Touch display panel and manufacturing method therefor, and display apparatus

Abstract

The present disclosure provides a touch display panel and a manufacturing method therefor, and a display apparatus. The touch display panel comprises a plurality of shared sub-pixels and a plurality of anti-peeping sub-pixels, the anti-peeping sub-pixels comprising at least two anti-peeping pixel opening areas. The touch display panel further comprises: a first light-shielding layer, a touch layer, and a second light-shielding layer, wherein the first light-shielding layer defines a plurality of first opening areas; the orthographic projections of the first opening areas on a base substrate at least partially overlap with the orthographic projections of the corresponding anti-peeping pixel opening areas on the base substrate; and the touch layer also functions as the second light-shielding layer, the orthographic projection of the second light-shielding layer on the base substrate defines a plurality of second opening areas, and the orthographic projections of the second opening areas at least partially overlap with the orthographic projections of the corresponding anti-peeping pixel opening areas on the base substrate.

Description

Touch display panel, manufacturing method thereof, and display device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202410225438.3 filed in China on February 28, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present disclosure relates to the field of touch display technology, and in particular to a touch display panel, a manufacturing method thereof, and a display device. Background Art

[0004] In actual applications, display products require anti-peeping mode in some private scenarios, but screen sharing mode in some public ones. This requires the display to be able to switch between anti-peeping mode and screen sharing mode at any time. For example, when using a mobile phone to view information in public, present a payment code, or enter a password, the phone display can be switched to anti-peeping mode, while in other situations, the phone display can be switched to sharing mode. Furthermore, when using an in-vehicle display, for example, when the passenger is viewing entertainment information, the display can be switched to anti-peeping mode, while in other situations, it can be switched to sharing mode.

[0005] When display products in related technologies implement the above-mentioned mode switching function, they have complex structures, large product thickness, and high production costs. Summary of the Invention

[0006] The present disclosure aims to provide a touch display panel, a manufacturing method thereof, and a display device.

[0007] In order to achieve the above objectives, the present disclosure provides the following technical solutions:

[0008] A first aspect of the present disclosure provides a touch display panel, comprising: a base substrate and a plurality of sub-pixels disposed on the base substrate, the plurality of sub-pixels comprising a plurality of shared sub-pixels and a plurality of anti-peeping sub-pixels, the anti-peeping sub-pixels comprising at least two anti-peeping pixel opening areas; the touch display panel further comprising:

[0009] a first light-shielding layer, wherein the first light-shielding layer defines a plurality of first opening areas, wherein orthographic projections of the first opening areas on the base substrate at least partially overlap with orthographic projections of corresponding privacy-preventing pixel opening areas on the base substrate, and at least a portion of the orthographic projection of the first light-shielding layer on the base substrate is located around at least a portion of the orthographic projection of the privacy-preventing pixel opening areas on the base substrate;

[0010] a touch layer, the touch layer being located on a side of the first light-shielding layer facing away from the base substrate;

[0011] The touch layer is reused as a second light-shielding layer, and the orthographic projection of the second light-shielding layer on the base substrate defines a plurality of second opening areas, and the second opening areas at least partially overlap with the orthographic projections of the corresponding anti-peep pixel opening areas on the base substrate, and at least part of the orthographic projection of the second light-shielding layer on the base substrate is located around at least part of the orthographic projection of the anti-peep pixel opening areas on the base substrate.

[0012] Optionally, an orthographic projection of a boundary of the privacy protection pixel opening area on the base substrate is surrounded by an orthographic projection of a corresponding boundary of the first opening area on the base substrate; or, at least a portion of the orthographic projection of the boundary of the privacy protection pixel opening area on the base substrate is located inside an orthographic projection of the first light shielding layer on the base substrate;

[0013] and / or,

[0014] The orthographic projection of the boundary of the anti-peep pixel opening area on the base substrate is surrounded by the corresponding boundary of the second opening area; or, at least a portion of the orthographic projection of the boundary of the anti-peep pixel opening area on the base substrate is located inside the orthographic projection of the second light-shielding layer on the base substrate.

[0015] Optionally, the second opening areas corresponding to the anti-peeping pixel opening areas in the same anti-peeping sub-pixel are collectively regarded as an opening area unit; the touch layer includes multiple shading portions, and the orthographic projections of the shading portions on the base substrate define the corresponding opening area units; the multiple shading portions are independent of each other, or at least two of the shading portions are coupled.

[0016] Optionally, the shading portion includes at least two sub-portions, and the orthographic projections of the sub-portions on the substrate define the corresponding second opening area. The sub-portions belonging to the same shading portion are independent of each other, or, among the sub-portions belonging to the same shading portion, at least two of the sub-portions are coupled.

[0017] Optionally, the touch layer includes touch electrodes and dummy electrodes that are independent of each other, and at least one of the touch electrodes and the dummy electrodes includes the light shielding portion.

[0018] Optionally, the touch electrode includes an effective electrode portion; the shading portion included in the touch electrode is coupled to the effective electrode portion; and / or the shading portion included in the virtual electrode is independent of the effective electrode portion.

[0019] Optionally, the orthographic projection of the shading portion included in the touch electrode on the base substrate is at least partially surrounded by the orthographic projection of the effective electrode portion on the base substrate; and / or the orthographic projection of the shading portion included in the virtual electrode on the base substrate is at least partially surrounded by the orthographic projection of the effective electrode portion on the base substrate.

[0020] Optionally, the virtual electrode includes an invalid electrode portion; the shading portion included in the virtual electrode is coupled to at least part of the invalid electrode portion; or the shading portion included in the virtual electrode is independent of the invalid electrode portion.

[0021] Optionally, the orthographic projection of the light shielding portion on the base substrate forms a grid structure, and each grid in the grid structure defines a corresponding second opening area.

[0022] Optionally, the touch electrode includes an effective electrode portion, and at least a portion of the effective electrode portion is reused as the light shielding portion.

[0023] Optionally, the touch layer includes at least one touch electrode layer, and the touch electrode layer is multiplexed as the second light shielding layer.

[0024] Optionally, the touch layer includes a first touch electrode layer and a second touch electrode layer stacked in sequence in a direction away from the base substrate; the touch display panel includes two stacked layers of the second light-shielding layer, the first touch electrode layer is reused as one layer of the second light-shielding layer, and the second touch electrode layer is reused as another layer of the second light-shielding layer.

[0025] Optionally, the touch layer includes a first touch electrode layer and a second touch electrode layer stacked in sequence in a direction away from the base substrate; the first touch electrode layer is reused as a part of the second shading layer, and the second touch electrode layer is reused as another part of the second shading layer.

