Display substrate and display device

Abstract

The utility model provides a display substrate and a display device. The display substrate comprises a substrate, peep-proof sub-pixels, a first shading layer and a second shading layer. Wherein the peep-proof sub-pixel is located on one side of the substrate; the first shading layer is located on the side, away from the substrate, of the peep-proof sub-pixel; the first shading layer is provided with a plurality of first openings corresponding to each peep-proof sub-pixel; the second light shielding layer is located on one side, deviating from the peep-proof sub-pixels, of the first light shielding layer; the second light shielding layer comprises a first light shielding structure, and the orthographic projection of the first light shielding structure on the substrate is located between the orthographic projections of the adjacent first openings on the substrate; and the second shading layer is made of a metal material. The peep-proof effect and the display effect can be improved at the same time.

Description

Technical Field

[0001] The utility model relates to the field of display technology, and in particular to a display substrate and a display device. Background Art

[0002] With the advancement of display technology, display screens are becoming increasingly widely used. When users use electronic products with displays, such as mobile phones, to view private information, they generally do not want to expose this information to others. Therefore, displays with privacy protection features are increasingly popular. Developing display products that combine good privacy protection with excellent display quality has become a pressing issue. Utility Model Content

[0003] The utility model provides a display substrate and a display device, which are used to improve anti-peeping effect and display effect.

[0004] In a first aspect of the present invention, a display substrate is provided, comprising:

[0005] substrate;

[0006] an anti-peeping sub-pixel located on one side of the substrate;

[0007] A first light shielding layer is located on a side of the anti-peeping sub-pixel facing away from the substrate; the first light shielding layer has a plurality of first openings corresponding to each anti-peeping sub-pixel;

[0008] a second light-shielding layer located on a side of the first light-shielding layer away from the anti-peeping sub-pixel; the second light-shielding layer comprising a first light-shielding structure, wherein an orthographic projection of the first light-shielding structure on the substrate is located between orthographic projections of adjacent first openings on the substrate;

[0009] The second light shielding layer is made of metal.

[0010] In some embodiments, a width of the first light-shielding structure at a narrowest position of an orthographic projection on the substrate is less than or equal to 5 μm.

[0011] In some embodiments, the longitudinal distance between the first light shielding layer and the second light shielding layer is 3 μm to 10 μm;

[0012] The vertical distance between the first light shielding layer and the anti-peeping sub-pixel is 3 μm to 8 μm.

[0013] In some embodiments, the width of the first light shielding structure at the narrowest position of the orthographic projection on the substrate is greater than or equal to 2 μm.

[0014] In some embodiments, the second light-shielding layer further includes a second light-shielding structure; the second light-shielding structure defines a first patterned area, and the first light-shielding structure is located within the first patterned area and connected to the second light-shielding structure;

[0015] The first light-shielding structure and the second light-shielding structure define a plurality of second openings; the second openings correspond to the first openings one-to-one, and the orthographic projections of the first openings on the substrate are located within the orthographic projections of the second openings on the substrate.

[0016] In some embodiments, the display substrate further comprises:

[0017] The light-gathering layer is located on the side of the second light-shielding layer away from the substrate; the light-gathering layer includes a plurality of first light-gathering structures; the first light-gathering structures correspond to the first openings one by one, and the orthographic projection of the first opening on the substrate is located within the orthographic projection of the first light-gathering structure on the substrate.

[0018] In some embodiments, an orthographic projection of the first light-shielding structure on the substrate contacts or partially overlaps with an orthographic projection of the first light-condensing structure on the substrate.

[0019] In some embodiments, the first light-concentrating structure is a convex lens.

[0020] In some embodiments, the display substrate further comprises:

[0021] Shared sub-pixels: Shared sub-pixels and anti-peeping sub-pixels are located on the same layer.

[0022] The first light shielding layer further has a fourth opening corresponding to each shared sub-pixel;

[0023] The light-concentrating layer further includes a second light-concentrating structure; the second light-concentrating structure corresponds to the fourth opening one-to-one, and the orthographic projection of the fourth opening on the substrate is located within the orthographic projection of the second light-concentrating structure on the substrate;

[0024] The second light-focusing structure is a convex lens.

[0025] In some embodiments, the display substrate further comprises:

[0026] a pixel definition layer, located between the substrate and the first light shielding layer;

[0027] The pixel definition layer includes a plurality of second patterned areas, each second patterned area includes a plurality of first pixel openings, and the first pixel openings correspond to the first openings one by one;

[0028] The anti-peeping sub-pixels correspond one-to-one to the second patterned areas. One anti-peeping sub-pixel includes a plurality of light-emitting portions, and the light-emitting portions are arranged in the first pixel openings in the corresponding second patterned areas.

[0029] In some embodiments, the first pixel openings in the same second patterned region have the same size.

[0030] In some embodiments, the display substrate further comprises:

[0031] The driving circuit layer is located between the substrate and the pixel definition layer;

[0032] The driving circuit layer includes a first electrode; the anti-peeping sub-pixels are connected to the first electrodes in a one-to-one correspondence; and the orthographic projection of the second patterned area on the substrate is located within the orthographic projection of the corresponding first electrode on the substrate.

[0033] In some embodiments, the display substrate further comprises: a shared sub-pixel;

[0034] The pixel definition layer also has a second pixel opening; so the shared sub-pixels are arranged in the second pixel opening in a one-to-one correspondence;

[0035] The driving circuit layer also includes a second electrode; the shared sub-pixels are connected to the second electrodes in a one-to-one correspondence; and the orthographic projection of the second pixel opening on the substrate is located within the orthographic projection of the corresponding second electrode on the substrate.

[0036] In some embodiments, the driving circuit layer includes a plurality of pixel circuits; a first electrode corresponds to a second electrode, and the first electrode and the corresponding second electrode are connected to the same pixel circuit.

[0037] In some embodiments, the display substrate further comprises:

[0038] The touch layer is located on the first light shielding layer and the side away from the substrate; the touch layer includes at least one touch metal layer, and one of the touch metal layers is reused as the second light shielding layer.

[0039] In some embodiments, the touch layer includes a first touch metal layer and a second touch metal layer; the first touch metal layer includes a bridging electrode, and the second touch metal layer includes a first touch electrode and a second touch electrode; the extension direction of the first touch electrode and the extension direction of the second touch electrode intersect with each other; the first touch electrodes are directly connected through the second touch metal layer at the intersection position, and the second touch electrodes are connected through the bridging electrode at the intersection position;

[0040] The first touch metal layer is reused as the second light shielding layer.

[0041] In some embodiments, the first light shielding layer is made of a metal material; and the first light shielding layer is electrically connected to a constant voltage line.

[0042] In some embodiments, the display substrate further comprises:

[0043] a touch layer, located on a side of the second light-shielding layer facing away from the substrate;

[0044] The second light shielding layer is electrically connected to the constant voltage line.

[0045] In some embodiments, the display substrate further comprises:

[0046] The touch layer is located between the second light shielding layer and the substrate; the touch layer includes at least one touch metal layer, and one of the touch metal layers is reused as the first light shielding layer.

[0047] In some embodiments, the display substrate further comprises:

[0048] a third light-shielding layer; the third light-shielding layer is located on a side of the second light-shielding layer facing away from the substrate; the third light-shielding layer is provided with a third opening; the third opening corresponds one-to-one with the anti-peeping sub-pixels, and the orthographic projections of the multiple first openings corresponding to the same anti-peeping sub-pixel on the substrate are located within the orthographic projection of the third opening on the substrate;

[0049] The orthographic projection of the first light-shielding structure on the substrate contacts or at least partially overlaps with the orthographic projection of the third light-shielding layer on the substrate.

[0050] In some embodiments, the display substrate further comprises:

[0051] The filter layer comprises a plurality of filter parts; the filter parts are arranged in the third opening.

[0052] A second aspect of the present invention provides a display device comprising any one of the above display substrates.

