Display substrate and display device

Abstract

Provided are a display substrate and a display device. The display substrate comprises an active area, wherein the active area comprises a plurality of sub-pixels. The display substrate comprises a base substrate, a first electrode layer, and a pixel definition layer which are stacked in sequence, wherein the first electrode layer comprises a plurality of first electrodes arranged spaced apart from each other. Each sub-pixel comprises a first electrode. The pixel definition layer defines a plurality of pixel openings. The display substrate further comprises a plurality of shielding portions, wherein the plurality of shielding portions are located on the side of the pixel definition layer away from the base substrate. The plurality of sub-pixels comprise a plurality of first sub-pixels, and each of the first electrodes of at least some of the first sub-pixels comprises a first sub-electrode and a second sub-electrode which are located in the pixel openings and arranged opposite each other. In a third direction, a surface of the second sub-electrode that is away from the base substrate is farther away from the base substrate than a surface of the first sub-electrode that is away from the base substrate. The plurality of shielding portions comprise a plurality of first shielding sub-portions, and at least some of the first shielding sub-portions are located on the side of the first sub-electrode away from the second sub-electrode.

Description

Display substrate and display device Technical Field

[0001] This disclosure relates to the field of display technology, and more particularly to a display substrate and a display device. Background Technology

[0002] Organic light-emitting diode (OLED) display panels have advantages such as high brightness, wide color gamut, low power consumption, and long lifespan, and are widely used in daily life. To meet the market demand for narrow bezels and high image quality, the wiring density in the display panel is increased, or the circuit below the anode of the light-emitting unit has an asymmetrical design. This can easily lead to a deterioration in the flatness of the anode of the light-emitting unit, resulting in color shift.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0004] In one aspect, a display substrate is provided, comprising a display area including a plurality of sub-pixels;

[0005] The display substrate includes:

[0006] Substrate;

[0007] A first electrode layer is located on one side of the substrate. The first electrode layer includes a plurality of spaced-apart first electrodes, and each sub-pixel includes a first electrode.

[0008] A pixel definition layer, located on the side of the first electrode layer away from the substrate, includes a pixel defining portion that defines pixel openings for a plurality of sub-pixels; and

[0009] Multiple blocking portions are located on the side of the pixel definition layer away from the substrate.

[0010] The plurality of sub-pixels includes a plurality of first sub-pixels, and at least a portion of the first sub-pixels have first and second sub-electrodes located at the pixel opening and disposed opposite to each other.

[0011] In the third direction, the second sub-electrode is further away from the surface of the substrate than the surface of the first sub-electrode, and the third direction is perpendicular to the light-emitting surface of the display substrate; and

[0012] The plurality of occlusion portions include a plurality of first sub-occlusion portions, at least a portion of which is located on the side of the first sub-electrode of the first sub-pixel away from the second sub-electrode.

[0013] According to some exemplary embodiments, the plurality of sub-pixels further includes a plurality of second sub-pixels, and at least some of the first electrodes of the second sub-pixels include third and fourth sub-electrodes located at the pixel opening and disposed opposite to each other.

[0014] Wherein, in the third direction, the fourth sub-electrode is further away from the surface of the substrate than the surface of the third sub-electrode that is further away from the substrate; and

[0015] The occlusion portion further includes a plurality of second sub-occlusion portions, at least a portion of which is located on the side of the third sub-electrode of the second sub-pixel away from the fourth sub-electrode.

[0016] According to some exemplary embodiments, the orthographic projection of the occluding portion on the substrate falls within the orthographic projection of the pixel definition layer on the substrate; and

[0017] The orthographic projection of the shading portion on the substrate and the orthographic projection of the pixel opening on the substrate are spaced apart.

[0018] According to some exemplary embodiments, the orthographic projection of the first electrode on the substrate at least partially overlaps with the orthographic projection of the pixel defining portion on the substrate;

[0019] The first electrode of the first sub-pixel includes a fifth sub-electrode that projects onto the pixel defining portion, the orthographic projection of the fifth sub-electrode onto the substrate at least partially overlapping the orthographic projection of the first sub-shading portion onto the substrate; and / or,

[0020] The first electrode of the second sub-pixel includes a sixth sub-electrode that overlaps with the projection of the pixel defining portion, and the orthographic projection of the sixth sub-electrode on the substrate at least partially overlaps with the orthographic projection of the second sub-shading portion on the substrate.

[0021] According to some exemplary embodiments, the color of the light emitted by the first sub-pixel is the same as the color of the light emitted by the second sub-pixel; and / or,

[0022] The orthographic projection of the first electrode of the first sub-pixel onto the substrate includes adjacent first and second side edges. The first side edge extends along a first direction, and the second side edge extends along a second direction. The width of the second side edge is greater than the width of the first side edge. The first and second directions are parallel to the light-emitting surface of the display substrate, and the first and second directions intersect; and / or,

[0023] The orthographic projection of the first electrode of the second sub-pixel onto the substrate includes an adjacent third side and a fourth side. The third side extends along a first direction, and the fourth side extends along a second direction. The width of the third side is greater than the width of the fourth side. The first direction and the second direction are parallel to the light-emitting surface of the display substrate, and the first direction and the second direction intersect.

[0024] According to some exemplary embodiments, the shape of the orthographic projection of the shielding portion on the substrate includes an L-shape.

[0025] According to some exemplary embodiments, the first sub-blocking portion includes a first portion extending along the first direction; the first portion of the first sub-blocking portion has a first width in the first direction, the first side has a second width, and the ratio of the first width to the second width is in the range of 0.8-1.2.

[0026] According to some exemplary embodiments, the pixel defining portion includes a first surface remote from the substrate, the first surface including a fifth side edge near the pixel opening.

[0027] In the second direction, the first portion of the first sub-blocking portion is spaced apart from the fifth side by a first interval distance; the first portion of the first sub-blocking portion has a third width in the second direction, the third width being greater than the first interval distance.

[0028] According to some exemplary embodiments, in the second direction, the first portion of the first sub-blocking portion is spaced apart from the pixel opening of the first sub-pixel by a second spacing distance.

[0029] The first sub-occlusion portion further includes a second portion extending along the second direction, wherein the second portion is spaced from the pixel opening of the first sub-pixel by a third spacing distance in the first direction, and the ratio of the third spacing distance to the second spacing distance is in the range of 0.8-1.2.

[0030] According to some exemplary embodiments, the second portion of the first sub-blocking portion has a fourth width in the second direction, and the ratio of the fourth width to the first width is in the range of 0.8-1.2.

