Display substrate and display device

Abstract

A display substrate includes: a substrate, a circuit structure layer, a light-emitting structure layer, and a plurality of conductive layers. The circuit structure layer is located on one side of the substrate and includes a plurality of first pixel circuits located in a second display area. The light-emitting structure layer is located on the side of the circuit structure layer away from the substrate and includes a plurality of first light-emitting elements located in a first display area. The plurality of conductive layers are located between the circuit structure layer and the light-emitting structure layer and include a plurality of conductive lines. The plurality of conductive lines of at least one conductive layer include: a plurality of first conductive lines and a plurality of second conductive lines. The first conductive lines extend in a first direction, and the second conductive lines at least include a first portion extending in the first direction and a second portion extending in a second direction. In the second direction, the first portions of the plurality of second conductive lines and the plurality of first conductive lines are alternately arranged.

Description

Technical Field

[0001] This application relates to, but is not limited to, the field of display technologies, and particularly to a display substrate and a display device. Background Art

[0002] Organic Light Emitting Diode (OLED) and Quantum-dot Light Emitting Diode (QLED) are active light-emitting display devices, which have the advantages of self-luminescence, wide viewing angle, high contrast ratio, low power consumption, extremely high response speed, thinness, flexibility, and low cost. The under-screen camera technology is a brand-new technology proposed to increase the screen-to-body ratio of a display device. Summary of the Invention

[0003] The following is an overview of the subject matter described in detail in this application. This overview is not intended to limit the scope of protection of the claims.

[0004] Embodiments of the present disclosure provide a display substrate and a display device.

[0005] On the one hand, embodiments of the present disclosure provide a display substrate, including: a substrate, a circuit structure layer, a light-emitting structure layer, and a plurality of conductive layers. The substrate includes a display area, and the display area includes a first display area and a second display area that do not overlap with each other. The second display area is located on at least one side of the first display area. The circuit structure layer is located on one side of the substrate and includes a plurality of first pixel circuits located in the second display area. The light-emitting structure layer is located on the side of the circuit structure layer away from the substrate and includes a plurality of first display units located in the first display area. At least one first display unit includes a plurality of first light-emitting elements that emit lights of different colors. The plurality of conductive layers are located between the circuit structure layer and the light-emitting structure layer and include a plurality of conductive lines. At least one first pixel circuit among the plurality of first pixel circuits is electrically connected to at least one first light-emitting element among the plurality of first light-emitting elements through at least one conductive line. The plurality of conductive lines of at least one conductive layer include: a plurality of first conductive lines and a plurality of second conductive lines. The first conductive lines extend in a first direction, and the second conductive lines at least include a first part extending in the first direction and a second part extending in a second direction. In the second direction, the first parts of the plurality of second conductive lines and the plurality of first conductive lines are alternately arranged. The first direction intersects the second direction.

[0006] In some exemplary embodiments, the plurality of first display units arranged along the first direction are a row of first display units; in the direction from the center to the edge of the first display area along the second direction, the number of first conductive lines of the same conductive layer to which multiple rows of first display units in the first display area are electrically connected gradually decreases; a first portion of the second conductive line of the conductive layer is disposed at a position vacated due to the decrease in the number of the first conductive lines.

[0007] In some exemplary embodiments, in the second direction, the number of first display units in at least two adjacent rows of first display units is different.

[0008] In some exemplary embodiments, in a row of first display units, when adjacent first light-emitting elements are electrically connected to different conductive lines of the same conductive layer, the conductive lines to which the adjacent first light-emitting elements are electrically connected are located on opposite sides of the anode connection electrode to which the first light-emitting elements in this row of first display units are electrically connected in the second direction.

[0009] In some exemplary embodiments, a second portion of the second conductive line has a length along the second direction greater than the length of one first display unit along the second direction.

[0010] In some exemplary embodiments, the at least one first display unit includes: a first light-emitting element that emits first-color light, a first light-emitting element that emits second-color light, and two first light-emitting elements that emit third-color light.

[0011] In some exemplary embodiments, the plurality of conductive layers include: a first conductive layer and a second conductive layer sequentially disposed along a direction away from the substrate.

[0012] In some exemplary embodiments, the first conductive layer includes a plurality of first conductive lines and a plurality of second conductive lines, and the second conductive layer includes a plurality of first conductive lines.

[0013] In some exemplary embodiments, the first display area includes: N rows of first display units arranged from the center to the edge of the first display area along the second direction, and the number of first display units included in the i-th row of first display units is greater than or equal to the number of first display units included in the (i + 1)-th row of first display units, where i is an integer greater than 0 and less than N.

[0014] In some exemplary embodiments, the number of first conductive lines of the second conductive layer electrically connected to the first display units in the i-th row is the same as the number of first conductive lines of the second conductive layer electrically connected to the first display units in the (i + 1)-th row. The number of first conductive lines of the first conductive layer electrically connected to the first display units in the i-th row is greater than or equal to the number of first conductive lines of the first conductive layer electrically connected to the first display units in the (i + 1)-th row.

[0015] In some exemplary embodiments, the first display units in the i-th row are electrically connected to the second conductive lines of the first conductive layer, and a first portion of the second conductive lines electrically connected to the first display units in the i-th row is adjacent to the first conductive lines of the first conductive layer electrically connected to the first display units in the j-th row, where j is an integer greater than i and less than or equal to N.

[0016] In some exemplary embodiments, in the first display units in the i-th row, the first light-emitting elements close to the center of the first display area are electrically connected to the first pixel circuit through the second conductive lines located in the first conductive layer, and the first light-emitting elements close to the edge of the first display area are electrically connected to the first pixel circuit through the first conductive lines located in the first conductive layer. In the first display units in the j-th row, the first light-emitting elements close to the center of the first display area are electrically connected to the first pixel circuit through the first conductive lines located in the second conductive layer, and the first light-emitting elements close to the edge of the first display area are electrically connected to the first pixel circuit through the first conductive lines located in the first conductive layer.

[0017] In some exemplary embodiments, the circuit structure layer further includes: a plurality of second pixel circuits located in the second display area. The light-emitting structure layer further includes: a plurality of second light-emitting elements located in the second display area. At least one of the plurality of second pixel circuits is electrically connected to at least one of the plurality of second light-emitting elements, and the at least one second pixel circuit is configured to drive the at least one second light-emitting element to emit light.

[0018] On the other hand, embodiments of the present disclosure provide a display device including the display substrate as described above.

[0019] In some exemplary embodiments, the display device further includes: a sensor located on a non-display surface side of the display substrate, and a positive projection of the sensor on the display substrate overlaps with the first display area of the display substrate.

[0020] Other aspects can be understood after reading and understanding the drawings and the detailed description. Description of the Drawings

[0021] The accompanying drawings are used to provide a further understanding of the technical solutions of the present disclosure, and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the technical solutions of the present disclosure, and do not constitute a limitation to the technical solutions of the present disclosure. The shapes and sizes of one or more components in the accompanying drawings do not reflect the true proportions, and the purpose is only to schematically illustrate the content of the present disclosure.

[0022] Figure 1 Schematic diagram of a display substrate according to at least one embodiment of the present disclosure;

[0023] Figure 2 Partial schematic diagram of a display substrate according to at least one embodiment of the present disclosure;

[0024] Figure 3 is Figure 2 Connection schematic diagram of the first conductive layer in

[0025] Figure 4 Partial cross-sectional schematic diagram of a display substrate according to at least one embodiment of the present disclosure;

[0026] Figure 5 Distribution schematic diagram of the first light-emitting elements in the first display area according to at least one embodiment of the present disclosure;

[0027] Figure 6 is Figure 5 Partial schematic diagram of the first display area in

[0028] Figure 7 Trace schematic diagram of the first conductive layer according to at least one embodiment of the present disclosure;

[0029] Figure 8 is Figure 7 Partial enlarged schematic diagram of area S1 in

[0030] Figure 9 and Figure 10 Partial connection schematic diagram of multiple rows of first display units and conductive wires according to at least one embodiment of the present disclosure;

[0031] Figure 11A is Figure 9 Trace schematic diagram of the first conductive layer in

[0032] Figure 11B is Figure 9 Trace schematic diagram of the second conductive layer in

[0033] Figure 12A is Figure 10 Trace schematic diagram of the first conductive layer in

[0034] Figure 12B is Figure 10 Trace schematic diagram of the second conductive layer in

[0035] Figure 13 Schematic diagram of a display device according to at least one embodiment of the present disclosure. Detailed implementation manners

[0036] Embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The implementation manners can be implemented in multiple different forms. It is easy for those of ordinary skill in the art to understand the fact that the manners and contents can be transformed into other forms without departing from the gist and scope of the present disclosure. Therefore, the present disclosure should not be construed as being limited only to the contents described in the following implementation manners. Without conflict, the embodiments and features in the embodiments of the present disclosure can be combined arbitrarily with each other.

