Display substrates, display panel and display screen assembly

Abstract

Display substrates (10, 20), a display panel (11) and a display screen assembly (1). One of the display substrates (10, 20) has several pixel anodes (1011, 2011) and a power supply wire (1012, 2012) distributed thereon, wherein the power supply wire (1012, 2012) is provided with first openings (10121); the pixel anodes (1011, 2011) are disposed on the first openings (10121) in the length direction of the power supply wire (1012, 2012); the diameters of the first openings (10121) in the width direction of the pixel anodes (1011, 2011) are less than the widths of the pixel anodes (1011, 2011) such that the pixel anodes (1011, 2011) cross the first openings (10121) to connect to the power supply wire (1012, 2012); and the first openings (10121) can transmit light. The other of the display substrates (10, 20) has several pixel anodes (1011, 2011) and a power supply wire (1012, 2012) distributed thereon, wherein the power supply wire (1012, 2012) is provided with U-shaped grooves; the pixel anodes (1011, 2011) are disposed on the U-shaped grooves and are in contact with the power supply wire (1012, 2012) in the U-shaped grooves; the pixel anodes (1011, 2011) are located in the middles of the U-shaped grooves; and the U-shaped grooves can transmit light. By means of optimizing the stress on the pixel anodes (1011, 2011), the flatness of the pixel anodes (1011, 2011) is improved, thereby reducing the degree of color cast at a large angle of view.

Description

Display substrate, display panel and display screen assembly Technical Field

[0001] The present application relates to the field of electronic circuit technology, and in particular to a display substrate, a display panel, and a display screen assembly. Background Art

[0002] With the widespread adoption of full-screen technology, under-screen fingerprint recognition has become a common unlocking method in high-end electronic products. To achieve this and other similar features, we must pay attention to the screen's light transmittance. To ensure light can pass through the screen, opening holes in the wires will result in uneven support for the pixel anodes. Parts of the pixel anode, without large areas of support, collapse into the paper. Summary of the Invention

[0003] In view of this, the present application provides a display substrate, a display panel, and a display screen assembly.

[0004] Specifically, this application is implemented through the following technical solutions:

[0005] In a first aspect of the present application, a display substrate is provided, on which a plurality of pixel anodes and power supply wires are arranged; the power supply wire is provided with a first opening, and the pixel anode is arranged on the first opening along the length direction of the power supply wire, and the diameter of the first opening along the width direction of the pixel anode is smaller than the width of the pixel anode, so that the pixel anode is connected to the power supply wire across the first opening, and the first opening can pass light.

[0006] In a second aspect of the present application, a display panel is provided, which includes the display substrate provided in the first aspect of the present application.

[0007] In a third aspect of the present application, a display screen assembly is provided. The display screen assembly includes the display panel provided in the second aspect of the present application and an under-screen optical sensor device, and the under-screen sensor device is used to receive light passing through the display panel.

[0008] In a fourth aspect of the present application, another display substrate is provided, which is arranged with a plurality of pixel anodes and power supply wires; the power supply wire is provided with a U-shaped groove, the pixel anode is arranged on the U-shaped groove, contacts the power supply wire of the U-shaped groove, and the pixel anode is located in the middle of the U-shaped groove, and the U-shaped groove can transmit light.

[0009] In a fifth aspect of the present application, a display panel is provided, which includes the display substrate provided in the fourth aspect of the present application.

[0010] In the sixth aspect of the present application, a display screen assembly is provided, which includes the display panel provided in the fifth aspect of the present application and an under-screen optical sensor device, wherein the under-screen sensor device is used to receive light passing through the display panel.

[0011] Through the above solution, this application has at least the following beneficial effects:

[0012] By changing the force-bearing area and position of the pixel anode, the force condition of the pixel anode is optimized, the deformation of the pixel anode is reduced, the flatness is improved, and the color cast problem is alleviated. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] FIG. 1 is a schematic diagram of a display substrate with slots in power supply conductors according to an exemplary embodiment of the present application.

[0014] FIG. 2 is a schematic diagram of a display substrate according to an exemplary embodiment of the present application.

[0015] FIG. 3 is a schematic diagram of a display substrate including data wires according to an exemplary embodiment of the present application.

[0016] FIG4 a is a schematic diagram of a power supply conductor with a second opening according to an exemplary embodiment of the present application.

