Display substrate, display device and manufacturing method of display substrate

Abstract

The invention provides a display substrate, a display device and a manufacturing method of the display substrate. The display substrate comprises a substrate; the sub-pixels are arranged on the substrate in an array mode, at least one sub-pixel comprises at least two light-emitting areas, the light-emitting areas of different sub-pixels are separately arranged in the first direction and the second direction, the first direction is the peep-proof direction, and the second direction is perpendicular to the first direction; and the multiple shading structures are located on the light emitting sides of the multiple sub-pixels, orthographic projections of the shading structures on the substrate extend between the adjacent light emitting areas in the second direction, and a first distance is formed between the orthographic projections of the shading structures on the substrate and the light emitting areas in the first direction.

Description

Display substrate, display device, and method for manufacturing display substrate Technical Field

[0001] The present disclosure relates to the field of display technology, and in particular to a display substrate, a display device, and a method for manufacturing the display substrate. Background Art

[0002] With the development of society, people's demand for display products in more and more application scenarios is becoming more and more extensive, and the demand for in-vehicle displays is getting higher and higher. However, the wide-angle light projected onto the reflector or front windshield will affect the driver's vision during normal driving.

[0003] Summary of the Invention

[0004] The present disclosure provides a display substrate, a display device, and a method for manufacturing the display substrate. The specific solution is as follows:

[0005] In one aspect, an embodiment of the present disclosure provides a display substrate, comprising:

[0006] substrate;

[0007] A plurality of sub-pixels are arranged in an array on the substrate, at least one of the sub-pixels includes at least two light-emitting areas, and the light-emitting areas of different sub-pixels are respectively isolated and arranged in a first direction and a second direction, the first direction is a privacy protection direction, and the second direction is perpendicular to the first direction;

[0008] A plurality of shading structures are located on the light-emitting sides of the plurality of sub-pixels, the orthographic projections of the shading structures on the base substrate extend along the second direction between adjacent light-emitting areas, and the orthographic projections of the shading structures on the base substrate have a first distance from the light-emitting areas in the first direction.

[0009] In some embodiments, in the display substrate provided by the embodiments of the present disclosure, some of the sub-pixels are divided into different numbers of light-emitting areas.

[0010] In some embodiments, in the display substrate provided by the embodiments of the present disclosure, in the sub-pixel including the plurality of light-emitting areas, the plurality of light-emitting areas of the same sub-pixel are arranged side by side in the first direction and isolated from each other.

[0011] In some embodiments, in the display substrate provided by the embodiments of the present disclosure, a row of the sub-pixels in the second direction respectively includes a plurality of the light-emitting areas of the same number;

[0012] The plurality of light-shielding structures include a plurality of first light-shielding structures, wherein the orthographic projections of the first light-shielding structures on the base substrate are continuously arranged along the second direction between the light-emitting areas of the row of sub-pixels.

[0013] In some embodiments, in the display substrate provided by the embodiments of the present disclosure, in a row of the sub-pixels in the second direction, some of the sub-pixels include the same number of multiple light-emitting areas, and the remaining sub-pixels include one light-emitting area.

[0014] The multiple shading structures include multiple second shading structures, the orthographic projections of the second shading structures on the base substrate extend along the second direction between the light-emitting areas of the portion of the sub-pixels in the row, and are disconnected in the areas where the remaining sub-pixels are located.

[0015] In some embodiments, in the above-mentioned display substrate provided by the embodiments of the present disclosure, the multiple light-shielding structures include multiple third light-shielding structures, and the orthographic projections of the third light-shielding structures on the base substrate are continuously arranged along the second direction between adjacent sub-pixels.

[0016] In some embodiments, in the display substrate provided by the embodiments of the present disclosure, the sub-pixel further includes a pixel circuit and a light-emitting element, and an insulating layer is provided between the layer where the pixel circuit is located and the layer where the light-emitting element is located;

[0017] In the same sub-pixel, the pixel circuit is electrically connected to the light-emitting element through a via hole penetrating the insulating layer; and an orthographic projection of the via hole on the base substrate is located within an orthographic projection of the third light-shielding structure on the base substrate.

[0018] In some embodiments, in the display substrate provided by the embodiments of the present disclosure, among the multiple light-emitting areas of the same sub-pixel, at least some of the light-emitting areas have substantially the same size in the first direction;

[0019] In different sub-pixels including a plurality of light-emitting areas, at least some of the light-emitting areas have substantially the same size in the first direction.

[0020] In some embodiments, in the above-mentioned display substrate provided by the embodiments of the present disclosure, the size of the light-emitting area of ​​the sub-pixel including only one light-emitting area in the first direction is larger than the size of the light-emitting area of ​​the sub-pixel including multiple light-emitting areas in the first direction.

[0021] In some embodiments, in the above-mentioned display substrate provided by the embodiments of the present disclosure, the number of the light-emitting areas of some of the sub-pixels is greater than the number of the light-emitting areas of the remaining sub-pixels, and the light-emitting colors of some of the sub-pixels are different from the light-emitting colors of the remaining sub-pixels.

[0022] In some embodiments, in the above-mentioned display substrate provided in the embodiments of the present disclosure, the multiple sub-pixels include multiple first sub-pixels, multiple second sub-pixels and multiple third sub-pixels, and the light output brightness of the first sub-pixels and the light output brightness of the second sub-pixels are respectively greater than the light output brightness of the third sub-pixels; the first sub-pixels and / or the second sub-pixels include multiple light-emitting areas, and the third sub-pixel includes one light-emitting area.

[0023] In some embodiments, in the above-mentioned display substrate provided by the embodiments of the present disclosure, one of the first sub-pixels and the second sub-pixels is alternately arranged with the third sub-pixel in the second direction, and the row where the other one is located is alternately arranged with the row where the third sub-pixel is located in the first direction.

[0024] In some embodiments, in the above-mentioned display substrate provided by the embodiments of the present disclosure, among the first sub-pixels, the second sub-pixels and the third sub-pixels, the size of the light-emitting area of ​​the first sub-pixels or the second sub-pixels in a separate row in the second direction is larger than the size of the light-emitting areas of the other two sub-pixels in the second direction.

[0025] In some embodiments, in the above-mentioned display substrate provided by the embodiments of the present disclosure, the first sub-pixels and the second sub-pixels are alternately arranged in the second direction, and the row where the first sub-pixels are located and the row where the third sub-pixels are located are alternately arranged in the first direction; or, the row where the first sub-pixels are located, the row where the second sub-pixels are located, and the row where the third sub-pixels are located are alternately and cyclically arranged in the second direction.

[0026] In some embodiments, in the above-mentioned display substrate provided by the embodiments of the present disclosure, the first sub-pixel is a red sub-pixel, the second sub-pixel is a green sub-pixel, and the third sub-pixel is a blue sub-pixel.

[0027] In some embodiments, in the above-mentioned display substrate provided by the embodiments of the present disclosure, the sub-pixel further includes an anode, and the anode is integrally arranged in the same sub-pixel.

[0028] In some embodiments, in the above-mentioned display substrate provided by the embodiment of the present disclosure, the sub-pixel further includes a light-emitting material layer located on the side of the anode away from the base substrate, and the light-emitting material layer is arranged in a disconnected manner between the multiple light-emitting intervals of the same sub-pixel.

[0029] In some embodiments, the display substrate provided in the embodiments of the present disclosure further includes a pixel defining layer located between the anode layer and the light-emitting material layer, the pixel defining layer includes a plurality of openings, and the area where the openings are located is the light-emitting area.

[0030] On the other hand, an embodiment of the present disclosure provides a display device, including the above-mentioned display substrate provided by the embodiment of the present disclosure, the display device includes an instrument panel, and the anti-peeping direction is a vertical direction.

[0031] On the other hand, an embodiment of the present disclosure provides a method for manufacturing the above-mentioned display substrate, comprising:

[0032] providing a substrate;

[0033] A plurality of sub-pixels are formed on the substrate in an array, wherein at least one of the sub-pixels includes at least two light-emitting areas, and the light-emitting areas of different sub-pixels are respectively isolated and arranged in a first direction and a second direction, wherein the first direction is a privacy-preventing direction and the second direction is perpendicular to the first direction;

[0034] A plurality of shading structures are formed on a side of the layer where the plurality of sub-pixels are located away from the base substrate, and the orthographic projections of the shading structures on the base substrate extend along the second direction between adjacent light-emitting areas, and the orthographic projections of the shading structures on the base substrate are ensured to have a first distance from the light-emitting areas in the first direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] FIG1 is a schematic structural diagram of a display substrate provided by an embodiment of the present disclosure;

[0036] FIG2 is an enlarged schematic diagram of the Z region in FIG1 ;

[0037] FIG3 is a cross-sectional view along the II' direction in FIG2;

[0038] FIG4 is a view of the anti-peep light output in the II-II' direction in FIG2;

[0039] FIG5 is a normal light emission diagram in the direction III-III' in FIG2;

[0040] FIG6 is a brightness simulation diagram of a display substrate in an A+ region provided by an embodiment of the present disclosure;

[0041] FIG7 is a brightness simulation diagram of a display substrate in area A provided by an embodiment of the present disclosure;

[0042] FIG8 is a brightness simulation diagram of a display substrate in area B according to an embodiment of the present disclosure;

[0043] FIG9 is a schematic diagram of another structure of a display substrate provided in an embodiment of the present disclosure;

[0044] FIG10 is a schematic diagram of another structure of a display substrate provided in an embodiment of the present disclosure;

[0045] FIG11 is a schematic diagram of another structure of a display substrate provided in an embodiment of the present disclosure;

[0046] FIG12 is a schematic diagram of another structure of a display substrate provided in an embodiment of the present disclosure;

[0047] FIG13 is a schematic diagram of another structure of a display substrate provided in an embodiment of the present disclosure;

[0048] FIG14 is a schematic diagram of another structure of a display substrate provided in an embodiment of the present disclosure;

[0049] FIG15 is a schematic diagram of another structure of a display substrate provided in an embodiment of the present disclosure;

[0050] FIG16 is a schematic structural diagram of a display device provided in an embodiment of the present disclosure;

[0051] FIG17 is a flowchart of manufacturing a display substrate according to an embodiment of the present disclosure.

[0052] Icon: 101-substrate; 102-sub-pixel; 1021-first sub-pixel; 1022-second sub-pixel; 1023-third sub-pixel; 103-pixel defining layer; 104-light-shielding structure; 1041-first light-shielding structure; 1042-second light-shielding structure; 1043-third light-shielding structure; 105-first electrode; 106-light-emitting functional layer; 107-encapsulation layer; 108-second electrode; 10-sub-pixel array; 20-timing controller; 30-scan driver; 40-data driver. DETAILED DESCRIPTION

[0053] To further clarify the objectives, technical solutions, and advantages of the embodiments of the present disclosure, the technical solutions of the embodiments of the present disclosure will be described clearly and completely below in conjunction with the accompanying drawings of the embodiments of the present disclosure. It should be noted that in the drawings, the thicknesses of layers, films, panels, regions, etc. are exaggerated for clarity. In this disclosure, exemplary embodiments are described with reference to cross-sectional views that are schematic representations of idealized embodiments. As such, deviations from the shapes shown in the drawings are to be expected, for example, as a result of manufacturing techniques and / or tolerances. Therefore, the embodiments described in this disclosure should not be construed as limited to the specific shapes of the regions shown in this disclosure, but rather include deviations in shape resulting from, for example, manufacturing. For example, a region illustrated or described as flat may typically have rough and / or nonlinear features; a sharp angle illustrated may be rounded, etc. Therefore, the regions shown in the drawings are schematic in nature, and their sizes and shapes are not intended to illustrate the precise shapes of the regions or reflect true scale, but are intended solely to illustrate the present disclosure. Throughout, identical or similar reference numerals denote identical or similar elements or elements having identical or similar functions. In order to keep the following description of the embodiments of the present disclosure clear and concise, the present disclosure omits detailed descriptions of known functions and known components.

[0054] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by persons of ordinary skill in the field to which the present disclosure belongs. The words "first", "second" and similar terms used in the present disclosure and the claims do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Inside", "outside", "upper", "lower" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0055] In the following description, when an element or layer is referred to as being “on” or “connected to” another element or layer, the element or layer may be directly on, directly connected to, the other element or layer, or there may be intermediate elements or intermediate layers. When an element or layer is referred to as being “disposed on one side of” another element or layer, the element or layer may be directly on, directly connected to, the other element or layer, or there may be intermediate elements or intermediate layers. However, when an element or layer is referred to as being “directly on” or “directly connected to” another element or layer, there are no intermediate elements or intermediate layers. The term “and / or” includes any and all combinations of one or more of the associated listed items.

[0056] When preventing privacy, related in-vehicle display products use an external privacy film, but this will result in low display brightness, which can easily cause visual fatigue. At the same time, in order to achieve appropriate display brightness, power consumption will often increase.

[0057] In order to solve the above technical problems existing in the related art, the present disclosure provides a display substrate, as shown in Figures 1 to 3, which may include:

[0058] The base substrate 101, in some embodiments, can be a flexible substrate or a rigid substrate. For example, the rigid substrate can include a glass substrate, a quartz substrate, etc. The flexible substrate can include a first flexible material layer, a first inorganic material layer, a semiconductor layer, a second flexible material layer, and a second inorganic material layer stacked together. The first flexible material layer and the second flexible material layer can be made of polyimide (PI), polyethylene terephthalate (PET), or a surface-treated polymer soft film. The first inorganic material layer and the second inorganic material layer can be made of silicon nitride (SiNx) or silicon oxide (SiOx) to improve the water and oxygen resistance of the base substrate. The semiconductor layer can be made of amorphous silicon (a-Si).

