CN217134376U - Display substrate and display device - Google Patents

Abstract

Provided are a display substrate and a display device. The display substrate includes a first display region, wherein the display substrate includes: the pixel structure comprises a substrate base plate, a plurality of first pixel structures and a plurality of second pixel structures, wherein the substrate base plate is provided with a first display area and a second display area, the first pixel structures are arranged on the substrate base plate in an array mode along the first direction and the second direction and are positioned in the first display area, and at least one first pixel structure comprises at least two first sub-pixels and at least two second sub-pixels. The first sub-pixel includes a first opening, and the second sub-pixel includes a second opening. In one first pixel structure, orthographic projection graphs of first openings of two first sub-pixels on the substrate respectively have a first center and a third center, orthographic projection graphs of second openings of two second sub-pixels on the substrate respectively have a second center and a fourth center, the first center, the second center, the third center and the fourth center are sequentially connected to form a first quadrangle, and the side lengths of at least two sides in the first quadrangle are not equal to each other.

Description

Display substrate and display device

Cross Reference to Related Applications

This application claims the benefit of chinese patent application No. 202110971715.1 filed on chinese patent office at 8/23/2021 and chinese patent application No. 202121992782.3 filed on chinese patent office at 8/23/2021, the entire disclosure of which is incorporated herein by reference.

Technical Field

The present disclosure relates to the field of display technologies, and in particular, to a display substrate and a display device.

Background

With the increasing demand of users for diversified use of display devices and the emergence of design requirements for high screen occupation ratio of display devices, a scheme of 'camera under screen' is emerging at present. In the scheme of the camera under the screen, an imaging module such as a camera is embedded in a display area to reduce the size of a frame area of the display device, so that the screen occupation ratio is improved. At present, in the scheme of the "camera under screen", on the basis of improving the screen duty ratio of the display device, how to ensure the light transmittance and the display effect at the position of the display substrate where the imaging module is correspondingly arranged becomes an important subject of attention of research and development personnel.

The above information disclosed in this section is only for understanding of the background of the technical idea of the present disclosure, and therefore, the above information may contain information that does not constitute prior art.

SUMMERY OF THE UTILITY MODEL

In one aspect, there is provided a display substrate including a first display region, wherein the display substrate includes:

a substrate base plate;

a first pixel structure located in the first display region, the first pixel structure including two first sub-pixels and two second sub-pixels; and

a pixel defining layer disposed on the substrate base plate, the pixel defining layer including a first opening and a second opening in the first display region,

wherein the first sub-pixel includes a first opening and the second sub-pixel includes a second opening;

in the first pixel structure, orthographic projection graphs of first openings of two first sub-pixels on the substrate respectively have a first center and a third center, orthographic projection graphs of second openings of two second sub-pixels on the substrate respectively have a second center and a fourth center, the first center, the second center, the third center and the fourth center are sequentially connected to form a first quadrangle, the side lengths of at least two sides in the first quadrangle are not equal to each other, and the ratio of the side lengths of at least two sides ranges from 0.8 to 1.2.

According to some exemplary embodiments, the first pixel structure further comprises third sub-pixels, at least one third sub-pixel being located inside the first quadrangle.

According to some exemplary embodiments, the first pixel structure further includes a plurality of third sub-pixels, the third sub-pixels being arranged in an array along the first direction and the second direction;

the pixel defining layer further comprises a plurality of third openings in the first display region, the third sub-pixels comprising third openings;

the third opening of at least one third sub-pixel is positioned inside the first quadrangle, the projection of the third opening of the third sub-pixel along the first direction is not overlapped with the projection of each of the first opening of the first sub-pixel and the second opening of the second sub-pixel along the first direction, and the projection of the third opening of the third sub-pixel along the second direction is not overlapped with the projection of each of the first opening of the first sub-pixel and the second opening of the second sub-pixel along the second direction.

According to some exemplary embodiments, in the first pixel structure, the first sub-pixel and the second sub-pixel are adjacent in both a first direction and a second direction, and a distance in the first direction between a center of the first opening of the first sub-pixel and a center of the second opening of the second sub-pixel adjacent in the first direction is not equal to a distance in the second direction between a center of the first opening of the first sub-pixel and a center of the second opening of the second sub-pixel adjacent in the second direction.

According to some exemplary embodiments, within the first pixel structure, the first sub-pixel and the second sub-pixel are adjacent in both a first direction and a second direction, and a shortest distance in the first direction between a boundary of the first opening of the first sub-pixel and a boundary of the second opening of the second sub-pixel adjacent in the first direction is not equal to a shortest distance in the second direction between a boundary of the first opening of the first sub-pixel and a boundary of the second opening of the second sub-pixel adjacent in the second direction.

According to some exemplary embodiments, a contour of an orthographic projection pattern of at least one of the first opening of the first sub-pixel and the second opening of the second sub-pixel on the substrate base includes a circular arc, and the orthographic projection pattern of at least one of the first opening of the first sub-pixel and the second opening of the second sub-pixel on the substrate base is axisymmetric in one of the first direction and the second direction and non-axisymmetric in the other of the first direction and the second direction.

According to some exemplary embodiments, an outline of a pattern of an orthographic projection of at least one of the first opening of the first sub-pixel and the second opening of the second sub-pixel on the substrate includes a circular arc portion and a non-circular arc portion, the circular arc portions having a same center, and a total length of the non-circular arc portions being smaller than a total length of the circular arc portions.

According to some exemplary embodiments, the first opening of the at least one first sub-pixel includes a main portion and an auxiliary portion, an orthographic projection of the main portion of the first opening on the substrate base plate is substantially circular, and an orthographic projection of the auxiliary portion of the first opening on the substrate base plate protrudes in the first direction or the second direction with respect to the circular shape.

According to some exemplary embodiments, an orthographic pattern of a main body portion of the first opening on the substrate base plate has a first circle center; and

for a first opening having a first center, the first center of the first opening is offset from a first center of the body portion of the first opening by a first offset distance in either the first direction or the second direction.

According to some exemplary embodiments, for a first opening having a third center, the third center of the first opening is offset in the first direction or the second direction by a second offset distance with respect to a first center of a body portion of the first opening.

According to some exemplary embodiments, a ratio of the first offset distance to the second offset distance ranges from 0.8 to 1.2.

According to some exemplary embodiments, at least one of the first offset distance and the second offset distance is 1-5 microns.

According to some exemplary embodiments, a line connecting a first center of the first opening and the second center is substantially parallel to the first direction, the line connecting the first center and the second center is at a first angle with respect to the first direction, and the first angle is greater than or equal to 0 ° and less than or equal to 30 °; and/or the presence of a gas in the gas,

for a first opening with a third center, a connecting line of a first circle center of the first opening and the fourth center is basically parallel to the first direction, a connecting line of the third center and the fourth center forms a second angle relative to the first direction, and the second angle is greater than or equal to 0 degrees and smaller than or equal to 30 degrees.

According to some exemplary embodiments, at least one of the first pixel structures further includes at least four third sub-pixels, the pixel defining layer includes a plurality of third openings in the first display region, and the third sub-pixels include third openings; and

an orthographic projection of at least one of the third openings on the substrate base plate falls within the first quadrangle and has a fifth center, and a spacing distance between the fifth center and the second center in the second direction is not equal to a spacing distance between the fifth center and the third center in the second direction.

According to some exemplary embodiments, the third opening of the at least one third sub-pixel includes a main portion and an auxiliary portion, an orthographic projection of the main portion of the third opening on the substrate base plate is circular, and an orthographic projection of the auxiliary portion of the third opening on the substrate base plate protrudes in the second direction with respect to the circular shape of the main portion of the third opening.

According to some exemplary embodiments, in one of the first pixel structures, an orthographic projection pattern of the third openings of the four third sub-pixels on the substrate respectively has a fifth center, a sixth center, a seventh center and an eighth center, the fifth center, the sixth center, the seventh center and the eighth center are sequentially connected to form a second quadrangle, and a ratio of any two of four sides of the second quadrangle is in a range of 0.8-1.2.

According to some exemplary embodiments, the display substrate further includes:

an anode structure disposed on a side of the pixel defining layer adjacent to the substrate base plate;

a pixel drive circuit disposed between the substrate base plate and the anode structure; and

an anode connection hole through which the anode structure is connected with the pixel driving circuit,

wherein, the orthographic projection of the auxiliary part of the first opening on the substrate base plate is protruded towards the orthographic projection of the anode connecting hole of the first sub-pixel where the first opening is located on the substrate base plate relative to the circle of the main part of the first opening; and/or the orthographic projection of the auxiliary part of the third opening on the substrate base plate is protruded towards the orthographic projection of the anode connecting hole of the third sub-pixel where the third opening is located on the substrate base plate relative to the circle of the main part of the third opening.

According to some exemplary embodiments, the auxiliary portion of the first opening has a first corner portion at a side close to the anode connection hole of the first sub-pixel; and/or the auxiliary portion of the third opening has a third corner portion at a side close to the anode connection hole of the third sub-pixel.

According to some exemplary embodiments, an orthographic projection of the main body portion of the first opening on the substrate base plate comprises a first circular arc, an orthographic projection of the first corner portion on the substrate base plate comprises a first edge and a second edge, the first edge and the second edge are respectively connected with the first circular arc and tangent with the first circular arc at a connection point, and an angle formed between the first edge and the second edge is between 10 ° and 170 °; and/or the presence of a gas in the gas,

an orthographic projection of a main body part of the third opening on the substrate base plate comprises a third circular arc, an orthographic projection of the third corner part on the substrate base plate comprises a first edge and a second edge, the first edge of the third corner part and the second edge of the third corner part are respectively connected with the third circular arc and tangent to the third circular arc at a connection point, and an angle formed between the first edge of the third corner part and the second edge of the third corner part is 10-170 degrees.

According to some exemplary embodiments, the first opening has a first contour having a first boundary portion, a distance between the first boundary portion and a first center of the main body portion of the first opening is greater than a distance between other portions of the first contour and the first center of the main body portion of the first opening, and a distance between the first boundary portion and a center of the anode connection hole of the first sub-pixel where the first opening is located is smaller than a distance between other portions of the first contour and the center of the anode connection hole of the first sub-pixel where the first opening is located; and/or the presence of a gas in the gas,

the third opening has a third contour, the third contour has a third boundary portion, a distance between the third boundary portion and a third center of the main body portion of the third opening is greater than a distance between other portions of the third contour and the third center of the main body portion of the third opening, and a distance between the third boundary portion and a center of the anode connection hole of the third sub-pixel where the third opening is located is less than a distance between other portions of the third contour and a center of the anode connection hole of the third sub-pixel where the third opening is located.

According to some exemplary embodiments, the display substrate includes a plurality of first pixel structures disposed on the substrate in an array along a first direction and a second direction to form sub-pixel rows and sub-pixel columns; a connecting line of centers of the first openings of the plurality of first sub-pixels and the second openings of the plurality of second sub-pixels in the same sub-pixel row is a broken line, the broken line comprises a plurality of line segments, at least one line segment forms a third angle relative to the first direction, and the third angle is larger than 0 degree and smaller than or equal to 30 degrees; and/or a connection line of centers of the first openings of the plurality of first sub-pixels and the second openings of the plurality of second sub-pixels in the same sub-pixel column is a broken line, the broken line comprises a plurality of line segments, at least one line segment forms a fourth angle relative to the second direction, and the fourth angle is greater than 0 degree and smaller than or equal to 30 degrees.

According to some exemplary embodiments, in one of the first pixel structures, at least two first corner portions are oriented differently; and/or at least two third corners are oriented differently.

According to some exemplary embodiments, the auxiliary portion of the first opening has a rounded portion at a side close to the anode connection hole of the first sub-pixel; and/or the auxiliary portion of the third opening has a rounded portion at a side close to the anode connection hole of the third sub-pixel.

According to some exemplary embodiments, a line connecting the first center and the fourth center is substantially parallel to the second direction; and/or a line connecting the second center and the third center is substantially parallel to the second direction.

According to some exemplary embodiments, in one of the first pixel structures, an orthographic projection pattern of the third openings of the four third sub-pixels on the substrate respectively has a fifth center, a sixth center, a seventh center and an eighth center, the fifth center, the sixth center, the seventh center and the eighth center are sequentially connected to form a second quadrangle, the side lengths of at least two sides in the second quadrangle are not equal to each other, and the ratio of the side lengths of at least two sides in the second quadrangle ranges from 0.8 to 1.2.

According to some exemplary embodiments, the first quadrangle and/or the second quadrangle is selected from at least one of a parallelogram or an isosceles trapezoid.

According to some exemplary embodiments, an orthographic pattern of the at least one first opening on the substrate base plate has a first axis of symmetry, the first axis of symmetry being substantially parallel to the second direction.

According to some exemplary embodiments, an orthographic pattern of the at least one third opening on the substrate base plate has a third axis of symmetry, the third axis of symmetry of the at least one third opening being offset with respect to the second direction by a prescribed offset angle.

According to some exemplary embodiments, for two third openings adjacent in the first direction within one of the first pixel structures, a deflection direction of the third axis of symmetry of one third opening with respect to the second direction is opposite to a deflection direction of the third axis of symmetry of another third opening with respect to the second direction; and/or the presence of a gas in the gas,

for two third openings adjacent to each other in the second direction in one of the first pixel structures, the deflection direction of the third symmetry axis of one third opening with respect to the second direction is opposite to the deflection direction of the third symmetry axis of the other third opening with respect to the second direction.

According to some exemplary embodiments, for two third openings adjacent to each other along the first direction in one of the first pixel structures, a deflection angle of the third symmetry axis of one third opening with respect to the second direction is substantially equal to a deflection angle of the third symmetry axis of the other third opening with respect to the second direction; and/or the presence of a gas in the gas,

for two third openings adjacent to each other along the second direction in one of the first pixel structures, the deflection angle of the third symmetry axis of one third opening relative to the second direction is substantially equal to the deflection angle of the third symmetry axis of the other third opening relative to the second direction.

According to some exemplary embodiments, the first opening of the at least one first sub-pixel includes a main portion and an auxiliary portion, an orthographic projection of the main portion of the first opening on the substrate base plate is a major circle, and an orthographic projection of the auxiliary portion of the first opening on the substrate base plate protrudes in the second direction with respect to the major circle.

According to some exemplary embodiments, the third opening of the at least one third sub-pixel includes a main portion and an auxiliary portion, an orthogonal projection of the main portion of the third opening on the substrate base plate is a major circle, and an orthogonal projection of the auxiliary portion of the third opening on the substrate base plate protrudes in the second direction with respect to the major circle.

According to some exemplary embodiments, an orthographic projection of the second opening of the at least one second sub-pixel on the substrate base plate is a perfect circle.

According to some exemplary embodiments, the contour of the orthographic projection of the second opening of at least one second sub-pixel on the substrate includes a second major arc and a second chord, and the second chord and the anode connection hole of the second sub-pixel where the second opening is located are respectively located on opposite sides of the second major arc.

According to some exemplary embodiments, an outline of an orthographic projection of the second opening of the at least one second sub-pixel on the substrate includes a second major arc and a second chord, and the second chord and an anode connection hole of the second sub-pixel where the second opening is located are located on the same side of the second major arc.

According to some exemplary embodiments, an orthogonal projection of the second opening of the second sub-pixel on the substrate base plate and an orthogonal projection of the anode connection hole of the second sub-pixel on the substrate base plate are both located within an orthogonal projection of the anode structure of the second sub-pixel on the substrate base plate; and the orthographic projection of the anode structure of the second sub-pixel on the substrate is basically circular.

According to some exemplary embodiments, a contour of an orthographic projection pattern of the first opening of the first sub-pixel on the substrate includes an arc portion and a non-arc portion, first distances at respective positions along a radial direction thereof from the arc portion of the first opening to a boundary of the anode structure of the first sub-pixel are substantially equal, and a second distance along the radial direction thereof from the non-arc portion of the first opening to the boundary of the anode structure of the first sub-pixel is not equal to the first distance; and/or the presence of a gas in the gas,

the outline of the orthographic projection graph of the second opening of the second sub-pixel on the substrate comprises an arc part and a non-arc part, third distances from the arc part of the second opening to the boundary of the anode structure of the second sub-pixel at various positions along the radial direction of the second opening are approximately equal, and a fourth distance from the non-arc part of the second opening to the boundary of the anode structure of the second sub-pixel along the radial direction of the second opening is not equal to the third distance; and/or the presence of a gas in the gas,

the outline of the orthographic projection pattern of the third opening of the third sub-pixel on the substrate comprises an arc part and a non-arc part, fifth distances from the arc part of the third opening to the boundary of the anode structure of the third sub-pixel at various positions along the radial direction of the third opening are approximately equal, and a sixth distance from the non-arc part of the third opening to the boundary of the anode structure of the third sub-pixel along the radial direction of the third opening is not equal to the fifth distance.

According to some exemplary embodiments, the second distance is greater than the first distance; and/or the fourth distance is greater than the third distance; and/or the sixth distance is greater than the fifth distance.