[0037] In the accompanying drawings, sometimes for clarity, the sizes of one or more components, the thicknesses of layers, or regions are exaggerated. Therefore, one manner of the present disclosure is not necessarily limited to such dimensions, and the shapes and sizes of one or more components in the drawings do not reflect the true proportions. In addition, the drawings schematically show ideal examples, and one manner of the present disclosure is not limited to the shapes or values shown in the drawings.

[0038] The ordinal numbers such as "first", "second", "third", etc. in this specification are set to avoid confusion of components, rather than to limit the quantity. "Multiple" in the present disclosure means two or more quantities.

[0039] In this specification, for convenience, terms indicating orientation or positional relationships such as "middle part", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are used to describe the positional relationships of components with reference to the accompanying drawings, which are only for the convenience of describing this specification and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present disclosure. The positional relationships of the components are appropriately changed according to the directions of the described components. Therefore, it is not limited to the terms described in the specification, and can be appropriately replaced according to the situation.

[0040] In this specification, unless otherwise clearly defined and limited, the terms "mounted", "connected", and "coupled" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate member, or the communication inside two elements. For those of ordinary skill in the art, the meanings of the above terms in the present disclosure can be understood according to the circumstances.

[0041] In this specification, "electrically connected" includes cases where constituent elements are connected together through an element having some electrical effect. The "element having some electrical effect" is not particularly limited as long as it can transmit an electrical signal between the constituent elements to be connected. Examples of the "element having some electrical effect" include not only electrodes and wirings, but also switching elements such as transistors, resistors, inductors, capacitors, and other elements having various functions.

[0042] In this specification, a transistor refers to an element including at least three terminals: a gate, a drain, and a source. The transistor has a channel region between the drain (drain electrode terminal, drain region, or drain electrode) and the source (source electrode terminal, source region, or source electrode), and current can flow through the drain, the channel region, and the source. In this specification, the channel region refers to the region where current mainly flows.

[0043] In this specification, the first pole can be the drain and the second pole can be the source, or the first pole can be the source and the second pole can be the drain. In cases where transistors with opposite polarities are used or the direction of current changes during circuit operation, etc., the functions of the "source" and "drain" sometimes switch with each other. Therefore, in this specification, the "source" and "drain" can switch with each other. Additionally, the gate can also be referred to as the control pole.

[0044] In this specification, "parallel" means a state where the angle formed by two straight lines is -10° or more and 10° or less, and thus also includes a state where the angle is -5° or more and 5° or less. Additionally, "perpendicular" means a state where the angle formed by two straight lines is 80° or more and 100° or less, and thus also includes an angle state of 85° or more and 95° or less.

[0045] In this specification, shapes such as circles, ellipses, triangles, rectangles, trapezoids, pentagons, or hexagons are not strictly defined and can be approximate circles, approximate ellipses, approximate triangles, approximate rectangles, approximate trapezoids, approximate pentagons, or approximate hexagons, etc. There can be some small deformations due to tolerances, and there can be chamfers, rounded edges, and deformations, etc.

[0046] The "light transmittance" in the present disclosure refers to the ability of light to pass through a medium, which is the percentage of the light flux passing through a transparent or translucent body to its incident light flux.

[0047] In the present disclosure, "about" and "substantially" mean that the boundaries are not strictly defined and allow for cases within the process and measurement errors. In the present disclosure, "substantially the same" means a case where the numerical values differ by within 10%.

[0048] At least one embodiment of the present disclosure provides a display substrate, including: a substrate, a circuit structure layer, a light-emitting structure layer, and a plurality of conductive layers. The substrate includes a display area, and the display area includes a first display area and a second display area that do not overlap with each other. The second display area is located on at least one side of the first display area. The circuit structure layer is located on one side of the substrate and includes a plurality of first pixel circuits located in the second display area. The light-emitting structure layer is located on the side of the circuit structure layer away from the substrate and includes a plurality of first display units located in the first display area. At least one first display unit includes a plurality of first light-emitting elements that emit light of different colors. The plurality of conductive layers are located between the circuit structure layer and the light-emitting structure layer and include a plurality of conductive lines. At least one of the plurality of first pixel circuits is electrically connected to at least one first light-emitting element through at least one conductive line. The plurality of conductive lines of at least one conductive layer include: a plurality of first conductive lines and a plurality of second conductive lines. The first conductive lines extend along a first direction, and the second conductive lines at least include a first portion extending along the first direction and a second portion extending along a second direction. In the second direction, the first portions of the plurality of second conductive lines and the plurality of first conductive lines are alternately arranged. The first direction intersects the second direction.

[0049] In the present disclosure, A extending along the B direction means that A may include a main body portion and a secondary portion connected to the main body portion. The main body portion is in the shape of a line, a line segment, or a strip, the main body portion extends along the B direction, and the length of the main body portion extending along the B direction is greater than the length of the secondary portion extending along other directions. When it is said that "A extends along the B direction" in the present disclosure, it always means that "the main body portion of A extends along the B direction".

[0050] In the display substrate provided in this embodiment, within at least one conductive layer, by interspersing the first portions of the second conductive lines among the plurality of first conductive lines, the length of the second portion of the second conductive lines can be reduced, thereby reducing the length difference between the conductive lines, and further optimizing the display effect.

[0051] In some exemplary embodiments, the plurality of first display units arranged along the first direction are a row of first display units. In the direction from the center to the edge of the first display area along the second direction, the number of first conductive lines electrically connected to multiple rows of first display units in the first display area located in the same conductive layer gradually decreases; the first portions of the second conductive lines of the conductive layer can be arranged at the positions vacated due to the decrease in the number of the first conductive lines. In this example, within the same conductive layer, the first portions of the second conductive lines can be arranged at the positions vacated due to the decrease in the first conductive lines, so as to achieve the interspersed arrangement of the second conductive lines among the first conductive lines, reduce the length of the second portion of the second conductive lines, thereby reducing the length of the second conductive lines, and further optimizing the display effect.

[0052] In some exemplary embodiments, in the second direction, the number of first display units in at least two adjacent rows of first display units may be different. In this example, since the number of first display units in adjacent rows of first display units is different, the number of conductive wires electrically connected to the adjacent first display units is also different. By arranging the conductive wires, the first part of the second conductive wire can be interspersed between the first conductive wires, and the layout space of the conductive wires between adjacent rows of first display units can be not increased. In this way, the length of the longest conductive wire can be reduced.

[0053] In some exemplary embodiments, in a row of first display units, when adjacent first light-emitting elements are electrically connected to different conductive wires in the same conductive layer, the conductive wires to which the adjacent first light-emitting elements are electrically connected may be located on opposite sides of the anode connection electrode to which the first light-emitting elements in this row of first display units are electrically connected in the second direction. In this example, in a conductive layer, by arranging multiple conductive wires along opposite sides of a row of first display units in the second direction, it is beneficial to reduce the length of the conductive wires and reasonably arrange the routing space.

[0054] In some exemplary embodiments, at least one first display unit may include: a first light-emitting element that emits first-color light, a first light-emitting element that emits second-color light, and two first light-emitting elements that emit third-color light. For example, the first light-emitting element that emits first-color light and the first light-emitting element that emits second-color light may be arranged in a row along the first direction, the two first light-emitting elements that emit third-color light may be arranged in a row along the first direction, and there is a dislocation between the above two rows of first light-emitting elements in the second direction. In some examples, the first color light may be blue light, the second color light may be red light, and the third color light may be green light. However, this embodiment is not limited thereto.

[0055] In some exemplary embodiments, the length of the second part of the second conductive wire in the second direction may be greater than the length of a first display unit in the second direction. In this example, by adjusting the layout of the second conductive wire, the length of the second part of the second conductive wire can be reduced.

[0056] In some exemplary embodiments, the multiple conductive layers may include: a first conductive layer and a second conductive layer sequentially arranged along a direction away from the substrate. However, this embodiment is not limited thereto. For example, the multiple conductive layers may include more than two conductive layers. In this example, by adopting the design of two conductive layers, the production cost can be reduced.

[0057] In some exemplary embodiments, the first conductive layer may include a plurality of first conductive lines and a plurality of second conductive lines. The second conductive layer may include a plurality of first conductive lines. In this example, the second conductive lines may be arranged in the first conductive layer. However, this embodiment is not limited thereto. For example, the second conductive lines may be provided in the second conductive layer, or the second conductive lines may be provided in both the first conductive layer and the second conductive layer.