[0053] The beneficial effects of the utility model are as follows:

[0054] The utility model provides a display substrate and a display device, wherein the display substrate includes a substrate, anti-peeping sub-pixels, a first light-shielding layer, and a second light-shielding layer. The anti-peeping sub-pixels are located on one side of the substrate; the first light-shielding layer is located on the side of the anti-peeping sub-pixels facing away from the substrate; the first light-shielding layer has a plurality of first openings corresponding to each anti-peeping sub-pixel; the second light-shielding layer is located on the side of the first light-shielding layer facing away from the anti-peeping sub-pixels; the second light-shielding layer includes a first light-shielding structure, the orthographic projection of the first light-shielding structure on the substrate is located between the orthographic projections of adjacent first openings on the substrate; the material of the second light-shielding layer is a metal material. The plurality of first openings of the first light-shielding layer are used to divide a plurality of light-emitting areas, and the first light-shielding structure blocks the light emitted from the adjacent first openings, thereby reducing the angle of the emitted light and improving the anti-peeping effect. At the same time, the first light-shielding structure is made of metal and can form a smaller width. While ensuring the anti-peeping effect, the aperture ratio of the display substrate is increased, thereby improving the display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings introduced below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0056] Figure 1 This is a schematic diagram of a cross-sectional structure of a display substrate provided by an embodiment of the present utility model;

[0057] Figure 2 This is a schematic diagram of a top view of a display substrate provided by an embodiment of the present utility model;

[0058] Figure 3 The second schematic diagram of the cross-sectional structure of the display substrate provided by the embodiment of the present utility model;

[0059] Figure 4 The second schematic diagram of the top view structure of the display substrate provided by the embodiment of the present utility model;

[0060] Figure 5 The third schematic diagram of the cross-sectional structure of the display substrate provided by the embodiment of the present utility model;

[0061] Figure 6 The third schematic diagram of the top view structure of the display substrate provided by the embodiment of the present utility model;

[0062] Figure 7 This is a fourth schematic diagram of the cross-sectional structure of a display substrate provided in an embodiment of the present utility model;

[0063] Figure 8 The fifth schematic diagram of the cross-sectional structure of the display substrate provided by the embodiment of the present utility model;

[0064] Figure 9 The sixth schematic diagram of the cross-sectional structure of the display substrate provided by the embodiment of the present utility model;

[0065] Figure 10 The seventh schematic diagram of the cross-sectional structure of the display substrate provided in an embodiment of the present utility model;

[0066] Figure 11 The eighth schematic diagram of the cross-sectional structure of the display substrate provided by the embodiment of the present utility model;

[0067] Figure 12 A ninth schematic diagram of a cross-sectional structure of a display substrate provided in an embodiment of the present utility model;

[0068] Figure 13 This is a tenth schematic diagram of the cross-sectional structure of a display substrate provided by an embodiment of the present utility model;

[0069] Figure 14 This is a schematic diagram of a pixel circuit of a display substrate provided by an embodiment of the present utility model;

[0070] Figure 15 The second schematic diagram of the pixel circuit of the display substrate provided by the embodiment of the present utility model;

[0071] Figure 16 This is an eleventh schematic diagram of a cross-sectional structure of a display substrate provided by an embodiment of the present utility model;

[0072] Figure 17 The twelfth schematic diagram of the cross-sectional structure of the display substrate provided in an embodiment of the present utility model;

[0073] Figure 18 The thirteenth schematic diagram of the cross-sectional structure of the display substrate provided in an embodiment of the present utility model;

[0074] Figure 19 The fourteenth schematic diagram of the cross-sectional structure of the display substrate provided in an embodiment of the present utility model;

[0075] Figure 20 This is a schematic diagram of a manufacturing process of a display substrate provided by an embodiment of the present invention;

[0076] Figure 21 The second schematic diagram of the manufacturing process of the display substrate provided by the embodiment of the present utility model;

[0077] Figure 22 The third schematic diagram of the manufacturing process of the display substrate provided by the embodiment of the present utility model;

[0078] Figure 23 The fourth schematic diagram of the manufacturing process of the display substrate provided by the embodiment of the present utility model;

[0079] Figure 24 This is the fifth schematic diagram of the manufacturing process of the display substrate provided by the embodiment of the present utility model. DETAILED DESCRIPTION

[0080] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention will be further described below with reference to the accompanying drawings and examples. However, the example embodiments can be implemented in various forms and should not be understood as being limited to the embodiments described herein; on the contrary, these embodiments are provided to make the present invention more comprehensive and complete, and to fully convey the concepts of the example embodiments to those skilled in the art. The same figure marks in the figures represent the same or similar structures, and their repeated descriptions will be omitted. The words expressing position and direction described in the present invention are all explained with reference to the accompanying drawings as examples, but changes can be made as needed, and all changes are included in the scope of protection of the present invention. The drawings of the present invention are only used to illustrate the relative position relationship and do not represent the true proportion.

[0081] With the advancement of display technology, display screens are becoming increasingly widely used. When users use electronic products with displays, such as mobile phones, to view private information, they generally do not want to expose this information to others. Therefore, displays with privacy protection features are increasingly popular. Developing display products that combine good privacy protection with excellent display quality has become a pressing issue.

[0082] Figure 1 This is a schematic diagram of a cross-sectional structure of a display substrate provided by an embodiment of the present utility model; Figure 2 This is one of the schematic top view structural diagrams of the display substrate provided by an embodiment of the present utility model.

[0083] In some embodiments, as Figure 1 and Figure 2 As shown, Figure 1 Can be regarded as Figure 2 The cross-sectional view along the section line AA shows that the substrate includes a substrate 11 , an anti-peeping sub-pixel 121 , a first light shielding layer 13 and a second light shielding layer 14 .

[0084] The substrate 11 is located at the bottom of the display substrate and is used to support and carry other film layers located thereon. The shape and size of the substrate 11 are adapted to the shape and size of the display substrate. Normally, the shape of the substrate 11 can be square, rectangular or the like. When applied to special-shaped displays, the shape of the substrate 11 can also be circular or other special-shaped shapes, which is not limited here. The material of the substrate 11 can be a rigid material, such as glass, to make a rigid display substrate. The material of the substrate 11 can also be a flexible material, such as polyimide (PI), polyethylene naphthalate (PEN), polyethylene terephthalate (PET), etc., to make a flexible display substrate. The flexible substrate 11 can be a single-layer structure or a multi-layer structure. When the substrate 11 adopts a multi-layer structure, a stacked structure in which organic film layers and inorganic film layers are alternately arranged can be adopted, wherein the inorganic film layer is located between adjacent organic film layers and can play a buffering role, and the inorganic film layer can be made of silicon nitride (SiN x ), silicon oxide (SiO x ) or other single materials or composite materials, which are not limited here.

[0085] The anti-peeping sub-pixel 121 is located on one side of the substrate 11. The anti-peeping sub-pixel 121 is used to emit light in the anti-peeping mode to display an image. In a specific implementation, the display substrate may include a plurality of anti-peeping sub-pixels 121. The more anti-peeping sub-pixels 121, the more delicate the displayed image will be when the image is displayed in the anti-peeping mode. The plurality of anti-peeping sub-pixels 121 may include a red anti-peeping sub-pixel, a green anti-peeping sub-pixel, and a blue anti-peeping sub-pixel, which are respectively used to emit red light, green light, and blue light, thereby achieving color display. The plurality of anti-peeping sub-pixels 121 can also be used to emit light of the same color, thereby being used to display a monochrome image, which is not limited here.

[0086] The first light shielding layer 13 is located on the side of the anti-peeping sub-pixel 121 facing away from the substrate 11. The first light shielding layer 13 is provided with a plurality of first openings K1 corresponding to each anti-peeping sub-pixel 121. Figure 2 As shown, the first light shielding layer 13 has four first openings K1 corresponding to one anti-peeping sub-pixel. In specific implementations, the number of first openings K1 corresponding to one anti-peeping sub-pixel in the first light shielding layer 13 may also be other numbers, which is not limited here.

[0087] The first light-shielding layer 13 is provided with a plurality of first openings K1 corresponding to each anti-peeping sub-pixel 121. Specifically, for each anti-peeping sub-pixel 121, the first light-shielding layer 13 has a plurality of first openings K1 corresponding thereto, and the orthographic projection of the first openings K1 on the substrate 11 at least partially overlaps with the orthographic projection of the corresponding anti-peeping sub-pixel 121 on the substrate. In a specific implementation, the orthographic projection of each first opening K1 on the substrate 11 can be set to fall within the orthographic projection of the corresponding anti-peeping sub-pixel on the substrate 11, which is not limited here. The first opening K1 is used to transmit light emitted from the corresponding anti-peeping sub-pixel 121. When an anti-peeping sub-pixel 121 corresponds to multiple first openings K1, the light emitted from the anti-peeping sub-pixel 121 is emitted through the corresponding multiple first openings K1. Due to the small opening size of the first opening K1, the emission angle of the anti-peeping sub-pixel 121 when it exits from a single first opening K1 can be limited to a smaller range, thereby significantly reducing the proportion of high-angle light and optimizing the anti-peeping effect.

[0088] For the same anti-peeping sub-pixel, the multiple first openings K2 defined in the first light-shielding layer 13 can be of the same size, thereby improving the uniformity of the emitted light. For different anti-peeping sub-pixels, the first openings K1 defined in the first light-shielding layer 13 can also be of the same size, thereby improving the uniformity of the emitted light. This is not limited here.

[0089] The number of first openings K1 corresponding to different colors of anti-peeping sub-pixels can be the same or different. This can be set according to actual circumstances during implementation and is not limited here. For example, in some embodiments, the orthographic projection area of the blue anti-peeping sub-pixel on the substrate 11 is larger than the orthographic projection area of the red anti-peeping sub-pixel on the substrate 11, and the orthographic projection area of the red anti-peeping sub-pixel on the substrate 11 is larger than the orthographic projection area of the green anti-peeping sub-pixel on the substrate 11. Therefore, when the first openings K1 are opened on the first light-shielding layer 13, the number of first openings K1 opened corresponding to the same blue anti-peeping sub-pixel is larger than the number of first openings K1 opened corresponding to the same red anti-peeping sub-pixel, and the number of first openings K1 opened corresponding to the same red anti-peeping sub-pixel is larger than the number of first openings K1 opened corresponding to the same green anti-peeping sub-pixel.

[0090] In some embodiments, as Figure 2 As shown, the orthographic projection of the first opening K1 on the substrate 11 may be circular. In some embodiments, the orthographic projection of the first opening K1 on the substrate 11 may be other shapes, such as square, rectangle, diamond, ellipse, etc., which are not limited here.

[0091] The second light-shielding layer 14 is located on the side of the first light-shielding layer 13 facing away from the substrate 11. The second light-shielding layer 14 includes a first light-shielding structure 141. The orthographic projection of the first light-shielding structure 141 on the substrate 11 is located between the orthographic projections of adjacent first openings K1 on the substrate 11. The first light-shielding structure 141 further blocks high-angle light emitted through the first openings K1 and prevents crosstalk between light emitted from different first openings K1, thereby further improving the privacy protection effect.

[0092] At the same time, the first light-shielding structure 141 further blocks the light emitted from the first opening K1, thereby affecting the aperture ratio of the display substrate. The larger the width of the first light-shielding structure 141, the smaller the aperture ratio of the display substrate, and the greater the impact on the display effect of the display substrate. Therefore, when manufacturing the first light-shielding structure 141, it is necessary to minimize the width of the first light-shielding structure 141. For example, the width of the first light-shielding structure 141 should be much smaller than the width of the first light-shielding layer 13 located between the two first openings K1, so as to increase the aperture ratio of the display substrate and enhance the display effect.

[0093] In a specific implementation, the first light-shielding structure 141 can be made of a metal material. Compared to the organic materials commonly used to make black matrices, metal materials have more precise etching accuracy in the etching process and can achieve smaller line widths compared to organic materials, which helps reduce the width of the first light-shielding structure 141. In a specific implementation, by using metal to make the first light-shielding structure 141, the width of the first light-shielding structure 141 at the widest position of the orthographic projection on the substrate 11 can be less than or equal to a set value. This set value can be adjusted based on the specific structure of the display substrate, taking into account the anti-peeping function and aperture ratio of the display substrate, so that the display substrate's anti-peeping effect and display effect can both be optimized.

[0094] In some embodiments, the width of the first light shielding structure 141 at the widest position of the orthographic projection on the substrate 11 can be set to be less than or equal to 5μm. According to a large number of experiments conducted by researchers of the present invention, when the width of the first light shielding structure 141 at the widest position of the orthographic projection on the substrate 11 is 5μm or less, the aperture ratio of the display substrate is greatly improved, the display effect of the display substrate is significantly improved, and a good anti-peeping effect is still achieved. For example, for a display substrate in which the longitudinal distance h1 between the first light shielding layer 13 and the second light shielding layer 14 is 3μm to 10μm, and the longitudinal distance h2 between the first light shielding layer 13 and the anti-peeping sub-pixel 121 is 3μm to 8μm, when the width of the first light shielding structure 141 at the widest position of the orthographic projection on the substrate 11 is 5μm or less, the display effect is significantly improved, and the anti-peeping effect is good. When the width of the first light shielding structure 141 at the widest position of the orthographic projection on the substrate 11 is 3μm, the anti-peeping effect and display effect can achieve the best comprehensive state.

[0095] In some embodiments, the width of the first light-shielding structure 141 at the narrowest position of its orthographic projection on the substrate 11 can be set to be greater than or equal to 2 μm. According to numerous experiments conducted by researchers of the present invention, when the width of the first light-shielding structure 141 at the widest position of its orthographic projection on the substrate 11 is reduced to less than 2 μm, the privacy protection effect is significantly reduced. Therefore, setting the width of the first light-shielding structure 141 at the narrowest position of its orthographic projection on the substrate 11 to be greater than or equal to 2 μm is beneficial for ensuring the privacy protection effect of the display substrate.

[0096] In some embodiments, as Figure 2As shown, the orthographic projections of the first openings K1 on the substrate 11 are arranged in an array, with four first openings K1 in two adjacent rows and two columns. The width of the first light-shielding structure 141 at its widest position on the substrate 11 is typically the width w2 of the first light-shielding structure 141 located between two adjacent first openings K1, measured along the diagonal direction of the array. The width of the first light-shielding structure 141 at its narrowest position on the substrate 11 is typically the width w1 of the first light-shielding structure 141 located between two adjacent first openings K1, measured along the row or column direction of the array. In specific implementations, depending on the specific structure of the first light-shielding structure 141, the widest and narrowest positions of the orthographic projection of the first light-shielding structure 141 on the substrate 11 may be located at other positions, or the widths of the first light-shielding structure 141 at its widest and narrowest positions on the substrate 11 may be the same, without limitation herein.

[0097] Figure 3 The second schematic diagram of the cross-sectional structure of the display substrate provided by the embodiment of the present utility model; Figure 4 This is a second schematic diagram of the top view structure of the display substrate provided by an embodiment of the present utility model.

[0098] In some embodiments, as Figure 3 and Figure 4 As shown, Figure 4 Can be regarded as Figure 3 In the cross-sectional view along the section line BB, the second light shielding layer 14 further includes a second light shielding structure 142 (eg Figure 4 In FIG, the second light shielding layer 14 located inside the dotted line is the first light shielding structure 141, and the second light shielding layer 14 located outside the dotted line is the second light shielding structure 142). The second light shielding structure 142 defines the first patterned area P1 (such as Figure 4 In the figure, the area inside the dotted line), the first light shielding structure 141 is located within the first patterned area P1, and the first light shielding structure 141 is connected to the second light shielding structure 142. Figure 3 and Figure 4 As shown, the first shading structure 141 and the second shading structure 142 together define a plurality of second openings K2. The second openings K2 correspond one-to-one with the first openings K1, and the orthographic projection of the first opening K1 on the substrate 11 is located within the orthographic projection of the second openings K2 on the substrate 11. The second openings K2 are used to transmit light emitted through the first openings K1. At the same time, the second shading structure 142 can block the high-angle light emitted through the first openings K1 and emitted outside the first patterned area P1, thereby ensuring the anti-peeping effect of the display substrate. The orthographic projection of the second openings K2 on the substrate 11 is larger than the orthographic projection of the first openings K1 on the substrate 11, thereby ensuring the aperture ratio of the display substrate.

[0099] Figure 5The third schematic diagram of the cross-sectional structure of the display substrate provided by the embodiment of the present utility model; Figure 6 This is a third schematic diagram of the top view structure of the display substrate provided in an embodiment of the present utility model.

[0100] In some embodiments, as Figure 5 and Figure 6 As shown, the display substrate further includes a third light-shielding layer 15. The third light-shielding layer 15 is located on the side of the second light-shielding layer 14 facing away from the substrate 11. The third light-shielding layer 15 defines a third opening K3. The third opening K3 corresponds one-to-one with the anti-peeping sub-pixels 121, and the orthographic projections of the multiple first openings K1 of the same anti-peeping sub-pixel 121 on the substrate 11 are located within the orthographic projections of the corresponding third opening K3 on the substrate 11. The third light-shielding layer 15 can be made of a black matrix material commonly used in the art, such as a black light-absorbing material including carbon black, without limitation herein.

[0101] In some embodiments, as Figure 5 As shown, the second light shielding layer 14 is not provided with a second light shielding structure 142 around the first light shielding structure 141, and the third opening K3 can pass the light emitted through the first opening K1, and the third light shielding layer 15 can block the light at a large angle, achieving the same or similar anti-peeping effect as the second light shielding structure 142. Figure 5 As shown, the orthographic projection of the first light-shielding structure 141 on the substrate 11 can be arranged to contact or at least partially overlap with the orthographic projection of the third light-shielding layer 15 on the substrate, thereby avoiding light leakage in the gap between the orthographic projection of the first light-shielding structure 141 on the substrate 11 and the orthographic projection of the third light-shielding layer 15 on the substrate 11.

[0102] In some embodiments, as Figure 5 As shown, a first buffer layer is further provided between the second light-shielding layer 14 and the third light-shielding layer 15. The first buffer layer can play a buffering role. For example, when the third light-shielding layer 15 is etched to form the third opening K3, the first buffer layer can protect the second light-shielding layer 14 from being etched.

[0103] Figure 7 This is the fourth schematic diagram of the cross-sectional structure of the display substrate provided by an embodiment of the present utility model.

[0104] In some embodiments, as Figure 7 As shown, the second light-shielding layer 14 is provided with a second light-shielding structure 142 around the first light-shielding structure 141. The orthographic projection of the second light-shielding structure 142 on the substrate 11 can be set to fall within the orthographic projection of the third light-shielding layer 15 on the substrate 11. The third light-shielding layer 15 can block the second light-shielding structure 142, preventing it from reflecting light incident from outside the display substrate, thereby improving the display effect.

[0105] Figure 8 This is the fifth schematic diagram of the cross-sectional structure of the display substrate provided by the embodiment of the present utility model.

[0106] In some embodiments, as Figure 8 As shown, the display substrate further includes a filter layer 16. The filter layer 16 includes a plurality of filter sections 161. The filter sections 161 are disposed in the third opening K3. The filter sections 161 are configured to transmit light of the same color as the anti-peeping sub-pixel 121 corresponding to the third opening K3. For example, if the display substrate includes a blue anti-peeping sub-pixel, a red anti-peeping sub-pixel, and a green anti-peeping sub-pixel, then the plurality of filter sections 161 corresponding to the plurality of filter sections 161 include a blue filter section, a red filter section, and a green filter section. The blue filter section is disposed in the third opening K3 corresponding to the blue anti-peeping sub-pixel, configured to transmit blue light and filter out light other than blue light; the red filter section is disposed in the third opening K3 corresponding to the red anti-peeping sub-pixel, configured to transmit red light and filter out light other than red light; and the green filter section is disposed in the third opening K3 corresponding to the green anti-peeping sub-pixel, configured to transmit green light and filter out light other than green light. By providing the filter layer 16 to filter out stray light, color purity can be improved. In addition, the filter layer 16 can reduce the adverse effect of the reflective film layer inside the display substrate reflecting the ambient light on the display screen, thereby improving the display effect of the display substrate in a strong outdoor light environment. Compared with the related art of reducing the reflection of ambient light by setting a polarizer, the present invention is also beneficial to reducing the thickness of the display substrate by setting a filter layer, thereby meeting the thinning requirements.

[0107] Figure 9 This is the sixth schematic diagram of the cross-sectional structure of the display substrate provided by an embodiment of the present utility model.

[0108] In some embodiments, as Figure 9 As shown, the display substrate further includes a light-gathering layer 17. The light-gathering layer 17 is located on the side of the second light-shielding layer 14 facing away from the substrate 11. Specifically, the light-gathering layer 17 can be provided on the side of the third light-shielding layer facing away from the substrate 11.

[0109] The light-gathering layer 17 includes a plurality of first light-gathering structures 171. The first light-gathering structures 171 correspond one-to-one to the first openings K1. The orthographic projection of the first opening K1 on the substrate 11 is located within the orthographic projection of the corresponding first light-gathering structure 171 on the substrate 11, thereby ensuring that all or most of the light emitted through the first opening K1 can be incident on the corresponding first light-gathering structure 171, thereby improving the light utilization rate. The first light-gathering structure 171 has the function of converging light, and can adjust large-angle light (larger angle relative to the vertical direction) to small-angle light (smaller angle relative to the vertical direction), thereby further improving the anti-peeping effect of the display substrate, and is conducive to improving the brightness of the picture when viewing the display substrate directly, thereby optimizing the display effect.

[0110] In a specific implementation, the first light-focusing structure 171 may be a convex lens or other lenses with the same or similar functions, which is not limited here.

[0111] The shape of the first light-concentrating structure 171 is adapted to the shape of the first opening K1. For example, when the orthographic projection of the first opening K1 on the substrate 11 is circular, the orthographic projection of the first light-concentrating structure 171 on the substrate 11 can also be circular. Accordingly, the three-dimensional shape of the first light-concentrating structure 171 can be a portion of a sphere, for example, the three-dimensional shape of the first light-concentrating structure 171 can be a hemispherical. When the orthographic projection of the first opening K1 on the substrate 11 is other shapes, such as a square, the orthographic projection of the first light-concentrating structure 171 on the substrate 11 can be a square, or the orthographic projection of the first light-concentrating structure 171 on the substrate 11 can also be a circle or other shapes, as long as the orthographic projection of the first opening K1 on the substrate 11 falls within the corresponding orthographic projection of the first light-concentrating structure 171 on the substrate 11, and no limitation is made here.

[0112] During specific implementation, the height h3 of the first light-concentrating structure 171 can be set to be less than or equal to 6 μm. The aspect ratio of the first light-concentrating structure 171 can be set to 0.3 to 0.7. The aspect ratio of the first light-concentrating structure 171 can specifically refer to the ratio of the height h3 of the first light-concentrating structure 171 to the maximum size w3 of the orthographic projection of the first light-concentrating structure 171 on the substrate 11. For example, if the shape of the orthographic projection of the first light-concentrating structure 171 on the substrate 11 is a circle, the maximum size of the orthographic projection of the first light-concentrating structure 171 on the substrate 11 may be the diameter of the circle; for another example, if the shape of the orthographic projection of the first light-concentrating structure 171 on the substrate 11 is a square, the maximum size of the orthographic projection of the first light-concentrating structure 171 on the substrate 11 may be the diagonal of the square, which is not limited here.

[0113] In some embodiments, as Figure 9As shown, the orthographic projection of the first light-shielding structure 141 on the substrate 11 contacts or partially overlaps with the orthographic projection of the first light-focusing structure 171 on the substrate 11, thereby avoiding light leakage caused by the gap between the orthographic projection of the first light-shielding structure 141 on the substrate 11 and the orthographic projection of the first light-focusing structure 171 on the substrate 11, and improving the focusing effect of the first light-focusing structure 171 on light.

[0114] In some embodiments, as Figure 9 As shown, the display substrate also includes a covering layer 18. The covering layer 18 is located on the side of the light-gathering layer 17 away from the substrate 11. In a specific implementation, the covering layer 18 covers the light-gathering layer 17 and is in direct contact with the light-gathering layer 17. The covering layer 18 can protect the light-gathering layer 17 and can also play a role in flattening. In a specific implementation, the refractive index of the covering layer 18 can be lower than the refractive index of the light-gathering layer 17, thereby reducing the total reflection of light between the light-gathering layer 17 and the covering layer 18 and improving the transmittance of light. Specifically, the light-gathering layer 17 can be made of a material with a refractive index greater than or equal to 1.6, and the covering layer 18 can be made of a material with a refractive index less than or equal to 1.5. The specific materials of the light-gathering layer 17 and the covering layer 18 can be selected according to actual needs and are not limited here.

[0115] Figure 10 This is the seventh schematic diagram of the cross-sectional structure of the display substrate provided in an embodiment of the present utility model.

[0116] In some embodiments, as Figure 10 As shown, the display substrate also includes a shared sub-pixel 122. Specifically, when the display substrate displays an image, it can be divided into an anti-peeping display mode and a shared display mode. In the anti-peeping display mode, only the anti-peeping sub-pixel 121 emits light to display the image. In the anti-peeping display mode, the light emission angle of the display substrate is small, and the display panel has a good anti-peeping effect. In the shared display mode, only the shared sub-pixel 122 emits light to display the image, or the shared sub-pixel 122 and the anti-peeping sub-pixel 121 emit light at the same time to display the image. In the shared display mode, since the shared sub-pixel 122 emits light, the light emission angle of the display substrate is increased, which can greatly improve the viewing angle of the display substrate, thereby realizing shared display.

[0117] In a specific implementation, the shared sub-pixel 122 and the anti-peep sub-pixel 121 are located in the same layer. The first light-shielding layer 13 also defines a fourth opening K4 corresponding to each shared sub-pixel. One fourth opening K4 corresponds to one shared sub-pixel 122, and the orthographic projection of the fourth opening K4 on the substrate 11 at least partially overlaps with the orthographic projection of the corresponding shared sub-pixel 122 on the substrate 11. Specifically, the orthographic projection of the fourth opening K4 on the substrate 11 is located within the orthographic projection of the shared sub-pixel 122 on the substrate 11, or the orthographic projection of the shared sub-pixel 122 on the substrate 11 is located within the orthographic projection of the fourth opening K4 on the substrate 11, or the orthographic projection of the shared sub-pixel 122 on the substrate 11 completely overlaps with the orthographic projection of the fourth opening K4 on the substrate 11, without limitation herein.

[0118] In a specific implementation, the third light-shielding layer 15 further defines an opening corresponding to the shared sub-pixel 122 for transmitting light emitted from the corresponding shared sub-pixel 122. The orthographic projection of the opening on the substrate 11 at least partially overlaps with the orthographic projection of the fourth opening K4 on the substrate 11. Specifically, the orthographic projection of the fourth opening K4 on the substrate 11 is within the orthographic projection of the fourth opening K4 on the substrate 11, or the orthographic projection of the fourth opening K4 on the substrate 11 completely overlaps with the orthographic projection of the fourth opening K4 on the substrate 11, which is not limited herein.

[0119] like Figure 10 As shown, the light-concentrating layer 17 further includes a second light-concentrating structure 172. The second light-concentrating structure 172 corresponds one-to-one with the fourth opening K4, and the orthographic projection of the fourth opening K4 on the substrate 11 is located within the orthographic projection of the second light-concentrating structure 172 on the substrate 11, thereby ensuring that all light passing through the fourth opening K4 can be incident on the second light-concentrating structure 172, thereby preventing light leakage.

[0120] The shape of the second light-concentrating structure 172 is adapted to the shape of the fourth opening K4. For example, when the orthographic projection of the fourth opening K4 on the substrate 11 is circular, the orthographic projection of the second light-concentrating structure 172 on the substrate 11 can also be circular, and accordingly, the three-dimensional shape of the first light-concentrating structure 171 can be hemispherical. When the orthographic projection of the fourth opening K1 on the substrate 11 is other shapes, such as a square, the orthographic projection of the second light-concentrating structure 172 on the substrate 11 can be a square, and accordingly, the three-dimensional shape of the second light-concentrating structure 172 can be a portion of a cylinder; or the orthographic projection of the second light-concentrating structure 172 on the substrate 11 can also be a circle or other shape, as long as the orthographic projection of the fourth opening K4 on the substrate 11 falls within the orthographic projection of the corresponding second light-concentrating structure 172 on the substrate 11, and no limitation is made here.

[0121] In a specific implementation, the second light-focusing structure 172 may be a convex lens or other lenses with the same or similar functions, which is not limited here.

[0122] Figure 11 This is the eighth schematic diagram of the cross-sectional structure of the display substrate provided by an embodiment of the present utility model.

[0123] In some embodiments, the display substrate further includes a pixel definition layer 19. The pixel definition layer 19 is located between the substrate 11 and the first light shielding layer 13. The pixel definition layer 19 includes a plurality of second patterned areas P2. A second patterned area P2 includes a plurality of first pixel openings PK1, and the first pixel openings PK1 correspond one-to-one to the first openings K1. The orthographic projection of the first pixel opening PK1 on the substrate 11 at least partially overlaps with the orthographic projection of the corresponding first opening K1 on the substrate 11. For example, the orthographic projection of the first pixel opening PK1 on the substrate 11 is located within the orthographic projection of the corresponding first opening K1 on the substrate 11; or, the orthographic projection of the first opening K1 on the substrate 11 is located within the orthographic projection of the first pixel opening PK1 on the substrate 11; or, the orthographic projection of the first opening K1 on the substrate 11 completely overlaps with the orthographic projection of the first pixel opening PK1 on the substrate 11, which is not limited here.

[0124] In a specific implementation, the anti-peeping sub-pixels 121 correspond one-to-one with the second patterned area P2. Each anti-peeping sub-pixel 121 includes multiple light-emitting portions 1211, and the light-emitting portion 1211 of each anti-peeping sub-pixel 121 is disposed within the first pixel opening PK1 within the second patterned area P2 corresponding to the anti-peeping sub-pixel 121. Specifically, by dividing an anti-peeping sub-pixel 121 into multiple light-emitting portions 1211, the light-emitting area of each light-emitting portion 1211 can be reduced, further reducing the light emission angle of the anti-peeping sub-pixel 121 and improving the anti-peeping effect.

[0125] In some embodiments, the multiple first pixel openings PK1 within the same second patterned area P2 have the same size, thereby improving the uniformity of light emitted from each light-emitting portion 1211 of the privacy protection sub-pixel 121. In a specific implementation, the shape of the orthographic projection of the first pixel opening PK1 on the substrate can be adapted to the shape of the orthographic projection of the corresponding first opening K1 on the substrate 11. For example, if the orthographic projection of the first opening K1 on the substrate 11 is circular, the orthographic projection of the first pixel opening PK1 on the substrate can also be circular, which is not limited here.

[0126] Figure 12 This is a ninth schematic diagram of the cross-sectional structure of a display substrate provided in an embodiment of the present utility model.

[0127] In some embodiments, as Figure 12As shown, the display substrate further includes a drive circuit layer 20. The drive circuit layer 20 is used to provide drive signals. The drive circuit layer 20 is located between the substrate 11 and the pixel definition layer 19. The drive circuit layer 20 includes a first electrode 201. The anti-peeping sub-pixels 121 are connected to the first electrodes 201 in a one-to-one correspondence, and the first electrodes 201 are used to drive the anti-peeping sub-pixels 121 to emit light. Specifically, the multiple light-emitting portions 1211 of the anti-peeping sub-pixels 121 are connected to the same first electrode 201.

[0128] When implementing it specifically, Figure 12 As shown, the orthographic projection of the second patterned area P2 on the substrate 11 can be set to fall within the orthographic projection of the corresponding first electrode 201 on the substrate 11. The first electrode 201 corresponding to the second patterned area P2 is the first electrode 201 corresponding to the anti-peeping sub-pixel 121.

[0129] Figure 13 This is the tenth schematic diagram of the cross-sectional structure of the display substrate provided by an embodiment of the present utility model.

[0130] In some embodiments, as Figure 13 As shown, the display substrate further includes a shared sub-pixel 122. The pixel definition layer 19 further defines a second pixel opening PK2. One second pixel opening PK2 corresponds to one shared sub-pixel 122, and the shared sub-pixels 122 are disposed in the second pixel opening PK2 in a one-to-one correspondence.

[0131] The driving circuit layer 20 further includes a second electrode 202. The shared sub-pixels 122 are connected to the second electrodes 202 in a one-to-one correspondence, and the second sub-pixels 202 are used to drive the shared sub-pixels 122 to emit light. Figure 13 As shown, the orthographic projection of the shared sub-pixel 122 on the substrate 11 can be set to fall within the orthographic projection of the second electrode 202 on the substrate 11, which is not limited here.

[0132] In some embodiments, the drive circuit layer 20 includes multiple pixel circuits. Each first electrode 201 corresponds to a second electrode 202, and the first electrode 201 and the corresponding second electrode 202 are connected to the same pixel circuit. In other words, a pixel circuit can be simultaneously connected to an anti-peeping sub-pixel 121 and a shared sub-pixel 122. This allows switching between anti-peeping mode and shared mode to be achieved through a single pixel circuit, thereby reducing the number of pixel circuits in the drive circuit layer 20 and simplifying the design and manufacturing of the display substrate.

