Display substrate and display device

Abstract

A display substrate having a plurality of sub-pixels (SP), comprising a base substrate (110), a pixel defining layer (120), an encapsulation layer (140), and a color film layer (130), wherein the pixel defining layer (120) is located on one side of the base substrate (110) and comprises a plurality of sub-pixel openings (121) for the plurality of sub-pixels (SP); the encapsulation layer (140) is located on the side of the pixel defining layer (120) away from the base substrate (110); and the color film layer (130) is located on the side of the encapsulation layer (140) away from the pixel defining layer (120) and comprises a first color film layer (131) and a second color film layer (132) located on the side of the first color film layer (131) away from the base substrate (110). The first color film layer (131) and the second color film layer (132) jointly define a plurality of first color film openings (CF1) for the plurality of sub-pixels (SP), and the plurality of first color film openings (CF1) have an elliptical planar shape. The display substrate has an improved display effect.

Description

Display substrate and display device Technical Field

[0001] Embodiments of this disclosure relate to a display substrate and a display device. Background Technology

[0002] OLED (Organic Light Emitting Diode) display devices have a series of advantages such as self-illumination, high contrast, high definition, wide viewing angle, low power consumption, fast response speed, and low manufacturing cost. As a result, they have become one of the key development directions for next-generation display devices and have therefore received increasing attention. Summary of the Invention

[0003] At least one embodiment of this disclosure provides a display substrate having a plurality of sub-pixels, and including a substrate, a pixel defining layer, an encapsulation layer, and a color filter layer; the pixel defining layer is located on one side of the substrate and includes a plurality of sub-pixel openings for the plurality of sub-pixels; the encapsulation layer is located on the side of the pixel defining layer away from the substrate; the color filter layer is located on the side of the encapsulation layer away from the pixel defining layer and includes a first color filter layer and a second color filter layer located on the side of the first color filter layer away from the substrate, the first color filter layer and the second color filter layer jointly defining a plurality of first color filter openings for the plurality of sub-pixels; wherein the planar shape of the plurality of first color filter openings is elliptical.

[0004] For example, at least one embodiment of this disclosure provides a display substrate in which the ellipse includes a regular ellipse and an inverted ellipse, and the planar shape of the plurality of first color filter openings is a regular ellipse or an inverted ellipse.

[0005] For example, at least one embodiment of this disclosure provides a display substrate in which the plurality of sub-pixels include a plurality of first color sub-pixels, a plurality of second color sub-pixels, and a plurality of third color sub-pixels. The plurality of first color sub-pixels are configured to emit light of a first color, the plurality of second color sub-pixels are configured to emit light of a second color, and the plurality of third color sub-pixels are configured to emit light of a third color. The color of the first color filter layer is the first color, the color of the second color filter layer is the second color, the first color filter layer includes a plurality of first color filter openings defining the plurality of second color sub-pixels and the plurality of third color sub-pixels, and the second color filter layer includes a plurality of first color filter openings defining the plurality of first color sub-pixels and located in the plurality of first color filter openings of the plurality of second color sub-pixels. The plurality of first color filter openings of the plurality of first color sub-pixels expose the first color filter layer.

[0006] For example, at least one embodiment of this disclosure provides a display substrate in which the color filter layer further includes a third color filter layer located on the side of the second color filter layer away from the substrate, the second color filter layer and the third color filter layer together defining a plurality of second color filter openings for the plurality of sub-pixels; the planar shape of the plurality of second color filter openings is circular or elliptical.

[0007] For example, at least one embodiment of this disclosure provides a display substrate in which the color of the third color filter layer is the third color, the second color filter layer includes a plurality of second color filter openings defining the plurality of third color sub-pixels, the third color filter layer includes a plurality of second color filter openings defining the plurality of first color sub-pixels and the plurality of second color sub-pixels, and is located in the plurality of first color filter openings and the plurality of second color filter openings of the plurality of third color sub-pixels.

[0008] For example, at least one embodiment of this disclosure provides a display substrate in which, for the same sub-pixel corresponding to a sub-pixel opening and a first color filter opening, the planar shape of the sub-pixel opening is circular and the planar shape of the first color filter opening is inverted ellipse; or the planar shape of the sub-pixel opening is inverted ellipse and the planar shape of the first color filter opening is regular ellipse; or the planar shape of the sub-pixel opening is circular and the planar shape of the first color filter opening is regular ellipse; or the planar shape of the sub-pixel opening is inverted ellipse and the planar shape of the first color filter opening is inverted ellipse; or the planar shape of the sub-pixel opening is regular ellipse and the planar shape of the first color filter opening is regular ellipse.

[0009] For example, at least one embodiment of this disclosure provides a display substrate in which the planar shape of the plurality of sub-pixel openings is circular, elliptical, or inverted elliptical.

[0010] For example, in at least one embodiment of this disclosure, a display substrate is provided in which the planar shape of the sub-pixel opening is circular and the planar shape of the first color filter opening is inverted ellipse, the diameter of the circular sub-pixel opening is a first diameter, and the length of the major axis of the inverted ellipse of the first color filter opening is a first major axis length, where 0.5 < first diameter / first major axis length < 0.9.

[0011] For example, in at least one embodiment of this disclosure, a display substrate is provided in which the planar shape of the sub-pixel opening is an inverted ellipse and the planar shape of the first color filter opening is a regular ellipse. In this case, the major axis length of the inverted ellipse of the sub-pixel opening is the second major axis length, the major axis length of the regular ellipse of the first color filter opening is the third major axis length, and the minor axis length of the regular ellipse of the first color filter opening is the first minor axis length. 0.4 < second major axis length / third major axis length < 0.8, 1.0 < third major axis length / first minor axis length < 2.0.

[0012] For example, in at least one embodiment of this disclosure, a display substrate is provided in which, when the planar shape of the sub-pixel opening is circular and the planar shape of the first color filter opening is elliptical, the diameter of the circular sub-pixel opening is a first diameter, the major axis length of the elliptical first color filter opening is a third major axis length, the minor axis length of the elliptical first color filter opening is a first minor axis length, and 0.4 < first diameter / third major axis length < 0.8, 1.0 < third major axis length / first minor axis length < 2.0.

[0013] For example, in at least one embodiment of this disclosure, a display substrate is provided in which, when the planar shape of the sub-pixel opening is a regular ellipse and the planar shape of the first color filter opening is an inverted ellipse, the major axis length of the regular ellipse of the sub-pixel opening is the fourth major axis length, the minor axis length of the regular ellipse of the sub-pixel opening is the second minor axis length, and the major axis length of the inverted ellipse of the first color filter opening is the first major axis length, where 1 < fourth major axis length / second minor axis length < 1.3, and 0.5 < fourth major axis length / first major axis length < 0.9.

[0014] For example, in at least one embodiment of this disclosure, a display substrate is provided in which, when the planar shape of the sub-pixel opening is an ellipse and the planar shape of the first color filter opening is an ellipse, the major axis length of the ellipse of the sub-pixel opening is the fourth major axis length, the minor axis length of the ellipse of the sub-pixel opening is the second minor axis length, the major axis length of the ellipse of the first color filter opening is the third major axis length, and the minor axis length of the ellipse of the first color filter opening is the first minor axis length, where 1 < fourth major axis length / second minor axis length < 1.3, 1 < third major axis length / first minor axis length < 2, and 0.4 < fourth major axis length / third major axis length < 0.9.

[0015] For example, in at least one embodiment of this disclosure, a display substrate is provided in which the planar shape of the sub-pixel opening is an inverted ellipse and the planar shape of the first color filter opening is an inverted ellipse, wherein the second major axis length of the inverted ellipse of the sub-pixel opening and the major axis length of the inverted ellipse of the first color filter opening are the first major axis lengths, and 0.5 < second major axis length / first major axis length < 0.9.

[0016] For example, at least one embodiment of this disclosure provides a display substrate in which the plurality of sub-pixels include a plurality of first color sub-pixels, the plurality of first color sub-pixels are configured to emit light of a first color, and the major axis of the ellipse of the plurality of first color filter openings of the plurality of first color sub-pixels includes M orientations, where M is a positive integer greater than or equal to 4.

[0017] For example, at least one embodiment of this disclosure provides a display substrate in which the included angle between two adjacent orientations in the M orientations is 360° / M*N, where N is a positive integer less than M.

[0018] For example, at least one embodiment of this disclosure provides a display substrate in which the plurality of sub-pixels further includes a plurality of second color sub-pixels, the plurality of second color sub-pixels being configured to emit light of a second color, and the major axis of the ellipse of the plurality of first color filter openings of the plurality of second color sub-pixels including X orientations, where X is a positive integer greater than or equal to 2, and X is the same as or different from M.

[0019] For example, at least one embodiment of this disclosure provides a display substrate in which, for the same sub-pixel, a first color filter opening, and a second color filter opening, the orthographic projection of the first color filter opening on the substrate is located inside the orthographic projection of the second color filter opening on the substrate, and the orthographic projection of the sub-pixel opening on the substrate at least partially overlaps with the orthographic projection of the first color filter opening on the substrate.

[0020] For example, at least one embodiment of this disclosure provides a display substrate in which, for the same sub-pixel aperture, first color filter aperture, and second color filter aperture, the orthographic projection of the first color filter aperture on the substrate is located inside the orthographic projection of the second color filter aperture on the substrate, and the edge of the orthographic projection of the first color filter aperture on the substrate does not overlap with the edge of the orthographic projection of the second color filter aperture on the substrate; the orthographic projection of the sub-pixel aperture on the substrate is located inside the orthographic projection of the first color filter aperture on the substrate, and the edge of the orthographic projection of the sub-pixel aperture on the substrate does not overlap with the edge of the orthographic projection of the first color filter aperture on the substrate.

[0021] For example, at least one embodiment of this disclosure provides a display substrate in which, for each of a plurality of sub-pixels with the same emitting color, the distance between the geometric center of the orthographic projection of the sub-pixel opening on the substrate and the geometric center of the orthographic projection of the first color filter opening on the substrate is a misalignment distance, and the misalignment distances of the plurality of sub-pixels with the same emitting color are not exactly the same.

[0022] For example, at least one embodiment of this disclosure provides a display substrate in which, for adjacent first sub-pixels and second sub-pixels with the same emission color, the planar shapes of the sub-pixel openings of the first sub-pixel and the second sub-pixel are the same, and the planar shapes of the first color filter openings are the same. The distance between the geometric center of the orthographic projection of the sub-pixel opening of the first sub-pixel on the substrate and the geometric center of the orthographic projection of the first color filter opening of the first sub-pixel on the substrate is a first misalignment distance, and the distance between the geometric center of the orthographic projection of the sub-pixel opening of the second sub-pixel on the substrate and the geometric center of the orthographic projection of the first color filter opening of the second sub-pixel on the substrate is a second misalignment distance. The first misalignment distance is different from the second misalignment distance.

[0023] For example, at least one embodiment of this disclosure provides a display substrate in which, for each of a plurality of sub-pixels with the same emitting color, the geometric center of the orthographic projection of the sub-pixel opening on the substrate overlaps with the geometric center of the orthographic projection of the first color filter opening on the substrate. The areas of the orthographic projections of the sub-pixel openings of the plurality of sub-pixels with the same emitting color on the substrate are not completely identical.

[0024] For example, at least one embodiment of this disclosure provides a display substrate in which, for adjacent first sub-pixels and second sub-pixels with the same emission color, the planar shapes of the sub-pixel openings of the first sub-pixel and the second sub-pixel are the same but the planar dimensions are different, and the planar shapes of the first color filter openings of the first sub-pixel and the second sub-pixel are the same but the planar dimensions are different.

[0025] For example, at least one embodiment of this disclosure provides a display substrate in which, for each of a plurality of sub-pixels with the same emitting color, a sub-pixel aperture, a first color filter aperture, and a second color filter aperture, the distance between the geometric center of the orthographic projection of the sub-pixel aperture on the substrate and the geometric center of the orthographic projection of the first color filter aperture on the substrate is a third misalignment distance, and the third misalignment distances of the plurality of sub-pixels with the same emitting color are not completely the same; the distance between the geometric center of the orthographic projection of the second color filter aperture on the substrate and the geometric center of the orthographic projection of the first color filter aperture on the substrate is a fourth misalignment distance, and the fourth misalignment distances of the plurality of sub-pixels with the same emitting color are not completely the same.

[0026] For example, at least one embodiment of this disclosure provides a display substrate that further includes a touch layer located between the encapsulation layer and the color filter layer.

[0027] At least one embodiment of this disclosure also provides a display device, which includes the display substrate provided in the embodiments of this disclosure. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this disclosure and are not intended to limit this disclosure.