[0017] FIG4 b is a schematic diagram of a power supply conductor with a U-shaped groove according to an exemplary embodiment of the present application.

[0018] FIG5 is a schematic diagram of various auxiliary power supply wires according to an exemplary embodiment of the present application.

[0019] FIG6 is a schematic diagram showing the arrangement of auxiliary power supply wires and data wires according to an exemplary embodiment of the present application.

[0020] FIG. 7 a is a schematic diagram showing pixel anodes of different sizes on the same power supply wire according to an exemplary embodiment of the present application.

[0021] FIG7 b is a schematic diagram showing pixel anodes of different sizes on different power supply wires according to an exemplary embodiment of the present application.

[0022] FIG. 8 is a schematic diagram of pixel anodes of pixels of different colors according to an exemplary embodiment of the present application.

[0023] FIG. 9 is a schematic diagram of a display panel according to an exemplary embodiment of the present application.

[0024] FIG. 10 is a schematic diagram of a display screen assembly according to an exemplary embodiment of the present application.

[0025] FIG. 11 is a schematic diagram of another display substrate according to an exemplary embodiment of the present application.

[0026] FIG12 is a schematic diagram of a power supply conductor including an auxiliary power supply conductor according to an exemplary embodiment of the present application.

[0027] FIG. 13 is a schematic diagram of another display panel according to an exemplary embodiment of the present application.

[0028] FIG14 is a schematic diagram of another display screen assembly according to an exemplary embodiment of the present application.

[0029] FIG. 15 is a schematic diagram showing a pixel anode combination for displaying pixels of different colors according to an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0030] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0031] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. As used in this application and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0032] It should be understood that although the terms first, second, third, etc. may be used in this application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0033] When fingerprint recognition is needed, there are multiple unlocking methods, such as fingerprint unlocking integrated with the HOME button, side fingerprint unlocking, and back fingerprint. With the popularization of full-screen phones, under-screen fingerprint recognition has become a commonly used unlocking method in high-end electronic devices.

[0034] In order to realize the functions of this scenario and similar scenarios, the problem of screen transmittance needs to be considered. As shown in Figure 1, the hollowing out of the wires for light transmission makes the wires' support for the pixel anode uneven. Taking Figure 1 as an example, the upper part of the pixel anode collapses into the paper due to the large area of ​​no support (as shown in section AA), resulting in poor flatness of the entire pixel anode, and then making the light-emitting element corresponding to the pixel anode emit uneven light, which manifests as severe color deviation of the display screen at a wide viewing angle.

[0035] To alleviate this undesirable phenomenon, referring to FIG2 , the present application proposes a display substrate 10 , which is arranged with a plurality of pixel anodes 1011 and power supply wires 1012 . The power supply wires 1012 are provided with first openings 10121 . The pixel anodes 1011 are arranged on the first openings 10121 along the length of the power supply wires 1012 . The diameter of the first openings 10121 along the width of the pixel anodes 1011 is smaller than the width of the pixel anodes 1011 , so that the pixel anodes 1011 connect to the power supply wires 1012 across the first openings 10121 , and the first openings 10121 are able to transmit light. The support effect is shown in section BB.

[0036] It can be understood that, referring to FIG. 2 , the length direction can be the direction in which different pixel anodes are arranged on the same power supply wire, and the width direction can be understood as the direction perpendicular to the length direction.

[0037] With the above solution, a first opening is provided on the power supply conductor, and a slightly wider pixel anode is connected to the power supply conductor across the first opening. This ensures that the pixel anode across the first opening is subjected to uniform or nearly uniform force across its width. This optimized force distribution improves the flatness of the pixel anode, while also alleviating the problem of color shift at large viewing angles in the display panel caused by this flatness.

[0038] It should be understood that the shape of the first opening in FIG2 is merely exemplary and can be of any shape. In this application, any shape can be used as long as the first opening can support the pixel anode on both sides of the width direction of the power supply conductor and make the pixel anode flat. For example, the first opening can be rectangular, circular, elliptical, irregular polygonal, regular polygonal, or curved.

[0039] In the present application, the power supply wire may be a metal material, a semiconductor material, a conductive polymer, a carbon material or any other conductive material.

[0040] In one embodiment of the present application, a metal material with minimal thermal deformation can be used to ensure high electrical conductivity in high-temperature environments. This choice helps reduce the impact of heat on the shape of the power supply wire, thereby ensuring that the thickness of the power supply wire changes little during different operating hours. The advantages of this design are mainly reflected in the following aspects:

[0041] Choosing metal materials with higher conductivity, such as copper or aluminum, helps ensure rapid transmission of current in the wires, improves conductivity efficiency, and reduces energy consumption.