[0133] Figure 14 This is one of the pixel circuit diagrams of the display substrate provided by an embodiment of the present utility model.

[0134] In some embodiments, switching between anti-peeping mode and sharing mode can be achieved through a pixel circuit, where only the anti-peeping sub-pixel 121 is illuminated in anti-peeping mode, and both the anti-peeping sub-pixel 121 and the shared sub-pixel 122 are illuminated in sharing mode. Specifically, the pixel circuit includes a first transistor T1, a second transistor T2, a third transistor T3, a fourth transistor T4, a fifth transistor T5, a sixth transistor T6, a seventh transistor T7, an eighth transistor T8, and a first capacitor C1. The gate of the fifth transistor T5 and the gate of the sixth transistor T6 are both connected to the first light-emitting control signal line EM1. The gate of the second transistor T2 and the gate of the fourth transistor T4 are both connected to the scan line GT. The source of the fourth transistor T4 is connected to the data line Vdata. The gate of the first transistor T1 and the gate of the seventh transistor T7 are both connected to the reset control signal line Re. The source of the first transistor T1 is connected to the first initial voltage line Vinit1, and the source of the seventh transistor T7 is connected to the second voltage line Vinit2. One end of the first capacitor C1 is connected to the gate of the third transistor T3, and the other end is connected to the power line VDD. The drain of the fifth transistor T5 is connected to the third transistor T3, and the source is connected to the power line VDD. The gate of the eighth transistor T8 is connected to the second light-emitting control signal line EM2. In a specific implementation, the second light-emitting control signal line EM2 controls the eighth transistor T8 to be turned off, so that only the anti-peeping sub-pixel 121 can be illuminated, realizing the anti-peeping mode; the second light-emitting control signal line EM2 controls the eighth transistor T8 to be turned on, so that the anti-peeping sub-pixel 121 and the shared sub-pixel 122 can be illuminated simultaneously, realizing the shared mode. In a specific implementation, the pixel circuit can also have other structures, which are not limited here.

[0135] Figure 15 This is a second schematic diagram of a pixel circuit of a display substrate provided in an embodiment of the present invention.

[0136] In some embodiments, switching between anti-peeping mode and sharing mode can be achieved through a pixel circuit, where only the anti-peeping sub-pixel 121 is illuminated in anti-peeping mode, and only the shared sub-pixel 122 is illuminated in sharing mode. Specifically, the pixel circuit includes a first transistor T1, a second transistor T2, a third transistor T3, a fourth transistor T4, a fifth transistor T5, a sixth transistor T6, a seventh transistor T7, an eighth transistor T8, a ninth transistor T9, and a first capacitor C1. The gates of the fifth transistor T5 and the sixth transistor T6 are both connected to the first light-emitting control signal line EM1. The gates of the second transistor T2 and the fourth transistor T4 are both connected to the scan line GT. The source of the fourth transistor T4 is connected to the data line Vdata. The gate of the first transistor T1 is connected to the first reset control signal line Re1, and the source of the first transistor T1 is connected to the first initial voltage line Vinit1. The gate of the seventh transistor T7 is connected to the second reset control signal line Re2, and the source of the seventh transistor T7 is connected to the second initial voltage line Vinit2. One end of the first capacitor C1 is connected to the gate of the third transistor T3, and the other end is connected to the power line VDD. The drain of the fifth transistor T5 is connected to the third transistor T3, and the source is connected to the power line VDD. The gate of the eighth transistor T8 is connected to the second light-emitting control signal line EM2. The gate of the ninth transistor T9 is connected to the third light-emitting control signal line EM3. In a specific implementation, the eighth transistor T8 is controlled to be off by the second light-emitting control signal line EM2, and the ninth transistor T9 is controlled to be on by the third light-emitting control signal line EM3, so that only the anti-peeping sub-pixel 121 can be illuminated, realizing the anti-peeping mode. The eighth transistor T8 is controlled to be on by the second light-emitting control signal line EM2, and the ninth transistor T9 is controlled to be off by the third light-emitting control signal line EM3, so that only the shared sub-pixel 122 can be illuminated, realizing the shared mode. In a specific implementation, the pixel circuit can also have other structures, which are not limited here.

[0137] Figure 16 This is an eleventh schematic diagram of the cross-sectional structure of a display substrate provided by an embodiment of the present utility model.

[0138] In some embodiments, as Figure 16 As shown, the display substrate further includes a touch layer 21. The touch layer 21 is located on the side of the first light-shielding layer 13 facing away from the substrate 11. The touch layer 21 includes at least one touch metal layer, one of which is reused as a second light-shielding layer, thereby reducing the number of film layers in the display substrate and reducing the thickness of the display substrate.

[0139] For example, if Figure 16As shown, the touch layer 21 includes a first touch metal layer 211 and a second touch metal layer 212. The second touch metal layer 212 can be disposed on the side of the first touch metal layer 211 facing away from the substrate 11. The first touch metal layer 211 includes a bridging electrode 2111, and the second touch metal layer 212 includes a first touch electrode 2121 and a second touch electrode 2122. The bridging electrode 2111, the first touch electrode 2121, and the second touch electrode 2122 can all utilize a metal mesh structure, with mesh openings in the metal mesh corresponding to the anti-peeping sub-pixels or the common-image sub-pixels to transmit light emitted from the anti-peeping sub-pixels or the common-image sub-pixels. The extension direction of the first touch electrode 2121 intersects with the extension direction of the second touch electrode 2122. At the intersection C (the location outlined by the dashed line), the first touch electrode 2121 is directly connected to the second touch metal layer 212. At the intersection C, the second touch electrode 2122 is connected to the bridge electrode 2111. The specific structure of the touch layer 21 can be referred to related art and will not be described in detail here. The first touch metal layer 211 can be reused as the second light shielding layer 14 , and the first light shielding structure 141 is further provided in the first touch metal layer 211 .

[0140] In some embodiments, the first touch metal layer 211 may also be disposed on a side of the second touch metal layer 212 facing away from the substrate 11 , which is not limited here.

[0141] The third light shielding layer 15 may be disposed on a side of the touch layer 21 facing away from the substrate 11 to shield the touch layer 21 , reduce reflection of ambient light by the metal in the touch layer 21 , and improve display effects.

[0142] Figure 17 This is a twelfth schematic diagram of the cross-sectional structure of a display substrate provided in an embodiment of the present utility model.

[0143] In some embodiments, as Figure 17 As shown, in Figure 16 Based on the illustrated embodiment, the first light-shielding layer 13 can be made of a metal material. The first light-shielding layer 13 can be electrically connected to a constant voltage line. For example, the first light-shielding layer 13 can be grounded or connected to the negative pole of a power supply. The constant voltage line can apply a constant voltage to the first light-shielding layer 13, so that the first light-shielding layer 13 can act as a shielding layer, for example, it can be used to shield the touch layer signal from the drive circuit layer signal. In a specific implementation, the first light-shielding layer 13 can be a single-layer metal layer structure or a multi-layer metal layer stacked structure. For example, the first light-shielding layer 13 can be a single-layer aluminum metal layer, or the first light-shielding layer 13 can be a stacked structure of metal layers such as titanium / aluminum / titanium, which is not limited here.

[0144] Figure 18 This is the thirteenth schematic diagram of the cross-sectional structure of the display substrate provided in an embodiment of the present utility model.

[0145] In some embodiments, as Figure 18 As shown, the display substrate further includes a touch layer 21 . The touch layer 21 is located on a side of the second light shielding layer 14 facing away from the substrate 11 .

[0146] When implementing it specifically, Figure 18 As shown, the second light shielding layer 14 can be electrically connected to a constant voltage line. For example, the second light shielding layer 14 can be grounded or connected to the negative terminal of a power supply. The constant voltage line can apply a constant voltage to the second light shielding layer 14, so that the second light shielding layer 14 can function as a shielding layer, for example, to shield the touch layer signal from the drive circuit layer signal. This is not limited here.

[0147] Figure 19 This is the fourteenth schematic diagram of the cross-sectional structure of the display substrate provided in an embodiment of the present utility model.

[0148] In some embodiments, as Figure 19 As shown, the display substrate further includes a touch layer 21. The touch layer 21 is located between the second light-shielding layer 14 and the substrate 11. The touch layer 21 includes at least one touch metal layer, one of which is reused as the first light-shielding layer 13, thereby reducing the number of film layers of the display substrate and reducing the thickness of the display substrate.