[0029] Figure 1 is a partial cross-sectional schematic diagram of a display substrate provided in at least one embodiment of the present disclosure;

[0030] Figures 2-5 and 29-30 are various planar schematic diagrams of the sub-pixel openings and the first color filter openings in a display substrate provided in at least one embodiment of the present disclosure;

[0031] Figure 6 is a schematic diagram showing the formation of an inverted ellipse shape in the sub-pixel opening or the first color filter opening in a display substrate provided in at least one embodiment of the present disclosure;

[0032] Figures 7-10 are schematic diagrams showing various arrangements of sub-pixel openings of multiple sub-pixels and openings of the first color filter in a display substrate provided in at least one embodiment of the present disclosure.

[0033] Figures 11-13 are schematic diagrams showing various arrangements of the sub-pixel opening of a sub-pixel and the first color filter opening in a display substrate provided in at least one embodiment of the present disclosure.

[0034] Figure 14 is a schematic diagram showing the arrangement of the sub-pixel opening, the first color filter opening, and the second color filter opening of a sub-pixel in a display substrate provided in at least one embodiment of the present disclosure.

[0035] Figures 15-20 are schematic diagrams showing various arrangements of the first color filter opening and the second color filter opening of a sub-pixel in a display substrate provided in at least one embodiment of the present disclosure;

[0036] Figure 21 is a planar schematic diagram of the sub-pixel openings of two adjacent sub-pixels and the first color filter opening in a display substrate provided in at least one embodiment of the present disclosure;

[0037] Figure 22 is another planar schematic diagram of the sub-pixel openings of two adjacent sub-pixels and the first color filter opening in a display substrate provided in at least one embodiment of the present disclosure;

[0038] Figure 23 is a planar schematic diagram of the sub-pixel openings, the first color filter opening, and the second color filter opening of a plurality of sub-pixels with the same light emission color in a display substrate provided in at least one embodiment of the present disclosure.

[0039] Figures 24-27 are schematic planar views of the sub-pixel openings, the first color filter opening, and the second color filter opening of a plurality of sub-pixels with the same luminous color in a display substrate provided in at least one embodiment of the present disclosure; and

[0040] Figure 28 is another planar schematic diagram of the sub-pixel openings, the first color filter opening, and the second color filter opening of a plurality of sub-pixels with the same emission color in a display substrate provided in at least one embodiment of the present disclosure. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0042] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as “upper,” “lower,” “left,” and “right” are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0043] In OLEDs, red, green and blue pixels are usually arranged side by side to achieve full color in OLED display devices. In this case, the display substrate usually needs to be combined with a polarizer to achieve a good display effect.

[0044] In some display substrates, COE (Color Filter on Encapsulation) technology can be used to save power and improve light transmittance. In COE technology, a combination of a black matrix and a color filter can replace the original polarizer. Display substrates using this technology have advantages such as high color gamut. However, when the display substrate is illuminated by a point light source in the screen-off state, the reflected light will diffract due to the openings in the black matrix, resulting in color separation.

[0045] At least one embodiment of this disclosure provides a display substrate having a plurality of sub-pixels, and including a substrate, a pixel defining layer, an encapsulation layer, and a color filter layer; the pixel defining layer is located on one side of the substrate and includes a plurality of sub-pixel openings for the plurality of sub-pixels; the encapsulation layer is located on the side of the pixel defining layer away from the substrate; the color filter layer is located on the side of the encapsulation layer away from the pixel defining layer and includes a first color filter layer and a second color filter layer located on the side of the first color filter layer away from the substrate, the first color filter layer and the second color filter layer jointly defining a plurality of first color filter openings for the plurality of sub-pixels; wherein the planar shape of the plurality of first color filter openings is elliptical.

[0046] In the display substrate provided in this embodiment, an overlapping structure of the first color filter layer and the second color filter layer is used to form multiple first color filter openings for multiple sub-pixels. By designing the opening shape of the multiple sub-pixel openings and the multiple first color filter openings, the color separation and other defects of the display substrate can be significantly improved, the dark state visual effect can be improved, the display effect of the display substrate can be enhanced, and the setting of the black matrix can be reduced. Thus, in the process of manufacturing the display substrate, one black matrix mask process can be reduced, that is, one mask is saved.

[0047] The following describes in detail the display substrate provided in the embodiments of this disclosure through several specific examples.

[0048] At least one embodiment of this disclosure provides a display substrate. FIG1 shows a partial cross-sectional schematic diagram of the display substrate. As shown in FIG1, the display substrate has a plurality of sub-pixels SP and includes a substrate 110, a pixel defining layer 120, an encapsulation layer 140, and a color filter layer 130, etc.

[0049] As shown in Figure 1, the pixel defining layer 120 is located on one side of the substrate 110 and includes a plurality of sub-pixel openings 121 for a plurality of sub-pixels SP, each sub-pixel opening 121 defining a light-emitting area of ​​a sub-pixel SP; the encapsulation layer 140 is located on the side of the pixel defining layer 120 away from the substrate 110 and is used to encapsulate the display substrate; the color filter layer 130 is located on the side of the encapsulation layer 140 away from the pixel defining layer 120 and includes a first color filter layer 131 and a second color filter layer 132 located on the side of the first color filter layer 131 away from the substrate 110, the first color filter layer 131 and the second color filter layer 132 together defining a plurality of first color filter openings CF1 for a plurality of sub-pixels SP.

[0050] Therefore, in the embodiments of this disclosure, the color filter layer 130 can simultaneously realize the functions of both the black matrix and the color filter, thus eliminating the need for an additional black matrix layer. This reduces the number of black matrix mask processes during the fabrication of the display substrate, effectively saving a mask step. Furthermore, the overlapping structure of the first and second color filter layers forms multiple first color filter openings for multiple sub-pixels. The aforementioned design of the opening shapes of the multiple sub-pixel openings and the multiple first color filter openings significantly improves color separation and other defects, enhances dark-state visual effects, and improves the display performance of the display substrate.

[0051] For example, Figures 2-5 and 29-30 show a planar schematic diagram of the sub-pixel openings and the first color filter openings in a display substrate provided in at least one embodiment of the present disclosure. As shown in Figures 2-5 and 29-30, the planar shape of the plurality of sub-pixel openings 121 is circular or elliptical, and in some embodiments it may also be polygonal, etc. The planar shape of the plurality of first color filter openings CF1 is elliptical.

[0052] For example, in the embodiments of this disclosure, the ellipse includes a regular ellipse and an inverted ellipse. The regular ellipse is the shape of the first color filter opening CF1 in FIG3, which includes two axes of symmetry, a major axis and a minor axis. The inverted ellipse is the shape of the first color filter opening CF1 in FIG2, which includes only one axis of symmetry, the minor axis, and its major axis is not an axis of symmetry; or, the inverted ellipse may include only one axis of symmetry, the major axis, and its minor axis is not an axis of symmetry.

[0053] For example, in Figure 3, when the shape of the first color filter opening CF1 is an ellipse, the sub-pixel opening can be an ellipse or an inverted ellipse. Figure 3 uses an inverted ellipse as an example. In Figure 2, when the shape of the first color filter opening CF1 is an inverted ellipse, the sub-pixel opening can be an ellipse or an inverted ellipse. Figure 2 uses a circle as an example.

[0054] For example, Figure 6 illustrates the formation process of the inverted ellipse in an embodiment of this disclosure. As shown in Figure 6, the inverted ellipse in this embodiment refers to the shape formed by chamfering, for example, rounding, the edge of the circle 10, i.e., after cutting off a crescent shape 20 from the circle 10. The radius of curvature of the chamfered edge 12 will increase. For example, in some examples, the tangent point of the crescent shape 20 can be located at 3 / 4-9 / 10 of the diameter of the circle 10, such as 7 / 8. That is, referring to Figure 6, the tangent point of the crescent shape 20 can be located at 7 / 8 of the diameter of the circle 10. In this case, the minor axis length of the inverted ellipse is 7 / 8 of the diameter of the circle 10.

[0055] For example, the planar shape of multiple sub-pixel SP openings is circular, elliptical, or inverted elliptical, and the planar shape of multiple first color filter openings CF1 is elliptical or inverted elliptical.

[0056] For example, in some embodiments, as shown in FIG1, the display substrate further includes a driving circuit layer 111 disposed on a substrate 110, a planarization layer 112 disposed on the side of the driving circuit layer 111 away from the substrate 110, and a plurality of first electrodes E1 disposed on the side of the planarization layer 112 away from the substrate 110. A plurality of sub-pixel openings 121 expose the plurality of first electrodes E1 respectively. A light-emitting layer E3 is disposed in the plurality of sub-pixel openings 121, and a second electrode E2 is disposed on the side of the light-emitting layer E3 away from the substrate 110. For example, the first electrode E1, the light-emitting layer E3, and the second electrode E2 corresponding to each sub-pixel opening 121 constitute a light-emitting device EM, each sub-pixel SP includes a light-emitting device EM, and the area defined by the sub-pixel opening 121 is the light-emitting area of ​​the sub-pixel SP.

[0057] For example, the driving circuit layer 111 includes multiple pixel driving circuits, each pixel driving circuit including multiple thin film transistors and storage capacitors, etc., and can be formed as 2T1C (i.e., including two transistors and one storage capacitor), 3T1C (i.e., including three transistors and one storage capacitor), 7T1C (i.e., including seven transistors and one storage capacitor), 8T1C (i.e., including eight transistors and one storage capacitor) or 8T2C (i.e., including eight transistors and two storage capacitors), etc.

[0058] For example, each sub-pixel SP includes a pixel driving circuit. The first electrode E1 can be an anode and is connected to the corresponding pixel driving circuit through a via in the planarization layer 112, so that the light-emitting device EM is controlled by the pixel driving circuit. For example, the first electrode E1 is used to transmit pixel voltage, such as a high-level voltage. For example, depending on the different emission colors of each sub-pixel SP, the light-emitting layer E3 can be a red light-emitting layer, a green light-emitting layer, or a blue light-emitting layer, etc. For example, the second electrode E2 is a cathode, and the cathodes of multiple sub-pixels SP can be integrally connected to transmit a common voltage, such as a low-level voltage; thus, a voltage difference is generated between the first electrode E1 and the second electrode EM2 to drive the light-emitting layer E3 to emit light.

[0059] For example, in some embodiments, as shown in FIG1, the plurality of sub-pixels SP includes a plurality of first color sub-pixels SP1, a plurality of second color sub-pixels SP2, and a plurality of third color sub-pixels SP3. The plurality of first color sub-pixels SP1 are configured to emit light of a first color, the plurality of second color sub-pixels SP2 are configured to emit light of a second color, and the plurality of third color sub-pixels SP3 are configured to emit light of a third color. The color of the first color filter layer 131 is the first color, that is, it is used to transmit light of the first color, and the color of the second color filter layer 132 is the second color, that is, it is used to transmit light of the second color.

[0060] For example, in some embodiments, the first color sub-pixel SP1, the second color sub-pixel SP2, and the third color sub-pixel SP3 are respectively one of a red sub-pixel, a blue sub-pixel, and a green sub-pixel. For example, the first color sub-pixel SP1, the second color sub-pixel SP2, and the third color sub-pixel SP3 can be a red sub-pixel, a blue sub-pixel, and a green sub-pixel; or, the first color sub-pixel SP1, the second color sub-pixel SP2, and the third color sub-pixel SP3 can be a blue sub-pixel, a red sub-pixel, and a green sub-pixel; or, the first color sub-pixel SP1, the second color sub-pixel SP2, and the third color sub-pixel SP3 can be a blue sub-pixel, a green sub-pixel, and a red sub-pixel, etc. The embodiments of this disclosure do not limit the specific light-emitting colors of the first color sub-pixel SP1, the second color sub-pixel SP2, and the third color sub-pixel SP3.

[0061] For example, in some embodiments, the subpixel openings of the red, blue, and green subpixels can all be circular or inverted elliptical; alternatively, one or two of the red, blue, and green subpixels may have circular subpixel openings, while the other two or one may have inverted elliptical subpixel openings. For instance, in some examples, the subpixel opening of the red subpixel is inverted elliptical, the subpixel openings of the blue and green subpixels are circular, and the first color filter opening CF1 of the red, blue, and green subpixels is inverted elliptical.

[0062] For example, in some embodiments, the first color filter layer 131 can be a red color filter layer, and the second color filter layer 132 can be a blue color filter layer. At the sub-pixel opening position corresponding to the red sub-pixel, the second color filter layer 132 forms a first color filter opening CF1. At the sub-pixel opening position corresponding to the blue sub-pixel, the first color filter layer 131 forms a first color filter opening CF1. At the sub-pixel opening position corresponding to the green sub-pixel, both the first color filter layer 131 and the second color filter layer 132 form a first color filter opening CF1. Alternatively, the opening formed by the first color filter layer 131 is called the first color filter opening CF1, and the opening formed by the second color filter layer 132 is called the second color filter opening CF2 (that is, when there are two color filter openings stacked, the one located below is called the first color filter opening CF1, and the one located above is called the second color filter opening CF2). A green color filter layer is disposed in the color filter opening. In this process, a red color film layer is formed first, followed by a blue color film layer, and finally a green color film layer. Color film layer 130 uses overlapping red and blue color film layers. In some examples, the order of the color films can be flexibly adjusted according to the leveling properties and process conditions. For example, in other examples, color film layer 130 can also use overlapping red and green color film layers or blue and green color film layers.

