metal stack structure of molybdenum, aluminum, and molybdenum, or a metal layer of titanium, aluminum, and titanium stacked sequentially. The first and third conductive structures may both be molybdenum or titanium, and the second conductive structure may be aluminum. The first boundary S1 of the orthographic projection of the second conductive structure 518 on the substrate 100 falls within the orthographic projection boundary of the first conductive structure 517 on the substrate 100, and the first boundary S1 of the orthographic projection of the second conductive structure 518 on the substrate 100 falls within the orthographic projection boundary of the third conductive structure 519 on the substrate 100. The boundary of the orthographic projection of the first conductive structure 517 on the substrate 100 is the second boundary S2, and the boundary of the orthographic projection of the third conductive structure 519 on the substrate 100 is the third boundary S3. The second boundary S2 may coincide with the third boundary S3. One conductive structure can be electrically connected to the second electrode of the light-emitting device, two conductive structures can be electrically connected to the second electrode of the light-emitting device, or all three conductive structures can be electrically connected to the second electrode. By setting multiple conductive structures, the light-emitting layer can be further isolated while increasing the overlap area between the second electrode and the conductive structure, reducing the overlap resistance, and avoiding poor overlap of the second electrode.

[0108] For example, as shown in Figure 11, the side of the conductive structure not covered by the partition structure is provided with a groove. After the first layer of conductive structure 517, the second layer of conductive structure 518 and the third layer of conductive structure 519 are stacked in sequence, the recessed and extended parts of the edge can form a groove shape. The groove opening faces the pixel opening 505. The side of the conductive structure 506 with the groove is electrically connected to the second electrode 502, and the side of the conductive structure 506 away from the groove is connected to the partition structure 507.

[0109] Figure 12 is a schematic partial cross-sectional view of a display panel provided in an embodiment of this disclosure. As shown in Figure 12, the pixel defining layer may include multiple cutouts 522. The orthographic projection of the conductive structure 506 on the substrate layer 100 falls within the orthographic projection of the cutout 522 on the substrate layer 100, and the orthographic projection of the partition structure 507 on the substrate layer 100 also falls within the orthographic projection of the cutout 522 on the substrate layer 100. The conductive structure 506 can be disposed within the planarization layer 600. When the conductive structure 506 is disposed in the cutout 522 of the pixel defining layer, the conductive structure 506 can be disposed in the same layer as the first electrode 503. By disposing the conductive structure 506 within the planarization layer 600, the conductive structure 506 can be prepared before the preparation of the first electrode, avoiding damage to the first electrode. It also avoids drilling holes in the pixel defining layer, reducing the number of holes and reducing poor overlap.

[0110] For example, as shown in Figure 12, the manufacturing process of the display panel is as follows: a driving layer 300 is fabricated on one side of the substrate layer 100, with the driving signal line 301 co-layered with the fourth electrode 304 and the fifth electrode 305; a planarization layer 600 is fabricated on the side of the driving layer 300 away from the substrate layer 100; a conductive structure 506 is fabricated on the side of the planarization layer 600 away from the driving layer; then a first electrode 503 is fabricated, with the first electrode 503 co-layered with the conductive structure 506; then a pixel defining layer 504 is fabricated on the side of the first electrode 503 away from the substrate layer 100, with pixel openings 505 and cutouts 522 formed on the pixel defining layer; a partition structure 507 is fabricated on the side of the pixel defining layer 504 away from the first electrode 503, partially covering the conductive structure 506; both the conductive structure 506 and the partition structure 507 are disposed within the cutouts 522; and a groove is formed on the sidewall of the conductive structure 506 facing the pixel opening 505. A light-emitting layer 501 and a second electrode 502 are sequentially fabricated on the side of the partition structure 507 away from the first electrode 503. The second electrode 502 is partially deposited on the surface of the light-emitting layer 501 and partially deposited on the plane of the partition structure 507 away from the conductive structure 506. No second electrode 502 is deposited on the inclined surface of the partition structure 507. A first inorganic encapsulation layer 601, an organic encapsulation layer 602, and a second inorganic encapsulation layer 603 are fabricated on the side of the second electrode away from the substrate layer 100. By placing the conductive structure within the cutout 522 and inserting the conductive structure 506 through the planarization layer 600, the conductive structure 506 can be fabricated before the first electrode, avoiding damage to the first electrode. It also avoids drilling holes in the pixel boundary layer, reducing the number of holes and minimizing poor overlap.

[0111] Figure 13 is a schematic partial cross-sectional view of another display panel provided in an embodiment of this disclosure. As shown in Figure 13, the pixel defining layer includes a plurality of cutouts 522, the orthographic projection of the cutouts 522 on the substrate layer 100 falling within the orthographic projection of the conductive structure 506 on the substrate layer 100. The conductive structure is disposed between the second electrode 502 and the planarization layer 600. The second electrode 502 is electrically connected to the lateral first driving signal connection line, and the second electrode 502 is connected to the conductive structure 506 through the cutouts 522. The second electrode 502 is also electrically connected to the longitudinal driving signal line 301 through the conductive structure 506 to facilitate the realization of a mesh configuration.