[0042] The use of metal materials with less thermal deformation can maintain better shape stability in high temperature environments, reduce shape changes caused by thermal expansion, and help maintain the flatness of the power supply conductors.

[0043] As a key component supporting the pixel anode, the stability of the power supply conductor's shape directly impacts the quality of the display. By using a metal material with minimal thermal deformation, the conductor's shape remains relatively stable over time, providing more uniform support.

[0044] Metal materials generally have good high-temperature resistance, which is particularly important for some high-performance, high-load application scenarios, ensuring that the power supply wires remain stable and reliable under long-term high-load operation.

[0045] Choosing common metal materials can help control manufacturing costs while providing good electrical conductivity and thermal stability, making this solution more feasible in practical applications.

[0046] 3 , the display substrate 10 may further be provided with data conductors 1021, which are located on different layers of the display substrate from the power conductors 1011 and overlap with each other. The support effect of the power conductors is shown in section CC.

[0047] It is understandable that the present application does not limit the layer where the data wires or the power supply wires are located. As long as the data wires and the power supply wires do not contact each other in the thickness direction, they can be used in the embodiments of the present application.

[0048] Since there are data wires overlapping with the power supply wires in addition to the power supply wires, when the display substrate is operating, the electromagnetic field generated by the current carried by the power supply wires affects the nearby data wires, resulting in unwanted interference signals in the data wires. This crosstalk may cause the quality of data transmission to deteriorate and increase the error rate in data transmission.

[0049] By reducing the overlapping area, the mutual influence between the wires can be reduced, the ratio between the signal and the noise can be improved, thereby improving the signal-to-noise ratio and maintaining the clarity and accuracy of the signal.

[0050] Based on this, in the present application, the power supply wire may further be provided with a second opening or U-shaped groove, and the second opening or U-shaped groove is at least partially located within the overlapping area; the second opening is at least partially located outside the coverage of the pixel anode and can pass light.

[0051] A second opening or U-shaped groove is provided on the power supply conductor. Since the second opening or U-shaped groove is located in the overlapping area of ​​the power supply conductor and the data conductor, the second opening or U-shaped groove can reduce the size of the overlapping area, further reducing the electromagnetic field generated by the power supply conductor at the overlapping point, thereby reducing crosstalk to the data conductor.

[0052] In one embodiment, referring to FIG4a , a second opening 10122 may be provided on the power supply conductor. In another embodiment, referring to FIG4b , a U-shaped groove 10123 may be provided on the power supply conductor. In another embodiment, both the second opening 10122 and the U-shaped groove 10123 may be provided on the power supply conductor.

[0053] In any embodiment of the present application, the U-shaped groove may refer to any one or more grooves having open edges on the power supply conductor.

[0054] It is understandable that the present application does not limit the number of second openings and U-shaped grooves, and can be determined according to the specific needs of the product.

[0055] Based on any embodiment of the present application, the display panel may utilize LTPO (Low-Temperature Polycrystalline Oxide) technology. Compared to conventional solutions, the power supply wires on both sides of the first opening in the present application are connected to the pixel anode, increasing the contact area between the pixel anode and the power supply wires. This optimizes the equivalent capacitance of the pixel anode at the contact point and resolves the issue of rising dark-state voltage in LTPO.

[0056] This reduction in dark-state voltage means that pixels can be more effectively turned off when the display is not showing active content, reducing power consumption. It also allows for more accurate realization of deep blacks, improving display contrast and image quality.

[0057] To further improve the flatness of the pixel anode, referring to FIG5 , a power supply conductor 10124 of any shape can be added below the pixel anode to provide increased support for the pixel anode, thereby improving the flatness of the pixel anode. The dotted line in the figure indicates the installation position of the pixel anode. Adding a power supply conductor 10124 of any shape can also provide increased support for the pixel anode. The X-shaped and straight-shaped ones in the figure are only exemplary.

[0058] In one embodiment of the present application, referring to Figure 6, the display substrate 10 can be arranged with an auxiliary power supply wire 1013, which crosses the first opening 10121 and is connected to the power supply wire 1012. The auxiliary power supply wire 1013 is at least partially connected to the anode pixel 1011. The auxiliary power supply wire 1013 has the same thickness as the power supply wire 1012 and is parallel to the data wire 1021.