[0063] For example, in some embodiments, as shown in FIG1, a first color filter layer 131 includes a plurality of first color filter openings CF1 defining a plurality of second color sub-pixels SP2 and a plurality of third color sub-pixels SP3. A second color filter layer 132 includes a plurality of first color filter openings CF1 defining a plurality of first color sub-pixels SP1 and is located within the plurality of first color filter openings CF1 of the plurality of second color sub-pixels SP2. The portion of the second color filter layer 132 located within the plurality of first color filter openings CF1 of the plurality of second color sub-pixels SP2 serves as the color filter structure of the plurality of second color sub-pixels SP2. The plurality of first color filter openings CF1 of the plurality of first color sub-pixels SP1 expose the first color filter layer 131. The portion of the first color filter layer 131 exposed by the plurality of first color filter openings CF1 of the plurality of first color sub-pixels SP1 serves as the color filter structure of the plurality of first color sub-pixels SP1.

[0064] For example, in some embodiments, the shape and size of the sub-pixel opening 121 of different sub-pixels SP can be the same or different, the shape and size of the first color filter opening CF1 of different sub-pixels SP can be the same or different, and the combination of the sub-pixel opening 121 and the first color filter opening CF1 of different sub-pixels SP (e.g., relative position, etc.) can be the same or different.

[0065] For example, in some cases, as shown in Figure 2, for the same sub-pixel corresponding to sub-pixel opening 121 and first color filter opening CF1, the planar shape of sub-pixel opening 121 is circular, and the planar shape of first color filter opening CF1 is inverted ellipse. In this case, the diameter of the circle is the first diameter D1, and the length of the major axis of the inverted ellipse is the first major axis length L1. Then, 0.5 < first diameter D1 / first major axis length L1 < 0.9. For example, the first diameter D1 / first major axis length L1 is 0.6, 0.7, or 0.8, etc.

[0066] Alternatively, in some examples, as shown in Figure 3, the planar shape of the sub-pixel opening 121 is an inverted ellipse, and the planar shape of the first color filter opening CF1 is a regular ellipse. In this case, the length of the major axis of the inverted ellipse is the length of the second major axis L2, the length of the major axis of the regular ellipse is the length of the third major axis L3, and the length of the minor axis of the regular ellipse is the length of the first minor axis S1. Then, 0.4 < the length of the second major axis L2 / the length of the third major axis L3 < 0.8, and 1.0 < the length of the third major axis L3 / the length of the first minor axis S1 < 2.0.

[0067] For example, the length of the second major axis L2 / the length of the third major axis L3 is 0.5, 0.6 or 0.7, etc., and the length of the third major axis L3 / the length of the first minor axis S1 is 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8 or 1.9, etc.

[0068] Alternatively, in some examples, as shown in Figure 4, the planar shape of the sub-pixel opening 121 is circular, and the planar shape of the first color filter opening CF1 is an ellipse. In this case, the diameter of the circle is the first diameter D1, the length of the major axis of the ellipse is the third major axis length L3, and the length of the minor axis of the ellipse is the first minor axis length S1. Then, 0.4 < first diameter D1 / third major axis length L3 < 0.8, and 1.0 < third major axis length L3 / first minor axis length S1 < 2.0.

[0069] For example, the first diameter D1 / the third major axis length L3 is 0.5, 0.6 or 0.7, etc., and the third major axis length L3 / the first minor axis length S1 is 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8 or 1.9, etc.

[0070] Alternatively, in some examples, as shown in Figure 5, the planar shape of the sub-pixel opening 121 is an inverted ellipse, and the planar shape of the first color filter opening CF1 is also an inverted ellipse. The inverted ellipse of the sub-pixel opening 121 and the inverted ellipse of the first color filter opening CF1 are arranged in the same direction (i.e., the extension directions and relative positions of the major and minor axes are the same; or, in other examples, the arrangement directions may be different). The length of the second major axis of the inverted ellipse of the sub-pixel opening 121 is L2, and the length of the major axis of the inverted ellipse of the first color filter opening CF1 is the length of the first major axis L1. Then, 0.5 < the length of the second major axis L2 / the length of the first major axis L1 < 0.9. For example, the length of the second major axis L2 / the length of the first major axis L1 is 0.6, 0.7, or 0.8, etc.

[0071] Alternatively, in some examples, as shown in Figure 29, when the planar shape of the sub-pixel opening 121 is a regular ellipse and the planar shape of the first color filter opening CF1 is an inverted ellipse, the major axis length of the regular ellipse of the sub-pixel opening 121 is the fourth major axis length L4, the minor axis length of the regular ellipse of the sub-pixel opening 121 is the second minor axis length S2, and the major axis length of the inverted ellipse of the first color filter opening CF1 is the first major axis length L1. Then, 1 < fourth major axis length L4 / second minor axis length S2 < 1.3, 0.5 < fourth major axis length L4 / first major axis length L1 < 0.9.

[0072] For example, the length of the fourth major axis L4 / the length of the second minor axis S2 is 1.1 or 1.2, etc., and the length of the fourth major axis L4 / the length of the first major axis L1 is 0.6, 0.7 or 0.8, etc.

[0073] For example, in some examples, as shown in Figure 30, when the planar shape of the sub-pixel opening 121 is a regular ellipse and the planar shape of the first color filter opening CF1 is a regular ellipse, the major axis length of the regular ellipse of the sub-pixel opening 121 is the fourth major axis length L4, the minor axis length of the regular ellipse of the sub-pixel opening 121 is the second minor axis length S2, the major axis length of the regular ellipse of the first color filter opening CF1 is the third major axis length L3, and the minor axis length of the regular ellipse of the first color filter opening CF1 is the first minor axis length S1. 1 < fourth major axis length L4 / second minor axis length S2 < 1.3, 1 < third major axis length L3 / first minor axis length S1 < 2, and 0.4 < fourth major axis length L4 / third major axis length L3 < 0.9.

[0074] For example, the length of the first minor axis S1 is equal to the length of the second minor axis S2, the length of the fourth major axis L4 / the length of the second minor axis S2 is 1.1 or 1.2, etc., the length of the third major axis L3 / the length of the first minor axis S1 is 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8 or 1.9, etc., and the length of the fourth major axis L4 / the length of the third major axis L3 is 0.5, 0.6, 0.7 or 0.8, etc.

[0075] For example, in the above embodiments, for the sub-pixel opening 121, when it is circular, the first diameter D1 is 10μm-100μm, such as 10μm, 20μm, 30μm, 40μm, 50μm, 60μm, 70μm, 80μm, 90μm or 100μm, etc. When it is elliptical, its major axis length, such as the second major axis length L2 mentioned above, is 10μm-100μm, such as 10μm, 20μm, 30μm, 40μm, 50μm, 60μm, 70μm, 80μm, 90μm or 100μm, etc. The size of the first color filter opening CF1 (e.g., major axis length and minor axis length, etc.) can be obtained according to the ratio range given in different embodiments, which will not be repeated here.

[0076] Experimental verification shows that the various sub-pixel openings and the first color filter openings can disrupt the stable phase of diffracted light in the display substrate, thereby significantly improving the color separation phenomenon of the display substrate and giving the display substrate a better display effect.

[0077] For example, Figure 7 shows a schematic diagram of the arrangement of sub-pixel openings of multiple sub-pixels and first color filter openings in a display substrate provided in at least one embodiment of this disclosure. In some embodiments, the major axis of the ellipse of the multiple first color filter openings CF1 of the multiple first color sub-pixels SP1 includes multiple orientations, such as M orientations, where M is a positive integer greater than or equal to 2, for example, M is a positive integer greater than or equal to 4. For example, in the example of Figure 7, M is 8, and the eight orientations of the major axis of the ellipse of the multiple first color filter openings CF1 are shown by the arrows in Figure 7, such as the eight orientations of up, down, left, right, upper left, lower left, upper right, and lower right. For example, the sub-pixel openings of the multiple sub-pixels may include only one fixed orientation, or multiple different orientations.

[0078] For example, the sub-pixels SP shown in Figure 7 are equivalent to a pixel unit. The display substrate is composed of multiple such pixel units. In a pixel unit, the shape of each sub-pixel can be distributed as shown in Figure 7. The pixel unit in Figure 7 is an example of the size shown. In other examples, the pixel unit can also be other sizes, including different numbers of sub-pixels.

[0079] For example, in the partial sub-pixel SP shown in Figure 7, the first color sub-pixels SP1 are arranged in two columns. In each first color sub-pixel SP1, the shape, relative position, and size of the sub-pixel opening 121 and the first color filter opening CF1 remain unchanged. That is, when a certain first color filter opening CF1 rotates in the plane, its corresponding sub-pixel opening also rotates. The orientation of the major axis of the ellipse of the first color filter opening CF1 of multiple first color sub-pixels SP1 (in this example, the first color filter opening CF1 of the first color sub-pixel SP1 is an inverted ellipse) has M possible orientations, as shown by the arrows in Figure 7. For example, the angle between two adjacent orientations in the M orientations is 360° / M*N, where N is a positive integer less than M. For example, in the example in Figure 7, M is 8, N is 1, and the angle between two adjacent orientations in the M orientations is 360° / 8 = 45°. For example, in other examples, the angle between two adjacent orientations can also be random, that is, the M orientations can be random.

[0080] For example, N can be any positive integer less than M. For instance, when M is 8, N can be any positive integer from 1 to 7.

[0081] It should be noted that the included angle between two adjacent orientations refers to the angle between the two orientations with the smallest included angle, and not the included angle between the orientations of the first color filter opening CF1 of the adjacent sub-pixel SP; for example, the included angle between any two adjacent orientations is the same, which is 360° / M*N.

[0082] For example, in the embodiment of FIG7, the first color filter opening CF1 and the sub-pixel opening 121 of the first color sub-pixel SP1 adopt the form of FIG5. In other embodiments, the first color filter opening CF1 and the sub-pixel opening 121 of the first color sub-pixel SP1 may also adopt other forms, such as any of the forms shown in FIG2-FIG4.

[0083] For example, as shown in Figure 7, in some embodiments, the major axis of the ellipse of the plurality of first color filter openings CF1 of the plurality of second color sub-pixels SP2 includes X orientations, where X is a positive integer greater than or equal to 2, for example, X is a positive integer greater than or equal to 4, and X is the same as or different from M.

[0084] For example, in the embodiment of Figure 7, the second color sub-pixels SP2 are arranged in two columns. In each second color sub-pixel SP2, the shape, relative position, and size of the sub-pixel opening 121 and the first color filter opening CF1 remain unchanged. That is, when a certain first color filter opening CF1 rotates in the plane, its corresponding sub-pixel opening also rotates. The orientation of the major axis of the ellipse (the first color filter opening CF1 of the second color sub-pixel SP2 is an inverted ellipse) of the first color filter openings CF1 of the multiple second color sub-pixels SP2 has X possible orientations. In the embodiment of Figure 7, X is 8, X = M, and the eight orientations are, for example, up, down, left, right, upper left, lower left, upper right, and lower right. For example, in other examples, X can also be 2, 3, 4, 5, 6, 7, or other numbers greater than 8.

[0085] For example, the angle between two adjacent orientations in the X orientations is 360° / X*Y, where Y is a positive integer less than X. For example, in the example in Figure 7, Y is 1, and the angle between two adjacent orientations in the X orientations is 360° / 8 = 45°. For example, in other examples, the angle between two adjacent orientations can also be random, that is, the X orientations can be random.

[0086] For example, in the embodiment of FIG7, the first color filter opening CF1 and the sub-pixel opening 121 of the second color sub-pixel SP2 adopt the form of FIG2. In other embodiments, the first color filter opening CF1 and the sub-pixel opening 121 of the second color sub-pixel SP2 may also adopt other forms, such as any of the forms shown in FIG2-FIG4.

[0087] For example, as shown in Figure 7, in some embodiments, the major axis of the ellipse of the plurality of first color filter openings CF1 of the plurality of third color sub-pixels SP3 includes W orientations, where W is a positive integer greater than or equal to 2, for example, W is a positive integer greater than or equal to 4, and W is the same as or different from M.

[0088] For example, in the embodiment of Figure 7, the third color sub-pixels SP3 are arranged in four columns. In each third color sub-pixel SP3, the shape, relative position, and size of the sub-pixel opening 121 and the first color filter opening CF1 remain unchanged. That is, when a certain first color filter opening CF1 rotates in the plane, its corresponding sub-pixel opening also rotates. The orientation of the major axis of the ellipse (the first color filter opening CF1 of the third color sub-pixel SP3 is an inverted ellipse) of the first color filter openings CF1 of multiple third color sub-pixels SP3 has W possible orientations. In the embodiment of Figure 7, W is 8, X = M = W, and the eight orientations are, for example, up, down, left, right, upper left, lower left, upper right, and lower right. For example, in other examples, W can also be 2, 3, 4, 5, 6, 7, or other numbers greater than 8.

