Display panel and display device

Abstract

The invention provides a display panel and a display device. The display panel comprises a sub-pixel, a pixel limiting pattern, a first metal pattern and a second metal pattern, the sub-pixel comprises a light-emitting functional layer, a first electrode and a second electrode, at least part of the pixel limiting pattern is located between the light-emitting functional layer and the first electrode, and the first metal pattern is located between the first electrode of the sub-pixel and the substrate; the second metal pattern is located between the first metal pattern and the substrate, the light-emitting areas of at least part of the sub-pixels are overlapped with the second metal pattern, the first metal pattern comprises a plurality of first main body parts, at least part of the first main body parts are connected with one another, and in the direction perpendicular to the substrate, the light-emitting areas of the sub-pixels are overlapped with the second metal pattern. According to the display panel, the orthographic projection of the light-emitting area of each sub-pixel in the at least one sub-pixel on the substrate falls into the orthographic projection of the first main body part on the substrate, and the first electrode of the sub-pixel in the display panel has good flatness, so that the risk of color cast is low.

Description

Technical Field

[0001] At least one embodiment of the present disclosure relates to a display panel and a display device. Background Art

[0002] As the demand for display screen power reduction increases, multiple technologies are integrated into display screens to obtain products with lower power consumption. For example, color filter on Encapsulation (COE) technology, Low Temperature Polycrystalline Oxide (LTPO) technology, and VSS in Pixel (SIP) technology that distributes the power signal VSS in a grid pattern in the pixel light-emitting area have gradually been applied to multiple products. Summary of the invention

[0003] At least one embodiment of the present disclosure provides a display panel, comprising: a substrate, a plurality of sub-pixels, a pixel defining pattern, a first metal pattern and a second metal pattern, wherein the plurality of sub-pixels are located on the substrate, the sub-pixels include a light-emitting functional layer, and a first electrode and a second electrode located on both sides of the light-emitting functional layer in a direction perpendicular to the substrate, the first electrode being located between at least a portion of the light-emitting functional layer and the substrate; at least a portion of the pixel defining pattern is located between the light-emitting functional layer and the first electrode, the pixel defining pattern includes a plurality of pixel openings, and a pixel defining portion located between adjacent pixel openings, the pixel opening exposing at least a portion of the first electrode to define a light-emitting region of the sub-pixel; the first metal pattern is located between the first electrode of the sub-pixel and the substrate; the second metal pattern is located between the first metal pattern and the substrate, in a direction perpendicular to the substrate, the light-emitting regions of at least some of the sub-pixels overlap with the second metal pattern, wherein the first metal pattern includes a plurality of first main portions, at least some of the first main portions are connected to each other, and in a direction perpendicular to the substrate, the orthographic projection of the light-emitting region of at least one sub-pixel on the substrate falls into the orthographic projection of the first main portion on the substrate.

[0004] For example, according to the display panel provided by at least one embodiment of the present disclosure, the second metal pattern includes a plurality of second main body parts, at least some of the second main body parts are connected to each other, and the at least some of the sub-pixels include a first part of sub-pixels and a second part of sub-pixels. In a direction perpendicular to the base substrate, the orthographic projection of the light-emitting area of ​​each sub-pixel in the first part of sub-pixels on the base substrate falls into the orthographic projection of the second main body part on the base substrate, and the light-emitting area of ​​each sub-pixel in the second part of sub-pixels does not overlap with the second main body part.

[0005] For example, according to the display panel provided by at least one embodiment of the present disclosure, the orthographic projection of the light-emitting area of ​​each sub-pixel in the second part of sub-pixels on the base substrate falls within the orthographic projection of the first main body on the base substrate.

[0006] For example, according to the display panel provided by at least one embodiment of the present disclosure, the orthographic projection of the light-emitting area of ​​each sub-pixel in the first part of sub-pixels on the base substrate falls within the orthographic projection of the first main body on the base substrate.

[0007] For example, in a display panel provided according to at least one embodiment of the present disclosure, the plurality of sub-pixels include a first group of sub-pixels and a second group of sub-pixels, the first group of sub-pixels and the second group of sub-pixels each include at least one color sub-pixel, a light-emitting area of ​​each sub-pixel in the first group of sub-pixels overlaps with both the first main body portion and the second main body portion, and a light-emitting area of ​​each sub-pixel in the second group of sub-pixels overlaps with one of the first main body portion and the second main body portion.

[0008] For example, according to the display panel provided by at least one embodiment of the present disclosure, the first group of sub-pixels includes red sub-pixels and blue sub-pixels, and the second group of sub-pixels includes green sub-pixels; or the first group of sub-pixels includes green sub-pixels, and the second group of sub-pixels includes red sub-pixels and blue sub-pixels.

[0009] For example, according to the display panel provided by at least one embodiment of the present disclosure, the first metal pattern also includes a plurality of connecting parts, the first main body part is connected to another first main body part through the connecting parts, the orthographic projection of the connecting part on the base substrate is in the shape of a strip, and the orthographic projection of the connecting part on the base substrate has no overlap with the light-emitting area of ​​the sub-pixel.

[0010] For example, in a display panel provided according to at least one embodiment of the present disclosure, the plurality of first main body portions are arranged in an array along a first direction and a second direction to form a plurality of first main body portion rows arranged along the second direction and a plurality of first main body portion columns arranged along the first direction, and the first direction and the second direction are both parallel to the base substrate, and the first direction intersects with the second direction.

[0011] For example, according to the display panel provided by at least one embodiment of the present disclosure, the connecting portion extends along the first direction or the second direction, adjacent first main body portions in the first main body portion row are connected by the connecting portion, and adjacent first main body portions in the first main body portion column are connected by the connecting portion.

[0012] For example, according to the display panel provided by at least one embodiment of the present disclosure, the connecting portion extends along the first arrangement direction or the second arrangement direction, the first main body portion is connected to the first main body portion adjacent to the first arrangement direction or the second arrangement direction, the first arrangement direction and the second arrangement direction are both parallel to the base substrate, and the first arrangement direction intersects with the second arrangement direction, and the first arrangement direction and the second arrangement direction both intersect with the first direction and both intersect with the second direction.

[0013] For example, according to the display panel provided by at least one embodiment of the present disclosure, the first metal pattern is an integrated mesh structure.

[0014] For example, according to the display panel provided by at least one embodiment of the present disclosure, the orthographic projection shape of the first main body portion on the base substrate is different from the orthographic projection shape of the second main body portion on the base substrate.

[0015] For example, according to the display panel provided by at least one embodiment of the present disclosure, the orthographic projection shape of the light-emitting area of ​​the at least one sub-pixel on the base substrate is the same as the orthographic projection shape of the first main body on the base substrate.

[0016] For example, according to the display panel provided by at least one embodiment of the present disclosure, the orthographic projection of the light-emitting area of ​​each sub-pixel of the plurality of sub-pixels on the base substrate falls within the orthographic projection of the first main body on the base substrate.

[0017] For example, in the display panel provided according to at least one embodiment of the present disclosure, the first metal pattern is configured to transmit a first signal, and the second metal pattern is configured to transmit a second signal, and the first signal is different from the second signal.

[0018] For example, according to the display panel provided by at least one embodiment of the present disclosure, the second metal pattern includes a plurality of signal lines overlapping the first main body, and the signal lines extend along the second arrangement direction, and the surface of the first main body away from the base substrate is flat.