[0026] Optionally, at least one of the second opening regions is defined by an orthographic projection of the first touch electrode layer on the base substrate and an orthographic projection of the second touch electrode layer on the base substrate.

[0027] Optionally, the touch display panel further includes: a plurality of lens structures, the plurality of lens structures being located on the side of the touch layer facing away from the base substrate; the orthographic projection of the lens structure on the base substrate covering the orthographic projection of the corresponding anti-peep pixel opening area on the base substrate.

[0028] Optionally, the multiple shared sub-pixels are divided into multiple shared pixel units, each of which includes at least two shared sub-pixels; the multiple anti-peeping sub-pixels are divided into multiple anti-peeping pixel units, each of which includes at least two anti-peeping sub-pixels;

[0029] The multiple shared pixel units are divided into multiple shared pixel unit rows, the multiple anti-peeping pixel units are divided into multiple anti-peeping pixel unit rows, and the shared pixel unit rows and the anti-peeping pixel unit rows are alternately arranged.

[0030] Based on the technical solution of the above-mentioned touch display panel, a second aspect of the present disclosure provides a display device including the above-mentioned touch display panel.

[0031] Based on the above technical solution of the touch display panel, a third aspect of the present disclosure provides a method for manufacturing a touch display panel, comprising:

[0032] Fabricating a plurality of sub-pixels on a base substrate, wherein the plurality of sub-pixels include a plurality of shared sub-pixels and a plurality of anti-peeping sub-pixels, and the anti-peeping sub-pixels include at least two anti-peeping pixel opening areas;

[0033] A first light-shielding layer is formed on a side of the plurality of sub-pixels facing away from the base substrate, wherein the first light-shielding layer defines a plurality of first opening areas, wherein orthographic projections of the first opening areas on the base substrate at least partially overlap with orthographic projections of corresponding privacy-preventing pixel opening areas on the base substrate, and at least a portion of the orthographic projection of the first light-shielding layer on the base substrate is located around at least a portion of the orthographic projections of the privacy-preventing pixel opening areas on the base substrate;

[0034] A touch layer is produced on the side of the first light-shielding layer facing away from the base substrate, and the touch layer is reused as a second light-shielding layer. The orthographic projection of the second light-shielding layer on the base substrate defines a plurality of second opening areas, and the second opening areas at least partially overlap with the orthographic projections of the corresponding anti-peeping pixel opening areas on the base substrate. At least a portion of the orthographic projection of the second light-shielding layer on the base substrate is located around at least a portion of the orthographic projection of the anti-peeping pixel opening areas on the base substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings described herein are used to provide a further understanding of the present disclosure and constitute a part of the present disclosure. The exemplary embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation of the present disclosure. In the drawings:

[0036] FIG1 is a first cross-sectional schematic diagram of a touch display panel provided by an embodiment of the present disclosure;

[0037] FIG2 is a second cross-sectional schematic diagram of a touch display panel provided by an embodiment of the present disclosure;

[0038] FIG3 is a third cross-sectional schematic diagram of the touch display panel provided by an embodiment of the present disclosure;

[0039] FIG4 is a fourth cross-sectional schematic diagram of a touch display panel provided by an embodiment of the present disclosure;

[0040] FIG5 is a first plan view of a touch display panel provided by an embodiment of the present disclosure;

[0041] FIG6 is an enlarged schematic diagram of portion A1 in FIG5 ;

[0042] FIG7 is a schematic cross-sectional view along the B1B2 direction in FIG6 ;

[0043] FIG8 is a second plan view of a touch display panel provided by an embodiment of the present disclosure;

[0044] FIG9 is an enlarged schematic diagram of portion A2 in FIG8 ;

[0045] FIG10 is an enlarged schematic diagram of portion A3 in FIG8 ;

[0046] FIG11 is a third plan view of a touch display panel provided by an embodiment of the present disclosure;

[0047] FIG12 is an enlarged schematic diagram of the anti-peeping sub-pixel and the shared sub-pixel in FIG11 ;

[0048] FIG13 is a schematic cross-sectional view along the C1C2 direction in FIG12 . DETAILED DESCRIPTION

[0049] In order to further illustrate the touch display panel and its manufacturing method, and the display device provided by the embodiments of the present disclosure, a detailed description is given below with reference to the accompanying drawings.

[0050] Referring to Figures 1 to 7, an embodiment of the present disclosure provides a touch display panel, including: a base substrate 10 and a plurality of sub-pixels disposed on the base substrate 10, wherein the plurality of sub-pixels include a plurality of shared sub-pixels (e.g., a red shared sub-pixel P-R1, a green shared sub-pixel P-G1, and a blue shared sub-pixel P-B1) and a plurality of anti-peeping sub-pixels (e.g., a red anti-peeping sub-pixel P-R2, a green anti-peeping sub-pixel P-G2, and a blue anti-peeping sub-pixel P-B2), wherein the anti-peeping sub-pixels include at least two anti-peeping pixel opening areas 20; the touch display panel further includes:

[0051] a first light-shielding layer 31, wherein the first light-shielding layer 31 defines a plurality of first opening areas 30, wherein the orthographic projections of the first opening areas 30 on the base substrate 10 at least partially overlap with the orthographic projections of the corresponding privacy-preventing pixel opening areas 20 on the base substrate 10, and at least a portion of the orthographic projections of the first light-shielding layer 31 on the base substrate 10 are located around at least a portion of the orthographic projections of the privacy-preventing pixel opening areas 20 on the base substrate 10;

[0052] a touch layer (such as a touch electrode layer TMA and / or a touch electrode layer TMB), the touch layer being located on a side of the first light shielding layer 31 facing away from the base substrate 10;

[0053] The touch layer is reused as a second light-shielding layer 41, and the orthographic projection of the second light-shielding layer 41 on the base substrate 10 defines a plurality of second opening areas 40. The second opening areas 40 at least partially overlap with the orthographic projections of the corresponding anti-peep pixel opening areas 20 on the base substrate 10, and at least part of the orthographic projection of the second light-shielding layer 41 on the base substrate 10 is located around at least part of the orthographic projection of the anti-peep pixel opening areas 20 on the base substrate 10.

[0054] It should be noted that the reference numerals 11, 12, 13, 14 and 15 in the drawings all represent insulating layers, reference numeral 16 represents an optical adhesive (OCA), reference numeral 17 represents a cover plate, and reference numeral 18 represents a hardened protective layer (HC).