[0031] According to some exemplary embodiments, the third side of the second sub-pixel has a fifth width, the second sub-occlusion portion includes a third portion extending along the first direction, the third portion having a sixth width in the first direction, and the fifth width being greater than the sixth width.

[0032] According to some exemplary embodiments, the fourth side of the second sub-pixel has a seventh width, the second sub-occlusion includes a fourth portion extending along the second direction, the fourth portion having an eighth width in the second direction, and the ratio of the seventh width to the eighth width being in the range of 0.8-1.2.

[0033] According to some exemplary embodiments, the plurality of sub-pixels further includes a plurality of third sub-pixels, wherein the area of ​​the pixel opening of the third sub-pixel projected onto the substrate is larger than the area of ​​the pixel opening of the first sub-pixel projected onto the substrate, and at least a second portion of the first sub-blocking portion is located between the pixel openings of adjacent first sub-pixels and the pixel openings of the third sub-pixels; and / or,

[0034] The plurality of sub-pixels further includes a plurality of fourth sub-pixels, wherein the area of ​​the pixel opening of the fourth sub-pixel projected onto the substrate is smaller than the area of ​​the pixel opening of the third sub-pixel projected onto the substrate, and at least a portion of the first portion of the first sub-blocking portion is located between the pixel opening of the adjacent first sub-pixel and the pixel opening of the fourth sub-pixel; and / or,

[0035] At least a portion of the third part of the second sub-occlusion is located between the pixel opening of the adjacent second sub-pixel and the pixel opening of the fourth sub-pixel; and / or,

[0036] At least a portion of the fourth part of the second sub-occlusion is located between the pixel opening of the adjacent second sub-pixel and the pixel opening of the third sub-pixel.

[0037] According to some exemplary embodiments, the first interval distance is in the range of 1 micrometer to 2 micrometers.

[0038] According to some exemplary embodiments, the shielding portion has a first thickness in the third direction, the first thickness being in the range of 2.1 micrometers to 2.7 micrometers.

[0039] According to some exemplary embodiments, the display substrate further includes a plurality of isolation pillars located between adjacent pixel openings, wherein the orthographic projection of the blocking portion on the substrate is spaced apart from the orthographic projection of the isolation pillar on the substrate, and the blocking portion is located between adjacent isolation pillars and pixel openings.

[0040] According to some exemplary embodiments, the plurality of shielding portions and the plurality of isolation columns are located on the same layer.

[0041] According to some exemplary embodiments, the display substrate further includes a first conductive layer located between the first electrode layer and the substrate, the first conductive layer including a plurality of first conductive portions, wherein the orthographic projection of the first conductive portion on the substrate at least partially overlaps with the orthographic projection of the first electrode of the first sub-pixel on the substrate; and / or, the orthographic projection of the first conductive portion on the substrate at least partially overlaps with the orthographic projection of the first electrode of the second sub-pixel on the substrate.

[0042] In another aspect, a display device is provided, wherein the display device includes a display substrate as described in any of the preceding claims. Attached Figure Description

[0043] The foregoing contents, as well as other objects, features, and advantages of this disclosure, will become clearer from the following description of embodiments with reference to the accompanying drawings, in which:

[0044] Figure 1 is a plan view of a display substrate according to an embodiment of the present disclosure;

[0045] Figure 2 is a partially enlarged schematic diagram of region S1 in Figure 1;

[0046] Figure 3 is a schematic diagram of the cross section taken along line AA' in Figure 2;

[0047] Figures 4A-4C are partial planar schematic diagrams of some film layers of a display substrate according to embodiments of the present disclosure;

[0048] Figure 5 is a partially enlarged schematic diagram of a display substrate according to an embodiment of the present disclosure;

[0049] Figure 6 is a partially enlarged schematic diagram of region S2 in Figure 5;

[0050] Figure 7 is a magnified view of a portion of region S3 in Figure 5;

[0051] Figure 8 is a schematic diagram of the cross section taken along line BB' in Figure 5;

[0052] Figure 9 is a partially enlarged schematic diagram of a display substrate according to an embodiment of the present disclosure;

[0053] Figure 10 is a schematic diagram of a cross-section taken along line CC' in Figure 9; and

[0054] Figure 11 is a structural block diagram of a display device according to an embodiment of the present disclosure.

[0055] It should be noted that, for clarity, the dimensions of layers, structures, or regions in the accompanying drawings used to describe embodiments of the present invention may be enlarged or reduced; that is, these drawings are not drawn to actual scale. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0057] It should be noted that, for clarity and / or descriptive purposes, the dimensions and relative dimensions of components may be enlarged in the accompanying drawings. Therefore, the dimensions and relative dimensions of the individual components are not necessarily limited to those shown in the drawings. In the specification and accompanying drawings, the same or similar reference numerals indicate the same or similar parts.

[0058] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as “comprising” or “including” mean that an element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects.

[0059] In this document, unless otherwise specified, directional terms such as "up," "down," "left," "right," "inner," and "outer" are used to indicate orientation or positional relationships based on the accompanying drawings, and are used only for the convenience of describing this disclosure, and are not intended to indicate or imply that the device, element, or component referred to must have a specific orientation, or be constructed or operated in a specific orientation. It should be understood that when the absolute position of the described object changes, the relative positional relationships they represent may also change accordingly. Therefore, these directional terms should not be construed as limitations on this disclosure.

[0060] In this document, the terms “approximately,” “about,” “approximately,” and other similar terms are used as terms of approximation rather than as terms of degree, and they are intended to account for inherent deviations in measured or calculated values ​​that would be recognized by one of ordinary skill in the art. Taking into account factors such as process variations, measurement problems, and errors associated with the measurement of a particular quantity (i.e., limitations of the measurement system), “about” or “approximately” as used herein includes stated values ​​and indicates that a particular value is within an acceptable range of deviation for one of ordinary skill in the art. For example, “about” may mean within one or more standard deviations, or within ±10% or ±5% of the stated value.

[0061] In this document, the directional terms "first direction," "second direction," and "third direction" are used to describe different orientations of the display substrate, such as the row and column directions of subpixels. It should be understood that such representations are merely exemplary descriptions and not limitations of this disclosure.

[0062] In this document, unless otherwise stated, the term "electrical connection" can mean that two components or elements are directly electrically connected, for example, component or element A is in direct contact with component or element B, and an electrical signal can be transmitted between them; it can also mean that two components or elements are electrically connected through a conductive medium, such as a conductive wire, for example, component or element A is electrically connected to component or element B through a conductive wire to transmit an electrical signal between the two components or elements; it can also mean that two components or elements are electrically connected through at least one electronic component, for example, component or element A is electrically connected to component or element B through at least one thin-film transistor to transmit an electrical signal between the two components or elements.