[0019] For example, a display panel provided according to at least one embodiment of the present disclosure further includes a light shielding layer and a color filter layer, the light shielding layer is located on a side of the second electrode away from the base substrate, the light shielding layer includes a plurality of first openings and a plurality of second openings, the orthographic projection of the first opening on the base substrate at least partially overlaps with the orthographic projection of the pixel opening on the base substrate, the color filter layer is located on a side of the light shielding layer away from the base substrate, the color filter layer includes a plurality of color filter parts, the orthographic projection of the light emitting area of ​​the sub-pixel on the base substrate falls within the orthographic projection of the color filter part on the base substrate; wherein the sub-pixel further includes a pixel driving electrode The pixel driving circuit is located at least partially between the first electrode and the base substrate, and is configured to drive the light-emitting functional layer of the sub-pixel to emit light. The pixel defining pattern also includes a plurality of defining openings, and the defining openings are spaced apart from the pixel openings. The orthographic projection of the defining opening on the base substrate overlaps with the orthographic projection of the second opening on the base substrate at least partially, and there is a gap between the orthographic projection of the defining opening on the base substrate and the orthographic projection of at least part of the pixel driving circuit on the base substrate, and the orthographic projection of the defining opening on the base substrate does not overlap with the orthographic projection of the color filter portion on the base substrate.

[0020] For example, according to the display panel provided by at least one embodiment of the present disclosure, the minimum distance between the orthographic projection of the defined opening on the base substrate and the orthographic projection of the first main body on the base substrate is 1.5 to 10 micrometers.

[0021] At least one embodiment of the present disclosure further provides a display device, which includes the display panel provided by the embodiment of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present disclosure, but are not intended to limit the present disclosure.

[0023] Figure 1 to Figure 3 Schematic diagram of the routing of three types of metal grids.

[0024] Figure 4 It is a partial plan view of a display panel.

[0025] Figure 5 A partial plan view of another display panel.

[0026] Figure 6 A partial cross-sectional schematic diagram of a display panel provided for at least one embodiment of the present disclosure.

[0027] Figure 7 A schematic diagram of a first metal pattern provided for at least one embodiment of the present disclosure.

[0028] Figure 8 A schematic diagram of a stacking of a first metal pattern and a second metal pattern provided for at least one embodiment of the present disclosure.

[0029] Fig. 9 Another schematic diagram of stacking a first metal pattern and a second metal pattern provided for at least one embodiment of the present disclosure.

[0030] Fig.10 A schematic diagram of another first metal pattern provided for at least one embodiment of the present disclosure.

[0031] Fig.11 A schematic diagram of another stacking of a first metal pattern and a second metal pattern provided for at least one embodiment of the present disclosure.

[0032] Fig.12 A schematic diagram of another stacking of a first metal pattern and a second metal pattern provided for at least one embodiment of the present disclosure.

[0033] Fig.13 A partial plan view of a display panel provided for at least one embodiment of the present disclosure.

[0034] Fig.14 Another partial schematic plan view of a display panel provided for at least one embodiment of the present disclosure.

[0035] Fig.15 A partial cross-sectional schematic diagram of another display panel provided for at least one embodiment of the present disclosure.

[0036] Fig.16 A schematic diagram of a pixel circuit is provided for at least one embodiment of the present disclosure. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0038] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The words "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. The words "include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0039] The features "perpendicular", "parallel" and "same" used in the embodiments of the present disclosure include the features "perpendicular", "parallel" and "same" in a strict sense, as well as "approximately perpendicular", "approximately parallel" and "approximately the same" which contain certain errors, taking into account the errors associated with the measurement of specific quantities (that is, the limitations of the measurement system), indicating that the acceptable deviation range for a specific value is determined by ordinary technicians in this field. The "center" in the embodiments of the present disclosure can include a position strictly located at the geometric center and a position approximately located at the center of a small area around the geometric center.

[0040] Generally, SIP technology is to reduce the load by setting metal grid wiring around the pixel in pixel circuit design, thereby reducing power consumption. When SIP technology is applied to color organic electroluminescent (COE) products, the grid wiring layout will affect the anode flatness of the sub-pixel. This effect needs to be carefully considered and controlled to ensure the performance and reliability of the display.

[0041] Figure 1 to Figure 3 Schematic diagrams of three types of metal grid routing. For example, the metal grid routing and the sub-pixel are both located on the substrate, and the metal grid routing is arranged adjacent to the sub-pixel, that is, in a direction perpendicular to the substrate (not shown in the figure), no other metal routing is arranged between the sub-pixel and the metal grid routing, and the metal grid routing can be a metal routing located on the side of the sub-pixel close to the substrate and closest to the light-emitting area of ​​the sub-pixel.

[0042] For example, Figure 1As shown, the metal grid routing includes a plurality of metal grids 010 , and each metal grid 010 surrounds a light emitting area 020 of a sub-pixel. Figure 1 It is schematically shown that the orthographic projection of the metal grid 010 on the base substrate is approximately a matrix, and the orthographic projection of the light emitting area 020 of the sub-pixel on the base substrate is approximately a circle, but it is not limited thereto.

[0043] For example, Figure 2 As shown, the metal grid routing includes multiple metal grids 010 and multiple extensions 011. The light-emitting area 020 of each sub-pixel in a part of the sub-pixels is surrounded by the metal grid 010, and the light-emitting area 020 of each sub-pixel in another part of the sub-pixels is not surrounded by the metal grid 010, but overlaps with the extension 011.

[0044] For example, Figure 3 As shown, the metal grid routing includes a plurality of metal grids 010, and each metal grid 010 surrounds a light emitting area 020 of a plurality of sub-pixels. Figure 3 The description is made by taking the example that each metal grid 010 surrounds the light emitting areas 020 of two sub-pixels at most, but the present invention is not limited thereto.

[0045] For example, according to Figure 1 to Figure 3 It can be seen that when other structures between the metal grid 010 and the base substrate are arranged asymmetrically with respect to the light-emitting area 020 of the sub-pixel, when the light-emitting area 020 of the sub-pixel is surrounded by the adjacent metal grid 010, the metal grid 010 has basically no effect of improving the flatness of the anode (not shown in the figure) of the sub-pixel, and when the light-emitting area 020 of the sub-pixel overlaps with the extension 011 (such as Figure 2 As shown in FIG. 1 , the extension 011 may damage the flatness of the anode of the sub-pixel.

[0046] Figure 4 is a partial plan view of a display panel; Figure 5 A partial plan view of another display panel.

[0047] For example, Figure 4 As shown, the display panel has a pixel circuit of low temperature polysilicon (LTPS). The metal layer located on the side of the anode of the sub-pixel close to the substrate has multiple metal structures, for example, the multiple metal structures include a data line DATA, a power signal line VDD, a connection structure between the light-emitting area 020 of the sub-pixel and the anode connection hole N, and a connection block BLO, etc., and the multiple metal structures are arranged asymmetrically relative to the light-emitting area 020 of the sub-pixel, so the flatness of the anode of the sub-pixel may be destroyed, resulting in a higher risk of color deviation and color separation.