According to some exemplary embodiments, the display substrate further includes: a light emitting layer disposed on a side of the anode structure away from the substrate base plate,

the orthographic projections of the first opening of the first sub-pixel, the second opening of the second sub-pixel and the third opening of the third sub-pixel on the substrate respectively fall into the orthographic projection of the respective light-emitting layer of each sub-pixel on the substrate,

the outline of the orthographic projection graph of the first opening of the first sub-pixel on the substrate comprises an arc part and a non-arc part, seventh distances from the arc part of the first opening to the boundary of the light emitting layer of the first sub-pixel at various positions along the radial direction of the first opening are approximately equal, and an eighth distance from the non-arc part of the first opening to the boundary of the light emitting layer of the first sub-pixel along the radial direction of the first opening is not equal to the seventh distance; and/or the outline of the orthographic projection graph of the second opening of the second sub-pixel on the substrate comprises an arc part and a non-arc part, ninth distances from the arc part of the second opening to the boundary of the light-emitting layer of the second sub-pixel at various positions along the radial direction of the boundary are approximately equal, and a tenth distance from the non-arc part of the second opening to the boundary of the light-emitting layer of the second sub-pixel along the radial direction of the boundary is not equal to the ninth distance; and/or the outline of the orthographic projection pattern of the third opening of the third sub-pixel on the substrate comprises an arc part and a non-arc part, eleventh distances from the arc part of the third opening to the boundary of the light-emitting layer of the third sub-pixel at various positions along the radial direction of the boundary are approximately equal, and a twelfth distance from the non-arc part of the third opening to the boundary of the light-emitting layer of the third sub-pixel along the radial direction of the boundary is not equal to the eleventh distance.

According to some exemplary embodiments, the contour of the orthographic projection of the second opening of the at least one second sub-pixel on the substrate includes a second major arc and a second contour edge, the second contour edge includes a plurality of sub-edges or curves, and the plurality of sub-edges or curves at least partially surround the orthographic projection of the anode connection hole of the second sub-pixel on the substrate.

According to some exemplary embodiments, an orthographic projection pattern of the second opening on the substrate base plate is circular.

According to some exemplary embodiments, the radius of curvature of the rounded portion is in a range of 1 to 10 micrometers.

According to some exemplary embodiments, the prescribed deflection angle is in the range of 1 ° to 30 °.

According to some exemplary embodiments, an orthographic projection of the second opening of at least one second sub-pixel on the substrate base plate is in a shape of a water drop; and/or the presence of a gas in the gas,

the orthographic projection of the third opening of at least one third sub-pixel on the substrate is in a water drop shape.

According to some exemplary embodiments, each of the second opening of the second sub-pixel and the third opening of the third sub-pixel has a circular shape in an orthographic projection on the substrate base plate;

the display substrate further includes: an anode structure disposed on a side of the pixel defining layer adjacent to the substrate base plate; a pixel drive circuit disposed between the substrate base plate and the anode structure; the anode structure is connected with the pixel driving circuit through the anode connecting hole;

the first opening of the first sub-pixel comprises a main body part and an auxiliary part, the orthographic projection of the main body part of the first opening on the substrate is circular, and the orthographic projection of the auxiliary part of the first opening on the substrate is protruded towards the orthographic projection of the anode connecting hole of the first sub-pixel where the first opening is located on the substrate relative to the circular shape of the main body part of the first opening;

an orthographic projection pattern of the first opening of the first sub-pixel on the substrate base plate has a first symmetry axis, and the first symmetry axis is substantially parallel to the second direction.

According to some exemplary embodiments, the display substrate further comprises a second display region, wherein the display substrate further comprises:

a plurality of second pixel structures disposed on the substrate and located in the second display region, at least one of the second pixel structures including a fourth sub-pixel and a fifth sub-pixel;

wherein the pixel defining layer further comprises a plurality of fourth openings and a plurality of fifth openings,

the color of light emitted by the first sub-pixel is the same as that of light emitted by the fourth sub-pixel, and the color of light emitted by the second sub-pixel is the same as that of light emitted by the fifth sub-pixel;

the fourth sub-pixel comprises a fourth opening and the fifth sub-pixel comprises a fifth opening;

the area of the orthographic projection of the first opening of the first sub-pixel on the substrate base plate is smaller than the area of the orthographic projection of the fourth opening of the fourth sub-pixel on the substrate base plate, and the area of the orthographic projection of the second opening of the second sub-pixel on the substrate base plate is smaller than the area of the orthographic projection of the fifth opening of the fifth sub-pixel on the substrate base plate.

According to some exemplary embodiments, at least one of the second pixel structures further includes a plurality of sixth sub-pixels, and the third sub-pixels and the sixth sub-pixels emit light of the same color;

the pixel defining layer further comprises a plurality of sixth openings, the sixth sub-pixels comprising sixth openings; and

the area of the orthographic projection of the third opening of the third sub-pixel on the substrate is smaller than the area of the orthographic projection of the sixth opening of the sixth sub-pixel on the substrate.

According to some exemplary embodiments, the plurality of second pixel structures are arranged on the substrate in an array along a first direction and a second direction to form sub-pixel rows and sub-pixel columns; the centers of at least some of the sub-pixels located in the first display region and at least one of the sub-pixels located in the second display region are substantially located on the same line parallel to the first direction or the second direction, wherein the colors of the at least some of the sub-pixels located in the first display region and the at least one of the sub-pixels located in the second display region are the same.

According to some exemplary embodiments, in the same sub-pixel row, a line connecting centers of at least some sub-pixels located in the first display region and at least one sub-pixel located in the second display region is a broken line, wherein colors of the at least some sub-pixels located in the first display region and the at least one sub-pixel located in the second display region are the same, the broken line includes a plurality of line segments, at least one line segment forms a fifth angle with respect to the first direction, and the fifth angle is greater than 0 ° and equal to or less than 30 °; and/or in the same sub-pixel column, a connecting line of centers of at least some sub-pixels located in the first display area and at least one sub-pixel located in the second display area is a broken line, wherein the colors of the at least some sub-pixels located in the first display area and the at least one sub-pixel located in the second display area are the same, the broken line comprises a plurality of line segments, at least one line segment forms a sixth angle with respect to the first direction, and the sixth angle is greater than 0 ° and less than or equal to 30 °.

According to some exemplary embodiments, the light emitting layers of the same-color sub-pixels respectively located in the first display region and the second display region have substantially the same shape; and/or the presence of a gas in the gas,

the areas of orthographic projections of the light emitting layers of the sub-pixels of the same color on the substrate are substantially equal, wherein the sub-pixels are respectively located in the first display area and the second display area.

In another aspect, a display device is provided, wherein the display device comprises the display substrate as described above.

Drawings

The features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

Fig. 1 is a schematic plan view of a display device according to some exemplary embodiments of the present disclosure, in which a planar structure of a display substrate included in the display device is schematically illustrated;

fig. 2 is a schematic cross-sectional view of a display device according to some exemplary embodiments of the present disclosure, taken along line AA' in fig. 1;

fig. 3A is a partial structural schematic view of a display substrate in a second display region according to some exemplary embodiments of the present disclosure;

fig. 3B is a partial structural schematic view of a display substrate in a second display region according to other exemplary embodiments of the present disclosure;

fig. 4 is a partial structural view of a display substrate in a first display region, schematically illustrating a pixel arrangement structure of one repeating unit located in the first display region, according to some exemplary embodiments of the present disclosure;

fig. 5 is a partial structure schematic view of a display substrate in a connection region between a first display region and a second display region according to some exemplary embodiments of the present disclosure;

FIG. 6 is a schematic view of the shape of one of the openings shown in FIG. 3B;

fig. 7 and 8 are partial structural views of a display substrate in a first display region, schematically illustrating one first repeating unit, according to some exemplary embodiments of the present disclosure, respectively;

fig. 9A is a partial structural view of a display substrate in a first display region, schematically illustrating one first repeating unit, according to some exemplary embodiments of the present disclosure;

FIG. 9B is a schematic view of the shape of one of the openings in FIG. 9A;

fig. 10A is a partial structural view of a display substrate in a first display region, schematically illustrating one first repeating unit, according to some exemplary embodiments of the present disclosure;

FIG. 10B is a schematic view of the shape of one of the openings in FIG. 10A;

fig. 11 to 21 are partial structural views of a display substrate in a first display region, respectively, schematically illustrating one first repeating unit, according to some exemplary embodiments of the present disclosure;

fig. 22 is a partial structural view of a display substrate in a first display region, schematically illustrating a pixel arrangement structure of a plurality of repeating units located in the first display region, according to some exemplary embodiments of the present disclosure;

FIG. 23 is a schematic cross-sectional view taken along line BB' in FIG. 4;

FIG. 24 is a schematic cross-sectional view taken along line CC' of FIG. 3A; and

fig. 25 is an equivalent circuit diagram of one pixel driving circuit of a display substrate according to some exemplary embodiments of the present disclosure.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described below clearly and completely with reference to the accompanying drawings. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of the disclosure.

It should be noted that in the drawings, the size and relative sizes of elements may be exaggerated for clarity and/or descriptive purposes. As such, the sizes and relative sizes of the respective elements are not necessarily limited to those shown in the drawings. In the description and drawings, the same or similar reference numerals denote the same or similar parts.

When an element is referred to as being "on," "connected to" or "coupled to" another element, it can be directly on, connected or coupled to the other element or intervening elements may be present. However, when an element is referred to as being "directly on," "directly connected to" or "directly coupled to" another element, there are no intervening elements present. Other terms and/or expressions which have been used to describe the relationship of elements between them should be interpreted in a similar manner, e.g., "between" and "directly between", "adjacent" and "directly adjacent" or "on. Further, the term "connected" may refer to physical, electrical, communication, and/or fluid connections. Further, the X-axis, Y-axis, and Z-axis are not limited to the three axes of the rectangular coordinate system, and may be interpreted in a broader sense. For example, the X, Y, and Z axes may be perpendicular to each other, or may represent different directions that are not perpendicular to each other. For purposes of this disclosure, "at least one of X, Y and Z" and "at least one selected from the group consisting of X, Y and Z" can be interpreted as X only, Y only, Z only, or any combination of two or more of X, Y and Z such as XYZ, XYY, YZ and ZZ. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

It should be noted that, although the terms "first", "second", etc. may be used herein to describe various elements, components, elements, regions, layers and/or sections, these elements, components, elements, regions, layers and/or sections should not be limited by these terms. Rather, these terms are used to distinguish one element, component, element, region, layer or section from another. Thus, for example, a first component, a first member, a first element, a first region, a first layer, and/or a first portion discussed below could be termed a second component, a second member, a second element, a second region, a second layer, and/or a second portion without departing from the teachings of the present disclosure.

For purposes of description, spatial relational terms, such as "upper," "lower," "left," "right," and the like may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features.

Herein, the expression "repeating unit" may mean that at least two or more units are disposed in the display substrate and the units are repeated in close proximity. The repeating unit may represent a combination of a plurality of sub-pixels, for example, a combination of a plurality of sub-pixels for displaying one pixel point, and a plurality of "repeating units" are repeatedly arranged in an array on the substrate base. For example, one repeating unit may include at least one pixel, e.g., may include 2, 3, 4, or more sub-pixels. Further, herein, for convenience of description, the repeating unit located in the first display region is referred to as a first repeating unit, and the repeating unit located in the second display region is referred to as a second repeating unit. Herein, the expression "repeating unit" may also be referred to as "pixel structure".

Herein, the expression "pixel density" denotes the number of repeating units or sub-pixels per unit area. Similarly, the expression "distribution density" denotes the number of components (e.g., repeating units, sub-pixels, spacers, etc.) per unit area.

Herein, unless otherwise specifically stated, the expression "opening" means an opening of the pixel defining layer in each sub-pixel, which exposes at least a part of an anode structure of a light emitting device of the sub-pixel, in which opening at least a part of a light emitting layer of the light emitting device is also located, i.e., which opening corresponds to a light emitting region of the sub-pixel.

Herein, unless otherwise specifically stated, the expression "center of an opening" means a geometric center or centroid of an orthographic projection of the opening on a substrate board of a substrate. For example, in the case where the opening is circular, the center of the opening is the center of the circle; when the opening is an ellipse, the center of the opening is the center of the ellipse, namely the intersection point of the major axis and the minor axis of the ellipse; in the case where the opening is rectangular, the center of the opening is the center of the rectangle, i.e., the intersection of two diagonal lines of the rectangle.

Herein, unless otherwise specifically stated, the expression "a and B are substantially located on the same straight line extending parallel to the first direction" includes the following cases: a and B are located on the same straight line extending parallel to the first direction; the positions of A and B have a certain error in the direction perpendicular to the first direction, the error being less than or equal to + -5 microns.

In this context, unless otherwise specified, "distance between the first opening and the second opening" and the like means a distance between the center of the first opening and the center of the second opening, "spaced distance between the first opening and the second opening" and the like means a distance between an edge of the first opening closest to the second opening and an edge of the second opening closest to the first opening.

An embodiment of the present disclosure provides a display substrate, including a first display region, wherein the display substrate includes: a substrate base plate; a first pixel structure located in the first display region, the first pixel structure including two first sub-pixels and two second sub-pixels; and a pixel defining layer disposed on the substrate, the pixel defining layer including a first opening and a second opening in the first display region, wherein the first sub-pixel includes the first opening and the second sub-pixel includes the second opening; in the first pixel structure, orthographic projection graphs of first openings of two first sub-pixels on the substrate respectively have a first center and a third center, orthographic projection graphs of second openings of two second sub-pixels on the substrate respectively have a second center and a fourth center, the first center, the second center, the third center and the fourth center are sequentially connected to form a first quadrangle, the side lengths of at least two sides in the first quadrangle are not equal to each other, and the ratio of the side lengths of at least two sides ranges from 0.8 to 1.2. By the mode, the opening of each sub-pixel can be improved on the premise of basically not increasing the area of the anode structure, so that the service life of the OLED display device is prolonged.

Fig. 1 is a schematic plan view of a display device according to some exemplary embodiments of the present disclosure, in which a plan structure of a display substrate included in the display device is schematically illustrated. Fig. 2 is a schematic cross-sectional view of a display device according to some exemplary embodiments of the present disclosure, taken along line AA' in fig. 1.

As shown in fig. 1, a display device according to an embodiment of the present disclosure includes a display substrate 10. The display substrate 10 includes a display area, which may include a first display area AA1 and a second display area AA 2. For example, the first display area AA1 and the second display area AA2 do not overlap with each other. For example, the second display area AA2 at least partially surrounds (e.g., completely surrounds) the first display area AA 1.

For a display substrate having an off-screen sensor (e.g., an image sensor), to ensure that the off-screen sensor (e.g., the image sensor) has a better imaging effect or other effects, the light transmittance of the display area corresponding to the off-screen sensor may be greater than the light transmittance of the other display areas of the display substrate.

As shown in fig. 2, the display substrate 10 may include a substrate 1. The sensor 2 may be disposed on the back side (shown as the lower side in fig. 2, for example, the side opposite to the light emitting direction in the display) of the substrate base plate 1 on the first display area AA1, and the first display area AA1 may satisfy the imaging requirement of the sensor 2 for light transmittance.

For example, the light transmittance of the first display area AA1 is greater than that of the second display area AA 2. The sensor 2 is, for example, an image sensor or an infrared sensor. The sensor 2 is configured to receive light from the display side (the upper side in fig. 2, for example, in the display light emitting direction, or the direction in which the human eyes are located when displaying) of the display substrate 10, so that operations such as image capturing, distance sensing, light intensity sensing, and the like can be performed, and the light is irradiated onto the sensor through, for example, the first display area AA1, and is thus sensed by the sensor.

It should be noted that, in the illustrated exemplary embodiment, the second display area AA2 completely surrounds the first display area AA1, but the embodiments of the present disclosure are not limited thereto. For example, in other embodiments, the first display area AA1 may be located at an edge of an upper side of the display substrate, for example, the first display area AA1 is surrounded on three sides by the second display area AA2, and an upper side thereof is flush with an upper side of the display substrate. For another example, the first display area AA1 may be located at an upper edge of the display substrate and arranged along the entire width of the display substrate.

For example, the shape of the first display area AA1 may be a circle, an ellipse, a drop shape, a rectangle, or the like, and the shape of the second display area AA2 may be a circle, an ellipse, or a rectangle, but the embodiment of the present disclosure is not limited thereto. For another example, the shapes of the first display area AA1 and the second display area AA2 may be both rectangles, rounded rectangles, or other suitable shapes.

In the display substrates shown in fig. 1 to 2, OLED display technology may be employed. The OLED display substrate has the advantages of wide viewing angle, high contrast, fast response, low power consumption, foldability, flexibility and the like, and is increasingly widely applied to display products. With the development and deep application of OLED display technology, the demand for high-screen-ratio display screens is more and more strong. In the display substrate shown in fig. 1 to 2, an arrangement of an off-screen camera is employed. Therefore, the notch area can be eliminated, holes are prevented from being dug in the display screen, the screen occupation ratio can be improved, and better visual experience is achieved.

In addition, the display substrate may further include a driving circuit layer, a light emitting device layer, and an encapsulation layer disposed on the substrate 1. For example, a pixel driving circuit 3, a light emitting device layer 4, and an encapsulation layer 5 are schematically illustrated in fig. 2. The pixel driving circuit 3 includes a pixel driving circuit structure, and the light emitting device layer 4 includes a light emitting device such as an OLED. The pixel driving circuit structure controls the light emitting device of each sub-pixel to emit light so as to realize a display function. The pixel driving circuit structure includes a thin film transistor, a storage capacitor, and various signal lines. The various signal lines include a gate line, a data line, an ELVDD power line, an ELVSS power line, and the like, so as to supply various signals such as a control signal, a data signal, a power supply voltage, and the like to the pixel driving circuit in each sub-pixel.

Fig. 3A is a partial structural schematic view of a display substrate in a second display region according to some exemplary embodiments of the present disclosure. Fig. 3B is a partial structural schematic view of a display substrate in a second display region according to other exemplary embodiments of the present disclosure. Fig. 4 is a partial structural view of a display substrate in a first display region according to some exemplary embodiments of the present disclosure, schematically illustrating a pixel arrangement structure of one repeating unit located in the first display region. Fig. 5 is a partial structure view of a display substrate in a connection region between a first display region and a second display region according to some exemplary embodiments of the present disclosure.