[0063] In this article, "parallel" or "nearly parallel" refers to the state where the angle formed by two straight lines is greater than -10° and less than 10°, and therefore also includes the state where the angle is greater than -5° and less than 5°. In addition, "perpendicular" refers to the state where the angle formed by two straight lines is greater than 80° and less than 100°, and therefore also includes the state where the angle is greater than 85° and less than 95°.

[0064] To facilitate understanding by relevant personnel, some technical terms in this disclosure are explained briefly.

[0065] Objective values ​​of color deviation: Colored light has three objective attributes, including: dominant wavelength, purity, and luminance. The dominant wavelength is the wavelength of light that dominates the visible color light, and it determines the color (hue) of the light; purity is a measure of spectral purity, that is, the amount of white light mixed in with pure colored light; and luminance refers to the brightness of the light.

[0066] Some OLED display panels use stacked OLED technology, which connects multiple light-emitting layers in series through a charge generation layer, offering advantages such as high brightness, wide color gamut, low power consumption, and long lifespan. To meet market demands for narrow bezels and high image quality, some display panels feature densely packed traces on the backplane circuitry and / or asymmetrical designs below the light-emitting layers. This can easily lead to poor anode flatness in the light-emitting units, resulting in color shift issues in the display product.

[0067] In some display panels, color asymmetry is primarily manifested in the difference between the two sides of the green sub-pixel. For example, the red and blue sub-pixels have a metal trace layer designed under their anodes, resulting in relatively good symmetry. However, the green sub-pixel has multiple overlapping metal pads under its anode, exhibiting an asymmetrical design. This can cause the anode layer of the green sub-pixel to tilt to one side, increasing the difference in slope angle between the two sides. Consequently, this leads to different degrees of brightness attenuation on both sides, resulting in an asymmetrical color shift trajectory, a larger difference in the objective color shift value, and a visual difference in image quality between the two sides of the product.

[0068] This disclosure provides a display substrate. Specifically, the display substrate includes a display area, which includes a plurality of sub-pixels. The display substrate includes: a substrate; a first electrode layer located on one side of the substrate, the first electrode layer including a plurality of spaced-apart first electrodes, each sub-pixel including a first electrode; a pixel defining layer located on the side of the first electrode layer away from the substrate, the pixel defining layer including a pixel defining portion defining a pixel opening of a plurality of sub-pixels; and a plurality of blocking portions located on the side of the pixel defining layer away from the substrate. The plurality of sub-pixels includes a plurality of first sub-pixels, and at least some of the first sub-pixels' first electrodes include first and second sub-electrodes located at the pixel openings and disposed opposite to each other. In a third direction, the second sub-electrodes are further away from the substrate from the surface of the substrate than the surface of the first sub-electrodes away from the substrate, and are perpendicular to the light-emitting surface of the display substrate in the third direction; and the plurality of blocking portions include a plurality of first sub-blocking portions, at least a portion of which are located on the side of the first sub-electrodes of the first sub-pixels away from the second sub-electrodes.

[0069] This design allows the shielding portion to block some of the light leaking out from one side of the sub-pixel due to the tilt of the electrode, which helps to reduce the light emission difference between the two sides of the sub-pixel, thereby improving color shift and enhancing the display effect of the display substrate.

[0070] Figure 1 is a plan view of a display substrate according to an embodiment of the present disclosure.

[0071] Exemplary, in an embodiment of this disclosure, a display substrate 100 is provided. Referring to FIG1, the display substrate 100 may include a substrate 1, the substrate 1 including a display area AA and a peripheral area NA surrounding the display area AA.

[0072] The display area AA can have various shapes. For example, the display area AA can be set in various shapes such as a polygon (e.g., a rectangle) with a closed shape including straight sides, a circle or ellipse with curved sides, and a semicircle or semi-ellipse with both straight and curved sides. In embodiments of this disclosure, the display area AA is set as a region having a quadrilateral shape including straight sides. It should be understood that this is only an exemplary embodiment of this disclosure and not a limitation thereof. A peripheral area NA can be set on at least one side of the display area AA. In embodiments of this disclosure, the peripheral area NA can surround the outer periphery of the display area AA.

[0073] For example, the display substrate 100 may also include a plurality of pixel units PX. The plurality of pixel units are located in the display area AA. The pixel unit PX is the smallest unit for displaying an image, and there may be multiple units. For example, the pixel unit PX may include a light-emitting device that emits white light and / or colored light.

[0074] Multiple pixel units PX can be configured to be arranged in a matrix along rows extending in a first arrangement direction X and columns extending in a second arrangement direction Y. The first arrangement direction X and the second arrangement direction Y are parallel to the light-emitting surface of the display substrate, and the first arrangement direction X and the second arrangement direction Y intersect. However, the embodiments of this disclosure do not specifically limit the arrangement of the pixel units PX, and the pixel units PX can be arranged in various forms. For example, the pixel units PX can be arranged such that the direction inclined relative to the first arrangement direction X and the second arrangement direction Y is the column direction, and the direction intersecting the column direction is the row direction.

[0075] Figure 2 is a partially enlarged schematic diagram of region S1 in Figure 1, and Figure 3 is a schematic diagram of a cross section taken along line AA' in Figure 2.

[0076] For example, at least one pixel unit PX may include multiple sub-pixels. The multiple sub-pixels may include multiple light-emitting devices, such as red OLED devices, green OLED devices, blue OLED devices, and / or white OLED devices.

[0077] In some embodiments, at least one pixel unit PX may include a first sub-pixel sp1, a third sub-pixel sp3, and a fourth sub-pixel sp4. For example, the first sub-pixel sp1 is a green sub-pixel, the third sub-pixel sp3 is a blue sub-pixel, and the fourth sub-pixel sp4 is a red sub-pixel.

[0078] In some embodiments, at least one pixel unit PX may include a first sub-pixel sp1, a second sub-pixel sp2, a third sub-pixel sp3, and a fourth sub-pixel sp4. For example, the first sub-pixel sp1 is a green sub-pixel, the second sub-pixel sp2 is a green sub-pixel, the third sub-pixel sp3 is a blue sub-pixel, and the fourth sub-pixel sp4 is a red sub-pixel.