[0059] A plurality of sub-pixels 102 are arranged in an array on the substrate 101. Optionally, FIG1 illustrates this by taking 4*4 as an example. In some embodiments, the plurality of sub-pixels 102 may include a plurality of first sub-pixels 1021, a plurality of second sub-pixels 1022, and a plurality of third sub-pixels 1023. Optionally, the first sub-pixel 1021 is a red sub-pixel R, the second sub-pixel 1022 is a green sub-pixel G, and the third sub-pixel 1023 is a blue sub-pixel B. Of course, in other embodiments, the plurality of sub-pixels 102 may also include yellow sub-pixels, white sub-pixels, etc., which are not specifically limited here. Continuing to refer to FIG1 and FIG2 , it can be seen that at least one sub-pixel 102 includes at least two light-emitting areas E. For example, the first sub-pixel 1021 includes two light-emitting areas marked as E and a second sub-pixel 1022. R-1 and E R-2 The second sub-pixel 1022 includes two light-emitting areas E, each of which is marked as E G-1 and E G-2 The third sub-pixel 1023 includes two light-emitting areas E marked as E B Of course, in a specific implementation, the number of light-emitting areas E included in the first sub-pixel 1021, the second sub-pixel 1022, and the third sub-pixel 1023 is not limited to the above number. In some embodiments, in order to avoid light crosstalk, the light-emitting areas E of different sub-pixels 102 can be isolated and arranged in the first direction Y and the second direction X, respectively, wherein the first direction Y is the anti-peeping direction and the second direction X is perpendicular to the first direction Y; illustratively, the display substrate provided by the present disclosure can be applied to the instrument panel shown in Figure 16, which is usually located in front of the driver, and the anti-peeping direction (i.e., the first direction Y) is the vertical direction in Figure 16. In some embodiments, the light-emitting area E can be equivalent to the area where the opening K of the pixel defining layer 103 is located, and different light-emitting areas E can be separated by the pixel defining layer 103; in some embodiments, the pixel defining layer 103 can be made of organic materials such as polyimide, acrylic, polyethylene terephthalate or acrylate.

[0060] Continuing to refer to Figures 1 to 3, it can be seen that multiple shading structures 104 are located on the light-emitting side of multiple sub-pixels 102. Optionally, the shading structure 104 is made of black matrix (BM) material; in some embodiments, the orthographic projection of the light-shielding structure 104 on the base substrate 101 extends along the second direction X between adjacent light-emitting areas E. For example, the present disclosure only provides the shading structure 104 in the gap extending along the second direction X between adjacent light-emitting areas E, and does not provide the shading structure 104 in the gap extending along the first direction Y between adjacent light-emitting areas E; in some embodiments, the orthographic projection of the light-shielding structure 104 on the base substrate 101 has a first distance a from the light-emitting area E in the first direction Y, and the first distance a is positively correlated with the anti-peeping angle, so that by setting the value of the first distance a, the light-shielding structure 104 can achieve a better anti-peeping effect at a specific viewing angle (for example, ±30°).

[0061] In the display substrate provided in the embodiments of the present disclosure, by dividing at least some of the sub-pixels 102 into multiple light-emitting areas E and providing a light-shielding structure 104 between the light-emitting areas E of different sub-pixels 102 and between the light-emitting areas E of the same sub-pixel 102, the light-shielding structure 104 can achieve an anti-peeping effect in a first direction Y at a first distance a. The specific principle is shown in FIG4 . In FIG4 , a is the first distance between the light-shielding structure 104 and the light-emitting area E, and b represents the vertical height from the layer where the first electrode (e.g., the anode) 105 is located to the layer where the light-shielding structure 104 is located. Optionally, b is equal to the sum of the thicknesses of the pixel defining layer 103, the light-emitting functional layer 106, and the encapsulation layer 107, minus the thickness of the first electrode 105. At this time, the tangent value a / b of the maximum light emission direction (i.e., the anti-peeping angle θ, which can be set according to actual needs, for example, θ is ±30°) can be calculated according to the Pythagorean theorem, i.e., a / b = tanθ, or in other words, a = b*tanθ. It should be understood that in some embodiments, there may be other film layers such as a flat layer (OC) between the encapsulation layer 107 and the layer where the light-shielding structure 104 is located. In this case, the b value needs to be added with the thickness of other film layers such as the flat layer (OC). Since the thinning and lightweight display products are a development trend, a large b value is not conducive to the thin and lightweight design of display products. Therefore, the present disclosure maintains the b value in the relevant products, and the anti-peeping effect can be achieved by adjusting the a value. The inventor has verified that the anti-peeping effect is better when the first distance a is in the range of 2μm to 6μm. In some embodiments, the first distance a can be 2μm, 3μm, 4μm, 5μm, 6μm, etc. In addition, Figure 5 shows a schematic diagram of the normal light emission of the display substrate in the second direction X. Since the light-shielding structure 104 is not provided in the second direction X, the light in the second direction X is not blocked and normal large-angle light emission can be achieved.

[0062] Figure 6 is a brightness simulation diagram within the range of -10° to +10° in the first direction Y and -4° to +8° in the second direction X (i.e., zone A+). Figure 7 is a brightness simulation diagram within the range of -40° to +40° in the first direction Y and -10° to +20° in the second direction X (i.e., zone A). Figure 8 is a brightness simulation diagram within the range of -50° to +50° in the first direction Y and -10° to +20° in the second direction X (i.e., zone B). Table 1 shows the brightness values ​​of the normal viewing angle, A+ zone, A zone, and B zone in schemes 1, 2, and 3 with a fixed a value (e.g., 4 μm) and different b values ​​(specifically due to different thicknesses of the encapsulation layer). As shown in Table 1, in Scheme 1, the brightness values ​​for the normal viewing angle, A+ zone, A zone, and B zone are 1000 nit, 946 nit, 422 nit, and 312 nit, respectively. In Scheme 2, the brightness values ​​for the normal viewing angle, A+ zone, A zone, and B zone are 1000 nit, 788 nit, 301 nit, and 215 nit, respectively. In Scheme 3, the brightness values ​​for the normal viewing angle, A+ zone, A zone, and B zone are 1234 nit, 972 nit, 371 nit, and 265 nit, respectively. It can be seen that the brightness values ​​for the normal viewing angle, A+ zone, A zone, and B zone decrease in sequence in Schemes 1, 2, and 3. As the viewing angle ranges of the normal viewing angle, A+ zone, A zone, and B zone in the first direction Y increase in sequence, the brightness values ​​for the normal viewing angle, A+ zone, A zone, and B zone decrease in sequence, which is equivalent to lower brightness over a wide viewing angle range (e.g., ±50° to ±40°), achieving a good anti-peeping effect over a wide viewing angle.

[0063] Table 1

[0064] As can be seen from the above, the present disclosure achieves a good privacy protection effect in the first direction Y by disposing a light-shielding structure 104 extending along the second direction X between the light-emitting areas E and at a first distance a from the light-emitting areas E. Furthermore, since the light-shielding structure 104 extending along the first direction Y is not disposed between the light-emitting areas E, normal light emission and display are achieved in the second direction X. Based on this, the present disclosure does not require an external privacy film, thereby avoiding the problems of low display brightness, visual fatigue, and high power consumption caused by external privacy films.

[0065] In some embodiments, as shown in FIG4 , the light-emitting functional layer 106 may include, but is not limited to, a stacked hole injection layer (HIL), a hole transport layer (HTL), an emitting material layer (EML), an electron transport layer (ETL), and an electron injection layer (EIL). In other embodiments, the light-emitting functional layer 106 may further include an electron blocking layer (EBL) between the hole transport layer HTL and the emitting material layer EML, and a hole blocking layer (HBL) between the electron transport layer ETL and the emitting material layer EML. In some embodiments, the light-emitting material layer EML of each sub-pixel 102 is disconnected between different light-emitting areas E, the hole injection layer HIL of all sub-pixels 102 may be a common layer connected together, the electron injection layer EIL of all sub-pixels 102 may be a common layer connected together, the hole transport layer HTL of all sub-pixels 102 may be a common layer connected together, the electron transport layer ETL of all sub-pixels 102 may be a common layer connected together, the hole blocking layer HBL of all sub-pixels 102 may be a common layer connected together, and the electron blocking layers EBL of adjacent sub-pixels 102 may have a small amount of overlap, or may be isolated.

[0066] In some embodiments, the encapsulation layer 107 may include a first encapsulation layer, a second encapsulation layer, and a third encapsulation layer arranged in a stacked manner. The first and third encapsulation layers may be made of inorganic materials (CVD), and the second encapsulation layer may be made of organic materials (IJP). The second encapsulation layer may be arranged between the first and third encapsulation layers to ensure that external water vapor cannot enter the light-emitting functional layer 106. In other embodiments, the encapsulation layer 107 may have a stacked structure of inorganic material / organic material / inorganic material / organic material / inorganic material.

[0067] In some embodiments, in the display substrate provided by the embodiment of the present disclosure, as shown in FIG2 , among the multiple light-emitting areas E of the same sub-pixel 102, at least some of the light-emitting areas E have substantially the same size w in the first direction Y; alternatively, among the multiple light-emitting areas E of the same sub-pixel 102, all of the light-emitting areas E have substantially the same size w in the first direction Y. For example, FIG2 shows the first sub-pixel 1021 marked as E R-1 and E R-2 The two light-emitting areas E of the second sub-pixel 1022 are substantially the same in w in the first direction Y; G-1 and EG-2 The two light-emitting areas E have approximately the same w in the first direction Y. Dividing a sub-pixel 102 into multiple light-emitting areas E facilitates design and process monitoring. In some embodiments, the size w of the light-emitting area E in the first direction Y can be determined based on the privacy protection simulation results. For example, if the size w of the light-emitting area E in the first direction Y is 10 μm and simulations show a good privacy protection effect, the size w of the light-emitting area E in the first direction Y can be set to 10 μm.

[0068] In some embodiments, in the display substrate provided by the embodiment of the present disclosure, as shown in FIG2 , in different sub-pixels 102 including a plurality of light-emitting areas E, at least some of the light-emitting areas E have substantially the same size w in the first direction Y; alternatively, in different sub-pixels 102 including a plurality of light-emitting areas E, all of the light-emitting areas E have substantially the same size w in the first direction Y. For example, FIG2 shows a first sub-pixel 1021 marked as E. R-1 and E R-2 The two light-emitting areas E and the second sub-pixel 1022 marked as E G-1 and E G-2 The two light-emitting areas E have substantially the same size w in the first direction Y. By dividing different sub-pixels 102 into multiple light-emitting areas E according to certain size standards, design and process monitoring are facilitated.

[0069] It should be noted that in the embodiments provided in the present disclosure, due to the limitations of process conditions or the influence of other factors such as measurement, "approximately the same" may be completely equivalent, or there may be some deviations. Therefore, as long as the "approximately the same" relationship between the above-mentioned features satisfies the allowable error (for example, a fluctuation of 10% up and down), it falls within the scope of protection of the present disclosure.

[0070] In some embodiments, in the display substrate provided by the embodiments of the present disclosure, as shown in FIG2 , the size W of the light-emitting area E of the sub-pixel 102 including only one light-emitting area E in the first direction Y is larger than the size w of the light-emitting area E of the sub-pixel 102 including multiple light-emitting areas E in the first direction Y. As can be seen from FIG2 , the first sub-pixel 1021 has a size marked as E. R-1 and E R-2 The second sub-pixel 1022 has two light-emitting areas E, and the second sub-pixel 1022 has a light-emitting area marked as E G-1 and E G-2 The third sub-pixel 1023 has two light-emitting areas E, and the third sub-pixel 1023 has a light-emitting area marked as E B 2, the first sub-pixel 1021 and the second sub-pixel 1022 are split, and the third sub-pixel 1023 is not split. Therefore, the third sub-pixel 1023 is marked as E. B The size W of the light emitting area E in the first direction Y is larger than the size W of the first sub-pixel 1021 marked as ER-1 and E R-2 The two light-emitting areas E and the second sub-pixel 1022 marked as E G-1 and E G-2 The size w of the two light-emitting areas E in the first direction Y is .

[0071] Continuing to refer to FIG. 2 , it can be seen that in the above-mentioned display substrate provided in the embodiment of the present disclosure, the number of light-emitting areas E of some sub-pixels 102 (for example, the first sub-pixel 1021 and the second sub-pixel 1022) is greater than the number of light-emitting areas E of the remaining sub-pixels 102 (for example, the third sub-pixel 1023), and the light-emitting colors of some sub-pixels 102 (for example, the first sub-pixel 1021 and the second sub-pixel 1022) are different from the light-emitting colors of the remaining sub-pixels 102 (for example, the third sub-pixel 1023). Since the present disclosure splits the sub-pixel 102 according to a certain size (e.g., 10 μm), the size of the luminous area E of the sub-pixel 102 before the split may be different. Therefore, the number of luminous areas E in the sub-pixels 102 of different light-emitting colors after the split may be different. For example, before the split, the luminous area E of the second sub-pixel R may be larger than the luminous area E of the first sub-pixel 1021 and smaller than the luminous area E of the third sub-pixel 1023. After the split, the number of luminous areas E of the second sub-pixel R may be larger than the number of luminous areas E of the first sub-pixel 1021 and smaller than the number of luminous areas E of the third sub-pixel 1023. Alternatively, the luminous area E of the sub-pixel 102 before the split may be smaller than the splitting standard. Therefore, there is no need to split the sub-pixel 102. For example, in FIG12 , the luminous area E of the first sub-pixel 1021 before the split is marked as E. R The luminous area E of the pixel is smaller than the splitting standard, so the first sub-pixel 1021 is not split. These situations will result in different numbers of luminous areas E in the sub-pixels 102 with different light emitting colors, and the number of luminous areas E in some sub-pixels 102 (such as the first sub-pixel 1021 and the second sub-pixel 1022) will be greater than the number of luminous areas E in other sub-pixels 102 (such as the third sub-pixel 1023).

[0072] In other embodiments, the greater the light output brightness, the greater the impact of the optical beam reflected by the reflector or windshield on the driver's vision. Therefore, in the present disclosure, light output brightness can also be used as another criterion to split sub-pixels 102. For example, if the light output brightness of the first sub-pixel 1021 and the second sub-pixel 1022 are each greater than the light output brightness of the third sub-pixel 1023, the first sub-pixel 1021 and / or the second sub-pixel 1022 can be split, while the third sub-pixel 1023 is not split. This allows the first sub-pixel 1021 and / or the second sub-pixel 1022 to include multiple light-emitting areas E, while the third sub-pixel 1023 includes a single light-emitting area E. For example, in Figures 1, 9, and 11, the first sub-pixel 1021 and the second sub-pixel 1022 are split, while the third sub-pixel 1023 is not split. Furthermore, since the brightness of the third sub-pixel 1023 is relatively low, even if it is not split, the anti-peeping effect is not affected.

[0073] In some embodiments, in the display substrate provided in the embodiments of the present disclosure, the first sub-pixels 1021, the second sub-pixels 1022, and the third sub-pixels 1023 can be arranged in various arrangements. For example, in Figures 1 and 9, the first sub-pixels 1021 and the third sub-pixels 1023 can be arranged alternately in the second direction X, and the row containing the first sub-pixels 1021 and the row containing the second sub-pixels 1022 can be arranged alternately in the first direction Y, so that the first sub-pixels 1021, the second sub-pixels 1022, and the third sub-pixels 1023 are arranged in a "P" shape. For another example, in Figure 10, the first sub-pixels 1021 and the second sub-pixels 1022 are arranged alternately in the second direction X, and the row containing the first sub-pixels 1021 and the row containing the third sub-pixels 1023 can be arranged alternately in the first direction Y. In this case, the first sub-pixels 1021, the second sub-pixels 1022, and the third sub-pixels 1023 are also arranged in a "P" shape. As shown in Figures 11 and 12, the row where the first sub-pixel 1021 is located, the row where the second sub-pixel 1022 is located, and the row where the third sub-pixel 1023 is located are alternately arranged in a cyclic manner in the second direction X, so that the first sub-pixel 1021, the second sub-pixel 1022, and the third sub-pixel 1023 are arranged in parallel in the second direction X. In other embodiments, as shown in Figure 13, the second sub-pixel 1022 and the third sub-pixel 1023 may be alternately arranged in the second direction X, and the row where the first sub-pixel 1021 is located and the row where the third sub-pixel 1022 is located are alternately arranged in the first direction Y, so that the first sub-pixel 1021, the second sub-pixel 1022, and the third sub-pixel 1023 are also arranged in a triangular shape. Of course, in specific implementations, the first sub-pixel 1021, the second sub-pixel 1022, and the third sub-pixel 1023 may also be arranged in other arrangements known to those skilled in the art, which are not limited here.

[0074] It is worth noting that, in combination with FIG1, FIG2 and FIG9, the first sub-pixel 1021 and the third sub-pixel 1023 are arranged in the same row, and the second sub-pixel 1022 is arranged in a separate row, so as to facilitate setting the size L of the light-emitting area E of the second sub-pixel 1022 in the second direction X. G , which is larger than the size L of the light emitting area E of the first sub-pixel 1021 in the second direction X R , and the size L of the light emitting area E of the third sub-pixel 1023 in the second direction X B In this way, the aperture of the second sub-pixel 1022 can be maximized, reducing the impact of the aperture ratio drop caused by the splitting into multiple light-emitting areas E, thereby achieving the purpose of increasing life. For example: the size L of the light-emitting area E of the second sub-pixel 1022 in the second direction X G， smaller than the size L of the light emitting area E of the first sub-pixel 1021 in the second direction X R and the size L of the light emitting area E of the third sub-pixel 1023 in the second direction X B In some embodiments, the projections of the light-emitting area E of the second sub-pixel 1022 in the first direction Y overlap with the projections of the light-emitting area E of the first sub-pixel 1021 and the light-emitting area E of the third sub-pixel 1023 in the first direction Y, and at least a portion of the light-emitting area E of the first sub-pixel 1021 and the light-emitting area E of the third sub-pixel 1023 are exposed.

[0075] In FIG13 , the second sub-pixel 1022 and the third sub-pixel 1023 are in the same row, and the first sub-pixel 1021 is in a separate row, so as to facilitate setting the size L of the light emitting area E of the first sub-pixel 1021 in the second direction X. R , which is larger than the size L of the light emitting area E of the second sub-pixel 1022 in the second direction X G , and the size L of the light emitting area E of the third sub-pixel 1023 in the second direction X B In this way, the opening of the first sub-pixel 1022 can be maximized, reducing the decrease in aperture ratio due to its division into multiple light-emitting areas E, thereby achieving the purpose of increasing lifespan.

[0076] In some embodiments, in the display substrate provided by the embodiments of the present disclosure, as shown in FIG2 , in a sub-pixel 102 including a plurality of light-emitting areas E, the plurality of light-emitting areas E of the same sub-pixel 102 are arranged side by side in a first direction Y and isolated from each other, so as to obtain a better privacy protection effect in the first direction Y. For example, in the first sub-pixel 1021, the light-emitting areas E are respectively marked as E R-1 and E R-2 The two light-emitting areas E are arranged side by side in the first direction Y and isolated from each other; in the second sub-pixel 1022, they are marked as E G-1 and E G-2 The two light emitting areas E are arranged side by side in the first direction Y and isolated from each other.

[0077] In some embodiments, in the display substrate provided by the embodiments of the present disclosure, as shown in FIG1, FIG9 to FIG13, a row of sub-pixels 102 in the second direction X respectively include a plurality of light-emitting areas E of the same number; for example, FIG1, FIG9, FIG11 and FIG12 show that each of the second sub-pixels 1022 in a row in the second direction X includes a plurality of light-emitting areas E marked as E. G-1 and E G-2 FIG10 shows that in a row of sub-pixels 102 in the second direction X, the first sub-pixels 1021 and the second sub-pixels 1022 are alternately arranged, and each first sub-pixel 1021 includes a first sub-pixel marked as E. R-1 and E R-2 Each second sub-pixel 1022 includes two light-emitting areas E marked as E G-1 and E G-2 11 and 13 show a row of first sub-pixels 1021 in the second direction X, each of which includes a marked E R-1 and E R-2 In this case, referring to FIG1 and FIG9 to FIG13 , it can be seen that the multiple light-shielding structures 104 may include multiple first light-shielding structures 1041. The orthographic projections of the first light-shielding structures 1041 on the base substrate 101 are continuously arranged along the second direction X between the light-emitting areas E of the row of sub-pixels 102. In this way, not only can the first light-shielding structures 1041 achieve a good anti-peeping effect in the first direction Y for the light-emitting areas E within the sub-pixels 102, but the first light-shielding structures 1041 can also have a strip-shaped structure continuously arranged between the light-emitting areas E within the sub-pixels 102, which simplifies the manufacturing process.

[0078] In some embodiments, in the display substrate provided in the embodiments of the present disclosure, as shown in FIG1 , FIG9 and FIG13 , in a row of sub-pixels 102 in the second direction X, some sub-pixels 102 respectively include a plurality of light-emitting areas E of the same number, and the remaining sub-pixels 102 include one light-emitting area E; specifically, FIG1 and FIG9 show that in a row of sub-pixels 102 in the second direction X, each first sub-pixel 1021 includes a light-emitting area marked as E. R-1 and E R-2 Each third sub-pixel 1023 includes two light-emitting areas E marked as E B FIG13 shows a row of sub-pixels 102 in the second direction X, each second sub-pixel 1022 includes a light-emitting area E marked as E G-1 and E G-2 Each third sub-pixel 1023 includes two light-emitting areas E marked as E B1, 9 and 13, the plurality of light-shielding structures 104 may further include a plurality of second light-shielding structures 1042, the orthographic projections of the second light-shielding structures 1042 on the substrate 101 extending along the second direction X between the light-emitting areas E of the portion of sub-pixels 102 in the row (e.g., the first sub-pixel 1021 or the second sub-pixel 1022), so as to achieve a better anti-peeping effect in the first direction Y for the light-emitting areas E inside the portion of sub-pixels 102 (e.g., the first sub-pixel 1021 or the second sub-pixel 1022); and the presence of one light-emitting area E in the remaining sub-pixels 102 (e.g., the third sub-pixel 1023) causes the second light-shielding structure 1042 to be disconnected in the area where the remaining sub-pixels 102 (e.g., the third sub-pixel 1023) are located, that is, the second light-shielding structure 1042 does not exist in the area where the remaining sub-pixels 102 (e.g., the third sub-pixel 1023) are located.

[0079] In some embodiments, in the display substrate provided by the embodiments of the present disclosure, as shown in Figures 1 and 9 to 13 , the sub-pixels 102 are arranged in an array, and the plurality of light-shielding structures 104 include a plurality of third light-shielding structures 1043 . The orthographic projections of the third light-shielding structures 1043 on the base substrate 103 are continuously arranged along the second direction X between adjacent sub-pixels 102 . In other words, the third light-shielding structures 1043 are arranged in the gaps extending along the second direction X between the sub-pixels 102 , and the third light-shielding structures 1043 have a strip-shaped structure. This arrangement enables the third light-shielding structures 1043 to achieve a good privacy protection effect in the first direction Y for the light-emitting areas E between the sub-pixels 102 . Furthermore, the strip-shaped third light-shielding structures 1043 have a simpler pattern, facilitating a simplified manufacturing process.

[0080] It should be noted that a good privacy protection effect can be achieved when the first light-shielding structure 1041, the second light-shielding structure 1042, and the third light-shielding structure 1043 are spaced a first distance a from adjacent light-emitting areas E in the first direction Y. Therefore, in some actual products, as long as the first light-shielding structure 1041, the second light-shielding structure 1042, and the third light-shielding structure 1043 are spaced a first distance a from adjacent light-emitting areas E in the first direction Y, there is no need to specifically consider the relationship between the widths of the first light-shielding structure 1041, the second light-shielding structure 1042, and the third light-shielding structure 1043.

[0081] Exemplarily, the width of the shading structures between the same color is smaller than the width of the shading structures between different colors. For example: Figure 2 of the present disclosure shows that the width of the first shading structure 1041 is approximately equal to the width of the second shading structure 1042, and the width of the first shading structure 1041 is smaller than the width of the third shading structure 1042. For example, the width of the third shading structure 1042 is approximately equal to the sum of the widths of the first shading structure 1041 and the second shading structure 1042; however, in specific implementation, it is not limited to the above-mentioned width size relationship. In addition, in the embodiments provided in the present disclosure, due to the limitations of process conditions or the influence of other factors such as measurement, "approximately equal to" may be completely identical, or there may be some deviations. Therefore, the relationship of "approximately equal to" between the above-mentioned features falls within the scope of protection of the present disclosure as long as the error (for example, a floating of 10% above and below) is allowed.

[0082] In some embodiments, in the above-mentioned display substrate provided by the embodiment of the present disclosure, the sub-pixel 102 may further include a pixel circuit and a light-emitting element, and an insulating layer is provided between the layer where the pixel circuit is located and the layer where the light-emitting element is located; in the same sub-pixel 102, the pixel circuit is electrically connected to the light-emitting element through a via hole penetrating the insulating layer; optionally, as shown in FIG. 14 , the pixel circuit is electrically connected to the light-emitting element through a via hole penetrating the insulating layer; R 、h G 、H B The orthographic projection of the via hole on the substrate 101 is located within the orthographic projection of the third light-shielding structure 1043 on the substrate 101. It should be noted that for a sub-pixel 102, the orthographic projection of its pixel circuit on the substrate 101 may or may not overlap with the pixel circuit and the light-emitting area E. As long as the routing conditions are met, the pixel circuit can be slightly shifted arbitrarily. When a sub-pixel 102 includes multiple light-emitting areas E, the multiple light-emitting areas E of the same sub-pixel 102 are controlled by the same pixel circuit to be turned on or off simultaneously.

[0083] In some embodiments, the pixel circuit may include multiple transistors (TFTs) and at least one capacitor (C). For example, the pixel circuit may be a 3T1C structure, a 7T1C structure, a 5T1C structure, an 8T1C structure, or an 8T2C structure, etc., wherein T in the above circuit structure refers to a thin film transistor, and C refers to a capacitor. The number before T represents the number of thin film transistors in the circuit, and the number before C represents the number of capacitors in the circuit.

[0084] In some embodiments, the transistor may be a P-type transistor, an N-type transistor, a bottom-gate transistor, a top-gate transistor, a dual-gate transistor, an amorphous silicon transistor, a low-temperature polysilicon transistor, an oxide transistor, etc., without limitation herein. The materials of the gate, source, and drain of the transistor may include metals such as molybdenum (Mo), aluminum (Al), titanium (Ti), chromium (Cr), and nickel (Ni); the source and drain may be a single-layer structure or a stacked-layer structure, for example, the source and drain may be a stacked-layer structure consisting of a titanium metal layer / aluminum metal layer / titanium metal layer; the gate material may include metals such as molybdenum (Mo), aluminum (Al), titanium (Ti), chromium (Cr), and nickel (Ni), and the gate may be a single-layer structure or a stacked-layer structure, for example, the gate may be a single-layer structure consisting of a molybdenum metal layer.

[0085] The light-emitting element can be configured to emit light of corresponding brightness in response to the driving current output by the pixel circuit of the sub-pixel in which it is located. For example, the light-emitting element can be an organic light-emitting diode (OLED), which can include a stacked first pole 105 (e.g., an anode), a light-emitting functional layer 106, and a second pole 108 (e.g., a cathode). However, this embodiment is not limited to this. For example, the light-emitting element can be a micro light-emitting diode (Micro-LED), a mini diode (Mini-LED), or a quantum dot light-emitting diode (QLED).

[0086] In some embodiments, in the display substrate provided in the embodiments of the present disclosure, as shown in FIG14 , the first electrode 105 (e.g., anode) is integrally provided within the same sub-pixel 102. In other words, a sub-pixel 102 may have one or more light-emitting regions E, but a sub-pixel 102 has only one complete first electrode 105 (e.g., anode). When the same sub-pixel 102 has multiple light-emitting regions E, the multiple light-emitting regions E of the same sub-pixel 102 share the same first electrode 105 (e.g., anode). For example, in FIG14 , a second sub-pixel 1022 marked as E G_1 and E G_2 The two light emitting regions E of the second sub-pixel 1022 share the same first electrode 105 (eg, anode). In some embodiments, the second sub-pixel 1022 is labeled as E. G_1 and E G_2 The first electrode 105 (eg, anode) shared by the two light-emitting regions E is connected to the same pixel circuit, so that the same pixel circuit can be used to control the pixel marked as E. G_1 and E G_2 The two light-emitting areas E are turned on or off at the same time.

[0087] Continuing with FIG. 14 , it can be seen that in some embodiments, the lengths of the first electrodes 105 (e.g., anodes) of the first sub-pixel 1021, the second sub-pixel 1022, and the third sub-pixel 1023 in the second direction X are substantially equal. The first via hole h between the first electrode 105 (e.g., anode) of the first sub-pixel 1021 and the corresponding pixel circuit is substantially equal. R , and a second via hole h between the first electrode 105 (eg, anode) of the second sub-pixel 1022 and the corresponding pixel circuit G The orthographic projections of the third light shielding structure 1043 between the first sub-pixel 1021 and the second sub-pixel 1022 on the substrate 101 are all located within the orthographic projection of the third light shielding structure 1043 between the first sub-pixel 1021 and the second sub-pixel 1022 on the substrate 101. The orthographic projection of the third via h3 between the first electrode 105 (e.g., anode) of the third sub-pixel 1023 and the corresponding pixel circuit on the substrate 101 is located within the orthographic projection of the third light shielding structure 1043 between the third sub-pixel 1023 and the second sub-pixel 1022 on the substrate 101.

[0088] In some embodiments, in order to avoid affecting the light emission, as shown in FIG. 14 , a first via hole h may be provided. R , the second via h G The orthographic projection on the base substrate 101 is located between the area where the first sub-pixel 1021 is located and the area where the second sub-pixel 1021 is located, and the first via hole h R , the second via h G Approximately on the same straight line; optionally, the first via h R , the second via h G 、Third via h B are all arranged outside the light emitting area, and the first via hole h R , the second via h G 、Third via h B In the second direction X, they are staggered in sequence. For example, the first via hole h R With the second via h G The distance d1 is smaller than the second via h G With the third via h B In other embodiments, the first via hole h R , the second via h G 、Third via h B The overlapping areas of the projections of the corresponding light-emitting areas in the second direction X are different: for example, the first via hole h R In its corresponding mark E R Outside the light emitting area (ie the first via hole h R The corresponding mark is E R The projection of the light emitting area in the second direction X is staggered); the second via hole h G The projection in the second direction X is approximately located at the position marked E G-1、E G-2 The middle area of ​​the projection of the light emitting area in the second direction X; the third through hole h B The projection in the second direction X is approximately located at the position marked E B The edge area of ​​the projection of the light-emitting area in the second direction X.

[0089] In some embodiments, the display substrate provided in the embodiment of the present disclosure may further include, as shown in FIG15 , a timing controller 20, a data driver 40, a gate driving circuit, and a sub-pixel array 10. The gate driving circuit may include at least one driver, such as a scan driver 30. The timing controller 20, the data driver 40, and the gate driving circuit may be located in a peripheral area outside the display area of ​​the display substrate. The sub-pixel array 10 located in the display area may include a plurality of sub-pixels 102 arranged in a regular pattern. The scan driver 30 may be configured to provide a scan signal to the sub-pixel 102 along a scan line; the data driver 40 may be configured to provide a data signal to the sub-pixel 102 along a data line; and the timing controller 20 may be configured to control the scan driver 30 and the data driver 40.

[0090] In some embodiments, the timing controller 20 may provide grayscale values ​​and control signals suitable for the specifications of the data driver 40 to the data driver 40. The timing controller 20 may also provide clock signals, initial signals, and other signals suitable for the specifications of the scan driver 30 to the scan driver 30. The data driver 40 may use the grayscale values ​​and control signals received from the timing controller 20 to generate data voltages to be supplied to the data lines D1 to Dn. For example, the data driver 40 may sample grayscale values ​​using the clock signal and apply data signals corresponding to the grayscale values ​​to the data lines D1 to Dn in units of rows of sub-pixels 102. The scan driver 30 may use the clock signal, initial signals, and other signals received from the timing controller 20 to generate scan signals to be supplied to the scan lines G1 to Gm. For example, the scan driver 30 may sequentially supply scan signals having on-level pulses to the scan lines. In some embodiments, the scan driver 30 may include a shift register that sequentially transmits scan initial signals provided in the form of on-level pulses to the next stage of circuitry under the control of the clock signal to generate the scan signals. Where n and m are both natural numbers.

[0091] In some embodiments, the gate driver circuit can be directly provided on the base substrate 101. For example, the gate driver can be provided in the peripheral areas on the left and right sides of the display area. In some embodiments, the gate driver can be formed together with the sub-pixel 102 in the process of forming the sub-pixel 102. However, this embodiment does not limit the position or formation method of the gate driver. In some embodiments, the gate driver can be provided on a separate chip or printed circuit board to connect to the pads or pads formed on the base substrate 101.

[0092] In some embodiments, the data driver 40 can be provided on a separate chip or printed circuit board, and connected to the sub-pixels 102 via signal access pins provided on the base substrate 101. For example, the data driver 40 can be provided using a chip on glass, a chip on plastic, a chip on film, etc., and connected to the signal access pins on the base substrate 101. The timing controller 20 can be provided separately from the data driver 40 or integrated with the data driver 40. However, this embodiment is not limited to this.

[0093] In some embodiments, the above-mentioned display substrate provided by the embodiment of the present disclosure may also include a protective cover plate located on the side of the layer where the multiple shading structures 104 are located, away from the base substrate 101. Other essential components in the display substrate should be understood by ordinary technicians in this field, and will not be elaborated here, nor should they be regarded as limitations of the present disclosure.

[0094] Based on the same inventive concept, an embodiment of the present disclosure provides a display device, including the above-mentioned display substrate provided in the embodiment of the present disclosure. Optionally, the display device is the instrument panel shown in Figure 16, and the anti-peep direction is the vertical direction. By adopting the above-mentioned display substrate provided in the embodiment of the present disclosure, it is possible to effectively prevent the vertical wide-angle light from irradiating the front windshield, thereby avoiding the influence of reflected light on the driver's line of sight. In addition, it should be understood that the above-mentioned display device provided in the embodiment of the present disclosure can not only be the above-mentioned instrument panel, but can also be a display product such as a navigation system that may require anti-peep shading, and the present disclosure does not make any specific limitations.

[0095] In other embodiments, the display device provided by the embodiment of the present disclosure may also include, but is not limited to, components such as a network module, an interface unit, and a control chip. Optionally, the control chip is a central processing unit, a digital signal processor, a system-on-chip (SoC), etc. For example, the control chip may also include a memory, a power module, etc., and realize power supply and signal input and output functions through additionally provided wires, signal lines, etc. For example, the control chip may also include hardware circuits and computer executable codes, etc. The hardware circuit may include conventional very large scale integration (VLSI) circuits or gate arrays and existing semiconductors or other discrete components such as logic chips and transistors; the hardware circuit may also include field programmable gate arrays, programmable array logic, programmable logic devices, etc. In addition, it will be understood by those skilled in the art that the above structure does not constitute a limitation on the above display device provided by the embodiment of the present disclosure. In other words, the above display device provided by the embodiment of the present disclosure may include more or fewer of the above components, or a combination of certain components, or different component arrangements.

[0096] Based on the same inventive concept, an embodiment of the present disclosure provides a method for manufacturing the above-mentioned display substrate, as shown in FIG17 , which may include the following steps:

[0097] S1701, providing a substrate;

[0098] S1702, forming a plurality of sub-pixels arranged in an array on a base substrate, wherein at least one sub-pixel includes at least two light-emitting regions, and the light-emitting regions of different sub-pixels are respectively isolated and arranged in a first direction and a second direction, wherein the first direction is a privacy protection direction, and the second direction is perpendicular to the first direction;

[0099] In some embodiments, the pixel definition layer opening corresponding to one sub-pixel may be split into at least two sub-openings, and the light-emitting material layer in one sub-pixel may be disconnected at a gap between the sub-openings of the pixel definition layer, thereby forming at least two light-emitting areas within the sub-openings of the pixel definition layer.

[0100] S1703. Form a plurality of shading structures on a side of the layer where the plurality of sub-pixels are located away from the base substrate, and make the orthographic projection of the shading structure on the base substrate extend along the second direction between adjacent light-emitting areas, and ensure that the orthographic projection of the shading structure on the base substrate has a first distance from the light-emitting area in the first direction.