[0089] For example, the angle between two adjacent orientations in the W orientations is 360° / W*Z, where Z is a positive integer less than W. For example, in the example in Figure 7, Z is 1, and the angle between two adjacent orientations in the W orientations is 360° / 8 = 45°. For example, in other examples, the angle between two adjacent orientations can also be random, that is, the X orientations can be random.

[0090] For example, in the embodiment of FIG7, the first color filter opening CF1 and the sub-pixel opening 121 of the third color sub-pixel SP3 adopt the form of FIG2. In other embodiments, the first color filter opening CF1 and the sub-pixel opening 121 of the third color sub-pixel SP3 may also adopt other forms, such as any of the forms shown in FIG2-FIG4.

[0091] For example, in the embodiment of Figure 7, the first color filter aperture CF1 and sub-pixel aperture 121 of the third color sub-pixel SP3 are smaller than the first color filter aperture CF1 and sub-pixel aperture 121 of the second color sub-pixel SP2, respectively. The first color filter aperture CF1 of the first color sub-pixel SP1 can be smaller than or equal to the first color filter aperture CF1 of the third color sub-pixel SP3, and the major axis length of the sub-pixel aperture 121 of the first color sub-pixel SP1 can be smaller than or equal to the diameter of the sub-pixel aperture 121 of the third color sub-pixel SP3. Since the lifespan of the light-emitting devices in sub-pixels of different colors is different, by designing the sub-pixel aperture corresponding to the sub-pixel with a better lifespan to be larger, the lifespan of sub-pixels of different colors can be balanced.

[0092] For example, in other embodiments, the sub-pixel openings 121 of different color sub-pixels and the first color filter opening CF1 may also adopt other size relationships, and the embodiments disclosed herein do not specifically limit this.

[0093] For example, in the embodiment of Figure 7, a first color sub-pixel SP1, a second color sub-pixel, and two third color sub-pixels form a repeating unit, and multiple repeating units are arranged in an array. For example, in the column direction, the sub-pixels in each column have the same color; for example, multiple first color sub-pixels SP1 are arranged in the same column, multiple second color sub-pixels SP2 are arranged in the same column, and multiple third color sub-pixels SP3 are arranged in the same column. In the row direction, multiple first color sub-pixels SP1 and multiple second color sub-pixels SP2 are aligned, so that multiple first color sub-pixels SP1 and multiple second color sub-pixels SP2 are alternately arranged in the same row, and multiple third color sub-pixels SP3 are arranged in the same row, and are staggered relative to multiple first color sub-pixels SP1 or multiple second color sub-pixels SP2. At this time, a first color sub-pixel SP1 and a second color sub-pixel located adjacent to each other in the same row and two adjacent third color sub-pixels in the next row can form a repeating unit. In other embodiments, multiple first color sub-pixels SP1, multiple second color sub-pixels, and multiple third color sub-pixels can also adopt other repeating arrangements.

[0094] For example, in the embodiment of Figure 7, the first color sub-pixel SP1 is a red sub-pixel, and the sub-pixel opening of the red sub-pixel is an inverted ellipse; the second color sub-pixel SP2 is a blue sub-pixel; the third color sub-pixel SP3 is a green sub-pixel; the sub-pixel openings of the blue and green sub-pixels are circular; and the first color filter opening CF1 of the red, blue, and green sub-pixels is an inverted ellipse.

[0095] For example, Figure 8 shows another schematic diagram of the arrangement of the sub-pixel openings of multiple sub-pixels and the first color filter opening in a display substrate provided in at least one embodiment of the present disclosure. The sub-pixels SP shown in Figure 8 are equivalent to a pixel unit. The display substrate is composed of multiple such pixel units. In a pixel unit, the shapes of each sub-pixel are distributed as shown in Figure 8. The pixel unit in Figure 8 is an example of the size shown. In other examples, the pixel unit may also be of other sizes, including different numbers of sub-pixels.

[0096] For example, in some embodiments, as shown in FIG8, a first color sub-pixel SP1, a second color sub-pixel, and a third color sub-pixel form a repeating unit, and multiple repeating units are arranged in an array. For example, as shown in FIG8, in the column direction, multiple first color sub-pixels SP1 and multiple third color sub-pixels SP3 are arranged in the same column and alternately arranged, and multiple second color sub-pixels SP2 are arranged in the same column, with the columns containing multiple first color sub-pixels SP1 and multiple third color sub-pixels SP3 alternating with the columns containing multiple second color sub-pixels SP2; in the row direction, multiple first color sub-pixels SP1 are located in the same row, multiple second color sub-pixels SP2 are located in the same row, and multiple third color sub-pixels SP3 are located in the same row; in the column direction, a second color sub-pixel SP2 is correspondingly set for an adjacent first color sub-pixel SP1 and a third color sub-pixel SP3, so that these three sub-pixels form a repeating unit.

[0097] For example, in the embodiment of Figure 8, the major axis of the ellipse of the plurality of first color filter openings CF1 of the plurality of first color sub-pixels SP1 includes M orientations, where M is a positive integer greater than or equal to 2, for example, M is a positive integer greater than or equal to 4. In the example of Figure 8, M is 8, and the eight orientations of the major axis of the ellipse of the plurality of first color filter openings CF1 are shown by the arrows in Figure 8, for example, the eight orientations of up, down, left, right, upper left, lower left, upper right, and lower right.

[0098] For example, in the partial sub-pixels SP shown in Figure 8, the first color sub-pixels SP1 are arranged in four rows. In each first color sub-pixel SP1, the shape, relative position, and size of the sub-pixel opening 121 and the first color filter opening CF1 remain unchanged. That is, when a certain first color filter opening CF1 rotates in the plane, its corresponding sub-pixel opening also rotates. The orientation of the major axis of the ellipse (the first color filter opening CF1 of the first color sub-pixel SP1 is an inverted ellipse) of the first color filter openings CF1 of multiple first color sub-pixels SP1 has M possible orientations, as shown by the arrows in Figure 8. For example, the angle between two adjacent orientations in the M orientations is 360° / M*N, where N is a positive integer less than M. For example, in the example in Figure 8, M is 8, and the 8 orientations are, for example, up, down, left, right, upper left, lower left, upper right, and lower right. N is 1, and the angle between two adjacent orientations in the M orientations is 360° / 8 = 45°. For example, in other examples, the angle between two adjacent orientations can also be random, that is, the M orientations can be random.

[0099] Similarly, as shown in Figure 8, the major axis of the ellipse of the multiple first color filter openings CF1 of the multiple second color sub-pixels SP2 includes X orientations, where X is a positive integer greater than or equal to 2, for example, X is a positive integer greater than or equal to 4, and X is the same as or different from M.

[0100] For example, in the embodiment of Figure 8, the second color sub-pixels SP2 are arranged in four rows. In each second color sub-pixel SP2, the shape, relative position, and size of the sub-pixel opening 121 and the first color filter opening CF1 remain unchanged. That is, when a certain first color filter opening CF1 rotates in the plane, its corresponding sub-pixel opening also rotates. The orientation of the major axis of the ellipse (the first color filter opening CF1 of the second color sub-pixel SP2 is an inverted ellipse) of the first color filter openings CF1 of the multiple second color sub-pixels SP2 has X possible orientations. In the embodiment of Figure 8, X is 8, X = M, and the eight orientations are, for example, up, down, left, right, upper left, lower left, upper right, and lower right. For example, in other examples, X can also be 2, 3, 4, 6, 7, or other numbers greater than 8.

[0101] For example, the angle between two adjacent orientations in the X orientations is 360° / X*Y, where Y is a positive integer less than X. For example, in the example in Figure 8, X is 8, Y is 1, and the angle between two adjacent orientations in the X orientations is 360° / 8 = 45°. For example, in other examples, the angle between two adjacent orientations can also be random, that is, the X orientations can be random.

[0102] For example, as shown in Figure 8, in some embodiments, the major axis of the ellipse of the plurality of first color filter openings CF1 of the plurality of third color sub-pixels SP3 includes W orientations, where W is a positive integer greater than or equal to 2, for example, W is a positive integer greater than or equal to 4, and W is the same as or different from M.

[0103] For example, in the embodiment of Figure 8, the third color sub-pixels SP3 are arranged in four rows. In each third color sub-pixel SP3, the relative position and size of the sub-pixel opening 121 and the first color filter opening CF1 remain unchanged. That is, when a certain first color filter opening CF1 rotates in the plane, its corresponding sub-pixel opening also rotates. The orientation of the major axis of the ellipse (the first color filter opening CF1 of the third color sub-pixel SP3 is an inverted ellipse) of the first color filter openings CF1 of multiple third color sub-pixels SP3 has W possible orientations. In the embodiment of Figure 7, W is 8, and X = M = W. For example, in other examples, W can also be 2, 3, 4, 5, 6, 7, or other numbers greater than 8.

[0104] For example, the angle between two adjacent orientations in the W possible orientations is 360° / W*Z, where Z is a positive integer less than W. For example, in the example in Figure 7, W is 8, Z is 1, and the angle between two adjacent orientations in the W possible orientations is 360° / 8 = 45°. For example, in other examples, the angle between two adjacent orientations can also be random, that is, the W possible orientations can be random.

[0105] For example, in the embodiment of FIG8, the first color filter aperture CF1 and sub-pixel aperture 121 of the first color sub-pixel SP1 adopt the form of FIG5, the first color filter aperture CF1 and sub-pixel aperture 121 of the second color sub-pixel SP2 adopt the form of FIG2, and the first color filter aperture CF1 and sub-pixel aperture 121 of the third color sub-pixel SP3 adopt the form of FIG2. For example, in other embodiments, the first color filter aperture CF1 and sub-pixel aperture 121 of the first color sub-pixel SP1, the second color sub-pixel SP2, and the third color sub-pixel SP3 may also adopt other forms and combinations shown in FIG2-FIG5.

[0106] For example, in some embodiments, the combination of subpixel openings of different color subpixels SP and the first color filter opening can take other forms, and the ellipse of the first color filter opening can be designed with different numbers of major axis orientations.

[0107] For example, Figure 9 shows a schematic diagram of another arrangement of the subpixel openings of multiple subpixels and the first color filter opening in a display substrate provided in at least one embodiment of the present disclosure. The subpixels SP shown in Figure 9 are equivalent to a pixel unit. The number of subpixels included in this pixel unit is greater than the number of subpixels included in the pixel unit in the embodiments of Figures 7 and 8 above. In a pixel unit shown in Figure 9, the shapes of each subpixel are distributed in the form shown in Figure 9. The pixel unit in Figure 9 is based on the size shown. In other examples, the pixel unit may also be of other sizes.

[0108] In some embodiments, as shown in FIG9, the major axis of the ellipse of the plurality of first color filter openings CF1 of the plurality of first color sub-pixels SP1 includes M orientations. For example, M is a positive integer greater than or equal to 2, for example, M is a positive integer greater than or equal to 4, for example, M is 18, and the 18 orientations of the major axis of the ellipse of the first color filter opening CF1 are shown by the arrows in FIG9. For example, in the four quadrants divided by the horizontal and vertical axes in a Cartesian coordinate system, each quadrant includes four to five orientations.

[0109] For example, in the partial sub-pixels SP shown in Figure 9, the first color sub-pixels SP1 are arranged in three columns. In each first color sub-pixel SP1, the shape, relative position, and size of the sub-pixel opening 121 and the first color filter opening CF1 remain unchanged. That is, when a certain first color filter opening CF1 rotates in the plane, its corresponding sub-pixel opening also rotates. The orientation of the major axis of the ellipse (the first color filter opening CF1 of the first color sub-pixel SP1 is a regular ellipse) of the first color filter openings CF1 of multiple first color sub-pixels SP1 has M possible orientations, as shown by the arrows in Figure 9. For example, the angle between two adjacent orientations in the M orientations is 360° / M*N, where N is a positive integer less than M. For example, in the example in Figure 9, M is 18, N is 1, and the angle between two adjacent orientations in the M orientations is 360° / 18 = 20°. For example, in other examples, the angle between two adjacent orientations can also be random, that is, the M orientations can be random.

[0110] For example, in the embodiment of FIG9, the first color filter aperture CF1 and sub-pixel aperture 121 of the first color sub-pixel SP1 adopt the form of FIG3. For example, in other embodiments, the first color filter aperture CF1 and sub-pixel aperture 121 of the first color sub-pixel SP1 may also adopt any of the forms in FIG2 and FIG4-FIG5.

[0111] Similarly, as shown in Figure 9, the major axis of the ellipse of the multiple first color filter openings CF1 of the multiple second color sub-pixels SP2 includes X orientations, where X is a positive integer greater than or equal to 2, for example, X is a positive integer greater than or equal to 4, and X is the same as or different from M.

[0112] For example, in the embodiment of Figure 9, the second color sub-pixels SP2 are arranged in three columns. Within each second color sub-pixel SP2, the shape, relative position, and size of the sub-pixel opening 121 and the first color filter opening CF1 remain unchanged. That is, when a certain first color filter opening CF1 rotates in the plane, its corresponding sub-pixel opening also rotates. The orientation of the major axis of the ellipse (the first color filter opening CF1 of the second color sub-pixel SP2 is a regular ellipse) of the first color filter openings CF1 of the multiple second color sub-pixels SP2 has X possible orientations. In the embodiment of Figure 8, X is 18, and X = M. Similarly, in the four quadrants divided by the horizontal and vertical axes in a Cartesian coordinate system, each quadrant includes four to five orientations. For example, in other examples, X can also be 2, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, or 16, or other numbers greater than 18.

[0113] For example, the angle between two adjacent orientations in the X orientations is 360° / X*Y, where Y is a positive integer less than X. For example, in the example in Figure 9, X is 18, Y is 1, and the angle between two adjacent orientations in the X orientations is 360° / 18 = 20°. For example, in other examples, the angle between two adjacent orientations can also be random, that is, the X orientations can be random.

[0114] For example, the first color filter aperture CF1 and sub-pixel aperture 121 of the second color sub-pixel SP2 adopt the form shown in Figure 4. For example, in other embodiments, the first color filter aperture CF1 and sub-pixel aperture 121 of the second color sub-pixel SP2 may also adopt any of the forms shown in Figures 2-3 and 5.

[0115] For example, as shown in Figure 9, in some embodiments, the major axis of the ellipse of the plurality of first color filter openings CF1 of the plurality of third color sub-pixels SP3 includes W orientations, where W is a positive integer greater than or equal to 2, for example, W is a positive integer greater than or equal to 4, and W is the same as or different from M.

[0116] For example, in the embodiment of Figure 9, the third color sub-pixels SP3 are arranged in six columns. Within each third color sub-pixel SP3, the shape, relative position, and size of the sub-pixel opening 121 and the first color filter opening CF1 remain unchanged. That is, when a certain first color filter opening CF1 rotates in the plane, its corresponding sub-pixel opening also rotates. The orientation of the major axis of the ellipse (the first color filter opening CF1 of the third color sub-pixel SP3 is a regular ellipse) of the first color filter openings CF1 of multiple third color sub-pixels SP3 has W possible orientations. In the embodiment of Figure 7, W is 9. For example, in the four quadrants divided by the horizontal and vertical axes in a Cartesian coordinate system, each quadrant includes two to three orientations. For example, in other examples, W can also be 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, or 16, or other numbers greater than 18.

[0117] For example, the angle between two adjacent orientations in the W possible orientations is 360° / W*Z, where Z is a positive integer less than W. For example, in the example in Figure 7, W is 9, W≠M, Z is 1, and the angle between two adjacent orientations in the W possible orientations is 360° / 9=40°. For example, in other examples, the angle between two adjacent orientations can also be random, that is, the W possible orientations can be random.

[0118] For example, the first color filter aperture CF1 and sub-pixel aperture 121 of the third color sub-pixel SP3 adopt the form shown in Figure 4. For example, in some other embodiments, the first color filter aperture CF1 and sub-pixel aperture 121 of the third color sub-pixel SP3 may also adopt any of the forms shown in Figures 2-3 and 5.

[0119] For example, in the embodiment of Figure 9, a first color sub-pixel SP1, a second color sub-pixel, and two third color sub-pixels are arranged as a repeating unit, and multiple repeating units are arranged in an array, similar to the arrangement in Figure 7. In other embodiments, multiple first color sub-pixels SP1, multiple second color sub-pixels, and multiple third color sub-pixels can also adopt other repeating arrangements.

[0120] For example, Figure 10 shows a schematic diagram of the arrangement of sub-pixel openings of multiple sub-pixels and the first color filter opening in a display substrate provided in at least one embodiment of the present disclosure. The sub-pixels SP shown in Figure 10 are equivalent to a pixel unit. The number of sub-pixels included in this pixel unit is greater than the number of sub-pixels included in the pixel unit in the embodiments of Figures 7 and 8 above. In a pixel unit shown in Figure 10, the shapes of each sub-pixel are distributed in the form shown in Figure 10. The pixel unit in Figure 10 is based on the size shown. In other examples, the pixel unit may also be of other sizes.

[0121] In some other embodiments, as shown in FIG10, a first color sub-pixel SP1, a second color sub-pixel and a third color sub-pixel are arranged as a repeating unit, and multiple repeating units are arranged in an array, which is similar to FIG8.

[0122] For example, the major axis of the ellipse of the multiple first color filter apertures CF1 of the multiple first color subpixels SP1 includes multiple orientations, such as M orientations, where M is a positive integer greater than or equal to 4. In the example of Figure 10, M is 18, and the 18 orientations of the major axis of the ellipse of the first color filter aperture CF1 are shown by the arrows in Figure 10. For example, in the four quadrants divided by the horizontal and vertical axes in a Cartesian coordinate system, each quadrant includes four to five orientations.

[0123] For example, in the partial sub-pixels SP shown in Figure 10, the first color sub-pixels SP1 are arranged in six rows. In each first color sub-pixel SP1, the shape, relative position, and size of the sub-pixel opening 121 and the first color filter opening CF1 remain unchanged. That is, when a certain first color filter opening CF1 rotates in the plane, its corresponding sub-pixel opening also rotates. The orientation of the major axis of the ellipse (the first color filter opening CF1 of the first color sub-pixel SP1 is a regular ellipse) of the first color filter openings CF1 of multiple first color sub-pixels SP1 has M possible orientations, as shown by the arrows in Figure 10. For example, the angle between two adjacent orientations in the M orientations is 360° / M*N, where N is a positive integer less than M. For example, in the example in Figure 10, M is 18, N is 1, and the angle between two adjacent orientations in the M orientations is 360° / 18 = 20°. For example, in other examples, the angle between two adjacent orientations can also be random, that is, the M orientations can be random.

[0124] Similarly, as shown in Figure 10, the major axis of the ellipse of the multiple first color filter openings CF1 of the multiple second color sub-pixels SP2 includes X orientations, where X is a positive integer greater than or equal to 2, for example, a positive integer greater than or equal to 4, and X is the same as or different from M.

[0125] For example, in the embodiment of Figure 8, the second color sub-pixels SP2 are arranged in six rows. Within each second color sub-pixel SP2, the shape, relative position, and size of the sub-pixel opening 121 and the first color filter opening CF1 remain unchanged. That is, when a certain first color filter opening CF1 rotates in the plane, its corresponding sub-pixel opening also rotates. The orientation of the major axis of the ellipse (the first color filter opening CF1 of the second color sub-pixel SP2 is a regular ellipse) of the first color filter openings CF1 of the multiple second color sub-pixels SP2 has X possible orientations. In the embodiment of Figure 10, X is 18, and X = M. For example, in a Cartesian coordinate system, each quadrant includes four to five orientations within the four quadrants divided by the horizontal and vertical axes. For example, in other examples, X can also be 2, 4, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, or other numbers greater than 18.

[0126] For example, the angle between two adjacent orientations in X orientations is 360° / X*Y, where Y is a positive integer less than X. For example, in the example in Figure 10, X is 18, Y is 1, and the angle between two adjacent orientations in X orientations is 360° / 18 = 20°. For example, in other examples, the angle between two adjacent orientations can also be random, that is, X orientations can be random.

[0127] For example, as shown in Figure 10, in some embodiments, the major axis of the ellipse of the plurality of first color filter openings CF1 of the plurality of third color sub-pixels SP3 includes W orientations, where W is a positive integer greater than or equal to 2, for example, W is a positive integer greater than or equal to 4, and W is the same as or different from M.

[0128] For example, in the embodiment of Figure 10, the third color sub-pixels SP3 are arranged in six rows. In each third color sub-pixel SP3, the shape, relative position, and size of the sub-pixel opening 121 and the first color filter opening CF1 remain unchanged. That is, when a certain first color filter opening CF1 rotates in the plane, its corresponding sub-pixel opening also rotates. The orientation of the major axis of the ellipse (the first color filter opening CF1 of the third color sub-pixel SP3 is a regular ellipse) of the first color filter openings CF1 of the multiple third color sub-pixels SP3 has W possibilities. In the embodiment of Figure 10, W is 9. For example, in other examples, W can also be 2, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 16, or other numbers greater than 18.

[0129] For example, the angle between two adjacent orientations in the W possible orientations is 360° / W*Z, where Z is a positive integer less than W. For example, in the example in Figure 7, W is 9, Z is 1, and the angle between two adjacent orientations in the W possible orientations is 360° / 9 = 40°. For example, in other examples, the angle between two adjacent orientations can also be random, that is, the W possible orientations can be random.

[0130] For example, in the embodiment of FIG10, the first color filter aperture CF1 and sub-pixel aperture 121 of the first color sub-pixel SP1 adopt the form of FIG3, the first color filter aperture CF1 and sub-pixel aperture 121 of the second color sub-pixel SP2 adopt the form of FIG4, and the first color filter aperture CF1 and sub-pixel aperture 121 of the third color sub-pixel SP3 adopt the form of FIG4. For example, in other embodiments, the first color filter aperture CF1 and sub-pixel aperture 121 of the first color sub-pixel SP1, the second color sub-pixel SP2, and the third color sub-pixel SP3 may also adopt other forms and combinations shown in any of FIG2-FIG5.

[0131] It should be noted that, for clarity, only the major axis orientation of the first color filter opening CF1 of the multiple first color sub-pixels SP1 is indicated by arrows in Figures 7-10. The major axis orientation of the first color filter opening CF1 of the multiple second color sub-pixels SP2 and the major axis orientation of the first color filter opening CF1 of the multiple third color sub-pixels SP3 can be referenced to the major axis orientation of the first color filter opening CF1 of the multiple first color sub-pixels SP1.

[0132] In the embodiments of this disclosure, by changing the shape and twisting design of the sub-pixel opening 121 and the first color filter opening CF1 of different sub-pixels (that is, rotating the major axis / minor axis of the first color filter opening CF1 at a certain angle to obtain the arrangement of the first color filter opening CF1 of different sub-pixels), the stable phase of diffracted light in the display substrate can be disrupted, thereby further improving the color separation phenomenon of the display substrate and improving the display effect of the display substrate.

[0133] For example, in some embodiments, for the sub-pixel opening 121 and the first color filter opening CF1 of the same sub-pixel, as shown in FIG11, the orthographic projection of the sub-pixel opening 121 on the substrate 110 is located inside the orthographic projection of the first color filter opening CF1 on the substrate 110. In this case, the first color filter opening CF1 is designed to extend outward from the sub-pixel opening 121.

[0134] Alternatively, for the same sub-pixel aperture 121 and the first color filter aperture CF1, as shown in FIG12, the orthographic projection of the sub-pixel aperture 121 on the substrate 110 overlaps with the orthographic projection of the first color filter aperture CF1 on the substrate 110. In this case, the first color filter aperture CF1 is designed to be at least partially recessed within the sub-pixel aperture 121. For example, in different examples, the location where the first color filter aperture CF1 is recessed within the sub-pixel aperture 121 may be one place (as shown in FIG12) or multiple places. In each sub-pixel, the area of ​​the first color filter aperture CF1 recessed within the sub-pixel aperture 121 may be the same or different.

[0135] Alternatively, for the same sub-pixel aperture 121 and the first color filter aperture CF1, as shown in Figure 13, the edge of the orthographic projection of the sub-pixel aperture 121 on the substrate 110 overlaps with the edge of the orthographic projection of the first color filter aperture CF1 on the substrate 110. In this case, the sub-pixel aperture 121 and the first color filter aperture CF1 are tangent.

[0136] For example, when the first color filter opening CF1 is recessed within the sub-pixel opening 121, it can be recessed in multiple directions or in only one direction. In other directions, the first color filter opening CF1 and the sub-pixel opening 121 can be tangent or extended.

[0137] In the embodiments shown in Figures 2-5 and 7-10 above, the orthogonal projection of the sub-pixel opening 121 on the substrate 110 is located inside the orthogonal projection of the first color filter opening CF1 on the substrate 110. In other embodiments, the designs of Figures 12 and 13 can also be used. For example, the embodiments shown in Figures 29-30 illustrate the case where the orthogonal projection of the sub-pixel opening 121 on the substrate 110 is tangent to the orthogonal projection of the first color filter opening CF1 on the substrate 110.

[0138] For example, in some embodiments, as shown in FIG1, the color filter layer 130 may further include a third color filter layer 133 located on the side of the second color filter layer 132 away from the substrate 110, the second color filter layer 132 and the third color filter layer 133 together define a plurality of second color filter openings CF2 for a plurality of sub-pixels SP; the planar shape of the plurality of second color filter openings CF2 is circular or elliptical, the elliptical shape including a regular ellipse and an inverted ellipse.

[0139] For example, in some embodiments, the third color filter layer 133 is a third color, i.e., light of the third color is transmitted. The second color filter layer 132 includes a plurality of second color filter openings CF2 defining a plurality of third color sub-pixels SP3. The third color filter layer 133 includes a plurality of second color filter openings CF2 defining a plurality of first color sub-pixels SP1 and a plurality of second color sub-pixels SP2, and is located within the plurality of first color filter openings CF1 and the plurality of second color filter openings CF2 of the plurality of third color sub-pixels SP3. The portion of the third color filter layer 133 located within the plurality of first color filter openings CF1 and the plurality of second color filter openings CF2 of the plurality of third color sub-pixels SP3 serves as the color filter structure of the plurality of third color sub-pixels SP3.

[0140] Thus, between two adjacent sub-pixels, such as between the first color filter openings CF1 of two adjacent sub-pixels, a stack of multiple color filter layers is formed. The stack of multiple color filter layers can act as a black matrix to block light.

[0141] For example, the first color filter layer 131 can be a red color filter layer, the second color filter layer 132 can be a blue color filter layer, and the third color filter layer 133 can be a green color filter layer. The three color filters are stacked sequentially. In the preparation process, the process flow is to first form the red color filter layer, then the blue color filter layer, and finally the green color filter layer. In some cases, the order of the color filters can be flexibly adjusted according to the leveling properties and process conditions of the color filters.

[0142] For example, at the sub-pixel opening position corresponding to the red sub-pixel, the second color filter layer 132 forms the first color filter opening CF1, and the third color filter layer 133 forms the second color filter opening CF2; at the sub-pixel opening position corresponding to the blue sub-pixel, the first color filter layer 131 forms the first color filter opening CF1, and the third color filter layer 133 forms the second color filter opening CF2; at the sub-pixel opening position corresponding to the green sub-pixel, the first color filter layer 131 forms the first color filter opening CF1, and the second color filter layer 132 forms the second color filter opening CF2. Thus, the first color filter layer 131, the second color filter layer 132, and the third color filter layer 133 together define the first color filter opening CF1 and the second color filter opening CF2 of different color sub-pixels.

[0143] For example, in the embodiments of Figures 7-10, for each sub-pixel SP, when a second color filter aperture CF2 is also provided, the relative arrangement of the second color filter aperture CF2 and the first color filter aperture CF1 can be analogous to the relative arrangement of the first color filter aperture CF1 and the sub-pixel aperture 121. For example, the embodiments of Figures 2-5 and Figures 14-28 can be referred to. For example, when the first color filter aperture CF1 and the sub-pixel aperture 121 are rotated, the second color filter aperture CF2 is also rotated accordingly.

[0144] For example, in some embodiments, for the same sub-pixel aperture 121, the first color filter aperture CF1, and the second color filter aperture CF2, as shown in FIG14, the orthographic projection of the first color filter aperture CF1 on the substrate 110 is located inside the orthographic projection of the second color filter aperture CF2 on the substrate 110, and the orthographic projection of the sub-pixel aperture 121 on the substrate 110 at least partially overlaps with the orthographic projection of the first color filter aperture CF1 on the substrate 110, referring to FIGS. 11-13. In the embodiment of FIG14, the orthographic projection of the sub-pixel aperture 121 on the substrate 110 is located inside the orthographic projection of the first color filter aperture CF1 on the substrate 110.

[0145] For example, in the embodiment of FIG. 14, the orthographic projection of the first color filter aperture CF1 on the substrate 110 is located inside the orthographic projection of the second color filter aperture CF2 on the substrate 110, and the edge of the orthographic projection of the first color filter aperture CF1 on the substrate 110 does not overlap with the edge of the orthographic projection of the second color filter aperture CF2 on the substrate 110; the orthographic projection of the sub-pixel aperture 121 on the substrate 110 is located inside the orthographic projection of the first color filter aperture CF1 on the substrate 110, and the edge of the orthographic projection of the sub-pixel aperture 121 on the substrate 110 does not overlap with the edge of the orthographic projection of the first color filter aperture CF1 on the substrate 110. Thus, the first color filter aperture CF1 and the second color filter aperture CF2 can fully transmit the light emitted by the light-emitting layer in the sub-pixel aperture 121, while simultaneously achieving superior technical effects such as reduced color separation.

[0146] For example, in the embodiment shown in FIG14, the sub-pixel opening 121 is circular, the first color filter opening CF1 is elliptical, and the second color filter opening CF2 is circular. In other embodiments, the sub-pixel opening 121, the first color filter opening CF1, and the second color filter opening CF2 may also adopt other combinations of shapes.

[0147] For example, Figures 15-20 show planar schematic diagrams of the first color filter opening and the second color filter opening in a display substrate provided in at least one embodiment of the present disclosure. As shown in Figures 15-20, the planar shape of the plurality of first color filter openings CF1 is elliptical, such as a regular ellipse or an inverted ellipse; the planar shape of the plurality of second color filter openings CF2 is circular or elliptical, such as a regular ellipse or an inverted ellipse. For example, by combining Figures 2-5 and Figures 29-30, the shape combination of the sub-pixel opening 121, the first color filter opening CF1, and the second color filter opening CF2 can be obtained. Of course, the embodiments of the present disclosure are not limited thereto.

[0148] For example, in the example of Figure 15, both the first color filter aperture CF1 and the second color filter aperture CF2 are inverted ellipses; in the example of Figure 16, the first color filter aperture CF1 is an inverted ellipse and the second color filter aperture CF2 is a regular ellipse; in the example of Figure 17, the first color filter aperture CF1 is an inverted ellipse and the second color filter aperture CF2 is circular; in the example of Figure 18, the first color filter aperture CF1 is a regular ellipse and the second color filter aperture CF2 is an inverted ellipse; in the example of Figure 19, both the first color filter aperture CF1 and the second color filter aperture CF2 are regular ellipses; and in the example of Figure 20, the first color filter aperture CF1 is a regular ellipse and the second color filter aperture CF2 is circular. The above combinations of the shapes of the first color filter aperture CF1 and the second color filter aperture CF2 all contribute to improving the color separation phenomenon of the display substrate and enhancing the display effect of the display substrate.

[0149] For example, in some embodiments, among multiple sub-pixels SP with the same emission color, such as multiple first-color sub-pixels SP1, multiple second-color sub-pixels SP2, or multiple third-color sub-pixels SP3, for each sub-pixel aperture 121 and first color filter aperture CF1, the geometric center of the orthographic projection of the sub-pixel aperture 121 on the substrate 110 and the geometric center of the orthographic projection of the first color filter aperture CF1 on the substrate 110 may not overlap. For example, the distance between the geometric center of the orthographic projection of the sub-pixel aperture 121 on the substrate 110 and the geometric center of the orthographic projection of the first color filter aperture CF1 on the substrate 110 is a misalignment distance, and the misalignment distances of multiple sub-pixels SP with the same emission color are not exactly the same.

[0150] For example, the embodiments in Figures 7-10 can also adopt the misalignment scheme described above while performing rotation design. That is, the relative positions of the sub-pixel opening and the first color filter opening CF1 can adopt the above misalignment design, and the design of each sub-pixel can be different.

[0151] For example, Figure 21 shows a planar schematic diagram of the sub-pixel openings and the first color filter opening of two adjacent sub-pixels in a display substrate provided by at least one embodiment of the present disclosure. In some embodiments, as shown in Figure 21, for adjacent first sub-pixels SP11 and SP12 with the same emission color, the planar shapes of the sub-pixel openings 121 of the first sub-pixel SP11 and the first color filter openings CF1 of the second sub-pixel SP12 are the same, and the planar shapes of the first color filter openings CF1 are the same. The distance between the geometric center O1 of the orthographic projection of the sub-pixel opening 121 of the first sub-pixel SP11 onto the substrate 110 and the geometric center O2 of the orthographic projection of the first color filter opening CF1 of the first sub-pixel onto the substrate 110 is the first misalignment distance A1. In the example of Figure 21, the geometric center O1 and the geometric center O2 overlap, and at this time, the first misalignment distance A1 = 0. The distance between the geometric center O1 of the orthographic projection of the sub-pixel opening 121 of the second sub-pixel SP12 onto the substrate 110 and the geometric center O2 of the orthographic projection of the first color filter opening CF1 of the second sub-pixel SP12 onto the substrate 110 is the second misalignment distance A2. The first misalignment distance A1 is different from the second misalignment distance A2.

[0152] Therefore, in adjacent sub-pixels SP with the same emission color, the relative positions of the sub-pixel opening 121 and the first color filter opening CF1 can be different. For example, multiple sub-pixels SP with the same emission color can have 2-10 relative position designs for the sub-pixel opening and the first color filter opening. Figure 21 shows two relative position designs for the sub-pixel opening and the first color filter opening as examples. If the relative position designs for the sub-pixel opening and the first color filter opening exceed 10, the size of a pixel unit will be too large, making it directly recognizable to the human eye and affecting the display effect.

[0153] For example, as shown in Figure 21, in the long axis direction, that is, in the direction of the vertical line passing through the geometric center O2 in Figure 21, the distances on the upper and lower sides of the edge of the orthogonal projection of the sub-pixel opening 121 of the first sub-pixel SP11 onto the substrate 110 and the edge of the orthogonal projection of the first color filter opening CF1 of the first sub-pixel SP11 onto the substrate 110 are b1 and b2, respectively. In the short axis direction, that is, in the direction of the horizontal line passing through the geometric center O2 in Figure 21, the distances on the upper and lower sides of the edge of the orthogonal projection of the sub-pixel opening 121 of the first sub-pixel SP11 onto the substrate 110 and the edge of the orthogonal projection of the first color filter opening CF1 of the first sub-pixel SP11 onto the substrate 110 are a1 and a2, respectively. Similarly, in the long axis direction, the distances on the upper and lower sides of the edge of the sub-pixel opening 121 of the second sub-pixel SP12 onto the substrate 110 are a1 and a2, respectively. The distances between the edge of the orthographic projection on the substrate 110 and the edge of the orthographic projection of the first color filter opening CF1 of the second sub-pixel SP12 on the substrate 110 on the upper and lower sides are b1' and b2', respectively. In the short axis direction, the distances between the edge of the orthographic projection of the sub-pixel opening 121 of the second sub-pixel SP12 on the substrate 110 and the edge of the orthographic projection of the first color filter opening CF1 of the second sub-pixel SP12 on the substrate 110 on the upper and lower sides are a1' and a2', respectively. Then a1≠a1', a2≠a2', b1≠b1', b2≠b2'; a1+a2=a1'+a2', b1+b2=b1'+b2'; or, a1≠a1', a2≠a2', b1=b1', b2=b2'; or, a1=a1', a2=a2', b1≠b1', b2≠b2'.

[0154] For example, the relative position design of the above-mentioned 2-10 seed pixel openings and the first color filter opening includes designs with different values ​​for a1 and a1', designs with different values ​​for a2 and a2', designs with different values ​​for b1 and b1', and designs with different values ​​for b2 and b2', etc.

[0155] At this point, the shape and size of the sub-pixel opening 121 of the first sub-pixel SP11 and the second sub-pixel SP12 are the same, and the shape and size of the first color filter opening CF1 of the first sub-pixel SP11 and the second sub-pixel SP12 are also the same. However, the relative position of the sub-pixel opening 121 and the first color filter opening CF1 in the first sub-pixel SP11 is different from the relative position of the sub-pixel opening 121 and the first color filter opening CF1 in the second sub-pixel SP12. By designing different relative positions of the sub-pixel opening 121 and the first color filter opening CF1 of multiple sub-pixels with the same emitted color, the stable phase of the diffracted light in the display substrate can be disrupted, thereby further improving the color separation phenomenon of the display substrate and enhancing the display effect of the display substrate.

[0156] For example, in other embodiments, among multiple sub-pixels SP with the same emission color, such as multiple first-color sub-pixels SP1, multiple second-color sub-pixels SP2, or multiple third-color sub-pixels SP3, for each sub-pixel aperture 121 and first color filter aperture CF1, the geometric center O1 of the orthogonal projection of the sub-pixel aperture 121 on the substrate 110 overlaps with the geometric center O2 of the orthogonal projection of the first color filter aperture CF1 on the substrate 110. The areas of the orthogonal projections of the sub-pixel apertures 121 of the multiple sub-pixels SP with the same emission color on the substrate 110 are not completely the same.