[0048] For example, Figure 5 As shown, the display panel has a pixel circuit of low temperature polysilicon (LTPS). There are multiple metal structures in the metal layer located on the side of the anode of the sub-pixel close to the substrate substrate, for example, the multiple metal structures include a data line DATA, a power signal line VDD, etc. The light-emitting area 020 of each sub-pixel in a part of the sub-pixels is located on the power signal line VDD, and the positive projection of the light-emitting area 020 of the sub-pixel on the substrate substrate completely falls into the positive projection of the power signal line VDD on the substrate substrate, so the anode of this part of the sub-pixels has good flatness. However, the anode of each sub-pixel in another part of the sub-pixels (for example, sub-pixels with different light-emitting colors from the above part of the sub-pixels) overlaps with the two data lines DATA, and the positive projection of the light-emitting area 020 of the sub-pixel on the substrate substrate does not completely fall into the positive projection of the power signal line VDD on the substrate substrate, so that the flatness of the anode of this part of the sub-pixels is poor, which leads to a higher risk of color deviation and color separation. Therefore, in Figure 5 In the display panel shown, the anode flatness of sub-pixels of different colors is different, which may cause uneven light emission effects of sub-pixels of different colors, affecting the overall display effect of the display panel.

[0049] As described above, it is very important to propose a solution that can effectively improve the flatness of the anode of the sub-pixel, reduce the risk of color shift and color separation, and make the overall display effect of the display panel uniform and good.

[0050] An embodiment of the present disclosure provides a display panel, including a substrate, a plurality of sub-pixels, a pixel defining pattern, a first metal pattern and a second metal pattern, wherein the plurality of sub-pixels are located on the substrate, the sub-pixels include a light-emitting functional layer, and a first electrode and a second electrode located on both sides of the light-emitting functional layer in a direction perpendicular to the substrate, the first electrode being located between at least a portion of the light-emitting functional layer and the substrate; at least a portion of the pixel defining pattern is located between the light-emitting functional layer and the first electrode, the pixel defining pattern includes a plurality of pixel openings, and a pixel defining portion located between adjacent pixel openings, the pixel openings exposing at least a portion of the first electrode to define a light-emitting area of ​​the sub-pixel; the first metal pattern is located between the first electrode of the sub-pixel and the substrate; the second metal pattern is located between the first metal pattern and the substrate, in a direction perpendicular to the substrate, the light-emitting area of ​​at least a portion of the sub-pixel overlaps with the second metal pattern, wherein the first metal pattern includes a plurality of first main portions, at least a portion of the first main portions are connected to each other, and in a direction perpendicular to the substrate, the orthographic projection of the light-emitting area of ​​at least one sub-pixel on the substrate falls into the orthographic projection of the first main portion on the substrate.

[0051] In the display panel provided by at least one embodiment of the present disclosure, by setting the first metal pattern between the second metal pattern and the light-emitting area of ​​the sub-pixel, and making the orthographic projection of the light-emitting area of ​​at least one sub-pixel on the base substrate completely fall into the orthographic projection of the first main part on the base substrate, the flatness of the first electrode of the sub-pixel can be effectively improved by the first metal pattern, and the influence of other structures (such as the second metal pattern) located between the first metal pattern and the base substrate on the flatness of the first electrode of the sub-pixel can be reduced, thereby effectively improving the flatness of the first electrode of the sub-pixel, reducing the risk of color deviation and color separation, and making the overall display effect of the display panel uniform and good.

[0052] The display panel and the display device provided by the embodiments of the present disclosure are described in more detail below in conjunction with the accompanying drawings, so that the corresponding technical solutions can be clearer and easier to understand.

[0053] Figure 6 A partial cross-sectional schematic diagram of a display panel provided for at least one embodiment of the present disclosure; Figure 7 A schematic diagram of an overlapping relationship between a first metal pattern and a light-emitting area provided for at least one embodiment of the present disclosure; Figure 8 A schematic diagram of a stacking of a light-emitting area, a first metal pattern, and a second metal pattern provided for at least one embodiment of the present disclosure.

[0054] like Figure 6 As shown, the display panel includes a base substrate 100, and a plurality of sub-pixels 10 located on the base substrate 100. The sub-pixels 10 include a light-emitting functional layer 130, and a first electrode 110 and a second electrode 120 located on both sides of the light-emitting functional layer 130 in a direction perpendicular to the base substrate 100, wherein the first electrode 110 is located between at least a portion of the light-emitting functional layer 130 and the base substrate 100.

[0055] like Figure 6 As shown, the light-emitting functional layer 130 may include a plurality of film layers. For example, the light-emitting functional layer 130 may include a light-emitting layer for emitting light and a charge generating layer, and the charge generating layer has strong conductivity, which can make the light-emitting functional layer 130 have the advantages of long life, low power consumption and high brightness. For example, the light-emitting functional layer 130 may be a film layer in an organic light-emitting element. For example, the light-emitting functional layer 130 may include a first light-emitting layer (EML), a charge generating layer (CGL) and a second light-emitting layer (EML) arranged in a stacked manner, and the charge generating layer is located between the first light-emitting layer and the second light-emitting layer.

[0056] It should be noted that the light-emitting functional layer 130 may also include other film layers, such as a hole injection layer (HIL), a hole transport layer (HTL), an electron transport layer (ETL), and an electron injection layer (EIL), etc., which are not limited in the embodiments of the present disclosure. For example, the hole injection layer, the hole transport layer, the electron transport layer, the electron injection layer, the charge generation layer, and the second electrode 120 are all common film layers of multiple sub-pixels 10, and can be called a common layer. In addition, Figure 6 The thickness of each film layer shown is only for illustrating each film layer clearly and does not represent the actual size.

[0057] For example, Figure 6 As shown, other structures 0020 are also provided on the side of the first electrode 110 facing the substrate 100, such as a pixel driving circuit, a signal line, and various insulating layers electrically connected to the first electrode 110 of the sub-pixel 10. For example, the insulating layer may include a passivation layer, a buffer layer, a gate insulating layer, an interlayer insulating layer, etc., which are not limited in the embodiments of the present disclosure. The pixel driving circuit is located between the first electrode 110 and the substrate 100, and is configured to drive the light-emitting functional layer 130 of the sub-pixel 10 to emit light. For example, the pixel driving circuit may include a plurality of transistors (such as thin film transistors) and at least one capacitor (not shown in the figure), and the first electrode 110 may be electrically connected to the pixel driving circuit through a connecting via to drive the light-emitting functional layer 130 to emit light. For example, the first electrode 110 may be an anode, and the second electrode 120 may be a cathode.

[0058] like Figure 6 As shown, the display panel further includes a pixel defining pattern 200, at least part of which is located between the light-emitting functional layer 130 and the first electrode 110. The pixel defining pattern 200 includes a plurality of pixel openings 201, and a pixel defining portion 210 located between adjacent pixel openings 201. The pixel opening 201 exposes at least part of the first electrode 110 to define the light-emitting region 101 of the sub-pixel 10. The light-emitting functional layer 130 is arranged in contact with the first electrode 110 through the pixel opening 201. For example, the first electrode 110 and the second electrode 120 located on both sides of the light-emitting functional layer 130 can drive the light-emitting functional layer 130 located therebetween to emit light. For example, the light-emitting region of the sub-pixel 10 refers to the region where the sub-pixel 10 effectively emits light, and the shape of the light-emitting region refers to a two-dimensional shape, for example, the shape of the light-emitting region can be the same as the shape of the orthographic projection of the portion of the first electrode 110 exposed by the pixel opening 201 on the base substrate 100.

