Display substrate and display apparatus
By setting auxiliary holes in the light-shielding layer and the housing structure layer, the problem of vertical dark stripes caused by optical interference in the OLED display substrate was solved, thus improving the display effect.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- BOE TECHNOLOGY GROUP CO LTD
- Filing Date
- 2026-01-04
- Publication Date
- 2026-07-23
AI Technical Summary
In existing OLED display substrates, the similar patterns of the accommodating structural layer and the light-shielding layer cause optical interference, resulting in vertical dark stripe problems.
Auxiliary holes are set on the light-shielding layer and the housing structure layer to ensure that their patterns are inconsistent and reduce optical interference.
It effectively reduces stripe problems caused by optical interference and improves display quality.
Smart Images
Figure CN2026070167_23072026_PF_FP_ABST
Abstract
Description
Display substrate and display device Technical Field
[0001] This disclosure relates to the field of display technology, and more specifically to a display substrate and a display device. Background Technology
[0002] Organic light-emitting diodes (OLEDs) are hailed as the next generation of display devices due to their advantages such as self-illumination, high efficiency, vibrant colors, thinness, energy saving, and flexibility, and have attracted increasing attention in recent years.
[0003] OLED display panels typically include a driving backplane and multiple light-emitting devices located on one side of the driving backplane, with the light-emitting devices emitting a variety of colors. In some products, a color filter with the same color as the light-emitting devices can also be provided on the side of the light-emitting devices away from the driving backplane. Summary of the Invention
[0004] This disclosure aims to solve at least one of the technical problems existing in the prior art, and proposes a display substrate and a display device.
[0005] This disclosure provides a display substrate, including:
[0006] Substrate;
[0007] Multiple light-emitting devices disposed on the substrate;
[0008] A receiving structure layer is disposed on the side of the plurality of light-emitting devices away from the substrate, and has a plurality of receiving openings, wherein the orthographic projection of the receiving openings on the substrate overlaps with the orthographic projection of the light-emitting devices on the substrate;
[0009] A light-shielding layer is located on the side of the receiving structure layer away from the substrate, and has a plurality of light-transmitting holes, the orthogonal projection of the light-transmitting holes on the substrate covering the orthogonal projection of the receiving opening on the substrate;
[0010] A plurality of color filters, at least a portion of which are located in the receiving opening;
[0011] Wherein, the light-shielding layer has a first auxiliary hole, and the orthographic projection of the first auxiliary hole on the substrate is located within the orthographic projection range of the accommodating structure layer on the substrate; and / or,
[0012] The accommodating structure layer has a second auxiliary hole, and the orthographic projection of the second auxiliary hole on the substrate is within the orthographic projection range of the light-transmitting hole on the substrate.
[0013] In some embodiments, the light-shielding layer has a first auxiliary hole, and the orthographic projection of the first auxiliary hole on the substrate is located within the orthographic projection range of the color filter on the substrate.
[0014] In some embodiments, the plurality of color filters include a plurality of first color filters, a plurality of second color filters, and a plurality of third color filters; the transmittance of the first color filters and the second color filters is less than the transmittance of the third color filters;
[0015] The orthographic projection of the first auxiliary hole on the substrate is located within the orthographic projection range of the first color filter or the second color filter on the substrate.
[0016] In some embodiments, the colors of the plurality of color filters include multiple colors, and a first auxiliary hole is provided around each light-transmitting hole corresponding to at least one color of the color filter.
[0017] In some embodiments, the plurality of color filters include a plurality of first color filters, a plurality of second color filters, and a plurality of third color filters; the plurality of third color filters are connected to form a single structure.
[0018] In some embodiments, the light-shielding layer has a plurality of first auxiliary holes, each of which corresponds to a light-transmitting hole, and the first auxiliary holes and the corresponding light-transmitting holes are arranged along a first direction.
[0019] In some embodiments, the light-shielding layer has a plurality of first auxiliary holes, each of which corresponds to a light-transmitting hole. A portion of the first auxiliary holes and their corresponding light-transmitting holes are arranged along a first direction, and another portion of the first auxiliary holes and their corresponding light-transmitting holes are arranged along a second direction, wherein the first direction and the second direction intersect.
[0020] In some embodiments, the plurality of light-transmitting holes are arranged in multiple rows along a third direction and in multiple columns along a fourth direction, wherein the third direction is perpendicular to the fourth direction;
[0021] The plurality of first auxiliary holes are divided into a plurality of auxiliary hole groups. Each auxiliary hole group includes M+N first auxiliary holes arranged sequentially along the fourth direction, where M and N are both positive integers. In the same auxiliary hole group, M first auxiliary holes and corresponding light-transmitting holes are arranged along the first direction, and the remaining N first auxiliary holes and corresponding light-transmitting holes are arranged along the second direction, wherein the first direction and the second direction intersect.
[0022] In some embodiments, M = N;
[0023] The first direction and the third direction have a first angle, and the second direction and the third direction have a second angle, wherein the first angle and the second angle are equal.
[0024] In some embodiments, the light-shielding layer has a plurality of first auxiliary holes, which are divided into a plurality of auxiliary hole groups. Each auxiliary hole group corresponds to one light-transmitting hole, and the auxiliary hole group includes at least two auxiliary holes located around the corresponding light-transmitting hole.
[0025] In some embodiments, the auxiliary hole group includes two first auxiliary holes, one of which is arranged with a corresponding light-transmitting hole along a first direction, and the other of which is arranged with a corresponding light-transmitting hole along a second direction, wherein the first direction and the second direction intersect.
