Display substrate and display device

Abstract

The invention discloses a display substrate and a display device. The display substrate comprises a plurality of sub-pixel groups and a plurality of signal line groups. The plurality of signal line groups are arranged at intervals along a first direction, each signal line group comprises at least one signal line, the signal line extends along a second direction intersected with the first direction, each sub-pixel group comprises a first sub-pixel, the first sub-pixel comprises a first anode and a first effective light-emitting area, the first anode comprises a first main body part, and the first main body part comprises a second main body part; the first main body part and the first effective light-emitting area are at least partially overlapped, the size of the first main body part in the first direction is larger than that of the first main body part in the second direction, and the first anode is overlapped with the two adjacent signal line groups. According to the display substrate, the color cast phenomenon generated when observation is conducted from the left side and the right side of the normal line of the display substrate adopting the display substrate at the same angle with the normal line of the display substrate can be improved or even eliminated.

Description

[0001] This application is a divisional application of the national application with the national application number 201980001208.6, which entered the Chinese national phase on August 1, 2019. It is a patent application in the Chinese national phase of the PCT international application PCT / CN2019 / 098708 filed on July 31, 2019. The content disclosed in the above patent application is hereby incorporated by reference in its entirety as part of this application. Technical Field

[0002] Embodiments of the present disclosure relate to a display substrate and a display device. Background Art

[0003] With the continuous development of display technology, organic light emitting diode (OLED) display panels have been increasingly applied to various electronic devices due to their advantages such as self-luminescence, wide viewing angle, high contrast ratio, low power consumption, and high response speed.

[0004] With the increasing requirements for OLED display panels, in order to achieve a high-resolution design in small-sized display panels, OLED display panels usually adopt an SPR pixel arrangement, that is, a pixel borrowing method. Summary of the Invention

[0005] At least one embodiment of the present disclosure provides a display substrate, including: a substrate substrate; a plurality of sub-pixel groups; and a plurality of signal line groups arranged at intervals in a first direction. Each of the sub-pixel groups includes a first sub-pixel, the first sub-pixel includes a first anode and a first effective light-emitting region, the first anode includes a first main body portion, the first main body portion at least partially overlaps with the first effective light-emitting region, the size of the first main body portion in the first direction is greater than the size of the first main body portion in a second direction, and the first anode overlaps with two adjacent signal line groups.

[0006] For example, in the display substrate provided by an embodiment of the present disclosure, the ratio of the size of the first main body portion in the first direction to the size of the first main body portion in the second direction is γ1, and the value range of γ1 is 1.2 - 3.

[0007] For example, in the display substrate provided by an embodiment of the present disclosure, each of the signal lines includes an end portion connected to an external driving circuit.

[0008] For example, in the display substrate provided by an embodiment of the present disclosure, the shape of the orthographic projection of the first main body portion on the substrate substrate is substantially elongated, and the extending direction of the first main body portion intersects with the second direction.

[0009] For example, in the display substrate provided in an embodiment of the present disclosure, the extending direction of the first main body portion is substantially perpendicular to the second direction.

[0010] For example, in the display substrate provided in an embodiment of the present disclosure, the positions where the two signal line groups overlapping with the first anode are located at both ends of the first main body portion in the first direction. For example, in the display substrate provided in an embodiment of the present disclosure, the positions where the two signal line groups overlapping with the first anode are substantially axially symmetric about the first bisector of the first main body portion, and the first bisector is parallel to the second direction.

[0011] For example, in the display substrate provided in an embodiment of the present disclosure, the shape of the first main body portion is substantially hexagonal or elliptical, and the long axis of the hexagon or the long axis of the ellipse is substantially parallel to the first direction.

[0012] For example, in the display substrate provided in an embodiment of the present disclosure, each of the signal line groups includes two signal lines, and the first anode overlaps with four signal lines in two adjacent signal line groups.

[0013] For example, in the display substrate provided in an embodiment of the present disclosure, the at least one signal line included in each of the signal line groups includes a first signal line and a second signal line, and the distance between the first signal line and the second signal line in one signal line group is less than the distance between two adjacent signal line groups.

[0014] For example, in the display substrate provided in an embodiment of the present disclosure, in each of the signal line groups, the first signal line and the second signal line are arranged in sequence, and the arrangement orders of the first signal line and the second signal line in two adjacent signal line groups are the same. The two adjacent signal line groups include a first signal line group and a second signal line group arranged along the first direction. In the first signal line group, the first signal line is located on the side of the second signal line away from the second signal line group, and in the second signal line group, the first signal line is located on the side of the second signal line close to the first signal line group.

[0015] For example, in the display substrate provided in an embodiment of the present disclosure, the first signal line is a data line configured to transmit data signals, and the second signal line is a power line configured to transmit driving voltages.

[0016] For example, in the display substrate provided in an embodiment of the present disclosure, the first direction is perpendicular to the second direction.

[0017] For example, in the display substrate provided in an embodiment of the present disclosure, each of the sub-pixel groups further includes a second sub-pixel, and the second sub-pixel includes a second anode, and the second anode overlaps with two adjacent signal line groups.

[0018] For example, in the display substrate provided in an embodiment of the present disclosure, the signal lines in the two signal line groups overlapping with the second anode extend in the second direction on the substrate and pass through the orthographic projection of the second anode on the substrate.

[0019] For example, in the display substrate provided in an embodiment of the present disclosure, the second sub-pixel includes a second effective light-emitting region, the second anode includes a second main body portion, the second main body portion at least partially overlaps with the second effective light-emitting region, the dimension of the second main body portion in the first direction is greater than the dimension of the second main body portion in the second direction, and the positions of the two signal line groups overlapping with the second anode are located at both ends of the second main body portion in the first direction.

[0020] For example, in the display substrate provided in an embodiment of the present disclosure, the shape of the orthographic projection of the second main body portion on the substrate is generally elongated, and the extending direction of the second main body portion intersects with the second direction.

[0021] For example, in the display substrate provided in an embodiment of the present disclosure, the extending direction of the second main body portion is substantially perpendicular to the second direction.

[0022] For example, in the display substrate provided in an embodiment of the present disclosure, the positions of the two signal line groups overlapping with the second anode are substantially axisymmetric about the second bisector of the second main body portion, and the second bisector is parallel to the second direction.

[0023] For example, in the display substrate provided in an embodiment of the present disclosure, the shape of the second main body portion is generally hexagonal or elliptical, and the long axis of the hexagon or the long axis of the ellipse is substantially parallel to the first direction.

[0024] For example, in the display substrate provided in an embodiment of the present disclosure, each of the signal line groups includes two signal lines, and the second anode overlaps with four signal lines in two adjacent signal line groups.

[0025] For example, in the display substrate provided in an embodiment of the present disclosure, each of the sub-pixel groups further includes a third sub-pixel pair, each of the third sub-pixel pairs includes two third sub-pixels, each of the third sub-pixels includes a third anode, the two third anodes of the third sub-pixel pair respectively overlap with a signal line group, and the two signal line groups overlapping with the two third anodes of the third sub-pixel pair are adjacent.

[0026] For example, in the display substrate provided in an embodiment of the present disclosure, the positive projection of the signal line in the signal line group overlapping with the third anode on the substrate extends in the second direction and passes through the positive projection of the third anode on the substrate.

[0027] For example, in the display substrate provided in an embodiment of the present disclosure, the third sub-pixel includes a third effective light-emitting region, the third anode includes a third main body portion, the third main body portion at least partially overlaps with the third effective light-emitting region, and the two signal line groups overlapping with the two third anodes of the third sub-pixel pair are substantially axially symmetric about the third bisector of the central connection line of the two third main body portions, and the third bisector is parallel to the second direction.

[0028] For example, in the display substrate provided in an embodiment of the present disclosure, each signal line group includes two signal lines, the two third anodes of the third sub-pixel pair respectively overlap with the two signal lines in one signal line group, and the two signal line groups overlapping with the two third anodes of the third sub-pixel pair are adjacent.

[0029] For example, in the display substrate provided in an embodiment of the present disclosure, the multiple sub-pixel groups are arranged in the second direction to form multiple sub-pixel group columns, and arranged in the first direction to form multiple sub-pixel group rows. Two adjacent sub-pixel group columns are arranged with a 1 / 2 pitch offset. The pitch is equal to the distance between the centers of two first sub-pixels in two adjacent sub-pixel groups in the second direction. In each sub-pixel group, the first sub-pixel, the second sub-pixel, and the third sub-pixel pair are arranged in the second direction, and the two third sub-pixels in the third sub-pixel pair are arranged in the first direction.

[0030] For example, in the display substrate provided in an embodiment of the present disclosure, the first sub-pixel is configured to emit light of a first color, the second sub-pixel is configured to emit light of a second color, and the third sub-pixel is configured to emit light of a third color.

[0031] For example, in the display substrate provided in an embodiment of the present disclosure, the first color is blue, the second color is red, and the third color is green.

[0032] For example, the display substrate provided by an embodiment of the present disclosure further includes: a pixel defining layer located on a side of the first anode away from the substrate, and including a first opening; the first sub-pixel further includes: a first light-emitting layer, the first opening exposing the first anode, at least a part of the first light-emitting layer being located in the first opening and covering the exposed part of the first anode, and an area defined by the first opening being a first effective light-emitting area of the first sub-pixel.

[0033] For example, the display substrate provided by an embodiment of the present disclosure further includes: a planarization layer located between a film layer where the plurality of signal line groups are located and a film layer where the first anode is located, a height range of each of the signal line groups in a direction perpendicular to the substrate being 650 - 850 nanometers, and a thickness range of the planarization layer being 1.4 - 1.6 micrometers.

[0034] For example, in the display substrate provided by an embodiment of the present disclosure, when the sub-pixel group includes the second sub-pixel and the third sub-pixel, the pixel defining layer further includes a second opening and a third opening; the second sub-pixel further includes: a second light-emitting layer, the second opening exposing the second anode, at least a part of the second light-emitting layer being located in the second opening and covering the exposed part of the second anode, and an area defined by the second opening being a second effective light-emitting area of the second sub-pixel; the third sub-pixel further includes: a third light-emitting layer, the third opening exposing the third anode, at least a part of the third light-emitting layer being located in the third opening and covering the exposed part of the third anode, and an area defined by the third opening being a third effective light-emitting area of the third sub-pixel.

[0035] At least one embodiment of the present disclosure further provides a display substrate, which includes: a substrate; a plurality of sub-pixel groups; and a plurality of signal line groups arranged at intervals in a first direction, each of the signal line groups including a first signal line and a second signal line, the first signal line and the second signal line extending in a second direction intersecting with the first direction, each of the sub-pixel groups including a first sub-pixel, the first sub-pixel including a first anode and a first effective light-emitting area, the first anode including a first main body portion, the first main body portion at least partially overlapping with the first effective light-emitting area, a size of a space between two adjacent signal line groups in the first direction being 8 - 10 times a size of the first signal line in the first direction, a size of the first main body portion in the first direction being 15 - 17 times a size of the first signal line in the first direction, and a size of the first main body portion in the second direction being 9 - 11 times a size of the first signal line in the first direction.

[0036] For example, in the display substrate provided in an embodiment of the present disclosure, the ratio of the size of the first main body portion in the first direction to the size of the first main body portion in the second direction is γ1, and the value range of γ1 is 1.5 - 1.7.

[0037] For example, in the display substrate provided in an embodiment of the present disclosure, each of the sub-pixel groups further includes a second sub-pixel. The second sub-pixel includes a second anode and a second effective light-emitting region. The second anode includes a second main body portion, and the second main body portion overlaps with the second effective light-emitting region. The size of the interval between two adjacent signal line groups in the first direction is 8 - 10 times the size of the first signal line in the first direction. The size of the second main body portion in the first direction is 12 - 14 times the size of the first signal line in the first direction. The size of the second main body portion in the second direction is 4 - 6 times the size of the first signal line in the first direction.

[0038] For example, in the display substrate provided in an embodiment of the present disclosure, the ratio of the size of the second main body portion in the first direction to the size of the second main body portion in the second direction is γ2, and the value range of γ2 is 2.2 - 2.6.

[0039] For example, in the display substrate provided in an embodiment of the present disclosure, each of the sub-pixel groups further includes a third sub-pixel pair. Each of the third sub-pixel pairs includes two third sub-pixels. Each of the third sub-pixels includes a third anode and a third effective light-emitting region. The third anode includes a third main body portion, and the third main body portion at least partially overlaps with the third effective light-emitting region. The size of the interval between two adjacent signal line groups in the first direction is 8 - 10 times the size of the first signal line in the first direction. The size of the third main body portion in the first direction is 6 - 8 times the size of the first signal line in the first direction. The size of the third main body portion in the second direction is 7 - 9 times the size of the first signal line in the first direction.

[0040] For example, in the display substrate provided in an embodiment of the present disclosure, the size of the second signal line in the first direction is 1.3 - 1.4 times the size of the first signal line in the first direction.

[0041] For example, in the display substrate provided in an embodiment of the present disclosure, the orthographic projection of the first effective light-emitting region on the substrate falls within the orthographic projection of the first anode on the substrate, and the range of the shortest distance between the edge of the orthographic projection of the first effective light-emitting region on the substrate and the edge of the orthographic projection of the first anode on the substrate is 1 - 3 micrometers.

[0042] For example, in the display substrate provided in an embodiment of the present disclosure, the positive projection of the second effective light-emitting region on the substrate falls within the positive projection of the second anode on the substrate, and the range of the shortest distance between the edge of the positive projection of the second effective light-emitting region on the substrate and the edge of the positive projection of the second anode on the substrate is 1-3 micrometers.

[0043] For example, in the display substrate provided in an embodiment of the present disclosure, the positive projection of the third effective light-emitting region on the substrate falls within the positive projection of the third anode on the substrate, and the range of the shortest distance between the edge of the positive projection of the third effective light-emitting region on the substrate and the edge of the positive projection of the third anode on the substrate is 1-3 micrometers.

[0044] For example, in the display substrate provided in an embodiment of the present disclosure, the first sub-pixel is a blue sub-pixel, the second sub-pixel is a red sub-pixel, and the third sub-pixel is a green sub-pixel.

[0045] At least one embodiment of the present disclosure further provides a display substrate, which includes: a substrate; a plurality of sub-pixel groups; and a plurality of signal line groups arranged at intervals along a first direction. Each of the signal line groups includes a first signal line and a second signal line, and both the first signal line and the second signal line extend along a second direction intersecting with the first direction. In each of the signal line groups, the first signal line and the second signal line are arranged in sequence, and the arrangement order of the first signal line and the second signal line in two adjacent signal line groups is the same. Each of the sub-pixel groups includes a first sub-pixel, and the first sub-pixel includes a first anode, and the first anode overlaps with two adjacent signal line groups.

[0046] For example, in the display substrate provided in an embodiment of the present disclosure, two adjacent signal line groups include a first signal line group and a second signal line group arranged along the first direction. In the first signal line group, the first signal line is located on the side of the second signal line away from the second signal line group, and in the second signal line group, the first signal line is located on the side of the second signal line close to the first signal line group.

[0047] At least one embodiment of the present disclosure further provides a display substrate, which includes: a substrate; a plurality of signal line groups arranged at intervals in a first direction, each of the signal line groups including a first signal line and a second signal line, both the first signal line and the second signal line extending in a second direction intersecting the first direction, in each of the signal line groups, the first signal line and the second signal line are arranged in sequence, and the arrangement orders of the first signal line and the second signal line in two adjacent signal line groups are the same; and a plurality of sub-pixel groups arranged in the second direction to form a plurality of sub-pixel group columns and arranged in the first direction to form a plurality of sub-pixel group rows, two adjacent sub-pixel group columns are arranged with a 1 / 2 pitch offset, the pitch is equal to the distance between the centers of two first sub-pixels in two adjacent sub-pixels in the second direction, each sub-pixel group includes a first sub-pixel, a second sub-pixel, and a third sub-pixel pair, the third sub-pixel pair includes two third sub-pixels, in each of the sub-pixel groups, the first sub-pixel, the second sub-pixel, and the third sub-pixel pair are arranged in the second direction, the two third sub-pixels in the third sub-pixel pair are arranged in the first direction, the first sub-pixel includes a first anode, the second sub-pixel includes a second anode, the third sub-pixel includes a third anode, the first anode overlaps with two adjacent signal line groups, the second anode overlaps with two adjacent signal line groups, and the two third anodes of the third sub-pixel pair respectively overlap with a signal line group, and the two signal line groups overlapping with the two third anodes of the third sub-pixel pair are adjacent.

[0048] At least one embodiment of the present disclosure further provides a display device, including the above display substrate. Description of the Drawings

[0049] 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 and do not limit the present disclosure.

[0050] Figure 1 It is a schematic diagram of an OLED display substrate;

[0051] Figure 2 It is a cross-sectional schematic diagram of a sub-pixel in an OLED display substrate;

[0052] Figure 3 It is a layout diagram of a display substrate provided according to an embodiment of the present disclosure;

[0053] Figure 4 It is an equivalent circuit diagram of a pixel driving circuit of a sub-pixel in a display substrate provided according to an embodiment of the present disclosure;

[0054] Figures 5A - 5E Schematic diagram of each layer of a pixel driving circuit in a display substrate provided according to an embodiment of the present disclosure;

[0055] Figure 6 Planar schematic diagram of a display substrate provided according to an embodiment of the present disclosure;

[0056] Figure 7 Structural schematic diagram of a display substrate provided according to an embodiment of the present disclosure;

[0057] Figure 8 Structural schematic diagram of another display substrate provided according to an embodiment of the present disclosure;

[0058] Figure 9A Structural schematic diagram of another display substrate provided according to an embodiment of the present disclosure; and

[0059] Figure 9B Structural schematic diagram of another display substrate provided according to an embodiment of the present disclosure. Detailed implementation manners

[0060] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts shall fall within the protection scope of the present disclosure.

[0061] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure shall have the ordinary meanings understood by those of ordinary skill in the art to which the present disclosure pertains. The "first", "second", and similar terms used in the present disclosure do not denote any order, quantity, or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or items appearing before this term cover the elements or items listed after this term and their equivalents, without excluding other elements or items. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0062] Generally, an OLED display substrate includes a substrate, a driving circuit disposed on the substrate, a planarization layer disposed on a side of the driving circuit away from the substrate, an anode disposed on a side of the planarization layer away from the substrate, a light-emitting layer disposed on a side of the anode away from the substrate, and a cathode disposed on a side of the light-emitting layer away from the substrate.

[0063] The driving circuit on the substrate usually includes signal lines made of source-drain metal layers. For example, data lines (Data line) for transmitting or writing data and power supply lines (VDD line) for transmitting driving voltage. Before preparing the anode on the side of the driving circuit away from the substrate, a planarization layer (PLN) needs to be prepared on the driving circuit, and then the anode is prepared on the planarization layer, so that the subsequently prepared anode has a high flatness. However, in order to achieve high resolution, the pixel size of the OLED display substrate is small and the signal lines are dense. Also, in order to ensure the lifespan and display brightness of the OLED display substrate, the area of the effective light-emitting region of each pixel needs to be as large as possible. Therefore, the signal lines of the driving circuit will inevitably be arranged under the anode, that is, the signal lines of the driving circuit will overlap with the anode. At this time, since the signal lines made of source-drain metal layers are relatively thick, and the planarization layer on the signal lines made of source-drain metal layers cannot completely planarize them, the anode on the planarization layer and the light-emitting layer on the anode are uneven, and there are asymmetric protrusions on the anode and the light-emitting layer on the anode, resulting in color shift when observing from the left and right sides of the normal of the display substrate at the same angle as the normal of the display substrate.

[0064] Figure 1 It is a schematic diagram of an OLED display substrate. Figure 2 It is a cross-sectional schematic diagram of a sub-pixel in an OLED display substrate. As Figure 1 and 2 shown, the OLED display substrate includes: a substrate 10, a pixel driving circuit 20, a planarization layer 30, an anode 40, a light-emitting layer 50, a cathode 60, and a pixel defining layer 80; the pixel defining layer 80 defines an effective light-emitting region 90, for example, a blue effective light-emitting region 91, a red effective light-emitting region 92, and a green effective light-emitting region 93; the driving circuit 20 includes a signal line group 25 made of source-drain metal layers. Figure 1 It shows the positional relationship between the signal line group 25 and the effective light-emitting region 90. As Figure 1 shown, the signal line group 25 includes data lines 251 for transmitting or writing data and power supply lines 252 for transmitting driving voltage. Since the size of the normal effective light-emitting region 90 in the extension direction of the data line 251 is usually larger than the size in the direction perpendicular to the extension direction, the effective light-emitting region 90 usually can only cover one signal line group 25. And, as Figure 2As shown, due to the relatively large thickness of the signal line group 25, the flat layer 30 covering the signal line group 25 cannot completely planarize the display substrate, resulting in unevenness of the anode 40 on the flat layer 30 and the light-emitting layer 50 on the anode 40, and thus causing an asymmetric bulge 70 to appear on the anode 40 and the light-emitting layer 50 on the anode 40. The asymmetric bulge 70 is asymmetric with respect to the center of the effective light-emitting area 90 defined by the pixel defining layer 80. The light emitted from the left and right sides of the asymmetric bulge 70 in the direction of the normal of the display substrate is different, resulting in a color shift phenomenon when observed from the left and right sides of the normal of the display substrate at the same angle as the normal of the display substrate. For example, the color of the display substrate observed from the left side of the normal of the display substrate at an angle of 30 degrees with respect to the normal of the display substrate is different from the color of the display substrate observed from the right side of the normal of the display substrate at an angle of 30 degrees with respect to the normal of the display substrate, resulting in the above-mentioned color shift phenomenon.

[0065] In response to this, embodiments of the present disclosure provide a display substrate and a display device. The display substrate includes a substrate, a plurality of sub-pixel groups, and a plurality of signal line groups. The plurality of sub-pixel groups and the plurality of signal lines are disposed on the substrate; the plurality of signal line groups are arranged at intervals in a first direction, each signal line group includes at least one signal line, the signal line extends in a second direction intersecting the first direction, each sub-pixel group includes a first sub-pixel, and the first sub-pixel includes a first anode, and the first anode overlaps with two adjacent signal line groups. Since the first anode overlaps with two adjacent signal line groups, even if the first anode forms two protrusions at the positions where it overlaps with the two adjacent signal line groups, these two protrusions can reduce the asymmetry of the light emission of the first anode and the light-emitting layer on the first anode, and even eliminate the asymmetry of the light emission of the first anode and the light-emitting layer on the first anode, thereby improving, and even eliminating, the viewing angle color shift.

[0066] Next, the display substrate and the display device provided by the embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0067] Figure 3 FIG. is a layout diagram of a display substrate according to an embodiment of the present disclosure. As Figure 3 shown, the display substrate includes a substrate 101, a plurality of pixel driving circuits 220 disposed on the substrate 101, and a first sub-pixel 111, a second sub-pixel 112, and a third sub-pixel 113 disposed on the plurality of pixel driving circuits 220 away from the substrate 101. The first anode 1110 of the first sub-pixel 111 may further include a first connection electrode 171 connected to the first main body 1112; the first connection electrode 171 is configured to connect the first main body 1112 to the pixel driving circuit 220 corresponding to the first sub-pixel 111. When the display substrate includes the second sub-pixel 112, as Figure 3As shown, the second anode 1120 of the second sub-pixel 112 may further include a second connection electrode 172 connected to the second main body 1122; the second connection electrode 172 is configured to connect the second main body 1122 to the pixel driving circuit corresponding to the second sub-pixel 112. When the display substrate includes a third sub-pixel 113, as Figure 3 shown, the third anode 1130 of the third sub-pixel 113 may further include a third connection electrode 173 connected to the third main body 1132; the third connection electrode 173 is configured to connect the third main body 1132 to the pixel driving circuit corresponding to the third sub-pixel 113.

[0068] For example, in some examples, as Figure 3 shown, the first connection electrode 171 may be a protrusion in the middle of the edge of the first main body 1112 away from the second main body 1122; the second connection electrode 172 may be a protrusion in the middle of the edge of the second main body 1122 away from the first main body 1112; the third connection electrode 173 may be an extension extending outward from the third main body 1132; the two third connection electrodes 173 of the two third main bodies 1132 of the third sub-pixel pair 116 respectively extend to the two ends of the second main body 1122 in the first direction and are spaced apart from the second main body 1122.

[0069] For example, as Figure 3 shown, a plurality of pixel driving circuits 220 are used to drive the above-mentioned first sub-pixel 111, second sub-pixel 112, and third sub-pixel 113. Figure 4 is an equivalent circuit diagram of a pixel driving circuit of a sub-pixel in a display substrate provided according to an embodiment of the present disclosure. Figure 4 The pixel driving circuit shown can be used for any one of the above-mentioned first sub-pixel 111, second sub-pixel 112, and third sub-pixel 113. As Figure 4 shown, the pixel driving circuit 220 includes a plurality of thin film transistors T1, T2, T3, T4, T5, T6, and T7, a plurality of signal lines connected to the plurality of thin film transistors T1, T2, T3, T4, T5, T6, and T7, the plurality of signal lines including a gate line GL, an emission control line EM, an initialization line RL, a data line 121, a power supply line 122, and a capacitor Cst. The gate line GL is used to transmit a gate signal and may include a first gate line GLn and a second gate line GLn-1; the emission control line EM can transmit a control signal. Thus, the pixel driving circuit is a 7T1C pixel driving circuit. Of course, the embodiments of the present disclosure include but are not limited to this, and the above-mentioned first sub-pixel, second sub-pixel, and third sub-pixel may also adopt other types of pixel driving circuits.

[0070] For example, as Figure 4As shown, the first gate G1 of the first thin film transistor T1 is connected to the third drain D3 of the third thin film transistor T3 and the fourth drain D4 of the fourth thin film transistor T4. The first source S1 of the first thin film transistor T1 is connected to the second drain D2 of the second thin film transistor T2 and the fifth drain D5 of the fifth thin film transistor T5. The first drain D1 of the first thin film transistor T1 is connected to the third source S3 of the third thin film transistor T3 and the sixth source S6 of the sixth thin film transistor T6.

[0071] For example, as Figure 4 shown, the second gate G2 of the second thin film transistor T2 is connected to the first gate line GLn, the second source S2 of the second thin film transistor T2 is connected to the data line 121, and the second drain D2 of the second thin film transistor T2 is connected to the first source S1 of the first thin film transistor T1.

[0072] For example, as Figure 4 shown, the third gate G3 of the third thin film transistor T3 is connected to the first gate line GLn, the third source S3 of the third thin film transistor T3 is connected to the first drain electrode D1 of the first thin film transistor T1, and the third drain D3 of the third thin film transistor T3 is connected to the first gate G1 of the first thin film transistor T1.

[0073] For example, as Figure 4 shown, the fourth gate G4 of the fourth thin film transistor T4 is connected to the second gate line GLn-1, the fourth source S4 of the fourth thin film transistor T4 is connected to the initialization line RL, and the fourth drain D4 of the fourth thin film transistor T4 is connected to the first gate G1 of the first thin film transistor T1, and an initialization voltage Vint is applied through the initialization line RL.

[0074] For example, as Figure 4 shown, the fifth gate G5 of the fifth thin film transistor T5 is connected to the emission control line EM, the fifth source S5 of the fifth thin film transistor T5 is connected to the power supply line 122, and the fifth drain D5 of the fifth thin film transistor T5 is connected to the first source S1 of the first thin film transistor T1.

[0075] For example, as Figure 4 shown, the sixth gate G6 of the sixth thin film transistor T6 is connected to the emission control line EM, the sixth source S6 of the sixth thin film transistor T6 is connected to the first drain D1 of the first thin film transistor T1, and the sixth drain D6 of the sixth thin film transistor T6 is connected to the anode of each sub-pixel (for example, the first anode, the second anode, or the third anode mentioned above).

[0076] For example, as Figure 4As shown, the seventh gate G7 of the seventh thin film transistor T7 is connected to the second gate line GLn-1, the seventh source S7 of the seventh thin film transistor T7 is connected to the anode of each sub-pixel, and the seventh drain D7 of the seventh thin film transistor T7 is connected to the fourth source S4 of the fourth thin film transistor T4.

[0077] For example, Figure 4 As shown, the capacitor CSt includes a first electrode CE1 and a second electrode CE2, the second electrode CE2 is connected to the power line 122, and the first electrode CE1 is connected to the first gate electrode G1 of the first thin film transistor T1 and the third drain electrode D3 of the third thin film transistor T3.

[0078] The following will Figure 4 A working mode of the pixel driving circuit shown is schematically described. First, when a reset signal is transmitted to the second gate line GLn-1 and the seventh thin film transistor T7 is turned on, the residual current flowing through the anode of each sub-pixel is discharged to the fourth thin film transistor T4 through the seventh thin film transistor T7, thereby suppressing the luminescence caused by the residual current flowing through the anode of each sub-pixel. Then, when an initialization signal is transmitted to the second gate line GLn-1 and an initialization signal is transmitted to the initialization line RL, the fourth thin film transistor T4 is turned on, and the initialization voltage Vint is applied to the first gate G1 of the first thin film transistor T1 and the second electrode CE2 of the capacitor Cst through the fourth thin film transistor T4, so that the first gate G1 and the capacitor Cst are initialized. The initialization of the first gate G1 can turn on the first thin film transistor T1. It should be noted that the above-mentioned reset signal and the above-mentioned initialization signal can be the same signal.

[0079] Subsequently, when a gate signal is transmitted to the first gate line GLn and a data signal is transmitted to the data line 121, the second thin film transistor T2 and the third thin film transistor T3 are turned on, and the data voltage Vd is applied to the first gate electrode G1 through the second thin film transistor T2, the first thin film transistor T1, and the third thin film transistor T3. At this time, the voltage applied to the first gate electrode G1 is the compensation voltage Vd+Vth, and the compensation voltage applied to the first gate electrode G1 is also applied to the first electrode CE1 of the capacitor Cst.

[0080] Subsequently, the power line 122 applies the driving voltage Vel to the second electrode CE2 of the capacitor Cst and applies the compensation voltage Vd+Vth to the first electrode CE1, so that charges corresponding to the difference between the voltages respectively applied to the two electrodes of the capacitor Cst are stored in the capacitor Cst, and the first thin film transistor T1 is turned on for a predetermined time.

[0081] Subsequently, when a transmission control signal is applied to the transmission control line EM, both the fifth thin-film transistor T5 and the sixth thin-film transistor T6 are turned on, causing the fifth thin-film transistor T5 to apply a driving voltage Vel to the first thin-film transistor T1. When the driving voltage Vel passes through the first thin-film transistor T1 conducted by the capacitor Cst, the difference between the corresponding driving voltage Vel and the voltage applied to the first gate G1 through the capacitor Cst drives a current Id to flow through the first drain D1 of the first thin-film transistor T1. The driving current Id is applied to each sub-pixel through the sixth thin-film transistor T6, causing the light-emitting layer of each sub-pixel to emit light.

[0082] Figures 5A - 5E FIG. is a schematic diagram of each layer of a pixel driving circuit according to an embodiment of the present disclosure. The pixel driving circuit 220 includes the above-mentioned thin-film transistors T1, T2, T3, T4, T5, T6, and T7, gate lines GLn, GLn-1 connected to the plurality of thin-film transistors T1, T2, T3, T4, T5, T6, and T7, a transmission control line EM, an initialization line RL, a data line 121, a power supply line 122, and a capacitor Cst. Below, in conjunction with Figures 5A - 5E The structure of the pixel driving circuit 220 will be described.

[0083] For example, Figure 5A FIG. shows the semiconductor layer 310 of the pixel driving circuit 220. The semiconductor layer 310 can be formed by patterning a semiconductor material. The semiconductor layer 310 can be used to fabricate the active layers of the above-mentioned thin-film transistors T1, T2, T3, T4, T5, T6, and T7. Each active layer can include a source region, a drain region, and a channel region between the source region and the drain region. For example, the semiconductor layer 310 can be fabricated using amorphous silicon, polycrystalline silicon, oxide semiconductor materials, etc. It should be noted that the above-mentioned source region and drain region can be regions doped with n-type impurities or p-type impurities.

[0084] In the display substrate provided by the embodiment of the present disclosure, a gate insulating layer (not shown) is formed on the above-mentioned semiconductor layer to protect the above-mentioned semiconductor layer. Figure 5B FIG. shows the first conductive layer 320 of the pixel driving circuit 220. The first conductive layer 320 is disposed on the gate insulating layer and is thus insulated from the semiconductor layer 310. The first conductive layer 320 can include the first electrode CE1 of the capacitor Cst, the gate lines GLn, GLn-1, the transmission control line EM, and the gates of the thin-film transistors T1, T2, T3, T4, T5, T6, and T7 (for example, the above-mentioned first gate G1, second gate G2, third gate G3, fourth gate G4, fifth gate G5, sixth gate G6, and seventh gate G7). As Figure 5BAs shown, the gates of thin film transistors T2, T4, T5, T6 and T7 are the overlapping portions of gate lines GLn, GLn-1 and the semiconductor layer 310. The thin film transistor T3 can be a thin film transistor with a double gate structure. One gate of the thin film transistor T3 can be the overlapping portion of the gate line GLn and the semiconductor layer 310, and the other gate of the thin film transistor T3 can be a protruding portion protruding from the gate line GLn; the gate of the thin film transistor T1 can be the first electrode CE1.

[0085] In the display substrate provided by the embodiment of the present disclosure, an insulating layer (not shown) is formed on the above-mentioned first conductive layer to protect the above-mentioned first conductive layer. Figure 5C The second conductive layer 330 of the pixel driving circuit 220 is shown. The second conductive layer 330 includes the second electrode CE2 of the capacitor Cst and the initialization line RL. The second electrode CE2 overlaps at least partially with the first electrode CE1 to form the capacitor Cst.

[0086] In the display substrate provided by the embodiment of the present disclosure, a first protective layer (not shown) is formed on the above-mentioned second conductive layer to protect the above-mentioned second conductive layer. Figure 5D The third conductive layer 340 of the pixel driving circuit 220 is shown. The third conductive layer 340 includes the data line 121 and the power line 122. Figure 5E It is a schematic diagram of the stacked positional relationship of the above-mentioned semiconductor layer 310, first conductive layer 320, second conductive layer 330 and third conductive layer 340. As Figure 5D and 5EAs shown, the data line 121 is connected to the source region of the thin-film transistor T2 in the semiconductor layer 310 through at least one via in the gate insulating layer, the insulating layer, and the first protective layer (e.g., the first via 381). The power line 122 is connected to the source region of the corresponding thin-film transistor T5 in the semiconductor layer 310 through at least one via in the gate insulating layer, the insulating layer, and the first protective layer (e.g., the second via 382). The power line 122 is connected to the second electrode CE2 in the second conductive layer 330 through at least one via in the first protective layer (e.g., two third vias 383). The third conductive layer 340 further includes a first connection portion 341, a second connection portion 342, and a third connection portion 343. One end of the first connection portion 341 is connected to the drain region of the corresponding third thin-film transistor T3 in the semiconductor layer 310 through at least one via in the gate insulating layer, the insulating layer, and the first protective layer (e.g., the fourth via 384), and the other end of the first connection portion 341 is connected to the gate of the first thin-film transistor T1 in the first conductive layer 320 through at least one via in the insulating layer and the first protective layer (e.g., the fifth via 385). One end of the second connection portion 342 is connected to the initialization line RL through a via in the first protective layer (e.g., the sixth via 386), and the other end of the second connection portion 342 is connected to the drain region of the seventh thin-film transistor T7 in the semiconductor layer 310 through at least one via in the gate insulating layer, the insulating layer, and the first protective layer (e.g., the seventh via 387). The third connection portion 343 is connected to the drain region of the sixth thin-film transistor T6 in the semiconductor layer 310 through at least one via in the gate insulating layer, the insulating layer, and the first protective layer (e.g., the eighth via 388).

[0087] In the display substrate provided by the embodiment of the present disclosure, a second protective layer (not shown) is formed on the above-mentioned third conductive layer to protect the above-mentioned third conductive layer. The anodes of the respective sub-pixels may be provided on the second protective layer.

[0088] An embodiment of the present disclosure provides a display substrate. Figure 6 It is a schematic plan view of a display substrate provided by an embodiment of the present disclosure. As Figure 6As shown in the figure, the display substrate includes a substrate 101, a plurality of sub-pixel groups 110, and a plurality of signal line groups 120. The plurality of sub-pixel groups 110 and the plurality of signal line groups 120 are disposed on the substrate 101; the plurality of signal line groups 120 are arranged at intervals in a first direction; at least one signal line 1200 extends in a second direction intersecting the first direction; each sub-pixel group 110 includes a first sub-pixel 111, and the first sub-pixel 111 includes a first anode 1110; the first anode 1110 overlaps with two adjacent signal line groups 120. That is to say, the orthographic projection of the first anode 1110 on the plane where the signal line groups 120 are located overlaps with two adjacent signal line groups 120. It should be noted that in the display field, a pixel usually includes a plurality of sub-pixels that can respectively display monochromatic colors (such as red, green, or blue), and different colors are displayed by controlling the ratio of sub-pixels of different colors. Therefore, the above-mentioned first sub-pixel is a monochromatic sub-pixel; in addition, the above-mentioned signal line group refers to a set of at least part of the signal lines shared by the driving circuits of the sub-pixels in the same column.

[0089] For example, as Figure 6 shown, the first sub-pixel 111 includes a first effective light-emitting region 1115, the first anode 1110 includes a first main body 1112, the first main body 1112 at least partially overlaps with the first effective light-emitting region 1115, the dimension of the first main body 1112 in the first direction is greater than the dimension of the first main body 1112 in the second direction, and the overlap of the above-mentioned first anode 1110 with two adjacent signal line groups 120 may be the overlap of the first main body 1112 with two adjacent signal line groups 120. In the display substrate provided by the embodiment of the present disclosure, since the first anode overlaps with two adjacent signal line groups, two protrusions may be formed at the position where the first anode overlaps with two adjacent signal line groups, and these two protrusions can reduce the asymmetry of the light emission of the first anode and the light-emitting layer on the first anode, and even eliminate the asymmetry of the light emission of the first anode and the light-emitting layer on the first anode, thereby improving, and even eliminating, the color shift phenomenon generated when observing from the left and right sides of the normal line of the display substrate at the same angle as the normal line of the display substrate. It should be noted that the left and right sides of the normal line of the above-mentioned display substrate may be the two sides in the extending direction of the signal line group.

[0090] For example, as Figure 3 shown, the signal line group may be composed of a data line 121 and a power supply 122, and the first anode 1110 of the first sub-pixel 111 overlaps with two adjacent signal line groups.

[0091] Figure 7 is a schematic structural diagram of another display substrate provided according to an embodiment of the present disclosure. As Figure 7As shown, since the first anode 1110 overlaps with two adjacent signal line groups 120, two protrusions 170 are formed at the positions where the first anode 1110 overlaps with the two adjacent signal line groups 120. It can be seen that, compared with the case of only one protrusion, these two protrusions 170 can reduce the asymmetry of the light emission of the first anode 1110 and the light-emitting layer on the first anode 1110, and even eliminate the asymmetry of the light emission of the first anode and the light-emitting layer on the first anode, so as to improve, and even eliminate the color shift phenomenon generated when observing from the left and right sides of the normal line of the display substrate at the same angle as the normal line of the display substrate.

[0092] For example, in some examples, the ratio of the size of the first main body portion 1112 in the first direction to the size of the first main body portion 1112 in the second direction is γ1, and the value range of γ1 is 1.2 - 3. For example, in some examples, as Figure 6 shown, the orthographic projection of the signal lines 1200 in the two signal line groups 120 overlapping with the first anode 1110 on the substrate 101 extends in the second direction and passes through the orthographic projection of the first anode 1110 on the substrate 101. That is to say, the signal lines in the two signal line groups overlapping with the first anode extend and pass through the first anode, so that the protrusions formed by the first anode also pass through the first anode along the second direction.

[0093] For example, in some examples, as Figure 6 shown, each signal line 1200 can extend outside the display area of the display substrate. At this time, each signal line 1200 can include an end portion 1209 connected to an external driving circuit. For example, when the signal line is a data line, the signal line can include an end portion connected to a data driver.

[0094] For example, in some examples, the substrate 101 can be a transparent substrate; for example, the substrate 101 can be a glass substrate, a plastic substrate, a quartz substrate, etc. Of course, the embodiments of the present disclosure include but are not limited to this, and the material of the substrate 101 can be selected according to actual situations and requirements.

[0095] For example, in some examples, as Figure 6 and 7As shown, the first sub-pixel 111 includes a first effective light-emitting region 1115. The first anode 1110 includes a first main body portion 1112. The first main body portion 1112 at least partially overlaps with the first effective light-emitting region 1115. The dimension of the first main body portion 1112 in the first direction is greater than the dimension of the first main body portion 1112 in the second direction. The positions of the two signal line groups 120 overlapping with the first anode 1110 are located at both ends of the first main body portion 1112 in the first direction. At this time, since the positions of the two signal line groups 120 overlapping with the first anode 1110 are located at both ends of the first main body portion 1112 in the first direction and do not pass through the center of the first main body portion 1112, the symmetry of the two protrusions 170 formed at the positions where the first anode 1110 overlaps with the adjacent two signal line groups 120 is relatively high, thereby improving, or even eliminating, the color shift phenomenon generated when observing from the left and right sides of the normal line of the display substrate at the same angle as the normal line of the display substrate. It should be noted that Figure 6 only shows the first main body portion of the first anode in

[0096] For example, in some examples, such as Figure 6 and 7 shown, the shape of the orthographic projection of the first main body portion 1112 on the substrate 101 is generally elongated, and the extending direction of the first main body portion 1112 intersects with the second direction.

[0097] For example, in some examples, such as Figure 6 and 7 shown, the extending direction of the first main body portion 1112 is substantially perpendicular to the second direction. It should be noted that the above "substantially perpendicular" means that the included angle range between the extending direction of the first main body portion and the second direction is between 85 - 90 degrees.

[0098] For example, in some examples, such as Figure 6 and 7 shown, the positions of the two signal line groups 120 overlapping with the first anode 1110 are substantially axisymmetric about the first bisector of the first main body portion 1112, and the first bisector is parallel to the second direction. At this time, as Figure 7 shown, the first anode 1110 forms two symmetrically positioned protrusions 170 at the positions where it overlaps with the adjacent two signal line groups 120. These two protrusions 170 can further effectively reduce, or even eliminate, the asymmetry of the light emission of the first anode and the light-emitting layer on the first anode, thereby improving, or even eliminating, the color shift phenomenon generated when observing from the left and right sides of the normal line of the display substrate at the same angle as the normal line of the display substrate.

[0099] It should be noted that since the signal line group includes at least one signal line, that is, there is a case where the signal line group includes multiple signal lines, the positions of the above two signal line groups being approximately axially symmetric with respect to the first bisector of the first main body part refer to the positions of the two signal line groups rather than the two signal line groups themselves being approximately axially symmetric with respect to the first bisector of the first main body part. Additionally, the position where the signal line group is located can be the geometric center of the signal line group. For example, it can be the geometric center of the orthographic projection of the signal line group on the first main body part.

[0100] For example, in some examples, as Figure 6 shown, in each signal line group 1200, the first signal line 121 and the second signal line 122 are arranged in sequence, and the arrangement order of the first signal line 121 and the second signal line 122 in two adjacent signal line groups 1200 is the same. Therefore, the positions of the above two signal line groups being approximately axially symmetric with respect to the first bisector of the first main body part refer to the positions of the two signal line groups rather than the two signal line groups themselves being approximately axially symmetric with respect to the first bisector of the first main body part.

[0101] For example, in some examples, as Figure 6 shown, two adjacent signal line groups 120 include a first signal line group 1201 and a second signal line group 1202 arranged along a first direction. In the first signal line group 1201, the first signal line 121 is located on the side of the second signal line 122 away from the second signal line group 1202, and in the second signal line group 1202, the first signal line 121 is located on the side of the second signal line 122 close to the first signal line group 1201.

[0102] For example, in some examples, as Figure 6 shown, the dimension of the first main body part 1112 in the first direction is greater than the dimension of the first main body part 1112 in the second direction. That is to say, the shape of the first main body part 1112 is elongated, such as a hexagon or an ellipse. As Figure 1 shown, since the dimension of a normal anode in the second direction is greater than that in the first direction, usually only one signal line group can be covered; the dimension of the first main body part of the first anode provided in the embodiments of the present disclosure in the first direction is greater than the dimension of the first main body part 1112 in the second direction, so that it can overlap with two adjacent signal line groups under the condition of unchanged area. For example, the first main body part 1112 provided in the embodiments of the present disclosure can be Figure 1 obtained by rotating the main body part of the corresponding anode in the display substrate shown by 90 degrees.

[0103] For example, the size range of the first main body portion 1112 in the first direction can be 45 - 60 microns; the size range of the first main body portion 1112 in the second direction can be 15 - 30 microns. It should be noted that the above sizes are only illustrative examples, and the size of the first main body portion in the embodiments of the present disclosure can be determined according to the size and resolution of the actual product.

[0104] For example, in some examples, such as Figure 6 As shown, the shape of the first main body portion 1112 is generally hexagonal or oval, and the long axis of the hexagon or the long axis of the oval is generally parallel to the first direction. It should be noted that the above "generally parallel" means that the angle between the long axis of the hexagon or the long axis of the oval and the first direction does not exceed 5 degrees.

[0105] It should be noted that the embodiments of the present disclosure include but are not limited to this. The shape of the first main body portion in the embodiments of the present disclosure can also be other strip shapes; in addition, when the shape of the first main body portion is generally hexagonal or oval, the long axis of the hexagon or the long axis of the oval may not be parallel to the first direction either, as long as the positive projection of the first anode on the plane where the signal line group is located overlaps with two adjacent signal line groups.

[0106] For example, in some examples, such as Figure 7 As shown, the display substrate further includes a pixel defining layer 160, which is located on the side of the first anode 1110 away from the substrate 101 and includes a first opening 161. The first sub-pixel 111 further includes a first light-emitting layer 1114, and at least a part of the first light-emitting layer 1114 is located in the first opening 161; the area defined by the first opening 161 is the first effective light-emitting area 1115. The first anode 1110 can drive the first light-emitting layer 1114 to emit light.

[0107] For example, as Figure 7 As shown, the area of the first effective light-emitting area 1115 can be slightly smaller than the area of the first anode 1110. The shape of the first effective light-emitting area 1115 can be similar to the shape of the first main body portion 1112 of the first anode 1110, and the shortest distance range between the edge of the first effective light-emitting area 1115 and the edge of the first main body portion 1112 is 1 - 5 microns.

[0108] It should be noted that the first light-emitting layer 1114 can include the electroluminescent layer itself and other functional layers located on both sides of the electroluminescent layer, such as a hole injection layer, a hole transport layer, an electron injection layer, and an electron transport layer, etc.

[0109] For example, in some examples, such as Figure 7 As shown, the first sub-pixel 111 further includes a first cathode 1116, and the first cathode 1116 is located on the side of the first light-emitting layer 1115 away from the first anode 1112.

[0110] For example, in some examples, as Figure 7 shown, the display substrate further includes: a planarization layer 230, located between the film layer where the plurality of signal line groups 120 are located and the film layer where the first anode 1112 is located. The height range of each signal line group 120 in the direction perpendicular to the substrate 101 is 650 - 850 nanometers, and the thickness range of the planarization layer 230 is 1.4 - 1.6 micrometers. Since the signal line groups are usually made of source-drain metal layers and usually adopt a stacked structure, such as a Ti / Al / Ti stacked structure; therefore, the height (thickness) of each signal line group 120 in the direction perpendicular to the substrate 101 is relatively large, and the planarization layer 230 cannot completely planarize it, resulting in unevenness of the first anode on the planarization layer and the first light-emitting layer on the first anode, and protrusions appear on the first anode and the first light-emitting layer on the first anode. At this time, the display substrate can effectively reduce, or even eliminate, the asymmetry of the light emission of the first sub-pixel, thereby improving, or even eliminating, the color shift phenomenon generated when observing from the left and right sides of the normal of the display substrate at the same angle as the normal of the display substrate.

[0111] For example, in some examples, as Figure 7 shown, the display substrate further includes: a pixel driving circuit 220, the pixel driving circuit 220 is located between the substrate 101 and the planarization layer 230, and includes the above-mentioned signal line groups 120. That is to say, the signal line groups 120 can be a part of the pixel driving circuit 220. For example, the signal line groups 120 can be a set of signal lines formed by source-drain metal layers in the pixel driving circuit 220. Of course, the pixel driving circuit in the embodiments of the present disclosure can refer to the usual design. For example, the pixel driving circuit can further include structures such as thin-film transistors and capacitors, which are not described in detail in the embodiments of the present disclosure.

[0112] For example, in some examples, as Figure 6 and 7 shown, each signal line group 120 includes two signal lines 1200, and the first anode 1110 overlaps with four signal lines 1200 in two adjacent signal line groups 120.

[0113] For example, in some examples, as Figure 6 and 7 shown, at least one signal line 1200 included in each signal line group 120 includes a first signal line 121 and a second signal line 122, and the distance between the first signal line 121 and the second signal line 122 in one signal line group 120 is less than the distance between two adjacent signal line groups 120. At this time, since the distance between the data line 121 and the power line 122 in one signal line group 120 is small, this signal line group 120 will cause a protrusion 170 to be formed at the position where the first effective light-emitting region 1110 overlaps with the signal line group 120.

[0114] It should be noted that the distance between the first signal line 121 and the second signal line 122 in a signal line group 120 can be the width of the interval between the first signal line 121 and the second signal line 122 in a signal line group 120. Additionally, in an actual display substrate, due to the limitations of the pixel circuit design and manufacturing process, the first signal line is not an elongated straight line with a uniform width everywhere, nor is the second signal line an elongated straight line with a uniform width everywhere. The above-mentioned distance between the first signal line 121 and the second signal line 122 can be the average width of the interval between the first signal line 121 and the second signal line 122, and the distance between two adjacent signal line groups 120 can also be the average width of the interval between two adjacent signal line groups 120.

[0115] For example, in some examples, as Figure 6 and 7 shown, each signal line group 120 includes a data line 121 for transmitting data signals and a power line 122 for transmitting driving voltages, that is, the first signal line 121 can be a data line, and the second signal line 122 can be a power line 122.

[0116] For example, in some examples, as Figure 6 and 7 shown, in a signal line group 120, the data line 121 and the power line 122 are arranged in sequence in the first direction, that is, in the direction from the Figure 6 left side to the right side. The data line 121 is located on the left side of the power line 122. The arrangement order of the data lines 121 and the power lines 122 in different signal line groups 120 is the same. Therefore, in the display substrate provided by the embodiments of the present disclosure, the positions of the two signal line groups overlapping with the first anode 1110 are approximately axisymmetric with respect to the first bisector of the first anode 1110, rather than the two signal line groups themselves being approximately axisymmetric with respect to the first bisector of the first anode 1110.

[0117] For example, in some examples, as Figure 6 and 7 shown, when the signal line group 120 includes multiple data lines 1200, the multiple data lines 1200 are arranged at intervals and are approximately parallel. For example, when the signal line group 120 includes a data line 121 and a power line 122, the data line 121 and the power line 122 are arranged at intervals and are approximately parallel.

[0118] For example, in some examples, the width range of the data line 121 is 2.5 - 3 microns, the width range of the power line 122 is 4 - 6 microns, and the distance range between the data line 121 and the power line 122 is 3 - 4 microns.

[0119] For example, in some examples, the spacing between adjacent data lines ranges from 23 to 35 micrometers; the spacing between adjacent power lines ranges from 23 to 35 micrometers; the length of the first main body portion 1112 in the first direction ranges from 45 to 60 micrometers, so as to cover two adjacent signal line groups 120.

[0120] For example, in some examples, as Figure 6 shown, the above-mentioned first direction is perpendicular to the above-mentioned second direction.

[0121] For example, in some examples, as Figure 6 shown, each sub-pixel group 120 further includes a second sub-pixel 112, and the second sub-pixel 112 includes a second anode 1120, and the second anode 1120 overlaps with two adjacent signal line groups 120.

[0122] In the display substrate provided by the embodiment of the present disclosure, since the second anode overlaps with two adjacent signal line groups, two protrusions can be formed at the positions where the second anode overlaps with the two adjacent signal line groups. These two protrusions can reduce the asymmetry of the light emission of the second anode and the light-emitting layer on the second anode, and even eliminate the asymmetry of the light emission of the second anode and the light-emitting layer on the second anode, so as to further improve, and even eliminate the color shift phenomenon generated when observing from the left and right sides of the normal line of the display substrate at the same angle as the normal line of the display substrate.

[0123] Figure 8 It is a schematic structural diagram of another display substrate provided according to an embodiment of the present disclosure. As Figure 8 shown, since the second anode 1120 overlaps with two adjacent signal line groups 120, two protrusions 175 are formed at the positions where the second anode 1120 overlaps with the two adjacent signal line groups 120. It can be seen that compared with the case of only one protrusion, these two protrusions 175 can reduce the asymmetry of the light emission of the second anode 1120 and the light-emitting layer on the second anode 1120, and even eliminate the asymmetry of the light emission of the second anode and the light-emitting layer on the second anode, so as to further improve, and even eliminate the color shift phenomenon generated when observing from the left and right sides of the normal line of the display substrate at the same angle as the normal line of the display substrate.

[0124] For example, in some examples, as Figure 6 shown, the positive projection of the signal lines 1200 in the two signal line groups 120 overlapping with the second anode 1120 on the substrate substrate 101 extends in the second direction and passes through the positive projection of the second anode 1120 on the substrate substrate 101.

[0125] For example, in some examples, as Figure 6 and 8As shown, the second sub-pixel 112 includes a second effective light-emitting region 1125, the second anode 1120 includes a second main body portion 1122, the second main body portion 1122 at least partially overlaps with the second effective light-emitting region 1125, the size of the second main body portion 1122 in the first direction is greater than the size of the second main body portion 1122 in the second direction, and the positions of the two signal line groups 120 overlapping with the second anode 1120 are located at both ends of the second main body portion 1122 in the first direction. At this time, since the positions of the two signal line groups 120 overlapping with the second anode 1120 are located at both ends of the second main body portion 1122 in the first direction, the symmetry of the two protrusions 175 formed at the positions where the second anode 1120 overlaps with the adjacent two signal line groups 120 is relatively high, thereby improving, or even eliminating, the color shift phenomenon generated when observing from the left and right sides of the normal line of the display substrate at the same angle as the normal line of the display substrate. It should be noted that Figure 6 only shows the second main body portion of the second anode.

[0126] For example, in some examples, such as Figure 6 and 8 shown, the shape of the orthographic projection of the second main body portion 1122 on the substrate 101 is generally elongated, and the extending direction of the second main body portion intersects with the second direction.

[0127] For example, in some examples, such as Figure 6 and 8 shown, the extending direction of the second main body portion is substantially perpendicular to the second direction.

[0128] For example, in some examples, such as Figure 6 and 8 shown, the positions of the two signal line groups 120 overlapping with the second anode 1120 are substantially axisymmetric about the second bisector of the second main body portion 1122, and the second bisector is parallel to the second direction. At this time, as Figure 8 shown, the second anode 1120 forms two symmetrically positioned protrusions 175 at the positions where it overlaps with the adjacent two signal line groups 120, and these two protrusions 175 can further effectively reduce the asymmetry of the light emission of the second anode and the light-emitting layer on the second anode, or even eliminate the asymmetry of the light emission of the second anode and the light-emitting layer on the second anode, thereby further improving, or even eliminating, the color shift phenomenon generated when observing from the left and right sides of the normal line of the display substrate at the same angle as the normal line of the display substrate.

[0129] For example, in some examples, such as Figure 6 shown, the size of the second main body portion 1122 in the first direction is greater than the size of the second main body portion 1122 in the second direction. That is to say, the shape of the second main body portion 1122 is elongated, such as hexagonal or oval. As Figure 1As shown, since the size of a normal anode in the second direction is larger than that in the first direction, it can usually cover only one signal line group; the size of the second main body portion of the second anode provided in the embodiments of the present disclosure in the first direction is larger than that in the second direction, so that it can overlap with two adjacent signal line groups under the condition of unchanged area. For example, the second main body portion provided in the embodiments of the present disclosure can be Figure 1 obtained by rotating the main body portion of the corresponding anode in the display substrate shown by 90 degrees.

[0130] For example, in some examples, such as Figure 6 and 8 shown, each signal line group 120 includes two signal lines 1200, and the second anode 1120 overlaps with four signal lines 1200 in two adjacent signal line groups 120. For example, the size range of the first main body portion 1112 in the first direction can be 45-55 micrometers; the size range of the first main body portion 1112 in the second direction can be 12-20 micrometers. It should be noted that the above sizes are only illustrative examples, and the size of the second main body portion in the embodiments of the present disclosure can be determined according to the size and resolution of the actual product.

[0131] For example, in some examples, such as Figure 6 shown, the shape of the second main body portion 1122 is generally hexagonal or elliptical, and the long axis of the hexagon or the long axis of the ellipse is generally parallel to the first direction. It should be noted that the above "generally parallel" means that the included angle between the long axis of the hexagon or the long axis of the ellipse and the first direction does not exceed 5 degrees.

[0132] It should be noted that the embodiments of the present disclosure include but are not limited to this. The shape of the second main body portion in the embodiments of the present disclosure can also be other strip shapes; in addition, when the shape of the second main body portion is generally hexagonal or elliptical, the long axis of the hexagon or the long axis of the ellipse may not be parallel to the first direction either, as long as the positive projection of the second anode on the plane where the signal line group is located overlaps with two adjacent signal line groups.

[0133] For example, in some examples, such as Figure 6 shown, the display substrate further includes a pixel defining layer 160, which is located on the side of the second anode 1120 away from the substrate 101 and includes a second opening 162. The first sub-pixel 112 further includes a second light-emitting layer 1124, and at least a part of the second light-emitting layer 1124 is located in the second opening 162; the area defined by the second opening 162 is the second effective light-emitting area 1125. The second anode 1120 can drive the second light-emitting layer 1124 to emit light.

[0134] For example, as Figure 8As shown, the area of the second effective light-emitting region 1125 can be slightly smaller than the area of the second anode 1120. The shape of the second effective light-emitting region 1125 can be similar to the shape of the second main body portion 1122 of the second anode 1120, and the shortest distance between the edge of the second effective light-emitting region 1125 and the edge of the second main body portion 1122 ranges from 1 to 5 micrometers.

[0135] It should be noted that the second light-emitting layer 1124 can include the electroluminescent layer itself and other functional layers located on both sides of the electroluminescent layer, such as a hole injection layer, a hole transport layer, an electron injection layer, and an electron transport layer.

[0136] For example, in some examples, as Figure 8 shown, the second sub-pixel 112 further includes a second cathode 1126, and the second cathode 1126 is located on the side of the second light-emitting layer 1125 away from the second anode 1122.

[0137] For example, in some examples, as Figure 6 shown, each sub-pixel group 110 further includes a third sub-pixel pair 116; the third sub-pixel pair 116 includes two third sub-pixels 113; each third sub-pixel 113 includes a third anode 1130, and the two third anodes 1130 of the third sub-pixel pair 116 respectively overlap with a signal line group 120, and the two signal line groups 120 overlapping with the two third anodes 1130 of the third sub-pixel pair 116 are adjacent, that is, two adjacent signal line groups 120. Figure 9A It is a schematic structural diagram of another display substrate provided according to an embodiment of the present disclosure. As Figure 9A shown, regarding the third sub-pixel pair 116 as a whole, since the two third anodes 1130 of the third sub-pixel pair 116 respectively overlap with a signal line group 120, and the two signal line groups 120 overlapping with the two third anodes 1130 of the third sub-pixel pair 116 are adjacent, two protrusions 179 are formed at the positions where the two third anodes 1130 of the third sub-pixel pair 116 respectively overlap with the adjacent two signal line groups 120. These two protrusions 179 can reduce the asymmetry of the light emission of the third sub-pixel pair 116, and even eliminate the asymmetry of the light emission of the third sub-pixel pair 116, thereby further improving, and even eliminating the color shift phenomenon generated when observing from the left and right sides of the normal line of the display substrate at the same angle as the normal line of the display substrate.

[0138] For example, in some examples, as Figure 6 shown, the signal line 1200 in the signal line group 120 overlapping with the third anode 1130 extends in the second direction and passes through the orthographic projection of the third anode 1130 on the substrate 101 on the substrate 101.

[0139] For example, in some examples, as Figure 6As shown, the third sub-pixel 113 includes a third effective light-emitting region 1135, and the third anode 1130 includes a third main body 1132. The third main body 1132 at least partially overlaps with the third effective light-emitting region 1135. Two signal line groups 120 overlapping with the two third anodes 1130 of the third sub-pixel pair 116 are substantially axially symmetric about the third bisector of the central connection line of the two third main bodies 1132, and the third bisector is parallel to the second direction. At this time, as Figure 9A shown, two protrusions 179 that are symmetric in position are formed at the positions where the two anodes 1130 or the two third effective light-emitting regions 1135 overlap with the adjacent two signal line groups 120. These two protrusions 179 can further effectively reduce the asymmetry of the light emission of the third sub-pixel pair 116, and even eliminate the asymmetry of the light emission of the third sub-pixel pair 116, so that the color shift phenomenon generated when observing from the left and right sides of the normal line of the display substrate at the same angle as the normal line of the display substrate can be further improved or even eliminated.

[0140] For example, in some examples, as Figure 6 shown, each signal line group 120 includes two signal lines 1200. The two third anodes 1130 of the third sub-pixel pair 116 respectively overlap with the two signal lines 1200 in a signal line group 1200, and the two signal line groups 120 overlapping with the two third anodes 1130 of the third sub-pixel pair 116 are adjacent. For example, in some examples, as Figure 6 shown, a plurality of sub-pixel groups 110 are arranged in the second direction to form a plurality of sub-pixel group columns 210, and are arranged in the first direction to form a plurality of sub-pixel group rows 310. Two adjacent sub-pixel group columns 210 are arranged with a 1 / 2 pitch offset, and are arranged with a 1 / 2 pitch offset in the second direction. The above-mentioned pitch is equal to the distance between the centers of the two first sub-pixels 111 in two adjacent sub-pixel groups 110 in the second direction. In each sub-pixel group 110, the first sub-pixel 111, the second sub-pixel 112, and the third sub-pixel pair 116 are arranged in the second direction, and the two third sub-pixels 113 in the third sub-pixel pair 116 are arranged in the first direction. That is to say, each sub-pixel group can be a repeating unit in the display substrate.

[0141] For example, in some examples, the first sub-pixel 111 is configured to emit light of a first color, the second sub-pixel 112 is configured to emit light of a second color, and the third sub-pixel 113 is configured to emit light of a third color.

[0142] For example, in some examples, the first color is blue, the second color is red, and the third color is green. Thus, the display substrate has an arrangement structure of red, green, and blue sub-pixels. Of course, the embodiments of the present disclosure include but are not limited to this. The above-mentioned first color, second color, and third color can also be other colors.

[0143] For example, in some examples, as Figure 6 shown, the shape of the third main body portion 1132 is generally pentagonal, and the right-angle side of the pentagon is substantially parallel to the second direction.

[0144] For example, in some examples, the dimension of the third main body portion 1132 in the first direction ranges from 23 to 27 microns, and the dimension of the third main body portion 1132 in the second direction ranges from 18 to 22 microns.

[0145] For example, in some examples, as Figure 9A shown, when the sub-pixel group 110 includes the third sub-pixel 113, the third sub-pixel 113 further includes a third light-emitting layer 1134; at this time, the pixel defining layer 160 further includes a third opening 163, the third opening 163 exposes the third anode 1130, at least a part of the third light-emitting layer 1134 is located in the third opening 163 and covers the exposed part of the third anode 1130, and the area defined by the third opening 163 is the third effective light-emitting area 1135 of the third sub-pixel 113.

[0146] It should be noted that the area of the third main body portion 1132 of the third anode 1130 may be slightly larger than the area of the third light-emitting layer 1134. In addition, the third light-emitting layer 1134 may include the electro-luminescent layer itself and other functional layers on both sides of the electro-luminescent layer, for example, a hole injection layer, a hole transport layer, an electron injection layer, an electron transport layer, and the like.

[0147] Figure 9B It is a schematic structural diagram of another display substrate provided according to an embodiment of the present disclosure. For example, as Figure 9B shown, in one third sub-pixel pair 116, two third effective light-emitting areas 1135 may share a third opening 163, that is to say, the area of the third opening 163 is slightly larger than the area of the two third effective light-emitting areas 1135, and the area of the light-emitting layer in the third opening 1135 may be slightly larger than the area of the two third main body portions 1132. At this time, the third effective light-emitting area 1135 may be the overlapping area of the third opening 163 and the third main body portion 1132.

[0148] For example, in some examples, as Figure 9B shown, each third sub-pixel 113 further includes a third cathode 1136, and the third cathode 1136 is located on the side of the third light-emitting layer 1135 away from the third anode 1132.

[0149] It should be noted that each of the above-mentioned effective light-emitting regions (e.g., the first effective light-emitting region, the second effective light-emitting region, or the third effective light-emitting region) is generally designed to have a regular shape, such as the above-mentioned hexagon, pentagon, or ellipse. However, in the actual manufacturing process, the shape of the formed effective light-emitting region generally has a certain deviation from the regular shape designed above. For example, the corners of the above-mentioned regular shape may become rounded corners. Therefore, the shape of each of the above-mentioned effective light-emitting regions (e.g., the first effective light-emitting region, the second effective light-emitting region, or the third effective light-emitting region) can be a rounded-corner figure. In addition, the shape of the actually manufactured effective light-emitting region may also have other variations from the designed shape. For example, the shape of the effective light-emitting region designed as a hexagon may become approximately an ellipse in actual manufacturing.

[0150] For example, in some examples, as Figure 6 shown, when the first sub-pixel 111 is a blue sub-pixel, the second sub-pixel 112 is a red sub-pixel, and the third sub-pixel 113 is a green sub-pixel, the area of the first light-emitting layer 1114 of the first sub-pixel 111 and the area of the second light-emitting layer 1124 of the second sub-pixel 112 are both larger than the area of the third light-emitting layer 1134 of a single third sub-pixel 113, and the area of the first light-emitting layer 1114 of the first sub-pixel 111 is larger than the area of the second light-emitting layer 1124 of the second sub-pixel 112.

[0151] An embodiment of the present disclosure provides a display substrate, as Figure 6As shown, the display substrate includes: a substrate 101, and a plurality of sub-pixel groups 110 and a plurality of signal line groups 120 disposed on the substrate 101; the plurality of signal line groups 120 are arranged at intervals in a first direction, and each signal line group 120 includes a first signal line 121 and a second signal line 122. Both the first signal line 121 and the second signal line 122 extend in a second direction intersecting the first direction. In each signal line group 120, the first signal line 121 and the second signal line 122 are arranged in sequence, and the arrangement orders of the first signal line 121 and the second signal line 122 in two adjacent signal line groups 120 are the same; the plurality of sub-pixel groups 110 are arranged in the second direction to form a plurality of sub-pixel group columns, and are arranged in the first direction to form a plurality of sub-pixel group rows. Two adjacent sub-pixel group columns are arranged with a 1 / 2 pitch offset. The pitch is equal to the distance between the centers of two first sub-pixels in two adjacent sub-pixel groups in the second direction. Each sub-pixel group 110 includes a first sub-pixel 111, a second sub-pixel 112, and a third sub-pixel pair 116. The third sub-pixel pair 116 includes two third sub-pixels 113. In each sub-pixel group 110, the first sub-pixel 111, the second sub-pixel 112, and the third sub-pixel pair 116 are arranged in the second direction, and the two third sub-pixels 113 in the third sub-pixel pair 116 are arranged in the first direction. The first sub-pixel 111 includes a first anode 1110, the second sub-pixel 112 includes a second anode 1120, the third sub-pixel 113 includes a third anode 1130. The first anode 1110 overlaps with two adjacent signal line groups 120, the second anode 1120 overlaps with two adjacent signal line groups 120, and the two third anodes 1130 of the third sub-pixel pair 116 respectively overlap with a signal line group 120. The two signal line groups 120 overlapping with the two third anodes 1130 of the third sub-pixel pair 116 are adjacent. An embodiment of the present disclosure further provides a display device. The display device includes the above-mentioned display substrate. Therefore, the display device also effectively reduces the asymmetry of the light emission of the anodes and the light-emitting layers on the anodes of each sub-pixel (for example, the first anode and the first light-emitting layer on the first anode, the second anode and the second light-emitting layer on the second anode, and the third anode and the first light-emitting layer on the third anode), and even eliminates the asymmetry of the light emission in the effective light-emitting area, thereby improving, and even eliminating, the color shift phenomenon generated when observing from the left and right sides of the normal of the display device at the same angle as the normal of the display substrate, thereby improving the display quality and optimizing the user experience.

[0152] For example, in some examples, the display device may be any product or component having a display function, such as a smart phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, a navigator, etc.

[0153] An embodiment of the present disclosure further provides a display substrate. As Figure 6 and 7As shown, the display substrate includes a substrate 101, a plurality of sub-pixel groups 110 disposed on the substrate 101, and a plurality of signal line groups 120. The plurality of signal line groups 120 are arranged at intervals in a first direction. Each signal line group 120 includes two signal lines 1200; the signal lines 1200 extend in a second direction intersecting the first direction. Each sub-pixel group 110 includes a blue sub-pixel 111 and a red sub-pixel 112. The blue sub-pixel 111 includes a first anode 1110, and the red sub-pixel 112 includes a second anode 1120. The first anode 1110 overlaps four signal lines 1200 in two adjacent signal line groups 120, and the second anode 1120 overlaps four signal lines 1200 in two adjacent signal line groups 120.

[0154] In the display substrate provided by the embodiment of the present disclosure, since both the first anode 1110 of the blue sub-pixel 111 and the second anode 1120 of the red sub-pixel 112 overlap four signal lines 1200 in two adjacent signal line groups 120 at the same time. At this time, even if the first anode 1110 forms a protrusion at the overlapping position with the signal line group 120, the first anode 1110 will form two protrusions at the overlapping positions with two adjacent signal line groups 120. These two protrusions can reduce the asymmetry of the light emission of the first anode 1110 and the light-emitting layer on the first anode 1110, and even eliminate the asymmetry of the light emission of the first anode 1110 and the light-emitting layer on the first anode 1110, thereby improving, and even eliminating, the color shift phenomenon generated when observing from the left and right sides of the normal line of the display substrate at the same angle as the normal line of the display substrate. Similarly, even if the second anode 1120 forms a protrusion at the overlapping position with the signal line group 120, the second anode 1120 will form two protrusions at the overlapping positions with two adjacent signal line groups 120. These two protrusions can reduce the asymmetry of the light emission of the second anode 1120 and the light-emitting layer on the second anode 1120, and even eliminate the asymmetry of the light emission of the second anode 1110 and the light-emitting layer on the second anode 1120, thereby further improving, and even eliminating, the color shift phenomenon generated when observing from the left and right sides of the normal line of the display substrate at the same angle as the normal line of the display substrate.

[0155] For example, in some examples, the two signal lines 1200 included in each signal line group 120 may be a data line 121 and a power line 122. The data line is used to transmit or write data, and the power line is a power line used to transmit a driving voltage. Since the data line and the power line are relatively thick, the planarization layer covering the data line and the power line cannot completely planarize the display substrate, resulting in unevenness of the anode on the planarization layer and the light-emitting layer on the anode, and thus causing protrusions on the anode and the light-emitting layer on the anode. The display substrate provided by the embodiments of the present disclosure can eliminate the asymmetry of the light emission of the light-emitting layer on the first anode and the second anode by overlapping the first anode and the second anode with four signal lines in two adjacent signal line groups at the same time, thereby further improving or even eliminating the color shift phenomenon generated when observing from the left and right sides of the normal of the display substrate at the same angle as the normal of the display substrate.

[0156] For example, in some examples, as Figure 6 shown, the orthographic projections of the four signal lines 1200 overlapping the first anode 1110 on the substrate 101 extend in the second direction and pass through the orthographic projection of the first anode 1110 on the substrate 101. The orthographic projections of the four signal lines 1200 overlapping the second anode 1120 on the substrate 101 extend in the second direction and pass through the orthographic projection of the second anode 1120 on the substrate 101.

[0157] For example, in some examples, as Figure 6 shown, each sub-pixel group 110 further includes a pair of green sub-pixels 116. Each pair of green sub-pixels 116 includes two green sub-pixels 113. Each green sub-pixel 113 includes a third anode 1130. The two third anodes 1130 of the pair of green sub-pixels 116 of the green sub-pixel pair 116 respectively overlap two signal lines 1200 in a signal line group 120. The two signal line groups 120 overlapping the two third anodes 1130 of the third sub-pixel pair 116 are adjacent. At this time, regarding the third sub-pixel pair 116 as a whole, since the two third anodes 1130 of the third sub-pixel pair 116 respectively overlap a signal line group 120, and the two signal line groups 120 overlapping the two third anodes 1130 of the third sub-pixel pair 116 are adjacent, two protrusions are formed at the positions where the two third anodes 1130 of the third sub-pixel pair 116 respectively overlap the two adjacent signal line groups 120. These two protrusions can reduce or even eliminate the asymmetry of the light emission of the third sub-pixel pair 116, thereby further improving or even eliminating the color shift phenomenon generated when observing from the left and right sides of the normal of the display substrate at the same angle as the normal of the display substrate.

[0158] At least one embodiment of the present disclosure further provides a display substrate. As Figure 6 and 7As shown, the display substrate includes a substrate 101, a plurality of sub-pixel groups 110 disposed on the substrate 101, and a plurality of signal line groups 120. The plurality of signal line groups 120 are arranged at intervals in a first direction. Each signal line group 120 includes a first signal line 121 and a second signal line 122, and the first signal line 121 and the second signal line 122 extend in a second direction intersecting the first direction. Each sub-pixel group 110 includes a first sub-pixel 111, and the first sub-pixel 111 includes a first anode 1110 and a first effective light-emitting region 1115. The first anode 1110 includes a first main body 1112, and the first main body 1112 at least partially overlaps with the first effective light-emitting region 1115. The size of the interval between two adjacent signal line groups 120 in the first direction is 8-10 times the size of the first signal line 121 in the first direction; the size of the first main body 1112 in the first direction is 15-17 times the size of the first signal line 121 in the first direction, and the size of the first main body 1112 in the second direction is 9-11 times the size of the first signal line 121 in the first direction. Since the size of the first main body 1112 in the first direction is 15-17 times the size of the first signal line 121 in the first direction, it can cover two adjacent signal line groups 120. At this time, even if the first anode 1110 forms a protrusion at the position overlapping with the signal line group 120, the first anode 1110 will form two protrusions at the positions overlapping with two adjacent signal line groups 120, and these two protrusions can reduce, or even eliminate, the asymmetry of the light emission of the first anode 1110 and the light-emitting layer on the first anode 1110, thereby improving, or even eliminating, the color shift phenomenon generated when observing from the left and right sides of the normal line of the display substrate at the same angle as the normal line of the display substrate.

[0159] For example, in some examples, the ratio of the size of the first main body 1112 in the first direction to the size of the first main body 1112 in the second direction is γ1, and the value range of γ1 is 1.5-1.7.

[0160] For example, in some examples, each sub-pixel group 110 further includes a second sub-pixel 112. The second sub-pixel 112 includes a second anode 1120 and a second effective light-emitting region 1125. The second anode 1120 includes a second main body portion 1122. The second main body portion 1122 overlaps with the second effective light-emitting region 1125. The size of the gap between two adjacent signal line groups 120 in the first direction is 8-10 times the size of the first signal line 121 in the first direction. The size of the second main body portion 1122 in the first direction is 12-14 times the size of the first signal line in the first direction. The size of the second main body portion in the second direction is 4-6 times the size of the first signal line in the first direction. Since the size of the second main body portion 1122 in the first direction is 12-14 times the size of the first signal line 121 in the first direction, it can cover two adjacent signal line groups 120. At this time, even if the second anode 1120 forms a protrusion at the overlapping position with the signal line group 120, the second anode 1120 will form two protrusions at the overlapping positions with two adjacent signal line groups 120. These two protrusions can reduce, or even eliminate, the asymmetry of the light emission of the second anode 1120 and the light-emitting layer on the second anode 1120, thereby improving, or even eliminating, the color shift phenomenon that occurs when observing from the left and right sides of the normal line of the display substrate at the same angle as the normal line of the display substrate.

[0161] For example, in some examples, the ratio of the size of the second main body portion 1122 in the first direction to the size of the second main body portion 1122 in the second direction is γ2, and the value range of γ2 is 2.2-2.6.

[0162] For example, in some examples, each sub-pixel group 110 further includes a third sub-pixel pair 116. Each third sub-pixel pair 116 includes two third sub-pixels 113. Each third sub-pixel 113 includes a third anode 1130 and a third effective light-emitting region 1135. The third anode 1130 includes a third main body portion 1132. The third main body portion 1132 at least partially overlaps with the third effective light-emitting region 1135. The size of the gap between two adjacent signal line groups 120 in the first direction is 8-10 times the size of the first signal line 121 in the first direction. The size of the third main body portion 1132 in the first direction is 6-8 times the size of the first signal line 121 in the first direction. The size of the third main body portion 1132 in the second direction is 7-9 times the size of the first signal line 121 in the first direction.

[0163] For example, in some examples, the size of the second signal line 122 in the first direction is 1.3-1.4 times the size of the first signal line 121 in the first direction.

[0164] For example, in some examples, the orthographic projection of the first effective light-emitting region 1115 on the substrate 101 falls within the orthographic projection of the first anode 1112 on the substrate 101. The range of the shortest distance between the edge of the orthographic projection of the first effective light-emitting region 1115 on the substrate 101 and the edge of the orthographic projection of the first anode 1112 on the substrate 101 is 1-3 microns. The orthographic projection of the second effective light-emitting region 1125 on the substrate 101 falls within the orthographic projection of the second anode 1122 on the substrate 101. The range of the shortest distance between the edge of the orthographic projection of the second effective light-emitting region 1125 on the substrate 101 and the edge of the orthographic projection of the second anode 1122 on the substrate 101 is 1-3 microns. The orthographic projection of the third effective light-emitting region 1135 on the substrate 101 falls within the orthographic projection of the third anode 1132 on the substrate 101. The range of the shortest distance between the edge of the orthographic projection of the third effective light-emitting region 1135 on the substrate 101 and the edge of the orthographic projection of the third anode 1132 on the substrate 101 is 1-3 microns.

[0165] For example, in some examples, the above-mentioned first sub-pixel is a blue sub-pixel, the above-mentioned second sub-pixel is a red sub-pixel, and the above-mentioned third sub-pixel is a green sub-pixel. At least one embodiment of the present disclosure also provides a display substrate. As Figure 6 and 7 shown, the display substrate includes a substrate 101, a plurality of sub-pixel groups 110 disposed on the substrate 101, and a plurality of signal line groups 120. The plurality of signal line groups 120 are arranged at intervals in a first direction. Each signal line group 120 includes a first signal line 121 and a second signal line 122. The first signal line 121 and the second signal line 122 extend in a second direction intersecting the first direction. Each sub-pixel group 110 includes a blue sub-pixel 111 and a red sub-pixel 112. The blue sub-pixel 111 includes a first anode 1110 and a first effective light-emitting region 1115. The red sub-pixel 112 includes a second anode 1120 and a second effective light-emitting region 1125. The first anode 1110 includes a first main body 1112. The first main body 1112 at least partially overlaps with the first effective light-emitting region 1115. The second anode 1120 includes a second main body 1122. The second main body 1122 at least partially overlaps with the second effective light-emitting region 1125. The shape of the orthographic projection of the first main body 1112 on the substrate 101 is generally strip-shaped. The extending direction of the first main body 1112 intersects the second direction. The shape of the orthographic projection of the second main body 1122 on the substrate 101 is generally strip-shaped. The extending direction of the second main body 1122 intersects the second direction. It should be noted that the extending directions of the above-mentioned first main body and the second main body may be the same as or different from the first direction.

[0166] In the display substrate provided by the embodiments of the present disclosure, since the extending direction of the first main body portion 1112 of the first anode 1110 of the first sub-pixel 111 intersects with the second direction, the first main body portion 1112 can cover two adjacent signal line groups 120; at this time, even if the first anode 1110 forms a protrusion at the overlapping position with the signal line group 120, the first anode 1110 will form two protrusions at the overlapping positions with two adjacent signal line groups 120, and these two protrusions can reduce the asymmetry of the light emission of the first anode 1110 and the light-emitting layer on the first anode 1110, and even eliminate the asymmetry of the light emission of the first anode 1110 and the light-emitting layer on the first anode 1110, thereby improving, or even eliminating, the color shift phenomenon generated when observing from the left and right sides of the normal line of the display substrate at the same angle as the normal line of the display substrate. Similarly, since the extending direction of the second main body portion 1122 of the second anode 1120 of the second sub-pixel 112 intersects with the second direction, the second main body portion 1112 can cover two adjacent signal line groups 120; at this time, even if the second anode 1120 forms a protrusion at the overlapping position with the signal line group 120, the second anode 1120 will form two protrusions at the overlapping positions with two adjacent signal line groups 120, and these two protrusions can reduce the asymmetry of the light emission of the second anode 1120 and the light-emitting layer on the second anode 1120, and even eliminate the asymmetry of the light emission of the second anode 1110 and the light-emitting layer on the second anode 1120, thereby further improving, or even eliminating, the color shift phenomenon generated when observing from the left and right sides of the normal line of the display substrate at the same angle as the normal line of the display substrate.

[0167] For example, in some examples, as Figure 6 shown, the extending direction of the first main body portion 1112 is substantially perpendicular to the second direction, and the extending direction of the second main body portion 1122 is substantially perpendicular to the second direction. At this time, when the lengths (dimensions in their extending directions) of the first main body portion 1112 and the second main body portion 1122 are large enough, it can be ensured that the first main body portion 1112 can cover two adjacent signal line groups 120, and the second main body portion 1122 can cover two adjacent signal line groups 120. It should be noted that the above-mentioned "substantially perpendicular" includes the case where the included angle range between the extending direction of the first main body portion or the second main body portion and the second direction is 85-95 degrees.

[0168] For example, in some examples, as Figure 6 shown, the above-mentioned first direction is perpendicular to the second direction. At this time, the extending direction of the first main body portion 1112 can be substantially parallel to the first direction, and the extending direction of the second main body portion 1122 can be substantially parallel to the first direction. It should be noted that the above-mentioned "substantially parallel" includes the case where the included angle range between the extending direction of the first main body portion or the second main body portion and the first direction is 0-5 degrees.