[0058] In some exemplary embodiments, the first display area may include: N rows of first display units arranged along a second direction from the center to the edge of the first display area. Wherein, the number of first display units included in the i-th row of first display units may be greater than or equal to the number of first display units included in the (i + 1)-th row of first display units, where i is an integer greater than 0 and less than N. In some examples, N may be 20. However, this embodiment is not limited thereto.

[0059] In some exemplary embodiments, the number of first conductive lines of the second conductive layer electrically connected to the i-th row of first display units may be the same as the number of first conductive lines of the second conductive layer electrically connected to the (i + 1)-th row of first display units. The number of first conductive lines of the first conductive layer electrically connected to the i-th row of first display units may be greater than or equal to the number of first conductive lines of the first conductive layer electrically connected to the (i + 1)-th row of first display units. In some examples, the routing space occupied by the first conductive lines electrically connected to the (i + 1)-th row of first display units is less than the routing space occupied by the first conductive lines electrically connected to the i-th row of first display units, and the reduced routing space of the (i + 1)-th row of first display units can be used to arrange the second conductive lines, thereby reducing the length of the second conductive lines.

[0060] In some exemplary embodiments, the i-th row of first display units is electrically connected to the second conductive lines of the first conductive layer, and a first portion of the second conductive lines electrically connected to the i-th row of first display units is adjacent to the first conductive lines of the first conductive layer electrically connected to the j-th row of first display units, where j is an integer greater than i and less than or equal to N.

[0061] In some exemplary embodiments, in the i-th row of first display units, the first light-emitting element close to the center of the first display area is electrically connected to the first pixel circuit through the second conductive lines located in the first conductive layer, and the first light-emitting element close to the edge of the first display area is electrically connected to the first pixel circuit through the first conductive lines located in the first conductive layer. In the j-th row of first display units, the first light-emitting element close to the center of the first display area is electrically connected to the first pixel circuit through the first conductive lines located in the second conductive layer, and the first light-emitting element close to the edge of the first display area is electrically connected to the first pixel circuit through the first conductive lines located in the first conductive layer.

[0062] In some exemplary embodiments, the material of the plurality of conductive layers may include a transparent conductive material. For example, the material of at least one conductive layer may include indium tin oxide (ITO). However, the present embodiment is not limited thereto.

[0063] The solutions of the present embodiment will be illustrated by some examples below.

[0064] Figure 1 It is a schematic diagram of a display substrate according to at least one embodiment of the present disclosure. In some examples, as Figure 1 shown, the display substrate may include: a display area AA and a peripheral area BB surrounding the display area AA. The peripheral area BB may be a non-display area. The display area AA may include: a first display area A1 and a second display area A2. For example, hardware such as a photosensitive sensor (e.g., a camera) is disposed on one side of the display substrate, and the orthographic projection of the photosensitive sensor on the display substrate may overlap with the first display area A1. The first display area A1 may be a light-transmitting display area, and may also be referred to as an under-display camera (UDC) area; the second display area A2 may be a normal display area. For example, the second display area A2 may be light-impermeable and only used for display. The display substrate of the present embodiment can lay a solid foundation for the realization of a true full-screen.

[0065] In some examples, as Figure 1 shown, the first display area A1 may be located at the exact middle position at the top of the display area AA. The second display area A2 may surround the first display area A1 on all sides. However, the present embodiment is not limited thereto. For example, the first display area A1 may be located at other positions such as the upper left corner or the upper right corner of the display area AA. For example, the second display area A2 may surround at least one side of the first display area A1.

[0066] In some examples, as Figure 1 shown, the display area AA may be rectangular, such as a rounded rectangle. The second display area A2 may be circular or oval. However, the present embodiment is not limited thereto. For example, the second display area A2 may be other shapes such as rectangular, semi-circular, pentagonal or hexagonal.

[0067] In some examples, the display area AA may be provided with a plurality of sub-pixels. At least one sub-pixel may include a pixel circuit and a light-emitting element. The pixel circuit is configured to drive the connected light-emitting element. For example, the pixel circuit is configured to provide a driving current to drive the light-emitting element to emit light. The pixel circuit may include a plurality of transistors and at least one capacitor. For example, the pixel circuit may have a 3T1C (i.e., 3 transistors and 1 capacitor) structure, a 7T1C (i.e., 7 transistors and 1 capacitor) structure, a 5T1C (i.e., 5 transistors and 1 capacitor) structure, an 8T1C (i.e., 8 transistors and 1 capacitor) structure, or an 8T2C (i.e., 8 transistors and 2 capacitors) structure, etc.

[0068] In some examples, the light-emitting element may be any one of a light-emitting diode (LED), an organic light-emitting diode (OLED), a quantum dot light-emitting diode (QLED), a micro-LED (including: mini-LED or micro-LED), etc. For example, the light-emitting element may be an OLED, and under the drive of its corresponding pixel circuit, the light-emitting element may emit red light, green light, blue light, or white light, etc. The color of the light emitted by the light-emitting element can be determined as needed. In some examples, the light-emitting element may include: an anode, a cathode, and an organic light-emitting layer located between the anode and the cathode. The anode of the light-emitting element may be electrically connected to the corresponding pixel circuit. However, this embodiment is not limited thereto.

[0069] In some examples, one display unit of the display area AA may include three sub-pixels, and the three sub-pixels may be a red sub-pixel, a green sub-pixel, and a blue sub-pixel respectively. However, this embodiment is not limited thereto. In some examples, one display unit may include four sub-pixels, and the four sub-pixels may be a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a white sub-pixel respectively.

[0070] In some examples, the shape of the light-emitting element may be rectangular, diamond-shaped, pentagonal, or hexagonal. When one display unit includes three sub-pixels, the light-emitting elements of the three sub-pixels may be arranged in a horizontal side-by-side, vertical side-by-side, or triangular pyramid manner. When one display unit includes four sub-pixels, the light-emitting elements of the four sub-pixels may be arranged in a horizontal side-by-side, vertical side-by-side, or square manner. However, this embodiment is not limited thereto.

[0071] Figure 2 It is a partial schematic diagram of a display substrate according to at least one embodiment of the present disclosure. Figure 3 is Figure 2 a connection schematic diagram of the first conductive layer in. In Figure 2 andFigure 3 Only several rows of first light-emitting elements in the first display area A1 are taken as examples for illustration.

[0072] In some examples, as Figure 2 shown, the second display area A2 of the display substrate may include: a transition area and a non-transition area. The transition area may be located on at least one side outside the first display area A1 (for example, one side; or, around, that is, including the upper and lower sides and the left and right sides). In this example, the transition area may be located on opposite sides of the first display area A1 along the first direction X.

[0073] In some examples, as Figure 2 shown, the first display area A1 may include a plurality of first light-emitting elements 13 arranged in an array. The transition area of the second display area may include a plurality of first pixel circuits 11 and a plurality of second pixel circuits 12 arranged in an array, and may further include: a plurality of second light-emitting elements. At least one second pixel circuit 12 in the transition area may be electrically connected to at least one second light-emitting element and is configured to drive the second light-emitting element to emit light. The orthographic projection of the second light-emitting element on the substrate and the orthographic projection of the electrically connected second pixel circuit 12 on the substrate may at least partially overlap. At least one first pixel circuit 11 may be electrically connected to at least one first light-emitting element 13 disposed in the first display area A1 through a conductive wire (for example, a transparent conductive wire) and is configured to drive the first light-emitting element 13 to emit light. For example, one end of the conductive wire may be electrically connected to the first pixel circuit 11, and the other end may be electrically connected to the first light-emitting element 13. The conductive wire may extend from the second display area to the first display area A1. The orthographic projection of the first pixel circuit 11 on the substrate and the orthographic projection of the electrically connected first light-emitting element 13 on the substrate may have no overlap. In this example, each first light-emitting element 13 in the first display area A1 may be electrically connected to the first pixel circuit 11 in the second display area through at least one conductive wire. By disposing the first pixel circuit 11 for driving the first light-emitting element 13 in the second display area, the light shielding by the pixel circuit can be reduced, thereby increasing the light transmittance of the first display area A1.

[0074] In some examples, as Figure 2 shown, the display substrate may include a first conductive layer and a second conductive layer. The first conductive layer may be located on the side closer to the substrate than the second conductive layer. The plurality of conductive wires included in the first conductive layer are represented by solid lines in Figure 2 The plurality of conductive wires included in the second conductive layer are represented by dashed lines in Figure 2 The first conductive layer and the second conductive layer may adopt a transparent conductive material. For example, a conductive oxide material such as indium tin oxide (ITO) may be adopted. However, this embodiment is not limited thereto.