[0059] like Figure 6As shown, the display panel includes a first metal pattern 310 and a second metal pattern 320 . The first metal pattern 310 is located between the first electrode 110 of the sub-pixel 10 and the base substrate 100 , and the second metal pattern 320 is located between the first metal pattern 310 and the base substrate 100 .

[0060] like Figure 7 and Figure 8 As shown, the first metal pattern 310 includes a plurality of first main bodies 311, and at least some of the first main bodies 311 are connected to each other. In a direction perpendicular to the substrate 100, the orthographic projection of the light-emitting area 101 of at least one sub-pixel 10 on the substrate 100 falls into the orthographic projection of the first main body 311 on the substrate 100. The light-emitting area 101 of at least some of the sub-pixels 10 overlaps with the second metal pattern 320. For example, the light-emitting area 101 of at least some of the sub-pixels 10 may fall into the orthographic projection of the second metal pattern 320 on the substrate. For example, the second metal pattern 320 may be as follows Figure 4 and Figure 5 The metal film layer where the data line DATA is located, but not limited to this. Figure 6 As shown, the first metal pattern 310 is closer to the light emitting area 101 of the sub-pixel 10 than the second metal pattern 320 .

[0061] In the display panel provided by at least one embodiment of the present disclosure, by setting a first metal pattern between a second metal pattern and a light-emitting area of ​​a sub-pixel, and making the orthographic projection of the light-emitting area of ​​at least one sub-pixel on the base substrate fall within the orthographic projection of the first main body on the base substrate, the flatness of the first electrode of the sub-pixel can be effectively improved by the first metal pattern, and the influence of other structures (such as the second metal pattern) between the first metal pattern and the base substrate on the flatness of the first electrode of the sub-pixel can be reduced, thereby effectively improving the flatness of the anode of the sub-pixel, reducing the risk of color deviation and color separation, and making the overall display effect of the display panel uniform and good.

[0062] For example, Figure 6 As shown, the first metal pattern 310 is configured to transmit a first signal, and the second metal pattern 320 is configured to transmit a second signal, and the first signal is different from the second signal. For example, the first signal may be a power signal VSS. For example, the second signal may include a plurality of sub-signals. For example, the second metal pattern 320 includes a plurality of signal lines overlapping with the first main body 311, and the signal lines are arranged along the second direction N (see Figure 8 ) extends, for example, the plurality of signal lines may include a data line DATA, a power signal VDD, etc. The surface of the first main portion 311 away from the substrate is flat, thereby enabling the light-emitting area 101 of the sub-pixel to have good flatness.

[0063] When the second metal pattern 320 is Figure 4 and Figure 5 When the metal film layer where the data line DATA is located is formed, the multiple sub-signals may include a data signal, a power signal, etc.

[0064] By making the first signal different from the second signal, the influence of the second signal on the signal in the light-emitting functional layer of the sub-pixel can be reduced by the first signal, so as to make the sub-pixel have a stable and good light emitting effect.

[0065] For example, Figure 6 and Figure 8 As shown, the orthographic projection shape of the first main body portion 311 on the substrate 100 is different from the orthographic projection shape of the second main body portion 321 on the substrate 100. For example, the orthographic projection shape of the first main body portion 311 on the substrate 100 is approximately circular, and the orthographic projection shape of the second main body portion 321 on the substrate 100 is approximately rectangular, but is not limited thereto. For example, the orthographic projection area of ​​the first main body portion 311 on the substrate 100 is different from the orthographic projection area of ​​the second main body portion 321 on the substrate 100, and the embodiments of the present disclosure are not limited thereto.

[0066] Such a configuration is beneficial to simplifying the manufacturing process of the first main body and reducing the position matching accuracy between the first main body and the second main body.

[0067] For example, Figure 8 As shown, the orthographic projection shape of the light emitting area 101 of at least one sub-pixel on the base substrate 100 is the same as the orthographic projection shape of the first main body 311 on the base substrate, for example, both are roughly circular.

[0068] Such a configuration is beneficial for ensuring that the orthographic projection of the light-emitting area of ​​the sub-pixel on the substrate falls within the orthographic projection of the first main body on the substrate and maintains a uniform and appropriate spacing with the orthographic projection of the first main body on the substrate, and is beneficial for reducing the layout space occupied by the first main body.

[0069] For example, Figure 8 As shown, the second metal pattern 320 includes a plurality of second main body portions 321, and at least some of the second main body portions 321 are connected to each other. For example, the plurality of second main body portions 321 are arranged in an array in the first arrangement direction M and the second arrangement direction N, and form a plurality of second main body portion rows arranged along the second arrangement direction M and a plurality of second main body portion columns arranged along the first arrangement direction N. Adjacent second main body portions 321 in the second main body portion columns are connected to each other, and adjacent second main body portions 321 in the second main body portion 321 rows are arranged at intervals.

[0070] For example, Figure 6 and Figure 8As shown, at least part of the sub-pixels 10 overlapping with the second metal pattern 320 includes a first part of the sub-pixels 11 and a second part of the sub-pixels 12. In a direction perpendicular to the substrate 100, the orthographic projection of the light-emitting area 101 of each sub-pixel 10 in the first part of the sub-pixels 11 on the substrate 100 falls into the orthographic projection of the second main body 321 on the substrate 100, and the light-emitting area 101 of each sub-pixel 10 in the second part of the sub-pixels 12 does not overlap with the second main body 321.

[0071] For example, Figure 8 As shown, the orthographic projection of the light emitting area 101 of each sub-pixel 10 in the second part of the sub-pixels 12 on the base substrate 100 falls into the orthographic projection of the first main body 311 on the base substrate 100. That is, when the light emitting area 101 of each sub-pixel 10 in the second part of the sub-pixels 12 does not overlap with the second main body 321, the light emitting area 101 of each sub-pixel 10 in the second part of the sub-pixels 12 also overlaps with the first main body 311.

[0072] Thus, the flatness of the first electrode of the second part of the sub-pixel can be improved through the first main body to reduce the flatness difference between the first electrode of the second part of the sub-pixel and the first electrode of the first part of the sub-pixel, which is beneficial to reduce the risk of color deviation and color separation and make the overall display effect of the display panel uniform and good.

[0073] For example, Figure 6 and Figure 8 As shown, the orthographic projection of the light-emitting area 101 of each sub-pixel 10 in the first part of the sub-pixels 11 on the substrate 100 also falls into the orthographic projection of the first main body 311 on the substrate 100. In other words, the light-emitting area 101 of the first part of the sub-pixels 11 falls into the orthographic projection of the second main body 321 on the substrate 100, and also falls into the orthographic projection of the first main body 311 on the substrate 100. In this way, the first electrode 110 of the first part of the sub-pixels 11 can have good flatness, and the risk of color deviation and color separation can be effectively reduced.