[0079] For example, referring to Figures 2 and 3, the display substrate 100 may include: a substrate 1; a first electrode layer 5, the first electrode layer 5 being located on one side of the substrate 1, the first electrode layer 5 including a plurality of spaced first electrodes 51. Each sub-pixel includes a first electrode 51, for example, a first sub-pixel sp1 includes a first electrode 511 of the first sub-pixel sp1, and a second sub-pixel sp2 includes a first electrode 512 of the second sub-pixel sp2.

[0080] For example, the first electrode 51 can be the anode of a light-emitting device. For instance, the first electrode 51 can include a transparent conductive material, such as ITO.

[0081] For example, the display substrate 100 may further include a pixel definition layer PDL. The pixel definition layer PDL is located on the side of the first electrode layer 5 away from the substrate 1. The pixel definition layer PDL includes a pixel defining portion PDL1, which can define pixel openings VH1 of a plurality of sub-pixels. For example, referring to FIG2, the first sub-pixel sp1 includes a first pixel opening VH11, the second sub-pixel sp2 includes a second pixel opening VH12, the third sub-pixel sp3 includes a third pixel opening VH13, and the fourth sub-pixel sp4 includes a fourth pixel opening VH14. The pixel opening VH1 may be an opening region including a light-emitting area.

[0082] It should be noted that the embodiments of this disclosure do not impose any particular restrictions on the design of the pixel opening VH1. For example, although the accompanying drawings schematically show that the pixel opening VH1 is rectangular, in other embodiments, the pixel opening can also be a square, ellipse, circle, triangle or other shapes. In addition, the light-emitting units of different colors corresponding to different pixel openings can adopt various arrangements known in the art. The embodiments of this disclosure do not impose any particular restrictions.

[0083] Exemplarily, the display substrate 100 may further include: a light-emitting functional layer 7 located on the side of the pixel definition layer (PDL) away from the substrate 1; and a second electrode layer 8 located on the side of the light-emitting functional layer 7 away from the substrate 1. For example, the light-emitting functional layer 7 may include multiple film layers such as an electron injection layer, an electron transport layer, a first light-emitting layer, a hole transport layer, a charge generation layer, and a second light-emitting layer. The second electrode layer 8 may include a second electrode, which may be the cathode of a light-emitting device. Exemplarily, the material of the second electrode may include materials such as aluminum, silver, or a magnesium-silver alloy.

[0084] Figures 4A-4C are partial planar schematic diagrams of some film layers of a display substrate according to embodiments of the present disclosure.

[0085] For example, referring to FIG3, the display substrate 100 may further include a first conductive layer 3 located between the first electrode layer 5 and the substrate 1. The first conductive layer 3 may include a plurality of first conductive portions 31.

[0086] For example, referring to FIG4A, the orthographic projection of the first conductive portion 31 on the substrate overlaps at least partially with the orthographic projection of the first electrode 511 of the first sub-pixel sp1 on the substrate.

[0087] For example, referring to FIG4B, the orthographic projection of the first conductive portion 31 on the substrate overlaps at least partially with the orthographic projection of the first electrode 512 of the second sub-pixel sp2 on the substrate.

[0088] This design allows for full utilization of the space in the direction perpendicular to the light-emitting surface of the display substrate, thereby increasing the wiring density of the display substrate and facilitating the narrowing of the display substrate's bezel.

[0089] In some embodiments, the arrangement direction of the first conductive portion 31 and the arrangement direction of the first electrode 51 may be different.

[0090] For example, referring to Figures 4A and 4B, the side of the first conductive portion 31 may extend along a first arrangement direction X, and / or, the side of the first conductive portion 31 may extend along a second arrangement direction Y. The side of the first electrode 51 may extend along a first direction D1, and / or, the side of the first electrode 51 may extend along a second direction D2. The first direction D1 and the second direction D2 may be parallel to the light-emitting surface of the display substrate, and the first direction D1 and the second direction D2 intersect.

[0091] For example, the first direction D1 may intersect with the first layout direction X, and the second direction D2 may intersect with the second layout direction Y.

[0092] This design allows for more flexible design of the shape, size, and position of some metal pads and the first electrode of the sub-pixel in the driving circuit. It can improve the design flexibility of the display substrate, help increase the wiring density of the display substrate, and achieve narrow bezels on the display substrate.

[0093] However, since the orthographic projection of a portion of the first conductive portion 31 on the substrate is asymmetrical with respect to the orthographic projection of the first electrode 51 on the substrate, the flatness of the first electrode 51 may deteriorate. For example, referring to FIG3, the surface of the first electrode 51 of some sub-pixels is not parallel to the light-emitting surface of the display substrate. For example, the surface of the first electrode 51 of some sub-pixels is tilted toward one side of the pixel opening, which may cause color shift problems and affect the display effect.

[0094] In some embodiments, the surface of the first electrode 51 of a portion of the sub-pixels away from the substrate is not flat, causing the slope angles of some sidewalls of the pixel definition layer (PDL) in contact with the first electrode 51 to be different on opposite sides of the pixel opening. Here, the "slope angle" of the sidewalls of the pixel definition layer refers to the angle between the sidewalls of the pixel definition layer and the horizontal direction.

[0095] For example, in the process of forming the pixel opening, the pixel definition layer typically forms a side region with a gradually decreasing thickness (or height), which includes a sidewall near the pixel opening VH1. For example, referring to Figures 3 and 4C, the pixel definition layer PDL may also include a plurality of second openings VH2. The orthographic projection of the pixel opening VH1 onto the substrate may fall within the orthographic projection of the second opening VH2 onto the substrate. The pixel definition layer PDL may include a sidewall PDL10 located outside the pixel opening VH1 and located at the second opening VH2. For example, the pixel definition layer PDL may include: a first sidewall PDL101 near the first side of the first electrode 51 (e.g., the left side in Figure 3); and a second sidewall PDL102 near the second side of the first electrode 51 (e.g., the right side in Figure 3).

[0096] In some embodiments, the slope angle θ1 of the first sidewall PDL101 is smaller than the slope angle θ2 of the second sidewall PDL102.

[0097] For example, the display substrate may further include a barrier layer 2 located between the substrate 1 and the first conductive layer 3. For instance, the barrier layer 2 can prevent moisture from corroding the light-emitting device, which helps to improve the lifespan of the display substrate.

[0098] For example, the display substrate may further include a planarization layer 4 located between the first conductive layer 3 and the first electrode layer 5.

[0099] In some embodiments, a portion of the planarization layer 4 (e.g., the pixel aperture VH1 region) has a metal pad (e.g., the first conductive portion 31) at its bottom, causing the surface of the planarization layer 4 away from the substrate to be uneven in that region. This may result in unevenness on the surface of the first electrode of some sub-pixels in the pixel aperture region. In some embodiments, the metal pad in the pixel aperture region may be located in one or more conductive film layers.