[0026] In some embodiments, the plurality of light-transmitting holes are arranged in multiple rows along a third direction and in multiple columns along a fourth direction, wherein the third direction is perpendicular to the fourth direction;
[0027] The first direction and the third direction have a first angle, and the second direction and the third direction have a second angle, wherein the first angle and the second angle are equal.
[0028] In some embodiments, the orthographic projections of the pixel opening and the light-transmitting aperture on the substrate are both circular.
[0029] The light-shielding layer has a first auxiliary hole. The orthogonal projection of the first auxiliary hole on the substrate has a first arc-shaped edge facing the light-transmitting hole and a second arc-shaped edge away from the light-transmitting hole. The first arc-shaped edge and the second arc-shaped edge are curved in the same direction, and their radii of curvature are equal to the radii of curvature of the light-transmitting hole.
[0030] In some embodiments, the light-shielding layer has a first auxiliary hole, and the orthographic projection of the pixel opening, the light-transmitting hole, and the first auxiliary hole on the substrate is all circular.
[0031] In some embodiments, the light-shielding layer has a first auxiliary hole.
[0032] The distance between the first auxiliary hole and the light-transmitting hole is between 3 and 5 micrometers; and / or, the first auxiliary hole has a first width in the radial direction of the light-transmitting hole, the first width being between 3 and 8 micrometers.
[0033] In some embodiments, the refractive index of the accommodating structural layer is less than the refractive index of the color filter.
[0034] This disclosure also provides a display device, which includes the display substrate described above. Attached Figure Description
[0035] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:
[0036] Figure 1 is a schematic diagram of a display substrate provided in some embodiments.
[0037] Figure 2 is a plan view of the color filter and light-shielding layer of the display substrate shown in Figure 1.
[0038] Figure 3 is a schematic diagram of a display substrate provided in some embodiments of this disclosure.
[0039] Figure 4 is a schematic diagram of a display substrate provided in some other embodiments of this disclosure.
[0040] Figure 5 is a schematic diagram of the light-shielding layer, the accommodating structure layer, and the color filter provided in the first example of this disclosure.
[0041] Figure 6 is a schematic diagram showing the positional relationship between the light-transmitting hole, the first auxiliary hole, the receiving opening, and the color filter provided in the first example of this disclosure.
[0042] Figure 7 is a partial schematic diagram of Figure 6.
[0043] Figure 8 is a schematic diagram showing the positional relationship between the light-transmitting hole, the first auxiliary hole, the receiving opening, and the color filter provided in the second example of this disclosure.
[0044] Figure 9 is a partial schematic diagram of Figure 8.
[0045] Figure 10 is a schematic diagram showing the positional relationship between the light-transmitting hole, the first auxiliary hole, the receiving opening, and the color filter provided in the third example of this disclosure.
[0046] Figure 11 is a partial schematic diagram of Figure 10.
[0047] Figure 12 is a schematic diagram showing the positional relationship between the light-transmitting hole, the first auxiliary hole, the receiving opening, and the color filter provided in the fourth example of this disclosure.
[0048] Figure 13 is a partial schematic diagram of Figure 12.
[0049] Figure 14 is a schematic diagram showing the positional relationship between the light-transmitting hole, the first auxiliary hole, the receiving opening, and the color filter provided in the fifth example of this disclosure.
[0050] Figure 15 is a partial schematic diagram of Figure 14.
[0051] Figure 16 is a schematic diagram showing the positional relationship between the light-transmitting hole, the first auxiliary hole, the receiving opening, and the color filter provided in the sixth example of this disclosure.
[0052] Figure 17 is a partial schematic diagram of Figure 16.
[0053] Figure 18 is a schematic diagram showing the positional relationship between the light-transmitting hole, the first auxiliary hole, the receiving opening, and the color filter provided in the seventh example of this disclosure.
[0054] Figure 19 is a partial schematic diagram of Figure 18.
[0055] Figure 20 is a schematic diagram showing the positional relationship between the light-transmitting hole, the first auxiliary hole, the receiving opening 41, and the color filter provided in the eighth example of this disclosure.
[0056] Figure 21 is a schematic diagram showing the positional relationship between the light-transmitting hole, the first auxiliary hole, the receiving opening, and the color filter provided in the ninth example of this disclosure.
[0057] Figure 22 is a schematic diagram showing the positional relationship between the light-transmitting hole, the first auxiliary hole, the receiving opening, and the color filter provided in the tenth example of this disclosure.
[0058] Figure 23 is a schematic diagram of the driving backplane, light-emitting device and encapsulation layer provided in some embodiments of this disclosure. Detailed Implementation
[0059] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.
[0060] 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.
[0061] Unless otherwise defined, the technical or scientific terms used in the embodiments of this disclosure should 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. Similarly, 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; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0062] As used herein, “parallel” and “perpendicular” include the described situation and situations that are similar to the described situation, within an acceptable range of deviation, which is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, “parallel” includes absolute parallelism and approximate parallelism, where an acceptable range of deviation for approximate parallelism may be, for example, within 5°; “perpendicular” includes absolute perpendicularity and approximate perpendicularity, where an acceptable range of deviation for approximate perpendicularity may also be, for example, within 5°.
[0063] It should be understood that when a layer or element is referred to as being on another layer or substrate, it can mean that the layer or element is directly on another layer or substrate, or that there is an intermediate layer between the layer or element and another layer or substrate.