[0074] In some embodiments of the present disclosure, a plurality of sub-pixels in the display panel may overlap with one of the first main body and the second main body, respectively. For example, the orthographic projection of the light-emitting area of ​​a portion of the sub-pixels on the substrate falls within the orthographic projection of the first main body on the substrate, and the orthographic projection of the light-emitting area of ​​another portion of the sub-pixels on the substrate falls within the orthographic projection of the second main body on the substrate. Thus, the flatness of the first electrode of the corresponding sub-pixel can be improved by the first main body and the second main body, respectively.

[0075] Fig. 9Another schematic diagram of stacking a first metal pattern and a second metal pattern provided for at least one embodiment of the present disclosure.

[0076] For example, Figure 8 As shown, the plurality of sub-pixels 10 include a first group of sub-pixels 1100 and a second group of sub-pixels 1200, and the first group of sub-pixels 1100 and the second group of sub-pixels 1200 each include at least one color sub-pixel 10. For example, the sub-pixels 10 in the first group of sub-pixels 1100 and the sub-pixels 10 in the second group of sub-pixels 1200 have different luminous colors. For example, the luminous region 101 of each sub-pixel 10 in the first group of sub-pixels 1100 overlaps with both the first main body 311 and the second main body 321, and the luminous region 101 of each sub-pixel 10 in the second group of sub-pixels 1200 overlaps with one of the first main body 311 and the second main body 321. In some embodiments, the first group of sub-pixels 1100 may be the first part of the sub-pixels 11 described in the above embodiment, and the second group of sub-pixels 1200 may be the second part of the sub-pixels 12 described in the above embodiment, but the embodiments of the present disclosure are not limited thereto.

[0077] With such a configuration, the flatness of the first electrodes of the sub-pixels of different colors can be balanced, so that the light emitting effects of the sub-pixels of different colors are more uniform.

[0078] For example, Figure 8 As shown, the first group of sub-pixels 1100 includes red sub-pixels R and blue sub-pixels B, and the second group of sub-pixels 1200 includes green sub-pixels G, so that the first electrodes of the red sub-pixels R and the blue sub-pixels B can have good flatness and have a good light extraction effect.

[0079] For example, with Figure 8 Compared to the display panel shown, Fig. 9 In the display panel shown, the position of the second metal pattern 320 relative to the first metal pattern 310 is different, and the remaining structures are the same, which will not be described in detail here.

[0080] For example, Fig. 9 As shown, the first group of sub-pixels 1100 includes green sub-pixels G, and the second group of sub-pixels 1200 includes red sub-pixels R and blue sub-pixels B, so that the first electrode of the green sub-pixel G can have good flatness and have a good light extraction effect.

[0081] It should be noted that the embodiments of the present disclosure do not limit the luminous colors of the first group of sub-pixels and the second group of sub-pixels, and they can be set specifically according to design requirements.

[0082] For example, Figure 7As shown, the first metal pattern 310 further includes a plurality of connecting portions 305, and a first main portion 311 is connected to another first main portion 311 through the connecting portions 305. The orthographic projection of the connecting portion 305 on the base substrate is in a strip shape, and the orthographic projection of the connecting portion 305 on the base substrate does not overlap with the light-emitting area 101 of the sub-pixel 10. For example, the connecting portion 305 and the first main portion 311 are made of the same material and are formed by the same process.

[0083] For example, Figure 7 As shown, a plurality of first main body portions 311 are arranged in an array along a first direction V and a second direction U to form a plurality of first main body portion rows 3110 arranged along the first direction V and a plurality of first main body portion columns 3120 arranged along the second direction U. The first direction V and the second direction U are both parallel to the substrate, and the first direction V intersects the second direction U, for example, the first direction V is perpendicular to the second direction U.

[0084] For example, Figure 7 As shown, the connection portion 305 extends along the first direction V or the second direction U. Adjacent first body portions 311 in the first body portion row 3110 are connected by the connection portion 305, and adjacent first body portions 311 in the first body portion column 3120 are connected by the connection portion 305. For example, at least one first body portion 311 is connected to four first body portions 311 around it, and the first body portion 311 is surrounded by eight first body portions 311. For example, one first body portion 311 is connected to at most four first body portions 311.

[0085] For example, Figure 6 and Figure 7 Also shown are a plurality of limiting openings NS located in the pixel limiting pattern, so that the display panel has a transmittance that meets the requirements, so as to facilitate the normal operation of the under-screen sensor and fingerprint sensor set under the screen. For the specific structure of the limiting opening NS, please refer to the relevant description of the following embodiment. For example, the minimum distance between the orthographic projection of the limiting opening NS on the base substrate 100 and the orthographic projection of the first main body 311 on the base substrate 100 is 1.5 to 10 microns, such as at least one of 1.5 to 2.0 microns, 2.5 to 3.0 microns, 4.0 to 6.0 microns, 8.0 to 9.5 microns, or other values ​​within the range of 1.5 to 10 microns, which is not limited in the embodiments of the present disclosure.

[0086] Such an arrangement can reduce the impact of process fluctuations on the defined opening, reduce the risk of the first main body being exposed, and help reserve sufficient arrangement space for the defined opening, thereby facilitating enhancement of the transmittance of the display panel.

[0087] For example, Figure 7As shown, the first metal pattern 310 is an integrated mesh structure, which can simplify the manufacturing process of the first metal pattern 310 and improve the signal uniformity in the first metal pattern 310 to reduce the load of the first metal pattern 310.

[0088] For example, Figure 7 As shown, the orthographic projection of the light emitting area 101 of each sub-pixel 10 in the plurality of sub-pixels 10 on the substrate falls within the orthographic projection of the first main body 311 on the substrate. For example, the plurality of sub-pixels 10 may be all sub-pixels 10 in the display panel.

[0089] Such a configuration can improve the overall flatness of the first electrodes of the sub-pixels in the display panel, so that the light emission angles of the multiple sub-pixels in the display panel are more uniform, thereby facilitating ensuring a good light emission effect.

[0090] Fig.10 A schematic diagram of another first metal pattern provided for at least one embodiment of the present disclosure.

[0091] For example, Fig.10 The first metal pattern shown is Figure 7 The difference of the first metal pattern shown is that the connection portion is arranged differently, and the rest of the structures are the same, and the similarities will not be repeated.

[0092] For example, Fig.10 As shown, the connection portion 305 extends along the first arrangement direction M or the second arrangement direction N. The first main body portion 311 is connected to the first main body portion 311 adjacent to the first arrangement direction M or the second arrangement direction N. For example, two adjacent rows of first main body portions 311 in the second arrangement direction N are staggered, and two adjacent columns of first main body portions 311 in the first arrangement direction M are staggered. For example, one first main body portion 311 is connected to at most two first main body portions 311. For example, a connection portion 305 extending along the first arrangement direction M is arranged crosswise with another connection portion 305 extending along the second arrangement direction N.

[0093] Such an arrangement is beneficial to increasing the arrangement density of the connection parts, thereby facilitating reducing the load of the first metal pattern.

[0094] In some embodiments, in order to further reduce the load of the first metal pattern, the number of connecting parts can be increased. For example, connecting parts can be set between adjacent first main body parts in the first main body row, and connecting parts can be set between adjacent first main body parts in the first main body column. The embodiments of the present disclosure do not limit the arrangement method and number of the connecting parts. For example, the extension direction of the connecting part can be non-linear, for example, it can not extend along the first arrangement direction, the second arrangement direction, the first direction or the second direction. The embodiments of the present disclosure do not limit the extension direction of the connecting part.