[0157] For example, FIG22 shows a planar schematic diagram of the sub-pixel openings and the first color filter opening of two adjacent sub-pixels in a display substrate provided in at least one embodiment of the present disclosure. In some embodiments, as shown in FIG22, for adjacent first sub-pixels SP11 and second sub-pixels SP12 with the same emission color, the planar shapes of the sub-pixel openings 121 of the first sub-pixels SP11 and the second sub-pixels SP12 are the same but the planar dimensions are different. The planar dimensions of the sub-pixel openings 121 of the second sub-pixel SP12 are larger than the planar dimensions of the sub-pixel openings 121 of the first sub-pixel SP11. The planar shapes of the first color filter openings CF1 of the first sub-pixels SP11 and the second sub-pixels SP12 are the same but the planar dimensions are different. The planar dimensions of the first color filter openings CF1 of the second sub-pixel SP12 are larger than the planar dimensions of the first color filter openings CF1 of the first sub-pixel SP11.

[0158] For example, as shown in Figure 22, a1 = a2, b1 = b2, a1' = a2', b1' = b2', a1 ≠ a1', b1 ≠ b1', a2 ≠ a2', b2 ≠ b2'; a1 + a1' = a2 + a2', b1 + b1' = b2 + b2'. Therefore, in multiple sub-pixels SP with the same emitting color, the sub-pixel opening 121 and the first color filter opening CF1 are in the same relative position, but the sizes of the sub-pixel opening 121 and the first color filter opening CF1 can be different. For example, in multiple sub-pixels SP with the same emitting color, the sub-pixel opening 121 and the first color filter opening CF1 can have 2-10 size combinations to further improve the color separation phenomenon of the display substrate and enhance the display effect. If the size combinations exceed 10, the size of a single pixel unit will be too large, making it directly recognizable to the human eye and affecting the display effect.

[0159] For example, the above 2-10 size combinations include different size designs of the sub-pixel aperture 121, different size designs of the first color filter aperture CF1, and designs that combine different sizes of the sub-pixel aperture 121 with different sizes of the first color filter aperture CF1.

[0160] For example, in some embodiments, among multiple sub-pixels SP with the same emission color, such as multiple first-color sub-pixels SP1, multiple second-color sub-pixels SP2, or multiple third-color sub-pixels SP3, for each sub-pixel aperture 121, first color filter aperture CF1, and second color filter aperture CF2, the distance between the geometric center of the orthographic projection of the sub-pixel aperture 121 on the substrate 110 and the geometric center of the orthographic projection of the first color filter aperture CF1 on the substrate 110 is a third misalignment distance. The third misalignment distances of multiple sub-pixels SP with the same emission color are not completely the same. The distance between the geometric center of the orthographic projection of the second color filter aperture CF2 on the substrate 110 and the geometric center of the orthographic projection of the first color filter aperture CF1 on the substrate 110 is a fourth misalignment distance. The fourth misalignment distances of multiple sub-pixels SP with the same emission color are not completely the same.

[0161] For example, at least one of the third misalignment distance and the fourth misalignment distance of multiple sub-pixels SP with the same emission color is not completely the same, including multiple sub-pixels SP with the same emission color having different third misalignment distances, multiple sub-pixels SP with the same emission color having different fourth misalignment distances, and multiple sub-pixels SP with the same emission color having different third misalignment distances and different fourth misalignment distances at the same time.

[0162] For example, Figure 23 shows a planar schematic diagram of the sub-pixel openings, the first color filter opening, and the second color filter opening of a plurality of sub-pixels with the same emission color in a display substrate provided in at least one embodiment of the present disclosure. In some embodiments, as shown in Figure 23, for adjacent first sub-pixels SP11, second sub-pixels SP12, third sub-pixels SP13, and fourth sub-pixels SP14 with the same emission color, the planar shape of their sub-pixel openings 121 is the same, the planar shape of the first color filter opening CF1 is the same, and the planar shape of the second color filter opening CF2 is the same, all of which are inverted ellipses as examples. However, the relative positions of the sub-pixel openings 121, the first color filter opening CF1, and the second color filter opening CF2 are different.

[0163] For example, as shown in Figure 23, in the first sub-pixel SP11, the distance between the geometric center O1 of the orthogonal projection of the sub-pixel opening 121 on the substrate 110 and the geometric center O2 of the orthogonal projection of the first color filter opening CF1 on the substrate 110 is the third misalignment distance A3. The geometric centers O1 and O2 overlap, so A3 = 0. The distance between the geometric center O3 of the orthogonal projection of the second color filter opening CF2 on the substrate 110 and the geometric center O2 of the orthogonal projection of the first color filter opening CF1 on the substrate 110 is the fourth misalignment distance A4, where A4 ≠ A3.

[0164] As shown in Figure 23, in the second sub-pixel SP12, the distance between the geometric center O1 of the orthographic projection of the sub-pixel opening 121 onto the substrate 110 and the geometric center O2 of the orthographic projection of the first color filter opening CF1 onto the substrate 110 is the third misalignment distance A3, and the distance between the geometric center O3 of the orthographic projection of the second color filter opening CF2 onto the substrate 110 and the geometric center O2 of the orthographic projection of the first color filter opening CF1 onto the substrate 110 is the fourth misalignment distance A4. The distances A3 and A4 for the first sub-pixel SP11 and the second sub-pixel SP12 are different.

[0165] As shown in Figure 23, in the third sub-pixel SP13, the geometric center O1 of the orthographic projection of sub-pixel opening 121 onto the substrate 110 overlaps with the geometric center O2 of the orthographic projection of the first color filter opening CF1 onto the substrate 110, A3 = 0. The geometric center O3 of the orthographic projection of the second color filter opening CF2 onto the substrate 110 overlaps with the geometric center O2 of the orthographic projection of the first color filter opening CF1 onto the substrate 110, A4 = 0. The first sub-pixel SP11 and the third sub-pixel SP13 have the same A3, but different A4. The second sub-pixel SP12 and the third sub-pixel SP13 have different A3 and different A4.

[0166] As shown in Figure 23, in the fourth sub-pixel SP14, the distance between the geometric center O1 of the orthographic projection of the sub-pixel opening 121 onto the substrate 110 and the geometric center O2 of the orthographic projection of the first color filter opening CF1 onto the substrate 110 is the third misalignment distance A3. The distance between the geometric center O3 of the orthographic projection of the second color filter opening CF2 onto the substrate 110 and the geometric center O2 of the orthographic projection of the first color filter opening CF1 onto the substrate 110 is the fourth misalignment distance A4. The A3 corresponding to the fourth sub-pixel SP14 is different from the A3 corresponding to the first sub-pixel SP11, the second sub-pixel SP12, and the third sub-pixel SP13, and the A4 corresponding to the fourth sub-pixel SP14 is also different from the A4 corresponding to the first sub-pixel SP11, the second sub-pixel SP12, and the third sub-pixel SP13.

[0167] Therefore, the third misalignment distance A3 of multiple sub-pixels SP with the same emission color is not exactly the same, and the fourth misalignment distance A4 of multiple sub-pixels SP with the same emission color is also not exactly the same.

[0168] For example, as shown in Figure 24, in the first sub-pixel SP11, in the long axis direction, that is, in the direction of the vertical line passing through the geometric center O2 of the first color filter opening CF1, the distances on the upper and lower sides of the edge of the orthogonal projection of the sub-pixel opening 121 on the substrate 110 and the edge of the orthogonal projection of the first color filter opening CF1 on the substrate 110 are b1 and b2, respectively. In the short axis direction, that is, in the direction of the horizontal line passing through the geometric center O2 of the first color filter opening CF1, the distances on the upper and lower sides of the edge of the orthogonal projection of the sub-pixel opening 121 on the substrate 110 and the edge of the orthogonal projection of the first color filter opening CF1 on the substrate 110 are b1 and b2, respectively. The distances on the upper and lower sides are a1 and a2, respectively. Similarly, in the long axis direction, that is, in the direction of the vertical line passing through the geometric center O3 of the second color filter opening CF2, the distances on the upper and lower sides of the edge of the orthographic projection of the second color filter opening CF2 on the substrate 110 and the edge of the orthographic projection of the first color filter opening CF1 on the substrate 110 are g1 and g2, respectively. In the short axis direction, that is, in the direction of the horizontal line passing through the geometric center O3 of the second color filter opening CF2, the distances on the upper and lower sides of the edge of the orthographic projection of the second color filter opening CF2 on the substrate 110 and the edge of the orthographic projection of the first color filter opening CF1 on the substrate 110 are c1 and c2, respectively. Then a1<a2,b1=b2,c1> c2, g1 = g2.

[0169] For example, as shown in Figure 25, in the second sub-pixel SP12, corresponding to the distances a1, a2, b1, b2, c1, c2, g1, and g2 from the corresponding positions in the first sub-pixel SP1, a1>a2, b1>b2, c1>g2, and g2, respectively, a1>a2, b1>b2, and c1>g2. <c2,g1<g2。

[0170] For example, as shown in Figure 26, in the third sub-pixel SP13, corresponding to the distances a1, a2, b1, b2, c1, c2, g1, and g2 from the corresponding positions in the first sub-pixel SP1, a1 = a2, b1 = b2, c1 = c2, and g1 = g2.

[0171] For example, as shown in Figure 27, in the fourth sub-pixel SP14, corresponding to the distances a1, a2, b1, b2, c1, c2, g1, and g2 from the corresponding positions in the first sub-pixel SP1, a1 = a2, b1 > b2, c1 > c2, g1 <g2。

[0172] Therefore, among the plurality of sub-pixels SP with the same luminescent color, the relative positions of the sub-pixel openings 121, the first color filter openings CF1 and the second color filter openings CF2 are different, which can disrupt the stable phase of diffracted light in the display substrate, thereby improving the color separation phenomenon of the display substrate and enhancing the display effect of the display substrate.

[0173] For example, FIG. 28 shows a top plan view of sub-pixel openings, first color filter openings and second color filter openings of a plurality of sub-pixels with the same luminescent color in the display substrate provided by at least one embodiment of the present disclosure. In some embodiments, as shown in FIG. 28, for adjacent first to seventh sub-pixels SP11 to SP17 with the same luminescent color, the planar shapes of the sub-pixel openings 121 are the same but the planar dimensions are not completely identical; the planar shapes of the first color filter openings CF1 are the same but the planar dimensions are not completely identical; and the planar shapes of the second color filter openings CF2 are the same but the planar dimensions are not completely identical.

[0174] For example, as shown in FIG. 28, in this example, the planar shapes of the sub-pixel opening 121, the first color filter opening CF1 and the second color filter opening CF2 are the same, and an inverted ellipse is taken as an example herein. In other embodiments, the sub-pixel opening 121, the first color filter opening CF1 and the second color filter opening CF2 can also adopt other shapes, and the shapes of the sub-pixel opening 121, the first color filter opening CF1 and the second color filter opening CF2 can be the same or different.

[0175] For example, as shown in FIG. 28, in the first sub-pixel SP11, the major axis length of the sub-pixel opening 121 is h1, the major axis length of the first color filter opening CF1 is k1, and the major axis length of the second color filter opening CF2 is l1; in the second sub-pixel SP12, the major axis length of the sub-pixel opening 121 is h2, the major axis length of the first color filter opening CF1 is k2, and the major axis length of the second color filter opening CF2 is l2, where h2=h1, k2<k1, l2=l1; in the third sub-pixel SP13, the major axis length of the sub-pixel opening 121 is h3, the major axis length of the first color filter opening CF1 is k3, and the major axis length of the second color filter opening CF2 is l3, where h3=h1, k3>k1, l3=l1.

[0176] As shown in FIG. 28, in the fourth sub-pixel SP14, the major axis length of the sub-pixel opening 121 is h4, the major axis length of the first color film opening CF1 is k4, the major axis length of the second color film opening CF2 is l4, h4=h1, k4<k1, l4<l1; in the fifth sub-pixel SP15, the major axis length of the sub-pixel opening 121 is h5, the major axis length of the first color film opening CF1 is k5, the major axis length of the second color film opening CF2 is l5, h5=h1, k5>k1, l5>l1; in the sixth sub-pixel SP16, the major axis length of the sub-pixel opening 121 is h6, the major axis length of the first color film opening CF1 is k6, the major axis length of the second color film opening CF2 is l6, h6=h1, k6<k1, l6>l1; in the seventh sub-pixel SP17, the major axis length of the sub-pixel opening 121 is h7, the major axis length of the first color film opening CF1 is k7, the major axis length of the second color film opening CF2 is l7, h7=h1, k7>k1, l7<l1.

[0177] Therefore, among the plurality of sub-pixels SP with the same luminescent color, the geometric centers of the sub-pixel opening 121, the first color film opening CF1 and the second color film opening CF2 overlap, the dimensions of the sub-pixel openings 121 of the plurality of sub-pixels SP are not completely identical, the dimensions of the first color film openings CF1 of the plurality of sub-pixels SP are not completely identical, and the dimensions of the second color film openings CF2 of the plurality of sub-pixels SP are not completely identical, so that the overall shapes of the sub-pixel opening 121, the first color film opening CF1 and the second color film opening CF2 are different, which can disrupt the stable phase of diffracted light in the display substrate, thereby improving the color separation phenomenon of the display substrate and enhancing the display effect of the display substrate.