[0055] Exemplarily, the multiple shared sub-pixels include multiple red shared sub-pixels, multiple green shared sub-pixels, and multiple blue shared sub-pixels, the multiple shared sub-pixels being divided into multiple shared pixel units distributed in an array, at least some of which include one red shared sub-pixel, one green shared sub-pixel, and one blue shared sub-pixel. The multiple anti-peeping sub-pixels include multiple red anti-peeping sub-pixels, multiple green anti-peeping sub-pixels, and multiple blue anti-peeping sub-pixels, the multiple anti-peeping sub-pixels being divided into multiple anti-peeping pixel units distributed in an array, the anti-peeping pixel units including one red anti-peeping sub-pixel, one green anti-peeping sub-pixel, and one blue anti-peeping sub-pixel.

[0056] Exemplarily, at least along a certain direction, the shared pixel units and the anti-peeping pixel units are alternately arranged, but not limited thereto.

[0057] Exemplarily, the multiple shared sub-pixels are divided into multiple shared pixel units, each of which includes at least two shared sub-pixels; the multiple anti-peeping sub-pixels are divided into multiple anti-peeping pixel units, each of which includes at least two anti-peeping sub-pixels;

[0058] The multiple shared pixel units are divided into multiple shared pixel unit rows, and the multiple privacy-preventing pixel units are divided into multiple privacy-preventing pixel unit rows, wherein the shared pixel unit rows and the privacy-preventing pixel unit rows are arranged alternately. For example, the number of the privacy-preventing pixel units is equal to or different from the number of the shared pixel units, which is not limited here.

[0059] Exemplarily, the anti-peeping sub-pixel includes at least two anti-peeping pixel opening areas 20, each of which is independent of one another. For example, the anti-peeping sub-pixel includes multiple anti-peeping pixel opening areas 20 distributed in an array and independent of one another. Exemplarily, each shared sub-pixel includes a shared pixel opening area 21, but is not limited thereto. Exemplarily, the outline of the anti-peeping pixel opening area 20 includes a circle, and the outline of the shared pixel opening area 21 includes a rectangle, but is not limited thereto.

[0060] Illustratively, in the touch display panel, the number of the anti-peeping pixel opening areas 20 is greater than the number of the shared pixel opening areas 21 , and the area of ​​a single anti-peeping pixel opening area 20 is smaller than the area of ​​a single shared pixel opening area 21 .

[0061] For example, the area of ​​the anti-peeping pixel opening region corresponding to a red anti-peeping sub-pixel is smaller than the area of ​​the anti-peeping pixel opening region corresponding to a blue anti-peeping sub-pixel; and the area of ​​the anti-peeping pixel opening region corresponding to a blue anti-peeping sub-pixel is smaller than the area of ​​the anti-peeping pixel opening region corresponding to a green anti-peeping sub-pixel.

[0062] Exemplarily, the area of ​​the shared pixel opening region corresponding to a red shared sub-pixel is smaller than the area of ​​the shared pixel opening region corresponding to a blue shared sub-pixel; the area of ​​the shared pixel opening region corresponding to a blue shared sub-pixel is smaller than the area of ​​the shared pixel opening region corresponding to a green shared sub-pixel.

[0063] Exemplarily, the anode included in the anti-peeping sub-pixel is independent of the anode included in the shared sub-pixel. The light-emitting material layer EL1 included in the anti-peeping sub-pixel and the light-emitting material layer EL0 included in the shared sub-pixel can be shared, that is, the two can form an integrated structure. The anti-peeping sub-pixel and the shared sub-pixel share the same cathode layer.

[0064] Exemplarily, the exposed anode portions corresponding to the privacy-prevention pixel opening areas 20 of the same privacy-prevention sub-pixel are formed into an integrated structure. That is, one privacy-prevention sub-pixel includes an independent anode, which corresponds to each privacy-prevention pixel opening area 20 included in the privacy-prevention sub-pixel. For example, the exposed anode portions corresponding to the privacy-prevention pixel opening areas 20 in the same red privacy-prevention sub-pixel are formed into an integrated structure. The exposed anode portions corresponding to the privacy-prevention pixel opening areas 20 in the same green privacy-prevention sub-pixel are formed into an integrated structure. The exposed anode portions corresponding to the privacy-prevention pixel opening areas 20 in the same blue privacy-prevention sub-pixel are formed into an integrated structure.

[0065] Exemplarily, both the shared sub-pixel and the anti-peeping sub-pixel may adopt an S-stripe RGB pixel arrangement, but is not limited thereto.

[0066] Exemplarily, both the shared sub-pixel and the anti-peeping sub-pixel include a sub-pixel driving circuit, and the sub-pixel driving circuits included in the shared sub-pixel and the anti-peeping sub-pixel together form a driving circuit layer in the touch display panel. The touch display panel also includes a pixel definition layer (PDL), which is located on the side of the driving circuit layer facing away from the base substrate 10 and is used to define an anti-peeping pixel opening area 20 and a shared pixel opening area 21 above the anode to expose the anode. The pixel definition layer (PDL) can be made of a black pixel definition material or a transparent pixel definition material.

[0067] Exemplarily, the touch display panel further includes a thin film encapsulation layer, which is located on the side of the cathode layer facing away from the base substrate 10. The thin film encapsulation layer includes three encapsulation layers, such as an inorganic encapsulation layer, an organic encapsulation layer, and an inorganic encapsulation layer stacked in sequence, or the thin film encapsulation layer includes multiple encapsulation layers stacked in sequence. Exemplarily, the thickness of the thin film encapsulation layer is between 6 microns and 20 microns, including but not limited to these values.

[0068] Exemplarily, the first light-shielding layer 31 is located on the side of the thin-film encapsulation layer facing away from the base substrate 10. The first light-shielding layer 31 can be made of black matrix material or other light-shielding materials. In the direction perpendicular to the base substrate 10, the distance between the first light-shielding layer 31 and the sub-pixel is between 6 microns and 12 microns, preferably between 8 microns and 10 microns. The thickness of the first light-shielding layer 31 is between 1 micron and 3 microns. Exemplarily, the first light-shielding layer 31 defines a plurality of first opening areas 30, and the first opening areas 30 correspond one-to-one to the anti-peep pixel opening areas 20. By arranging that the first light-shielding layer 31 and the touch layer are both located on the side of the thin-film encapsulation layer facing away from the base substrate 10, the touch display panel is formed into a structure having an On Cell touch layer.

[0069] Exemplarily, the second light-shielding layer 41 is located on the side of the first light-shielding layer 31 facing away from the base substrate 10. Along the direction perpendicular to the base substrate 10, the distance between the second light-shielding layer 41 and the sub-pixel is between 10 microns and 30 microns, which may include endpoint values, but is not limited to this.