[0101] It should be noted that in the above-mentioned manufacturing method provided in the embodiment of the present invention, the patterning process involved in forming each layer structure may include not only part or all of the process steps such as deposition, photoresist coating, masking, exposure, development, etching, photoresist stripping, etc., but may also include other process steps, which are subject to the formation of the desired patterned pattern in the actual manufacturing process and are not limited here. For example, a post-baking process may be included after development and before etching. The deposition process may be chemical vapor deposition, plasma enhanced chemical vapor deposition or physical vapor deposition, which are not limited here; the mask used in the masking process may be a half-tone mask, a single slit diffraction mask or a gray tone mask, which are not limited here; and the etching may be dry etching or wet etching, which are not limited here.

[0102] Although the preferred embodiments of the present disclosure have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present disclosure.

[0103] Obviously, those skilled in the art may make various changes and modifications to the embodiments of the present disclosure without departing from the spirit and scope of the embodiments of the present disclosure. Thus, if such changes and modifications of the embodiments of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is intended to include such changes and modifications.

Claims

1. A display substrate, wherein: include: substrate substrate; A plurality of sub-pixels are arranged in an array on the substrate, at least one of the sub-pixels comprises at least two light-emitting areas, and the light-emitting areas of different sub-pixels are respectively isolated and arranged in a first direction and a second direction, the first direction is a peek-proof direction, and the second direction is perpendicular to the first direction; A plurality of shading structures are located at the light-emitting sides of the plurality of sub-pixels, the orthographic projections of the shading structures on the base substrate extend along the second direction between adjacent light-emitting areas, and the orthographic projections of the shading structures on the base substrate have a first distance from the light-emitting areas in the first direction.

2. The display substrate according to claim 1, wherein: The number of the light-emitting areas divided into some of the sub-pixels is different.

3. The display substrate according to claim 1 or 2, wherein: In the sub-pixel including the plurality of light-emitting regions, the plurality of light-emitting regions of the same sub-pixel are arranged side by side in the first direction and isolated from each other.

4. The display substrate according to any one of claims 1 to 3, wherein: A row of the sub-pixels in the second direction respectively includes a plurality of the light-emitting areas of the same number; The plurality of light-shielding structures include a plurality of first light-shielding structures, and the orthographic projections of the first light-shielding structures on the base substrate are continuously arranged along the second direction between the light-emitting areas of the row of sub-pixels.

5. The display substrate according to any one of claims 1 to 3, wherein: In a row of the sub-pixels in the second direction, some of the sub-pixels include a plurality of the light-emitting areas of the same number, and the remaining sub-pixels include one light-emitting area; The plurality of shading structures include a plurality of second shading structures, the orthographic projections of the second shading structures on the base substrate extending along the second direction between the light emitting areas of the portion of the sub-pixels in the row, and being disconnected in areas where the remaining sub-pixels are located.

6. The display substrate according to any one of claims 1 to 5, wherein: The plurality of light-shielding structures include a plurality of third light-shielding structures, and the orthographic projections of the third light-shielding structures on the base substrate are continuously arranged along the second direction between adjacent sub-pixels.

7. The display substrate according to claim 6, wherein: The sub-pixel further includes a pixel circuit and a light-emitting element, and an insulating layer is provided between the layer where the pixel circuit is located and the layer where the light-emitting element is located; In the same sub-pixel, the pixel circuit is electrically connected to the light-emitting element through a via hole penetrating the insulating layer; The orthographic projection of the via hole on the base substrate is located within the orthographic projection of the third light shielding structure on the base substrate.

8. The display substrate according to any one of claims 1 to 7, wherein: Among the plurality of light-emitting areas of the same sub-pixel, at least some of the light-emitting areas have substantially the same size in the first direction; In different sub-pixels including a plurality of the light-emitting areas, sizes of at least some of the light-emitting areas in the first direction are substantially the same.

9. The display substrate according to any one of claims 1 to 8, wherein: A size of the light emitting area of ​​the sub-pixel including only one light emitting area in the first direction is greater than a size of the light emitting area of ​​the sub-pixel including a plurality of light emitting areas in the first direction.

10. The display substrate according to any one of claims 1 to 9, wherein: The number of the light-emitting areas of some of the sub-pixels is greater than the number of the light-emitting areas of the remaining sub-pixels, and the light-emitting colors of the some of the sub-pixels are different from the light-emitting colors of the remaining sub-pixels.

11. The display substrate according to claim 10, wherein: The multiple sub-pixels include multiple first sub-pixels, multiple second sub-pixels and multiple third sub-pixels, the light output brightness of the first sub-pixels and the light output brightness of the second sub-pixels are respectively greater than the light output brightness of the third sub-pixels; the first sub-pixel and / or the second sub-pixel include multiple light-emitting areas, and the third sub-pixel includes one light-emitting area.

12. The display substrate according to claim 11, wherein: One of the first sub-pixels and the second sub-pixels is alternately arranged with the third sub-pixel in the second direction, and the other sub-pixel is located in a row alternately arranged with the row where the third sub-pixel is located in the first direction.

13. The display substrate according to claim 12, wherein: Among the first sub-pixel, the second sub-pixel and the third sub-pixel, the size of the light-emitting area of ​​the first sub-pixel or the second sub-pixel in a single row in the second direction is greater than the size of the light-emitting area of ​​the other two sub-pixels in the second direction.

14. The display substrate according to claim 11, wherein: The first sub-pixels and the second sub-pixels are arranged alternately in the second direction, and the row where the first sub-pixels are located and the row where the third sub-pixels are located are arranged alternately in the first direction; or, the row where the first sub-pixels are located, the row where the second sub-pixels are located, and the row where the third sub-pixels are located are arranged alternately and cyclically in the second direction.

15. The display substrate according to any one of claims 11 to 14, wherein: The first sub-pixel is a red sub-pixel, the second sub-pixel is a green sub-pixel, and the third sub-pixel is a blue sub-pixel.

16. The display substrate according to any one of claims 1 to 15, wherein: The sub-pixel further includes an anode, and the anode is integrally arranged in the same sub-pixel.

17. The display substrate according to claim 16, wherein: The sub-pixel further includes a light-emitting material layer located on a side of the anode away from the base substrate, and the light-emitting material layer is disposed in a disconnected manner between the plurality of light-emitting zones of the same sub-pixel.

18. The display substrate according to claim 17, wherein: It also includes a pixel definition layer located between the layer where the anode is located and the light-emitting material layer. The pixel definition layer includes a plurality of openings, and the area where the openings are located is the light-emitting area.

19. A display device, wherein: It comprises the display substrate as described in any one of claims 1 to 18, the display device comprises an instrument panel, and the anti-peeping direction is a vertical direction.

20. A method for manufacturing a display substrate, wherein: include: providing a substrate base plate; A plurality of sub-pixels arranged in an array are formed on the substrate, at least one of the sub-pixels includes at least two light-emitting areas, and the light-emitting areas of different sub-pixels are respectively isolated and arranged in a first direction and a second direction, the first direction is a peek-proof direction, and the second direction is perpendicular to the first direction; A plurality of light shielding structures are formed on a side of the layer where the plurality of sub-pixels are located away from the substrate, and The orthographic projection of the shading structure on the base substrate extends between adjacent light-emitting areas along the second direction, and ensures that the orthographic projection of the shading structure on the base substrate has a first distance from the light-emitting area in the first direction.

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