[0059] In the above solution, the auxiliary power supply wires have the same thickness as the power supply wires, thereby increasing the support area without causing unevenness. Furthermore, the auxiliary power supply wires are parallel to the data wires, so there is no overlap between them, which can reduce crosstalk from the auxiliary power supply wires to the data wires.

[0060] It can be understood that in one embodiment of the present application, the power supply wires, the auxiliary power supply wires and other power supply wires can be welded or pasted into shape.

[0061] In another embodiment, the power supply wire and the auxiliary power supply wire may be formed integrally.

[0062] The one-piece power supply wires and auxiliary wires do not have interfaces, so the power supply is more stable and the impact of uneven thickness at the interface on the display effect can be reduced.

[0063] The integrally formed power supply conductors and auxiliary conductors can be obtained by processing through technical means such as laser cutting, stamping or etching.

[0064] In an embodiment of the present application, the pixel anodes corresponding to at least two different pixels have different sizes.

[0065] It is understandable that pixel anodes of different sizes can be connected to the same power supply wire (as shown in FIG. 7 a ) or to different power supply wires (as shown in FIG. 7 b ).

[0066] In one embodiment, the size of the pixel anode can be set according to the color of the pixel. The pixel anodes corresponding to the pixels of the same color have the same size, and the pixel anodes corresponding to the pixels of different colors have different sizes.

[0067] On the basis of any of the above embodiments, pixel anodes of different sizes are arranged on different types of power supply wires, so that the areas through which light passes through the positions of the pixel anodes of different sizes are equal.

[0068] It can be understood that different types of power supply wires can be understood as differences in one or more variables including the thickness of the power supply wires, the position / size / shape of the openings, the position / size / shape of the slots, whether they are auxiliary power supply wires, and the position / size / shape of the auxiliary power supply wires.

[0069] In the present application, other solutions for changing the power supply wires may also be adopted. Solutions obtained without creative work based on the embodiments given in the present application should fall within the scope of protection of the present application.

[0070] By using different power supply wires for the pixel anodes of pixels of different colors, the effect of equal light transmission area can be achieved.

[0071] It is understood that the area for light transmission in this application may refer to the area of ​​the first opening, the second opening, the U-shaped groove, etc. that is not blocked by the pixel anode, the power supply wire, the auxiliary power supply wire, or the signal wire. Those skilled in the art can freely select the type of power supply wire that meets the actual product requirements based on the content of the embodiments provided in this application.

[0072] In one embodiment, referring to FIG8 , exemplary pixel sizes are given, wherein the sizes and shapes of the pixel anodes R, G, and B corresponding to the red, green, and blue pixels are different, and therefore the support methods of the power supply wires corresponding to the three different pixel anodes may be different to ensure uniform light input.

[0073] It is understandable that the above embodiment may only be applied to the pixel anodes in the area requiring light transmission. For the area where the optical sensing device is not required, the power supply wires connected to the pixel anodes of the same size may also be different.

[0074] Correspondingly, referring to FIG9 , the present application further provides a display panel 11 , which may include the display substrate 10 in any of the above embodiments.

[0075] The embodiments and beneficial effects of the display panel can refer to the above part of the display substrate.

[0076] Correspondingly, referring to Figure 10, the present application also provides a display screen assembly 1, which may include the above-mentioned display panel 11 and an under-screen optical sensing device 12, and the under-screen sensing device 12 is used to receive light passing through the display panel 11.

[0077] In this application, the under-screen sensor device may include one or more of the following:

[0078] Under-screen fingerprint recognition device, under-screen camera device, under-screen ambient light sensor device, and under-screen distance sensor device.

[0079] On this basis, the display screen assembly may also include components of other electronic devices, such as touch devices, flexible cables, heat sinks, driver circuit boards, screen brackets, etc. This application does not impose specific restrictions on this and it depends on the actual product.

[0080] Correspondingly, referring to Figure 11 , this application also provides another display substrate 20 , which may be arranged with a plurality of pixel anodes 2011 and power supply wires 2012 . The power supply wires 2012 are provided with U-shaped grooves, and the pixel anodes are disposed on the U-shaped grooves, contacting the power supply wires in the U-shaped grooves. The pixel anodes are located in the middle of the U-shaped grooves, and the U-shaped grooves are light-permeable. The hierarchical relationship of the various components is shown in section DD.