[0070] According to the specific structure of the above-mentioned touch display panel, it can be known that in the touch display panel provided by the embodiment of the present disclosure, a first light-shielding layer 31 and a second light-shielding layer 41 are arranged on the side of the anti-peeping pixel opening area 20 facing away from the base substrate 10. The first light-shielding layer 31 defines a first opening area 30 corresponding to the anti-peeping pixel opening area 20, and the second light-shielding layer 41 defines a second opening area 40 corresponding to the anti-peeping pixel opening area 20. The light emitted from the anti-peeping pixel opening area 20 passes through the first opening area 30 and the second opening area 40 in sequence and is emitted from the touch display panel, thereby realizing the anti-peeping mode of the touch display panel.

[0071] In more detail, in the touch display panel provided by the embodiment of the present disclosure, a plurality of first opening areas 30 are defined by setting the first light-shielding layer 31, and the orthographic projection of the first opening area 30 on the base substrate 10 at least partially overlaps with the orthographic projection of the corresponding anti-peep pixel opening area 20 on the base substrate 10. At least part of the orthographic projection of the first light-shielding layer 31 on the base substrate 10 is located around at least part of the orthographic projection of the anti-peep pixel opening area 20 on the base substrate 10, so that the first light-shielding layer 31 limits the light emitted from the anti-peep pixel opening area 20, so that the light can only be emitted from the first opening area 30 to the light-emitting side of the touch display panel. At the same time, by setting the orthographic projection of the second light-shielding layer 41 on the base substrate 10, a plurality of second opening areas 40 are defined, and the second opening areas 40 at least partially overlap with the orthographic projections of the corresponding anti-peeping pixel opening areas 20 on the base substrate 10. At least part of the orthographic projection of the second light-shielding layer 41 on the base substrate 10 is located around at least part of the orthographic projection of the anti-peeping pixel opening areas 20 on the base substrate 10, so that the second light-shielding layer 41 further defines the transmission path of the light emitted from the first opening area 30, so that the light can only be emitted from the second opening area 40 to the light-emitting side of the touch display panel, thereby enabling the touch display panel to achieve an anti-peeping mode through the anti-peeping sub-pixel.

[0072] In the touch display panel provided by the embodiment of the present disclosure, the first light-shielding layer 31 will not be arranged on the light-emitting side of the shared pixel opening area 21, that is, the orthographic projection of the first light-shielding layer 31 on the base substrate 10 does not overlap with the orthographic projection of the shared pixel opening area 21 on the base substrate 10, and the orthographic projection of the first light-shielding layer 31 on the base substrate 10 will not be located around the orthographic projection of the shared pixel opening area 21 on the base substrate 10. Therefore, the first light-shielding layer 31 will not affect the transmission path of the light emitted from the shared pixel opening area 21, so that the touch display panel can realize the sharing mode through the shared sub-pixel.

[0073] Moreover, in the touch display panel provided by the embodiment of the present disclosure, a touch layer located on the side of the first light-shielding layer 31 facing away from the base substrate 10 is reused as a second light-shielding layer 41, thereby avoiding the formation of a second light-shielding layer 41 specifically for light shielding in the touch display panel, reducing the number of film layers inside the touch display panel, optimizing the internal structure of the touch display panel, and solving the problems of complex structure, large product thickness, and high production cost when the display product realizes the switching function between the anti-peep mode and the shared screen information mode.

[0074] In some embodiments, the orthographic projection of the boundary of the anti-peeping pixel opening area 20 on the base substrate 10 is surrounded by the orthographic projection of the corresponding boundary of the first opening area 30 on the base substrate 10; or, at least a portion of the orthographic projection of the boundary of the anti-peeping pixel opening area 20 on the base substrate 10 is located inside the orthographic projection of the first light-shielding layer 31 on the base substrate 10; and / or, the orthographic projection of the boundary of the anti-peeping pixel opening area 20 on the base substrate 10 is surrounded by the boundary of the corresponding second opening area 40; or, at least a portion of the orthographic projection of the boundary of the anti-peeping pixel opening area 20 on the base substrate 10 is located inside the orthographic projection of the second light-shielding layer 41 on the base substrate 10.

[0075] Exemplarily, the orthographic projection of the anti-peep pixel opening area 20 on the base substrate 10 is located inside the orthographic projection of the corresponding first opening area 30 on the base substrate 10; or, the orthographic projection of the boundary of the anti-peep pixel opening area 20 on the base substrate 10 surrounds the orthographic projection of the corresponding first opening area 30 on the base substrate 10.

[0076] Exemplarily, the orthographic projection of the anti-peep pixel opening area 20 on the base substrate 10 is located inside the orthographic projection of the corresponding second opening area 40 on the base substrate 10; or, the orthographic projection of the boundary of the anti-peep pixel opening area 20 on the base substrate 10 surrounds the orthographic projection of the corresponding second opening area 40 on the base substrate 10.

[0077] Exemplarily, the distance between the orthographic projection of the boundary of the anti-peep pixel opening area 20 on the base substrate 10 and the orthographic projection of the corresponding boundary of the first opening area 30 on the base substrate 10 is between -3 microns and 10 microns, and can also be set between -1 micron and 10 microns, preferably between 0 and 6 microns, and the above ranges may include endpoint values.

[0078] Exemplarily, the distance between the orthographic projection of the boundary of the anti-peep pixel opening area 20 on the base substrate 10 and the orthographic projection of the boundary of the corresponding second opening area 40 on the base substrate 10 is between -3 microns and 10 microns, preferably between 0 and 6 microns, and the above ranges may include endpoint values.

[0079] It should be noted that when the above distance is a positive value, it means that the orthographic projection of the boundary of the anti-privacy pixel opening area 20 on the base substrate 10 does not overlap with the orthographic projection of the light-shielding layer on the base substrate 10. When the above distance is a negative value, it means that the orthographic projection of the boundary of the anti-privacy pixel opening area 20 on the base substrate 10 overlaps with the orthographic projection of the light-shielding layer on the base substrate 10.

[0080] The above configuration allows the light emitted from the anti-peeping pixel opening area 20 to sequentially pass through the first opening area 30 and the second opening area 40 and exit the touch display panel, thereby realizing the anti-peeping mode of the touch display panel.

[0081] As shown in Figures 5 to 10, in some embodiments, the second opening areas 40 corresponding to the anti-peeping pixel opening areas 20 in the same anti-peeping sub-pixel are collectively set as an opening area unit; the touch layer includes a plurality of light-shielding portions 60, and the orthographic projections of the light-shielding portions 60 on the base substrate 10 define the corresponding opening area units; the plurality of light-shielding portions 60 are independent of each other, or at least two of the light-shielding portions 60 are coupled.

[0082] Exemplarily, the shading portion 60 includes at least two sub-portions 601, and the orthographic projection of the sub-portions 601 on the base substrate 10 defines the corresponding second opening area 40. The sub-portions 601 belonging to the same shading portion 60 are independent of each other, or, among the sub-portions 601 belonging to the same shading portion 60, at least two of the sub-portions 601 are coupled.