Referring to fig. 3A to 5, the first display area AA1 includes a plurality of first repeating units (i.e., first pixel structures) P1 arranged in an array, and the second display area AA2 includes a plurality of second repeating units (i.e., second pixel structures) P2 arranged in an array. Each of the repeating units P1, P2 may include a plurality of sub-pixels. In some embodiments, each first repeating unit P1 may include at least one first pixel unit, each first pixel unit may further include a plurality of sub-pixels, such as a red sub-pixel, a green sub-pixel, a blue sub-pixel; likewise, the second repeating unit P2 may include at least one second pixel unit, and each of the second pixel units may further include a plurality of sub-pixels, such as a red sub-pixel, a green sub-pixel, and a blue sub-pixel.

It should be noted that, the embodiments of the present disclosure are described by taking red, green and blue as examples, but the embodiments of the present disclosure are not limited thereto, that is, each repeating unit may include at least two different color sub-pixels, for example, a fourth sub-pixel, a fifth sub-pixel and a sixth sub-pixel, and the first color, the second color and the third color are different colors from each other. Herein, for convenience of description, a plurality of sub-pixels included in the first pixel unit are respectively expressed as a first sub-pixel, a second sub-pixel, and a third sub-pixel, and a plurality of sub-pixels included in the second pixel unit are respectively expressed as a fourth sub-pixel, a fifth sub-pixel, and a sixth sub-pixel. For example, the first sub-pixel and the fourth sub-pixel emit light of the same color, such as red; the color of light emitted by the second sub-pixel and the fifth sub-pixel is the same, such as blue; the third sub-pixel and the sixth sub-pixel emit light of the same color, for example, green.

For example, in some exemplary embodiments of the present disclosure, one first pixel unit includes at least one (e.g., 1 illustrated in fig. 4) first sub-pixel, at least one (e.g., 1 illustrated in fig. 4) second sub-pixel, and at least one (e.g., 2 illustrated in fig. 4) third sub-pixel. For convenience of description, the first sub-pixel, the second sub-pixel, and the third sub-pixel included in the first pixel unit are denoted by reference numerals SP1, SP2, and SP3, respectively. One second pixel unit includes at least one (e.g., 1 illustrated in fig. 5) fourth sub-pixel, at least one (e.g., 1 illustrated in fig. 5) fifth sub-pixel, and at least one (e.g., 2 illustrated in fig. 5) sixth sub-pixel. For convenience of description, the fourth, fifth, and sixth sub-pixels included in the second pixel unit are denoted by reference numerals SP4, SP5, and SP6, respectively. For example, the first color may be red, the second color may be blue, and the third color may be green.

The sub-pixel can comprise a light-emitting device and a pixel driving circuit for driving the light-emitting device to emit light, the light-emitting device can comprise a first electrode, a second electrode and a light-emitting layer positioned in the first electrode, the pixel driving circuit can comprise a transistor, a capacitor and the like, the pixel driving circuit receives signals transmitted by signal lines arranged on a display substrate, generates current for driving the light-emitting device, and achieves the purpose of driving the light-emitting device to emit light by being connected with one of the first electrode or the second electrode. For example, the pixel driving circuit is disposed on the substrate, and the light emitting device is located on a side of the pixel driving circuit away from the substrate. In some embodiments, the display substrate further comprises a pixel defining layer disposed on a side of the first electrode away from the pixel driving circuit, the pixel defining layer comprises a plurality of openings, each sub-pixel corresponds to at least one (e.g., one) of the openings of the pixel defining layer, and an actual light emitting area or display area of the sub-pixel is substantially equivalent to the opening of the pixel defining layer corresponding to the sub-pixel. In some embodiments, the area of the opening or the actual light-emitting area of the pixel defining layer corresponding to each sub-pixel is smaller than the area of the first electrode, and the projection on the substrate base plate completely falls within the projection of the first electrode on the substrate base plate. For convenience of illustration, the approximate position and shape of the opening of the pixel defining layer of the sub-pixel are shown in each of fig. 3B to 5 to represent the distribution of the respective sub-pixels.

It should be noted that, unless otherwise specifically stated, the projection, area, etc. of a sub-pixel may be represented by the projection, area, etc. of the opening of the sub-pixel in this document.

For example, in some embodiments of the present disclosure, the arrangement of the sub-pixels in each repeating unit may refer to a conventional pixel arrangement, such as GGRB, RGBG, RGB, and the like, which is not limited by the embodiments of the present disclosure.

As shown in fig. 3B to 5, the first display area AA1 has a first pixel density, and the second display area AA2 has a second pixel density not less than the first pixel density, for example, the second pixel density is greater than the first pixel density. For example, herein, the pixel density may be a proportion of an actual light emitting region of each sub-pixel in a unit area to the unit area. Or, for example, the pixel density is a ratio of the anode area of each sub-pixel in a unit area to the unit area. Or, for example, pixel density reflects the proportion of an area of a unit area that is opaque or has relatively low light transmittance. Embodiments of the present disclosure are not limited in this regard. In the first display area AA1, the blank areas between the plurality of first repeating units P1 may allow more light to pass therethrough, thereby increasing the light transmittance of the areas. Accordingly, the first display area AA1 has a greater light transmittance than the second display area AA 2.

Note that, herein, the blank region between the plurality of first repeating units P1 may be referred to as a light-transmitting region.

Referring to fig. 3A to 5, the display substrate may include a plurality of openings respectively located in a plurality of sub-pixels in the first and second display areas AA1 and AA2 to expose at least a portion of an anode structure of the corresponding sub-pixel. For convenience of description, the opening of the first sub-pixel SP1 located in the first display area AA1 is referred to as a first opening, which is denoted by reference numeral 101; an opening of the second sub-pixel SP2 located in the first display area AA1 is referred to as a second opening, which is denoted by reference numeral 102; an opening of the third sub-pixel SP3 located in the first display area AA1 is referred to as a third opening, which is denoted by reference numeral 103; an aperture of the fourth sub-pixel SP4 located in the second display area AA2 is referred to as a fourth aperture, which is denoted by reference numeral 201; an aperture of the fifth sub-pixel SP5 located in the second display area AA2 is referred to as a fifth aperture, which is denoted by reference numeral 202; an aperture of the sixth sub-pixel SP6 located in the second display area AA2 is referred to as a sixth aperture, which is denoted by reference numeral 203.

As shown in fig. 3A and 3B, the plurality of fourth sub-pixels SP4 and the plurality of fifth sub-pixels SP5 are alternately arranged in a first direction (X direction shown in fig. 3A and 3B) to form a first pixel row 01, the plurality of sixth sub-pixels SP6 are arranged in the first direction to form a second pixel row 02, and the first pixel row 01 and the second pixel row 02 are alternately arranged in a second direction (Y direction shown in fig. 3A and 3B) crossing the first direction X and are shifted from each other in the first direction. For example, the adjacent fourth and fifth sub-pixels SP4 and SP5 are arranged in the first direction X. As shown in fig. 3A and 3B, the plurality of fourth sub-pixels SP4 and the plurality of fifth sub-pixels SP5 are alternately arranged in the second direction Y to form a plurality of first pixel columns 03, the plurality of sixth sub-pixels SP6 are arrayed in both the first direction X and the second direction Y to form a plurality of second pixel rows 02 and a plurality of second pixel columns 04, the plurality of first pixel columns 03 and the plurality of second pixel columns 04 are alternately arranged in the first direction and are staggered from each other in the second direction, that is, the second pixel row 02 where one sixth sub-pixel SP6 is located between two adjacent first pixel rows 01, and the second pixel column 04 where the sixth sub-pixel SP6 is located between two adjacent first pixel columns 03.

For example, the first direction X intersects the second direction Y. For example, the angle between the first direction and the second direction may be 80-100 degrees. For example, the angle between the first direction and the second direction may be 85-95 degrees. For example, the first direction and the second direction may be perpendicular, but embodiments of the present disclosure are not limited thereto, and the first direction and the second direction may not be perpendicular. In embodiments of the present disclosure, the first direction and the second direction may be interchanged.

Referring collectively to fig. 4 through 5, the first repeating unit P1 may include at least 2 (2 shown in fig. 4) first pixel units. Each of the first pixel units includes 4 sub-pixels, i.e., 1 first sub-pixel SP1, 1 second sub-pixel SP2, and 2 third sub-pixels SP 3. In one first repeating unit P1, a plurality of sub-pixels are arranged in 4 rows and 4 columns. In the first row, the first and second subpixels SP1 and SP2 are disposed in the first and third columns, respectively. In the second row, two third subpixels SP3 are disposed in the second column and the fourth column, respectively. In the third row, the second subpixel SP2 and the first subpixel SP1 are disposed in the first column and the third column, respectively. In the fourth row, two third sub-pixels SP3 are disposed in the second column and the fourth column, respectively. That is, in the first display area AA1, the first and second subpixels SP1 and SP2 of the plurality of first pixel units are alternately distributed in the first and second directions X and Y, and the third subpixels SP3 of the plurality of first pixel units are arrayed in the first and second directions X and Y.

In other words, in the first display area AA1, the first and second sub-pixels SP1 and SP2 are arranged in an array in the first direction X and the second direction Y, the plurality of third sub-pixels SP3 are arranged in an array in the first direction X and the second direction Y, at least one third sub-pixel SP3 is located inside the first quadrangle S1, and a projection of the third sub-pixel SP3 in the first direction X does not overlap a projection of each of the first and second sub-pixels SP1 and SP2 in the first direction X, and a projection of the third sub-pixel SP3 in the second direction Y does not overlap a projection of each of the first and second sub-pixels SP1 and SP2 in the second direction Y.

For example, in the embodiment of the present disclosure, a plurality of first repeating units P1 are disposed on the substrate in an array along the first direction X and the second direction Y to form sub-pixel rows and sub-pixel columns. A line connecting the centers of the first apertures 101 of the plurality of first sub-pixels and the second apertures 102 of the plurality of second sub-pixels in the same sub-pixel row is a folding line LP1, the folding line LP1 includes a plurality of line segments, at least one of the line segments forms a third angle α 3 with respect to the first direction X, the third angle α 3 is greater than 0 ° and equal to or less than 30 °, for example, the third angle α 3 is greater than 0 ° and equal to or less than 20 °. For another example, referring to fig. 22, a connection line between centers of the first openings of the plurality of first sub-pixels and the second openings of the plurality of second sub-pixels of the same sub-pixel column is a folding line LP3, the folding line LP3 may include a plurality of line segments, at least one of the line segments forms a fourth angle α 4 with respect to the second direction Y, and the fourth angle α 4 is greater than 0 ° and equal to or less than 30 °, for example, the fourth angle α 4 is greater than 0 ° and equal to or less than 20 °.

The second repeating unit P2 may include at least 2 (2 shown in fig. 3A and 3B) second pixel units. Each of the second pixel units includes 4 sub-pixels, i.e., 1 fourth sub-pixel SP4, 1 fifth sub-pixel SP5, and 2 sixth sub-pixels SP 6. In one second repeating unit P2, a plurality of sub-pixels are arranged in 4 rows and 4 columns. In the first row, the fourth subpixel SP4 and the fifth subpixel SP5 are disposed in the first column and the third column, respectively. In the second row, two sixth subpixels SP6 are disposed in the second column and the fourth column, respectively. In the third row, the fifth subpixel SP5 and the fourth subpixel SP4 are disposed in the first column and the third column, respectively. In the fourth row, two sixth subpixels SP6 are disposed in the second column and the fourth column, respectively. That is, in the second display area AA2, the fourth and fifth subpixels SP4 and SP5 of the plurality of second pixel units are alternately distributed in the first direction X and the second direction Y, and the sixth subpixels SP6 of the plurality of second pixel units are arrayed in the first direction X and the second direction Y.

As shown in fig. 5, the second repeating units P2 are disposed on the substrate in an array along the first direction X and the second direction Y to form sub-pixel rows and sub-pixel columns. At least some of the sub-pixels located in the first display area AA1 and the same-color sub-pixels located in the second display area AA2 have centers substantially located on the same straight line parallel to the first direction X or the second direction Y. For example, in fig. 5, the centers of the plurality of second subpixels SP2 located in the first display area AA1 and the fifth subpixel SP5 located in the second display area AA2 are substantially located on the same straight line (e.g., the straight line LL1 shown in fig. 5) parallel to the first direction X. Wherein, the colors of the plurality of second sub-pixels SP2 located in the first display area AA1 and the fifth sub-pixel SP5 located in the second display area AA2 are the same.

With continued reference to fig. 5, in the same sub-pixel row, a connection line between at least some of the sub-pixels located in the first display area AA1 and the center of the sub-pixels located in the second display area AA2 is a broken line, wherein at least some of the sub-pixels located in the first display area AA1 and the sub-pixels located in the second display area AA2 have the same color, and the broken line includes a plurality of line segments, at least one of the line segments has a fifth angle with respect to the first direction X, and the fifth angle is greater than 0 ° and less than or equal to 30 °, for example, the fifth angle is greater than 0 ° and less than or equal to 20 °; and/or, in the same sub-pixel column, a connection line between at least some sub-pixels located in the first display area AA1 and the center of the sub-pixels located in the second display area AA2 is a broken line, and at least some sub-pixels located in the first display area AA1 and the sub-pixels located in the second display area AA2 have the same color, where the broken line includes a plurality of line segments, at least one line segment has a sixth angle with respect to the first direction, and the sixth angle is greater than 0 ° and less than or equal to 30 °, for example, the sixth angle is greater than 0 ° and less than or equal to 20 °. For example, in fig. 5, in the same sub-pixel row, a connection line between the centers of the first sub-pixel SP1 located in the first display area AA1 and the fourth sub-pixel SP4 located in the second display area AA2 is a folding line LP2, the colors of the first sub-pixel SP1 located in the first display area AA1 and the fourth sub-pixel SP4 located in the second display area AA2 are the same, the folding line LP2 includes a plurality of line segments, at least one of the line segments is a fifth angle with respect to the first direction X, and the fifth angle is greater than 0 ° and less than or equal to 30 °, for example, the fifth angle is greater than 0 ° and less than or equal to 20 °.

In the embodiment of the present disclosure, the first sub-pixel, the second sub-pixel and the third sub-pixel are sub-pixels emitting light of different colors, and the fourth sub-pixel, the fifth sub-pixel and the sixth sub-pixel are sub-pixels emitting light of different colors. For example, the first subpixel and the fourth subpixel are red subpixels, the second subpixel and the fifth subpixel are blue subpixels, and the third subpixel and the sixth subpixel are green subpixels. This is not to be construed as limiting the embodiments of the disclosure.

For example, the area of the opening of at least one blue sub-pixel (the second sub-pixel or the fifth sub-pixel) is larger than the area of the opening of at least one red sub-pixel (the first sub-pixel or the fourth sub-pixel), and the area of the light emitting region of at least one red sub-pixel is larger than the area of the opening of at least one green sub-pixel ((the third sub-pixel or the sixth sub-pixel)), so as to prolong the service life of the display substrate.

As shown in fig. 3A and 3B, an orthogonal projection of the fourth opening 201 of the fourth subpixel SP4 on the substrate base may have a diamond shape, a rounded diamond shape, or the like. An orthogonal projection of the fifth opening 202 of the fifth subpixel SP5 on the substrate base may have a diamond shape, a rounded diamond shape, or the like. The orthogonal projection of the sixth opening 203 of the sixth sub-pixel SP6 on the substrate base may have a shape of a diamond, a rounded diamond, a rectangle, a rounded rectangle, an octagon, or the like.

For example, as shown in fig. 3A and 3B, the sixth apertures 203 of the neighboring sixth subpixels SP6 have rounded rectangular shapes and are symmetrical to each other.

As shown in fig. 3B, in the second display area AA2, the openings of at least some of the sub-pixels are shaped in a pattern including rounded corners, and the light emitting areas of the sub-pixels are also shaped in a pattern including rounded corners, for example, the anodes of the sub-pixels may also be shaped in a pattern including rounded corners. The pattern of openings of the sub-pixels may comprise four straight sides, at least two adjacent straight sides being connected by a curved section, the curved section forming a rounded corner. However, the embodiments of the present disclosure are not limited thereto, and the pattern of the opening of the sub-pixel may further include three straight sides, five straight sides, or six straight sides, and the number of corners included in the opening may also vary accordingly.

For example, the orthographic projection of the opening of the pixel defining layer on the substrate base plate is located within the orthographic projection of the corresponding light emitting layer on the substrate base plate, i.e. the light emitting layer covers the opening of the pixel defining layer. For example, the area of the light-emitting layer is larger than the area of the corresponding pixel defining layer opening, i.e. the light-emitting layer at least includes a portion on the solid structure covering the pixel defining layer in addition to the portion located inside the pixel defining layer opening. The light-emitting layer is typically covered over the solid structure of the pixel defining layer at each boundary of the pixel defining layer opening.

For example, the light emitting layers of the fourth and fifth sub-pixels SP4 and SP5 adjacent to each other may or may not overlap on the pixel defining layer. For example, the light emitting layers of the fourth and sixth sub-pixels SP4 and SP6 adjacent to each other may or may not overlap on the pixel defining layer. For example, the light emitting layers of the fifth and sixth sub-pixels SP5 and SP6 adjacent to each other may or may not overlap on the pixel defining layer.