[0149] For example, if Figure 19 As shown, the touch layer 21 includes a first touch metal layer 211 and a second touch metal layer 212, wherein the second touch metal layer 212 is located on the side of the first touch metal layer 211 facing away from the substrate 11. The first touch metal layer includes a bridging electrode 2111, which is used to bridge the touch electrodes in the second touch metal layer 212. The specific structure of the touch layer 21 can be referred to Figure 16 The first touch metal layer 211 is also reused as the first light shielding layer 13 , and the first touch metal layer 211 includes a first opening K1 .

[0150] In an embodiment of the present invention, the anti-peep sub-pixel may be a light-emitting diode (LED), a mini light-emitting diode (Mini LED), a micro light-emitting diode (Micro LED), a quantum dot light-emitting diode (QLED), or an organic light-emitting diode (OLED), thereby forming an LED display substrate, a Mini LED display substrate, a Micro LED display substrate, a QLED display substrate, or an OLED display substrate, etc., which are not limited here. The difference between LED, Mimi LED, and Micro LED mainly lies in the size. For example, the maximum size of an LED on a plane is usually above 200 μm, the maximum size of a Mimi LED on a plane is usually between 50 μm and 200 μm, and the maximum size of a Micro LED on a plane is usually less than 50 μm. According to different classification rules, LED, Mimi LED, and Micro LED may also have other size ranges, which are not limited here.

[0151] The following uses an OLED display substrate as an example to illustrate the manufacturing process of the display substrate provided by the embodiment of the present invention.

[0152] Figure 20 This is one of the schematic diagrams of the manufacturing process of the display substrate provided by an embodiment of the present invention.

[0153] In a specific manufacturing process of a display substrate provided by an embodiment of the present utility model, as Figure 20 As shown, first, a driving circuit layer 20 and a pixel definition layer 19 are sequentially fabricated on a substrate 11. Specifically, the fabrication process of the driving circuit layer 20 includes fabricating a second buffer layer (Buffer), a patterned active layer (p-si), a gate insulating layer (GI), a gate (Gate), a source (Source), a drain (Drain), a planar layer (PLN), a first electrode 201, and a second electrode 202 on the substrate 11. The first electrode 201 and the second electrode 202 can serve as anodes of the OLED device, and the active layer (p-si), the gate (Gate), the source (Source), and the drain (Drain) are used to form a thin film transistor, and the first electrode 201 and the second electrode 202 are respectively connected to one thin film transistor.

[0154] The pixel definition layer 19 is formed on the side of the drive circuit layer 20 facing away from the substrate 11. A first pixel opening PK1 and a second pixel opening PK2 are formed in the pixel definition layer 19 through etching or other processes. One first electrode 201 corresponds to multiple first pixel openings PK1, and one second electrode 202 corresponds to one second pixel opening PK2. The specific correspondence can be found in the relevant description above and is not repeated here.

[0155] Figure 21 This is the second schematic diagram of the manufacturing process of the display substrate provided by the embodiment of the present utility model.

[0156] After the pixel definition layer 19 is made, Figure 21 As shown, an anti-peeping sub-pixel 121 and a shared sub-pixel 122 are fabricated in the first pixel opening PK1. The fabrication process for the anti-peeping sub-pixel 121 and the shared sub-pixel 122 specifically includes sequentially forming the organic light-emitting layer and cathode of the OLED device on the side of the pixel definition layer 19 facing away from the substrate 11 using a vacuum evaporation process. The organic light-emitting layer includes, but is not limited to, a hole injection layer, a hole transport layer, a light-emitting layer, and an electron transport layer. For specific implementation, reference can be made to the evaporation process for OLED devices in related art, and a detailed description thereof will not be given here.

[0157] Then, a thin film encapsulation layer (TFE) 22 is formed on the side of the cathode facing away from the substrate 11. The thin film encapsulation layer 22 can be a single-layer structure or a stacked structure of multiple film layers. When the thin film encapsulation layer 22 is a single-layer structure, it can be made of inorganic materials such as silicon oxide, silicon nitride, silicon oxynitride, aluminum oxide, and titanium oxide. When the thin film encapsulation layer 22 is a stacked structure, the thin film encapsulation layer 22 can include an inorganic film layer that blocks water and oxygen and an organic film layer that has stress release and flattening effects. The inorganic film layer is prepared by chemical vapor deposition or atomic layer deposition, and the material can be silicon nitride, silicon oxide, silicon oxynitride, aluminum oxide, titanium oxide, etc., but is not limited to these. The organic layer is prepared by inkjet printing, screen printing, dispensing, and the like. During specific production, a first inorganic film layer can be first deposited on the side of the cathode facing away from the substrate 11. The first inorganic film layer can be a single layer formed by any one of the aforementioned materials, or a stacked layer formed by multiple materials of the aforementioned materials. The orthographic projection of the first inorganic film layer on the substrate 11 needs to completely cover the effective display area (AA). Then, a first organic film layer is prepared on the side of the first inorganic film layer facing away from the substrate 11. The orthographic projection of the first organic film layer on the substrate 11 needs to completely cover the effective display area (AA) and fall within the orthographic projection of the first inorganic film layer on the substrate 11. The orthographic projection of the cathode on the substrate 11 falls within the orthographic projection of the first organic film layer on the substrate 11. Then, a second inorganic film layer is made on the side of the first organic layer facing away from the substrate 11. The method for making the second inorganic film layer can refer to the first inorganic film layer, and the material of the second inorganic film layer can be the same as or different from that of the first inorganic film layer, which is not limited here. The orthographic projection of the second inorganic film layer on the substrate 11 can completely overlap with the orthographic projection of the first inorganic film layer on the substrate 11, or the orthographic projection of the first inorganic film layer on the substrate 11 can be set to fall within the orthographic projection of the second inorganic film layer on the substrate 11, which is not limited here. In a specific implementation, the thickness of the first organic film layer can be set to 2 μm-8 μm, and the overall thickness of the thin film encapsulation layer 22 can be set to be less than or equal to 10 μm, which is not limited here.

[0158] Figure 22 This is the third schematic diagram of the manufacturing process of the display substrate provided by the embodiment of the present utility model.

[0159] After the thin-film encapsulation layer 22 is formed, a first light-shielding layer 13 is formed on the side of the thin-film encapsulation layer 22 facing away from the substrate 11. Through etching and other processes, a plurality of first openings K1 corresponding to the privacy sub-pixels and fourth openings K4 corresponding to the shared image sub-pixels are formed in the first light-shielding layer 13. The specific correspondence can be found in the relevant sections above and will not be detailed here. The first light-shielding layer 13 can be made of metal or other commonly used materials for black matrix production in the art, and will not be described in detail here.

[0160] An optical control layer 23 is then formed on the side of the first light-shielding layer 13 facing away from the substrate 11. The optical control layer 23 can be made of organic materials commonly used in the art for making planarization layers. The optical control layer 23 provides a planarization effect, and by adjusting the thickness of the optical control layer 23, the light-gathering capability of the lenses in the subsequent light-gathering layer can be adjusted.

[0161] Figure 23 This is the fourth schematic diagram of the manufacturing process of the display substrate provided by the embodiment of the present utility model.

[0162] After the optical control layer 23 is formed, a second light-shielding layer 14 is formed on the side of the optical control layer 23 facing away from the substrate 11. A patterning process, such as etching, is performed on the second light-shielding layer 14 to form a first light-shielding structure 141 and other structures. The specific structure of the second light-shielding layer 14 can be found in the relevant descriptions above and will not be repeated here.

[0163] Then, a first buffer layer is formed on the side of the second light shielding layer 14 facing away from the substrate 11 . The first buffer layer can be made of organic materials commonly used in the art for making planar layers, thereby achieving planarization and protecting the second light shielding layer 14 .

[0164] A third light-shielding layer 15 is then formed on the side of the first buffer layer facing away from the substrate. A patterning process, such as etching, is then performed on the second light-shielding layer 15 to form third openings K3 corresponding to the privacy sub-pixels and openings corresponding to the shared sub-pixels. The detailed structure of the second light-shielding layer 15 can be found in the relevant descriptions above and will not be repeated here.

[0165] Then, a third buffer layer is formed on the side of the second light shielding layer 15 facing away from the substrate 11. The first buffer layer can be made of organic materials commonly used in the art for making planar layers, thereby achieving planarization and protecting the second light shielding layer 15.

[0166] Figure 24 This is the fifth schematic diagram of the manufacturing process of the display substrate provided by the embodiment of the present utility model.

[0167] After the third buffer layer is formed, a lens layer 17 is formed on the side of the third buffer layer facing away from the substrate 11. The specific structure of the lens layer 17 can be referred to the relevant description in the above content and will not be repeated here.

[0168] Then, a cover layer 18 is formed on the side of the lens layer 17 facing away from the substrate 11. The specific structure of the cover layer 18 can be found in the description of the relevant parts in the above content, and will not be repeated here.

[0169] The manufacturing process of the above-mentioned display substrate provided in the embodiment of the present invention is only used to illustrate a possible manufacturing process of the display substrate provided in the embodiment of the present invention, and is not intended to limit the specific structure and manufacturing method of the display substrate provided in the embodiment of the present invention. The display substrate provided in the embodiment of the present invention may also have other structures necessary to achieve specific functions during specific manufacturing. During specific implementation, it may be set according to actual conditions, and no limitation is made here. During specific manufacturing of the display substrate provided in the embodiment of the present invention, the relative positions between the film layers may also be adjusted according to the actual structure of the display substrate, and no further details are given here.

[0170] A second aspect of the present invention further provides a display device. The display device includes the display substrate provided in any of the aforementioned embodiments. The display device provided in the embodiments of the present invention, when implemented, has the same or similar technical effects as any of the aforementioned embodiments, and will not be further described here. In implementation, the display device can be a mobile phone, tablet computer, monitor, television, etc., without limitation.

[0171] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. 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 invention.

[0172] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A display substrate, wherein: include: substrate; an anti-peeping sub-pixel located on one side of the substrate; a first light-shielding layer, located on a side of the anti-peeping sub-pixel facing away from the substrate; The first light shielding layer is provided with a plurality of first openings corresponding to each of the anti-peeping sub-pixels; a second light-shielding layer, located on a side of the first light-shielding layer away from the anti-peeping sub-pixel; the second light-shielding layer comprises a first light-shielding structure, an orthographic projection of the first light-shielding structure on the substrate being located between orthographic projections of adjacent first openings on the substrate; The second light shielding layer is made of metal.

2. The display substrate according to claim 1, wherein: The width of the first light-shielding structure at the narrowest position of its orthographic projection on the substrate is less than or equal to 5 μm.

3. The display substrate according to claim 2, wherein: The longitudinal distance between the first light-shielding layer and the second light-shielding layer is 3 μm to 10 μm; A longitudinal distance between the first light shielding layer and the anti-peeping sub-pixel is 3 μm to 8 μm.

4. The display substrate according to any one of claims 1 to 3, wherein: The width of the first light-shielding structure at the narrowest position of its orthographic projection on the substrate is greater than or equal to 2 μm.

5. The display substrate according to claim 1, wherein The second light-shielding layer further includes a second light-shielding structure; the second light-shielding structure defines a first patterned area, and the first light-shielding structure is located within the first patterned area and connected to the second light-shielding structure; The first light shielding structure and the second light shielding structure define a plurality of second openings; The second opening corresponds to the first opening one-to-one, and the orthographic projection of the first opening on the substrate is located within the orthographic projection of the second opening on the substrate.

6. The display substrate according to claim 1, wherein: The display substrate further includes: A light-gathering layer is located on a side of the second light-shielding layer away from the substrate; the light-gathering layer includes a plurality of first light-gathering structures; the first light-gathering structures correspond one-to-one to the first openings, and the orthographic projection of the first opening on the substrate is located within the orthographic projection of the first light-gathering structure on the substrate.

7. The display substrate according to claim 6, wherein: The orthographic projection of the first light-shielding structure on the substrate contacts or partially overlaps with the orthographic projection of the first light-condensing structure on the substrate.

8. The display substrate according to claim 6 or 7, wherein: The first light-focusing structure is a convex lens.

9. The display substrate according to claim 6 or 7, wherein: The display substrate further includes: Shared sub-pixels; the shared sub-pixels and the anti-peeping sub-pixels are located in the same layer; The first light shielding layer further has a fourth opening corresponding to each of the shared sub-pixels; The light-concentrating layer further includes a second light-concentrating structure; the second light-concentrating structure corresponds one-to-one to the fourth opening, and the orthographic projection of the fourth opening on the substrate is located within the orthographic projection of the second light-concentrating structure on the substrate; The second light-focusing structure is a convex lens.

10. The display substrate according to claim 1, wherein The display substrate further includes: a pixel definition layer, located between the substrate and the first light shielding layer; The pixel definition layer includes a plurality of second patterned areas, one of the second patterned areas includes a plurality of first pixel openings, and the first pixel openings correspond to the first openings one by one; The anti-peeping sub-pixels correspond to the second patterned areas in a one-to-one manner. One of the anti-peeping sub-pixels includes a plurality of light-emitting portions, and the light-emitting portions are arranged in the first pixel openings in the corresponding second patterned areas.

11. The display substrate according to claim 10, wherein: The first pixel openings in the same second patterned area have the same size.

12. The display substrate according to claim 10 or 11, wherein: The display substrate further includes: a driving circuit layer, located between the substrate and the pixel definition layer; The driving circuit layer includes a first electrode; the anti-peeping sub-pixels are connected to the first electrode in a one-to-one correspondence; and the orthographic projection of the second patterned area on the substrate is located within the orthographic projection of the corresponding first electrode on the substrate.

13. The display substrate according to claim 12, wherein: The display substrate further includes: a shared sub-pixel; The pixel definition layer further has a second pixel opening; so the shared sub-pixels are arranged in a one-to-one correspondence in the second pixel opening; The driving circuit layer further includes a second electrode; the shared sub-pixels are connected to the second electrodes in a one-to-one correspondence; and the orthographic projection of the second pixel opening on the substrate is located within the orthographic projection of the corresponding second electrode on the substrate.

14. The display substrate according to claim 13, wherein: The driving circuit layer includes a plurality of pixel circuits; one first electrode corresponds to one second electrode, and the first electrode and the corresponding second electrode are connected to the same pixel circuit.

15. The display substrate according to claim 1, wherein The display substrate further includes: The touch layer is located on the first light shielding layer and a side away from the substrate; the touch layer includes at least one touch metal layer, and one of the touch metal layers is reused as the second light shielding layer.

16. The display substrate according to claim 15, wherein: The touch layer includes a first touch metal layer and a second touch metal layer; the first touch metal layer includes a bridging electrode, and the second touch metal layer includes a first touch electrode and a second touch electrode. The extension direction of the first touch electrode intersects with the extension direction of the second touch electrode. The first touch electrode is directly connected to the second touch metal layer at the intersection, and the second touch electrode is connected to the bridge electrode at the intersection. The first touch metal layer is reused as the second light shielding layer.

17. The display substrate according to claim 15, wherein: The material of the first light shielding layer is a metal material; the first light shielding layer is electrically connected to a constant voltage line.

18. The display substrate according to claim 1, wherein: The display substrate further includes: a touch layer, located on a side of the second light-shielding layer facing away from the substrate; The second light shielding layer is electrically connected to a constant voltage line.

19. The display substrate according to claim 1, wherein: The display substrate further includes: The touch layer is located between the second light-shielding layer and the substrate; the touch layer includes at least one touch metal layer, and one of the touch metal layers is reused as the first light-shielding layer.

20. The display substrate according to claim 1, wherein The display substrate further includes: a third light-shielding layer; the third light-shielding layer is located on a side of the second light-shielding layer facing away from the substrate; the third light-shielding layer is provided with a third opening; the third opening corresponds one-to-one with the anti-peeping sub-pixels, and the orthographic projections of the plurality of first openings corresponding to the same anti-peeping sub-pixel on the substrate are located within the orthographic projection of the third opening on the substrate; An orthographic projection of the first light-shielding structure on the substrate contacts or at least partially overlaps with an orthographic projection of the third light-shielding layer on the substrate.

21. The display substrate according to claim 20, wherein: The display substrate further includes: A filter layer; the filter layer includes a plurality of filter parts; the filter parts are arranged in the third opening.

22. A display device comprising the display substrate according to any one of claims 1 to 21.

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