Touch display substrate and touch display device

Abstract

A touch display substrate and a touch display device, wherein the touch display substrate comprises a display area and a non-display area, the display area comprises a first display area (A1) and a second display area (A2), the first display area (A1) is arranged at least on one side of the second display area (A2), the light transmittance of the second display area (A2) is greater than that of the first display area (A1), the touch display substrate comprises a substrate (10) and a display structure layer (20) and a touch structure layer (30) arranged on the substrate (10) in sequence, the first display area (A1) comprises a first touch component (31), the second display area (A2) comprises a second touch component (32), and the grid density of the first touch component (31) is greater than that of the second touch component (32).

Description

[0001] This application is a divisional application of the application filed on May 5, 2022, with application number 202280001101.3 and entitled "Touch Display Substrate and Touch Display Device". Technical Field

[0002] This disclosure relates to, but is not limited to, the field of touch display technology, specifically to a touch display substrate and a touch display device. Background Technology

[0003] Organic light-emitting diodes (OLEDs) are active light-emitting display devices with advantages such as self-illumination, wide viewing angle, high contrast, low power consumption, and extremely high response speed. With the continuous development of display technology, flexible display devices that use OLEDs as light-emitting devices and thin film transistors (TFTs) for signal control have become the mainstream products in the display field.

[0004] Currently, the concept of full-screen phones has received widespread attention in the mobile phone market and represents the future direction of mobile phone development. In these full-screen phones, the camera can be hidden so that the front viewable area is almost entirely screen, thus providing users with a superior display experience. Summary of the Invention

[0005] The following is an overview of the subject matter described in detail herein. This overview is not intended to limit the scope of the claims.

[0006] In a first aspect, this disclosure provides a touch display substrate, comprising: a display area and a non-display area, wherein the display area includes: a first display area and a second display area, the first display area surrounding at least one side of the second display area, and the light transmittance of the second display area being greater than that of the first display area; the touch display substrate includes: a substrate and a display structure layer and a touch structure layer sequentially disposed on the substrate; the first display area includes: a first touch component, and the second display area includes: a second touch component; the grid density of the first touch component is greater than that of the second touch component;

[0007] The display structure layer includes: a plurality of pixel circuits located in the first display area and a plurality of light-emitting elements located in the first display area and the second display area.

[0008] In some possible implementations, the light-emitting element includes: a first light-emitting element disposed in the first display area and a second light-emitting element disposed in the second display area, and the display structure layer includes: a plurality of first sub-pixels located in the first display area and a plurality of second sub-pixels located in the second display area;

[0009] The first sub-pixel includes: a first pixel circuit and a first light-emitting element connected to the first pixel circuit; the second sub-pixel includes: a second light-emitting element; and the first pixel circuit is disposed in the first display area.

[0010] Multiple second sub-pixels form a pixel island, and the distance between adjacent pixel islands is greater than the distance between adjacent second sub-pixels located in the same pixel island.

[0011] In some possible implementations, the second sub-pixel further includes a second pixel circuit connected to the second light-emitting element, the second pixel circuit being disposed in the second display area, and its orthographic projection on the substrate overlapping the orthographic projection of the pixel island on the substrate.

[0012] In some possible implementations, the subpixel density of the first display area is greater than the subpixel density of the second display area.

[0013] In some possible implementations, the first touch component includes: a plurality of first touch structures extending along a first direction and a plurality of second touch structures extending along a second direction, wherein the plurality of first touch structures are arranged along the second direction and the plurality of second touch structures are arranged along the first direction; the first touch structure includes: a plurality of first touch electrodes and a plurality of first connecting portions, and the second touch structure includes: a plurality of second touch electrodes and a plurality of second connecting portions, wherein the first direction and the second direction intersect, and the first touch electrodes and the second touch electrodes constitute a first touch electrode unit;

[0014] The first touch electrode, the second touch electrode, and one of the first connecting portions and the second connecting portions are disposed in the same layer, and are disposed in a different layer from the other connecting portion of the first connecting portion and the second connecting portion.

[0015] In some possible implementations, the touch structure layer includes: a first touch electrode, a second touch electrode, a first connecting portion, and a second connecting portion; the touch structure layer further includes: a buffer layer, a touch insulating layer, and a protective layer sequentially stacked on the substrate;

[0016] The first touch electrode, the second touch electrode, and the connection portion disposed in the same layer as the first touch electrode are located between the touch insulating layer and the protective layer, and the connection portion disposed in a different layer from the first touch electrode is located between the buffer layer and the touch insulating layer;

[0017] The first touch electrode and the second touch electrode are metal touch electrodes. The connecting part disposed in the same layer as the first touch electrode is a metal touch connecting part. The connecting part disposed in a different layer from the first touch electrode can be a metal touch connecting part or a transparent touch connecting part.

[0018] In some possible implementations, the first touch component includes: a plurality of first touch structures extending along a first direction and a plurality of second touch structures extending along the first direction, the plurality of first touch structures being arranged along a second direction and the plurality of second touch structures being arranged along a second direction; the first touch structure includes: a plurality of first touch electrodes and a plurality of first connecting portions, the second touch structure includes: a plurality of second touch electrodes and a plurality of second connecting portions, the first touch electrodes and the second touch electrodes are alternately arranged along the second direction, the first direction and the second direction intersect, and the first touch electrodes and the second touch electrodes constitute a first touch electrode unit;

[0019] The first touch electrode, the second touch electrode, the first connecting portion, and the second connecting portion are disposed in the same layer.

[0020] In some possible implementations, the touch structure layer includes: a first touch electrode, a second touch electrode, a first connecting portion, and a second connecting portion; the touch structure layer further includes: a buffer layer and a protective layer sequentially stacked on the substrate;

[0021] The first touch electrode, the second touch electrode, the first connecting portion, and the second connecting portion are located between the buffer layer and the protective layer;

[0022] The first touch electrode and the second touch electrode are metal touch electrodes, and the first connecting part and the second connecting part are metal touch connecting parts.

[0023] In some possible implementations, the second touch component includes: a plurality of third touch structures and a plurality of fourth touch structures, wherein the plurality of third touch structures are arranged along a second direction and the plurality of fourth touch structures are arranged along a first direction; each third touch structure includes: a plurality of third touch electrodes and a plurality of third connecting portions, and each fourth touch structure includes: a plurality of fourth touch electrodes and a plurality of fourth connecting portions; the third touch electrodes and the fourth touch electrodes constitute a second touch electrode unit; adjacent third touch structures are symmetrical with respect to a virtual straight line extending along the first direction, and adjacent fourth touch structures are symmetrical with respect to a virtual straight line extending along the first direction;

[0024] The third touch electrode, the fourth touch electrode, and one of the third and fourth connecting portions are disposed in the same layer, and are disposed in a different layer from the other connecting portion of the third and fourth connecting portions.

[0025] In some possible implementations, the third connecting portion extends along the first direction, and the fourth connecting portion extends along the second direction;

[0026] The shape of the third touch electrode includes an opening, and the openings of adjacent third touch electrodes arranged along the second direction face opposite directions. The fourth touch electrode is located between two third touch electrodes with openings facing each other along the second direction.

[0027] The shape of the area enclosed by the third touch electrode and the adjacent fourth touch electrode is adapted to the shape of the pixel island.

[0028] In some possible implementations, when the pixel island is square in shape, the third touch electrode includes: a first electrode portion, a second electrode portion, and a third electrode portion; the first electrode portion and the third electrode portion extend along a second direction, and the second electrode portion extends along a first direction;

[0029] One end of the first electrode portion is electrically connected to one end of the second electrode portion, and the other end of the first electrode portion is electrically connected to one end of the third electrode portion of an adjacent third touch electrode through a third connecting portion. The other end of the second electrode portion is electrically connected to one end of the third electrode portion, and the other end of the third electrode portion is electrically connected to one end of the first electrode portion of another adjacent third touch electrode through a third connecting portion.

[0030] The fourth touch electrode includes a fourth electrode portion, a fifth electrode portion, and a sixth electrode portion; the fourth electrode portion and the sixth electrode portion extend along a second direction, and the fifth electrode portion extends along a first direction;

[0031] The fourth electrode portion and the sixth electrode portion are arranged along the first direction, and the fifth electrode portion is electrically connected to the middle portion of the fourth electrode portion and the middle portion of the sixth electrode portion, respectively;

[0032] A virtual straight line extending along the second direction passes through the first electrode portion of the third touch electrode and the fourth electrode portion of the fourth touch electrode, and another virtual straight line extending along the second direction passes through the third electrode portion of the third touch electrode and the sixth electrode portion of the fourth touch electrode.

[0033] In some possible implementations, when the first touch component includes: a plurality of first touch structures extending along a first direction and a plurality of second touch structures extending along a second direction, the touch structure layer further includes: the third touch electrode, the fourth touch electrode, the third connecting portion and the fourth connecting portion;

[0034] The third touch electrode, the fourth touch electrode, and the connecting portion disposed in the same layer as the third touch electrode are located between the touch insulating layer and the protective layer, and the connecting portion disposed in a different layer from the third touch electrode is located between the buffer layer and the touch insulating layer;

[0035] The third touch electrode and the fourth touch electrode are metal touch electrodes, and the connecting part disposed in the same layer as the third touch electrode is a metal touch connecting part; or, the third touch electrode and the fourth touch electrode are transparent touch electrodes, and the connecting part disposed in the same layer as the third touch electrode is a transparent touch connecting part.

[0036] The connection part that is disposed in a different layer from the third touch electrode is a metal touch connection part or a transparent touch connection part.

[0037] In some possible implementations, the display structure layer includes: a circuit structure layer, the circuit structure layer including: a first pixel circuit and a second pixel circuit; the first pixel circuit and the second pixel circuit include: transistors; the circuit structure layer includes: a first planarization layer and a second planarization layer sequentially stacked on the substrate;

[0038] The first planarization layer includes: a first sub-planarization layer and a second sub-planarization layer, wherein the second sub-planarization layer is located on the side of the first sub-planarization layer away from the substrate;

[0039] The display structure layer further includes: the third touch electrode, the fourth touch electrode, the third connecting portion, and the fourth connecting portion;

[0040] The third touch electrode, the fourth touch electrode, and the connection portion disposed in the same layer as the third touch electrode are located between the second sub-planar layer and the second planar layer, and the connection portion disposed in a different layer from the third touch electrode is located between the first sub-planar layer and the second sub-planar layer;

[0041] The third touch electrode and the fourth touch electrode are transparent touch electrodes, and the third connecting part and the fourth connecting part are transparent touch connecting parts;

[0042] The orthographic projections of the third and fourth touch electrodes on the substrate at least partially overlap with the orthographic projection of the light-emitting layer on the substrate.

[0043] In some possible implementations, the display structure layer includes: an anode connection line;

[0044] When the first touch component includes: a plurality of first touch structures extending along a first direction and a plurality of second touch structures extending along a second direction, and the cathodes of adjacent light-emitting elements are spaced apart, the touch structure layer further includes: a third touch electrode, a fourth touch electrode and a connection portion disposed in the same layer as the third touch electrode, and the display structure layer further includes: a connection portion disposed in a different layer from the third touch electrode;

[0045] The third touch electrode, the fourth touch electrode, and the connecting portion disposed in the same layer as the third touch electrode are located between the touch insulation layer and the protective layer, and the connecting portion disposed in a different layer from the third touch electrode is disposed in the same layer as the anode connecting line;

[0046] The third touch electrode and the fourth touch electrode are metal touch electrodes, and the connecting part disposed in the same layer as the third touch electrode is a metal touch connecting part; or, the third touch electrode and the fourth touch electrode are transparent touch electrodes, and the connecting part disposed in the same layer as the third touch electrode is a transparent touch connecting part.

[0047] The connection portion that is disposed in a different layer from the third touch electrode is a transparent touch connection portion;

[0048] The connection portion, which is disposed on a different layer from the third touch electrode, is electrically connected to the connected touch electrode through vias formed in the second planarization layer, pixel definition layer, buffer layer, and touch insulating layer.

[0049] In some possible implementations, the display structure layer includes: an anode connection line;

[0050] When the first touch component includes: a plurality of first touch structures extending along a first direction and a plurality of second touch structures extending along a first direction, and the cathodes of adjacent light-emitting elements are spaced apart, the touch structure layer further includes: a third touch electrode, a fourth touch electrode and a connection portion disposed in the same layer as the third touch electrode, and the display structure layer further includes: a connection portion disposed in a different layer from the third touch electrode;

[0051] The third touch electrode, the fourth touch electrode, and the connecting portion disposed in the same layer as the third touch electrode are located between the buffer layer and the protective layer, and the connecting portion disposed in a different layer from the third touch electrode is disposed in the same layer as the anode connecting line;

[0052] The third touch electrode and the fourth touch electrode are metal touch electrodes, and the connecting part disposed in the same layer as the third touch electrode is a metal touch connecting part; or, the third touch electrode and the fourth touch electrode are transparent touch electrodes, and the connecting part disposed in the same layer as the third touch electrode is a transparent touch connecting part.

[0053] The connection portion that is disposed in a different layer from the third touch electrode is a transparent touch connection portion;

[0054] The connection portion, which is disposed in a different layer from the third touch electrode, is electrically connected to the connected touch electrode through vias formed in the second planarization layer, pixel definition layer, and buffer layer.

[0055] In some possible implementations, the display structure layer includes: an anode connection line;

[0056] When the first touch component includes: a plurality of first touch structures extending along a first direction and a plurality of second touch structures extending along a second direction, and the cathodes of adjacent light-emitting elements are spaced apart, the touch structure layer further includes: a connection portion disposed on a different layer from the third touch electrode, and the display structure layer further includes: a third touch electrode, a fourth touch electrode and a connection portion disposed on the same layer as the third touch electrode;

[0057] The connection portion, which is disposed in a different layer from the third touch electrode, is located between the buffer layer and the touch insulation layer. The third touch electrode, the fourth touch electrode, and the connection portion disposed in the same layer as the third touch electrode are disposed in the same layer as the anode connection line.

[0058] The third touch electrode and the fourth touch electrode are transparent touch electrodes. The connection part disposed in the same layer as the third touch electrode is a transparent touch connection part. The connection part disposed in a different layer from the third touch electrode is a transparent touch connection part or a metal touch connection part.

[0059] The connection portion, which is disposed in a different layer from the third touch electrode, is electrically connected to the connected touch electrode through vias formed in the second planarization layer, pixel definition layer, and buffer layer;

[0060] The orthographic projections of the third and fourth touch electrodes on the substrate at least partially overlap with the orthographic projection of the light-emitting layer on the substrate.

[0061] In some possible implementations, the second touch component includes: a plurality of third touch structures extending along a first direction and a plurality of fourth touch structures extending along the first direction; the plurality of third touch structures are arranged along a second direction, and the plurality of fourth touch structures are arranged along the second direction, with the third touch structures and the fourth touch structures alternately arranged along the second direction; each third touch structure includes: a plurality of third touch electrodes and a plurality of third connecting portions; each fourth touch structure includes: a plurality of fourth touch electrodes and a plurality of fourth connecting portions; the third touch electrodes and the fourth touch electrodes constitute a second touch electrode unit.

[0062] The third touch electrode, the fourth touch electrode, the third connecting part, and the fourth connecting part are arranged in the same layer.

[0063] In some possible implementations, when the second touch component includes: a plurality of first touch structures extending along a first direction and a plurality of second touch structures extending along a second direction, the touch structure layer further includes: the third touch electrode, the fourth touch electrode, the third connecting portion and the fourth connecting portion;

[0064] The third touch electrode, the fourth touch electrode, the third connecting portion, and the fourth connecting portion are located between the touch insulating layer and the protective layer;

[0065] The third touch electrode and the fourth touch electrode are metal touch electrodes, and the third connecting part and the fourth connecting part are metal touch connecting parts; or, the third touch electrode and the fourth touch electrode are transparent touch electrodes, and the third connecting part and the fourth connecting part are transparent touch connecting parts.

[0066] In some possible implementations, when the second touch component includes: a plurality of first touch structures extending along a first direction and a plurality of second touch structures extending along a first direction, the third touch electrode, the fourth touch electrode, the third connection portion and the fourth connection portion are located between the buffer layer and the protective layer;

[0067] The third touch electrode and the fourth touch electrode are metal touch electrodes, and the third connecting part and the fourth connecting part are metal touch connecting parts; or, the third touch electrode and the fourth touch electrode are transparent touch electrodes, and the third connecting part and the fourth connecting part are transparent touch connecting parts.

[0068] In some possible implementations, the display structure layer includes: an anode connection line;

[0069] The display structure layer further includes: the third touch electrode, the fourth touch electrode, the third connecting portion, and the fourth connecting portion;

[0070] The third touch electrode, the fourth touch electrode, the third connecting portion, and the fourth connecting portion are located between the anode connecting lines;

[0071] The third touch electrode and the fourth touch electrode are transparent touch electrodes, and the third connecting part and the fourth connecting part are transparent touch connecting parts;

[0072] The orthographic projections of the third and fourth touch electrodes on the substrate at least partially overlap with the orthographic projection of the light-emitting layer on the substrate.

[0073] In some possible implementations, the third touch structure and the fourth touch structure are symmetrical with respect to the virtual straight line extending in the first direction;

[0074] The shape of the area enclosed by the third touch structure and the adjacent fourth touch structure is adapted to the shape of the pixel island.

[0075] In some possible implementations, when the pixel island is circular, the third touch electrode and the fourth touch electrode are strip electrodes, and a virtual straight line extending along the second direction passes through the third touch electrode and the fourth touch electrode, and the virtual straight line extending along the second direction passes through the third connecting portion and the fourth connecting portion.

[0076] The third connecting portion and the fourth connecting portion include: a first straight connecting portion, a second straight connecting portion, a first non-straight connecting portion and a second non-straight connecting portion, wherein the first straight connecting portion and the second straight connecting portion extend along a second direction and are arranged along a first direction;

[0077] One end of the first straight connection portion is connected to one end of the first non-straight connection portion, and the other end of the first straight connection portion is connected to one end of the second non-straight connection portion.

[0078] One end of the second straight connection portion is connected to the other end of the first non-straight connection portion, and one end of the second straight connection portion is connected to the other end of the second non-straight connection portion.

[0079] The first non-linear connection portion and the second non-linear connection portion are symmetrical with respect to the virtual straight line extending along the first direction;

[0080] The shape of the first non-linear connection portion includes: an arc shape, and a broken line shape composed of multiple straight line segments.

[0081] In some possible implementations, when the pixel island is circular, the third touch electrode and the fourth touch electrode are arc-shaped, and the third connecting portion and the fourth connecting portion are straight-lined and extend along a first direction.

[0082] In some possible implementations, the display structure layer further includes an anode connecting line, which includes: an arc connecting portion and a straight connecting portion arranged at intervals; the bending direction of the arc connecting portion is consistent with the bending direction of the third touch electrode, and the arc connecting portion is arranged parallel to the third touch electrode, and the straight connecting portion is arranged parallel to the third connecting portion and the fourth connecting portion.

[0083] In some possible implementations, the pixel island is located within the area enclosed by the third touch electrode and the adjacent fourth touch electrode.

[0084] In some possible implementations, the density of the first touch electrode unit is greater than the density of the second touch electrode unit.

[0085] Among some possible implementations, the following are also included: a first touch trace, a second touch trace, a third touch trace, and a fourth touch trace located in the display structure layer;

[0086] The first touch trace is electrically connected to the first touch structure, the second touch trace is electrically connected to the second touch structure, the third touch trace is electrically connected to the third touch structure, and the fourth touch trace is electrically connected to the fourth touch structure.

[0087] When the third touch electrode and the fourth touch electrode are transparent electrodes, the third touch trace and the fourth touch trace include: a trace portion and a compensation portion, wherein the width of the compensation portion is greater than the width of the trace portion;

[0088] The width of the trace portion is greater than or equal to the width of the first touch trace and the second touch trace.

[0089] In some possible implementations, the following are also included: a light filter structure layer located on the side of the touch structure layer away from the display structure layer, the light filter structure layer including: a light filter layer and a black matrix layer; the display structure layer including: a circuit structure layer and a light emission structure layer sequentially stacked on the substrate, the light emission structure layer including: a pixel definition layer and a light emission element, the light emission element including: an anode, a light emission layer and a cathode;

[0090] The orthographic projection of the filter layer on the substrate at least partially overlaps with the orthographic projection of the light-emitting layer of the light-emitting element on the substrate, and the orthographic projection of the black matrix layer on the substrate at least partially overlaps with the orthographic projection of the pixel definition layer on the substrate;

[0091] The orthographic projection of the black matrix layer on the substrate at least partially overlaps with the orthographic projection of the metal touch electrode and / or the metal touch connector on the substrate.

[0092] In some possible implementations, it further includes: an encapsulation layer and an adhesive layer disposed between the display structure layer and the touch structure layer; the encapsulation layer includes: a first inorganic encapsulation layer, a second organic encapsulation layer and a third inorganic encapsulation layer sequentially stacked on the display structure layer;

[0093] The encapsulation layer is located on the side of the adhesive layer closer to the substrate, and its orthographic projection on the substrate covers the pixel islands and the area between adjacent pixel islands;

[0094] The adhesive layer includes: optically transparent adhesive.

[0095] In some possible implementations, when the second touch component includes a transparent touch electrode and / or a transparent touch connector, the transparent touch electrode and the transparent touch connector are manufactured using a cryogenic sputtering process.

[0096] In some possible implementations, the display structure layer further includes: an anode connection line, the pixel circuit including a second pixel circuit disposed in the first display area, the second pixel circuit being connected to the second light-emitting element through the anode connection line, the anode connection line including a transparent conductor.

[0097] In some possible implementations, the display structure layer includes: a circuit structure layer and a light-emitting structure layer sequentially stacked on the substrate; the circuit structure layer includes: a first pixel circuit and a second pixel circuit; the first pixel circuit and the second pixel circuit include: transistors;

[0098] The circuit structure layer includes: an active layer, a first insulating layer, a gate electrode, a second insulating layer, a source / drain electrode, a first planarization layer, an anode connection line, and a second planarization layer, which are sequentially stacked on the substrate.

[0099] The light-emitting element includes an anode, a light-emitting layer, and a cathode, and the light-emitting structure layer includes a first light-emitting element and a second light-emitting element.

[0100] In some possible implementations, the first planarization layer includes: a first sub-planarization layer and a second sub-planarization layer, wherein the second sub-planarization layer is located on the side of the first sub-planarization layer away from the substrate;

[0101] The anode connection line includes: a first anode connection line and a second anode connection line disposed in different layers, wherein the first anode connection line is located between the first sub-planarization layer and the second sub-planarization layer, and the second anode connection line is located between the second sub-planarization layer and the second planarization layer.

[0102] In some possible implementations, the cathode of the second light-emitting element has a planar structure;

[0103] Alternatively, the display structure layer may further include: a cathode connecting line, wherein the cathodes of the plurality of second light-emitting elements are block-shaped structures and are spaced apart, and the cathodes of adjacent second light-emitting elements are electrically connected through the cathode connecting line, wherein the cathode connecting line is disposed in the same layer as the cathode and is a transparent conductor.

[0104] In some possible implementations, the first display area includes a normal display area and a transition display area, the normal display area surrounding at least one side of the transition display area, the transition display area surrounding at least one side of the second display area, and the light-emitting element in the second display area being electrically connected to the pixel circuit in the transition display area;

[0105] The subpixel density of the normal display area is greater than that of the transition display area, and the subpixel density of the transition display area is greater than that of the second display area.

[0106] In some possible implementations, the area of ​​the first sub-pixel is larger than the area of ​​the second sub-pixel.

[0107] Secondly, this disclosure also provides a touch display device, including: the aforementioned touch display substrate and a photosensor.

[0108] The orthographic projection of the photosensitive sensor onto the substrate at least partially overlaps with the second display area.

[0109] After reading and understanding the accompanying diagrams and detailed descriptions, the other aspects can be understood. Attached Figure Description

[0110] The accompanying drawings are used to provide an understanding of the technical solutions of this disclosure and form part of the specification. They are used together with the embodiments of this disclosure to explain the technical solutions of this disclosure and do not constitute a limitation on the technical solutions of this disclosure.

[0111] Figure 1 This is a schematic diagram showing the area division of the touch display substrate;

[0112] Figure 2 This is a schematic diagram of the structure of the touch display substrate provided in the embodiments of this disclosure;

[0113] Figure 3 A schematic cross-section of a touch display substrate along the AA direction provided for an exemplary embodiment. Figure 1 ;

[0114] Figure 4 A schematic cross-section of a touch display substrate along the AA direction provided for an exemplary embodiment. Figure 2 ;

[0115] Figure 5 A schematic cross-section of a touch display substrate along the AA direction provided for an exemplary embodiment. Figure 3 ;

[0116] Figure 6 A schematic cross-section of a touch display substrate along the AA direction provided for an exemplary embodiment. Figure 4 ;

[0117] Figure 7 A schematic cross-section of a touch display substrate along the AA direction provided for an exemplary embodiment. Figure 5 ;

[0118] Figure 8 A schematic cross-section of a touch display substrate along the AA direction provided for an exemplary embodiment. Figure 6 ;

[0119] Figure 9 A schematic cross-section of a touch display substrate along the AA direction provided for an exemplary embodiment. Figure 7 ;

[0120] Figure 10 A schematic cross-section of a touch display substrate along the AA direction provided for an exemplary embodiment. Figure 8 ;

[0121] Figure 11 A schematic cross-section of a touch display substrate along the AA direction provided for an exemplary embodiment. Figure 9 ;

[0122] Figure 12 A schematic cross-section of a touch display substrate along the AA direction provided for an exemplary embodiment. Figure 10 ;

[0123] Figure 13 A schematic cross-section of a touch display substrate along the AA direction provided for an exemplary embodiment. Figure 10 one;

[0124] Figure 14 A schematic cross-section of a touch display substrate along the AA direction provided for an exemplary embodiment. Figure 10 two;

[0125] Figure 15 A schematic cross-section of a touch display substrate along the AA direction provided for an exemplary embodiment. Figure 10 three;

[0126] Figure 16 A schematic cross-section of a touch display substrate along the AA direction provided for an exemplary embodiment. Figure 10 Four;

[0127] Figure 17 A schematic cross-section of a touch display substrate along the AA direction provided for an exemplary embodiment. Figure 10 five;

[0128] Figure 18 A schematic cross-section of a touch display substrate along the AA direction provided for an exemplary embodiment. Figure 10 six;

[0129] Figure 19 A schematic cross-section of a touch display substrate along the AA direction provided for an exemplary embodiment. Figure 10 seven;

[0130] Figure 20 A schematic cross-section of a touch display substrate along the AA direction provided for an exemplary embodiment. Figure 10 eight;

[0131] Figure 21 Top view of a first touch component provided in an exemplary embodiment Figure 1 ;

[0132] Figure 22 Top view of a first touch component provided in an exemplary embodiment Figure 2 ;

[0133] Figure 23 Top view of a second touch component provided in an exemplary embodiment Figure 1 ;

[0134] Figure 24 Top view of a second touch component provided in an exemplary embodiment Figure 2 ;

[0135] Figure 25 Top view of a second touch component provided in an exemplary embodiment Figure 3 ;

[0136] Figure 26A schematic diagram of the structure of a touch display substrate provided for an exemplary embodiment. Detailed Implementation

[0137] To make the objectives, technical solutions, and advantages of this disclosure clearer, the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. Note that the implementation methods can be carried out in many different forms. Those skilled in the art will readily understand that the methods and content can be transformed into various forms without departing from the spirit and scope of this disclosure. Therefore, this disclosure should not be construed as limited to the content described in the following embodiments. Without conflict, the embodiments and features in the embodiments of this disclosure can be arbitrarily combined with each other. To keep the following description of the embodiments of this disclosure clear and concise, detailed descriptions of some known functions and components have been omitted. The accompanying drawings of the embodiments of this disclosure only relate to the structures involved in the embodiments of this disclosure; other structures can be referred to with reference to general designs.

[0138] The scale of the figures in this disclosure can be used as a reference in actual processes, but is not limited thereto. For example, the aspect ratio of the channel, the thickness and spacing of each film layer, and the width and spacing of each signal line can be adjusted according to actual needs. The number of pixel units in the display substrate and the number of sub-pixels in each pixel unit are not limited to the numbers shown in the figures. The figures described in this disclosure are only schematic diagrams of the structure, and one aspect of this disclosure is not limited to the shapes or values ​​shown in the figures.

[0139] The ordinal numbers “first,” “second,” and “third” used in this specification are used to avoid confusion among the constituent elements, not to limit their quantity.

[0140] In this specification, for convenience, terms such as "middle," "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer" are used to indicate orientation or positional relationships in conjunction with the accompanying drawings. This is solely for the purpose of facilitating the description and simplification, and does not imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this disclosure. The positional relationships of the constituent elements may be appropriately varied depending on the orientation of each constituent element being described. Therefore, the use of terms not limited to those described in the specification may be appropriately replaced as needed.

[0141] In this specification, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they may refer to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection, an indirect connection via an intermediate component, or a connection within two components. Those skilled in the art will understand the specific meaning of these terms in this disclosure based on the specific circumstances.

[0142] In this specification, a transistor is a device that includes at least three terminals: a gate electrode, a drain electrode, and a source electrode. A transistor has a channel region between the drain electrode (drain electrode terminal, drain region, or drain electrode) and the source electrode (source electrode terminal, source region, or source electrode), and current can flow through the drain electrode, the channel region, and the source electrode. Note that in this specification, the channel region refers to the region through which current primarily flows.

[0143] In this specification, the first electrode can be the drain electrode and the second electrode can be the source electrode, or vice versa. In cases where transistors with opposite polarities are used or the current direction changes during circuit operation, the functions of the "source electrode" and "drain electrode" may sometimes be interchanged. