Display substrate and display device

Abstract

A display substrate and a display device. The display substrate has a first side and a second side, and includes first to third display areas. The first display area includes a first pixel repeating unit, and allows light from the first side to be at least partially transmitted to the second side, the second display area includes a second pixel repeating unit and a fourth pixel repeating unit, and the third display area includes a third pixel repeating unit. The center line connecting each first pixel repeating unit and the corresponding fourth pixel repeating unit is roughly parallel to the first direction, and each first pixel repeating unit is electrically connected to the corresponding fourth pixel repeating unit through t transparent connecting wires. The pitch of the first and second pixel repeating units in the second direction is b1, the pitch of the third pixel repeating unit in the second direction is b2, the pitch of the transparent connecting wire in the second direction is D, and the maximum number s of the first pixel repeating units included in the first display area in the first direction satisfies s≤2*Floor(b1 / (D*t)).

Description

Technical Field

[0001] Embodiments of the present disclosure relate to a display substrate and a display device. Background Art

[0002] With the development of display electronic products such as mobile phones, the increase in the screen-to-body ratio of display screens has become a product trend, and the functional components that are essential for mobile phones, such as front cameras, have become a major factor restricting the increase in the screen-to-body ratio. In response to this problem, the industry has proposed a solution called "under-screen camera" that combines the camera and the display substrate into a display device. In such a solution, the display device includes a display substrate and a camera located under the display substrate. The area of ​​the display device with the under-screen camera can emit light and display like other areas, and at the same time have a camera function. Summary of the invention

[0003] At least one embodiment of the present disclosure provides a display substrate, having a first side for display and a second side opposite to the first side, and including a first display area, a second display area and a third display area; wherein the first display area includes a plurality of first pixel repeating units arranged in an array along a first direction and a second direction, each of the first pixel repeating units includes a first light-emitting element, and the first display area includes a light-transmitting area that allows light to be transmitted between the first side and the second side of the display substrate; the second display area includes a plurality of second pixel repeating units and a plurality of fourth pixel repeating units arranged in an array along the first direction and the second direction, each of the second pixel repeating units includes a second pixel circuit and a second light-emitting element, the second pixel circuit and the second light-emitting element are electrically connected, and each of the fourth pixel repeating units includes a first pixel circuit; the third display area includes a plurality of third pixel repeating units arranged in an array along the first direction and the second direction, each of the third pixel repeating units includes a third pixel circuit and a third light-emitting element, and the third pixel circuit and the third light-emitting element are electrically connected; the third display area at least partially surrounds the second display area, The second display area at least partially surrounds the first display area, and the second display area is axially symmetric about the center line of the first display area in the second direction; each of the first pixel repeating units corresponds to a fourth pixel repeating unit, and the center line connecting each of the first pixel repeating unit and the corresponding fourth pixel repeating unit is substantially parallel to the first direction, and the first light-emitting element in each of the first pixel repeating units is electrically connected to the first pixel circuit in the corresponding fourth pixel repeating unit through t transparent connecting wires, t is a positive integer and t≥1; the pitch of the first pixel repeating unit in the second direction is b1, the pitch of the second pixel repeating unit in the second direction is b1, and the pitch of the third pixel repeating unit in the second direction is b2, wherein b1=n*b2, n is a positive integer and n≥2; wherein the pitch of the transparent connecting wires in the second direction is D, and the maximum number s of the first pixel repeating units included in the first display area in the first direction satisfies: s≤2*Floor(b1 / (D*t)), wherein Floor() represents a floor function.

[0004] For example, in the display substrate provided in some embodiments of the present disclosure, the pitch of the first pixel repetition unit in the first direction is a1, the pitch of the second pixel repetition unit in the first direction is a1, and the pitch of the third pixel repetition unit in the first direction is a2, wherein a1=m*a2, m is a positive integer and m≥2, and the size L1 of the first display area in the first direction approximately satisfies: L1=s*a1.

[0005] For example, in the display substrate provided in some embodiments of the present disclosure, the size of the first display area in the second direction is substantially equal to the size of the first display area in the first direction.

[0006] For example, in the display substrate provided in some embodiments of the present disclosure, the first display area includes a circular display area and a ring-shaped routing area surrounding the circular display area; a gate line for driving the first light-emitting element in each row of the first pixel repetition unit in the first direction is electrically connected to the first pixel circuit in the corresponding fourth pixel repetition unit in the same row in the first direction, at least a portion of the gate line extends along the first direction, at least another portion of the gate line is located in the ring-shaped routing area, and the gate line does not pass through the circular display area; a data line for driving the first light-emitting element in each column of the first pixel repetition unit in the second direction is electrically connected to the first pixel circuit in the corresponding fourth pixel repetition unit in a certain column in the second direction, at least a portion of the data line extends along the second direction, at least another portion of the data line is located in the ring-shaped routing area, and the data line does not pass through the circular display area; the gate line and the data line are located in different layers.

[0007] For example, in the display substrate provided in some embodiments of the present disclosure, the number of gate lines corresponding to each of the third pixel repetition units is the same as the number of gate lines corresponding to each of the first pixel repetition units, the number of gate lines corresponding to each of the first pixel repetition units is x, the pitch of the gate lines in the annular routing area is c1, and the total radial width of the gate lines in the annular routing area is approximately x*c1*Floor(L1 / b2) / 2; the number of data lines corresponding to each of the first pixel repetition units is y, the pitch of the data lines in the annular routing area is c2, and the total radial width of the data lines in the annular routing area is approximately y*c2*s / 2.

[0008] For example, in the display substrate provided in some embodiments of the present disclosure, the orthographic projection of the main part of the gate line in the annular routing area extending in the circumferential direction on the display substrate does not overlap with the orthographic projection of the main part of the data line in the annular routing area extending in the circumferential direction on the display substrate, and the radial width of the annular routing area is approximately x*c1*Floor(L1 / b2) / 2+y*c2*s / 2.

[0009] For example, in the display substrate provided in some embodiments of the present disclosure, the diameter of the circular display area is approximately s*a1-x*c1*Floor(L1 / b2)-y*c2*s / 2.

[0010] For example, in the display substrate provided in some embodiments of the present disclosure, the orthographic projection of the circumferentially extending main portion of the gate line in the annular routing area on the display substrate at least partially overlaps with the orthographic projection of the circumferentially extending main portion of the data line in the annular routing area on the display substrate, and the radial width of the annular routing area is approximately max(x*c1*Floor(L1 / b2) / 2,y*c2*s / 2), where max() is the maximum value function.

[0011] For example, in the display substrate provided in some embodiments of the present disclosure, the diameter of the circular display area is approximately s*a1-max(x*c1*Floor(L1 / b2),y*c2*s).

[0012] For example, in the display substrate provided in some embodiments of the present disclosure, the dimension L2 of the second display area in the first direction substantially satisfies: L2=(s+2)*a1.

[0013] For example, in the display substrate provided in some embodiments of the present disclosure, a size of the second display area in the second direction is substantially equal to a size of the first display area in the second direction.

[0014] For example, in the display substrate provided in some embodiments of the present disclosure, the size of the second display area in the second direction is greater than the size of the first display area in the second direction, and the difference between the size of the second display area in the second direction and the size of the first display area in the second direction is approximately equal to 4b1.

[0015] For example, in the display substrate provided in some embodiments of the present disclosure, the pitch of the fourth pixel repeating unit in the first direction is equal to the pitch of the second pixel repeating unit in the first direction.

[0016] For example, in the display substrate provided in some embodiments of the present disclosure, each of the first pixel repetition units includes 8 first light-emitting elements arranged in a GGRB pixel arrangement manner, t=8, the number of gate lines corresponding to each of the first pixel repetition units is 4, and the number of data lines corresponding to each of the first pixel repetition units is 4.

[0017] For example, in the display substrate provided in some embodiments of the present disclosure, each of the first pixel repetition units includes 12 first light-emitting elements arranged in an RGB pixel arrangement manner, t=12, the number of gate lines corresponding to each of the first pixel repetition units is 2, and the number of data lines corresponding to each of the first pixel repetition units is 6.

[0018] For example, in the display substrate provided in some embodiments of the present disclosure, the first direction and the second direction are perpendicular to each other.

[0019] For example, in the display substrate provided in some embodiments of the present disclosure, the display substrate includes an anode layer, a source-drain electrode layer, and a transparent connecting wiring layer located between the anode layer and the source-drain electrode layer, the anode of the first light-emitting element is located in the anode layer, the transparent connecting wiring is located in the transparent connecting wiring layer, the first pixel circuit includes a thin film transistor, the thin film transistor includes a source and a drain, at least one of the source and the drain of the thin film transistor is located in the source-drain metal layer, and the anode of the first light-emitting element is electrically connected to at least one of the source and the drain of the thin film transistor through the transparent connecting wiring.

[0020] For example, in the display substrate provided in some embodiments of the present disclosure, the anode of the first light-emitting element is a transparent electrode.

[0021] At least one embodiment of the present disclosure further provides a display device, comprising the display substrate provided by any embodiment of the present disclosure.

[0022] For example, the display device provided by some embodiments of the present disclosure further includes a sensor, wherein the sensor is arranged on the second side of the display substrate, the orthographic projection of the sensor on the display substrate at least partially overlaps with the first display area, and the sensor is configured to receive light from the first side. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present disclosure, but are not intended to limit the present disclosure.

[0024] Figure 1A is a schematic plan view of a display substrate;

[0025] Figure 1B It is a partial enlarged schematic diagram of a display substrate;

[0026] Figure 2 for Figure 1B A schematic cross-sectional view of a display substrate along line AA;

[0027] Figure 3 A schematic plan view of a display substrate provided in at least one embodiment of the present disclosure;

[0028] Figure 4 A partially enlarged schematic diagram of a display substrate provided by at least one embodiment of the present disclosure;

[0029] Figure 5AA schematic plan view of a first pixel repeating unit provided in at least one embodiment of the present disclosure;

[0030] Figure 5B A schematic plan view of another first pixel repeating unit provided for at least one embodiment of the present disclosure;

[0031] Figure 6 A schematic block diagram of a display device provided for at least one embodiment of the present disclosure; and

[0032] Figure 7 A cross-sectional schematic diagram of a display device provided in at least one embodiment of the present disclosure. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0034] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. In order to keep the following description of the embodiments of the present disclosure clear and concise, the present disclosure omits the detailed description of some known functions and known components.

[0035] In the design of the "under-screen camera", in order to allow more light to enter the camera located under the display substrate, the display substrate can be designed to have a high pixel density area and a low pixel density area, and the camera is set under the low pixel density area that allows more light to pass through.

[0036] For example, Figure 1A shows a schematic plan view of a display substrate, Figure 1B for Figure 1AA partial enlarged schematic diagram of a display substrate is shown. Figure 2 Shows Figure 1B A schematic cross-sectional view of the display substrate along line AA in FIG. Figure 1A , Figure 1B and Figure 2 As shown, the display area of ​​the display substrate includes a light-transmitting display area 1 , a transition display area 2 and a main display area 3 .

[0037] For example, the main display area 3 is the main display area and has a higher resolution (PPI, Pixel Per Inch), that is, the main display area 3 is densely arranged with sub-pixels for display. Each sub-pixel includes a light-emitting element and a pixel circuit that drives the light-emitting element. The light-transmitting display area 1 can allow light incident from the display side of the display substrate to pass through the display substrate and reach the back side of the display substrate, thereby facilitating the normal operation of components such as sensors located on the back side of the display substrate. Of course, the light-transmitting display area 1 can also allow light emitted from the back side of the display substrate to pass through the display substrate and display the display side of the substrate. The light-transmitting display area 1 and the transition display area 2 also include multiple sub-pixels for display. However, since the pixel circuit of the sub-pixel is generally not light-transmitting, in order to improve the light transmittance of the light-transmitting display area 1, the light-emitting element of the sub-pixel in the light-transmitting display area 1 can be physically separated from the pixel circuit that drives the light-emitting element. For example, the sub-pixel in the light-transmitting display area 1 (for example Figure 1B The pixel circuit of the transition display area 2 (shown as a box in the middle light-transmitting display area 1) can be set in the transition display area 2, as shown by the gray box in the transition display area 2, thus occupying part of the space of the transition display area 2; and the remaining space of the transition display area 2 is used to set the sub-pixels of the transition display area 2, for example, each white box in the transition display area 2 represents a sub-pixel. At this time, the sub-pixels in the transition display area 2 ( Figure 1B The white box in the figure) and the pixel circuit of the sub-pixel in the light-transmitting display area 1 ( Figure 1B The gray boxes in the figure are arranged in an array in the transition display area 2. Therefore, the resolution of the light-transmitting display area 1 and the transition display area 2 is lower than that of the main display area 3, that is, the density of the sub-pixels arranged in the light-transmitting display area 1 and the transition display area 2 for display is lower than that of the sub-pixels in the main display area 3.

[0038] like Figure 2 As shown, the light emitting element 4 of a sub-pixel in the light-transmitting display area 1 includes an anode 4A, a cathode 4C, and a light emitting layer 4B between the anode 4A and the cathode 4C, and the anode 4A is connected to the pixel circuit 5 in the transition display area 2 through a wiring 6. For example, the pixel circuit 5 includes a thin film transistor (T), a capacitor (C) and other structures, and the pixel circuit 5 can be implemented as a commonly used 2T1C, 4T1C, 4T2C, 7T1C and other pixel driving circuits.

[0039] In order to improve the light transmittance of the light-transmitting display area 1, the above-mentioned wiring 6 is usually a transparent connecting wiring, or at least the portion of the wiring 6 located in the light-transmitting display area 1 is transparent (in this case, even if the rest of the wiring 6 is opaque, the wiring 6 can be considered as a transparent connecting wiring in the present disclosure). For example, the transparent connecting wiring can be made of transparent conductive materials, such as transparent metal oxides, such as indium tin oxide (ITO), etc., to have good light transmittance. It should be noted that in the present disclosure, "transparency" and "light transmittance" only require a certain light transmittance, such as a light transmittance greater than 0, and do not require a light transmittance of 100%. For example, generally, if the light transmittance of any structure or region is greater than a certain value (for example, 40%, 45%, 50%, etc.), the structure or region can be considered "transparent" and "light transmittance".

[0040] In the actual process, the minimum width of the routing 6 is limited (for example, 1.5μm to 2.5μm); when multiple routings 6 are densely arranged, the minimum spacing between adjacent routings 6 is also limited (for example, 1.5μm to 2.5μm); thus, the pitch of the routing 6 is also limited (for example, 3μm to 5μm). Due to the limitation of the pitch of the routing 6, the size of the light-transmitting display area 1 and the resolution of the light-transmitting display area 1 are mutually constrained. It should be noted that in the present disclosure, "pitch" refers to the center distance between adjacent similar structures.

[0041] At least one embodiment of the present disclosure provides a display substrate. The display substrate has a first side for display and a second side opposite to the first side, and includes a first display area, a second display area, and a third display area. The first display area includes a plurality of first pixel repeating units arranged in an array along a first direction and a second direction, each first pixel repeating unit includes a first light-emitting element, and the first display area includes a light-transmitting area that allows light to be transmitted between the first side and the second side of the display substrate; the second display area includes a plurality of second pixel repeating units and a plurality of fourth pixel repeating units arranged in an array along the first direction and the second direction, each second pixel repeating unit includes a second pixel circuit and a second light-emitting element, the second pixel circuit and the second light-emitting element are electrically connected, and each fourth pixel repeating unit includes a first pixel circuit; the third display area includes a plurality of third pixel repeating units arranged in an array along the first direction and the second direction, each third pixel repeating unit includes a third pixel circuit and a third light-emitting element, and the third pixel circuit and the third light-emitting element are electrically connected; the third display area at least partially surrounds the second display area, the second display area at least partially surrounds the first display area, and the second display area is about the first display area. The center line of the display area in the second direction is axially symmetric; each first pixel repeating unit corresponds to a fourth pixel repeating unit, and the center line connecting each first pixel repeating unit and the corresponding fourth pixel repeating unit is roughly parallel to the first direction, and the first light-emitting element in each first pixel repeating unit is electrically connected to the first pixel circuit in the corresponding fourth pixel repeating unit through t transparent connecting wires, t is a positive integer and t≥1; the pitch of the first pixel repeating unit in the second direction is b1, the pitch of the second pixel repeating unit in the second direction is b1, and the pitch of the third pixel repeating unit in the second direction is b2, wherein b1=n*b2, n is a positive integer and n≥2; the pitch of the transparent connecting wires in the second direction is D, and the maximum number s of the first pixel repeating units included in the first display area in the first direction satisfies: s≤2*Floor(b1 / ((D*t))), wherein Floor() represents a floor rounding function.

[0042] Some embodiments of the present disclosure also provide a display device corresponding to the above-mentioned display substrate.

[0043] The display substrate provided by the embodiments of the present disclosure can optimize the arrangement of transparent connecting lines and the arrangement of the first light-emitting elements in the first display area, thereby improving the display effect of the first display area and improving the light transmittance of the first display area, thereby helping to improve the performance of the full-screen display device.

[0044] Some embodiments and examples of the present disclosure are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementations described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

[0045] At least one embodiment of the present disclosure provides a display substrate. Figure 3 FIG. 2 shows a schematic plan view of the display substrate. Figure 3 As shown, the display substrate has a first side for display (i.e., display side) and a second side opposite to the first side (i.e., non-display side). The display substrate includes a display area, and the display area includes a first display area 10 (marked by a dotted line frame), a second display area 20, and a third display area 30.

[0046] For example, Figure 3 As shown, the third display area at least partially surrounds the second display area 20, the second display area 20 at least partially surrounds the first display area 10, and the second display area 20 is axisymmetric about the center line of the first display area 10 in the second direction Y. For example, Figure 3 As shown, the second display area 20 is symmetrically distributed on both sides of the first display area 10 in the first direction X. For example, the first direction X and the second direction Y are perpendicular to each other. The embodiments of the present disclosure include but are not limited to this.

[0047] For example, Figure 3 As shown, the first display area 10 may include a circular display area 10A and a ring-shaped wiring area 10B surrounding the circular display area 10A. Figure 3 In the figure, the circular wiring area 10B is marked by a black circle, and the circular display area 10A is marked by a white circle in the circular wiring area 10B. For example, the first display area 10 allows light from the first side to at least partially transmit to the second side; for example, in some embodiments, at least the circular display area 10A allows light from the first side to at least partially transmit to the second side, that is, at least the circular display area 10A is a transparent display area, and light can pass from the display side of the display substrate through the transparent display area to the non-display side. For example, sensors such as cameras and infrared sensing devices can be set on the non-display side, and the sensors can work using the light transmitted to the non-display side. In some embodiments, it can also be configured that light emitted by a device on the non-display side of the display substrate is transmitted to the display side of the display substrate through a transparent display area (for example, the circular display area 10A).

[0048] Figure 4 for Figure 3 FIG. 1 is a partial enlarged schematic diagram of a display substrate shown in FIG. Figure 4 As shown, the first display area 10 includes a plurality of first pixel repeating units Q1 arranged in an array along the first direction X and the second direction Y, the second display area 20 includes a plurality of second pixel repeating units Q2 and a plurality of fourth pixel repeating units Q4 arranged in an array along the first direction X and the second direction Y, and the third display area 30 includes a plurality of third pixel repeating units Q3 arranged in an array along the first direction X and the second direction Y.

[0049] For example, the first pixel repeating unit Q1 includes the first light emitting element but does not include the first pixel circuit for driving the first light emitting element. For example, there is no pixel circuit in the first display area 10, and the first pixel circuit for driving the first light emitting element is arranged in the second display area 20, so that the metal coverage area in the first display area 10 can be reduced and the light transmittance of the first display area 10 can be improved.

[0050] For example, the second pixel repeating unit Q2 includes a second pixel circuit and a second light-emitting element, the second pixel circuit and the second light-emitting element are electrically connected, and the second pixel circuit is used to drive the second light-emitting element. For example, in some examples, the second pixel circuit and the second light-emitting element in each pixel repeating unit Q2 are one-to-one corresponding. It should be noted that the embodiments of the present disclosure do not limit the specific number of second pixel circuits and second light-emitting elements included in each pixel repeating unit Q2.

[0051] For example, the third pixel repeating unit Q3 includes a third pixel circuit and a third light-emitting element, the third pixel circuit and the third light-emitting element are electrically connected, and the third pixel circuit is used to drive the third light-emitting element. For example, in some examples, the third pixel circuit and the third light-emitting element in each pixel repeating unit Q3 are one-to-one corresponding. It should be noted that the embodiments of the present disclosure do not limit the specific number of the third pixel circuit and the third light-emitting element included in each pixel repeating unit Q3.

[0052] For example, the fourth pixel repeating unit Q4 includes a first pixel circuit, and the first pixel circuit is used to drive the first light-emitting element. For example, each first pixel repeating unit Q1 corresponds to a fourth pixel repeating unit Q4, and the center line connecting each first pixel repeating unit Q1 and the corresponding fourth pixel repeating unit Q4 is substantially parallel to the first direction X, that is, the light-emitting elements in each row of the first pixel repeating units Q1 in the first direction X are driven by the first pixel circuit in the same row of the fourth pixel repeating units in the first direction X.

[0053] For example, Figure 4 As shown, the first light-emitting element in each first pixel repeating unit Q1 is electrically connected to the first pixel circuit in the corresponding fourth pixel repeating unit Q4 through t transparent connecting wires TL, where t is a positive integer and t≥1. For example, the number of first light-emitting elements in each first pixel repeating unit Q1 is t, and the number of first pixel circuits in the corresponding fourth pixel repeating unit Q4 is also t, so that each first light-emitting element is electrically connected to a corresponding first pixel circuit through one transparent connecting wire TL. For convenience and simplicity, Figure 4 In FIG. 1 , the t transparent connection lines TL are indicated by a dotted line.

[0054] For example, Figure 4As shown, the first pixel repeating units Q1 in the first display area 10 are arranged uniformly, so that the first display area 10 can achieve uniform light emission and display. Figure 4 As shown, the pitch of the first pixel repeating unit Q1 in the first direction X is a1, and the pitch in the second direction Y is b1.

[0055] For example, Figure 4 As shown, the second pixel repeating units Q2 in the second display area 20 are arranged uniformly, so that the second display area 20 can achieve uniform light emission and display. Figure 4 As shown, the pitch of the second pixel repeating unit Q2 in the first direction X is a1, and the pitch in the second direction Y is b1, that is, overall, the first pixel repeating unit Q1 and the second pixel repeating unit Q2 are evenly arranged in the first display area 10 and the second display area 20, so that the first display area 10 and the second display area 20 can achieve overall uniform light emission and display.

[0056] For example, in some examples, such as Figure 4 As shown, the fourth pixel repeating unit Q4 in the second display area 20 is evenly arranged, so that the arrangement of the wiring (including the transparent connection wiring TL and the subsequent gate line GL and data line DL, etc.) can be optimized. For example, the pitch of the fourth pixel repeating unit Q4 in the first direction X can be equal to the pitch of the second pixel repeating unit Q2 in the first direction X, and the pitch in the second direction Y can be equal to the pitch of the second pixel repeating unit Q2 in the second direction Y, that is, the pitch of the fourth pixel repeating unit Q4 in the first direction X can also be a1, and the pitch in the second direction Y can also be b1. It should be noted that in other examples, the fourth pixel repeating unit Q4 can also be non-uniformly arranged in the second display area 20, and the embodiments of the present disclosure are not limited to this.

[0057] For example, Figure 4 As shown, the third pixel repeating units Q3 in the third display area 30 are arranged uniformly, so that the third display area 30 can achieve uniform light emission and display. Figure 4 As shown, the pitch of the third pixel repeating unit Q3 in the first direction X is a2, and the pitch in the second direction Y is b2.

[0058] For example, a1=m*a2, m is a positive integer and m≥2; b1=n*b2, n is a positive integer and n≥2. In this case, the third display area 30 has a higher resolution, while the first display area 10 and the second display area 20 have a lower resolution. For example, as shown in the figure, compared with the third display area 30, the first display area 10 and the second display area 20 have a reduced number of pixel repeating units (as shown in the gray box). Figure 4Only the case of m=3 and n=3 is shown, but this should not be considered as a limitation to the embodiments of the present disclosure.

[0059] For example, Figure 4 As shown, the main part of the transparent connection line TL is substantially parallel to the first direction X, so as to electrically connect the first light-emitting element (located in the first pixel repeating unit Q1 in the first display area 10) and the first pixel circuit (located in the fourth pixel repeating unit Q4 in the second display area 20) in the same row in the first direction X. For example, when the transparent connection lines TL are densely arranged, the pitch of the main part of the transparent connection lines TL in the second direction Y is D, that is, the pitch of the transparent connection lines TL in the second direction Y is D, for example, the value range of D is generally 3μm to 5μm, and the embodiments of the present disclosure include but are not limited to this.

[0060] For example, in the display substrate provided by the embodiment of the present disclosure, the maximum number s of the first pixel repeating units Q1 included in the first display area 10 in the first direction X satisfies:

[0061] s≤2*Floor(b1 / (D*t)),

[0062] Wherein, Floor() represents a floor rounding function. Thus, when b1, D, and t can be predetermined according to a design solution, the allowable size of the first display area 10 in the display substrate can be determined based on the above formula. For example, in some embodiments, the number of first pixel repeating units Q1 included in the first display area 10 in the first direction X is 2*Floor(b1 / (D*t)), so that the size of the first display area 10 in the first direction X is the maximum allowable value. In this case, the circular display area 10A described below can have the largest area.

[0063] For example, the size L1 of the first display area 10 in the first direction X substantially satisfies: L1=s*a1. Thus, the maximum value of the size L1 of the first display area 10 in the first direction X is substantially:

[0064] L1 max =2*Floor(b1 / (D*t))*a1.

[0065] For example, the size of the first display area 10 in the second direction Y is approximately equal to the size L1 of the first display area 10 in the first direction X, that is, the shape of the first display area 10 is approximately square, so that the area of ​​the first display area 10 is not too large when the circular display area 10A has the largest possible area.

[0066] For example, Figure 4As shown, the first pixel repeating unit Q1 in the first display area 10 can be controlled in half by the fourth pixel repeating unit Q4 in the second display area 20 which is symmetrical about the center line of the first display area 10 in the second direction Y. Figure 4 As shown, the first pixel repeating unit Q1 in the left half of the first display area 10 is controlled by the fourth pixel repeating unit Q4 in the second display area 20 on the left side of the first display area 10, and the first pixel repeating unit Q1 in the right half of the first display area 10 is controlled by the fourth pixel repeating unit Q4 in the second display area 20 on the right side of the first display area 10. For example, Figure 4 As shown, the first display area 10 includes a circular display area 10A (marked by a gray circle) and a ring-shaped wiring area 10B surrounding the circular display area 10A. Figure 4 As shown, the wiring for driving the first light emitting element in the circular display area 10A is densely arranged in the annular wiring area 10B, so that the circular display area 10A can have a maximum possible area.

[0067] Figure 5A A schematic plan view of a first pixel repeating unit provided in at least one embodiment of the present disclosure. Figure 5A As shown, each first pixel repeating unit 01 includes 8 first light-emitting elements arranged in a GGRB pixel arrangement manner, and accordingly, each fourth pixel repeating unit includes 8 first pixel circuits for correspondingly driving the above 8 first light-emitting elements. Each first light-emitting element is connected to a first pixel circuit via a transparent connecting line TL, so that t=8.

[0068] For example, Figure 5A As shown, each first pixel repeating unit 01 includes two groups of first light-emitting elements, each group of first light-emitting elements includes a red light-emitting element R, two green light-emitting elements G and a blue light-emitting element B. For example, in each group of first light-emitting elements, the red light-emitting element R and the first green light-emitting element G can share a gate line, and the blue light-emitting element B and another green light-emitting element G can also share a gate line, so that, Figure 5A The number of gate lines corresponding to the first pixel repeating unit 01 shown is x=4; for example, in each group of first light-emitting elements, the red light-emitting element R and the blue light-emitting element B can share one data line, and the two green light-emitting elements G can also share one data line, so that, Figure 5A The number of data lines corresponding to the first pixel repetition unit 01 is y=4.

[0069] Figure 5B A schematic plan view of another first pixel repeating unit provided in at least one embodiment of the present disclosure. Figure 5BAs shown, each first pixel repeating unit 01 includes 12 first light-emitting elements arranged in an RGB pixel arrangement manner, and accordingly, each fourth pixel repeating unit includes 12 first pixel circuits for correspondingly driving the above 12 first light-emitting elements. Each first light-emitting element is connected to a first pixel circuit via a transparent connecting line TL, so that t=12.

[0070] For example, Figure 5B As shown, the 12 first light-emitting elements in each first pixel repeating unit 01 include 4 red light-emitting elements R, 4 green light-emitting elements G, and 4 blue light-emitting elements B. For example, Figure 5B As shown, the 12 first light-emitting elements in each first pixel repeating unit 01 are arranged in 2 rows and 6 columns. For example, the 6 first light-emitting elements in each row can share a gate line, so that Figure 5B The number of gate lines corresponding to the first pixel repeating unit 01 shown is x=2; for example, two first light-emitting elements in each column can share one data line, so that: Figure 5B The number of data lines corresponding to the first pixel repetition unit 01 is y=6.

[0071] It should be noted that Figure 5A and Figure 5B The first pixel repeating units shown are all exemplary, and the embodiments of the present disclosure do not limit the specific structure of the first pixel repeating unit (ie, the type, quantity, and arrangement of the first light-emitting elements included in the first pixel repeating unit).

[0072] For example, the first pixel circuit in the fourth pixel repeating unit may adopt common pixel driving circuits such as 2T1C, 4T1C, 4T2C, 7T1C, etc., but is not limited thereto. The embodiments of the present disclosure do not limit the specific structure of the first pixel circuit.

[0073] It should be noted that the embodiments of the present disclosure do not limit the specific structure of the second pixel repeating unit (i.e., the specific structure of the second pixel circuit and the type, quantity, and arrangement of the second light-emitting element, etc.). Similarly, the embodiments of the present disclosure do not limit the specific structure of the third pixel repeating unit (i.e., the specific structure of the third pixel circuit and the type, quantity, and arrangement of the third light-emitting element, etc.). It should also be noted that, in order to simplify the design and facilitate manufacturing, the type, quantity, and arrangement of the first light-emitting element in the first pixel repeating unit can be the same as the second light-emitting element in the second pixel repeating unit and the third light-emitting element in the third pixel repeating unit, and the specific structure of the first pixel circuit in the fourth pixel repeating unit can be the same as the second pixel circuit in the second pixel repeating unit and the third pixel circuit in the third pixel repeating unit.

[0074] For example, Figure 4 As shown, the gate line GL for driving the first light-emitting element in each row of the first pixel repeating unit Q1 in the first direction X is electrically connected to the first pixel circuit in the corresponding fourth pixel repeating unit Q4 in the same row in the first direction X, at least a portion of the gate line GL extends along the first direction X, at least another portion of the gate line GL is located in the annular wiring area, and the gate line GL does not pass through the circular display area 10A. By arranging at least another portion of the gate line GL in the annular wiring area, so that the gate line GL bypasses the circular display area 10A, the light transmittance of the circular display area 10A can be improved. For example, the above-mentioned gate line GL can also be electrically connected to the second pixel circuit in the second pixel repeating unit in the same row in the first direction X and the third pixel circuit in the third pixel repeating unit. For example, the above-mentioned gate line GL is used to provide a driving control signal for each pixel circuit (for example, the first to third pixel circuits), for example, the driving control signal includes but is not limited to a reset control signal, a scan signal, a light control signal, etc. Correspondingly, the gate line GL may include but is not limited to a reset control line, a scan signal line (also commonly referred to as a "gate line"), a light control line, etc.

[0075] For example, the data line DL for driving the first light-emitting element in each column of the first pixel repeating unit Q1 in the second direction Y is electrically connected to the first pixel circuit in a corresponding column of the fourth pixel repeating unit Q4 in the second direction Y, at least a portion of the data line DL extends along the second direction Y, at least another portion of the data line DL is located in the annular wiring area 10B, and the data line DL does not pass through the circular display area 10A. By arranging at least another portion of the data line DL in the annular wiring area, so that the data line DL bypasses the circular display area 10A, the light transmittance of the circular display area 10A can be improved. For example, the data line GL can also be electrically connected to the third pixel circuit in the third pixel repeating unit in the same column as the first pixel repeating unit Q1 in each column in the second direction Y; for another example, in some examples, the second display area 20 completely surrounds the first display area 10, in which case the data line GL can also be electrically connected to the second pixel circuit in the second pixel repeating unit in the same column as the first pixel repeating unit Q1 in each column in the second direction Y. For example, the data line DL is used to provide a data signal to each pixel circuit (eg, the first to third pixel circuits), thereby controlling the light emitting brightness of each light emitting element (eg, the first to third light emitting elements).

[0076] For example, in the display substrate provided by the embodiment of the present disclosure, the gate line GL and the data line DL may be located in different layers.

[0077] For example, in some embodiments, the number of gate lines corresponding to each third pixel repeating unit Q3 is the same as the number of gate lines corresponding to each first pixel repeating unit Q1, and the number of gate lines GL corresponding to each first pixel repeating unit Q1 is x; the pitch of the gate lines GL when densely arranged in the annular wiring area 10B is c1, for example, the value of c1 can usually be about 3μm; the total radial width R1 of the gate lines GL in the annular wiring area 10B is approximately x*c1*Floor(L1 / b2) / 2, where Floor(L1 / b2) represents the maximum number of third pixel repeating units Q3 corresponding to the size of the first display area 10 in the second direction Y. It should be noted that, Figure 4 As shown, for the gate lines GL that need to bypass (i.e., not pass through) the circular display area 10A in the first display area 10, half of the gate lines GL can be routed around the upper half of the annular routing area 10B to bypass the circular display area 10A, and the other half of the gate lines GL can be routed around the lower half of the annular routing area 10B to bypass the circular display area 10A.

[0078] For example, in some embodiments, the number of data lines DL corresponding to each first pixel repeating unit Q1 is y; the pitch of the data lines DL when densely arranged in the annular wiring area 10B is c2, for example, the value of c2 can usually be about 4 μm; because the first pixel repeating unit Q1 in the first display area 10 adopts a left-right half control method, the total radial width R2 of the data lines DL in the annular wiring area 10B is approximately y*c2*s / 2. It should be noted that, if Figure 4 As shown, for the data lines DL corresponding to the first display area 10, half of the data lines DL can circle from the left half of the annular routing area 10B to bypass the circular display area 10A, and finally be electrically connected to the first pixel circuit in the second display area 20 on the left side of the first display area 10, and the other half of the data lines DL can circle from the right half of the annular routing area 10B to bypass the circular display area 10A, and finally be electrically connected to the first pixel circuit in the second display area 20 on the side of the first display area 10.

[0079] For example, in some embodiments, Figure 4As shown, the orthographic projection of the main part of the gate line GL in the annular wiring area 10B extending in the circumferential direction on the display substrate does not overlap with the orthographic projection of the main part of the data line DL in the annular wiring area 10B extending in the circumferential direction on the display substrate, thereby reducing parasitic capacitance. In this case, the radial width R of the annular wiring area 10B is approximately x*c1*Floor(L1 / b2) / 2+y*c2*s / 2, and the diameter of the circular display area 10A is approximately s*a1-x*c1*Floor(L1 / b2)-y*c2*s / 2; the diameter of the circular display area 10A is the maximum diameter allowed for the circular display area 10A in this case.

[0080] For example, in some other embodiments, the orthographic projection of the main part of the circumferentially extending gate line GL in the annular wiring area 10B on the display substrate at least partially overlaps with the orthographic projection of the main part of the circumferentially extending data line DL in the annular wiring area 10B on the display substrate. In this case, the radial width R of the annular wiring area 10B is approximately max(x*c1*Floor(L1 / b2) / 2,y*c2*s / 2), and the diameter of the circular display area 10A is approximately s*a1-max(x*c1*Floor(L1 / b2),y*c2*s); the diameter of the circular display area 10A is the maximum diameter allowed for the circular display area 10A in this case.

[0081] For example, in some embodiments, in order to simplify the design and facilitate the manufacturing, a1=b1 can be made, so that when the orthographic projection of the main part of the gate line GL in the annular wiring area 10B extending in the circumferential direction on the display substrate does not overlap with the orthographic projection of the main part of the data line DL in the annular wiring area 10B extending in the circumferential direction on the display substrate, the radial width R of the annular wiring area 10B is approximately (x*c1*n+y*c2)*s / 2, and the diameter of the circular display area 10A is approximately (a1-x* c1*ny*c2)*s; when the orthographic projection of the main part of the gate line GL in the annular routing area 10B extending along the circumferential direction on the display substrate at least partially overlaps with the orthographic projection of the main part of the data line DL in the annular routing area 10B extending along the circumferential direction on the display substrate, the radial width R of the annular routing area 10B is approximately max(x*c1*n,y*c2)*s / 2, and the diameter of the circular display area 10A is approximately (a1-max(x*c1*n,y*c2))*s.

[0082] For example, in some embodiments, the size L2 of the second display area 20 in the first direction X substantially satisfies: L2=(s+2)*a1. Figure 4As shown, the number of columns of the second pixel repeating unit Q2 in the second display area 20 is 2 more than the number of columns of the first pixel repeating unit Q1 in the first display area 10, and the extra 2 columns of the second pixel repeating unit Q2 are respectively located in the second display area 20 on the left and right sides of the first display area 10, and are far away from the first display area 10. For example, considering the difference in the boundary luminescence algorithm between the third display area 30 (with high resolution) and the second display area 20 (with second resolution), the extra 2 columns of the second pixel repeating unit Q2 can be used to cope with the impact of the above difference. For example, Figure 4 As shown, the number of columns of the fourth pixel repeating unit Q4 in the second display area 20 is two more than the number of columns of the first pixel repeating unit Q1 in the first display area 10, and the two extra columns of the fourth pixel repeating unit Q4 are respectively located in the second display area 20 on the left and right sides of the first display area 10, and are far away from the first display area 10. For example, the two extra columns of the fourth pixel repeating unit Q4 can be used as a backup.

[0083] For example, in some embodiments, Figure 3 and Figure 4 As shown, the size of the second display area 20 in the second direction Y is approximately equal to the size of the first display area 10 in the second direction 20. For example, in other embodiments, the size of the second display area 20 in the second direction Y may be slightly larger than the size of the first display area 10 in the second direction Y. In this case, the second display area 20 may completely surround the first display area 10. For example, the difference between the size of the second display area 20 in the second direction Y and the size of the first display area 10 in the second direction Y is approximately equal to 4b1, that is, there are two rows of second pixel repeating units Q2 on the upper and lower sides of the first display area 10, and the embodiments of the present disclosure include but are not limited to this. In summary, the display substrate provided in the embodiments of the present disclosure can reasonably determine the size of the first display area 10 and the second display area 20 on the premise that the area of ​​the circular display area 10A is as large as possible. It should be noted that in actual applications, the area of ​​the first display area 10 outside the annular wiring area 10B can be designed or manufactured to be consistent with the second display area 20. In this case, the circular display area 10A can be used as the only light-transmitting display area. That is, Figure 4 The circular display area 10A in the embodiment is regarded as the effective first display area, and Figure 4 The first display area outside the circular display area 10A in the embodiment is regarded as a part of the second display area.

[0084] For example, in some embodiments, the partial cross-sectional structure diagram of the display substrate provided by the embodiments of the present disclosure can refer to Figure 2 For example, the structures of the light-emitting elements (eg, the first to third light-emitting elements) in the display substrate provided in the embodiments of the present disclosure can all refer to Figure 2The light-emitting element 4 in the embodiment of the present disclosure. For example, in the display substrate provided in the embodiment of the present disclosure, each light-emitting element includes an anode, a cathode, and a light-emitting layer between the anode and the cathode. For example, in some examples, the anode may include a three-layer structure of ITO / Ag / ITO, etc., and the embodiments of the present disclosure do not limit the specific structure of the anode. For example, the cathode can be formed as a common cathode of a whole surface. For example, the material of the common cathode may include metal materials such as lithium (Li), aluminum (Al), magnesium (Mg), and silver (Ag). For example, since the common cathode can be formed as a very thin layer, the common cathode has good light transmittance.

[0085] For example, the display substrate provided in the embodiments of the present disclosure may be an organic light emitting diode (OLED) display substrate or a quantum dot light emitting diode (QLED) display substrate, etc. The embodiments of the present disclosure do not limit the specific type of the display substrate.

[0086] For example, in the case where the display substrate is an organic light emitting diode display substrate, the light emitting layer may include small molecule organic materials or polymer molecule organic materials, may be fluorescent light emitting materials or phosphorescent light emitting materials, may emit red light, green light, blue light, or may emit white light, etc. Moreover, according to different actual needs, in different examples, the light emitting layer may further include functional layers such as an electron injection layer, an electron transport layer, a hole injection layer, and a hole transport layer.

[0087] For example, in the case where the display substrate is a quantum dot light-emitting diode (QLED) display substrate, the light-emitting layer may include quantum dot materials, such as silicon quantum dots, germanium quantum dots, cadmium sulfide quantum dots, cadmium selenide quantum dots, cadmium telluride quantum dots, zinc selenide quantum dots, lead sulfide quantum dots, lead selenide quantum dots, indium phosphide quantum dots and indium arsenide quantum dots, etc. The particle size of the quantum dots is, for example, 2-20 nm.

[0088] For example, the structures of the pixel circuits (eg, the first to third pixel circuits) in the display substrate provided in the embodiments of the present disclosure can all refer to Figure 2 For example, in the display substrate provided in the embodiment of the present disclosure, each pixel circuit includes a thin film transistor (T), a capacitor (C), and other structures. For example, a thin film transistor includes an active layer, a gate, and a source-drain electrode (source and drain, such as Figure 2 The source-drain electrode 7 is shown in the figure).

[0089] For example, in some embodiments, reference Figure 2 As shown, the display substrate may include an anode layer, a source-drain electrode layer, and a transparent connection wiring layer located between the anode layer and the source-drain electrode layer; the anode of the first light-emitting element (such as Figure 2 The anode 4A is located in the anode layer, and the transparent connecting wire (such as Figure 26) is located in the transparent connection wiring layer, and at least one of the source and drain of the thin film transistor (as shown in FIG. Figure 2 The source-drain electrode 7 is shown in the figure) located in the source-drain metal layer, and the anode of the first light-emitting element is electrically connected to the source and at least one of the drain of the thin film transistor through a transparent connecting wire. It should be understood that an insulating layer is usually provided between the anode layer and the transparent connecting wire layer and between the source-drain electrode layer and the transparent connecting wire layer, and a via hole for forming an electrical connection is usually provided in the insulating layer.