[0075] In some examples, as Figure 2As shown, the non-transition region of the second display area A2 may include a plurality of second pixel circuits 12 and a plurality of dummy pixel circuits 15 arranged in an array, and may also include a plurality of second light-emitting elements. At least one second pixel circuit 12 in the non-transition region may be electrically connected to at least one second light-emitting element, and the orthographic projection of the second light-emitting element on the substrate may at least partially overlap with the orthographic projection of the electrically connected second pixel circuit 12 on the substrate.

[0076] In some examples, as Figure 2 shown, the second display area A2 may further include: a plurality of dummy pixel circuits 15. By providing the dummy pixel circuits, it is beneficial to improve the uniformity of components of multiple film layers in the etching process. For example, the structure of the dummy pixel circuit may be substantially the same as that of the first pixel circuit and the second pixel circuit in the same row or column where it is located, except that it is not electrically connected to any light-emitting element.

[0077] In some examples, since the second display area A2 is provided with not only the first pixel circuit 11 electrically connected to the first light-emitting element 13 but also the second pixel circuit 12 electrically connected to the second light-emitting element, the number of pixel circuits in the second display area A2 may be greater than the number of second light-emitting elements. In some examples, as Figure 2 shown, an area for arranging additional pixel circuits (including the first pixel circuit and the dummy pixel circuit) may be obtained by reducing the size of the second pixel circuit 12 in the first direction X. For example, the size of the pixel circuit in the first direction X may be smaller than the size of the second light-emitting element in the first direction X. In this example, as Figure 2 shown, the original every a columns of pixel circuits may be compressed along the first direction X, so as to create an arrangement space for an additional column of pixel circuits, and the space occupied by the a columns of pixel circuits before compression and the a + 1 columns of pixel circuits after compression may be the same. Wherein, a may be an integer greater than 1. In this example, a may be equal to 2. However, this embodiment is not limited thereto. For example, a may be equal to 3 or 4.

[0078] In some other examples, the original b rows of pixel circuits may be compressed along the second direction Y, so as to create an arrangement space for an additional row of pixel circuits, and the space occupied by the b rows of pixel circuits before compression and the b + 1 rows of pixel circuits after compression is the same. Wherein, b may be an integer greater than 1. Alternatively, an area for arranging additional pixel circuits may be obtained by reducing the size of the first pixel circuit in the first direction X and the second direction Y.

[0079] In the embodiments of the present disclosure, a row of light-emitting elements may refer to that the pixel circuits connected to the light-emitting elements in that row are all connected to the same gate line (for example, a scan line). A row of pixel circuits may refer to that the pixel circuits in that row are all connected to the same gate line. However, this embodiment is not limited thereto.

[0080] In some examples, such as Figure 2 and Figure 3 shown, the first light-emitting element 13 can be electrically connected to the first pixel circuit 11 through a conductive wire. Among the first light-emitting elements 13 in one row, the first pixel circuit 11 to which the first light-emitting element 13 emitting green light is electrically connected is closer to the first display area A1 than each of the first pixel circuits to which the first light-emitting elements 13 emitting other colors of light are electrically connected. However, this embodiment is not limited thereto. For example, along the first direction X from the center to the edge of the first display area A1, the first light-emitting element 13 close to the center of the first display area A1 can be electrically connected to the first pixel circuit 11 far from the first display area A1, and the first light-emitting element 13 far from the center of the first display area A1 can be electrically connected to the first pixel circuit 11 close to the first display area A1.

[0081] In some examples, such as Figure 2 and Figure 3 shown, the first conductive layer of the display substrate may include: a plurality of first conductive wires 161 and a plurality of second conductive wires 162. In the second direction Y, the first conductive wires 161 and the second conductive wires 161 are alternately arranged. The first conductive wire 161 may be a line with a main body portion along the first direction X. The second conductive wire 162 may include a first portion 162a extending along the first direction X, and a second portion 162b and a third portion 162c extending along the second direction Y. The first portion 162a is connected between the second portion 162b and the third portion 162c. The second portion 162b may be located in the first display area A1 and be electrically connected to the first light-emitting element 13 in the first display area A1. The third portion 162c may be located in the second display area and be electrically connected to the first pixel circuit 11 in the second display area A2. The first portion 162a may extend from the second display area to the first display area A1. The lengths of the second portion 162b and the third portion 162c may be substantially the same. The lengths of the second portion 162b and the third portion 162c along the second direction Y may be greater than the length of one display unit along the second direction Y. The third portion 162c may be arranged in the area shown by the dummy pixel circuit 15 in the second display area A2. However, this embodiment is not limited thereto.

[0082] For the display substrate provided in this embodiment, within a conductive layer, the first conductive line can gradually decrease along a second direction from the center of the first display area to the edge. The second conductive line can pass through the positions vacant from the first conductive line, which can reduce the length of the second part of the second conductive line along the second direction, thereby reducing the length of the second conductive line, reducing the length difference of the conductive lines electrically connected to different first light-emitting elements, thereby reducing the anode capacitance difference of the first light-emitting elements, and further improving the display effect of the display substrate. In some examples, regarding the brightness difference existing between the first display area and the second display area, it can be improved by using dual Gamma, Demura, IC algorithms, etc. The above algorithms can refer to the existing implementation methods, so they will not be elaborated here.

[0083] Figure 4 It is a partial cross-sectional schematic diagram of the display substrate of at least one embodiment of the present disclosure. In some examples, as Figure 4 shown, in the direction perpendicular to the display substrate, the second display area A2 may include: a substrate 100, and a circuit structure layer 200, two conductive layers (for example, a first conductive layer 301 and a second conductive layer 302), a light-emitting structure layer 400, and a packaging structure layer 500 that are sequentially disposed on the substrate 100. In Figure 4 this example, two conductive layers are taken as an example for illustration. The first display area A1 may include: a substrate 100, a composite insulating layer, two conductive layers (for example, a first conductive layer 301 and a second conductive layer 302), a light-emitting structure layer 400, and a packaging structure layer 500 that are sequentially disposed on the substrate 100. In this example, the circuit structure layer 200 may not be provided in the first display area A1, which can improve the light transmittance of the first display area.

[0084] In some examples, as Figure 4 shown, the substrate 100 may include: a base 101, a first flexible material layer 102, a first inorganic material layer 103, a second flexible material layer 104, and a second inorganic material layer 105 that are sequentially stacked. In some other examples, the first flexible material layer 102 and the first inorganic material layer 103 of the substrate 100 in the first display area A1 may be removed, that is, the substrate 100 in the first display area may include the base 101, the second flexible material layer 104, and the second inorganic material layer 105 that are sequentially stacked, thereby further facilitating the improvement of the light transmittance of the first display area A1.

[0085] In some examples, the first flexible material layer 102 and the second flexible material layer 104 can be made of materials such as polyimide (PI), polyethylene terephthalate (PET), or a surface-treated polymer soft film. The first inorganic material layer 103 and the second inorganic material layer 105 can be made of materials such as silicon nitride (SiNx) or silicon oxide (SiOx), configured to improve the water and oxygen resistance of the substrate 101. The first inorganic material layer 103 and the second inorganic material layer 105 can be referred to as barrier layers.

[0086] In some examples, such as Figure 4 As shown, no circuit structure layer is provided in the first display area A1. The circuit structure layer 200 in the second display area A2 can include: a semiconductor layer, a first gate metal layer, a second gate metal layer, and a first source-drain metal layer sequentially disposed on the substrate 100. The semiconductor layer can at least include the active layers of transistors (e.g., the first transistor 201) of multiple pixel circuits. The first gate metal layer can at least include: the gates of multiple transistors (e.g., the first transistor 201), and the first capacitor plate of the storage capacitor (e.g., the first capacitor 202). The second gate metal layer can at least include: the second capacitor plate of the storage capacitor (e.g., the first capacitor 202). The first source-drain metal layer can at least include: the first and second poles of multiple transistors (e.g., the first transistor 201). In some examples, the first gate metal layer, the second gate metal layer, and the first source-drain metal layer can be made of a metal material, such as any one or more of silver (Ag), copper (Cu), aluminum (Al), titanium (Ti), and molybdenum (Mo), or an alloy material of the above metals, such as aluminum neodymium alloy (AlNd) or molybdenum niobium alloy (MoNb), and can be a single-layer structure or a multi-layer composite structure, such as Ti / Al / Ti, etc. The semiconductor layer can be made of one or more materials such as amorphous indium gallium zinc oxide material (a-IGZO), zinc oxide nitride (ZnON), indium zinc tin oxide (IZTO), amorphous silicon (a-Si), polycrystalline silicon (p-Si), hexathiophene, polythiophene, etc., that is, the present disclosure is applicable to transistors manufactured based on oxide (Oxide) technology, silicon technology, and organic technology.