[0100] Because the first electrodes 51 of some sub-pixels are uneven or asymmetrical on opposite sides, the light intensity emitted by one side (e.g., the left side in Figure 3) of the sub-pixel may be greater than the light intensity emitted by the opposite side (e.g., the right side in Figure 3), resulting in color shift problems in different directions of the display substrate.

[0101] To improve the color shift problem of display substrates, some embodiments of this disclosure provide a display substrate that may include a blocking portion disposed near the strong light side of some sub-pixels. The blocking portion can block some of the light leaking from the strong light side, thereby reducing the light emission difference between the two sides of the sub-pixels and improving the color shift problem of the display substrate.

[0102] Figure 5 is a partially enlarged schematic diagram of a display substrate according to an embodiment of the present disclosure, Figure 6 is a partially enlarged schematic diagram of region S2 in Figure 5, Figure 7 is a partially enlarged schematic diagram of region S3 in Figure 5, and Figure 8 is a cross-sectional schematic diagram taken along line BB' in Figure 5.

[0103] For example, in an embodiment of this disclosure, referring to FIG5 and FIG8, the display substrate may include: a substrate 1; a first electrode layer 5 located on one side of the substrate 1; a pixel definition layer PDL located on the side of the first electrode layer 5 away from the substrate 1; and a plurality of blocking portions PS located on the side of the pixel definition layer PDL away from the substrate 1.

[0104] By way of example, referring to Figures 5, 6, and 8, a plurality of sub-pixels may include a plurality of first sub-pixels sp1. At least a portion of the first sub-pixels sp1 have a first electrode 5111 located at the pixel opening VH1 and disposed opposite to a second sub-electrode 5112. On a third direction D3, the second sub-electrode 5112 is further away from the surface of the substrate 1 than the surface of the first sub-electrode 5111, where the third direction D3 is perpendicular to the light-emitting surface of the display substrate. A plurality of blocking portions PS include a plurality of first sub-blocking portions PS1, at least a portion of which is located on the side of the first sub-electrode 5111 of the first sub-pixel sp1 away from the second sub-electrode 5112.

[0105] With this design, the first sub-blocking part can block some of the light leaking out from the side near the first sub-electrode, thereby reducing the light emission difference on both sides of the first sub-pixel and improving the color shift problem of the display substrate.

[0106] For example, the first sub-pixel sp1 can be a green sub-pixel. In some display substrates, a metal pad is provided in the driving circuit layer below the green sub-pixel, which may cause the surface of the first electrode of the green sub-pixel to be uneven. By providing a shielding portion on one side of the green sub-pixel (e.g., the side with higher light intensity), the color shift problem of the display substrate can be improved, which is beneficial to improving the display effect of the display substrate.

[0107] Exemplary, in some embodiments of this disclosure, referring to Figures 5, 7, and 8, the plurality of sub-pixels further include a plurality of second sub-pixels sp2. At least a portion of the first electrode 512 of the second sub-pixels sp2 includes a third sub-electrode 5123 and a fourth sub-electrode 5124 located at the pixel opening VH1 and disposed opposite to each other. On the third direction D3, the fourth sub-electrode 5124 is further away from the surface of the substrate 1 than the surface of the third sub-electrode 5123 that is also away from the substrate 1. The blocking portion PS further includes a plurality of second sub-blocking portions PS2. At least a portion of the second sub-blocking portions PS2 is located on the side of the second sub-pixel sp2 where the third sub-electrode 5123 is away from the fourth sub-electrode 5124.

[0108] With this design, the second sub-blocking part can block some of the light leaking out from the side near the third sub-electrode, thereby reducing the light emission difference on both sides of the second sub-pixel and improving the color shift problem of the display substrate.

[0109] For example, the color of the light emitted by the second sub-pixel sp2 can be the same as the color of the light emitted by the first sub-pixel sp1. For instance, both the second sub-pixel sp2 and the first sub-pixel sp1 can be green sub-pixels.

[0110] For example, the pixel openings of the first sub-pixel sp1 and the second sub-pixel sp2 may have different orientations. For instance, referring to Figures 6 and 7, the first side (e.g., the short side) vh111 of the first pixel opening VH11 of the first sub-pixel sp1 extends along the first direction D1, and the second side (e.g., the long side) vh112 extends along the second direction D2. The third side (e.g., the long side) vh123 of the second pixel opening VH12 of the second sub-pixel sp2 extends along the first direction D1, and the fourth side (e.g., the short side) vh124 extends along the second direction D2.

[0111] For example, referring to FIG5, the orthographic projection of the occluding portion PS on the substrate falls into the orthographic projection of the pixel definition layer PDL1 on the substrate.

[0112] For example, the orthographic projection of the blocking portion PS on the substrate and the orthographic projection of the pixel opening VH1 on the substrate are spaced apart.

[0113] In some embodiments, the orthographic projection of the first electrode 51 on the substrate at least partially overlaps with the orthographic projection of the pixel defining portion PDL1 on the substrate. For example, referring to FIGS. 5 and 6, the first electrode 511 of the first sub-pixel sp1 includes a fifth sub-electrode 5115 that overlaps with the projection of the pixel defining portion PDL1. The orthographic projection of the fifth sub-electrode 5115 on the substrate at least partially overlaps with the orthographic projection of the first sub-shading portion PS1 on the substrate.

[0114] For example, the fifth sub-electrode 5115 further includes a first conductive transition portion 501. The first conductive transition portion 501 can be electrically connected to the drive circuit layer.

[0115] For example, the first conductive transition portion 501 may be located on the side of the first sub-shielding portion PS1 away from the second sub-electrode 5112.

[0116] In some embodiments, referring to Figures 5 and 7, the first electrode 512 of the second sub-pixel sp2 may include a sixth sub-electrode 5126 that overlaps with the projection of the pixel defining portion PDL1. The orthographic projection of the sixth sub-electrode 5126 on the substrate at least partially overlaps with the orthographic projection of the second sub-shading portion PS2 on the substrate.

[0117] For example, the sixth sub-electrode 5126 further includes a second conductive transition portion 502. The second conductive transition portion 502 can be electrically connected to the drive circuit layer.

[0118] For example, the second conductive transition portion 502 may be located on the side of the second sub-shielding portion PS2 away from the fourth sub-electrode 5124.