[0083] The above-mentioned setting method enables the shading portion 60 to better limit the second opening area 40 located above the anti-peep pixel opening area 20, so that the light emitted from the first opening area 30 can only be emitted from the second opening area 40 to the light-emitting side of the touch display panel, thereby enabling the touch display panel to achieve an anti-peep mode.

[0084] As shown in FIG. 8 to FIG. 10 , in some embodiments, the touch layer includes touch electrodes 70 and dummy electrodes 71 that are independent of each other, and at least one of the touch electrodes 70 and the dummy electrodes 71 includes the light shielding portion 60 .

[0085] Exemplarily, both the touch electrodes 70 and the dummy electrodes 71 are made of conductive materials, such as metal, but not limited thereto. The touch electrodes 70 are used to drive or receive touch signals, thereby enabling touch functionality. The dummy electrodes 71 are floating electrodes that do not receive electrical signals. It should be noted that the dummy electrodes 71 may be provided as needed.

[0086] By configuring the touch layer to include independent touch electrodes 70 and dummy electrodes 71, touch signal strength is optimized and touch performance is enhanced. By configuring at least one of the touch electrodes 70 and dummy electrodes 71 to include the light shielding portion 60, the formation of a second light shielding layer 41 specifically for light shielding within the touch display panel is avoided, the number of film layers within the touch display panel is reduced, and the internal structure of the touch display panel is optimized. This addresses the issues of complex structure, large product thickness, and high manufacturing costs associated with switching between anti-peeping mode and shared screen information mode in display products.

[0087] As shown in Figure 10, in some embodiments, the touch electrode 70 includes an effective electrode portion 701; the shading portion 60 included in the touch electrode 70 is coupled to the effective electrode portion 701; and / or, as shown in Figure 6, the shading portion 60 included in the virtual electrode 71 and the effective electrode portion 701 are independent of each other.

[0088] The effective electrode portion 701 is primarily used to implement the touch function. The light shielding portion 60 included in the touch electrode 70 is coupled to the effective electrode portion 701. This allows the light shielding portion 60 included in the touch electrode 70 to achieve the light shielding function while increasing the area of ​​the effective electrode portion 701, thereby increasing the touch signal volume, better optimizing the touch signal strength, and further improving touch performance.

[0089] The shading portion 60 of the virtual electrode 71 is independent of the effective electrode portion 701 , so that the shading portion 60 of the virtual electrode 71 can better optimize the touch signal strength while achieving the shading function, thereby further improving the touch performance.

[0090] As shown in Figures 8 and 10, in some embodiments, the touch electrode 70 includes an effective electrode portion 701; when the shading portion 60 included in the touch electrode 70 is coupled to the effective electrode portion 701, the area of ​​the touch electrode portion (including the shading portion 60 and the effective electrode portion 701) located around a red anti-peeping sub-pixel is smaller than the area of ​​the touch electrode portion around a blue anti-peeping sub-pixel, and the area of ​​the touch electrode portion around a blue anti-peeping sub-pixel is smaller than the area of ​​the touch electrode portion around a green anti-peeping sub-pixel.

[0091] As shown in Figure 10, in some embodiments, the orthographic projection of the shading portion 60 included in the touch electrode 70 on the base substrate 10 is at least partially surrounded by the orthographic projection of the effective electrode portion 701 on the base substrate 10; and / or, as shown in Figure 6, the orthographic projection of the shading portion 60 included in the virtual electrode 71 on the base substrate 10 is at least partially surrounded by the orthographic projection of the effective electrode portion 701 on the base substrate 10.

[0092] The above arrangement not only ensures the light shielding effect of the light shielding portion 60 , but also ensures that the effective electrode portion 701 has sufficient layout space, thereby ensuring the touch effect of the touch display panel.

[0093] In some embodiments, as shown in Figures 5 to 9, the virtual electrode 71 includes an invalid electrode portion 710; the shading portion 60 included in the virtual electrode 71 is coupled to at least part of the invalid electrode portion 710; or, the shading portion 60 included in the virtual electrode 71 is independent of the invalid electrode portion 710.

[0094] The above different layouts can be selected according to actual needs. Regardless of whether the light shielding portion 60 included in the virtual electrode 71 is coupled to the ineffective electrode portion 710 , it can optimize the touch signal strength and improve the touch performance.

[0095] As shown in FIG. 11 to FIG. 13 , in some embodiments, the orthographic projection of the light shielding portion 60 on the base substrate 10 forms a grid structure, and each grid in the grid structure defines a corresponding second opening area 40 .

[0096] Exemplarily, the touch electrode 70 includes an effective electrode portion 701, and at least a portion of the effective electrode portion 701 is reused as the light shielding portion 60. Exemplarily, the dummy electrode 71 is reused as the light shielding portion 60 having a grid structure.

[0097] The shading portion 60 is configured as a grid structure, in which each grid defines a corresponding second opening area 40 , which effectively simplifies the structure of the shading portion 60 , increases the layout space of the touch electrodes 70 , and thus reduces the layout difficulty of the touch electrodes 70 .

[0098] In some embodiments, different colored privacy sub-pixels correspond to different grid sizes. For example, the grid size corresponding to a red privacy sub-pixel is smaller than the grid size corresponding to a green privacy sub-pixel, and the grid size corresponding to a blue privacy sub-pixel is smaller than the grid size corresponding to a green privacy sub-pixel, but the present invention is not limited thereto.

[0099] As shown in FIG. 1 to FIG. 4 , in some embodiments, the touch layer includes at least one touch electrode layer (such as a touch electrode layer TMA and a touch electrode layer TMB), and the touch electrode layer is multiplexed as the second light shielding layer 41 .

[0100] Exemplarily, the touch electrode layer includes touch electrodes 70 and dummy electrodes 71 that are independent of each other.

[0101] Exemplarily, the touch layer includes one or two metal grid-shaped touch electrode layers, wherein the bottom of the touch electrode layer may be blackened or not, and the blackening process may be achieved by forming a black matrix.

[0102] For example, when the touch layer includes two touch electrode layers, a dielectric layer may be formed between the two touch electrode layers. The dielectric layer may be made of an inorganic material, such as SiNx and / or SiOx, or an organic material. The thickness of the touch layer may be between 0.1 microns and 5 microns, for example, between 0.1 microns and 2 microns, but is not limited thereto. The mesh size of the grid structure formed by the light shielding portion 60 may be between 3 microns and 20 microns.

[0103] Exemplarily, the touch layer includes a first touch electrode layer (e.g., TMB) and a second touch electrode layer (e.g., TMA) stacked in sequence in a direction away from the base substrate 10; at least one of the first touch electrode layer and the second touch electrode layer is reused as the second light-shielding layer 41.

[0104] As shown in Figure 4, in some embodiments, the touch layer includes a first touch electrode layer (such as TMB) and a second touch electrode layer (such as TMA) stacked in sequence in a direction away from the base substrate 10; the touch display panel includes two stacked layers of the second light-shielding layer 41, the first touch electrode layer is multiplexed into one layer of the second light-shielding layer 41, and the second touch electrode layer is multiplexed into another layer of the second light-shielding layer 41.

[0105] As shown in Figures 3, 12 and 13, in some embodiments, the touch layer includes a first touch electrode layer (e.g., TMB) and a second touch electrode layer (e.g., TMA) stacked in sequence in a direction away from the base substrate 10; the first touch electrode layer is reused as a part of the second light-shielding layer 41, and the second touch electrode layer is reused as another part of the second light-shielding layer 41.

[0106] Exemplarily, at least one second opening area 40 is defined by an orthographic projection of the first touch electrode layer on the base substrate 10 and an orthographic projection of the second touch electrode layer on the base substrate 10 .

[0107] As shown in FIG3 , illustratively, the orthographic projection of the portion of the second touch electrode layer (eg, TMA) reused as the second light shielding layer 41 on the base substrate overlaps with the orthographic projections of two adjacent lens structures 50 on the base substrate.

[0108] The above configuration not only ensures the light shielding effect of the second light shielding layer 41 , but also ensures the touch effects of the first touch layer and the second touch layer.

[0109] In some embodiments, when at least one of the first touch electrode layer (e.g., TMB) and the second touch electrode layer (e.g., TMA) is reused as the second light-shielding layer 41, the size of the second opening area defined by the second light-shielding layer 41 is smaller than the size of the first opening area defined by the first light-shielding layer. For example, the orthographic projection of the second opening area on the base substrate is located within the orthographic projection of the corresponding first opening area on the base substrate, but the present invention is not limited thereto.

[0110] In some embodiments, when at least one of the first touch electrode layer (e.g., TMB) and the second touch electrode layer (e.g., TMA) is reused as the second light-shielding layer 41, the size of the second opening area defined by the second light-shielding layer 41 is larger than the size of the first opening area defined by the first light-shielding layer. For example, the orthographic projection of the second opening area on the base substrate completely covers the orthographic projection of the corresponding first opening area on the base substrate, but the present invention is not limited thereto.

[0111] In some embodiments, when at least one of the first touch electrode layer (e.g., TMB) and the second touch electrode layer (e.g., TMA) is reused as the second light shielding layer 41, the size of the second opening area defined by the second light shielding layer 41 is equal to the size of the first opening area defined by the first light shielding layer. For example, the orthographic projection of the second opening area on the base substrate coincides with the orthographic projection of the corresponding first opening area on the base substrate, but the present invention is not limited thereto.

[0112] As shown in Figures 1 to 4, in some embodiments, the touch display panel further includes: a plurality of lens structures 50, wherein the plurality of lens structures 50 are located on the side of the touch layer facing away from the base substrate 10; the orthographic projection of the lens structure 50 on the base substrate 10 covers the orthographic projection of the corresponding anti-peep pixel opening area 20 on the base substrate 10.

[0113] Exemplarily, the lens structure 50 corresponds one-to-one to the anti-peeping pixel opening area 20, and the orthographic projection of the anti-peeping pixel opening area 20 on the base substrate 10 is located inside the orthographic projection of the corresponding lens structure 50 on the base substrate 10, and the orthographic projection of the anti-peeping pixel opening area 20 on the base substrate 10 is surrounded by the boundary of the orthographic projection of the corresponding lens structure 50 on the base substrate 10.

[0114] Exemplarily, the lens structure 50 is made of a high-refractive-index material, and the refractive index of the lens structure 50 is between 1.3 and 1.9, including endpoint values. The periphery of the lens structure 50 is made of a low-refractive-index material, and the refractive index is between 1.1 and 1.7. The lens structure 50 includes a hemispherical structure and a spherical cap structure. The bottom diameter of the lens structure 50 is between 6 microns and 40 microns, and the ground diameter of the lens structure 50 is greater than the diameter of the anti-peep pixel opening area 20. The lens structure 50 can be in direct contact with the second light-shielding layer 41, or an inorganic film layer or an organic film layer can be separated from the second light-shielding layer 41.

[0115] The touch display panel is configured as described above and further includes a plurality of lens structures 50 , which better improves the light extraction rate of the anti-peeping sub-pixels and further improves the display effect of the touch display panel in the anti-peeping mode.

[0116] An embodiment of the present disclosure further provides a display device, comprising the touch display panel provided by the above embodiment.

[0117] Exemplarily, the display device includes an active-matrix organic light-emitting diode (AMOLED) display device, but is not limited thereto.

[0118] It should be noted that the display device can be any product or component with a display function, such as a television, a monitor, a digital photo frame, a mobile phone, a tablet computer, etc., wherein the display device also includes a flexible circuit board, a printed circuit board and a backplane.

[0119] In the touch display panel provided by the above embodiment, a first light-shielding layer 31 and a second light-shielding layer 41 are provided on the side of the anti-peeping pixel opening area 20 facing away from the base substrate 10. The first light-shielding layer 31 defines a first opening area 30 corresponding to the anti-peeping pixel opening area 20, and the second light-shielding layer 41 defines a second opening area 40 corresponding to the anti-peeping pixel opening area 20. The light emitted from the anti-peeping pixel opening area 20 passes through the first opening area 30 and the second opening area 40 in sequence and exits the touch display panel, thereby realizing the anti-peeping mode of the touch display panel. Moreover, in the touch display panel provided by the above embodiment, a touch layer located on the side of the first shading layer 31 facing away from the base substrate 10 is reused as a second shading layer 41, thereby avoiding the formation of a second shading layer 41 specifically for shading in the touch display panel, reducing the number of film layers inside the touch display panel, optimizing the internal structure of the touch display panel, and solving the problems of complex structure, large product thickness, and high production cost when the display product realizes the switching function between the anti-peep mode and the shared screen information mode.

[0120] Therefore, the display device provided by the embodiment of the present disclosure also has the above-mentioned beneficial effects when it includes the above-mentioned touch display panel, which will not be described in detail here.