[0112] For example, as shown in Figure 13, the fabrication sequence of the display panel is as follows: A driving layer 300 is fabricated on one side of the substrate layer 100, with the driving signal line 301 of the driving layer 300 disposed on the same layer as the third electrode 303 and the fourth electrode 304. A planarization layer 600 is fabricated on the side of the driving layer 300 away from the substrate layer 100. A first electrode 503 and a conductive structure 506 are fabricated on the side of the planarization layer 600 away from the driving layer, with the first electrode 503 and the conductive structure 506 disposed on the same layer. Then, a pixel defining layer 504 is fabricated, and the pixel defining layer 504 is etched to obtain pixel openings 505 and cutouts 522. A light-emitting layer 503 is fabricated on the side of the first electrode 503 away from the substrate layer 100, and a second electrode 502 is fabricated on the side of the light-emitting layer 501 away from the first electrode. Finally, a first inorganic encapsulation layer 601, an organic encapsulation layer 602, and a second inorganic encapsulation layer 603 are fabricated. By placing the conductive structure within the cutout 522 and inserting the conductive structure 506 through the planarization layer 600, the conductive structure 506 can be fabricated before the first electrode, avoiding damage to the first electrode. This also avoids drilling holes in the pixel boundary layer, reducing the number of holes and minimizing overlap defects. Simultaneous fabrication of the cutout 522 and pixel openings 5005 in the display panel eliminates the need for additional photomasks, reducing processing difficulty and saving costs.

[0113] A second aspect of this disclosure provides a display device. FIG14 is a schematic structural diagram of a display device provided in an embodiment of this disclosure. As shown in FIG14, the display device 2000 includes a display panel 1000 as described in the first aspect.

[0114] The display device provided in this embodiment of the present disclosure, by disposing a conductive structure between at least two adjacent pixel openings, that is, by disposing the conductive structure 506 between adjacent first electrodes, and electrically connecting the second electrode of the light-emitting device to the driving circuit of the driving layer through the conductive structure, enables the second electrode of the light-emitting device to be driven independently or to have multiple driving signal inputs, thereby overcoming or improving the voltage drop problem of the entire second electrode, thus making the brightness of the entire display panel uniform and improving the display effect of the display screen.

[0115] The display devices provided in this disclosure may include televisions, computers, smartphones, smart wearable devices, laptops, and tablets, etc. Smart wearable devices may include smartwatches, AR (augmented reality) devices, and VR (virtual reality) devices, etc.

[0116] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0117] The above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit it. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this disclosure.

[0118] Although preferred embodiments have been described in this specification, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this specification.

[0119] Obviously, those skilled in the art can make various modifications and variations to this specification without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims and their equivalents, this specification is also intended to include such modifications and variations.

[0120] The foregoing description has described specific embodiments, which, along with other embodiments, are covered within the scope of the appended claims. In some cases, the actions or steps recited in the claims may be performed in a different order than those shown in the embodiments and may still achieve the desired results. Furthermore, the processes depicted in the drawings do not necessarily follow the specific or sequential order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also feasible or advantageous.

[0121] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0122] It should be understood that the above-described embodiments are merely illustrative of the purpose of this invention and are not intended to limit the invention. Those skilled in the art can implement this invention in other ways without departing from its basic spirit and characteristics. The scope of this invention is defined by the appended claims, and any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments of this specification should be covered herein.

Claims

1. A display panel, characterized in that, include: Substrate layer; A driving layer is disposed on one side of the substrate layer, and the driving layer includes a driving circuit. A light-emitting device layer is disposed on the side of the driving layer away from the substrate layer. The light-emitting device layer includes a pixel defining layer and a plurality of light-emitting devices. Each light-emitting device includes a first electrode, a light-emitting layer, and a second electrode. The pixel defining layer includes a plurality of pixel openings. The light-emitting layer is disposed at the pixel openings. The orthogonal projections of the first electrode and the second electrode on the substrate layer both cover the orthogonal projections of the pixel openings on the substrate layer. The first electrode is disposed between the substrate layer and the light-emitting layer. The light-emitting layer is disposed between the first electrode and the second electrode. The orthogonal projections of the first electrodes of different light-emitting devices on the substrate layer do not overlap. The first electrode is electrically connected to the driving circuit, and a conductive structure is provided between at least two of the first electrodes. The second electrode is electrically connected to the driving circuit through the conductive structure.

2. The display panel according to claim 1, characterized in that, The second electrodes of at least two of the light-emitting devices are independently driven by different conductive structures.

3. The display panel according to claim 1, characterized in that, The driving circuit includes a pixel circuit and driving signal lines. The driving signal lines include a first driving signal line. The pixel circuit is electrically connected to at least a portion of the driving signal lines. The first electrode is electrically connected to the pixel circuit. The second electrode is electrically connected to the first driving signal line through the conductive structure.

4. The display panel according to claim 3, characterized in that, Also includes: The first drive signal connection line is electrically connected to the second electrode; The length extension direction of the first drive signal connection line is different from the length extension direction of the first drive signal line; And / or, The first drive signal connection line and the first drive signal line are disposed on different conductive layers.