[0119] By setting multiple blocking parts on the strong light side of multiple sub-pixels respectively, the positions of the multiple blocking parts can be arranged accordingly according to the different arrangements of the first electrodes of the multiple sub-pixels, so that the light on the strong light side of the multiple sub-pixels can be blocked respectively, which is beneficial to improving the color shift problem of the display substrate.

[0120] In some embodiments, in order to evenly block light within a certain angle range on the strong light side, the shape of the blocking part can be optimized.

[0121] For example, the shape of the orthogonal projection of the blocking portion PS on the substrate includes an L-shape. In some embodiments, the shape of the orthogonal projection of the blocking portion PS on the substrate may also include an approximate L-shape, such as a V-shape, a C-shape, etc.

[0122] This design allows for balanced blocking of light within a certain angle range on the strong light side of some sub-pixels, resulting in more consistent light intensity at various angles. This helps to improve color shift and enhance the display effect of the display substrate.

[0123] For example, referring to FIG6, the orthographic projection of the first electrode 511 of the first sub-pixel sp1 onto the substrate includes an adjacent first side L1 and a second side L2. The first side L1 extends along a first direction D1, and the second side L2 extends along a second direction D2. The width of the second side L2 is greater than the width of the first side L1. The first direction D1 and the second direction D2 are parallel to the light-emitting surface of the display substrate, and the first direction D1 and the second direction D2 intersect.

[0124] For example, the first sub-blocking portion PS1 includes a first portion PS11. The first portion PS11 extends along a first direction D1. The first portion PS11 of the first sub-blocking portion has a first width d1 in the first direction D1, and the first side L1 has a second width d2.

[0125] For example, the first width d1 and the second width d2 are substantially equal. For instance, the ratio of the first width d1 to the second width d2 is in the range of 0.8-1.2.

[0126] This design allows for more comprehensive blocking of light from the first side L1, preventing noticeable brightness differences in the vicinity of the first side.

[0127] For example, the first sub-blocking portion PS1 further includes a second portion PS12. The second portion PS12 extends along the second direction D2. The second portion PS12 has a fourth width d4 in the second direction D2.

[0128] For example, the widths of the first part PS11 and the second part PS12 can be substantially the same. For instance, the ratio of the fourth width d4 to the first width d1 is in the range of 0.8-1.2.

[0129] This design balances the blocking effect of the occluder on light within a certain angle range, which helps improve the uniformity of light intensity emitted by sub-pixels at various angles, thereby improving color shift.

[0130] For example, continuing to refer to FIG6, in the second direction D2, the first portion PS11 of the first sub-occlusion portion is separated from the pixel opening VH11 of the first sub-pixel by a second spacing distance m2. In the first direction D1, the second portion PS12 is separated from the pixel opening VH11 of the first sub-pixel by a third spacing distance m3. For example, the ratio of the third spacing distance m3 to the second spacing distance m2 is in the range of 0.8-1.2.

[0131] With this design, the blocking effect of the occluding part on the light in the vicinity of the first and second sides is more consistent, which helps to further improve the uniformity of the light intensity emitted by the sub-pixels at various angles, thereby improving color shift.

[0132] In some embodiments, referring to Figures 6 and 8, the pixel defining portion PDL1 includes a first surface PDL11 away from the substrate. The first surface PDL11 includes a fifth side L5 near the pixel opening VH1. For example, the fifth side L5 is the side where the first surface PDL11 intersects with the second opening VH2.

[0133] For example, in the second direction D2, the first portion PS11 of the first sub-blocking portion is separated from the fifth side L5 by a first interval distance m1. The first portion PS11 of the first sub-blocking portion has a third width d3 in the second direction D2. For example, the third width d3 is greater than the first interval distance m1. For example, the third width d3 is approximately 1.7 micrometers, and the first interval distance m1 is approximately 1.5 micrometers.

[0134] For example, the first spacing distance m1 is in the range of 1 micrometer to 2 micrometers.

[0135] For example, referring to FIG8, the occlusion portion PS has a first thickness h1 in the third direction D3. The first thickness h1 is in the range of 2.1 micrometers to 2.7 micrometers. For example, the first thickness h1 is about 2.4 micrometers.

[0136] By adjusting parameters such as the size (width and height) of the occluding part and the distance between the occluding part and the pixel opening, the occlusion effect of the occluding part on the light emitted by the sub-pixel can be adjusted. For example, increasing the height of the occluding part improves its ability to block light from the sub-pixel, allowing for greater light blocking. This design allows for better adjustment of the light intensity at various angles, thereby improving color shift.

[0137] For example, referring to FIG7, the orthographic projection of the first electrode 512 of the second sub-pixel sp2 onto the substrate includes an adjacent third side L3 and a fourth side L4. The third side L3 extends along a first direction D1, and the fourth side L4 extends along a second direction D2. The width of the third side L3 is greater than the width of the fourth side L4. The first direction D1 and the second direction D2 are parallel to the light-emitting surface of the display substrate, and the first direction D1 and the second direction D2 intersect.

[0138] For example, the third side L3 of the second sub-pixel has a fifth width d5. The second sub-occlusion portion PS2 includes a third portion PS23, which extends along a first direction D1 and has a sixth width d6 in the first direction D1. For example, the fifth width d5 ​​is greater than the sixth width d6.

[0139] For example, the fourth side L4 of the second sub-pixel has a seventh width d7. The second sub-occlusion portion PS2 includes a fourth portion PS24 extending along the second direction D2, and the fourth portion PS24 has an eighth width d8 in the second direction D2. For example, the ratio of the seventh width d7 to the eighth width d8 is in the range of 0.8-1.2.

[0140] This design balances the blocking effect of the occluder on light within a certain angle range, which helps improve the uniformity of light intensity emitted by sub-pixels at various angles, thereby improving color shift.

[0141] For example, continuing to refer to Figures 5 and 6, the multiple sub-pixels may further include multiple third sub-pixels sp3. The area of ​​the pixel opening VH13 of the third sub-pixel sp3 projected onto the substrate is larger than the area of ​​the pixel opening VH11 of the first sub-pixel sp1 projected onto the substrate. For example, the third sub-pixel sp3 is a blue sub-pixel.

[0142] For example, at least a portion of the first sub-occlusion portion PS1, the second portion PS12, is located between the pixel opening VH11 of the adjacent first sub-pixel and the pixel opening VH13 of the third sub-pixel sp3.

[0143] For example, the multiple sub-pixels may further include multiple fourth sub-pixels sp4. The area of ​​the pixel opening VH14 of the fourth sub-pixel sp4 projected onto the substrate is smaller than the area of ​​the pixel opening VH13 of the third sub-pixel sp3 projected onto the substrate. For example, the fourth sub-pixel sp4 may be a red sub-pixel.