[0064] This document describes exemplary embodiments with reference to sectional views and / or plan views, which are idealized exemplary drawings. In the drawings, the thickness of layers and regions is enlarged for clarity. Therefore, variations in shape relative to the drawings are contemplated due to, for example, manufacturing techniques and / or tolerances. Therefore, exemplary embodiments should not be construed as limited to the shapes of the regions shown herein, but rather include shape deviations due to, for example, manufacturing processes. Thus, the regions shown in the drawings are schematic in nature, and their shapes are not intended to show the actual shapes of the regions of the device, nor are they intended to limit the scope of the exemplary embodiments.
[0065] Figure 1 is a schematic diagram of a display substrate provided in some embodiments, and Figure 2 is a plan view of the color filter section 50 and the light-shielding layer BM of the display substrate shown in Figure 1. As shown in Figures 1 and 2, the display substrate includes: a driving backplate, a plurality of light-emitting devices 20 disposed on the driving backplate, and a color filter section 50 located on the side of the light-emitting devices 20 away from the driving backplate. The light-emitting colors of the plurality of light-emitting devices 20 include multiple colors, such as red, green, and blue. The color of the color filter section 50 is the same as the light-emitting color of the corresponding light-emitting device 20, which is beneficial to improving the color gamut of the display substrate.
[0066] In Figure 1, the driving backplane includes a substrate 11 and a driving circuit layer 12 disposed on the substrate 11. The driving circuit layer 12 includes pixel circuitry for providing driving signals to the light-emitting devices 20. A pixel defining layer (PDL) is disposed on the side of the driving circuit layer 12 away from the substrate 11. The pixel defining layer (PDL) has multiple pixel openings, and at least a portion of the light-emitting devices 20 is located in the pixel openings. An encapsulation layer 30 is located on the side of the multiple light-emitting devices 20 away from the substrate 11 and is used to encapsulate the multiple light-emitting devices 20. A receiving structure layer 40 is located on the side of the encapsulation layer away from the substrate 11 and has multiple receiving openings 41, and at least a portion of the color filter portion 50 is located in the receiving openings 41. A light-shielding layer BM is located on the side of the receiving structure layer 40 away from the substrate 11 and has multiple light-transmitting holes V1. The orthographic projection of the light-shielding layer BM on the substrate 11 is within the orthographic projection range of the receiving structure layer 40 on the substrate 11, and the orthographic projection of the light-transmitting holes V1 on the substrate 11 covers the orthographic projection of the receiving openings 41 on the substrate 11. By setting a light-shielding layer BM, crosstalk of the emitted light from the light-emitting device 20 can be prevented.
[0067] The inventors discovered that because the patterns on the receiving structure layer 40 and the light-shielding layer BM are very similar, that is, the arrangement and shape of the receiving opening 41 and the light-transmitting hole V1 are the same, the receiving structure layer 40 and the light-shielding layer BM are prone to optical interference with ambient light. For example, in the process of manufacturing the light-shielding layer BM, the light-shielding material layer is first coated vertically and then patterned. In this case, vertical dark stripes will appear on the display substrate when it is not displayed.
[0068] To solve the above-mentioned technical problems, this disclosure provides a display substrate. FIG3 is a schematic diagram of a display substrate provided in some embodiments of this disclosure, and FIG4 is a schematic diagram of a display substrate provided in other embodiments of this disclosure. As shown in FIG3 and FIG4, the display substrate includes: a substrate 11, a plurality of light-emitting devices 20, a accommodating structure layer 40, a light-shielding layer BM, and a plurality of color filter sections 50.
[0069] Multiple light-emitting devices 20 are disposed on a substrate 11. Each light-emitting device 20 includes a first electrode 21, a light-emitting layer 23, and a second electrode 22 arranged sequentially along a direction away from the substrate 11. For example, the first electrode is an anode, and the second electrode is a cathode. The second electrodes 22 of the multiple light-emitting devices 20 are connected to form a single layer structure. A pixel defining layer (PDL) may also be disposed on the substrate 11. The PDL is located on the side of the layer containing the first electrode 21 away from the substrate 11 and has multiple pixel openings. At least a portion of the first electrode 21 is exposed through the pixel openings, and at least a portion of the light-emitting layer 23 is located within the pixel openings. The light-emitting colors of the multiple light-emitting devices 20 include various colors, such as red, green, and blue.
[0070] The accommodating structure layer 40 is disposed on the side of the plurality of light-emitting devices 20 away from the substrate 11, and has a plurality of accommodating openings 41. The orthographic projection of the accommodating openings 41 on the substrate 11 overlaps with the orthographic projection of the light-emitting devices 20 on the substrate 11. At least a portion of the color filter portion 50 is located in the accommodating openings 41.
[0071] The light-shielding layer BM is located on the side of the accommodating structure layer 40 away from the substrate 11, and has multiple light-transmitting holes V1. The orthogonal projection of the light-transmitting holes V1 on the substrate 11 covers the orthogonal projection of the accommodating opening 41 on the substrate 11.
[0072] As shown in Figure 3, the light-shielding layer BM has a first auxiliary hole V2. There can be multiple first auxiliary holes V2, and the orthogonal projection of the first auxiliary hole V2 onto the substrate 11 lies within the orthogonal projection range of the receiving structure layer 40 onto the substrate 11. And / or, as shown in Figure 4, the receiving structure layer 40 has a second auxiliary hole 42, and there can be multiple second auxiliary holes 42. The orthogonal projection of the second auxiliary hole 42 onto the substrate 11 lies within the orthogonal projection range of the light-transmitting hole V1 onto the substrate 11. In this embodiment, the first auxiliary hole V2 can be formed in the light-shielding layer BM without forming the second auxiliary hole 42 on the receiving structure layer 40; or, the second auxiliary hole 42 can be formed on the receiving structure layer 40 without forming the first auxiliary hole V2 on the light-shielding layer BM; or, both the first auxiliary hole V2 and the second auxiliary hole 42 can be formed on the receiving structure layer 40.