[0169] For example, in some examples, the size of the gap between two adjacent signal line groups 120 in the first direction is 8-10 times the size of the first signal line 121 in the first direction; the size of the first main body portion 1112 in the first direction is 15-17 times the size of the first signal line 121 in the first direction, and the size of the first main body portion 1112 in the second direction is 9-11 times the size of the first signal line 121 in the first direction. Since the size of the first main body portion 1112 in the first direction is 15-17 times the size of the first signal line 121 in the first direction, it can cover two adjacent signal line groups 120. At this time, even if the first anode 1110 forms a protrusion at the position overlapping with the signal line group 120, the first anode 1110 will form two protrusions at the positions overlapping with two adjacent signal line groups 120, and these two protrusions can reduce the asymmetry of the light emission of the first anode 1110 and the light-emitting layer on the first anode 1110, and even eliminate the asymmetry of the light emission of the first anode 1110 and the light-emitting layer on the first anode 1110, thereby improving, or even eliminating, the color shift phenomenon generated when observing from the left and right sides of the normal line of the display substrate at the same angle as the normal line of the display substrate.

[0170] For example, in some examples, the size of the first signal line 121 in the first direction is 3-4 micrometers.

[0171] For example, in some examples, the size of the gap between two adjacent signal line groups 120 in the first direction is 8-10 times the size of the first signal line 121 in the first direction, the size of the second main body portion 1122 in the first direction is 12-14 times the size of the first signal line in the first direction, and the size of the second main body portion in the second direction is 4-6 times the size of the first signal line in the first direction. Since the size of the second main body portion 1122 in the first direction is 12-14 times the size of the first signal line 121 in the first direction, it can cover two adjacent signal line groups 120. At this time, even if the second anode 1120 forms a protrusion at the position overlapping with the signal line group 120, the second anode 1120 will form two protrusions at the positions overlapping with two adjacent signal line groups 120, and these two protrusions can reduce the asymmetry of the light emission of the second anode 1120 and the light-emitting layer on the second anode 1120, and even eliminate the asymmetry of the light emission of the second anode 1120 and the light-emitting layer on the second anode 1120, thereby improving, or even eliminating, the color shift phenomenon generated when observing from the left and right sides of the normal line of the display substrate at the same angle as the normal line of the display substrate.

[0172] For example, in some examples, the size of the second signal line 122 in the first direction is 1.3-1.4 times the size of the first signal line 121 in the first direction. That is to say, the width of the second signal line 122 is relatively wide, which is convenient for transmitting the driving voltage.

[0173] For example, in some examples, each sub-pixel group 120 further includes a pair of green sub-pixels 116. Each pair of green sub-pixels 116 includes two green sub-pixels 113. Each green sub-pixel 113 includes a third anode 1130 and a third effective light-emitting region 1135. The third anode 1130 includes a third main body 1132. The third main body 1132 at least partially overlaps with the third effective light-emitting region 1135. The third main body 1132 covers a signal line group 120. Two signal line groups 120 overlapping with the two third main bodies 1132 of the pair of green sub-pixels 116 are adjacent. At this time, regarding the pair of third sub-pixels 116 as a whole, since the two third anodes 1130 of the pair of third sub-pixels 116 respectively overlap with a signal line group 120, and the two signal line groups 120 overlapping with the two third anodes 1130 of the pair of third sub-pixels 116 are adjacent, two protrusions are formed at the positions where the two third anodes 1130 of the pair of third sub-pixels 116 respectively overlap with the adjacent two signal line groups 120. These two protrusions can reduce, or even eliminate, the asymmetry of the light emission of the pair of third sub-pixels 116, thereby further improving, or even eliminating, the color shift phenomenon generated when observing from the left and right sides of the normal line of the display substrate at the same angle as the normal line of the display substrate.

[0174] For example, in some examples, the size of the interval between two adjacent signal line groups 120 in the first direction is 8-10 times the size of the first signal line 121 in the first direction. The size of the third main body 1132 in the first direction is 6-8 times the size of the first signal line 121 in the first direction. The size of the third main body 1132 in the second direction is 7-9 times the size of the first signal line 121 in the first direction. At this time, in a pair of third sub-pixels 116, the size of the two third main bodies 1132 in the first direction is at least 12-16 times the size of the first signal line 121 in the first direction, so as to overlap with the adjacent two signal line groups 120.

[0175] For example, in some examples, the orthographic projection of the first effective light-emitting region 1115 on the substrate 101 falls within the orthographic projection of the first anode 1112 on the substrate 101, and the range of the shortest distance between the edge of the orthographic projection of the first effective light-emitting region 1115 on the substrate 101 and the edge of the orthographic projection of the first anode 1112 on the substrate 101 is between 1 and 3 micrometers. The orthographic projection of the second effective light-emitting region 1125 on the substrate 101 falls within the orthographic projection of the second anode 1122 on the substrate 101, and the range of the shortest distance between the edge of the orthographic projection of the second effective light-emitting region 1125 on the substrate 101 and the edge of the orthographic projection of the second anode 1122 on the substrate 101 is between 1 and 3 micrometers. The orthographic projection of the third effective light-emitting region 1135 on the substrate 101 falls within the orthographic projection of the third anode 1132 on the substrate 101, and the range of the shortest distance between the edge of the orthographic projection of the third effective light-emitting region 1135 on the substrate 101 and the edge of the orthographic projection of the third anode 1132 on the substrate 101 is between 1 and 3 micrometers.

[0176] At least one embodiment of the present disclosure further provides a display substrate, as Figure 6 shown, including: a substrate 101; a plurality of sub-pixel groups 110; and a plurality of signal line groups 120 arranged at intervals in a first direction. Each signal line group 120 includes a first signal line 121 and a second signal line 122. Both the first signal line 121 and the second signal line 122 extend in a second direction intersecting the first direction. In each signal line group 120, the first signal line 121 and the second signal line 122 are arranged in sequence, and the arrangement order of the first signal line 121 and the second signal line 122 in two adjacent signal line groups 120 is the same. Each sub-pixel group 120 includes a first sub-pixel 111, and the first sub-pixel 111 includes a first anode 1110, and the first anode 1110 overlaps with two adjacent signal line groups 120.

[0177] For example, in some examples, as Figure 6 shown, two adjacent signal line groups 120 include a first signal line group 1201 and a second signal line group 1202 arranged in the first direction. In the first signal line group 1201, the first signal line 121 is located on the side of the second signal line 122 away from the second signal line group 1202, and in the second signal line group 1202, the first signal line 121 is located on the side of the second signal line 122 close to the first signal line group 1201. The following points need to be explained:

[0178] (1) In the drawings of the embodiments of the present disclosure, only the structures related to the embodiments of the present disclosure are involved, and other structures can refer to the general design.

[0179] (2) Without conflict, the features in the same embodiment and different embodiments of the present disclosure can be combined with each other.

[0180] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. A display substrate, comprising: Substrate Multiple sub-pixel groups And Multiple signal line groups, arranged at intervals in the first direction, each of the signal line groups includes at least one signal line, and the signal line extends in a second direction intersecting the first direction. Wherein, each of the sub-pixel groups includes a first sub-pixel, the first sub-pixel includes a first anode and a first effective light-emitting region, the first anode includes a first main body portion and a first connection electrode connected to the first main body portion, the first main body portion at least partially overlaps with the first effective light-emitting region, the size of the first main body portion in the first direction is greater than the size of the first main body portion in the second direction, the first anode overlaps with two adjacent signal line groups, and the first connection electrode is connected to a pixel driving circuit corresponding to the first sub-pixel.

2. The display substrate according to claim 1, wherein The positive projection of a first virtual straight line extending in the first direction on the substrate passes through the positive projection of the first connection electrode on the substrate and is spaced from the positive projection of the first main body portion on the substrate.

3. The display substrate according to claim 1, wherein Each of the sub-pixels further includes a second sub-pixel and a third sub-pixel, the second sub-pixel includes a second anode and a second effective light-emitting region, the second anode includes a second main body portion and a second connection electrode connected to the second main body portion, the second main body portion at least partially overlaps with the second effective light-emitting region, the second connection electrode is connected to a pixel driving circuit corresponding to the second sub-pixel, the third sub-pixel includes a third anode and a third effective light-emitting region, the third anode includes a third main body portion and a third connection electrode connected to the third main body portion, the third main body portion at least partially overlaps with the third effective light-emitting region, and the third connection electrode is connected to a pixel driving circuit corresponding to the third sub-pixel. On the display substrate, the positive projection of a second virtual straight line extending in the first direction on the substrate passes through the positive projection of the first connection electrode of a first sub-pixel on the substrate, the positive projection of the second connection electrode of a second sub-pixel on the substrate, and the positive projection of the third connection electrode of a third sub-pixel on the substrate.

4. The display substrate according to claim 3, wherein The third connection electrode is an extension portion extending outward from the third main body portion.

5. The display substrate according to any one of claims 1-4, wherein The shape of the positive projection of the first main body portion on the substrate is generally elongated, and the extending direction of the first main body portion intersects the second direction.

6. The display substrate according to claim 5, wherein The extending direction of the first main body portion is substantially perpendicular to the second direction.

7. The display substrate according to any one of claims 1-4, wherein The first anode includes a first protruding portion and a second protruding portion, and both the first protruding portion and the second protruding portion protrude away from the substrate. The two signal line groups overlapping with the first anode include a first signal line group and a second signal line group. The positive projection of the first protruding portion on the substrate at least partially overlaps with the positive projection of the first signal line group on the substrate, and the positive projection of the second protruding portion on the substrate at least partially overlaps with the positive projection of the second signal line group on the substrate.

8. The display substrate according to claim 7, wherein The positive projection of the first protruding portion on the substrate substrate overlaps at least partially with the positive projections of all the signal lines in the first signal line group on the substrate substrate, and the positive projection of the second protruding portion on the substrate substrate overlaps at least partially with the positive projections of all the signal lines in the second signal line group on the substrate substrate.

9. The display substrate according to claim 7, wherein The first anode further includes a flat connecting portion located between the first protruding portion and the second protruding portion, and the distance between the flat connecting portion and the substrate substrate is less than the distance between the first protruding portion and the substrate substrate and the distance between the second protruding portion and the substrate substrate.

10. The display substrate according to any one of claims 1-4, wherein Each of the at least one signal line included in the signal line group includes a first signal line and a second signal line. In each signal line group, the first signal line and the second signal line are arranged in sequence, and the arrangement order of the first signal line and the second signal line in two adjacent signal line groups is the same. The two signal line groups overlapping with the first anode include a first signal line group and a second signal line group arranged along the first direction. In the first signal line group, the first signal line is located on the side of the second signal line away from the second signal line group, and in the second signal line group, the first signal line is located on the side of the second signal line close to the first signal line group.

11. The display substrate according to claim 10, wherein The distance between the first signal line and the second signal line in one signal line group is less than the distance between two adjacent signal line groups.

12. The display substrate according to claim 10, wherein The second signal line has different widths at two different positions in the second direction.

13. The display substrate according to claim 10, wherein The first signal line is a data line configured to transmit data signals. The first main body portion of the first anode overlaps with two adjacent signal line groups, and the first connecting electrode does not overlap with the data line overlapping with the first main body portion.

14. The display substrate according to claim 10, wherein The second signal line is a power line configured to transmit a driving voltage. The first main body portion of the first anode overlaps with two adjacent signal line groups, and the first connecting electrode does not overlap with the power line overlapping with the first main body portion.

15. The display substrate according to any one of claims 1-4, wherein The first main body portion of the first anode overlaps with two adjacent signal line groups, and the first connecting electrode does not overlap with the two signal line groups overlapping with the first main body portion.

16. The display substrate according to any one of claims 1-4, wherein The ratio of the dimension of the first main body portion in the first direction to the dimension of the first main body portion in the second direction is γ1, and the value range of γ1 is 1.2 - 3.

17. The display substrate according to any one of claims 1-4, wherein The positive projections of the signal lines in the two signal line groups overlapping with the first anode on the substrate substrate extend in the second direction and pass through the positive projection of the first anode on the substrate substrate.

18. The display substrate according to any one of claims 1-4, wherein Each signal line group includes two signal lines, and the first anode overlaps with four signal lines in two adjacent signal line groups.

19. The display substrate according to any one of claims 1-4, wherein The dimension range of the first main body portion in the first direction is 45 - 60 microns, and the dimension range of the first main body portion in the second direction is 15 - 30 microns.

20. A display device, comprising the display substrate according to any one of claims 1-19.

Images