[0144] For example, at least a portion of the first sub-occlusion PS1, the first portion PS11, is located between the pixel opening VH11 of the adjacent first sub-pixel sp1 and the pixel opening VH14 of the fourth sub-pixel sp4.

[0145] In some embodiments, at least a portion of the second portion PS12 of the first sub-occlusion portion PS1 may be located between the pixel opening VH11 of the adjacent first sub-pixel sp1 and the pixel opening VH14 of the fourth sub-pixel sp4. At least a portion of the first sub-occlusion portion PS1 of the first sub-occlusion portion PS1 may be located between the pixel opening VH11 of the adjacent first sub-pixel sp1 and the pixel opening VH13 of the third sub-pixel sp3.

[0146] For example, continuing to refer to Figures 5 and 7, at least a portion of the third portion PS23 of the second sub-occlusion PS2 is located between the pixel opening VH12 of the adjacent second sub-pixel sp2 and the pixel opening VH13 of the third sub-pixel sp3.

[0147] For example, at least a portion of the fourth portion PS24 of the second sub-occlusion PS2 is located between the pixel opening VH12 of the adjacent second sub-pixel sp2 and the pixel opening VH14 of the fourth sub-pixel sp4.

[0148] In some embodiments, at least a portion of the third portion PS23 of the second sub-blocking portion PS2 may be located between the pixel opening VH12 of the adjacent second sub-pixel sp2 and the pixel opening VH14 of the fourth sub-pixel sp4.

[0149] For example, at least a portion of the fourth part PS24 of the second sub-blocking part PS2 may be located between the pixel opening VH12 of the adjacent second sub-pixel sp2 and the pixel opening VH13 of the third sub-pixel sp3.

[0150] For example, at least a portion of the first sub-occlusion portion PS1 is spaced from the pixel opening of the adjacent first sub-pixel sp1 less than the distance between the first sub-occlusion portion PS1 and the pixel opening of the adjacent third sub-pixel sp3 or the pixel opening of the adjacent fourth sub-pixel sp4.

[0151] For example, at least a portion of the second sub-occlusion portion PS2 is spaced from the pixel opening of the adjacent second sub-pixel sp2 less than the spaced from the pixel opening of the adjacent third sub-pixel sp3 or the pixel opening of the adjacent fourth sub-pixel sp4.

[0152] This design ensures that the occlusion part has a light-blocking effect on the first and / or second sub-pixels, while minimizing the impact of the occlusion part on the third and fourth sub-pixels. This helps to improve color shift while ensuring the overall light output brightness of the pixel unit.

[0153] Figure 9 is a partially enlarged schematic diagram of a display substrate according to an embodiment of the present disclosure, and Figure 10 is a cross-sectional schematic diagram taken along line CC' in Figure 9.

[0154] Exemplary examples, in some embodiments of this disclosure, referring to Figures 9 and 10, show that the display substrate further includes a plurality of isolation pillars PT. The isolation pillars PT are located between adjacent pixel openings VH1. For example, the isolation pillars PT can serve a supporting and protective function during the processing of the display substrate, such as supporting a mask and preventing the mask from damaging parts of the film layers in the display substrate during movement.

[0155] For example, the orthographic projection of the blocking portion PS on the substrate and the orthographic projection of the isolation pillar PT on the substrate are spaced apart, and the blocking portion PS is located between the adjacent isolation pillar PT and the pixel opening VH1.

[0156] For example, the interval distance m4 between at least the partially occluded portion PS and the adjacent isolation pillar PT is greater than the interval distance between the occluded portion PS and the adjacent pixel opening VH1. For example, m4 is greater than the second interval distance m2 between the first sub-occluded portion PS1 and the pixel opening of the first sub-pixel.

[0157] This design reduces the impact of the isolation pillars on the light emission of the pixel units, which helps to improve the overall brightness of the display substrate.

[0158] In some embodiments, multiple shielding parts PS and multiple isolation pillars PT may be located on the same layer.

[0159] It should be noted that the term "same layer" refers to a layer structure formed by using the same film deposition process to create a film layer for a specific pattern, and then using the same photomask to pattern this film layer in a single patterning process. Depending on the specific pattern, a single patterning process may include multiple exposure, development, or etching processes, and the specific pattern in the resulting layer structure may be continuous or discontinuous. These specific patterns may also be at different heights or have different thicknesses.

[0160] This design reduces the brightness difference between the two sides of some sub-pixels on the display substrate without increasing the number of photomasks, which helps improve color shift, simplifies the process, and reduces costs.

[0161] Figure 11 is a structural block diagram of a display device according to an embodiment of the present disclosure.

[0162] Optionally, embodiments of this disclosure also provide a display device. Referring to FIG11, the display device 200 may include the aforementioned display substrate 100. The display device may include, but is not limited to, any product or component with display function such as electronic paper, mobile phone, tablet computer, monitor, laptop computer, digital photo frame, and navigator. It should be understood that this display device has the same beneficial effects as the display substrate provided in the foregoing embodiments.

[0163] While some embodiments of the general concept of this disclosure have been shown and described, those skilled in the art will understand that changes may be made to these embodiments without departing from the principles and spirit of the general concept of this disclosure, the scope of which is defined by the claims and their equivalents.

Claims

1. A display substrate, characterized in that, Includes a display area, which includes multiple sub-pixels; The display substrate includes: Substrate; A first electrode layer is located on one side of the substrate. The first electrode layer includes a plurality of spaced-apart first electrodes, and each sub-pixel includes a first electrode. A pixel definition layer, located on the side of the first electrode layer away from the substrate, includes a pixel defining portion that defines pixel openings for a plurality of sub-pixels; and Multiple blocking portions are located on the side of the pixel definition layer away from the substrate. The plurality of sub-pixels includes a plurality of first sub-pixels, and at least a portion of the first sub-pixels have first and second sub-electrodes located at the pixel opening and disposed opposite to each other. In the third direction, the second sub-electrode is further away from the surface of the substrate than the surface of the first sub-electrode, and the third direction is perpendicular to the light-emitting surface of the display substrate; and The plurality of occlusion portions include a plurality of first sub-occlusion portions, at least a portion of which is located on the side of the first sub-electrode of the first sub-pixel away from the second sub-electrode.