[0073] In this embodiment of the present disclosure, the light-shielding layer BM has a first auxiliary hole V2, the orthographic projection of the first auxiliary hole V2 on the substrate 11 is located within the orthographic projection range of the receiving structure layer 40 on the substrate 11; and / or, the receiving structure layer 40 has a second auxiliary hole 42, the orthographic projection of the second auxiliary hole 42 on the substrate 11 is located within the orthographic projection range of the light-transmitting hole V1 on the substrate 11, so that the patterns of the light-shielding layer BM and the receiving structure layer 40 are inconsistent, thereby reducing the problem of optical interference between the light-shielding layer BM and the receiving structure layer 40, and further reducing the stripe problem caused by optical interference.
[0074] In some embodiments, when the first auxiliary hole V2 is formed on the light-shielding layer BM, as shown in FIG3, the orthographic projection of the first auxiliary hole V2 on the substrate 11 is located within the orthographic projection range of the color filter 50 on the substrate 11. Since the color filter 50 can only transmit one color of light and filter out other colors of light, when the first auxiliary hole V2 is formed on the light-shielding layer BM, the color filter 50 is used to cover the first auxiliary hole, thereby preventing light reflection (e.g., the metal layer under the light-shielding layer BM reflecting ambient light) from occurring at the location of the first auxiliary hole V2 and affecting the display effect.
[0075] In some embodiments, the colors of the plurality of color filters 50 include multiple colors. For example, the plurality of color filters 50 includes a plurality of first color filters 51, a plurality of second color filters 52, and a plurality of third color filters 53. The transmittance of the first color filters 51 and the second color filters 52 is less than the transmittance of the third color filters 53. As shown in FIG3, a first auxiliary hole V2 is formed on the light-shielding layer BM. The orthographic projection of the first auxiliary hole V2 on the substrate 11 is located within the orthographic projection range of the first color filter 51 or the second color filter 52 on the substrate 11, thereby further reducing the light reflection problem at the location of the first auxiliary hole V2.
[0076] For example, the first color filter 51 is a red filter, the second color filter 52 is a blue filter, and the third color filter 53 is a green filter.
[0077] In some embodiments, the refractive index of the accommodating structure layer 40 is less than that of the color filter portion 50, thereby enabling large-angle light to undergo total internal reflection on the sidewall of the accommodating opening 41, thereby improving the front light emission brightness of the display substrate.
[0078] In the following examples of this disclosure, the first auxiliary hole V2 is provided on the light-shielding layer BM. Since the light-shielding layer BM is opaque, optical interference can be better reduced when the first auxiliary hole V2 is provided on the light-shielding layer BM.
[0079] In the following examples of this disclosure, each of the plurality of color filter units 50 includes a plurality of first color filter units 51, a plurality of second color filter units 52, and a plurality of third color filter units 53. Furthermore, in the following examples, the orthographic projections of the accommodating opening 41, the pixel opening, and the light-transmitting aperture V1 onto the substrate 11 are all circular, thereby reducing diffraction of ambient light and minimizing glare. It should be noted that in other examples, the orthographic projections of the accommodating opening 41, the pixel opening, and the light-transmitting aperture V1 onto the substrate 11 may also be of other shapes.
[0080] Figure 5 is a schematic diagram of the light-shielding layer BM, the accommodating structure layer 40, and the color filter 50 provided in the first example of this disclosure. Figure 6 is a schematic diagram of the positional relationship between the light-transmitting hole V1, the first auxiliary hole V2, the accommodating opening 41, and the color filter 50 provided in the first example of this disclosure. Figure 7 is a partial schematic diagram of Figure 6. As shown in Figures 5 to 7, a first auxiliary hole V2 is provided around each light-transmitting hole V1 corresponding to the color filter 50 of at least one color.
[0081] For example, as shown in Figures 5 to 7, a first auxiliary hole V2 is provided around the light-transmitting hole V1 corresponding to each first color filter 51 and each second color filter 52.
[0082] For example, as shown in Figures 5 to 7, each first auxiliary hole V2 corresponds to a light-transmitting hole V1, and the first auxiliary holes V2 and the corresponding light-transmitting holes V1 are arranged along a first direction.
[0083] For example, multiple light-transmitting holes V1 are arranged in multiple rows along a third direction and in multiple columns along a fourth direction, with the third direction perpendicular to the fourth direction, and adjacent rows of light-transmitting holes V1 are staggered. For example, in odd-numbered rows, two adjacent light-transmitting holes V1 correspond to the first color filter 51 and the second color filter 52, respectively, and each light-transmitting hole V1 in even-numbered rows corresponds to the third color filter 53.
[0084] For example, the first direction is parallel to the third direction. For example, in Figures 5 to 7, each of the first auxiliary holes V2 is located on the same side of the corresponding light-transmitting hole V1.
[0085] For example, the orthogonal projection of the first auxiliary hole V2 on the substrate 11 has a first arc-shaped edge facing the light-transmitting hole V1, a second arc-shaped edge away from the light-transmitting hole V1, and a first connecting edge and a second connecting edge connecting the first arc-shaped edge and the second arc-shaped edge. The first arc-shaped edge and the second arc-shaped edge are curved in the same direction, and their radii of curvature are equal to the radii of curvature of the light-transmitting hole V1.
[0086] For example, the lengths of both the first and second arcuate edges are between 4 and 8 micrometers.