[0087] In some examples, such as Figure 4As shown, a first insulating layer 31 may be provided between the semiconductor layer and the substrate 100, a second insulating layer 32 may be provided between the semiconductor layer and the first gate metal layer, a third insulating layer 33 may be provided between the first gate metal layer and the second gate metal layer, and a fourth insulating layer 34 may be provided between the second gate metal layer and the first source-drain layer. In some examples, the first insulating layer 31 may be referred to as a buffer layer, configured to improve the water and oxygen resistance of the substrate 100. The second insulating layer 32 and the third insulating layer 33 may be referred to as gate insulating layers, and the fourth insulating layer 34 is an interlayer insulating layer. In some examples, the first insulating layer 31 to the fourth insulating layer 34 may be inorganic insulating layers. For example, the first insulating layer 31, the second insulating layer 32, the third insulating layer 33, and the fourth insulating layer 34 may be any one or more of silicon oxide (SiOx), silicon nitride (SiNx), and silicon oxynitride (SiON), and may be a single layer, a multi-layer, or a composite layer.

[0088] In some examples, as Figure 4 shown, the first conductive layer 301 in the second display region A2 may at least include: a plurality of third anode connection electrodes (for example, the third anode connection electrode 312). The second conductive layer 302 in the second display region A2 may at least include: a plurality of fourth anode connection electrodes (for example, the fourth anode connection electrode 322). The fourth anode connection electrode 322 may be electrically connected to the third anode connection electrode 312. The third anode connection electrode 312 may be electrically connected to the second pixel circuit.

[0089] In some examples, as Figure 4 shown, the first conductive layer 301 in the first display region A1 may at least include: a plurality of conductive lines 16, a plurality of first anode connection electrodes (for example, the first anode connection electrode 311). One end of the conductive line 16 of the first conductive layer 301 and the first anode connection electrode 311 may be an integral structure, and the other end of the conductive line 16 may extend to the second display region A2 and be electrically connected to the first pixel circuit in the second display region A2. The second conductive layer 302 in the first display region A1 may at least include: a plurality of conductive lines, and a plurality of second anode connection electrodes (for example, the second anode connection electrode 321). One end of the conductive line of the second conductive layer 302 may be an integral structure with one second anode connection electrode, and the other end may extend to the second display region A2 and be electrically connected to the first pixel circuit in the second display region A2. At least one second anode connection electrode 321 of the second conductive layer 302 may be electrically connected to the first anode connection electrode 311 of the first conductive layer 301.

[0090] In some examples, as Figure 4As shown, a fifth insulating layer 35 may be provided between the first conductive layer 301 and the first source-drain metal layer, and a sixth insulating layer 36 may be provided between the first conductive layer 301 and the second conductive layer 302. In some examples, the fifth insulating layer 35 may be an inorganic or organic insulating layer, and the sixth insulating layer 36 may be an organic insulating layer. The first conductive layer 301 and the second conductive layer 302 may be made of a transparent conductive material such as ITO or IZO, for example. However, this embodiment is not limited thereto.

[0091] In some examples, as Figure 4 shown, the light-emitting structure layer 400 of the first display area A1 may include: an anode layer (for example, including the anode 41a of the first light-emitting element), a pixel definition layer 42, an organic light-emitting layer (for example, including the organic light-emitting layer 43a of the first light-emitting element), and a cathode layer 44. The light-emitting structure layer 400 of the second display area A2 may include: an anode layer (for example, including the anode 41b of the second light-emitting element), a pixel definition layer 42, an organic light-emitting layer (for example, including the organic light-emitting layer 43b of the second light-emitting element), and a cathode layer 44. For example, the anode 41a of the first light-emitting element in the first display area A1 may be electrically connected to the first pixel circuit through the second anode connection electrode 321, the first anode connection electrode 311, and the conductive wire 16. The anode 41b of the second light-emitting element in the second display area A2 may be electrically connected to the second pixel circuit through the fourth anode connection electrode 322 and the third anode connection electrode 312.

[0092] In some examples, a seventh insulating layer 37 is provided between the anode layer of the display area and the second conductive layer 302. In some examples, the seventh insulating layer 37 may be an organic insulating layer. The cathode layers of the first display area A1 and the second display area A2 may be an integral structure. In this example, the cathode layer of the display area may be a full-surface cathode. However, this embodiment is not limited thereto. For example, the cathode layer of the first display area may be a patterned cathode with a hollowed-out area. For example, the cathode layer may be a transparent cathode, which may be prepared from a transparent conductive material such as ITO or IZO, for example. In this example, the light-emitting element may emit light from the side away from the substrate through the transparent cathode, realizing a top-emission structure.

[0093] In some examples, as Figure 4As shown, the pixel definition layer 42 may have a plurality of pixel openings. The pixel openings may expose the surface of the anode layer. The organic light-emitting layer may be in contact with the anode exposed by the pixel openings. For example, the pixel definition layer within the first display area A1 may include a plurality of independent pixel definition blocks, and there may be a light-transmitting area between adjacent pixel definition blocks, which can provide a light channel for a photosensor (such as an under-screen camera) below the first display area. In some examples, the pixel definition layer may be black. By setting a black pixel definition layer, stray light can be absorbed, diffraction can be reduced, and the shooting effect of the under-screen camera can be optimized. The pixel definition layer 42 of the second display area may be transparent and continuous. In some examples, the pixel definition layer 42 may be made of materials such as polyimide, acrylic, or polyethylene terephthalate.

[0094] In some examples, any organic light-emitting layer may include a stacked hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, and an electron injection layer. For example, the organic light-emitting layer 43b of the second light-emitting element is formed within the pixel opening of the pixel definition layer 42 in the second display area A2, and the organic light-emitting layer 43a of the first light-emitting element is formed within the pixel opening of the pixel definition layer 42 in the first display area A1. The organic light-emitting layer may be connected to the anode of the light-emitting element.

[0095] In some examples, a spacer layer (PS) may be provided on the side of the pixel definition layer 42 away from the substrate 100. The spacer layer may include a plurality of first spacers 45 located in the first display area A1 and a plurality of second spacers located in the second display area A2. In some examples, the density of the first spacers in the first display area A1 is less than the density of the second spacers 45 in the second display area A2.

[0096] Figure 5 Schematic diagram of the distribution of the first light-emitting elements in the first display area of at least one embodiment of the present disclosure. Figure 6 is Figure 5 Partial schematic diagram of the first display area in. In some examples, as Figure 5 and Figure 6 shown, the first display area A1 may be generally circular. The first display area A1 may include a plurality of first display units P arranged regularly. The plurality of first display units P may be arranged in multiple rows and multiple columns. The plurality of first display units P arranged along the first direction X may be referred to as a row of first display units. The plurality of first display units P arranged along the second direction Y may be referred to as a column of first display units. The first direction X and the second direction Y may intersect, for example, be perpendicular to each other.

[0097] In some examples, as Figure 6As shown, at least one first display unit P may include: a first light-emitting element P1 that emits first-color light, a first light-emitting element P2 that emits second-color light, and two first light-emitting elements P3 and P4 that emit third-color light. For example, the first-color light may be blue light, the second-color light may be red light, and the third-color light may be green light. Within the first display unit P, the first light-emitting element P1 that emits first-color light and the first light-emitting element P2 that emits second-color light may be arranged in sequence along the first direction X and the second direction Y respectively. The first light-emitting elements P3 and P4 that emit third-color light may be arranged in sequence along the first direction X and the second direction Y respectively. The rows where the first light-emitting elements P1 and P2 are located and the rows where the first light-emitting elements P3 and P4 are located may be arranged at intervals, and there may be a dislocation in the second direction Y. However, this embodiment is not limited thereto.

[0098] In some examples, as Figure 5 shown, the first display area may have a first median line OO' along the first direction X and a second median line QQ' along the second direction Y. The first display area may be divided into four sub-areas by the first median line OO' and the second median line QQ'. For example, a first sub-area A11, a second sub-area A12, a third sub-area A13, and a fourth sub-area A14. The arrangement of the light-emitting elements in the four sub-areas may be substantially the same. The first light-emitting elements in the first sub-area A11 and the third sub-area A13 may be electrically connected to the first pixel circuit in the second display area on the left side of the first display area, and the first light-emitting elements in the second sub-area A12 and the fourth sub-area A14 may be electrically connected to the first pixel circuit in the second display area on the right side of the first display area. The electrical connection manner between the first light-emitting elements in the first sub-area A11 and the second sub-area A12 and the first pixel circuit may be substantially symmetric about the first median line OO', and the electrical connection manner between the first light-emitting elements in the third sub-area A13 and the fourth sub-area A14 and the first pixel circuit may be substantially symmetric about the first median line OO'. The electrical connection manner between the first light-emitting elements in the first sub-area A11 and the third sub-area A13 and the first pixel circuit may be substantially symmetric about the second median line QQ', and the electrical connection manner between the first light-emitting elements in the second sub-area A12 and the fourth sub-area A14 and the first pixel circuit may be substantially symmetric about the second median line QQ'.