[0121] The present disclosure also provides a method for manufacturing a touch display panel, including:

[0122] Fabricating a plurality of sub-pixels on a base substrate, wherein the plurality of sub-pixels include a plurality of shared sub-pixels and a plurality of anti-peeping sub-pixels, and the anti-peeping sub-pixels include at least two anti-peeping pixel opening areas;

[0123] A first light-shielding layer is formed on a side of the plurality of sub-pixels facing away from the base substrate, wherein the first light-shielding layer defines a plurality of first opening areas, wherein orthographic projections of the first opening areas on the base substrate at least partially overlap with orthographic projections of corresponding privacy-preventing pixel opening areas on the base substrate, and at least a portion of the orthographic projection of the first light-shielding layer on the base substrate is located around at least a portion of the orthographic projections of the privacy-preventing pixel opening areas on the base substrate;

[0124] A touch layer is produced on the side of the first light-shielding layer facing away from the base substrate, and the touch layer is reused as a second light-shielding layer. The orthographic projection of the second light-shielding layer on the base substrate defines a plurality of second opening areas, and the second opening areas at least partially overlap with the orthographic projections of the corresponding anti-peeping pixel opening areas on the base substrate. At least a portion of the orthographic projection of the second light-shielding layer on the base substrate is located around at least a portion of the orthographic projection of the anti-peeping pixel opening areas on the base substrate.

[0125] In the touch display panel manufactured using the manufacturing method provided by the embodiment of the present disclosure, a first light-shielding layer 31 and a second light-shielding layer 41 are provided on the side of the anti-peeping pixel opening area 20 facing away from the base substrate 10. The first light-shielding layer 31 defines a first opening area 30 corresponding to the anti-peeping pixel opening area 20, and the second light-shielding layer 41 defines a second opening area 40 corresponding to the anti-peeping pixel opening area 20. Light emitted from the anti-peeping pixel opening area 20 passes through the first opening area 30 and the second opening area 40 in sequence and exits the touch display panel, thereby realizing the anti-peeping mode of the touch display panel.

[0126] In more detail, in the touch display panel manufactured using the manufacturing method provided by the embodiment of the present disclosure, the first light-shielding layer 31 defines a plurality of first opening areas 30, and the orthographic projection of the first opening area 30 on the base substrate 10 at least partially overlaps with the orthographic projection of the corresponding anti-peeping pixel opening area 20 on the base substrate 10. At least part of the orthographic projection of the first light-shielding layer 31 on the base substrate 10 is located around at least part of the orthographic projection of the anti-peeping pixel opening area 20 on the base substrate 10, so that the first light-shielding layer 31 limits the light emitted from the anti-peeping pixel opening area 20, so that the light can only be emitted from the first opening area 30 to the light-emitting side of the touch display panel. At the same time, the orthographic projection of the second light-shielding layer 41 on the base substrate 10 defines a plurality of second opening areas 40, and the second opening areas 40 at least partially overlap with the orthographic projections of the corresponding anti-peeping pixel opening areas 20 on the base substrate 10. At least a portion of the orthographic projection of the second light-shielding layer 41 on the base substrate 10 is located around at least a portion of the orthographic projection of the anti-peeping pixel opening areas 20 on the base substrate 10, so that the second light-shielding layer 41 further defines the transmission path of the light emitted from the first opening area 30, so that the light can only be emitted from the second opening area 40 to the light-emitting side of the touch display panel, thereby enabling the touch display panel to achieve an anti-peeping mode through the anti-peeping sub-pixels.

[0127] In the touch display panel manufactured using the manufacturing method provided by the embodiment of the present disclosure, the first light-shielding layer 31 will not be arranged on the light-emitting side of the shared pixel opening area 21, that is, the orthographic projection of the first light-shielding layer 31 on the base substrate 10 does not overlap with the orthographic projection of the shared pixel opening area 21 on the base substrate 10, and the orthographic projection of the first light-shielding layer 31 on the base substrate 10 will not be located around the orthographic projection of the shared pixel opening area 21 on the base substrate 10. Therefore, the first light-shielding layer 31 will not affect the transmission path of the light emitted from the shared pixel opening area 21, so that the touch display panel can realize the shared mode through the shared sub-pixel.

[0128] Moreover, in the touch display panel manufactured by the manufacturing method provided by the embodiment of the present disclosure, the touch layer located on the side of the first shading layer 31 facing away from the base substrate 10 is reused as the second shading layer 41, thereby avoiding the formation of a second shading layer 41 specifically for shading in the touch display panel, reducing the number of film layers inside the touch display panel, optimizing the internal structure of the touch display panel, and solving the problems of complex structure, large product thickness, and high manufacturing cost when the display product realizes the switching function between the anti-peep mode and the shared screen information mode.

[0129] It should be noted that the "same layer" in the embodiment of the present disclosure may refer to a film layer on the same structural layer. Or, for example, a film layer in the same layer may be a film layer formed by using the same film forming process to form a specific pattern, and then patterning the film layer using the same mask through a single composition process to form a layer structure. Depending on the specific pattern, a single composition process may include multiple exposure, development or etching processes, and the specific pattern in the formed layer structure may be continuous or discontinuous. These specific patterns may also be at different heights or have different thicknesses.

[0130] In the various method embodiments of the present disclosure, the serial numbers of the steps cannot be used to limit the order of the steps. For ordinary technicians in this field, without paying any creative work, changes to the order of the steps are also within the scope of protection of the present disclosure.

[0131] It should be noted that the various embodiments in this specification are described in a progressive manner. Similar parts between the various embodiments can be referred to in conjunction with each other. Each embodiment focuses on the differences from other embodiments. In particular, the method embodiments are described briefly because they are generally similar to the product embodiments. For relevant parts, refer to the description of the product embodiments.

[0132] Unless otherwise defined, the technical or scientific terms used in this disclosure should have the usual meanings understood by persons of ordinary skill in the field to which this disclosure belongs. The words "first", "second" and similar terms used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect", "couple" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0133] It will be understood that when an element such as a layer, film, region, or substrate is referred to as being “on” or “under” another element, it can be “directly on” or “under” the other element or intervening elements may be present.

[0134] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0135] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A touch display panel, comprising: A base substrate and a plurality of sub-pixels disposed on the base substrate, wherein the plurality of sub-pixels include a plurality of shared sub-pixels and a plurality of anti-peeping sub-pixels, and the anti-peeping sub-pixels include at least two anti-peeping pixel opening areas; The touch display panel further includes: a first light-shielding layer, wherein the first light-shielding layer defines a plurality of first opening areas, wherein orthographic projections of the first opening areas on the base substrate at least partially overlap with orthographic projections of corresponding privacy-preventing pixel opening areas on the base substrate, and at least a portion of the orthographic projection of the first light-shielding layer on the base substrate is located around at least a portion of the orthographic projection of the privacy-preventing pixel opening areas on the base substrate; a touch layer, the touch layer being located on a side of the first light-shielding layer facing away from the base substrate; The touch layer is reused as a second light-shielding layer, and the orthographic projection of the second light-shielding layer on the base substrate defines a plurality of second opening areas, and the second opening areas at least partially overlap with the orthographic projections of the corresponding anti-peep pixel opening areas on the base substrate, and at least part of the orthographic projection of the second light-shielding layer on the base substrate is located around at least part of the orthographic projection of the anti-peep pixel opening areas on the base substrate.