[0087] For example, the distance between the first auxiliary aperture V2 and the light-transmitting aperture V1 is between 3 and 5 micrometers; and / or, the first auxiliary aperture V2 has a first width in the radial direction of the light-transmitting aperture, the first width being between 3 and 8 micrometers, thereby facilitating fabrication while minimizing the difference between the pattern of the light-shielding layer BM and the pattern of the accommodating structural layer 40. For example, the distance between the first auxiliary aperture V2 and the light-transmitting aperture V1 is 3 micrometers, or 4 micrometers, or 5 micrometers. For example, the first width of the first auxiliary aperture V2 is 3 to 6 micrometers, for example, 3 micrometers, 4 micrometers, 5 micrometers, or 6 micrometers.
[0088] The distance between the first auxiliary hole V2 and the light-transmitting hole V1 refers to the minimum distance between them. In one example, the distance between each position on the first arc-shaped edge of the first auxiliary hole V2 and the light-transmitting hole V1 is equal. Therefore, the distance between the first auxiliary hole V2 and the light-transmitting hole V1 is the distance from any point on the first arc-shaped edge to the light-transmitting hole V1.
[0089] For example, the closest distance between the orthographic projection of the first auxiliary hole V2 on the substrate 11 and the edge of the orthographic projection of the color filter 50 on the substrate 11 is 2 to 5 micrometers, so as to ensure that the color filter 50 can fully cover the first auxiliary hole V2.
[0090] For example, to reduce manufacturing complexity, multiple first color filter units 51 can be configured as a single structure, or multiple second color filter units 52 can be configured as a single structure, or multiple third color filter units 53 can be configured as a single structure. In one example, the projected area of the receiving hole corresponding to the third color filter unit 53 on the substrate 11 is smaller than the projected area of the receiving hole corresponding to either the first color filter unit 51 or the second color filter unit 52 on the substrate 11. In this case, as shown in FIG5, multiple third color filter units 53 can be connected into a single structure 53a.
[0091] Figure 8 is a schematic diagram showing the positional relationship of the light-transmitting hole V1, the first auxiliary hole V2, the receiving opening 41, and the color filter 50 provided in the second example of this disclosure, and Figure 9 is a partial schematic diagram of Figure 8. The distribution of the light-transmitting hole V1, the first auxiliary hole V2, the receiving opening 41, and the color filter 50 shown in Figures 8 and 9 is similar to that in Figures 6 and 7, the only difference being that in Figures 8 and 9, each first auxiliary hole V2 corresponds to one light-transmitting hole V1, and the first auxiliary hole V2 and the corresponding light-transmitting hole V1 are arranged along a first direction, which intersects with a third direction. For example, the first direction has an angle of 45°, or an angle of 30°, or an angle of 60°, or an angle of 75° with respect to the third direction.
[0092] In Figures 8 and 9, the first auxiliary hole V2 is located to the left of the first center line of the corresponding light-transmitting hole V1. The first center line is a straight line that passes through the center of the light-transmitting hole V1 and extends in a third direction.
[0093] Figure 10 is a schematic diagram showing the positional relationship of the light-transmitting aperture V1, the first auxiliary aperture V2, the receiving opening 41, and the color filter 50 provided in the third example of this disclosure, and Figure 11 is a partial schematic diagram of Figure 10. The distribution of the light-transmitting aperture V1, the first auxiliary aperture V2, the receiving opening 41, and the color filter 50 shown in Figures 10 and 11 is similar to that in Figures 8 and 9, the only difference is that in Figures 10 and 11, the first auxiliary aperture V2 is located to the right of the first center line of the corresponding light-transmitting aperture V1, and the first center line is a straight line that passes through the center of the light-transmitting aperture V1 and extends in a third direction.
[0094] Figure 12 is a schematic diagram showing the positional relationship of the light-transmitting hole V1, the first auxiliary hole V2, the receiving opening 41, and the color filter 50 provided in the fourth example of this disclosure, and Figure 13 is a partial schematic diagram of Figure 12. The distribution of the light-transmitting hole V1, the first auxiliary hole V2, the receiving opening 41, and the color filter 50 shown in Figures 12 and 13 is similar to that in Figures 6 and 7, the only difference is that in Figures 12 and 13, each first auxiliary hole V2 corresponds to one light-transmitting hole V1, a portion of the first auxiliary holes V2 and their corresponding light-transmitting holes V1 are arranged along a first direction, and another portion of the first auxiliary holes V2 and their corresponding light-transmitting holes V1 are arranged along a second direction, with the first direction and the second direction intersecting.
[0095] For example, as shown in Figures 12 and 13, the multiple first auxiliary holes V2 are divided into multiple auxiliary hole groups Vg. Each auxiliary hole group Vg includes M+N first auxiliary holes V2 arranged sequentially along the fourth direction, where M and N are both positive integers. In the same auxiliary hole group Vg, M first auxiliary holes V2 and their corresponding light-transmitting holes V1 are arranged along the first direction, and the remaining N first auxiliary holes V2 and their corresponding light-transmitting holes V1 are arranged along the second direction. The first direction and the second direction intersect.
[0096] For example, M = N.
[0097] For example, in Figures 12 and 13, each auxiliary hole group Vg includes four first auxiliary holes V2. Among these four first auxiliary holes V2, two consecutively arranged first auxiliary holes V2 and their corresponding light-transmitting holes V1 are arranged along a first direction; the other two consecutively arranged first auxiliary holes V2 and their corresponding light-transmitting holes V1 are arranged along a second direction.