[0081] Because the power supply conductor has a U-shaped groove, the middle of the groove is also where the conductor narrows, which is also the bottom of the U-shaped groove in Figure 11. The pixel anode is located at this location, ensuring uniform force distribution on both sides of the middle of the U-shaped groove, improving the flatness of the pixel anode and alleviating color cast issues.

[0082] In one embodiment, the position of the power supply wire of the U-shaped groove may coincide with the symmetry axis of the pixel anode to obtain a more uniform supporting effect.

[0083] In one embodiment, the display substrate may further be arranged with data wires, and the data wires and the power supply wires have an overlapping area.

[0084] Likewise, the existence of the overlapping area causes crosstalk between the power supply conductor and the data conductor.

[0085] In order to reduce this crosstalk, in one embodiment, the power supply wire can also be provided with a second U-shaped groove or opening, and the second U-shaped groove or opening is at least partially located in the overlapping area; the second U-shaped groove or opening is at least partially located outside the coverage range of the pixel anode and can pass light.

[0086] Since the second U-shaped groove and the opening are located within the overlapping area, the second U-shaped groove and the opening are provided on the power supply wire to reduce the size of the overlapping area, reduce the size of the magnetic field generated by the power supply wire at the overlapping point, and thereby reduce the crosstalk of the power supply wire to the signal wire.

[0087] In the above embodiment, the second U-shaped groove and the opening are located outside the coverage of the pixel anode, and thus are not easily blocked by the pixel anode, thereby being able to play a role in transmitting light.

[0088] In an exemplary embodiment, referring to FIG. 12 , an auxiliary power supply wire may be further added, and the shape and size of the auxiliary power supply wire may be selected as required.

[0089] In another embodiment, as shown in FIG. 12 , the auxiliary power supply wires may be combined with other components to increase the uniform support effect on the pixel anode.

[0090] In one embodiment of the present application, the display panel may adopt LTPO technology.

[0091] Compared to conventional solutions, the middle portion of the U-shaped groove increases the contact area between the pixel anode and the power supply wire, thereby optimizing the equivalent capacitance and reducing the dark-state voltage. This lower dark-state voltage means that when the display is inactive, the pixel can be more effectively turned off, thereby reducing energy consumption. This also helps to more accurately achieve deep blacks, improving display contrast and image quality.

[0092] In the present application, the sizes of pixel anodes representing pixels of different colors are different; therefore, in one embodiment, the pixel anodes representing pixels of different colors are arranged on different types of power supply wires, and the areas of the pixel anodes corresponding to pixels of different colors that transmit light are equal.

[0093] In this solution, the auxiliary power supply wires are the same thickness as the power supply wires, thus increasing the support area without causing surface unevenness. Furthermore, the auxiliary power supply wires are parallel to the data wires, so there is no overlap between them, which helps reduce crosstalk from the auxiliary power supply wires to the data wires.

[0094] Correspondingly, referring to FIG. 13 , the present application further provides a display panel 21 , which may include the display substrate 20 in any embodiment.

[0095] Correspondingly, referring to Figure 14, the present application also provides a display screen assembly 2, which may include the above-mentioned display panel 21 and an under-screen optical sensing device 22, and the under-screen sensing device 22 is used to receive light passing through the display panel.

[0096] In this application, the under-screen sensor device may include one or more of the following:

[0097] Under-screen fingerprint recognition device, under-screen camera device, under-screen ambient light sensor device, and under-screen distance sensor device.

[0098] On this basis, the display screen assembly may also include components of other electronic devices, such as touch devices, flexible cables, heat sinks, driver circuit boards, screen brackets, etc. This application does not impose specific restrictions on this and it depends on the actual product.

[0099] The contents of the above embodiments are merely exemplary, and those skilled in the art may combine multiple embodiments according to actual needs. It is understood that for the same structure described in different parts, its beneficial effects and embodiments may refer to the contents described in other parts.

[0100] For an example of a combination, see Figure 15 . Polygons of different shapes represent pixel anodes for pixels of different colors, and the crisscrossing wires represent power and data wires. Specifically, each dotted ellipse represents a unit. Figure 15 illustrates four units, each consisting of a red pixel anode 2011a, two green pixel anodes 2011b, and a blue pixel anode 2011c. The red and blue pixel anodes 2011a and 2011c are located on the same power supply wire 2012a, while the blue pixel anode 2011b is located on the same power supply wire 2012b. As can be seen in the figure, 2012a and 2012b have different widths, and the U-shaped grooves corresponding to the red and blue pixel anodes 2011a and 2011c on the same power supply wire 2012a are also different to accommodate the light transmission requirements of the pixel anodes of different sizes.