2. The display substrate according to claim 1, wherein, The plurality of sub-pixels also include a plurality of second sub-pixels, and at least some of the first electrodes of the second sub-pixels include a third sub-electrode and a fourth sub-electrode located at the pixel opening and disposed opposite to each other; In the third direction, the fourth sub-electrode is further away from the surface of the substrate than the surface of the third sub-electrode is away from the substrate. as well as The occlusion portion further includes a plurality of second sub-occlusion portions, at least a portion of which is located on the side of the third sub-electrode of the second sub-pixel away from the fourth sub-electrode.

3. The display substrate according to claim 1 or 2, wherein, The orthographic projection of the occluding portion on the substrate falls into the orthographic projection of the pixel definition layer on the substrate; as well as The orthographic projection of the shading portion on the substrate and the orthographic projection of the pixel opening on the substrate are spaced apart.

4. The display substrate according to claim 2, wherein, The orthographic projection of the first electrode on the substrate at least partially overlaps with the orthographic projection of the pixel defining portion on the substrate. as well as The first electrode of the first sub-pixel includes a fifth sub-electrode that overlaps with the projection of the pixel defining portion, and the orthographic projection of the fifth sub-electrode on the substrate at least partially overlaps with the orthographic projection of the first sub-blocking portion on the substrate. And / or, the first electrode of the second sub-pixel includes a sixth sub-electrode that projects onto the pixel defining portion, the orthographic projection of the sixth sub-electrode onto the substrate at least partially overlapping the orthographic projection of the second sub-shading portion onto the substrate.

5. The display substrate according to claim 2 or 4, wherein, The color of the light emitted by the first sub-pixel is the same as the color of the light emitted by the second sub-pixel; and / or, The orthographic projection of the first electrode of the first sub-pixel on the substrate includes an adjacent first side and a second side. The first side extends along a first direction, and the second side extends along a second direction. The width of the second side is greater than the width of the first side. The first direction and the second direction are parallel to the light-emitting surface of the display substrate, and the first direction and the second direction intersect. And / or, The orthographic projection of the first electrode of the second sub-pixel onto the substrate includes an adjacent third side and a fourth side. The third side extends along a first direction, and the fourth side extends along a second direction. The width of the third side is greater than the width of the fourth side. The first direction and the second direction are parallel to the light-emitting surface of the display substrate, and the first direction and the second direction intersect.

6. The display substrate according to any one of claims 1-5, wherein, The shape of the orthographic projection of the shielding portion onto the substrate includes an L-shape.

7. The display substrate according to claim 5, wherein, The first sub-blocking portion includes a first part that extends along the first direction; the first part of the first sub-blocking portion has a first width in the first direction, and the first side has a second width, the ratio of the first width to the second width being in the range of 0.8-1.

2.

8. The display substrate according to claim 7, wherein, The pixel defining portion includes a first surface remote from the substrate, and the first surface includes a fifth side edge near the pixel opening. In the second direction, the first portion of the first sub-blocking portion is spaced apart from the fifth side by a first interval distance; the first portion of the first sub-blocking portion has a third width in the second direction, the third width being greater than the first interval distance.

9. The display substrate according to claim 7 or 8, wherein, In the second direction, the first portion of the first sub-blocking portion is separated from the pixel opening of the first sub-pixel by a second spacing distance; The first sub-occlusion portion further includes a second portion extending along the second direction, wherein the second portion is spaced from the pixel opening of the first sub-pixel by a third spacing distance in the first direction, and the ratio of the third spacing distance to the second spacing distance is in the range of 0.8-1.

2.

10. The display substrate according to claim 9, wherein, The second portion of the first sub-blocking portion has a fourth width in the second direction, and the ratio of the fourth width to the first width is in the range of 0.8-1.

2.

11. The display substrate according to any one of claims 5 and 7-11, wherein, The third side of the second sub-pixel has a fifth width, the second sub-occlusion portion includes a third part, the third part extends along the first direction, the third part has a sixth width in the first direction, and the fifth width is greater than the sixth width.

12. The display substrate according to claim 11, wherein, The fourth side of the second sub-pixel has a seventh width, the second sub-occlusion includes a fourth portion that extends along the second direction and has an eighth width in the second direction, and the ratio of the seventh width to the eighth width is in the range of 0.8-1.

2.

13. The display substrate according to claim 12, wherein, The plurality of sub-pixels also include a plurality of third sub-pixels, wherein the area of ​​the pixel opening of the third sub-pixel projected onto the substrate is larger than the area of ​​the pixel opening of the first sub-pixel projected onto the substrate, and at least a portion of the second portion of the first sub-blocking portion is located between the pixel opening of the adjacent first sub-pixel and the pixel opening of the third sub-pixel. And / or, The plurality of sub-pixels also include a plurality of fourth sub-pixels, wherein the area of ​​the pixel opening of the fourth sub-pixel projected onto the substrate is smaller than the area of ​​the pixel opening of the third sub-pixel projected onto the substrate, and at least a portion of the first portion of the first sub-blocking portion is located between the pixel opening of the adjacent first sub-pixel and the pixel opening of the fourth sub-pixel. And / or, At least a portion of the third part of the second sub-occlusion is located between the pixel opening of the adjacent second sub-pixel and the pixel opening of the fourth sub-pixel; and / or, At least a portion of the fourth part of the second sub-occlusion is located between the pixel opening of the adjacent second sub-pixel and the pixel opening of the third sub-pixel.

14. The display substrate according to claim 8, wherein, The first interval is in the range of 1 micrometer to 2 micrometers.

15. The display substrate according to any one of claims 1-14, wherein, The shielding portion has a first thickness in the third direction, the first thickness being in the range of 2.1 micrometers to 2.7 micrometers.

16. The display substrate according to any one of claims 1-15, wherein, The display substrate further includes a plurality of isolation pillars, which are located between adjacent pixel openings. The orthographic projection of the blocking portion on the substrate is spaced apart from the orthographic projection of the isolation pillar on the substrate. The blocking portion is located between adjacent isolation pillars and pixel openings.

17. The display substrate according to claim 16, wherein, The plurality of shielding parts and the plurality of isolation columns are located on the same layer.

18. The display substrate according to claim 2, wherein, The display substrate further includes a first conductive layer located between the first electrode layer and the substrate. The first conductive layer includes a plurality of first conductive portions. The orthographic projection of the first conductive portion on the substrate at least partially overlaps with the orthographic projection of the first electrode of the first sub-pixel on the substrate. And / or, the orthographic projection of the first conductive portion on the substrate at least partially overlaps with the orthographic projection of the first electrode of the second sub-pixel on the substrate.

19. A display device, characterized in that, Includes the display substrate as described in any one of claims 1-18.

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