[0098] For example, there is a first angle between the first direction and the third direction, and a second angle between the second direction and the third direction, and the first angle and the second angle are equal. For example, the first angle and the second angle are both 30°, or 45°, or 60°, or 75°, or other angles.
[0099] Figure 14 is a schematic diagram showing the positional relationship of the light-transmitting hole V1, the first auxiliary hole V2, the receiving opening 41, and the color filter 50 provided in the fifth example of this disclosure, and Figure 15 is a partial schematic diagram of Figure 14. The distribution of the light-transmitting hole V1, the first auxiliary hole V2, the receiving opening 41, and the color filter 50 shown in Figures 14 and 15 is similar to that in Figures 12 and 13, the only difference is that in Figures 14 and 15, each auxiliary hole group Vg includes four first auxiliary holes V2, of which two first auxiliary holes V2 correspond to two first color filters 51, and the other two first auxiliary holes V2 correspond to two second color filters 52. The first color filters 51 and the second color filters 52 are alternately arranged in the fourth direction. Of the two first auxiliary holes V2 corresponding to the two adjacent first color filter sections 51 in the same row, one first auxiliary hole V2 and the corresponding light-transmitting hole V1 are arranged along a first direction, and the other first auxiliary hole V2 and the corresponding light-transmitting hole V1 are arranged along a second direction; of the two first auxiliary holes V2 corresponding to the two adjacent second color filter sections 52 in the same row, one first auxiliary hole V2 and the corresponding light-transmitting hole V1 are arranged along a first direction, and the other first auxiliary hole V2 and the corresponding light-transmitting hole V1 are arranged along a second direction.
[0100] Figure 16 is a schematic diagram of the positional relationship between the light-transmitting hole V1, the first auxiliary hole V2, the receiving opening 41, and the color filter 50 provided in the sixth example of this disclosure. Figure 17 is a partial schematic diagram of Figure 16. The distribution of the light-transmitting hole V1, the first auxiliary hole V2, the receiving opening 41, and the color filter 50 shown in Figures 16 and 17 is similar to that in Figure 12. The only difference is that in Figures 16 and 17, the first auxiliary hole V2 on the light-shielding layer BM is divided into multiple auxiliary hole groups Vg. Each auxiliary hole group Vg corresponds to a light-transmitting hole V1. The auxiliary hole group Vg includes at least two first auxiliary holes V2 located around the corresponding light-transmitting hole V1.
[0101] For example, in Figure 16, each auxiliary hole group Vg includes two first auxiliary holes V2, one of which is arranged with a corresponding light-transmitting hole V1 along a first direction, and the other is arranged with a corresponding light-transmitting hole V1 along a second direction, the first direction and the second direction intersecting.
[0102] For example, there is a first angle between the first direction and the third direction, and a second angle between the second direction and the third direction, and the first angle and the second angle are equal. For example, the first angle and the second angle are both 30°, or 45°, or 60°, or 75°, or other angles.
[0103] Figure 18 is a schematic diagram of the positional relationship between the light-transmitting hole V1, the first auxiliary hole V2, the receiving opening 41, and the color filter 50 provided in the seventh example of this disclosure. Figure 19 is a partial schematic diagram of Figure 18. The distribution of the light-transmitting hole V1, the first auxiliary hole V2, the receiving opening 41, and the color filter 50 shown in Figure 18 is similar to that in Figure 6. The only difference is that in Figures 18 and 19, the orthogonal projection of the first auxiliary hole V2 on the substrate 11 is a circle.
[0104] Figure 20 is a schematic diagram showing the positional relationship of the light-transmitting hole V1, the first auxiliary hole V2, the receiving opening 41, and the color filter 50 provided in the eighth example of this disclosure. The distribution of the light-transmitting hole V1, the first auxiliary hole V2, the receiving opening 41, and the color filter 50 shown in Figure 20 is similar to that in Figure 8, the only difference is that in Figure 20, the orthogonal projection of the first auxiliary hole V2 on the substrate 11 is a circle.
[0105] Figure 21 is a schematic diagram of the positional relationship between the light-transmitting hole V1, the first auxiliary hole V2, the receiving opening 41, and the color filter 50 provided in the ninth example of this disclosure. The distribution of the light-transmitting hole V1, the first auxiliary hole V2, the receiving opening 41, and the color filter 50 shown in Figure 21 is similar to that in Figure 10. The only difference is that in Figure 21, the orthogonal projection of the first auxiliary hole V2 on the substrate 11 is a circle.
[0106] Figure 22 is a schematic diagram of the positional relationship of the light-transmitting hole V1, the first auxiliary hole V2, the receiving opening 41 and the color filter 50 provided in the tenth example of this disclosure. The distribution of the light-transmitting hole V1, the first auxiliary hole V2, the receiving opening 41 and the color filter 50 shown in Figure 22 is similar to that in Figure 12, the only difference is that in Figure 22, the orthogonal projection of the first auxiliary hole V2 on the substrate 11 is a circle.
[0107] Similarly, for the structures shown in Figures 14 and 16, the shape of the first auxiliary aperture V2 can also be set to circular. In various examples where the first auxiliary aperture V2 is circular, the distance between the first auxiliary aperture V2 and the light-transmitting aperture V1 is between 3 and 5 micrometers, for example, 3 micrometers, 4 micrometers, or 5 micrometers. The first auxiliary aperture V2 has a first width in the radial direction of the light-transmitting aperture V1, which is the diameter of the first auxiliary aperture V2. For example, the first width is 3 to 8 micrometers, for example, 3 micrometers, 4 micrometers, 6 micrometers, or 8 micrometers.