[0099] Hereinafter, the first sub-area A11 will be taken as an example for illustration. In some examples, as Figure 5As shown, the first sub-region A11 may include 20 rows of first display units (i.e., the first row of first display units L1 to the twentieth row of first display units L20), and along the second direction Y, in the direction from the second midline QQ' to the edge of the first display area, the number of first display units in multiple rows of first display units shows a decreasing trend. For example, the number of first display units in the first row of first display units L1 to the eighth row of first display units L8 may be approximately the same, such as about 10; the number of first display units in the ninth row of first display units L9 to the twelfth row of first display units L12 may be approximately the same, such as about 9; the number of first display units in the thirteenth row of first display units L13 and the fourteenth row of first display units L14 may be approximately the same, such as about 8; the number of first display units in the fifteenth row of first display units L15 and the sixteenth row of first display units L16 may be approximately the same, such as about 7; the number of first display units in the seventeenth row of first display units L17 and the eighteenth row of first display units L18 may be approximately the same, such as about 6; the number of first display units in the nineteenth row of first display units L19 and the twentieth row of first display units L20 may be approximately the same, such as about 5.

[0100] In some examples, each first display unit may include four first light-emitting elements. Taking the example that each first light-emitting element is electrically connected to the first pixel circuit through a conductive wire, the first row of first display units L1 to the eighth row of first display units L8 each need to connect 40 conductive wires, the ninth row of first display units L9 to the twelfth row of first display units L12 each need to connect 36 conductive wires, the thirteenth row of first display units L13 and the fourteenth row of first display units L14 each need to connect 32 conductive wires, the fifteenth row of first display units L15 and the sixteenth row of first display units L16 each need to connect 28 conductive wires, the seventeenth row of first display units L17 and the eighteenth row of first display units L18 each need to connect 24 conductive wires, and the nineteenth row of first display units L19 and the twentieth row of first display units L20 each need to connect 20 conductive wires.

[0101] In some examples, taking two conductive layers as an example. Figure 7 Schematic diagram of the wiring of the first conductive layer of at least one embodiment of the present disclosure. Figure 7 Illustrates Figure 5 The conductive wires located in the first conductive layer that are electrically connected to the first light-emitting elements within the first sub-region A11 of Figure 8 For Figure 7 Partial enlarged schematic diagram of the region S1 in

[0102] In some examples, such as Figure 7 and Figure 8As shown, the first conductive layer may include: a first conductive line 161 and a second conductive line 162. In the second direction from the center to the edge of the first display area, the number of first display units in the first sub-region gradually decreases in multiple rows of first display units. The routing space between adjacent two rows of first display units is substantially the same. The number of first display units in a row of first display units near the edge of the first display area decreases, and the number of first conductive lines 161 connected electrically also decreases. The first part 162a of the second conductive line 162 connected to a row of first display units near the center of the first display area may be arranged at the position vacated due to the decrease in the number of first conductive lines 161, so as to reduce the length of the second part 162b of the second conductive line 162. The second part 162b of the second conductive line 162 may extend along the second direction Y. The second parts 162b of multiple second conductive lines 162 may be arranged adjacent to each other. However, this embodiment is not limited thereto.

[0103] Figure 9 and Figure 10 is a partial connection schematic diagram of multiple rows of first display units and conductive lines according to at least one embodiment of the present disclosure. Figure 9 shows a partial connection schematic diagram of some rows among the first row of first display units L1 to the fourteenth row of first display units L14. Figure 10 shows a partial connection schematic diagram of the seventeenth row of first display units L17 and the nineteenth row of first display units L19. Figure 11A is Figure 9 a routing schematic diagram of the first conductive layer in Figure 11B is Figure 9 a routing schematic diagram of the second conductive layer in Figure 12A is Figure 10 a routing schematic diagram of the first conductive layer in Figure 12B is Figure 10 a routing schematic diagram of the second conductive layer in

[0104] In some examples, as Figures 9 to 12B shown, taking the display substrate including a first conductive layer and a second conductive layer arranged in a stacked manner as an example for illustration. The first conductive layer may be located on the side closer to the substrate of the second conductive layer. The first conductive layer may include multiple first conductive lines 161 and multiple second conductive lines 162, and the second conductive layer may include multiple first conductive lines 163. In Figures 9 to 12B the solid line may represent the conductive line of the first conductive layer, and the dashed line may represent the conductive line of the second conductive layer. Figures 9 to 12BOnly the conductive lines in the first display area are schematically shown. The configuration of the conductive lines in the second display area may be similar to that in the first display area, so it will not be elaborated herein. In this example, the second conductive lines may be arranged only in the first conductive layer. However, this embodiment is not limited thereto. In other examples, the second conductive lines may be arranged in the second conductive layer, or the second conductive lines may be arranged in both the first conductive layer and the second conductive layer.

[0105] In some examples, as Figure 9 shown, the first conductive lines 161 of the first conductive layer and the first conductive lines 163 of the second conductive layer may both extend along the first direction X. Taking the first conductive line 161 as an example, the first conductive line 161 may include a main body portion and a secondary portion connected to the main body portion. The main body portion may extend along the first direction X, and the secondary portion may extend along the second direction Y. Moreover, the length of the secondary portion along the second direction Y may be less than the length of one first display unit along the second direction Y. The secondary portion of the first conductive line 161 may be electrically connected to the first anode connection electrode located in the first conductive layer. For example, they may be of an integral structure and then electrically connected to the second anode connection electrode located in the second conductive layer through the first anode connection electrode. The secondary portion of the first conductive line 163 of the second conductive layer may be electrically connected to the second anode connection electrode located in the second conductive layer. For example, they may be of an integral structure. In some examples, the orthographic projections of the first anode connection electrode and the second anode connection electrode on the substrate may be rectangles, such as rounded rectangles. As Figure 9 shown, in the first direction X, multiple groups of second anode connection electrodes may be arranged in sequence. One group of second anode connection electrodes may include four second anode connection electrodes 321a to 321d electrically connected to one first display unit. For example, the second anode connection electrode 321a may be electrically connected to the anode of a first light-emitting element that emits the first color light in one first display unit, the second anode connection electrode 321b may be electrically connected to the anode of a first light-emitting element that emits the third color light in the first display unit, the third anode connection electrode 321c may be electrically connected to the anode of a first light-emitting element that emits the second color light in the first display unit, and the fourth anode connection electrode 321d may be electrically connected to the anode of another first light-emitting element that emits the third color light in the first display unit.

[0106] In some examples, as Figure 9 shown, the second conductive line 162 of the first conductive layer may include a first portion 162a extending along the first direction X and a second portion 162b extending along the second direction Y. The first portion 162a is connected to the second portion 162b. The length of the second portion 162b along the second direction Y may be greater than the length of one first display unit along the second direction Y. For example, the length of one first display unit along the second direction Y may be about 57 micrometers to 71 micrometers, such as about 64.4 micrometers.

[0107] In some examples, taking the number of first conductive lines connected to the first display unit in each row being less than or equal to 18 as an example for illustration. Since the number and arrangement of the first display units in the first display units L1 to L8 in the first row are roughly the same, the first display unit L1 in the first row is taken as an example for illustration. The first display unit L1 in the first row is electrically connected to 18 first conductive lines 161 located in the first conductive layer, and can also be electrically connected to 16 first conductive lines 163 located in the second conductive layer. In some examples, the first light-emitting elements that emit the third color light in the first display unit L1 in the first row can be electrically connected to the first pixel circuit through the first conductive lines 161 located in the first conductive layer or the first conductive lines 163 located in the second conductive layer. 16 first light-emitting elements that emit the first color light and the second color light near the edge of the first display area can be electrically connected to the first pixel circuit through the first conductive lines 161 located in the first conductive layer or the first conductive lines 163 located in the second conductive layer. For example, 18 first light-emitting elements that emit the third color light in the first display unit L1 in the first row can be respectively electrically connected to 2 first conductive lines 161 located in the first conductive layer and 16 first conductive lines 163 located in the second conductive layer, and 2 first light-emitting elements that emit the third color light near the center of the first display area can be electrically connected to the first pixel circuit through the second conductive lines located in the first conductive layer. 16 first light-emitting elements that emit the first color light and the second color light near the edge of the first display area can be respectively electrically connected to 16 first conductive lines 161 located in the first conductive layer. 4 first light-emitting elements that emit the first color light and the second color light near the center of the first display area can be electrically connected to the first pixel circuit through the second conductive lines located in the first conductive layer. Therefore, the first display unit L1 in the first row needs to be electrically connected to 6 second conductive lines located in the first conductive layer. The first display units L1 to L8 in the first row to the eighth row altogether need 48 second conductive lines located in the first conductive layer. In this example, the first display unit L1 in the first row is electrically connected to 18 first conductive lines 161 located in the first conductive layer, and can also be electrically connected to 16 first conductive lines 163 located in the second conductive layer.