2. The touch display panel according to claim 1, wherein: The orthographic projection of the boundary of the privacy protection pixel opening area on the base substrate is surrounded by the orthographic projection of the corresponding boundary of the first opening area on the base substrate; or at least a portion of the orthographic projection of the boundary of the privacy protection pixel opening area on the base substrate is located inside the orthographic projection of the first light shielding layer on the base substrate; and / or, The orthographic projection of the boundary of the anti-peep pixel opening area on the base substrate is surrounded by the corresponding boundary of the second opening area; or, at least a portion of the orthographic projection of the boundary of the anti-peep pixel opening area on the base substrate is located inside the orthographic projection of the second light-shielding layer on the base substrate.

3. The touch display panel according to claim 1, wherein: The second opening areas corresponding to the anti-peeping pixel opening areas in the same anti-peeping sub-pixel are collectively regarded as an opening area unit; the touch layer includes a plurality of light-shielding portions, and the orthographic projections of the light-shielding portions on the base substrate define the corresponding opening area units; the plurality of light-shielding portions are independent of each other, or at least two of the light-shielding portions are coupled.

4. The touch display panel according to claim 3, wherein: The light-shielding portion includes at least two sub-portions, and the orthographic projections of the sub-portions on the substrate define the corresponding second opening area. The sub-portions belonging to the same light-shielding portion are independent of each other, or, among the sub-portions belonging to the same light-shielding portion, at least two of the sub-portions are coupled.

5. The touch display panel according to claim 3, wherein: The touch layer includes touch electrodes and dummy electrodes that are independent of each other, and at least one of the touch electrodes and the dummy electrodes includes the light shielding portion.

6. The touch display panel according to claim 5, wherein: The touch electrode includes an effective electrode portion; the light shielding portion included in the touch electrode is coupled to the effective electrode portion; and / or the light shielding portion included in the dummy electrode is independent of the effective electrode portion.

7. The touch display panel according to claim 6, wherein: The orthographic projection of the light shielding portion of the touch electrode on the base substrate is at least partially surrounded by the orthographic projection of the effective electrode portion on the base substrate; And / or, the orthographic projection of the light-shielding portion included in the virtual electrode on the base substrate is at least partially surrounded by the orthographic projection of the effective electrode portion on the base substrate.

8. The touch display panel according to claim 5, wherein: The virtual electrode includes an ineffective electrode portion; the light shielding portion included in the virtual electrode is coupled to at least a portion of the ineffective electrode portion; or the light shielding portion included in the virtual electrode is independent of the ineffective electrode portion.

9. The touch display panel according to claim 3, wherein: The orthographic projection of the light shielding portion on the base substrate forms a grid structure, and each grid in the grid structure defines a corresponding second opening area.

10. The touch display panel according to claim 9, wherein: The touch electrode includes an effective electrode portion, and at least a portion of the effective electrode portion is reused as the light shielding portion.

11. The touch display panel according to any one of claims 1 to 10, wherein: The touch layer includes at least one touch electrode layer, and the touch electrode layer is multiplexed as the second light shielding layer.

12. The touch display panel according to any one of claims 1 to 10, wherein: The touch layer includes a first touch electrode layer and a second touch electrode layer stacked in sequence in a direction away from the base substrate; the touch display panel includes two stacked layers of the second light-shielding layer, the first touch electrode layer is multiplexed into one layer of the second light-shielding layer, and the second touch electrode layer is multiplexed into another layer of the second light-shielding layer.

13. The touch display panel according to any one of claims 1 to 10, wherein: The touch layer includes a first touch electrode layer and a second touch electrode layer stacked in sequence in a direction away from the base substrate; the first touch electrode layer is multiplexed as a part of the second light-shielding layer, and the second touch electrode layer is multiplexed as another part of the second light-shielding layer.

14. The touch display panel according to claim 13, wherein: At least one second opening area is defined by an orthographic projection of the first touch electrode layer on the base substrate and an orthographic projection of the second touch electrode layer on the base substrate.

15. The touch display panel according to claim 1, wherein: The touch display panel further includes: a plurality of lens structures, the plurality of lens structures being located on a side of the touch layer facing away from the base substrate; the orthographic projections of the lens structures on the base substrate covering the orthographic projections of the corresponding anti-peep pixel opening areas on the base substrate.

16. The touch display panel according to claim 1, wherein: The plurality of shared sub-pixels are divided into a plurality of shared pixel units, each of which includes at least two of the shared sub-pixels; the plurality of anti-peeping sub-pixels are divided into a plurality of anti-peeping pixel units, each of which includes at least two of the anti-peeping sub-pixels; The multiple shared pixel units are divided into multiple shared pixel unit rows, the multiple anti-peeping pixel units are divided into multiple anti-peeping pixel unit rows, and the shared pixel unit rows and the anti-peeping pixel unit rows are alternately arranged.

17. A display device comprising the touch display panel according to any one of claims 1 to 16.

18. A method for manufacturing a touch display panel, comprising: Fabricating a plurality of sub-pixels on a base substrate, wherein the plurality of sub-pixels include a plurality of shared sub-pixels and a plurality of anti-peeping sub-pixels, and the anti-peeping sub-pixels include at least two anti-peeping pixel opening areas; A first light-shielding layer is formed on a side of the plurality of sub-pixels facing away from the base substrate, wherein the first light-shielding layer defines a plurality of first opening areas, wherein orthographic projections of the first opening areas on the base substrate at least partially overlap with orthographic projections of corresponding privacy-preventing pixel opening areas on the base substrate, and at least a portion of the orthographic projection of the first light-shielding layer on the base substrate is located around at least a portion of the orthographic projections of the privacy-preventing pixel opening areas on the base substrate; A touch layer is produced on the side of the first light-shielding layer facing away from the base substrate, and the touch layer is reused as a second light-shielding layer. The orthographic projection of the second light-shielding layer on the base substrate defines a plurality of second opening areas, and the second opening areas at least partially overlap with the orthographic projections of the corresponding anti-peeping pixel opening areas on the base substrate. At least a portion of the orthographic projection of the second light-shielding layer on the base substrate is located around at least a portion of the orthographic projection of the anti-peeping pixel opening areas on the base substrate.

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