[0090] For example, in some embodiments, in order to improve the light transmittance of the first display area, the anode of the first light-emitting element may be a transparent electrode, and the anode of the first light-emitting element is electrically connected to the first pixel circuit in the second display area through a transparent connecting wire. It should be noted that in the embodiments of the present disclosure, only the portion of the transparent connecting wire located in the light-transmitting display area 1 is required to be transparent; for example, the transparent connecting wire may be made of a transparent conductive material, such as a transparent metal oxide, such as indium tin oxide (ITO), etc., to have good light transmittance.

[0091] The display substrate provided by the embodiments of the present disclosure can optimize the arrangement of transparent connecting lines and the arrangement of the first light-emitting elements in the first display area, thereby improving the display effect of the first display area and improving the light transmittance of the first display area, thereby helping to improve the performance of the full-screen display device.

[0092] At least one embodiment of the present disclosure further provides a display device. Figure 6 A schematic block diagram of a display device provided by at least one embodiment of the present disclosure. Figure 6 As shown, the display device 100 includes a display substrate 110. The display substrate 110 is a display substrate provided by any embodiment of the present disclosure, for example Figure 3 or Figure 4 The display substrate shown. The display device 100 can be any electronic device with a display function, such as a smart phone, a laptop, a tablet computer, a television, etc. For example, when the display device 100 is a smart phone or a tablet computer, the smart phone or the tablet computer can have a full-screen design, that is, there is no peripheral area around the third display area 30. In addition, the smart phone or the tablet computer also has an under-screen sensor (such as a camera, an infrared sensor, etc.), which can perform operations such as image capture, distance perception, and light intensity perception.

[0093] It should be noted that any applicable components can be used for the display substrate 110 and other components of the display device 100 (for example, image data encoding / decoding device, clock circuit, etc.). These should be understood by ordinary technicians in the field and will not be elaborated here, nor should they be regarded as limitations on the embodiments of the present disclosure.

[0094] Figure 7 A cross-sectional schematic diagram of a display device provided by at least one embodiment of the present disclosure. Figure 7 As shown, the display device 100 includes a display substrate 110. The display substrate 110 is a display substrate provided by any embodiment of the present disclosure, for example Figure 3 or Figure 4 For example, the display device 100 further includes a sensor 120 .

[0095] For example, Figure 7 As shown, the display substrate 110 includes a first side F1 for display and a second side F2 opposite to the first side F1. That is, the first side F1 is a display side, and the second side F2 is a non-display side. The display substrate 110 is configured to perform a display operation on the first side F1, that is, the first side F1 of the display substrate 110 is a light emitting side of the display substrate 110, and the first side F1 faces the user. The first side F1 and the second side F2 are opposite in the normal direction of the display surface of the display substrate 110.

[0096] For example, Figure 7 As shown, the sensor 120 is disposed on the second side F2 of the display substrate 110, and the sensor 120 is configured to receive light from the first side F1. For example, the sensor 120 and the first display area 10 are overlapped in the normal direction of the display surface of the display substrate 110 (for example, the direction perpendicular to the display substrate 110), and the sensor 120 can receive and process the light signal passing through the first display area 10, which can be visible light, infrared light, etc. For example, the first display area 10 allows the light from the first side F1 to be at least partially transmitted to the second side F2. For example, the first display area 10 is not provided with a pixel circuit, in which case the light transmittance of the first display area 11 can be improved. For example, in some examples, the sensor 120 and the circular display area 10A in the first display area 10 are overlapped in the normal direction of the display surface of the display substrate 110 (for example, the direction perpendicular to the display substrate 110), in which case the circular display area 10A can be regarded as an effective first display area.

[0097] For example, the orthographic projection of the sensor 120 on the display substrate at least partially overlaps with the first display area 10. For example, in some examples, when a direct-down arrangement is adopted, the orthographic projection of the sensor 120 on the display substrate 110 is located in the first display area 10. For example, in other examples, when other light guide elements (such as a light guide plate, a light guide pipe, etc.) are used to allow light to be incident on the sensor 320 from the side, the orthographic projection of the sensor 120 on the display substrate 110 partially overlaps with the first display area 10. At this time, since the light can propagate laterally to the sensor 120, it is not necessary for the sensor 120 to be completely located at a position corresponding to the first display area 10.

[0098] For example, by disposing the first pixel circuit in the second display area 20 and overlapping the sensor 120 with the first display area 10 in the normal direction of the display surface of the display substrate 110, the shielding of the light signal incident to the first display area 10 and irradiated to the sensor 120 by the elements in the first display area 10 can be reduced, thereby improving the signal-to-noise ratio of the image output by the sensor 120. For example, the first display area 10 can be referred to as a high light-transmittance area of ​​the low-resolution area of ​​the display substrate 110 (the second display area 20 can be referred to as a low light-transmittance area or an opaque area of ​​the low-resolution area of ​​the display substrate 110).

[0099] For example, the sensor 120 may be an image sensor, which may be used to collect an image of the external environment facing the light-collecting surface of the sensor 120, such as a CMOS image sensor or a CCD image sensor. The sensor 120 may also be an infrared sensor, a distance sensor, and the like. For example, in a case where the display device 100 is a mobile terminal such as a mobile phone or a notebook, the sensor 120 may be implemented as a camera of a mobile terminal such as a mobile phone or a notebook, and may also include optical devices such as lenses, reflectors, or optical waveguides as needed to modulate the optical path. For example, the sensor 120 may include photosensitive pixels arranged in an array. For example, each photosensitive pixel may include a photosensitive detector (e.g., a photodiode, a phototransistor) and a switching transistor (e.g., a thin film transistor). For example, a photodiode may convert a light signal irradiated thereon into an electrical signal, and a switching transistor may be electrically connected to the photodiode to control whether the photodiode is in a state of collecting light signals and the time of collecting light signals.

[0100] In some examples, in the first display area 10, only the anode of the first light-emitting element may be opaque, that is, the wiring for driving the first light-emitting element bypasses the first display area 11 or is set as a transparent wiring. In this case, not only can the light transmittance of the first display area 11 be further improved, but also the diffraction caused by each element in the first display area 10 can be reduced. For example, in other examples, the anode of the first light-emitting element can be further set as a transparent electrode.

[0101] It should be noted that in the embodiment of the present disclosure, the display device 100 may also include more components and structures, which are not limited in the embodiment of the present disclosure. For the technical effects and detailed description of the display device 100, reference may be made to the above description of the display substrate, which will not be repeated here.

[0102] There are a few points to note about this disclosure:

[0103] (1) The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure, and other structures may refer to the general design.

[0104] (2) For the sake of clarity, the thickness and size of layers or structures are exaggerated in the drawings used to describe the embodiments of the present invention. It is understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "under" another element, the element may be "directly" "on" or "under" the other element, or there may be intervening elements.

[0105] (3) In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0106] The above description is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. The protection scope of the present disclosure shall be based on the protection scope of the claims.