[0108] In some examples, such as Figure 9 , Figure 11A and Figure 11BAs shown, the 36 first light-emitting elements of the first display unit L9 in the ninth row are sequentially numbered in the direction from the edge of the first display area to the center in the first direction X. The 19th to 36th first light-emitting elements in the first display unit L9 in the ninth row can be electrically connected to the first wire 163 located in the second conductive layer, and the 1st to 18th first light-emitting elements can be electrically connected to the first wire 161 located in the first conductive layer. In this example, the first display unit L9 in the ninth row is electrically connected to 18 first wires located in the first conductive layer, and can also be electrically connected to 18 second wires located in the second conductive layer. The connection manner of the first light-emitting elements of the first display units L10 to L12 in the tenth row to the wires is the same as that of the first light-emitting elements of the first display unit L9 in the ninth row, so it will not be elaborated here.

[0109] In some examples, as Figure 9 , Figure 11A and Figure 11B shown, the 32 first light-emitting elements of the first display unit L13 in the thirteenth row are sequentially numbered in the direction from the edge of the first display area to the center in the first direction X. The 15th to 32nd first light-emitting elements in the first display unit L13 in the thirteenth row can be electrically connected to the first wire 163 located in the second conductive layer, and the 1st to 14th first light-emitting elements can be electrically connected to the first wire 161 located in the first conductive layer. The first display unit L13 in the thirteenth row can be electrically connected to 18 first wires located in the second conductive layer, and can also be electrically connected to 14 first wires located in the first conductive layer. In this example, the display unit L13 in the thirteenth row is only electrically connected to 14 first wires located in the first conductive layer. Compared with each of the first display units in the first to twelfth rows being electrically connected to 18 first wires located in the first conductive layer, there is a remaining space for arranging 4 first wires of the first conductive layer in the area where the display unit L13 in the thirteenth row is located. The connection manner of the first light-emitting elements of the first display unit L14 in the fourteenth row to the wires is the same as that of the first light-emitting elements of the first display unit L13 in the thirteenth row, so it will not be elaborated here.

[0110] In some examples, the 28 first light-emitting elements of the first display unit L15 in the fifteenth row are sequentially numbered in the direction from the edge of the first display area to the center in the first direction X. The 11th to 28th first light-emitting elements in the first display unit L15 of the fifteenth row can be electrically connected to the first wire 163 located in the second conductive layer, and the 1st to 10th first light-emitting elements can be electrically connected to the first wire 161 located in the first conductive layer. The first display unit L15 in the fifteenth row can be electrically connected to 18 first wires located in the second conductive layer, and can also be electrically connected to 10 first wires located in the first conductive layer. In this example, the first display unit L15 in the fifteenth row is only electrically connected to 10 first wires located in the first conductive layer. Compared with the first display units in the first to twelfth rows, each of which is electrically connected to 18 first wires located in the first conductive layer, there is a remaining space for arranging 8 first wires of the first conductive layer in the area where the first display unit L15 in the fifteenth row is located. The connection manner of the first light-emitting elements of the first display unit L16 in the sixteenth row to the wires is the same as that of the first light-emitting elements of the first display unit L15 in the fifteenth row, so it will not be elaborated here.

[0111] In some examples, such as Figure 10 , Figure 12A and Figure 12B shown, the 24 first light-emitting elements of the first display unit L17 in the seventeenth row are sequentially numbered in the direction from the edge of the first display area to the center in the first direction X. The 7th to 24th first light-emitting elements in the first display unit L17 of the seventeenth row can be electrically connected to the first wire 163 located in the second conductive layer, and the 1st to 6th first light-emitting elements can be electrically connected to the first wire 161 located in the first conductive layer. The first display unit L17 in the seventeenth row can be electrically connected to 18 first wires located in the second conductive layer, and can also be electrically connected to 6 first wires located in the first conductive layer. In this example, the first display unit L17 in the seventeenth row is only electrically connected to 6 first wires located in the first conductive layer. Compared with the first display units in the first to twelfth rows, each of which is electrically connected to 18 first wires located in the first conductive layer, there is a remaining space for arranging 12 first wires of the first conductive layer in the area where the first display unit L17 in the seventeenth row is located. The connection manner of the first light-emitting elements of the first display unit L18 in the eighteenth row to the wires is the same as that of the first light-emitting elements of the first display unit L17 in the seventeenth row, so it will not be elaborated here.

[0112] In some examples, such as Figure 10 , Figure 12A and Figure 12BAs shown, the 20 first light-emitting elements of the first display unit L19 in the nineteenth row are sequentially numbered in the direction from the edge of the first display area to the center in the first direction X. The third to the twentieth first light-emitting elements in the first display unit L19 of the nineteenth row can be electrically connected to the first wire 163 located in the second conductive layer, and the first to the second first light-emitting elements can be electrically connected to the first wire 161 located in the first conductive layer. The first display unit L17 in the nineteenth row can be electrically connected to 18 first wires located in the second conductive layer, and can also be electrically connected to 2 first wires located in the first conductive layer. In this example, the first display unit L19 in the nineteenth row is only electrically connected to 2 first wires located in the first conductive layer. Compared with the first display units in the first to the twelfth rows, each of which is electrically connected to 18 first wires located in the first conductive layer, there is a remaining space for arranging 16 first wires of the first conductive layer in the area where the first display unit L19 in the nineteenth row is located. The connection manner of the first light-emitting elements of the first display unit L20 in the twentieth row to the wires is the same as that of the first light-emitting elements of the first display unit L19 in the nineteenth row, so it will not be elaborated here.

[0113] In some examples, as Figures 9 to 12B shown, the first wires 161 of the first conductive layer electrically connected to the first display unit in any row can be located on opposite sides of the first display unit in that row in the second direction Y. The first wires 163 of the second conductive layer electrically connected to the first display unit in any row can be located on opposite sides of the first display unit in that row in the second direction Y. In this example, by arranging the first wires on opposite sides of a row of first display units in the second direction Y, it is beneficial to the arrangement of the first wires and can avoid an excessive length of the secondary part of the first wires extending in the second direction.

[0114] In some examples, as Figure 9 and Figure 11A shown, the remaining spaces of 4 first wires of the first conductive layer in the area where the first display unit L13 in the thirteenth row is located (i.e., the spaces not occupied by the first wires of the first conductive layer), the remaining spaces of 4 first wires of the first conductive layer in the area where the first display unit L14 in the fourteenth row is located, the remaining spaces of 8 first wires of the first conductive layer in the area where the first display unit L15 in the fifteenth row is located, the remaining spaces of 8 first wires of the first conductive layer in the area where the first display unit L16 in the sixteenth row is located, the remaining spaces of 12 first wires of the first conductive layer in the area where the first display unit L17 in the seventeenth row is located, the remaining spaces of 12 first wires of the first conductive layer in the area where the first display unit L18 in the eighteenth row is located, the remaining spaces of 16 first wires of the first conductive layer in the area where the first display unit L19 in the nineteenth row is located, and the remaining spaces of 16 first wires of the first conductive layer in the area where the first display unit L20 in the twentieth row is located can be used to arrange the second wires.