Fig. 6 is a schematic view of the shape of one of the openings shown in fig. 3B. As shown in fig. 3B and fig. 6, each side of each opening 201, 202, 203 or the extension line thereof is connected in sequence to form a polygon 400; among the plurality of corner portions of the openings 201, 202, 203 of at least one sub-pixel, at least a fourth corner portion 4011 is included, and the area of a region N0 where the fourth corner portion 4011 and the vertex 401 of the polygon 400 corresponding thereto do not overlap is larger than the area of a region N0 where each corner portion of at least some of the other corner portions and the vertex 401 of the polygon 400 corresponding thereto do not overlap.

For example, fig. 6 schematically illustrates that there are non-overlapping regions N0 at all corners of the polygon 400, but the embodiments of the present disclosure are not limited thereto, and there may also be non-overlapping regions at some corners of the polygon.

For example, as shown in fig. 3B and fig. 6, in at least two different color sub-pixels (e.g., a fourth sub-pixel and a fifth sub-pixel, or a fourth sub-pixel and a sixth sub-pixel, or a fifth sub-pixel and a sixth sub-pixel, or a fourth sub-pixel, a fifth sub-pixel and a sixth sub-pixel), the shape of the openings 201, 202 and 203 is the shape of the polygon 400 with at least one first vertex 401 cut off, for example, a section line 402 for cutting off the first vertex 401 of the polygon 400 may include a line segment with a regular shape, such as a curve, a straight line, or an irregular shape.

For example, the polygon 400 is schematically illustrated as a quadrilateral in the embodiments of the present disclosure, for example, the shape of the polygon corresponding to the sub-pixel of at least one color may be a rhombus, a rectangle, or a square, but the embodiments of the present disclosure are not limited thereto, and the polygon 400 may also be a triangle, a pentagon, or a hexagon, etc., which is not limited by the embodiments of the present disclosure. For example, the angles at the corners of the polygon may or may not be equal.

As shown in fig. 3B and 6, the top corners of the opening 202 include fourth corner portions 4011, and the fourth corner portions 4011 are corners formed by cutting off the first top corner 401 sandwiched by the two first edges 410 of the polygon 400. For example, the ratio of the truncated portion L1 of at least one of the two first sides 410 to the length of the first side 410 is 0.2-0.8. The remaining portion L2 of the first side 410 of the polygon 400 after being cut off the first line segment L1 forms the side of the opening 202 connected to the fourth corner 4011, for example, two ends of the fourth corner 4011 are respectively connected to two straight sides of the opening 202, and at least one of the two straight sides is the straight side of the first side 410 of the polygon 400 after being cut off the first line segment L1.

For example, the polygon 400 may be truncated at least one first corner 401 to form at least one fourth corner 4011. For example, a polygon 400 includes a plurality of first vertex angles 401 having the same degree, and a plurality of fourth corner portions 4011 formed by cutting the plurality of first vertex angles 401 have the same parameters such as shape and size.

As shown in fig. 3B and 6, the ratio of the length of the first line segment L1 to the length of the first side 410 is 0.2 to 0.8. For example, the ratio of the length of the first line L1 to the length of the first side 410 is 0.3-0.7; for example, the ratio of the length of the first line L1 to the length of the first side 410 is 0.4-0.6; for example, the ratio of the length of the first line segment L1 to the length of the first side 410 is 0.5.

For example, as shown in FIGS. 3B and 6, the ratio of the length of the first line segment L1 to the length of the remaining portion L2 is 0.25 to 4. For example, the ratio of the length of the first line segment L1 to the length of the remaining portion L2 is 1 ~ 3. The ratio of the length of the first line segment L1 to the length of the remaining portion L2 is 0.5-2.

For example, as shown in fig. 3B and 6, the number of the fourth corner portions 4011 in the at least two different color sub-pixels is different. For example, the different number of the fourth corners 4011 in the two different color sub-pixels may mean that: the number of first corner portions in the same color sub-pixel is the same, and the number of first corner portions in one sub-pixel is different from the number of first corner portions in another sub-pixel of a different color in two sub-pixels of different colors. For example, the different number of the fourth corner portions 4011 in the two different color sub-pixels 100 may also refer to: the number of first corners in the same color sub-pixel is the same, and the number of different color sub-pixels is different, then the total number of different color sub-pixels including the first corners is different.

For example, as shown in fig. 3B and 6, the different numbers of the fourth corners 4011 in the at least two different color sub-pixels are beneficial to adjust the brightness centers in at least a portion of the display area to make the distribution more uniform.

For example, as shown in fig. 3B, the openings of the same color sub-pixels have the same area, and the openings of different color sub-pixels have different areas.

For example, when the opening includes one fourth corner portion 4011, the geometric center of the opening is located on a side, away from the fourth corner portion 4011, of a midpoint of a vertex connecting a vertex of the first vertex 401 and a vertex opposite to the fourth corner portion 4011, whereby by adjusting the geometric center of at least part of the light emitting region, the luminance center in at least part of the display region can be adjusted to be more uniformly distributed.

For example, as shown in fig. 3B and fig. 6, in the display substrate provided in the embodiment of the present disclosure, by adjusting the shapes of the sub-pixels, the distance from the intersection of the extension lines of the two straight sides connected to the two ends of the first corner in the at least two color sub-pixels of the fourth sub-pixel, the fifth sub-pixel and the sixth sub-pixel to the geometric center of the light emitting region of the sub-pixel is different from the distance from the intersection of the two straight sides constituting the vertex angle of the light emitting region opposite to the first corner or the extension lines thereof to the geometric center of the light emitting region of the sub-pixel, so as to adjust the actual luminance centers of each virtual pixel unit, and make the distribution of the actual luminance centers in the display substrate more uniform.

For example, the number of the fourth corner portions 4011 in one color sub-pixel is one, and the number of the fourth corner portions 4011 in another color sub-pixel is more than one, and may be two, three or four, for example. For example, the number of the fourth corner portions 4011 in one color sub-pixel may be two, and the number of the fourth corner portions 4011 in another color sub-pixel may be three or four. For example, the number of the fourth corner portions 4011 in one color sub-pixel may be three, and the number of the fourth corner portions 4011 in another color sub-pixel may be four.

For example, as shown in fig. 3B and fig. 6, the fourth corner 4011 includes a vertex P, and the vertex P may be a curved line (i.e., an outer edge of the first corner) formed by a portion where two sides connected to two ends of the fourth corner 4011 extend and meet the vertex P on the connection line 403, so that the fourth corner 4011 becomes a rounded corner, in this case, the fourth corner 4011 may be in a range of n micrometers along the contour from the vertex P as a center, and n may have a value of 2 to 7 micrometers. When the first corner portion is a rounded chamfer and the vertex angle of the opening, which is opposite to the first corner portion, is a right angle or an acute angle, the distance from the intersection point of the extension lines of the two straight sides connected with the two ends of the first corner portion to the geometric center O of the opening is greater than the distance from the intersection point of the extension lines of the two straight sides forming the vertex angle, which is opposite to the first corner portion, to the geometric center O.

The "round chamfer" is a vertex angle formed by a section of curve, and the curve can be a circular arc or an irregular curve, such as a curve cut from an ellipse, a wavy line and the like. The disclosed embodiment schematically shows that the curve has an outwardly convex shape with respect to the geometric center O of the opening, but is not limited thereto, and the curve may also have an inwardly concave shape with respect to the geometric center O of the opening. For example, when the curve is an outwardly convex circular arc, the central angle of the circular arc may range from 10 ° to 150 °. For example, the central angle of the circular arc may range from 60 ° to 120 °. For example, the central angle of the circular arc may range from 90 °. For example, the fourth corner 4011 may include rounded corners having a curved length of 10 to 60 μm.

For example, when the fourth corner 4011 is rounded, the radius of curvature thereof may be 5 to 20 μm.

For example, as shown in fig. 3B, the openings 201, 202, 203 of the fourth sub-pixel SP4, the fifth sub-pixel SP5, and the sixth sub-pixel SP6 each include a fourth corner 4011, and the number of the fourth corners 4011 in the sub-pixels of different colors is different.

The embodiment of the present disclosure describes the first corners in the same color sub-pixel as the same shape (including parameters such as length and curvature) and number, and the first corners in different color sub-pixels as the same shape, but not limited thereto, the first corners in different color sub-pixels may be the same or different in shape.

For example, as shown in fig. 3B, the fourth sub-pixel SP4 includes four first corner portions 1011, the sixth sub-pixel SP6 includes two first corner portions 1011, and the fifth sub-pixel SP5 includes one first corner portion 1011.

Fig. 4 is a partial structural view of a display substrate in a first display region according to some exemplary embodiments of the present disclosure, schematically illustrating one first repeating unit. Fig. 5 schematically shows a pixel arrangement structure in a connection region between the first display region and the second display region. In the example of fig. 5, the pixel arrangement in the first display area AA1 adopts the embodiment shown in fig. 4, and the pixel arrangement in the second display area AA2 adopts the embodiment shown in fig. 3B. However, embodiments of the present disclosure are not limited thereto, and the pixel arrangement in the first display area AA1 according to various embodiments of the present disclosure may be used in combination with the pixel arrangement in the second display area AA2 illustrated in fig. 3A or 3B, respectively, without conflict.

It should be noted that the sub-pixels located in the first display area AA1 may include a first light emitting device. For example, the first light emitting device may include an anode structure, a light emitting layer, and a cathode structure that are stacked. It should be noted that, for clarity, the anode structure of the first light emitting device is used in the related drawings (for example, fig. 4) to schematically illustrate the first light emitting device. For example, in the first display area AA1, the anode structure of the first light emitting device includes an anode main body 501 and an anode connection part 502. The orthogonal projection of the anode body 501 on the substrate base plate 1 may have a regular shape, such as a rectangle, a rounded rectangle, or the like. A pixel driving circuit (to be described later) for driving the first light emitting device is further disposed in the first display area AA1, and the anode connection part 502 is electrically connected to the pixel driving circuit of the first light emitting device through the anode connection hole 503.

Each of the sub-pixels positioned in the first display area AA1 may include the first light emitting device 41. For example, the first light emitting device 41 may include an anode structure, a light emitting layer, and a cathode structure that are stacked. It should be noted that, for clarity, in fig. 4, the anode structure of the first light emitting device 41 is used to schematically illustrate the first light emitting device 41. For example, the first display area AA1 includes a plurality of first light emitting devices 41 arranged in an array, and the first light emitting devices 41 are configured to emit light.

In fig. 4 and the similar drawings below, the innermost figure represents the opening or light-emitting region of the sub-pixel, the outline substantially surrounding the opening and larger than the area of the pattern of the opening or light-emitting region of the sub-pixel is the outline of the anode structure of the sub-pixel, and the outermost outline is the outline of the opening of the sub-pixel of the same color in the second display region corresponding to the sub-pixel.

It should be further noted that, in the embodiment of the present disclosure, the light emitting layer may be formed by an evaporation process using a mask plate. The shapes and areas of the openings of the mask plate may be substantially uniform for the sub-pixels of the same color respectively located in the first display area AA1 and the second display area AA2, which is advantageous in implementing a mask process for forming the light emitting layer. Thus, in fig. 4 and the following similar figures, the innermost figure represents the opening or light emitting region of the sub-pixel, the outline substantially surrounding the opening and larger than the area of the pattern of the opening or light emitting region of the sub-pixel is the outline of the anode structure of the sub-pixel, and the outermost figure may be the outline of the light emitting layer of the sub-pixel, without conflict.

Referring to fig. 4 and 5, for the first repeating unit P1 located in the first display area AA1, an orthographic projection pattern of the first opening 101 of the first subpixel SP1 on the substrate 1 is droplet-shaped, an orthographic projection pattern of the second opening 102 of the second subpixel SP2 on the substrate 1 is circular, and an orthographic projection pattern of the third opening 103 of the third subpixel SP3 on the substrate 1 is circular.

In one of the first repeating units P1, the orthographic projection patterns of the first openings 101 of the two first sub-pixels SP1 on the substrate 1 respectively have a first center 1011 and a third center 1012, the orthographic projection patterns of the second openings 102 of the two second sub-pixels SP2 on the substrate 1 respectively have a second center 1021 and a fourth center 1022, the first center 1011, the second center 1021, the third center 1012 and the fourth center 1022 are sequentially connected to form a first quadrangle S1, and the side lengths of at least two sides in the first quadrangle S1 are not equal to each other. For example, the ratio of the side lengths of at least two sides in the first quadrangle S1 ranges from 0.8 to 1.2.

As shown in fig. 4, the first quadrilateral S1 has 4 sides SL1, SL2, SL3, SL4, side SL1 connecting the first center 1011 and the second center 1021, side SL2 connecting the second center 1021 and the third center 1012, side SL3 connecting the third center 1012 and the fourth center 1024, and side SL4 connecting the fourth center 1022 and the first center 1011. For example, side SL1 may have a side length substantially equal to side SL3, side SL2 may have a side length greater than side SL1 or side SL3, and side SL4 may have a side length less than side SL1 or side SL 3. For example, the ratio of the side length of side SL1 to the side length of side SL3 is about 1, the ratio of the side length of side SL2 to the side length of side SL1 or side SL3 is greater than 1 and equal to or less than 1.2, and the ratio of the side length of side SL4 to the side length of side SL1 or side SL3 is greater than or equal to or less than 0.8 and equal to or less than 1.

With continued reference to fig. 4 and 5, the first opening 101 of the at least one first sub-pixel includes a main portion 101A and an auxiliary portion 101B, an orthographic projection of the main portion 101A of the first opening on the substrate base 1 is circular, and an orthographic projection of the auxiliary portion 101B of the first opening on the substrate base 1 protrudes in the second direction Y with respect to the circular.

The orthographic projection pattern of the main body part 101A of the first opening on the substrate base plate 1 has a first center 1013. For a first opening 101 having a first center 1011, the first center 1011 of the first opening is offset in the second direction Y by a first offset distance DP1 relative to a first center 1013 of the body portion of the first opening. For a first opening 101 having a third center 1012, the third center 1012 of the first opening is offset in the second direction Y by a second offset distance DP2 relative to a first center 1013 of the body portion of the first opening.

The ratio of the first offset distance DP1 to the second offset distance DP2 may range from 0.8 to 1.2, e.g., the first offset distance DP1 is substantially equal to the second offset distance DP 2. For example, at least one of the first offset distance DP1 and the second offset distance DP2 may be 1-5 microns, e.g., 1-3 microns, about 1.2 microns, about 1.5 microns, etc.

For a first opening 101 having a first center 1011, a line connecting a first center 1013 of the first opening 101 and the second center 1021 is substantially parallel to the first direction X. For a first opening 101 having a third center 1012, a line connecting a first center 1013 of the first opening 101 and the fourth center 1022 is substantially parallel to the first direction X. Referring to fig. 4 and 5 in combination, for each sub-pixel located in the same row, the first center 1013 of the first opening 101 and the center of the second opening 102 (i.e., the center of the second opening 102) located in the first display area AA1, and the center 2011 of the fourth opening 201 and the center 2021 of the fifth opening 202 located in the second display area AA2 are located on a straight line parallel to the first direction X; the center of the third opening 103 (i.e., the center of the third opening 103) located in the first display area AA1 and the center 2031 of the sixth opening 203 located in the second display area AA2 are located on a straight line parallel to the first direction X.

It should be noted that, in the embodiments of the present disclosure, unless otherwise specifically stated, the arrangement of the sub-pixels may be implemented by rotating the sub-pixels by 90 °. That is, in some embodiments, for a first opening 101 having a first center 1011, a line connecting the first center 1013 of the first opening 101 and the second center 1021 may be substantially parallel to the second direction Y. For a first opening 101 having a third center 1012, a line connecting the first center 1013 of the first opening 101 and the fourth center 1022 may be substantially parallel to the second direction Y.

Referring to fig. 4, a line connecting the first center 1011 and the second center 1021 (i.e., the side SL1) is at a first angle with respect to the first direction X, the first angle being greater than 0 ° and less than 30 °. A line connecting the third center 1012 and the fourth center 1022 (i.e., side SL3) makes a second angle with respect to the first direction X, the second angle being greater than 0 ° and smaller than 30 °. For example, the first angle may be substantially equal to the second angle.

With continued reference to fig. 4, the third sub-pixel SP3 is located within the first quadrangle S1. It should be noted that, here, "the third sub-pixel SP3 is located in the first quadrangle S1" may include: an orthogonal projection of the third opening 103 of the third sub-pixel SP3 on the substrate base plate 1 falls within the first quadrangle S1, an orthogonal projection of the anode structure of the third sub-pixel SP3 on the substrate base plate 1 falls within the first quadrangle S1, and an orthogonal projection of the light emitting layer of the third sub-pixel SP3 on the substrate base plate 1 falls within the first quadrangle S1.

For example, an orthographic projection of at least one of the third openings 103 on the substrate base plate 1 falls within the first quadrangle S1 and has a fifth center 1031. In the embodiment shown in fig. 4, an orthographic projection of the third opening 103 on the substrate base plate 1 is circular, so the fifth center 1031 is a center of the third opening 103.

A separation distance (SY 1 in fig. 4) between the fifth center 1031 and the first center 1011 in the second direction Y is not equal to a separation distance (SY 2 in fig. 4) between the fifth center 1021 and the fourth center 1022 in the second direction Y. For example, spacing distance SY2 may be greater than spacing distance SY 1.

A separation distance (SY 3 in fig. 4) between the fifth center 1031 and the second center 1021 in the second direction Y is not equal to a separation distance (SY 4 in fig. 4) between the fifth center 1021 and the third center 1012 in the second direction Y. For example, spacing distance SY4 may be greater than spacing distance SY 3.

With continued reference to fig. 4, in one of the first repeating units P1, the orthographic projection pattern of the third openings 103 of the four third sub-pixels on the substrate base plate 1 has a fifth center 1031, a sixth center 1032, a seventh center 1033 and an eighth center 1034, respectively, and the fifth center 1031, the sixth center 1032, the seventh center 1033 and the eighth center 1034 are connected in sequence to form a second quadrangle S2. The ratio of any two of the side lengths of the four sides of the second quadrangle S2 ranges from 0.8 to 1.2. For example, the sides of the four sides of the second quadrangle S2 are substantially equal to each other. For example, the second quadrangle S2 is a square.

In the embodiment of the present disclosure, the first subpixel SP1 and the second subpixel SP2 are adjacent in both the first direction X and the second direction Y, and a distance in the first direction X between a center 1011 of the first opening 101 of the first subpixel SP1 and a center 1021 of the second opening 102 of the second subpixel SP2 adjacent in the first direction X is not equal to a distance in the second direction Y between the center 1011 of the first opening of the first subpixel and the center 1021 of the second opening of the second subpixel adjacent in the second direction Y. For example, referring to fig. 9A, the distance SD1 in the first direction X between the center 1011 of the first opening 101 of the first sub-pixel SP1 and the center 1021 of the second opening 102 of the second sub-pixel SP2 adjacent in the first direction X and the distance SD2 in the second direction Y between the center 1011 of the first opening of the first sub-pixel and the center 1021 of the second opening of the second sub-pixel adjacent in the second direction Y are not equal. For example, the ratio of distance SD1 to distance SD2 may range between 0.8 and 1, or alternatively, may range between 1 and 1.2.

In the embodiment of the present disclosure, for example, referring to fig. 9A, the shortest distance SSD1 in the first direction X of the boundary of the first aperture 101 of the first subpixel SP1 and the boundary of the second aperture 102 of the second subpixel SP2 adjacent in the first direction X is not equal to the shortest distance SSD2 in the second direction Y of the boundary of the first aperture 101 of the first subpixel SP1 and the boundary of the second aperture 102 of the second subpixel SP2 adjacent in the second direction Y. For example, the ratio of shortest distance SSD1 to shortest distance SSD2 may range between 0.8-1, or alternatively, may range between 1-1.2.

It is to be noted that, unless otherwise specifically stated, the expression "shortest distance" between a and B herein means a distance between a feature such as a portion, point or corner closest to B and a feature such as a portion, point or corner closest to B. When the "shortest distance" between a and B is not defined in direction, it represents the length of a line connecting a feature such as a portion, point, or corner where a is closest to B and a feature such as a portion, point, or corner where B is closest to a. When the "shortest distance" between a and B is defined by a direction, it means the length of a projection of a line between a feature such as a portion, point or corner where a is closest to B and a feature such as a portion, point or corner where B is closest to a, along or in that direction.

In an embodiment of the present disclosure, for example, sizes of orthographic projections of the openings of at least one of the first sub-pixel, the second sub-pixel, and the third sub-pixel on the substrate base in the first direction X and the second direction Y may be different, and for example, a ratio of sizes of orthographic projections of the openings of at least one of the first sub-pixel, the second sub-pixel, and the third sub-pixel on the substrate base in the first direction X and the second direction Y may range from 0.5 to 2.

In the embodiment of the present disclosure, the size of the first opening 101 of the first sub-pixel in the first direction X, the size of the second opening 102 of the second sub-pixel in the first direction X, and the size of the third opening 103 of the third sub-pixel in the first direction X may be different from each other, for example, the size of the second opening 102 of the second sub-pixel in the first direction X may be larger than the size of the first opening 101 of the first sub-pixel in the first direction X, for example, the ratio of the two ranges from 5 to 1.2. The size of the first opening 101 of the first sub-pixel in the first direction X may be larger than the size of the third opening 103 of the third sub-pixel in the first direction X, for example, the ratio of the two ranges from 5 to 1.2.

The size of the first opening 101 of the first sub-pixel in the second direction Y, the size of the second opening 102 of the second sub-pixel in the second direction Y, and the size of the third opening 103 of the third sub-pixel in the second direction Y may be different from each other, for example, the size of the second opening 102 of the second sub-pixel in the second direction Y may be larger than the size of the first opening 101 of the first sub-pixel in the second direction Y, for example, the ratio of the two ranges from 5 to 1.2. The size of the first opening 101 of the first sub-pixel in the second direction Y may be larger than the size of the third opening 103 of the third sub-pixel in the second direction Y, for example, the ratio of the two ranges from 5 to 1.2.

In the embodiment of the present disclosure, the pitch of the first openings 101 of the first sub-pixels adjacent in the first direction X, the pitch of the second openings 102 of the second sub-pixels adjacent in the first direction X, and the pitch of the third openings 103 of the third sub-pixels adjacent in the first direction X may be different from each other, for example, the pitch of the first openings 101 of the first sub-pixels adjacent in the first direction X may be larger than the pitch of the second openings 102 of the second sub-pixels adjacent in the first direction X, for example, the ratio of the two ranges between 3 to 1.1. The pitch of the second openings 102 of the second sub-pixels adjacent to each other in the first direction X may be greater than the pitch of the third openings 103 of the third sub-pixels adjacent to each other in the first direction X, for example, the ratio of the two ranges from 6 to 1.1.

The pitch of the first openings 101 of the first sub-pixels adjacent in the second direction Y, the pitch of the second openings 102 of the second sub-pixels adjacent in the second direction Y, and the pitch of the third openings 103 of the third sub-pixels adjacent in the second direction Y may be different from each other, for example, the pitch of the first openings 101 of the first sub-pixels adjacent in the second direction Y may be larger than the pitch of the second openings 102 of the second sub-pixels adjacent in the second direction Y, for example, a ratio of the two ranges between 3 and 1.1. The pitch of the second openings 102 of the second sub-pixels adjacent in the second direction Y may be greater than the pitch of the third openings 103 of the third sub-pixels adjacent in the second direction Y, for example, the ratio of the two ranges from 6 to 1.1.

Fig. 7 to 21 are partial structural views of a display substrate in a first display region, respectively, schematically illustrating one first repeating unit, according to some exemplary embodiments of the present disclosure.

It should be noted that, in the embodiments of the present disclosure, the characteristics such as the shape and the protruding direction of the opening of the sub-pixel in the first repeating unit are described by taking the sub-pixel of a certain color as an example, and without conflict, the characteristics such as the shape and the protruding direction of the opening of the sub-pixel in the first repeating unit may be applied to sub-pixels of other colors, for example, may be applied to a red sub-pixel, a blue sub-pixel, and a green sub-pixel; without conflict, the respective technical means described with respect to fig. 4, 7 to 21 may be freely combined.

It should also be noted that in the following description, features and different points of the various embodiments that are not described in the foregoing will be mainly described, and the same portions of the various embodiments may be referred to the foregoing description of the embodiments.

As shown in fig. 7, each sub-pixel in the first repeating unit P1 may be scaled down equally in each sub-pixel in the second repeating unit P2 shown in fig. 3B. For example, the first opening 101 of the first sub-pixel SP1 and the fourth opening 201 of the fourth sub-pixel SP4 have the same shape, and the area of the orthographic projection of the first opening 101 on the base substrate 1 is smaller than the area of the orthographic projection of the fourth opening 201 on the base substrate 1. For example, the area of the orthographic projection of the first opening 101 on the substrate base 1 may be 40% to 80%, for example about 50%, of the area of the orthographic projection of the fourth opening 201 on the substrate base 1. The second apertures 102 of the second sub-pixel SP2 have the same shape as the fifth aperture 202 of the fifth sub-pixel SP5, and the area of the orthogonal projection of the second apertures 102 on the base substrate 1 is smaller than the area of the orthogonal projection of the fifth aperture 202 on the base substrate 1. For example, the area of the orthographic projection of the second opening 102 on the substrate base plate 1 may be 40% to 80%, for example about 50%, of the area of the orthographic projection of the fifth opening 202 on the substrate base plate 1. The third opening 103 of the third sub-pixel SP3 has the same shape as the sixth opening 203 of the sixth sub-pixel SP6, and the area of the orthogonal projection of the third opening 103 on the base substrate 1 is smaller than the area of the orthogonal projection of the sixth opening 203 on the base substrate 1. For example, the area of the orthographic projection of the third opening 103 on the substrate base 1 may be 40% to 80%, for example, about 50%, of the area of the orthographic projection of the sixth opening 203 on the substrate base 1.

As shown in fig. 8, orthographic projections of the openings of the respective sub-pixels in the first repeating unit P1 on the substrate base plate 1 each have a circular shape. For example, the orthographic projections of the first aperture 101 of the first sub-pixel SP1, the second aperture 102 of the second sub-pixel SP2 and the third aperture 103 of the third sub-pixel SP3 on the substrate base plate 1 each have a circular shape. For example, the area of the orthographic projection of the first opening 101 on the substrate base 1 may be 40% to 80% of the area of the orthographic projection of the fourth opening 201 on the substrate base 1. The area of the orthographic projection of the second opening 102 on the substrate base plate 1 may be 40% to 80% of the area of the orthographic projection of the fifth opening 202 on the substrate base plate 1. The area of the orthographic projection of the third opening 103 on the base substrate 1 may be 40% to 80% of the area of the orthographic projection of the sixth opening 203 on the base substrate 1.

Referring to fig. 9A, orthographic projections of the first opening 101 and the third opening 103 on the base substrate 1 each have a droplet-shaped shape. For example, the third opening 103 of the at least one third sub-pixel includes a main portion 103A and an auxiliary portion 103B, an orthographic projection of the main portion 103A of the third opening on the substrate base plate 1 is circular, and an orthographic projection of the auxiliary portion 103B of the third opening on the substrate base plate 1 protrudes in the second direction Y with respect to the circular shape of the main portion 103A of the third opening.

Referring to fig. 4 and 9A, an orthogonal projection of the auxiliary portion 101B of the first opening 101 on the substrate base 1 protrudes toward an orthogonal projection of the anode connection hole VH1 of the first sub-pixel where the first opening 101 is located on the substrate base 1 with respect to a circle of the main portion 101A of the first opening 101. An orthogonal projection of the auxiliary portion 103B of the third opening 103 on the substrate base plate 1 protrudes with respect to a circular shape of the main portion 103A of the third opening 103 toward an orthogonal projection of the anode connection hole VH1 of the third sub-pixel where the third opening 103 is located on the substrate base plate 1.

For example, the auxiliary portion 101B of the first opening 101 has a pointed portion on a side close to the anode connection hole VH1 of the first sub-pixel. The auxiliary portion 103B of the third opening 103 has a pointed portion on a side close to the anode connection hole VH1 of the third sub-pixel.

Referring to fig. 10A, the auxiliary portion 101B of the first opening 101 has a rounded portion at a side close to the anode connection hole VH1 of the first sub-pixel. The auxiliary portion 103B of the third opening 103 has a rounded portion on a side close to the anode connection hole VH1 of the third sub-pixel.

For example, the radius of curvature of the rounded portion is in the range of 1 to 10 μm.

That is, in the embodiment of the present disclosure, the auxiliary portion 101B of the first opening 101 has the first corner 1015 at a side close to the anode connection hole VH1 of the first sub-pixel. The auxiliary portion 103B of the third opening 103 has a third corner 1035 on a side close to the anode connection hole VH1 of the third subpixel.

For example, the first corner 1015 may be a sharp corner or rounded corner and the third corner 1035 may be a sharp corner or rounded corner.

Referring to fig. 9B and 10B, an orthographic projection of the main body portion 101A of the first opening 101 on the substrate base includes a first circular arc 101C, an orthographic projection of the first corner portion 1015 on the substrate base includes a first edge 1015A and a second edge 1015B, the first edge 1015A and the second edge 1015B are respectively connected with the first circular arc 101C and tangent to the first circular arc 101C at the connection point, and an angle θ 1 formed between the first edge 1015A and the second edge 1015B is between 10 ° and 170 °, for example, 10 ° to 90 °, about 60 °, and the like.

An orthographic projection of a main portion 103A of the third opening 103 on the substrate base includes a third circular arc 103C, an orthographic projection of the third portion 1035 on the substrate base includes a first side 1035A and a second side 1035B, the first side 1035A of the third portion and the second side 1035B of the third portion are respectively connected with the third circular arc 103C and tangent to the third circular arc 103C at the connection point, and an angle θ 2 formed between the first side 1035A of the third portion and the second side 1035B of the third portion is between 10 ° -170 °, for example, 10 ° -90 °, about 60 °, and the like.

Referring to fig. 4, 7 to 10A, a line connecting the first center 1011 and the fourth center 1022 is substantially parallel to the second direction Y; and/or a line connecting the second center 1012 and the third center 1021 is substantially parallel to the second direction Y.

For example, referring to fig. 9A, 10A, 13, and 14, the outline of the orthographic projection pattern of at least one of the first aperture 101 of the first sub-pixel SP1 and the second aperture 102 of the second sub-pixel SP2 on the substrate includes a circular arc, and the orthographic projection pattern of at least one of the first aperture 101 of the first sub-pixel SP1 and the second aperture 102 of the second sub-pixel SP2 on the substrate is axisymmetric in one of the first direction X and the second direction Y and is non-axisymmetric in the other of the first direction X and the second direction Y. For example, in fig. 9A, the orthographic projection pattern of the first opening 101 of the first sub-pixel SP1 on the substrate is axisymmetric in the second direction Y and non-axisymmetric in the first direction X.

For example, the outline of the orthographic projection of at least one of the first opening 101 of the first sub-pixel SP1 and the second opening 102 of the second sub-pixel SP2 on the substrate includes a circular arc portion and a non-circular arc portion, the circular arc portions having the same center, and the total length of the non-circular arc portions being smaller than the total length of the circular arc portions. For example, in fig. 10A, the outline of the orthographic projection of the first opening 101 of the first subpixel SP1 on the substrate includes a circular arc portion 101C and a non-circular arc portion 101SC, the circular arc portion 101C having the same center 1013, and the total length of the non-circular arc portion 101SC is smaller than the total length of the circular arc portion 101C. For example, the ratio of the total length of the non-circular arc portion 101SC to the total length of the circular arc portion 101C is in the range of 1 to 3 or 1 to 4.

For example, referring to fig. 9B and 10B, the first opening 101 has a first profile having a first boundary portion (e.g., a profile of a first corner 1015), a distance CP1 between the first boundary portion 1015 and a first center 1013 of the body portion of the first opening is greater than a distance CP2 between other portions of the first profile and the first center 1013 of the body portion of the first opening, and a distance CP3 between the first boundary portion and a center of the anode connection hole VH1 of the first sub-pixel where the first opening is located is less than a distance CP4 between other portions of the first profile and a center of the anode connection hole 1 of the first sub-pixel where the first opening is located.

For example, in the embodiment shown in fig. 9B, the first opening 101 has a drop-shaped shape, and the first boundary portion may include a portion between two end points tangent to the circular arc portion 101C in the boundary of the first contour of the first opening, or the first boundary portion may be represented by the non-circular arc portion 101 SC.

The third opening 103 has a third contour having a third boundary portion (e.g., a contour of a third corner 1035), a distance CP5 between the third boundary portion 1035 and a third center 1033 of the main body portion of the third opening is greater than a distance CP6 between other portions of the third contour and the third center 1033 of the main body portion of the third opening, and a distance CP7 between the third boundary portion and a center of the anode connection hole VH1 of the third sub-pixel where the third opening is located is less than a distance CP8 between other portions of the third contour and a center of the anode connection hole VH1 of the third sub-pixel where the third opening is located.

Referring to fig. 11, in one of the first repeating units P1, the orthographic projection pattern of the third openings 103 of the four third subpixels SP3 on the substrate base 1 has a fifth center 1031, a sixth center 1032, a seventh center 1033, and an eighth center 1034, respectively, the fifth center 1031, the sixth center 1032, the seventh center 1033, and the eighth center 1034 are sequentially connected to form a second quadrangle S2, and the side lengths of at least two sides in the second quadrangle S2 are not equal to each other, for example, the ratio of the side lengths of at least two sides in the second quadrangle S2 is in the range of 0.8-1.2. For example, the second quadrilateral S2 includes four sides SL21, SL22, SL23, SL24, a side SL21 connecting the fifth center 1031 and the sixth center 1032, a side SL22 connecting the sixth center 1032 and the seventh center 1033, a side SL23 connecting the seventh center 1033 and the eighth center 1034, and a side SL24 connecting the eighth center 1034 and the fifth center 1031.

For example, side SL22 may have a side length equal to side SL24, side SL21 may have a side length greater than side SL22 or side SL24, and side SL23 may have a side length less than side SL22 or side SL 24.

For example, the second quadrangle S2 is an isosceles trapezoid. In an embodiment of the present disclosure, the first quadrangle S1 and/or the second quadrangle S2 may be selected from at least one of a parallelogram or an isosceles trapezoid.

In an embodiment of the present disclosure, an orthographic pattern of at least one first opening 101 on said substrate base plate 1 has a first axis of symmetry 101S, said first axis of symmetry 101S being substantially parallel to the second direction Y.

Referring to fig. 11, an orthographic pattern of the at least one third opening 103 on the substrate base plate 1 has a third axis of symmetry 103S, and the third axis of symmetry 103S of the at least one third opening is offset by a prescribed offset angle with respect to the second direction Y.

For two third openings 103 adjacent to each other in the first direction X in one of the first repeating units P1, the deflection direction of the third symmetry axis 103S of one third opening 103 with respect to the second direction Y is opposite to the deflection direction of the third symmetry axis 103S of the other third opening 103 with respect to the second direction Y. For example, in the embodiment shown in fig. 11, of the two third openings 103 located in the second row, the third axis of symmetry 103S of the third opening 103 located on the left side is offset to the left with respect to the second direction Y, and the third axis of symmetry 103S of the third opening 103 located on the right side is offset to the right with respect to the second direction Y.

For two third openings 103 adjacent to each other in the second direction Y in one of the first repeating units P1, the deflection direction of the third symmetry axis 103S of one third opening 103 with respect to the second direction Y is opposite to the deflection direction of the third symmetry axis 103S of the other third opening 103 with respect to the second direction Y. For example, in the embodiment shown in fig. 11, of the two third openings 103 located in the second row, the third symmetry axis 103S of the upper third opening 103 is offset to the left with respect to the second direction Y, and the third symmetry axis 103S of the lower third opening 103 is offset to the right with respect to the second direction Y.

For two third openings 103 within one said first repeating unit P1 that are adjacent along the first direction X, the angle of deflection of the third axis of symmetry 103S of one third opening 103 with respect to the second direction Y is substantially equal to the angle of deflection of the third axis of symmetry 103S of another third opening 103 with respect to the second direction Y. For example, the ratio between the angle of deflection of the third axis of symmetry 103S of one third opening 103 with respect to the second direction Y and the angle of deflection of the third axis of symmetry 103S of another third opening 103 with respect to the second direction Y ranges from 0.8 to 1.2.

For two third openings 103 within one said first repeating unit P1 that are adjacent along the second direction Y, the angle of deflection of the third axis of symmetry 103S of one third opening 103 with respect to the second direction Y is substantially equal to the angle of deflection of the third axis of symmetry 103S of another third opening 103 with respect to the second direction Y. For example, the ratio between the angle of deflection of the third axis of symmetry 103S of one third opening 103 with respect to the second direction Y and the angle of deflection of the third axis of symmetry 103S of another third opening 103 with respect to the second direction Y ranges from 0.8 to 1.2.

For example, the predetermined deflection angle is in the range of 1 ° to 70 °. For example, the above-mentioned deflection angle may be in the range of 30 ° to 60 °, for example, about 45 °.

Referring to fig. 12, the first opening 101 of at least one first sub-pixel includes a main portion 101A and an auxiliary portion 101B, an orthographic projection of the main portion 101A of the first opening on the substrate base 1 is a major circle, and an orthographic projection of the auxiliary portion 101B of the first opening on the substrate base 1 protrudes in the second direction Y with respect to the major circle.

It should be noted that, in this document, the expression "major circle" corresponds to a major arc, and a major circle may be understood as a pattern defined by a major arc and a chord.

It should be noted that, in the embodiments of the present disclosure, a connecting line between two end points of the connecting arc may be a straight line, or may be a curved line, and may be concave or convex with respect to the main body portion of the opening.

The third opening 103 of the at least one third sub-pixel includes a main portion 103A and an auxiliary portion 103B, an orthogonal projection of the main portion 103A of the third opening on the substrate base plate 1 is a perfect circle, and an orthogonal projection of the auxiliary portion 103B of the third opening on the substrate base plate 1 protrudes in the second direction Y with respect to the perfect circle.

That is, with respect to the embodiment shown in fig. 11, in the embodiment shown in fig. 12, the circle of the body portion of the first opening 101 is cut in part, and the circle of the body portion of the third opening 103 is cut in part.

Referring to fig. 13 and 14, the orthographic projection of the second opening 102 of at least one second sub-pixel on the substrate 1 is a perfect circle. That is, in the embodiment shown in fig. 13 and 14, the circle of the second opening 102 is cut out in part, relative to the embodiment shown in fig. 8.

Referring to fig. 13, the outline of the orthographic projection of the second opening 102 of at least one second sub-pixel on the substrate 1 includes a second major arc 1021 and a second chord 1022, and the second chord 1022 and the anode connection hole VH1 of the second sub-pixel where the second opening is located are respectively located on opposite sides of the second major arc 1021.

Referring to fig. 14, the outline of the orthographic projection of the second opening 102 of at least one second sub-pixel on the substrate 1 includes a second major arc 1021 and a second chord 1022, and the second chord 1022 and the anode connection hole VH1 of the second sub-pixel where the second opening is located are located on the same side of the second major arc 1021.

Referring to fig. 15, an orthogonal projection of the second opening 102 of the second sub-pixel on the substrate base 1 and an orthogonal projection of the anode connection hole VH1 of the second sub-pixel on the substrate base 1 are both located within an orthogonal projection of the anode structure 41A of the second sub-pixel on the substrate base 1; and the orthographic projection of the anode structure 41A of the second sub-pixel on the base substrate 1 is substantially circular.

Referring to fig. 16, the outline of the orthographic projection of the second opening 102 of at least one second sub-pixel on the substrate base plate 1 comprises a second major arc 1021 and a second outline edge 1023, the second outline edge comprising a plurality of sub-edges at least partially surrounding the orthographic projection of the anode connection hole VH1 of the second sub-pixel on the substrate base plate 1.

Referring to fig. 17, similar to the embodiment shown in fig. 4, for the first repeating unit P1 located in the first display region AA1, the orthographic projection pattern of the first aperture 101 of the first subpixel SP1 on the substrate 1 is in a drop shape, the orthographic projection pattern of the second aperture 102 of the second subpixel SP2 on the substrate 1 is in a circle shape, and the orthographic projection pattern of the third aperture 103 of the third subpixel SP3 on the substrate 1 is in a circle shape.

For example, an orthogonal projection of the fifth opening 202 of the fifth sub-pixel on the base substrate 1 has a diamond shape. For the second and fifth sub-pixels SP2 and SP5 located in the same row, the center of the second aperture 102 of the second sub-pixel SP2 and the center of the fifth aperture 202 of the fifth sub-pixel SP5 are located on a straight line parallel to the first direction X. For the second and fifth sub-pixels SP2 and SP5 located in the same column, the center of the second aperture 102 of the second sub-pixel SP2 and the center of the fifth aperture 202 of the fifth sub-pixel SP5 are located on a straight line parallel to the second direction Y.

In the embodiment shown in fig. 17, each of the second opening 102 of the second sub-pixel and the third opening 103 of the third sub-pixel has a circular orthographic projection on the substrate.

The first opening 101 of the first sub-pixel comprises a main body part and a 101A auxiliary part 101B, an orthographic projection of the main body part 101A of the first opening on the substrate is circular, and an orthographic projection of the auxiliary part 101B of the first opening on the substrate protrudes towards an orthographic projection of the anode connecting hole VH1 of the first sub-pixel where the first opening is located on the substrate relative to the circular shape of the main body part 101A of the first opening.

The orthographic projection pattern of the first opening 101 of the first sub-pixel on the substrate base plate has a first symmetry axis 101S, and the first symmetry axis 101S is substantially parallel to the second direction Y.

Referring to fig. 18, only the orthographic projection of the third opening 103 of the third sub-pixel SP3 on the substrate base 1 has a droplet-shaped shape, and the orthographic projections of the first opening 101 and the second opening 102 on the substrate base 1 have a circular shape. Similar to fig. 11, the third aperture 103 of the third subpixel SP3 is deflected by a prescribed deflection angle with respect to the second direction Y.

Referring to fig. 19 and 20, the outline of the orthographic projection of the second opening 102 on the substrate base plate 1 includes a plurality of arc segments, for example, a first arc segment KC1, a second arc segment KC2, and a third arc segment KC 3. The second arc segment KC2 is located between the first arc segment KC1 and the third arc segment KC3, and connects the first arc segment KC1 and the third arc segment KC 3. The first and third arc segments KC1 and KC3 may have substantially equal radii of curvature, and the second arc segment KC2 may have a different radius of curvature from the first and third arc segments KC1 and KC 3. The first arc segment KC1 and the third arc segment KC3 are spaced apart from each other and are not directly connected.

As shown in fig. 19, the first arc segment KC1 and the third arc segment KC3 are located on the side of the second arc segment KC2 away from the anode connection hole VH 1.

As shown in fig. 20, the first arc segment KC1 and the third arc segment KC3 are located at a side of the second arc segment KC2 close to the anode connection hole VH 1.

Referring to fig. 21, the outline of the orthographic projection of the second opening 102 on the substrate base plate 1 includes a plurality of arc segments, for example, a first arc segment KC1, a second arc segment KC2, and a third arc segment KC 3. The second arc segment KC2 is located between the first arc segment KC1 and the third arc segment KC3, and connects the first arc segment KC1 and the third arc segment KC 3. The first arc segment KC1 and the third arc segment KC3 are directly connected. The first and third arc segments KC1 and KC3 may have substantially equal radii of curvature, and the second arc segment KC2 may have a different radius of curvature from the first and third arc segments KC1 and KC 3.

In the embodiment shown in fig. 19 to 21, by designing the shape of the second opening 102, the spacing distance between the second opening 102 and the adjacent third opening 103 can be increased, so as to facilitate the placement of the spacer.

In the embodiment of the present disclosure, at least one of the first, second, and third subpixels SP1, SP2, and SP3 includes a first type subpixel 1001, a second type subpixel 1002, a third type subpixel 1003, and a fourth type subpixel 1004, and in the different types of subpixels, the protruding direction of the protruding vertex of the droplet-shaped opening with respect to the circular main body portion is different. For example, the orientation of the protruding vertices of the openings in different types of sub-pixels is different.

For example, the shape of each type of sub-pixel is the same, or the area is the same. For example, the shape and area of each type of sub-pixel is the same. For example, the number of different types of sub-pixels is approximately the same. For example, the number ratio of any two types of sub-pixels in the first type sub-pixel, the second type sub-pixel, the third type sub-pixel and the fourth type sub-pixel is 0.8-1.2. For example, the number ratio of the first type sub-pixel to the second type sub-pixel is 0.8-1.2, and the number ratio of the third type sub-pixel to the fourth type sub-pixel is 0.8-1.2.

As shown in fig. 22, in the first-type subpixel 1001, the second-type subpixel 1002, the third-type subpixel 1003, and the fourth-type subpixel 1004, the protruding directions of the protruding vertex VP1 of the first opening 101 are a direction D1, a direction D2, a direction D3, and a direction D4, respectively. For example, in the first opening 101 of the first type subpixel 1001, the protrusion vertex VP1 protrudes in the direction D1; in the first opening 101 of the second type sub-pixel 1002, the protrusion vertex VP1 protrudes toward the direction D2; in the first opening 101 of the third type subpixel 1003, the protrusion vertex VP1 protrudes toward the direction D3; in the first opening 101 of the fourth type sub-pixel 1004, the protrusion vertex VP1 protrudes toward the direction D4.

As shown in FIG. 22, direction D1 is opposite direction D2, and direction D3 is opposite direction D4.

For example, in fig. 22, in one of the first repeating units P1, at least two first corners 1015 are oriented differently. For example, one first corner 1015 faces left and the other corner 1015 faces downward. That is, one corner faces the first direction X, and the other corner faces the second direction Y. For another example, in one first repeating unit P1, at least two third corners 1035 may have different orientations.

In the display substrate provided by the embodiment of the disclosure, four different types of sub-pixels are arranged, so that the problem of color cast when the display substrate displays is favorably solved.

In addition, in a general display substrate, the shape of four vertex angles included by the opening of each sub-pixel with different colors is the same, and compared with the display substrate, the display substrate provided by the embodiment of the disclosure is beneficial to reducing granular sensation generated when the display substrate displays by arranging the four sub-pixels with different types.

In the above-described embodiment, the orthographic projection of the opening of at least one of the first subpixel, the second subpixel and the third subpixel on the substrate is in a droplet shape, however, the embodiment of the present disclosure is not limited thereto, and the orthographic projection of the opening of at least one of the first subpixel, the second subpixel and the third subpixel on the substrate may have a shape of a curve, a wavy line, a jagged line, a small notch, a small protrusion, or the like.

In the embodiment of the present disclosure, for example, the outline of the orthographic projection pattern of the first opening 101 of the first sub-pixel on the substrate includes an arc portion 101C and a non-arc portion 101SC, first distances at respective positions along the radial direction of the boundary of the arc portion 101C of the first opening to the anode structure 41A of the first sub-pixel are substantially equal, and a second distance along the radial direction of the boundary of the non-arc portion 101SC of the first opening to the anode structure 41A of the first sub-pixel may not be equal to the first distance.

For example, the outline of the orthographic projection pattern of the second opening 102 of the second sub-pixel on the substrate includes an arc portion 102C and a non-arc portion 102SC, third distances at respective positions along the radial direction of the boundary of the arc portion 102C of the second opening to the anode structure 41A of the second sub-pixel are substantially equal, and a fourth distance along the radial direction of the boundary of the non-arc portion 102SC of the second opening to the anode structure 41A of the second sub-pixel is not equal to the third distance.

For example, the outline of the orthographic projection pattern of the third opening 103 of the third sub-pixel on the substrate includes a circular arc portion 103C and a non-circular arc portion 103SC, fifth distances at respective positions along the radial direction of the boundary of the circular arc portion 103C of the third opening to the anode structure 41A of the third sub-pixel are substantially equal, and a sixth distance along the radial direction of the boundary of the non-circular arc portion 103SC of the third opening to the anode structure 41A of the third sub-pixel is not equal to the fifth distance.

For example, the second distance is greater than the first distance, the fourth distance is greater than the third distance, and the sixth distance is greater than the fifth distance.

For another example, seventh distances at respective positions along the radial direction of the boundary between the circular arc portion 101C of the first opening and the light emitting layer 41B of the first sub-pixel are substantially equal, and an eighth distance along the radial direction of the boundary between the non-circular arc portion 101SC of the first opening and the light emitting layer 41B of the first sub-pixel is not equal to the seventh distance.

Ninth distances at respective positions along the radial direction thereof from the circular arc portion 102C of the second opening to the light-emitting layer 41B of the second sub-pixel are substantially equal, and a tenth distance along the radial direction thereof from the non-circular arc portion 102SC of the second opening to the light-emitting layer 41B of the second sub-pixel is not equal to the ninth distance.

Eleventh distances at respective positions along the radial direction of the boundary of the circular arc portion 103C of the third opening to the light-emitting layer 41B of the third sub-pixel are substantially equal, and a twelfth distance along the radial direction of the boundary of the non-circular arc portion 103SC of the third opening to the light-emitting layer 41B of the third sub-pixel is not equal to the eleventh distance.

Fig. 23 is a schematic sectional view taken along the line BB' in fig. 4. Referring to fig. 23, the display substrate 10 includes an insulating layer 31, a first connection line 110, a planarization layer 32, and a first light emitting device 41, which are sequentially stacked on a base substrate 1. The first light emitting device 41 includes an anode structure 41A, a cathode structure 41C, and a light emitting layer 41B between the anode structure 41A and the cathode structure 41C. The anode structure 41A of the first light emitting device 41 is electrically connected to the first connection line 110 through an anode connection hole VH1 penetrating the planarization layer 32.

Note that, herein, for convenience of description, the light emitting device located in the first display area AA1 is referred to as a first light emitting device, and accordingly, a circuit for driving light emission thereof is referred to as a first pixel driving circuit; the light emitting device in the second display area AA2 is referred to as a second light emitting device, and accordingly, a circuit for driving light emission thereof is referred to as a second pixel driving circuit.

For example, the first light emitting devices 41 are electrically connected to the first pixel driving circuits in a one-to-one correspondence, and the plurality of first pixel driving circuits are used to drive the plurality of first light emitting devices 41 in a one-to-one correspondence. That is, one first pixel driving circuit drives one corresponding first light emitting device 41, and different first pixel driving circuits drive different first light emitting devices 41.

In the embodiment of the present disclosure, the pixel driving circuit for driving the respective sub-pixels in the first display area AA1 is not located in the first display area AA1, but is disposed in the second display area AA 2. For example, the anode structure of the first light emitting device 41 is electrically connected to a first end of a first connection line located at the ITO layer through a via hole. The orthographic projection of the first light emitting device 41 on the substrate base 1 is spaced from the orthographic projection of the first pixel driving circuit on the substrate base 1. Accordingly, the coverage area of the metal or opaque pattern of the first display area AA1 is reduced, and the light transmittance of the first display area AA1 is improved, thereby facilitating the realization of the light transmittance of the first display area AA1 being greater than that of the second display area AA 2.

For example, the display substrate further includes a plurality of first connection lines disposed on the base substrate 1 and located at the ITO layer. The first connection line includes a first end located at the first display area 11 and a second end located at the second display area AA2, that is, the first connection line extends from the first display area 11 to the second display area AA 2.

A first end of the first connection line is electrically connected to the anode structure of the first light emitting device 41 of one sub-pixel, a second end of the first connection line is electrically connected to the first pixel driving circuit, and the first connection line is configured to transmit an electrical signal provided by the first pixel driving circuit to the anode structure of the first light emitting device 41, thereby driving the first light emitting device 41 to emit light.

The second display area AA2 further includes at least one (e.g., a plurality of) second light emitting devices and at least one (e.g., a plurality of) second pixel driving circuits. The second light emitting devices are electrically connected with the second pixel driving circuits in a one-to-one correspondence manner, and the second pixel driving circuits are used for driving the second light emitting devices to emit light.

In the embodiment of the present disclosure, the pixel driving circuits for driving the respective sub-pixels in the second display area AA2 are located in the second display area AA2, for example, an orthogonal projection of the second light emitting device on the substrate base 1 at least partially overlaps an orthogonal projection of the second pixel driving circuit on the substrate base 1. In this way, the electrical connection of each light emitting device located in the second display area AA2 to the corresponding second pixel driving circuit is facilitated.

In an embodiment of the present disclosure, the first pixel driving circuits and the second pixel driving circuits may be distributed in an array along the first direction X and the second direction Y.

The pixel driving circuit may include a semiconductor layer, a first insulating layer, a first gate layer, a second insulating layer, a second gate layer, an interlayer insulating layer, a source drain metal layer, and the like. In some embodiments, the pixel driving circuit may include 7 thin film transistors (e.g., a driving transistor, a data writing transistor, a compensation transistor, a reset transistor, a light emission control transistor, etc.), and a storage capacitor, wherein at least one of the thin film transistors is directly connected to the light emitting device, e.g., the light emission control transistor.

It should be noted that, unless otherwise stated, a "via" or a "connection hole" is used to electrically connect components located in different conductive layers, and in the embodiments of the present disclosure, the "via" or the "connection hole" may also take other alternative forms, for example, a "groove" that may be used to electrically connect components located in different conductive layers may be used instead of the via or the connection hole.

For example, the anode structure 41A may include a transparent conductive material such as ITO, and the specific material of the anode structure 41A is not limited by the embodiment of the disclosure. For example, the cathode structure 41C may be a structure formed on the entire surface of the display substrate 10 (e.g., at least entirely covering the entire display region), and the cathode structure 41C may include, for example, a metal material such as lithium (Li), aluminum (Al), magnesium (Mg), silver (Ag), or the like. For example, since the cathode structure 41C can be formed as a thin layer, the cathode structure 41C has good light transmittance.

Fig. 24 is a schematic cross-sectional view taken along line CC' of fig. 3A. With combined reference to fig. 23-24, the display substrate 10 may further include a pixel defining layer 8. For example, the pixel defining layer 8 may have a plurality of openings. For example, some openings are located in the first display area AA1, each of which exposes a portion of the anode structure of the first light emitting device 41. Some openings are located in the second display area AA2, each of which exposes a portion of the anode structure of the second light emitting device 42.

The anode structure of the second light emitting device 42 includes an anode body 421 and an anode connection part 422, and a thickness of at least a portion of the anode connection part 422 is different from a thickness of the anode body 421.

Since the anode connection part 422 of the second light emitting device 42 is connected to a source or drain of an underlying thin film transistor (which will be described in more detail below) at the via hole VH3, at least a portion of the anode connection part 422 has a thickness greater than that of the anode body 421.

Fig. 25 is an equivalent circuit diagram of one pixel driving circuit of a display substrate according to some exemplary embodiments of the present disclosure.

In the following, the structure of the pixel driving circuit is described in detail by taking a 7T1C pixel driving circuit as an example, but the embodiments of the present disclosure are not limited to the 7T1C pixel driving circuit, and other known pixel driving circuit structures can be applied to the embodiments of the present disclosure without conflict.

As shown in fig. 24 and 25, the pixel driving circuit may include: a plurality of thin film transistors, and a storage capacitor Cst. The pixel driving circuit is used to drive an organic light emitting diode (i.e., OLED). The plurality of thin film transistors include a first transistor T1, a second transistor T2, a third transistor T3, a fourth transistor T4, a fifth transistor T5, a sixth transistor T6, and a seventh transistor T7. Each transistor includes a gate, a source, and a drain.

The display substrate may further include a plurality of signal lines, for example, the plurality of signal lines include: a scanning signal line 61 for transmitting a scanning signal Sn, a RESET signal line 62 for transmitting a RESET control signal RESET (i.e., a scanning signal of a previous row), a light emission control line 63 for transmitting a light emission control signal En, a data line 64 for transmitting a data signal Dm, a driving voltage line 65 for transmitting a driving voltage VDD, an initialization voltage line 66 for transmitting an initialization voltage Vint, and a power line 67 for transmitting a VSS voltage.

The gate G1 of the first transistor T1 is electrically connected to one end Cst1 of the storage capacitor Cst, the source S1 of the first transistor T1 is electrically connected to the driving voltage line 65 via the fifth transistor T5, and the drain D1 of the first transistor T1 is electrically connected to the anode of the OLED via the sixth transistor T6. The first transistor T1 receives the data signal Dm according to the switching operation of the second transistor T2 to supply the driving current Id to the OLED.

The gate G2 of the second transistor T2 is electrically connected to the scan signal line 61, the source S2 of the second transistor T2 is electrically connected to the data line 64, and the drain D2 of the second transistor T2 is electrically connected to the driving voltage line 65 via the fifth transistor T5, and is also electrically connected to the source S1 of the first transistor T1. The second transistor T2 is turned on according to the scan signal Sn transmitted through the scan signal line 61 to perform a switching operation to transmit the data signal Dm transmitted to the data line 64 to the source S1 of the first transistor T1.

The gate G3 of the third transistor T3 is electrically connected to the scan signal line 61, and the source S3 of the third transistor T3 is electrically connected to the anode of the OLED via the sixth transistor T6, and is also electrically connected to the drain D1 of the first transistor T1. And the drain D3 of the third transistor T3 is electrically connected to one end (i.e., the first capacitive electrode) Cst1 of the storage capacitor Cst, the drain D4 of the fourth transistor T4, and the gate G1 of the first transistor T1. The third transistor T3 is turned on according to the scan signal Sn transmitted through the scan signal line 61 to connect the gate G1 and the drain D1 of the first transistor T1 to each other, thereby performing diode connection of the first transistor T1.

The gate G4 of the fourth transistor T4 is electrically connected to the reset control signal line 62, and the source S4 of the fourth transistor T4 is electrically connected to the initialization voltage line 66. And the drain D4 of the fourth transistor T4 is electrically connected to one terminal Cst1 of the storage capacitor Cst, the drain D3 of the third transistor T3, and the gate G1 of the first transistor T1. The fourth transistor T4 is turned on according to the reset control signal Sn-1 transmitted through the reset control signal line 62 to transmit the initialization voltage Vint to the gate G1 of the first transistor T1, thereby performing an initialization operation to initialize the voltage of the gate G1 of the first transistor T1.

The gate G5 of the fifth transistor T5 is electrically connected to the light emission control line 63, and the source S5 of the fifth transistor T5 is electrically connected to the driving voltage line 65. And a drain D5 of the fifth transistor T5 is electrically connected to the source S1 of the first transistor T1 and the drain D2 of the second transistor T2.

The gate G6 of the sixth transistor T6 is electrically connected to the light emission control line 63, and the source S6 of the sixth transistor T6 is electrically connected to the drain D1 of the first transistor T1 and to the source S3 of the third transistor T3. And a drain D6 of the sixth transistor T6 is electrically connected to the anode of the OLED. The fifth transistor T5 and the sixth transistor T6 are concurrently (e.g., simultaneously) turned on according to the light emission control signal En transmitted through the light emission control line 63 to transmit the driving voltage ELVDD to the OLED, thereby allowing the driving current Id to flow into the OLED.

The seventh transistor T7 includes: a gate G7 connected to the reset control signal line 62; a source S7 connected to the drain D6 of the sixth transistor T6 and the anode of the OLED; and a drain D7 connected to the initialization voltage line 66. The seventh transistor T7 transmits the reset control signal Sn-1 from the reset control signal line 62 to the gate G7.

The other end Cst2 of the storage capacitor Cst is electrically connected to the driving voltage line 65, and the cathode of the OLED is electrically connected to the power line 67 to receive the common voltage ELVSS. Accordingly, the OLED receives the driving current Id from the first transistor T1 to emit light, thereby displaying an image.

Note that, in fig. 25, each of the thin film transistors T1, T2, T3, T4, T5, T6, and T7 is a p-channel field effect transistor, but the embodiment of the present disclosure is not limited thereto, and at least some of the thin film transistors T1, T2, T3, T4, T5, T6, and T7 may be n-channel field effect transistors.

In operation, during the initialization phase, the reset control signal Sn-1 having a low level is supplied through the reset control signal line 62. Subsequently, the initializing thin film transistor T4 is turned on based on the low level of the reset control signal Sn-1, and the initializing voltage Vint from the initializing voltage line 66 is transferred to the gate electrode G1 of the driving thin film transistor T1 through the initializing thin film transistor T4. Accordingly, the driving thin film transistor T1 is initialized due to the initialization voltage Vint.

During the data programming phase, the scan signal Sn having a low level is supplied through the scan signal line 61. Subsequently, the switching thin film transistor T2 and the compensating thin film transistor T3 are turned on based on the low level of the scan signal Sn. Accordingly, the driving thin film transistor T1 is placed in a diode-connected state and biased in a positive direction by the turned-on compensation thin film transistor T3.

Subsequently, a compensation voltage Dm + Vth (e.g., Vth is a negative value) obtained by subtracting the threshold voltage Vth of the driving thin film transistor T1 from the data signal Dm supplied via the data line 64 is applied to the gate electrode G1 of the driving thin film transistor T1. Subsequently, the driving voltage ELVDD and the compensation voltage Dm + Vth are applied to both terminals of the storage capacitor Cst, so that charges corresponding to a voltage difference between the respective terminals are stored in the storage capacitor Cst.

During the light-emitting phase, the light-emission control signal En from the light-emission control line 63 changes from a high level to a low level. Subsequently, during the light emitting period, the first and second light emission controlling thin film transistors T5 and T6 are turned on based on the low level of the light emission control signal En.

Subsequently, a driving current is generated based on a difference between the voltage of the gate electrode G1 of the driving thin film transistor T1 and the driving voltage ELVDD. The driving current Id corresponding to the difference between the driving current and the bypass current is supplied to the OLED through the second light emission controlling thin film transistor T6.

During the light emitting phase, the gate-source voltage of the driving thin film transistor T1 is maintained at (Dm + Vth) -ELVDD due to the storage capacitor Cst based on the current-voltage relationship of the driving thin film transistor T1. Driving currents Id and (Dm-ELVDD) ² And (4) in proportion. Therefore, the driving current Id can be prevented from being affected by the variation of the threshold voltage Vth of the driving thin film transistor T1.

For example, in various embodiments of the present disclosure, the substrate 1 may be a glass substrate, a quartz substrate, a metal substrate, a resin-based substrate, or the like, and may be a rigid substrate or a flexible substrate, which is not limited in this respect.

Referring back to fig. 1 and 2, at least some embodiments of the present disclosure also provide a display device. The display device may comprise a display substrate and a sensor 2 (e.g. a camera) as described above.

As described above, the display substrate has the first display area AA1 and the second display area AA2, and the pixel density of the first display area AA1 is less than that of the second display area AA 2. The sensor 2 is located on the side of the substrate 1 facing away from the pixel array, and the light-sensitive surface of the sensor 2 faces the display substrate. The orthographic projection of the sensor 2 on the substrate base plate 1 and the orthographic projection of the first display area AA1 on the substrate base plate 1 overlap each other, for example, within the orthographic projection of the first display area AA1 on the substrate base plate 1, whereby imaging can be performed with light passing through the first display area AA1, thereby implementing an under-screen camera function.

The sensor 2 may take a structure known in the art, including, for example, a Complementary Metal Oxide Semiconductor (CMOS) image sensor or a Charge Coupled Device (CCD) image sensor. The sensor 2 may be electrically connected to an image processor. In addition to the image sensor, in order to achieve a better imaging effect, the imaging module including the image sensor may further include, for example, a lens block, and the lens block and the image sensor may be arranged in order along an optical axis of the lens block in a direction perpendicular to the substrate base plate 1.

The display means may comprise any device or product having a display function. For example, the display device may be a smart phone, a mobile phone, an e-book reader, a desktop computer (PC), a laptop PC, a netbook PC, a Personal Digital Assistant (PDA), a Portable Multimedia Player (PMP), a digital audio player, a mobile medical device, a camera, a wearable device (e.g., a head-mounted device, an electronic apparel, an electronic bracelet, an electronic necklace, an electronic accessory, an electronic tattoo, or a smart watch), a television, or the like.

Although a few embodiments of the present general inventive concept have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the claims and their equivalents.

Claims (53)

1. A display substrate comprising a first display region, wherein the display substrate comprises:

a substrate base plate;

a first pixel structure located in the first display region, the first pixel structure including two first sub-pixels and two second sub-pixels; and

a pixel defining layer disposed on the substrate base plate, the pixel defining layer including a first opening and a second opening in the first display region,

wherein the first sub-pixel includes a first opening and the second sub-pixel includes a second opening;

in the first pixel structure, orthographic projection graphs of first openings of two first sub-pixels on the substrate respectively have a first center and a third center, orthographic projection graphs of second openings of two second sub-pixels on the substrate respectively have a second center and a fourth center, the first center, the second center, the third center and the fourth center are sequentially connected to form a first quadrangle, the side lengths of at least two sides in the first quadrangle are not equal to each other, and the ratio of the side lengths of at least two sides ranges from 0.8 to 1.2.

2. The display substrate of claim 1, wherein the first pixel structure further comprises third subpixels, at least one third subpixel being located inside the first quadrilateral.

3. The display substrate of claim 1, wherein the first pixel structure further comprises a plurality of third sub-pixels, the third sub-pixels being arranged in an array along a first direction and a second direction;

the pixel defining layer further comprises a plurality of third openings in the first display region, the third sub-pixels comprising third openings;

the third opening of at least one third sub-pixel is positioned inside the first quadrangle, the projection of the third opening of the third sub-pixel along the first direction is not overlapped with the projection of each of the first opening of the first sub-pixel and the second opening of the second sub-pixel along the first direction, and the projection of the third opening of the third sub-pixel along the second direction is not overlapped with the projection of each of the first opening of the first sub-pixel and the second opening of the second sub-pixel along the second direction.

4. The display substrate according to claim 1, wherein, within the first pixel structure, the first sub-pixel and the second sub-pixel are adjacent in both the first direction and the second direction, and a distance in the first direction between a center of the first opening of the first sub-pixel and a center of the second opening of the second sub-pixel adjacent in the first direction is not equal to a distance in the second direction between a center of the first opening of the first sub-pixel and a center of the second opening of the second sub-pixel adjacent in the second direction.

5. The display substrate according to claim 1, wherein, within the first pixel structure, the first sub-pixel and the second sub-pixel are adjacent in both the first direction and the second direction, and a shortest distance in the first direction between a boundary of the first opening of the first sub-pixel and a boundary of the second opening of the second sub-pixel adjacent in the first direction is not equal to a shortest distance in the second direction between a boundary of the first opening of the first sub-pixel and a boundary of the second opening of the second sub-pixel adjacent in the second direction.

6. The display substrate of claim 1, wherein the outline of the orthographic projection of the at least one of the first opening of the first sub-pixel and the second opening of the second sub-pixel on the substrate comprises a circular arc, and the orthographic projection of the at least one of the first opening of the first sub-pixel and the second opening of the second sub-pixel on the substrate is axisymmetric in one of the first direction and the second direction and non-axisymmetric in the other of the first direction and the second direction.

7. The display substrate according to claim 1, wherein an outline of an orthographic projection pattern of at least one of the first opening of the first sub-pixel and the second opening of the second sub-pixel on the substrate comprises a circular arc portion and a non-circular arc portion, the circular arc portions having a same center, and a total length of the non-circular arc portions being smaller than a total length of the circular arc portions.

8. The display substrate according to claim 1, wherein the first opening of at least one first sub-pixel comprises a main portion and an auxiliary portion, an orthographic projection of the main portion of the first opening on the substrate is substantially circular, and an orthographic projection of the auxiliary portion of the first opening on the substrate protrudes in a first direction or a second direction with respect to the circular shape.

9. The display substrate of claim 8, wherein an orthographic pattern of a body portion of the first opening on the substrate has a first center; and

for a first opening having a first center, the first center of the first opening is offset from a first center of the body portion of the first opening by a first offset distance in either the first direction or the second direction.

10. The display substrate of claim 9, wherein for a first opening having a third center, the third center of the first opening is offset from a first center of a main body portion of the first opening by a second offset distance in the first direction or the second direction.

11. The display substrate of claim 10, wherein a ratio of the first offset distance to the second offset distance ranges from 0.8 to 1.2.

12. The display substrate of claim 10, wherein at least one of the first offset distance and the second offset distance is 1-5 microns.

13. The display substrate of claim 11, wherein at least one of the first offset distance and the second offset distance is 1-5 microns.

14. The display substrate of claim 9, wherein a line connecting a first center of the first opening and the second center is substantially parallel to the first direction, the line connecting the first center and the second center has a first angle with respect to the first direction, the first angle is greater than or equal to 0 ° and less than or equal to 30 °; and/or the presence of a gas in the gas,

for a first opening with a third center, a connecting line of a first circle center of the first opening and the fourth center is basically parallel to the first direction, a connecting line of the third center and the fourth center forms a second angle relative to the first direction, and the second angle is greater than or equal to 0 degrees and smaller than or equal to 30 degrees.

15. The display substrate of claim 10, wherein a line connecting a first center of the first opening and the second center is substantially parallel to the first direction, the line connecting the first center and the second center has a first angle with respect to the first direction, the first angle is greater than or equal to 0 ° and less than or equal to 30 °; and/or the presence of a gas in the gas,

for a first opening with a third center, a connecting line of a first circle center of the first opening and the fourth center is basically parallel to the first direction, a connecting line of the third center and the fourth center forms a second angle relative to the first direction, and the second angle is greater than or equal to 0 degrees and smaller than or equal to 30 degrees.

16. The display substrate of any of claims 1-6, wherein at least one of the first pixel structures further comprises at least four third subpixels, the pixel defining layer comprising a plurality of third openings located in the first display region, the third subpixels comprising third openings; and

an orthographic projection of at least one of the third openings on the substrate base plate falls within the first quadrangle and has a fifth center, and a spacing distance between the fifth center and the second center in the second direction is not equal to a spacing distance between the fifth center and the third center in the second direction.