Claims

1. A display substrate having a first side for display and a second side opposite to the first side, and comprising a first display area, a second display area and a third display area; wherein: The first display area includes a plurality of first pixel repeating units arranged in an array along a first direction and a second direction, each of the first pixel repeating units includes a first light emitting element, and the first display area includes a light transmission area that allows light to be transmitted between a first side and a second side of the display substrate; The second display area includes a plurality of second pixel repeating units and a plurality of fourth pixel repeating units arranged in an array along the first direction and the second direction, each of the second pixel repeating units includes a second pixel circuit and a second light-emitting element, the second pixel circuit and the second light-emitting element are electrically connected, and each of the fourth pixel repeating units includes a first pixel circuit; The third display area includes a plurality of third pixel repeating units arranged in an array along the first direction and the second direction, each of the third pixel repeating units includes a third pixel circuit and a third light emitting element, and the third pixel circuit and the third light emitting element are electrically connected; The third display area at least partially surrounds the second display area, the second display area at least partially surrounds the first display area, and the second display area is axisymmetric about a center line of the first display area in the second direction; Each of the first pixel repeating units corresponds to a fourth pixel repeating unit, a center line connecting each of the first pixel repeating units and the corresponding fourth pixel repeating unit is substantially parallel to the first direction, and the first light-emitting element in each of the first pixel repeating units is electrically connected to the first pixel circuit in the corresponding fourth pixel repeating unit through t transparent connecting wires, where t is a positive integer and t≥1; The pitch of the first pixel repeating unit in the second direction is b1, the pitch of the second pixel repeating unit in the second direction is b1, and the pitch of the third pixel repeating unit in the second direction is b2, wherein b1=n*b2, n is a positive integer and n≥2; The pitch of the transparent connection wiring in the second direction is D, and the maximum number s of the first pixel repeating units included in the first display area in the first direction satisfies: s≤2*Floor(b1 / (D*t)), where Floor() represents the floor function; The first display area includes a circular display area and a ring-shaped wiring area surrounding the circular display area; A gate line for driving the first light-emitting element in each row of the first pixel repeating unit in the first direction is electrically connected to the first pixel circuit in the corresponding fourth pixel repeating unit in the same row in the first direction, at least a portion of the gate line extends along the first direction, at least another portion of the gate line is located in the annular wiring area, and the gate line does not pass through the circular display area; A data line for driving the first light-emitting element in each column of the first pixel repeating unit in the second direction is electrically connected to the first pixel circuit in a corresponding column of the fourth pixel repeating unit in the second direction, at least a portion of the data line extends along the second direction, at least another portion of the data line is located in the annular wiring area, and the data line does not pass through the circular display area; The number of gate lines corresponding to each of the third pixel repeating units is the same as the number of gate lines corresponding to each of the first pixel repeating units, the number of gate lines corresponding to each of the first pixel repeating units is x, the pitch of the gate lines in the annular wiring area is c1, and the total radial width of the gate lines in the annular wiring area is approximately x*c1*Floor(L1 / b2) / 2; The number of data lines corresponding to each of the first pixel repeating units is y, the pitch of the data lines in the annular routing area is c2, and the total radial width of the data lines in the annular routing area is approximately y*c2*s / 2.

2. The display substrate according to claim 1, wherein: The pitch of the first pixel repeating unit in the first direction is a1, the pitch of the second pixel repeating unit in the first direction is a1, and the pitch of the third pixel repeating unit in the first direction is a2, wherein a1=m*a2, m is a positive integer and m≥2, A size L1 of the first display area in the first direction substantially satisfies: L1 = s*a1.

3. The display substrate according to claim 2, wherein: A size of the first display area in the second direction is substantially equal to a size of the first display area in the first direction.

4. The display substrate according to claim 3, wherein: The gate line and the data line are located in different layers.

5. The display substrate according to claim 1, wherein: The orthographic projection of the main part of the gate line in the annular wiring area extending in the circumferential direction on the display substrate does not overlap with the orthographic projection of the main part of the data line in the annular wiring area extending in the circumferential direction on the display substrate, The radial width of the annular routing area is approximately x*c1*Floor(L1 / b2) / 2+y*c2*s / 2.

6. The display substrate according to claim 5, wherein: The diameter of the circular display area is approximately s*a1-x*c1*Floor(L1 / b2)-y*c2*s / 2.

7. The display substrate according to claim 1, wherein: The orthographic projection of the main part of the gate line in the annular wiring area extending in the circumferential direction on the display substrate at least partially overlaps with the orthographic projection of the main part of the data line in the annular wiring area extending in the circumferential direction on the display substrate, The radial width of the annular routing area is approximately max(x*c1*Floor(L1 / b2) / 2,y*c2*s / 2), where max() is a maximum value function.

8. The display substrate according to claim 7, wherein: The diameter of the circular display area is approximately s*a1-max(x*c1*Floor(L1 / b2),y*c2*s).

9. The display substrate according to any one of claims 1 to 8, wherein: A size L2 of the second display area in the first direction substantially satisfies: L2=(s+2)*a1.

10. The display substrate according to any one of claims 1 to 8, wherein: A size of the second display area in the second direction is substantially equal to a size of the first display area in the second direction.

11. The display substrate according to any one of claims 1 to 8, wherein: A size of the second display area in the second direction is greater than a size of the first display area in the second direction, and a difference between a size of the second display area in the second direction and a size of the first display area in the second direction is substantially equal to 4b1.

12. The display substrate according to any one of claims 1 to 8, wherein: A pitch of the fourth pixel repeating unit in the first direction is equal to a pitch of the second pixel repeating unit in the first direction.

13. The display substrate according to any one of claims 1 to 8, wherein: Each of the first pixel repetition units includes 8 first light-emitting elements arranged in a GGRB pixel arrangement manner, t=8, the number of gate lines corresponding to each of the first pixel repetition units is 4, and the number of data lines corresponding to each of the first pixel repetition units is 4.

14. The display substrate according to any one of claims 1 to 8, wherein: Each of the first pixel repetition units includes 12 first light-emitting elements arranged in an RGB pixel arrangement manner, t=12, the number of gate lines corresponding to each of the first pixel repetition units is 2, and the number of data lines corresponding to each of the first pixel repetition units is 6.

15. The display substrate according to any one of claims 1 to 8, wherein: The first direction and the second direction are perpendicular to each other.

16. The display substrate according to any one of claims 1 to 8, wherein: The display substrate comprises an anode layer, a source-drain electrode layer, and a transparent connection wiring layer located between the anode layer and the source-drain electrode layer. The anode of the first light emitting element is located in the anode layer, and the transparent connecting wire is located in the transparent connecting wire layer. The first pixel circuit includes a thin film transistor, the thin film transistor includes a source and a drain, at least one of the source and the drain of the thin film transistor is located in the source-drain electrode layer, The anode of the first light emitting element is electrically connected to at least one of the source and the drain of the thin film transistor through the transparent connecting wire.

17. The display substrate according to any one of claims 1 to 8, wherein: The anode of the first light-emitting element is a transparent electrode.

18. A display device comprising the display substrate according to any one of claims 1-17.

19. The display device according to claim 18, further comprising a sensor, wherein: The sensor is disposed on the second side of the display substrate, the orthographic projection of the sensor on the display substrate at least partially overlaps with the first display area, and the sensor is configured to receive light from the first side.

Images