[0115] In some examples, the first parts of the 48 second conductive lines required in total for the first display units L1 to L8 in the first row can be arranged in the remaining space of the first conductive line described above. For example, the first parts of the 48 second conductive lines required in total for the first display units L1 to L8 in the first row can successively occupy the remaining space of 4 first conductive lines in the area of the first display unit L13 in the thirteenth row, the remaining space of 4 first conductive lines in the area of the first display unit L14 in the fourteenth row, the remaining space of 8 first conductive lines in the area of the first display unit L15 in the fifteenth row, the remaining space of 8 first conductive lines in the area of the first display unit L16 in the sixteenth row, and the remaining space of 8 first conductive lines in the area of the first display unit L17 in the seventeenth row. However, this embodiment is not limited thereto. In other examples, the first parts 162a of the two second conductive lines 162 electrically connected to the first display unit L1 in the first row can be arranged in the remaining space of the two first conductive lines in the area of the first display unit L13 in the thirteenth row. For example, the first parts 162a of the two second conductive lines 162 can be arranged on the opposite sides of the first display unit L13 in the thirteenth row along the second direction Y. The first parts 162a of the other two second conductive lines 162 electrically connected to the first display unit L1 in the first row can be arranged in the remaining space of the two first conductive lines in the area of the first display unit L14 in the fourteenth row. Similarly, the remaining space of 4 first conductive lines in the area of the first display unit L15 in the fifteenth row, the remaining space of 4 first conductive lines in the area of the first display unit L16 in the sixteenth row, the remaining space of 6 first conductive lines in the area of the first display unit L17 in the seventeenth row, the remaining space of 6 first conductive lines in the area of the first display unit L18 in the eighteenth row, and the remaining space of 8 first conductive lines in the area of the first display unit L19 in the nineteenth row can be successively occupied.

[0116] In some examples, the second parts 162b of multiple second conductive lines 162 can be adjacent, or can be arranged at intervals in the first direction X from the anode connection electrode. However, this embodiment is not limited thereto.

[0117] In some examples, Table 1 shows the resistances of the 48 second conductive lines in this embodiment and the 48 second conductive lines in the comparative method (unit: ohm). In the comparative method, in one conductive layer, after the first conductive lines are concentratedly arranged in the second direction, the first parts of the second conductive lines are then concentratedly arranged. This embodiment adopts an arrangement method in which the first parts of the second conductive lines are interspersed between the first conductive lines.

[0118] Table 1

[0119]

[0120]

[0121] As can be seen from Table 1, the first part of the second conductive line of the display substrate provided in this embodiment can be interspersed between the first conductive lines of the same conductive layer in the second direction, which can effectively reduce the length of the second part of the second conductive line, thereby reducing the length of the second conductive line, reducing the length difference between the second conductive lines, and being beneficial to improving the display effect.

[0122] At least one embodiment of the present disclosure further provides a display device, including the display substrate as described above.

[0123] Figure 13 It is a schematic diagram of the display device of at least one embodiment of the present disclosure. As Figure 13 shown, this embodiment provides a display device, including: a display substrate 91 and a photosensor 92 located on the light-emitting side of the display structure layer away from the display substrate 91. The photosensor 92 is located on the non-display surface side of the display substrate 91. The orthographic projection of the photosensor 92 on the display substrate 91 overlaps with the first display area A1.

[0124] In some exemplary embodiments, the display substrate 91 can be a flexible OLED display substrate, a QLED display substrate, a Micro-LED display substrate, or a Mini-LED display substrate. The display device can be a product with an image (including static images or dynamic images, where the dynamic image can be a video) display function. For example, the display device can be: a monitor, a television, a billboard, a digital photo frame, a laser printer with a display function, a telephone, a mobile phone, a painting screen, a personal digital assistant (PDA), a digital camera, a portable video camera, a viewfinder, a navigator, a vehicle, a large-area wall, an information query device (such as a business query device in departments such as e-government, banks, hospitals, and power), a monitor, etc. of any one of the products. Another example, the display device can also be a microdisplay, any one of the products such as a VR device or an AR device including the microdisplay.

[0125] The drawings in the present disclosure only relate to the structures involved in the present disclosure, and other structures can refer to the general design. Without conflict, the embodiments of the present disclosure, that is, the features in the embodiments, can be combined with each other to obtain new embodiments. Those of ordinary skill in the art should understand that the technical solutions of the present disclosure can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present disclosure, and should all be covered by the scope of the claims of the present disclosure.

Claims

1. A display substrate, characterized in that, comprising: a substrate including a display area, the display area including a first display area and a second display area that do not overlap with each other, and the second display area being located on at least one side of the first display area; a circuit structure layer located on one side of the substrate and including a plurality of first pixel circuits located in the second display area; a light-emitting structure layer located on a side of the circuit structure layer away from the substrate and including a plurality of first display units located in the first display area, and at least one first display unit including: a plurality of first light-emitting elements that emit light of different colors; a plurality of conductive layers located between the circuit structure layer and the light-emitting structure layer and including a plurality of conductive lines; at least one first pixel circuit among the plurality of first pixel circuits is electrically connected to at least one first light-emitting element through at least one conductive line, and the at least one first pixel circuit is configured to drive the at least one first light-emitting element to emit light; the plurality of conductive lines of at least one conductive layer include: a plurality of first conductive lines and a plurality of second conductive lines; the first conductive lines extend in a first direction, and the second conductive lines at least include a first portion extending in the first direction and a second portion extending in a second direction; in the second direction, the first portions of the plurality of second conductive lines and the plurality of first conductive lines are alternately arranged; the first direction intersects with the second direction; the plurality of conductive layers include: a first conductive layer and a second conductive layer sequentially arranged along a direction away from the substrate; the first conductive layer includes a plurality of first conductive lines and a plurality of second conductive lines, and the second conductive layer includes a plurality of first conductive lines; the plurality of first display units arranged in the first direction are one row of first display units; the first display area includes: N rows of first display units arranged from the center to the edge of the first display area in the second direction, and the number of first display units included in the i-th row of first display units is greater than or equal to the number of first display units included in the (i + 1)-th row of first display units, where i is an integer greater than 0 and less than N; the i-th row of first display units is electrically connected to the second conductive lines of the first conductive layer, and the first portions of the second conductive lines to which the i-th row of first display units is electrically connected are adjacent to the first conductive lines of the first conductive layer to which the j-th row of first display units is electrically connected, and j is an integer greater than i and less than or equal to N; in the i-th row of first display units, the first light-emitting element close to the center of the first display area is electrically connected to the first pixel circuit through the second conductive line located in the first conductive layer, and the first light-emitting element close to the edge of the first display area is electrically connected to the first pixel circuit through the first conductive line located in the first conductive layer; in the j-th row of first display units, the first light-emitting element close to the center of the first display area is electrically connected to the first pixel circuit through the first conductive line located in the second conductive layer, and the first light-emitting element close to the edge of the first display area is electrically connected to the first pixel circuit through the first conductive line located in the first conductive layer.

2. The display substrate according to claim 1, characterized in that, In the direction from the center to the edge of the first display area along the second direction, the number of first conductive lines of the multi - row first display units in the first display area that are electrically connected and located in the same conductive layer gradually decreases; the first part of the second conductive line of the conductive layer is disposed at the position vacated due to the decrease in the number of the first conductive lines.

3. The display substrate according to claim 2, wherein, in the second direction, the number of first display units in at least two adjacent rows of first display units is different.

4. The display substrate according to claim 2, wherein, in a row of first display units, when adjacent first light - emitting elements are electrically connected to different conductive lines located in the same conductive layer, the conductive lines to which the adjacent first light - emitting elements are electrically connected are located on opposite sides of the anode connection electrode to which the first light - emitting elements in this row of first display units are electrically connected in the second direction.

5. The display substrate according to claim 1, wherein, the length of the second part of the second conductive line along the second direction is greater than the length of one first display unit along the second direction.

6. The display substrate according to claim 1, wherein, the at least one first display unit includes: a first light - emitting element that emits first - colored light, a first light - emitting element that emits second - colored light, and two first light - emitting elements that emit third - colored light.

7. The display substrate according to claim 1, wherein, the number of first conductive lines of the second conductive layer to which the i - th row of first display units is electrically connected is the same as the number of first conductive lines of the second conductive layer to which the (i + 1) - th row of first display units is electrically connected; the number of first conductive lines of the first conductive layer to which the i - th row of first display units is electrically connected is greater than or equal to the number of first conductive lines of the first conductive layer to which the (i + 1) - th row of first display units is electrically connected.

8. The display substrate according to claim 1, wherein, the circuit structure layer further includes: a plurality of second pixel circuits located in the second display area; the light - emitting structure layer further includes: a plurality of second light - emitting elements located in the second display area; at least one second pixel circuit among the plurality of second pixel circuits is electrically connected to at least one second light - emitting element among the plurality of second light - emitting elements, and the at least one second pixel circuit is configured to drive the at least one second light - emitting element to emit light.

9. A display device, wherein, it includes the display substrate according to any one of claims 1 to 8.

10. The display device according to claim 9, wherein, the display device further includes: a sensor located on the non - display surface side of the display substrate, and the orthographic projection of the sensor on the display substrate overlaps with the first display area of the display substrate.

Images