[0178] For example, in some other embodiments, the first color film openings CF1 of the plurality of sub-pixels SP may also be circular, and the second color film openings CF2 may be elliptical, for example, regular ellipse or inverted ellipse.

[0179] In summary, in the display substrate provided by the embodiments of the present disclosure, by designing one or more of the shape, relative position, size, torsion and other aspects of the sub-pixel opening, the first color film opening (and the second color film opening) of different sub-pixels, that is, adopting a combination of one or more designs, the stable phase of diffracted light in the display substrate can be disrupted, thereby improving the color separation phenomenon of the display substrate and enhancing the display effect of the display substrate.

[0180] For example, in some embodiments, as shown in FIG1, the display substrate may further include a touch layer 150 for implementing touch functionality. For example, the touch layer 150 is located between the encapsulation layer 140 and the color filter layer 130. For example, the touch layer 150 includes a first touch layer 151 and a second touch layer 152, and may further include a first touch insulating layer 153 located on the side of the first touch layer 151 away from the substrate 110, a second touch insulating layer 154 located on the side of the second touch layer 152 away from the substrate 110, and a third touch insulating layer 155 located on the side of the first touch layer 151 close to the substrate 110. The third touch insulating layer 155 may be, for example, a buffer layer.

[0181] For example, the first touch layer 151 may include a metal mesh structure formed by multiple touch driving electrodes, and the second touch layer 152 may include a metal mesh structure formed by multiple touch sensing electrodes. The first touch layer 151 and the second touch layer 152 may be made of metal or alloy materials, such as copper, aluminum, titanium, or their alloys. The first touch insulating layer 153, the second touch insulating layer 154, and the third touch insulating layer 155 may be made of inorganic materials such as silicon oxide, silicon nitride, or silicon oxynitride.

[0182] For example, in some embodiments, as shown in FIG1, the display substrate may further include a spacer 170, which is disposed on the side of the pixel defining layer 120 away from the substrate 110, and the second electrode E2 is disposed on the side of the spacer 170 away from the substrate 110. For example, the spacer 170 can isolate the structure formed on the display substrate during the fabrication process from the mask used in the patterning process, thereby playing a role in isolation and protection. For example, the spacer 170 can be made of organic materials such as polyimide and resin.

[0183] For example, in some embodiments, as shown in FIG1, the encapsulation layer 140 is a composite encapsulation layer, which includes a stack of organic and inorganic encapsulation layers, such as a first inorganic encapsulation layer 141, an organic encapsulation layer 142, and a second inorganic encapsulation layer 143 stacked together. For example, the first inorganic encapsulation layer 141 and the second inorganic encapsulation layer 143 can be made of inorganic materials such as silicon oxide, silicon nitride, or silicon oxynitride, and the organic encapsulation layer 142 can be made of organic materials such as polyimide or resin.

[0184] For example, in embodiments of this disclosure, the substrate 110 can be a rigid substrate such as glass or quartz, or a flexible substrate such as polyimide or resin. The material of the first electrode E1 can include transparent metal oxides such as indium tin oxide (ITO), indium zinc oxide (IZO), or zinc gallium oxide (GZO), or a stack of transparent metal oxides and metals. The material of the second electrode E2 can be a metallic material such as lithium (Li), aluminum (Al), magnesium (Mg), or silver (Ag). The pixel defining layer 120 and the planarization layer 112 can be organic materials such as polyimide or resin.

[0185] The embodiments disclosed herein do not specifically limit the materials of various structures of the display substrate, nor do they limit other structures of the display substrate. For details, please refer to the related technologies.

[0186] For example, the display substrate provided in this embodiment can be various display substrates such as organic light-emitting display substrates, quantum dot light-emitting display substrates, and liquid crystal display substrates. By designing the color filter layer in various ways, the color separation phenomenon of the display substrate can be reduced or even eliminated, thereby improving the display effect of the display substrate. For example, when the display substrate is a liquid crystal display substrate, the stacking design scheme of the color filter layer can be applied.

[0187] At least one embodiment of this disclosure also provides a display device, which includes the display substrate provided in the embodiments of this disclosure. For example, the display device can be any product or component with display function, such as a mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, or navigator. The embodiments of this disclosure do not limit the specific form of the display device.

[0188] For example, the display device provided in the embodiments of this disclosure has the same technical effect as the display substrate described above, but has a better display effect.

[0189] The following points also need to be explained:

[0190] (1) The accompanying drawings of the embodiments of this disclosure only involve the structures involved in the embodiments of this disclosure, and other structures can be referred to the general design.

[0191] (2) For clarity, the thickness of layers or regions is enlarged or reduced in the drawings used to describe embodiments of the present disclosure, i.e., these drawings are not drawn to actual scale. It will be understood that when an element such as a layer, film, region or substrate is referred to as being “above” or “below” another element, the element may be “directly” located “above” or “below” the other element or there may be intermediate elements.

[0192] (3) Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0193] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. The scope of protection of this disclosure shall be determined by the scope of the claims.

Claims

1. A display substrate having a plurality of sub-pixels, and comprising: Substrate; A pixel defining layer, located on one side of the substrate, includes a plurality of sub-pixel openings for the plurality of sub-pixels; An encapsulation layer is located on the side of the pixel defining layer that is away from the substrate. as well as A color filter layer, located on the side of the encapsulation layer away from the pixel defining layer, includes a first color filter layer and a second color filter layer located on the side of the first color filter layer away from the substrate, wherein the first color filter layer and the second color filter layer together define a plurality of first color filter openings for the plurality of sub-pixels; The planar shape of the plurality of first color filter openings is elliptical.

2. The display substrate according to claim 1, wherein, The ellipse includes regular ellipse and inverted ellipse. The planar shape of the plurality of first color filter openings is either an ellipse or an inverted ellipse.

3. The display substrate according to claim 1 or 2, wherein, The plurality of sub-pixels includes a plurality of first-color sub-pixels, a plurality of second-color sub-pixels, and a plurality of third-color sub-pixels. The plurality of first-color sub-pixels are configured to emit light of a first color, the plurality of second-color sub-pixels are configured to emit light of a second color, and the plurality of third-color sub-pixels are configured to emit light of a third color. The first color filter layer has the first color, and the second color filter layer has the second color. The first color filter layer includes a plurality of first color filter openings defining the plurality of second color sub-pixels and the plurality of third color sub-pixels. The second color filter layer includes a plurality of first color filter openings defining the plurality of first color sub-pixels and located in the plurality of first color filter openings of the plurality of second color sub-pixels, wherein the plurality of first color filter openings of the plurality of first color sub-pixels expose the first color filter layer.

4. The display substrate according to claim 3, wherein, The color filter layer further includes a third color filter layer located on the side of the second color filter layer away from the substrate. The second color filter layer and the third color filter layer together define a plurality of second color filter openings for the plurality of sub-pixels; The planar shape of the plurality of second color filter openings is circular or elliptical.

5. The display substrate according to claim 4, wherein, The color of the third color filter layer is the third color. The second color filter layer includes a plurality of second color filter openings defining the plurality of third color sub-pixels. The third color filter layer includes a plurality of second color filter openings that define the plurality of first color sub-pixels and the plurality of second color sub-pixels, and is located in the plurality of first color filter openings and the plurality of second color filter openings of the plurality of third color sub-pixels.

6. The display substrate according to any one of claims 1-5, wherein, For the same sub-pixel corresponding to the sub-pixel aperture and the first color filter aperture The sub-pixel opening has a circular planar shape, and the first color filter opening has an inverted elliptical planar shape, or The sub-pixel opening has an inverted elliptical planar shape, while the first color filter opening has a regular elliptical planar shape. The sub-pixel opening has a circular planar shape, and the first color filter opening has a regular elliptical planar shape, or The planar shape of the sub-pixel opening is an inverted ellipse, and the planar shape of the first color filter opening is also an inverted ellipse. The sub-pixel opening has a planar shape that is an ellipse, and the first color filter opening has a planar shape that is an inverted ellipse, or The planar shape of the sub-pixel opening is an ellipse, and the planar shape of the first color filter opening is also an ellipse.

7. The display substrate according to claim 2, wherein, The planar shape of the multiple sub-pixel openings is circular, elliptical, or inverted elliptical.

8. The display substrate according to any one of claims 1-7, wherein, The plurality of sub-pixels includes a plurality of first-color sub-pixels, which are configured to emit light of a first color. The major axis of the ellipse of the plurality of first color filter openings of the plurality of first color sub-pixels includes M orientations, where M is a positive integer greater than or equal to 4.

9. The display substrate according to claim 8, wherein, The included angle between two adjacent orientations in the M orientations is 360° / M*N, where N is a positive integer less than M.

10. The display substrate according to claim 8 or 9, wherein, The plurality of sub-pixels also includes a plurality of second-color sub-pixels, the plurality of second-color sub-pixels being configured to emit light of a second color. The major axis of the ellipse of the plurality of first color filter openings of the plurality of second color sub-pixels includes X orientations, where X is a positive integer greater than or equal to 2, and X is the same as or different from M.

11. The display substrate according to any one of claims 1-10, wherein, For the same sub-pixel aperture, the first color filter aperture, and the second color filter aperture, The orthographic projection of the first color filter opening on the substrate lies within the orthographic projection of the second color filter opening on the substrate. The orthographic projection of the sub-pixel opening on the substrate at least partially overlaps with the orthographic projection of the first color filter opening on the substrate.

12. The display substrate according to claim 11, wherein, For the same sub-pixel aperture, the first color filter aperture, and the second color filter aperture, The orthographic projection of the first color filter opening on the substrate is located inside the orthographic projection of the second color filter opening on the substrate, and the edge of the orthographic projection of the first color filter opening on the substrate does not overlap with the edge of the orthographic projection of the second color filter opening on the substrate. The orthographic projection of the sub-pixel opening on the substrate is located inside the orthographic projection of the first color filter opening on the substrate, and the edge of the orthographic projection of the sub-pixel opening on the substrate does not overlap with the edge of the orthographic projection of the first color filter opening on the substrate.

13. The display substrate according to any one of claims 1-12, wherein, For each sub-pixel of multiple sub-pixels with the same emission color, the sub-pixel aperture and the first color filter aperture are... The distance between the geometric center of the sub-pixel opening's orthographic projection on the substrate and the geometric center of the first color filter opening's orthographic projection on the substrate is a misalignment distance. The misalignment distances of multiple sub-pixels with the same luminous color are not exactly the same.

14. The display substrate according to claim 13, wherein, For adjacent first and second sub-pixels with the same emission color, the planar shapes of the sub-pixel openings of the first and second sub-pixels are the same, and the planar shapes of the first color filter openings are also the same. The distance between the geometric center of the orthographic projection of the sub-pixel opening of the first sub-pixel onto the substrate and the geometric center of the orthographic projection of the first color filter opening of the first sub-pixel onto the substrate is the first misalignment distance. The distance between the geometric center of the orthographic projection of the sub-pixel opening of the second sub-pixel onto the substrate and the geometric center of the orthographic projection of the first color filter opening of the second sub-pixel onto the substrate is the second misalignment distance. The first misalignment distance is different from the second misalignment distance.

15. The display substrate according to any one of claims 1-14, wherein, For each sub-pixel of multiple sub-pixels with the same emission color, the sub-pixel aperture and the first color filter aperture are... The geometric center of the orthographic projection of the sub-pixel opening onto the substrate overlaps with the geometric center of the orthographic projection of the first color filter opening onto the substrate. The areas of the orthographic projections of the subpixel openings of multiple subpixels with the same emitting color onto the substrate are not exactly the same.

16. The display substrate according to claim 15, wherein, For adjacent first and second sub-pixels with the same emission color, the planar shapes of the sub-pixel openings of the first and second sub-pixels are the same but the planar dimensions are different. The planar shapes of the first color filter openings of the first and second sub-pixels are the same but the planar dimensions are different.

17. The display substrate according to claim 4 or 5, wherein, For each sub-pixel of multiple sub-pixels with the same emission color, the sub-pixel aperture, the first color filter aperture, and the second color filter aperture are... The distance between the geometric center of the orthographic projection of the sub-pixel opening onto the substrate and the geometric center of the orthographic projection of the first color filter opening onto the substrate is the third misalignment distance. The third misalignment distances of multiple sub-pixels with the same emission color are not exactly the same. The distance between the geometric center of the orthographic projection of the second color filter opening on the substrate and the geometric center of the orthographic projection of the first color filter opening on the substrate is the fourth misalignment distance. The fourth misalignment distances of multiple sub-pixels with the same luminous color are not exactly the same.

18. The display substrate according to any one of claims 1-17, further comprising: The touch layer is located between the encapsulation layer and the color filter layer.

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

Images