[0095] Fig.11 A schematic diagram of another stacking of a first metal pattern and a second metal pattern provided for at least one embodiment of the present disclosure; Fig.12 A schematic diagram of another stacking of a first metal pattern and a second metal pattern provided for at least one embodiment of the present disclosure.

[0096] For example, Fig.10 and Fig.11 As shown, the first group of sub-pixels 1100 includes a green sub-pixel G, and the second group of sub-pixels 1200 includes a red sub-pixel R and a blue sub-pixel B. Two connecting portions 305 are provided between two adjacent green sub-pixels G in the second arrangement direction N, and the two connecting portions 305 are arranged to cross each other. For example, the pixel defining pattern includes a plurality of defining openings NS, and the defining openings NS are located between adjacent green sub-pixels G in the first arrangement direction M.

[0097] Such a configuration can help increase the width of the connecting portion (ie, the dimension in a direction perpendicular to the extending direction of the connecting portion) while ensuring that the first electrode of the first group of sub-pixels has good flatness, thereby helping to reduce the resistance of the first metal pattern.

[0098] For example, Fig.10 and Fig.12 As shown, the first group of sub-pixels 1100 includes a red sub-pixel R and a blue sub-pixel B, and the second group of sub-pixels 1200 includes a green sub-pixel G. Two connecting portions 305 are provided between two adjacent second main portions 321 in the first arrangement direction M, and the two connecting portions 305 are arranged to cross each other. For example, the pixel defining pattern includes a plurality of defining openings NS, and in the second arrangement direction N, there is one defining opening NS between adjacent sub-pixels in the second group of sub-pixels 1200.

[0099] Such an arrangement can ensure that the first electrodes of the second group of sub-pixels have good flatness while also facilitating increasing the width of the connecting portion (ie, the dimension in a direction perpendicular to the extension direction), thereby facilitating reducing the resistance of the first metal pattern.

[0100] Fig.13A partial plan view of a display panel provided for at least one embodiment of the present disclosure; Fig.14 Another partial schematic plan view of a display panel provided for at least one embodiment of the present disclosure.

[0101] For example, Fig.13 As shown, the second metal pattern 320 includes a data line DATA and a power signal line VDD. The structure of the first metal pattern 310 is as shown in FIG. Figure 7 As shown, the orthographic projection of the light-emitting area 010 of the sub-pixel on the substrate completely falls into the orthographic projection of the first main body 311 on the substrate. For example, at least 50% of the orthographic projection of the connecting portion 305 on the substrate falls into the orthographic projection of the second metal pattern 320 on the substrate. For example, at least part of the orthographic projection of the connecting portion 305 on the substrate completely falls into the orthographic projection of the second metal pattern 320 on the substrate. For example, at least 70% of the orthographic projection of the first main body 311 on the substrate falls into the orthographic projection of the second metal pattern 320 on the substrate. For example, at least part of the orthographic projection of the first main body 311 on the substrate completely falls into the orthographic projection of the second metal pattern 320 on the substrate. For example, the orthographic projection area of ​​the first main body 311 on the substrate is smaller than the orthographic projection area of ​​the second main body 321 on the substrate.

[0102] Such an arrangement can improve the flatness of the first electrode of the sub-pixel through the first metal pattern and at the same time help reduce the layout space occupied by the first metal pattern, so that the layout distribution is more reasonable.

[0103] For example, Fig.14 As shown, the second metal pattern 320 includes a plurality of metal structures, such as a data line DATA, a power signal line VDD, and a connection block BLO located at a side of the light-emitting area 010 of the sub-pixel close to the first metal pattern 310, etc. The metal structures in the second metal pattern 320 are asymmetrically distributed relative to the light-emitting area 010 of the sub-pixel. The first metal pattern 310 is located between the second metal pattern 320 and the first electrode of the sub-pixel (see Figure 6 ), and the orthographic projection of the light-emitting area 010 of the sub-pixel on the base substrate completely falls into the orthographic projection of the first main body 311 on the base substrate, so that the first electrode of the sub-pixel has good flatness and effectively reduces the risk of color deviation and color separation.

[0104] Fig.15 A partial cross-sectional schematic diagram of another display panel provided for at least one embodiment of the present disclosure.

[0105] For example, Fig.15As shown, the display panel includes a first metal pattern 310, a second metal pattern 320 and a third metal pattern 330, and the third metal pattern 330 is located between the second metal pattern 320 and the base substrate 100. For the structures of the first metal pattern 310 and the second metal pattern 320, please refer to the relevant description of the above embodiment, and the details are not repeated here. For example, the first electrode 110 of the sub-pixel 10 is connected to the first main body 311 in the first metal pattern 310 through the first via hole N01, and the first main body 311 in the first metal pattern 310 is connected to the second main body 321 in the second metal pattern 320 through the second via hole N02.

[0106] For example, Fig.15 As shown, the display panel includes a pixel driving circuit 400, at least part of which is located between the first electrode 110 and the base substrate 100, and is configured to drive the light-emitting functional layer 130 of the sub-pixel 10 to emit light. For example, the pixel driving circuit 400 includes a thin film transistor, and the third metal pattern 330 includes a conductive structure 331 and a conductive structure 332. For example, the conductive structure 331 serves as a drain of the thin film transistor, and the conductive structure 332 serves as a source of the thin film transistor. The gate GATE of the thin film transistor is located on a side of the third metal pattern 330 close to the base substrate 100, and the semiconductor structure POLE of the thin film transistor is located between the gate GATE and the base substrate 100. For example, the second main body 321 in the second metal pattern 320 is connected to the conductive structure 331 through a third via N03. For example, the display panel also includes a first gate insulating layer S1 and a second gate insulating layer S2 located between the third metal pattern 330 and the base substrate 100, but is not limited thereto. For example, the display panel may also include Fig.15 The other film layers not shown are not limited in the embodiments of the present disclosure.

[0107] For example, Fig.15 As shown, the display panel further includes a light shielding layer 500. The light shielding layer 500 is located on a side of the second electrode 120 away from the base substrate 100, and the light shielding layer 500 includes a plurality of first openings 510 and a plurality of second openings 520. The pixel defining pattern 200 includes a plurality of defining openings NS, and the defining openings NS are spaced apart from the pixel openings 201. For example, the orthographic projection of the first opening 510 on the base substrate 100 at least partially overlaps with the orthographic projection of the pixel opening 201 on the base substrate 100, the orthographic projection of the defining opening NS on the base substrate 100 at least partially overlaps with the orthographic projection of the second opening 520 on the base substrate 100, and there is a gap between the orthographic projection of the defining opening NS on the base substrate 100 and the orthographic projection of at least part of the pixel driving circuit 400 on the base substrate 100.

[0108] For example, Fig.15As shown, a sensor, for example, an ambient light sensor, an infrared distance sensor, or a fingerprint sensor, may be provided on the non-display side of the display panel (i.e., the side of the substrate 100 away from the pixel driving circuit 400). Since the transmittance of the light-shielding layer 500 is almost zero, ambient light (such as visible light or light in the infrared band) can be incident from the second opening 520 of the light-shielding layer 500 and then reach the sensor through the limited opening NS, so that the sensor can work normally.