5. The display panel according to claim 4, characterized in that, Multiple first drive signal connection lines and multiple first drive signal lines are provided, and the multiple signal connection lines and multiple first drive signal lines are arranged to intersect to form a mesh structure.

6. The display panel according to claim 5, characterized in that, The same first driving signal connection line is electrically connected to multiple light-emitting devices, and at least one light-emitting device is disposed between adjacent conductive structures.

7. The display panel according to claim 6, characterized in that, The shape of the first drive signal connection line includes a curved line, a polygonal line, or a straight line; and / or, The first drive signal connection line includes an optical structure, which is connected to the first drive signal connection line and is disposed on the same layer as the first drive signal connection line.

8. The display panel according to claim 3, characterized in that, The first driving signal connection line and the first driving signal line are arranged in a cross configuration to surround a plurality of pixel units, wherein the pixel unit includes at least three light-emitting devices that emit light of different colors.

9. The display panel according to claim 3, characterized in that, Multiple rows of pixel units are spaced between two adjacent first drive signal connection lines, and each pixel unit includes at least three light-emitting devices that emit light of different colors.

10. The display panel according to any one of claims 1 to 9, characterized in that, The driving layer includes multiple conductive layers; The drive signal line is disposed on the same layer as at least one of the conductive layers; and / or The conductive structure is disposed in the same layer as at least one of the conductive layers; and / or The first drive signal connection line is disposed on the same layer as the first electrode.

11. The display panel according to any one of claims 1 to 9, characterized in that, Also includes: A partition structure is disposed between two adjacent pixel openings, the partition structure being used to isolate the light-emitting layer and / or the second electrode.

12. The display panel according to claim 11, characterized in that, The conductive structure at least partially surrounds the pixel opening; and / or The partition structure surrounds the pixel opening.

13. The display panel according to claim 12, characterized in that, The conductive structure is disposed between two adjacent light-emitting devices. The conductive structure is electrically connected to the second electrode of one of the adjacent light-emitting devices, and a portion of the partition structure is spaced between the conductive structure and the second electrode of the other adjacent light-emitting device.

14. The display panel according to claim 13, characterized in that, The partition structure is disposed on the side of the conductive structure away from the substrate layer, and the orthographic projection of the partition structure on the substrate layer covers the orthographic projection of the conductive structure on the substrate layer; The orthographic projection of the end of the partition structure away from the conductive structure is the first projection. The orthographic projection of the partition structure near the conductive structure is the second projection. The size of the first projection along the first direction is greater than the size of the second projection along the first direction, wherein the first direction is the direction in which the openings of two adjacent pixels are connected.

15. The display panel according to claim 14, characterized in that, The angle between the side of the partition structure facing the pixel opening and the plane where the substrate layer is located is an acute angle.

16. The display panel according to claim 13, characterized in that, The partition structure at least partially covers a portion of the edge of the conductive structure to separate the conductive structure from the unconnected second electrode.

17. The display panel according to claim 13, characterized in that, The conductive structure includes a first conductive structure and a second conductive structure; The side of the first conductive structure closest to the partition structure is electrically connected to the second electrode, and the side of the second conductive structure furthest from the partition structure is electrically connected to the drive signal line; The first conductive structure and the second conductive structure are disposed on different conductive layers.

18. The display panel according to claim 17, characterized in that, The second conductive structure includes a first conductive layer, a second conductive layer, and a third conductive layer, wherein the second conductive layer is disposed between the first conductive layer and the second conductive layer. The first boundary of the orthographic projection of the second conductive structure on the substrate falls within the orthographic projection boundary of the first conductive structure on the substrate; The first boundary of the orthographic projection of the second conductive structure on the substrate falls within the orthographic projection boundary of the third conductive structure on the substrate; At least one conductive structure is electrically connected to the second electrode of an adjacent light-emitting device.

19. The display panel according to claim 16, characterized in that, The conductive structure has a groove on the side not covered by the partition structure, the groove opening faces the pixel opening, the side of the conductive structure with the groove is electrically connected to the second electrode, and the side of the conductive structure away from the groove is connected to the partition structure.

20. The display panel according to claim 11, characterized in that, The pixel defining layer includes a plurality of vias, the vias being located between at least two adjacent pixel openings, at least a portion of the conductive structure passing through the vias, and the orthogonal projection of the conductive structure on the substrate layer covering the orthogonal projection of the vias on the substrate layer; The conductive structure is disposed in the same layer as the first electrode.

21. The display panel according to claim 11, characterized in that, The pixel defining layer includes multiple cutouts, and the orthographic projection of the conductive structure on the substrate layer falls within the orthographic projection of the cutout on the substrate layer, and the orthographic projection of the partition structure on the substrate layer falls within the orthographic projection of the cutout on the substrate layer.

22. The display panel according to claim 11, characterized in that, The pixel defining layer includes multiple cutouts, the orthographic projection of which falls on the substrate layer into the orthographic projection of the conductive structure on the substrate layer, and the second electrode is electrically connected to the conductive structure through the cutouts.

23. A display device, characterized in that, include: The display panel as described in any one of claims 1 to 22.

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