[0101] Although this specification includes many specific implementation details, these should not be interpreted as limiting the scope of any invention or the scope of protection claimed, but are mainly used to describe the features of specific embodiments of specific inventions. Certain features described in multiple embodiments within this specification may also be implemented in combination in a single embodiment. On the other hand, the various features described in a single embodiment may also be implemented separately in multiple embodiments or in any suitable sub-combination. In addition, although features may work in certain combinations as described above and even initially claimed as such, one or more features from the claimed combination may be removed from the combination in some cases, and the claimed combination may point to a sub-combination or a variation of the sub-combination.

[0102] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A display substrate, characterized in that: The display substrate is arranged with a plurality of pixel anodes and power supply wires; the power supply wire is provided with a first opening, and the pixel anode is arranged on the first opening along the length direction of the power supply wire. The diameter of the first opening along the width direction of the pixel anode is smaller than the width of the pixel anode, so that the pixel anode is connected to the power supply wire across the first opening, and the first opening can transmit light.

2. The display substrate according to claim 1, wherein: The display substrate is further provided with data wires, the data wires and the power supply wires are located in different layers of the display substrate, and there is an overlapping area between the data wires and the power supply wires.

3. The display substrate according to claim 2, wherein: The power supply wire is further provided with a second opening or U-shaped groove, which is at least partially located within the coverage of the data wire; the second opening is at least partially located outside the coverage of the pixel anode and can transmit light.

4. The display substrate according to claim 1, wherein The display substrate adopts LTPO technology.

5. The display substrate according to claim 2, wherein: The display substrate is further provided with an auxiliary power supply wire, which crosses the first opening and is connected to the power supply wire. The auxiliary power supply wire is at least partially connected to the anode pixel. The auxiliary power supply wire has the same thickness as the power supply wire and is parallel to the data wire.

6. The display substrate according to claim 5, wherein: The power supply wire and the auxiliary power supply wire are integrally formed.

7. The display substrate according to claim 1, wherein: The pixel anodes corresponding to at least two different pixels have different sizes.

8. The display substrate according to claim 7, wherein: Pixel anodes of different sizes are arranged on different types of power supply wires, so that areas where the pixel anodes of different sizes are located and through which light passes are equal.

9. A display panel, characterized in that: The display panel comprises the display substrate according to any one of claims 1 to 7.

10. A display screen assembly, characterized in that: The display screen assembly includes the display panel as claimed in claim 9 and an under-screen optical sensing device, wherein the under-screen optical sensing device is used to receive light passing through the display panel.

11. A display substrate, characterized in that: The display substrate is arranged with a plurality of pixel anodes and power supply wires; the power supply wire is provided with a U-shaped groove, the pixel anode is arranged on the U-shaped groove, contacts the power supply wire of the U-shaped groove, and the pixel anode is located in the middle of the power supply wire of the U-shaped groove, and the U-shaped groove can transmit light.

12. The display substrate according to claim 11, wherein: The display substrate is further provided with data wires, the data wires and the power supply wires are located in different layers of the display substrate, and there is an overlapping area between the data wires and the power supply wires.

13. The display substrate according to claim 12, wherein: The power supply wire is further provided with a second U-shaped groove or opening, which is at least partially located within the coverage of the data wire; the second U-shaped groove or opening is at least partially located outside the coverage of the pixel anode and can transmit light.

14. The display substrate according to claim 11, wherein The display substrate adopts LTPO technology.

15. The display substrate according to claim 11, wherein The pixel anodes corresponding to at least two different pixels have different sizes.

16. The display substrate according to claim 15, wherein: Pixel anodes of different sizes are arranged on different types of power supply wires, so that areas where the pixel anodes of different sizes are located and through which light passes are equal.

17. A display panel, characterized in that: The display panel comprises the display substrate according to any one of claims 11 to 16.

18. A display screen assembly, characterized in that: The display screen assembly includes the display panel as claimed in claim 17 and an under-screen optical sensing device, wherein the under-screen optical sensing device is used to receive light passing through the display panel.

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