[0108] It should be noted that the shape of the first auxiliary hole V2 in this embodiment is not limited to the shape given in the above examples, and can also be other shapes, such as polygons, ellipses, or other irregular shapes. It should also be noted that when a second auxiliary hole is provided on the receiving structure layer 40, the relative positional relationship between the second auxiliary hole and the receiving opening 41 can also refer to the relative positional relationship between the first auxiliary hole V2 and the light-transmitting hole V1 in the above examples.
[0109] Figure 23 is a schematic diagram of a driving backplane, a light-emitting device 20, and an encapsulation layer provided in some embodiments of this disclosure. In some embodiments, as shown in Figure 23, the driving backplane includes a substrate 11 and a driving circuit layer 12 disposed on the substrate 11, with the light-emitting device 20 located on the side of the driving circuit layer 12 away from the substrate 11. The display substrate may include other film layers, which are not limited herein.
[0110] The driving circuit layer 12 may include transistors and storage capacitors constituting pixel circuits. Figure 23 shows only one transistor and one storage capacitor in each pixel circuit. The transistor includes an active layer 122, a gate electrode 121, a source electrode 123, and a drain electrode 124. In some possible implementations, the driving circuit layer 12 of each sub-pixel may include: a buffer layer BFL disposed on the substrate 11, an active layer 122 disposed on the buffer layer BFL, a first gate insulating layer GI1 covering the active layer 122, a gate electrode 121 and a first capacitor electrode 125 disposed on the first gate insulating layer GI1, a second gate insulating layer GI2 covering the gate electrode 121 and the first capacitor electrode 125, a second capacitor electrode 126 disposed on the second gate insulating layer GI2, and an interlayer insulating layer ILD covering the second capacitor electrode 126. A via is formed in the interlayer insulating layer ILD, and the via exposes the active layer 122. Source electrode 123 and drain electrode 124 are disposed on the interlayer insulating layer (ILD), and are connected to the active layer 122 via vias. A planarization layer (PLN) is located on the side of the source electrode 123 and drain electrode 124 away from the substrate 10 (substrate 11). A first capacitor electrode 125 and a second capacitor electrode 126 form a storage capacitor. In some possible implementations, the buffer layer (BFL), the first gate insulating layer (GI1), the second gate insulating layer (GI2), and the interlayer insulating layer (ILD) can be any one or more of silicon oxide (SiOx), silicon nitride (SiNx), and silicon oxynitride (SiON), and can be a single layer, multiple layers, or a composite layer. The gate electrode 121, source electrode 123, drain electrode 124, first capacitor electrode 125, and second capacitor electrode 126 can be made of metallic materials, such as any one or more of silver (Ag), copper (Cu), aluminum (Al), titanium (Ti), and molybdenum (Mo), or alloys of the above metals, such as aluminum-neodymium alloy (AlNd) or molybdenum-niobium alloy (MoNb). They can be single-layer structures or multi-layer composite structures, such as Ti / Al / Ti. The active layer 122 can be made of amorphous indium gallium zinc oxide (a-IGZO), zinc oxynitride (ZnON), indium zinc tin oxide (IZTO), amorphous silicon (a-Si), polycrystalline silicon (p-Si), hexathiophene, or polythiophene, etc. That is, this disclosure applies to transistors manufactured based on oxide technology, silicon technology, or organic technology. The active layer 122 based on oxide technology can be an oxide containing indium and tin, an oxide containing tungsten and indium, an oxide containing tungsten, indium and zinc, an oxide containing titanium and indium, an oxide containing titanium, indium and tin, an oxide containing indium and zinc, an oxide containing silicon, indium and tin, an oxide containing indium, gallium and zinc, etc.
[0111] The pixel defining layer (PDL) and the light-emitting device 20 are located on the side of the planarization layer (PLN) away from the substrate 11. The PDL has multiple pixel openings, and the light-emitting device 20 includes a first electrode 21, a light-emitting layer 23, and a second electrode 22. Of course, it may also include other organic film layers. The first electrode 21 is electrically connected to a transistor, and the light-emitting layer 23 is located in the pixel opening.
[0112] The encapsulation layer 30 may include a first encapsulation layer 31, a second encapsulation layer 32 and a third encapsulation layer 33 stacked together. The first encapsulation layer 31 and the third encapsulation layer 33 may be made of inorganic materials, while the second encapsulation layer 32 may be made of organic materials. The second encapsulation layer 32 is disposed between the first encapsulation layer 31 and the third encapsulation layer 33 to ensure that external moisture cannot enter the light-emitting device 20.
[0113] In some embodiments, as shown in Figures 3 and 4, the display substrate may further include a touch layer, which includes a metal line TM located between the encapsulation layer 30 and the housing structure layer 40.
[0114] In some embodiments, as shown in Figures 3 and 4, the display substrate may further include a transparent protective layer OC, which covers a light-shielding layer BM and a plurality of color filter sections 50.
[0115] This disclosure also provides a display device, including the display substrate described in the above embodiments.
[0116] Display devices can include any device or product with display functionality. For example, display devices can be smartphones, mobile phones, e-book readers, desktop computers (PCs), laptop PCs, netbook PCs, personal digital assistants (PDAs), portable multimedia players (PMPs), digital audio players, mobile medical devices, cameras, wearable devices (such as head-mounted devices, electronic clothing, electronic bracelets, electronic necklaces, electronic accessories, electronic tattoos, or smartwatches), televisions, etc.
[0117] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of this disclosure, and this disclosure is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and substance of this disclosure, and these modifications and improvements are also considered to be within the scope of protection of this disclosure.
Claims
1. A display substrate, comprising: Substrate; Multiple light-emitting devices disposed on the substrate; A receiving structure layer is disposed on the side of the plurality of light-emitting devices away from the substrate, and has a plurality of receiving openings, wherein the orthographic projection of the receiving openings on the substrate overlaps with the orthographic projection of the light-emitting devices on the substrate; A light-shielding layer is located on the side of the receiving structure layer away from the substrate, and has a plurality of light-transmitting holes, the orthogonal projection of the light-transmitting holes on the substrate covering the orthogonal projection of the receiving opening on the substrate; A plurality of color filters, at least a portion of which are located in the receiving opening; The light-shielding layer has a first auxiliary hole, and the orthographic projection of the first auxiliary hole on the substrate is located within the orthographic projection range of the accommodating structure layer on the substrate. And / or, The accommodating structure layer has a second auxiliary hole, and the orthographic projection of the second auxiliary hole on the substrate is within the orthographic projection range of the light-transmitting hole on the substrate.
2. The display substrate according to claim 1, wherein, The light-shielding layer has a first auxiliary hole, and the orthographic projection of the first auxiliary hole on the substrate is located within the orthographic projection range of the color filter on the substrate.
3. The display substrate according to claim 2, wherein, The plurality of color filters include a plurality of first color filters, a plurality of second color filters, and a plurality of third color filters; the transmittance of the first color filters and the second color filters is less than the transmittance of the third color filters; The orthographic projection of the first auxiliary hole on the substrate is located within the orthographic projection range of the first color filter or the second color filter on the substrate.
4. The display substrate according to claim 1, wherein, The colors of the plurality of color filters include a variety of colors, and each light-transmitting hole corresponding to at least one color of the color filter is provided with a first auxiliary hole.
5. The display substrate according to claim 1, wherein, The plurality of color filters include a plurality of first color filters, a plurality of second color filters, and a plurality of third color filters; the plurality of third color filters are connected into a single structure.
6. The display substrate according to any one of claims 1 to 5, wherein, The light-shielding layer has a plurality of first auxiliary holes, each of which corresponds to a light-transmitting hole, and the first auxiliary holes and the corresponding light-transmitting holes are arranged along a first direction.
7. The display substrate according to any one of claims 1 to 5, wherein, The light-shielding layer has a plurality of first auxiliary holes, each of which corresponds to a light-transmitting hole. A portion of the first auxiliary holes and their corresponding light-transmitting holes are arranged along a first direction, and another portion of the first auxiliary holes and their corresponding light-transmitting holes are arranged along a second direction, with the first direction and the second direction intersecting.
8. The display substrate according to claim 7, wherein, The plurality of light-transmitting holes are arranged in multiple rows along a third direction and in multiple columns along a fourth direction, wherein the third direction is perpendicular to the fourth direction; The plurality of first auxiliary holes are divided into a plurality of auxiliary hole groups, and each auxiliary hole group includes M+N first auxiliary holes arranged sequentially along the fourth direction, where M and N are both positive integers; In the same auxiliary hole group, M first auxiliary holes and corresponding light-transmitting holes are arranged along the first direction, and the remaining N first auxiliary holes and corresponding light-transmitting holes are arranged along the second direction, wherein the first direction and the second direction intersect.
9. The display substrate according to claim 8, wherein, M = N; The first direction and the third direction have a first angle, and the second direction and the third direction have a second angle, wherein the first angle and the second angle are equal.
10. The display substrate according to any one of claims 1 to 5, wherein, The light-shielding layer has a plurality of first auxiliary holes, which are divided into a plurality of auxiliary hole groups. Each auxiliary hole group corresponds to a light-transmitting hole, and each auxiliary hole group includes at least two auxiliary holes located around the corresponding light-transmitting hole.
11. The display substrate according to claim 10, wherein, The auxiliary hole group includes two first auxiliary holes, one of which is arranged with a corresponding light-transmitting hole along a first direction, and the other of which is arranged with a corresponding light-transmitting hole along a second direction, the first direction and the second direction intersecting.
12. The display substrate according to claim 11, wherein, The plurality of light-transmitting holes are arranged in multiple rows along a third direction and in multiple columns along a fourth direction, wherein the third direction is perpendicular to the fourth direction; The first direction and the third direction have a first angle, and the second direction and the third direction have a second angle, wherein the first angle and the second angle are equal.
13. The display substrate according to any one of claims 1 to 5, wherein, The pixel opening and the light-transmitting hole are both circular in their orthogonal projections onto the substrate; The light-shielding layer has a first auxiliary hole. The orthogonal projection of the first auxiliary hole on the substrate has a first arc-shaped edge facing the light-transmitting hole and a second arc-shaped edge away from the light-transmitting hole. The first arc-shaped edge and the second arc-shaped edge are curved in the same direction, and their radii of curvature are equal to the radii of curvature of the light-transmitting hole.
14. The display substrate according to any one of claims 1 to 5, wherein, The light-shielding layer has a first auxiliary hole, and the orthographic projection of the pixel opening, the light-transmitting hole, and the first auxiliary hole on the substrate is all circular.
15. The display substrate according to any one of claims 1 to 5, wherein, The light-shielding layer has a first auxiliary hole. The distance between the first auxiliary hole and the light-transmitting hole is between 3 and 5 micrometers; and / or, the first auxiliary hole has a first width in the radial direction of the light-transmitting hole, the first width being between 3 and 8 micrometers.
16. The display substrate according to any one of claims 1 to 5, wherein, The refractive index of the accommodating structural layer is less than the refractive index of the color filter.
17. A display device, wherein, The display substrate includes any one of claims 1 to 16.