17. The display substrate of claim 16, wherein the third opening of at least one third sub-pixel comprises a main portion and an auxiliary portion, an orthographic projection of the main portion of the third opening on the substrate is circular, and an orthographic projection of the auxiliary portion of the third opening on the substrate protrudes in the second direction relative to the circular shape of the main portion of the third opening.

18. The display substrate according to claim 16, wherein, in one of the first pixel structures, the orthographic projection pattern of the third openings of the four third sub-pixels on the substrate respectively has a fifth center, a sixth center, a seventh center and an eighth center, the fifth center, the sixth center, the seventh center and the eighth center are sequentially connected to form a second quadrangle, and the ratio of any two of the side lengths of the four sides of the second quadrangle is in the range of 0.8-1.2.

19. The display substrate of claim 16, wherein the display substrate further comprises:

an anode structure disposed on a side of the pixel defining layer adjacent to the substrate base plate;

a pixel drive circuit disposed between the substrate base plate and the anode structure; and

an anode connection hole through which the anode structure is connected with the pixel driving circuit,

wherein, the orthographic projection of the auxiliary part of the first opening on the substrate base plate is protruded towards the orthographic projection of the anode connecting hole of the first sub-pixel where the first opening is located on the substrate base plate relative to the circle of the main part of the first opening; and/or the orthographic projection of the auxiliary part of the third opening on the substrate base plate is protruded towards the orthographic projection of the anode connecting hole of the third sub-pixel where the third opening is located on the substrate base plate relative to the circle of the main part of the third opening.

20. The display substrate of claim 19, wherein the auxiliary portion of the first opening has a first corner portion at a side close to the anode connection hole of the first sub-pixel; and/or the auxiliary portion of the third opening has a third corner portion at a side close to the anode connection hole of the third sub-pixel.

21. The display substrate of claim 20, wherein an orthographic projection of a body portion of the first opening on the substrate comprises a first circular arc, an orthographic projection of the first corner portion on the substrate comprises a first edge and a second edge, the first edge and the second edge are respectively connected with the first circular arc and tangent to the first circular arc at a connection point, and an angle formed between the first edge and the second edge is between 10 ° and 170 °; and/or the presence of a gas in the gas,

an orthographic projection of a main body part of the third opening on the substrate base plate comprises a third circular arc, an orthographic projection of the third corner part on the substrate base plate comprises a first edge and a second edge, the first edge of the third corner part and the second edge of the third corner part are respectively connected with the third circular arc and tangent to the third circular arc at a connection point, and an angle formed between the first edge of the third corner part and the second edge of the third corner part is 10-170 degrees.

22. The display substrate according to claim 21, wherein the first opening has a first contour having a first boundary portion, a distance between the first boundary portion and a first center of the main body portion of the first opening is greater than a distance between other portions of the first contour and the first center of the main body portion of the first opening, and a distance between the first boundary portion and a center of the anode connection hole of the first sub-pixel where the first opening is located is smaller than a distance between other portions of the first contour and a center of the anode connection hole of the first sub-pixel where the first opening is located; and/or the presence of a gas in the gas,

the third opening has a third contour, the third contour has a third boundary portion, a distance between the third boundary portion and a third center of the main body portion of the third opening is greater than a distance between other portions of the third contour and the third center of the main body portion of the third opening, and a distance between the third boundary portion and a center of the anode connection hole of the third sub-pixel where the third opening is located is less than a distance between other portions of the third contour and a center of the anode connection hole of the third sub-pixel where the third opening is located.

23. A display substrate according to any one of claims 1 to 10, wherein the display substrate comprises a plurality of first pixel structures arranged in an array along a first direction and a second direction on the substrate to form rows and columns of sub-pixels; a connecting line of centers of the first openings of the plurality of first sub-pixels and the second openings of the plurality of second sub-pixels in the same sub-pixel row is a broken line, the broken line comprises a plurality of line segments, at least one line segment forms a third angle relative to the first direction, and the third angle is greater than 0 degree and less than or equal to 30 degrees; and/or a connection line of centers of the first openings of the plurality of first sub-pixels and the second openings of the plurality of second sub-pixels in the same sub-pixel column is a broken line, the broken line comprises a plurality of line segments, at least one line segment forms a fourth angle relative to the second direction, and the fourth angle is greater than 0 degree and smaller than or equal to 30 degrees.

24. The display substrate of claim 20, wherein in one of the first pixel structures, at least two first corners are oriented differently; and/or at least two third corners are oriented differently.

25. The display substrate according to claim 19, wherein the auxiliary portion of the first opening has a rounded portion at a side close to the anode connection hole of the first sub-pixel; and/or the auxiliary portion of the third opening has a rounded portion at a side close to the anode connection hole of the third sub-pixel.

26. The display substrate of any of claims 1-13, wherein a line connecting the first center and the fourth center is substantially parallel to a second direction; and/or a line connecting the second center and the third center is substantially parallel to the second direction.

27. The display substrate according to claim 16, wherein, in one of the first pixel structures, an orthographic projection pattern of the third openings of the four third sub-pixels on the substrate has a fifth center, a sixth center, a seventh center, and an eighth center, respectively, the fifth center, the sixth center, the seventh center, and the eighth center are sequentially connected to form a second quadrangle, the side lengths of at least two sides in the second quadrangle are not equal to each other, and the ratio of the side lengths of at least two sides in the second quadrangle is in a range of 0.8 to 1.2.

28. The display substrate of claim 27, wherein the first quadrilateral and/or the second quadrilateral is selected from at least one of a parallelogram or an isosceles trapezoid.

29. The display substrate of any of claims 1-15, 17-22, 24, and 25, wherein an orthographic pattern of at least one first opening on the substrate has a first axis of symmetry that is substantially parallel to a second direction.

30. A display substrate according to claim 16, wherein an orthographic pattern of the at least one third opening on the substrate has a third axis of symmetry, the third axis of symmetry of the at least one third opening being offset relative to the second direction by a prescribed offset angle.

31. The display substrate of any of claims 1-15, 17-22, 24, 25, 27, 28, and 30, wherein for two third openings adjacent along the first direction within one of the first pixel structures, a deflection direction of a third axis of symmetry of one third opening with respect to the second direction is opposite to a deflection direction of a third axis of symmetry of another third opening with respect to the second direction; and/or the presence of a gas in the gas,

for two third openings adjacent to each other in the second direction in one of the first pixel structures, the deflection direction of the third symmetry axis of one third opening with respect to the second direction is opposite to the deflection direction of the third symmetry axis of the other third opening with respect to the second direction.

32. The display substrate according to claim 31, wherein for two third openings adjacent to each other along the first direction in one of the first pixel structures, a deflection angle of a third symmetry axis of one third opening with respect to the second direction is substantially equal to a deflection angle of a third symmetry axis of the other third opening with respect to the second direction; and/or the presence of a gas in the gas,

for two third openings adjacent to each other along the second direction in one of the first pixel structures, the deflection angle of the third symmetry axis of one third opening relative to the second direction is substantially equal to the deflection angle of the third symmetry axis of the other third opening relative to the second direction.

33. A display substrate according to any one of claims 1-15, 17-22, 24, 25, 27, 28, 30 and 32, wherein the first opening of at least one first sub-pixel comprises a main portion and an auxiliary portion, an orthographic projection of the main portion of the first opening on the substrate being a major circle, and an orthographic projection of the auxiliary portion of the first opening on the substrate being projected in a second direction relative to the major circle.

34. The display substrate of claim 33, wherein the third opening of at least one third sub-pixel comprises a main portion and an auxiliary portion, an orthographic projection of the main portion of the third opening on the substrate is a major circle, and an orthographic projection of the auxiliary portion of the third opening on the substrate protrudes in a second direction relative to the major circle.

35. The display substrate of claim 33, wherein an orthographic projection of the second opening of at least one second sub-pixel on the substrate is a perfect circle.

36. The display substrate of any of claims 1-15, 17-22, 24, 25, 27, 28, 30, 32, 34, and 35, wherein an outline of an orthographic projection of the second opening of at least one second sub-pixel on the substrate comprises a second major arc and a second chord, the second chord and the anode connection hole of the second sub-pixel in which the second opening is located are located on opposite sides of the second major arc, respectively.

37. The display substrate of any of claims 1-15, 17-22, 24, 25, 27, 28, 30, 32, 34, and 35, wherein an outline of an orthographic projection of the second opening of at least one second sub-pixel on the substrate comprises a second major arc and a second chord, the second chord and an anode connection hole of the second sub-pixel in which the second opening is located being on a same side of the second major arc.

38. The display substrate of any of claims 1-15, 17-22, 24, 25, 27, 28, 30, 32, 34, and 35, wherein an orthographic projection of the second opening of the second sub-pixel on the substrate and an orthographic projection of the anode connection hole of the second sub-pixel on the substrate are both within an orthographic projection of the anode structure of the second sub-pixel on the substrate; and

the orthographic projection of the anode structure of the second sub-pixel on the substrate is basically circular.

39. The display substrate of any one of claims 1-15, 17-22, 24, 25, 27, 28, 30, 32, 34, and 35, wherein a contour of an orthographic pattern of the first opening of the first sub-pixel on the substrate includes a circular arc portion and a non-circular arc portion, a first distance of the circular arc portion of the first opening to a boundary of the anode structure of the first sub-pixel at each position along a radial direction thereof is substantially equal, a second distance of the non-circular arc portion of the first opening to the boundary of the anode structure of the first sub-pixel along the radial direction thereof is not equal to the first distance; and/or the presence of a gas in the gas,

the outline of the orthographic projection graph of the second opening of the second sub-pixel on the substrate comprises an arc part and a non-arc part, third distances from the arc part of the second opening to the boundary of the anode structure of the second sub-pixel at various positions along the radial direction of the second opening are approximately equal, and a fourth distance from the non-arc part of the second opening to the boundary of the anode structure of the second sub-pixel along the radial direction of the second opening is not equal to the third distance; and/or the presence of a gas in the gas,

the outline of the orthographic projection pattern of the third opening of the third sub-pixel on the substrate comprises an arc part and a non-arc part, fifth distances from the arc part of the third opening to the boundary of the anode structure of the third sub-pixel at various positions along the radial direction of the third opening are approximately equal, and a sixth distance from the non-arc part of the third opening to the boundary of the anode structure of the third sub-pixel along the radial direction of the third opening is not equal to the fifth distance.

40. The display substrate of claim 39, wherein the second distance is greater than the first distance; and/or the fourth distance is greater than the third distance; and/or the sixth distance is greater than the fifth distance.

41. The display substrate of claim 40, wherein the display substrate further comprises: a light emitting layer disposed on a side of the anode structure away from the substrate base plate,

the orthographic projections of the first opening of the first sub-pixel, the second opening of the second sub-pixel and the third opening of the third sub-pixel on the substrate respectively fall into the orthographic projection of the respective light-emitting layer of each sub-pixel on the substrate,

the outline of the orthographic projection graph of the first opening of the first sub-pixel on the substrate comprises an arc part and a non-arc part, seventh distances from the arc part of the first opening to the boundary of the light emitting layer of the first sub-pixel at various positions along the radial direction of the first opening are approximately equal, and an eighth distance from the non-arc part of the first opening to the boundary of the light emitting layer of the first sub-pixel along the radial direction of the first opening is not equal to the seventh distance; and/or the outline of the orthographic projection graph of the second opening of the second sub-pixel on the substrate comprises an arc part and a non-arc part, ninth distances from the arc part of the second opening to the boundary of the light-emitting layer of the second sub-pixel at various positions along the radial direction of the boundary are approximately equal, and a tenth distance from the non-arc part of the second opening to the boundary of the light-emitting layer of the second sub-pixel along the radial direction of the boundary is not equal to the ninth distance; and/or the outline of the orthographic projection pattern of the third opening of the third sub-pixel on the substrate comprises a circular arc part and a non-circular arc part, eleventh distances from the circular arc part of the third opening to the boundary of the light-emitting layer of the third sub-pixel at various positions along the radial direction of the boundary are approximately equal, and a twelfth distance from the non-circular arc part of the third opening to the boundary of the light-emitting layer of the third sub-pixel along the radial direction of the boundary is not equal to the eleventh distance.

42. The display substrate of any of claims 1-15, 17-22, 24, 25, 27, 28, 30, 32, 34, 35, 40, and 41, wherein a contour of an orthographic projection of the second opening of at least one second subpixel on the substrate comprises a second major arc and a second contour edge, the second contour edge comprising a plurality of sub-edges or curves at least partially surrounding an orthographic projection of the anode connection hole of the second subpixel on the substrate.

43. The display substrate of claim 42, wherein an orthographic pattern of the second openings on the substrate base is circular.

44. The display substrate according to claim 25, wherein the radius of curvature of the rounded portion is in a range of 1 to 10 μm.

45. The display substrate of claim 30, wherein the prescribed deflection angle is in a range of 1 ° to 30 °.

46. The display substrate of any one of claims 1-15, 17-22, 24, 25, 27, 28, 30, 32, 34, 35, 40, 41, and 43-45, wherein an orthographic projection of the second opening of at least one second sub-pixel on the substrate is drop-shaped; and/or the presence of a gas in the gas,

the orthographic projection of the third opening of at least one third sub-pixel on the substrate is in a water drop shape.

47. The display substrate of any of claims 1-3, wherein an orthographic projection of each of the second opening of the second sub-pixel and the third opening of the third sub-pixel on the substrate is circular;

the display substrate further includes: an anode structure disposed on a side of the pixel defining layer adjacent to the substrate base plate; a pixel drive circuit disposed between the substrate base plate and the anode structure; the anode structure is connected with the pixel driving circuit through the anode connecting hole;

the first opening of the first sub-pixel comprises a main body part and an auxiliary part, the orthographic projection of the main body part of the first opening on the substrate is circular, and the orthographic projection of the auxiliary part of the first opening on the substrate is protruded towards the orthographic projection of the anode connecting hole of the first sub-pixel where the first opening is located on the substrate relative to the circular shape of the main body part of the first opening;

an orthographic projection pattern of the first opening of the first sub-pixel on the substrate base plate has a first symmetry axis, and the first symmetry axis is substantially parallel to the second direction.

48. The display substrate of any of claims 1-15, 17-22, 24, 25, 27, 28, 30, 32, 34, 35, 40, 41, and 43-45, wherein the display substrate further comprises a second display region, wherein the display substrate further comprises:

a plurality of second pixel structures disposed on the substrate and located in the second display region, at least one of the second pixel structures including a fourth sub-pixel and a fifth sub-pixel;

wherein the pixel defining layer further comprises a plurality of fourth openings and a plurality of fifth openings,

the color of light emitted by the first sub-pixel is the same as that of light emitted by the fourth sub-pixel, and the color of light emitted by the second sub-pixel is the same as that of light emitted by the fifth sub-pixel;

the fourth sub-pixel comprises a fourth opening and the fifth sub-pixel comprises a fifth opening;

the area of the orthographic projection of the first opening of the first sub-pixel on the substrate base plate is smaller than the area of the orthographic projection of the fourth opening of the fourth sub-pixel on the substrate base plate, and the area of the orthographic projection of the second opening of the second sub-pixel on the substrate base plate is smaller than the area of the orthographic projection of the fifth opening of the fifth sub-pixel on the substrate base plate.

49. The display substrate of claim 48, wherein at least one of the second pixel structures further comprises a plurality of sixth subpixels, the third subpixels and the sixth subpixels emitting the same color of light;

the pixel defining layer further comprises a plurality of sixth openings, the sixth sub-pixels comprising sixth openings; and

the area of the orthographic projection of the third opening of the third sub-pixel on the substrate is smaller than the area of the orthographic projection of the sixth opening of the sixth sub-pixel on the substrate.

50. The display substrate of claim 48, wherein the plurality of second pixel structures are arranged in an array along a first direction and a second direction on the substrate to form rows and columns of subpixels;

the centers of at least some of the sub-pixels located in the first display region and at least one of the sub-pixels located in the second display region are substantially located on the same line parallel to the first direction or the second direction, wherein the colors of the at least some of the sub-pixels located in the first display region and the at least one of the sub-pixels located in the second display region are the same.

51. The display substrate according to claim 50, wherein in the same sub-pixel row, a line connecting centers of at least some of the sub-pixels in the first display region and at least one of the sub-pixels in the second display region is a broken line, wherein the colors of the at least some of the sub-pixels in the first display region and the at least one of the sub-pixels in the second display region are the same, and the broken line comprises a plurality of line segments, at least one of the line segments forms a fifth angle with respect to the first direction, and the fifth angle is greater than 0 ° and less than or equal to 30 °; and/or in the same sub-pixel column, a connecting line of centers of at least some sub-pixels located in the first display area and at least one sub-pixel located in the second display area is a broken line, wherein the colors of the at least some sub-pixels located in the first display area and the at least one sub-pixel located in the second display area are the same, the broken line comprises a plurality of line segments, at least one line segment forms a sixth angle with respect to the first direction, and the sixth angle is greater than 0 ° and less than or equal to 30 °.

52. The display substrate of any of claims 1-15, 17-22, 24, 25, 27, 28, 30, 32, 34, 35, 40, 41, 43-45, and 49-51, wherein the shapes of the light emitting layers of the same color subpixels in the first and second display regions, respectively, are substantially the same; and/or the presence of a gas in the gas,

the areas of orthographic projections of the light emitting layers of the sub-pixels of the same color on the substrate are substantially equal, wherein the sub-pixels are respectively located in the first display area and the second display area.

53. A display device, wherein the display device comprises the display substrate of any one of claims 1 to 52.

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