[0109] For example, Fig.15 As shown, the display panel further includes a color filter layer 600 located on the side of the light shielding layer 500 away from the base substrate 100, and the color filter layer 600 includes a plurality of color filter portions 610, and the orthographic projection of the light emitting area 101 of the sub-pixel 10 on the base substrate 100 falls into the orthographic projection of the color filter portion 610 on the base substrate 100. For example, the color of the color filter portion 610 is the same as the light emitting color of the corresponding sub-pixel 10. For example, the color filter portion 610 can enhance the color intensity of the light. For example, the display panel may further include a cover plate and other structures located on the light emitting side of the display panel, which is not limited in the embodiments of the present disclosure.

[0110] For example, Fig.15 As shown, the orthographic projection of the opening NS on the base substrate 100 is limited to have no overlap with the orthographic projection of the color filter portion 610 on the base substrate 100 , thereby facilitating the reduction of the color filter portion 610 blocking the incidence of ambient light, thereby enhancing the transmittance of the display panel.

[0111] Fig.16 A schematic diagram of a pixel circuit is provided for at least one embodiment of the present disclosure.

[0112] For example, Fig.16 As shown, the pixel driving circuit 400 includes a first reset control transistor T1, a threshold compensation transistor T2, a driving transistor T3, a data writing transistor T4, a first light emission control transistor T5, a second light emission control transistor T6, a second reset control transistor T7 and a storage capacitor C.

[0113] For example, the display panel further includes a reset power signal line, a scan signal line, a power signal line, a reset control signal line, a light emission control signal line, and a data line.

[0114] For example, Fig.16As shown, the first electrode of the threshold compensation transistor T2 is electrically connected to the first electrode of the driving transistor T3, the second electrode of the threshold compensation transistor T2 is electrically connected to the gate of the driving transistor T3, and the gate of the threshold compensation transistor T2 is electrically connected to the scanning signal line to receive the compensation control signal; the first electrode of the data writing transistor T4 is electrically connected to the second electrode of the driving transistor T3, the second electrode of the data writing transistor T4 is electrically connected to the data line to receive the data signal Data, and the gate of the data writing transistor T4 is electrically connected to the scanning signal line to receive the scanning signal Gate; the first electrode of the storage capacitor C is electrically connected to the power signal line, and the second electrode of the storage capacitor C is electrically connected to the gate of the driving transistor T3; the first electrode of the first reset control transistor T1 is electrically connected to the reset power signal line to receive the reset signal Vinit1, the second electrode of the first reset control transistor T1 is electrically connected to the gate of the driving transistor T3, and the gate of the first reset control transistor T1 is electrically connected to the reset control signal line to receive the reset control signal Reset(N); the second reset The first electrode of the control transistor T7 is electrically connected to the reset power signal line to receive the reset signal Vinit2, the second electrode of the second reset control transistor T7 is electrically connected to the first electrode of the light emitting element 100 (i.e., the N4 node), and the gate of the second reset control transistor T7 is electrically connected to the reset control signal line to receive the reset control signal Reset(N+1); the first electrode of the first light emitting control transistor T5 is electrically connected to the power signal line to receive the power signal VDD, the second electrode of the first light emitting control transistor T5 is electrically connected to the second electrode of the driving transistor T3, and the gate of the first light emitting control transistor T5 is electrically connected to the light emitting control signal line to receive the light emitting control signal EM; the first electrode of the second light emitting control transistor T6 is electrically connected to the first electrode of the driving transistor T3, the second electrode of the second light emitting control transistor T6 is electrically connected to the first electrode of the light emitting element 100, and the gate of the second light emitting control transistor T6 is electrically connected to the light emitting control signal line to receive the light emitting control signal EM; the second electrode of the light emitting element 100 is connected to the voltage terminal VSS. The above-mentioned power signal line refers to a signal line that outputs the voltage signal VDD, and can be connected to a voltage source to output a constant voltage signal, such as a positive voltage signal.

[0115] For example, Fig.16As shown, the scanning signal and the compensation control signal can be the same, that is, the gate of the data writing transistor T3 and the gate of the threshold compensation transistor T2 can be electrically connected to the same signal line to receive the same signal, thereby reducing the number of signal lines. For example, the gate of the data writing transistor T3 and the gate of the threshold compensation transistor T2 can also be electrically connected to different signal lines, that is, the gate of the data writing transistor T3 is electrically connected to the first scanning signal line, and the gate of the threshold compensation transistor T2 is electrically connected to the second scanning signal line, and the signals transmitted by the first scanning signal line and the second scanning signal line can be the same or different, so that the gate of the data writing transistor T3 and the threshold compensation transistor T2 can be separately controlled, thereby increasing the flexibility of controlling the pixel driving circuit 200.

[0116] For example, the light control signals input to the first light control transistor T5 and the second light control transistor T6 may be the same, that is, the gate of the first light control transistor T5 and the gate of the second light control transistor T6 may be electrically connected to the same signal line to receive the same signal, thereby reducing the number of signal lines. For example, the gate of the first light control transistor T5 and the gate of the second light control transistor T6 may also be electrically connected to different light control signal lines, respectively, and the signals transmitted by different light control signal lines may be the same or different.

[0117] For example, the reset control signals input to the first reset control transistor T1 and the second reset control transistor T7 may be the same, that is, the gate of the first reset control transistor T1 and the gate of the second reset control transistor T7 may be electrically connected to the same signal line to receive the same signal, thereby reducing the number of signal lines. For example, the gate of the first reset control transistor T1 and the gate of the second reset control transistor T7 may also be electrically connected to different reset control signal lines, respectively, in which case the signals on different reset control signal lines may be the same or different.

[0118] For example, Fig.16 As shown, when the display panel is working, in the first stage of picture display, the first reset control transistor T1 is turned on to initialize the voltage of the N1 node; in the second stage of picture display, data is stored in the N1 node through the data writing transistor T4, the driving transistor T3 and the threshold compensation transistor T2; in the third light-emitting stage, the first light-emitting control transistor T5, the driving transistor T3 and the second light-emitting control transistor T6 are all turned on, and the light-emitting element 100 is forward-conducted to emit light.

[0119] It should be noted that, in the embodiment of the present disclosure, each pixel driving circuit can Fig.16In addition to the 7T1C structure (i.e., seven transistors and one capacitor) shown in the figure, a structure including other numbers of transistors may also be used, such as a 7T2C structure, a 6T1C structure, a 6T2C structure, or a 9T2C structure, which is not limited in the embodiments of the present disclosure. The equivalent diagram of the pixel driving circuit in the display panel shown in the above embodiment may be the same as Fig.16 The equivalent diagram of the pixel driving circuit 400 is shown to be the same.

[0120] At least one embodiment of the present disclosure further provides a display device, which includes a display panel provided by an embodiment of the present disclosure (for example, the display panel described in the above embodiment). Therefore, the technical effects of the above display panel can also be embodied on the display device, which will not be described in detail here.

[0121] For example, the display device may be a display device such as an organic light emitting diode display device, as well as any product or component with a display function, such as a television, digital camera, mobile phone, watch, tablet computer, laptop computer, navigator, etc., which includes the display device, but the present embodiment is not limited thereto.

[0122] There are a few points to note:

[0123] (1) In the drawings of the embodiments of the present disclosure, only the structures related to the embodiments of the present disclosure are involved, and other structures can refer to the general design.

[0124] (2) In the absence of conflict, features in the same embodiment or in different embodiments of the present disclosure may be combined with each other.

[0125] The above description is merely an exemplary embodiment of the present disclosure and is not intended to limit the protection scope of the present disclosure. The protection scope of the present disclosure is determined by the appended claims.

Claims

1. A display panel, comprising: substrate substrate; A plurality of sub-pixels are located on the substrate, the sub-pixels include a light-emitting functional layer, and a first electrode and a second electrode located on both sides of the light-emitting functional layer in a direction perpendicular to the substrate, the first electrode being located between at least a portion of the light-emitting functional layer and the substrate; a pixel defining pattern, at least a portion of which is located between the light-emitting functional layer and the first electrode, the pixel defining pattern comprising a plurality of pixel openings and a pixel defining portion located between adjacent pixel openings, the pixel openings exposing at least a portion of the first electrode to define a light-emitting area of ​​the sub-pixel; A first metal pattern, located between the first electrode of the sub-pixel and the base substrate; a second metal pattern, located between the first metal pattern and the base substrate, wherein the light emitting areas of at least part of the sub-pixels overlap with the second metal pattern in a direction perpendicular to the base substrate, Among them, the first metal pattern includes multiple first main parts, at least some of the first main parts are connected to each other, and in the direction perpendicular to the base substrate, the orthographic projection of the light-emitting area of ​​at least one sub-pixel on the base substrate falls into the orthographic projection of the first main part on the base substrate.

2. The display panel according to claim 1, wherein: The second metal pattern includes a plurality of second main body portions, at least some of the second main body portions are connected to each other, the at least some of the sub-pixels include a first part of the sub-pixels and a second part of the sub-pixels, In a direction perpendicular to the base substrate, the orthographic projection of the light-emitting area of ​​each sub-pixel in the first part of the sub-pixels on the base substrate falls into the orthographic projection of the second main body on the base substrate, and the light-emitting area of ​​each sub-pixel in the second part of the sub-pixels does not overlap with the second main body.

3. The display panel according to claim 1 or 2, wherein: The orthographic projection of the light emitting area of ​​each sub-pixel in the second part of sub-pixels on the base substrate falls into the orthographic projection of the first main part on the base substrate.

4. The display panel according to any one of claims 1 to 3, wherein: The orthographic projection of the light emitting area of ​​each sub-pixel in the first part of sub-pixels on the base substrate falls into the orthographic projection of the first main part on the base substrate.

5. The display panel according to claim 2, wherein: The plurality of sub-pixels include a first group of sub-pixels and a second group of sub-pixels, wherein the first group of sub-pixels and the second group of sub-pixels each include at least one color sub-pixel, The light emitting area of ​​each sub-pixel in the first group of sub-pixels overlaps with both the first main body portion and the second main body portion, and the light emitting area of ​​each sub-pixel in the second group of sub-pixels overlaps with one of the first main body portion and the second main body portion.

6. The display panel according to claim 5, wherein: The first group of sub-pixels includes red sub-pixels and blue sub-pixels, and the second group of sub-pixels includes green sub-pixels; or The first group of sub-pixels includes green sub-pixels, and the second group of sub-pixels includes red sub-pixels and blue sub-pixels.

7. The display panel according to any one of claims 1 to 6, wherein: The first metal pattern also includes a plurality of connecting parts, the first main part is connected to another first main part through the connecting parts, the orthographic projection of the connecting part on the base substrate is in a strip shape, and the orthographic projection of the connecting part on the base substrate does not overlap with the light-emitting area of ​​the sub-pixel.

8. The display panel according to claim 7, wherein: The plurality of first main body portions are arranged in an array along a first direction and a second direction to form a plurality of first main body portion rows arranged along the first direction and a plurality of first main body portion columns arranged along the second direction. The first direction and the second direction are both parallel to the base substrate, and the first direction intersects with the second direction.

9. The display panel according to claim 8, wherein: The connecting portion extends along the first direction or the second direction, adjacent first main body portions in a first main body portion row are connected by the connecting portion, and adjacent first main body portions in a first main body portion column are connected by the connecting portion.

10. The display panel according to claim 8, wherein: The connecting portion extends along the first arrangement direction or the second arrangement direction, and the first main body portion is connected to the first main body portion adjacent to the first arrangement direction or the second arrangement direction. The first arrangement direction and the second arrangement direction are both parallel to the base substrate, and the first arrangement direction intersects with the second arrangement direction. The first arrangement direction and the second arrangement direction both intersect with the first direction and intersect with the second direction.

11. The display panel according to any one of claims 1 to 10, wherein: The first metal pattern is an integrated mesh structure.

12. The display panel according to any one of claims 1 to 11, wherein: An orthographic projection shape of the first main body portion on the base substrate is different from an orthographic projection shape of the second main body portion on the base substrate.

13. The display panel according to any one of claims 1 to 12, wherein: The orthographic projection shape of the light emitting area of ​​the at least one sub-pixel on the base substrate is the same as the orthographic projection shape of the first main body on the base substrate.

14. The display panel according to any one of claims 1 to 13, wherein: The orthographic projection of the light emitting area of ​​each sub-pixel of the plurality of sub-pixels on the base substrate falls within the orthographic projection of the first main body on the base substrate.

15. The display panel according to any one of claims 1 to 14, wherein: The first metal pattern is configured to transmit a first signal, and the second metal pattern is configured to transmit a second signal, and the first signal is different from the second signal.

16. The display panel according to claim 10, wherein: The second metal pattern includes a plurality of signal lines overlapping the first main body, and the signal lines extend along the second arrangement direction. A surface of the first main body away from the base substrate is flat.

17. The display panel according to any one of claims 1 to 16, further comprising: a light shielding layer, the light shielding layer being located on a side of the second electrode away from the base substrate, the light shielding layer comprising a plurality of first openings and a plurality of second openings, the orthographic projections of the first openings on the base substrate at least partially overlapping with the orthographic projections of the pixel openings on the base substrate, A color filter layer is located on a side of the light shielding layer away from the base substrate, the color filter layer includes a plurality of color filter parts, and the orthographic projection of the light emitting area of ​​the sub-pixel on the base substrate falls within the orthographic projection of the color filter part on the base substrate; The sub-pixel further includes a pixel driving circuit, at least part of which is located between the first electrode and the base substrate and is configured to drive the light-emitting functional layer of the sub-pixel to emit light. The pixel defining pattern also includes a plurality of defining openings, wherein the defining openings are spaced apart from the pixel openings, an orthographic projection of the defining opening on the substrate substrate at least partially overlaps with an orthographic projection of the second opening on the substrate substrate, and there is a spacing between the orthographic projection of the defining opening on the substrate substrate and an orthographic projection of at least part of the pixel driving circuit on the substrate substrate, and the orthographic projection of the defining opening on the substrate substrate does not overlap with an orthographic projection of the color filter portion on the substrate substrate.

18. The display panel according to claim 17, wherein: The minimum distance between the orthographic projection of the defined opening on the base substrate and the orthographic projection of the first main body on the base substrate is 1.5 to 10 micrometers.

19. A display device comprising the display panel according to any one of claims 1 to 18.

Images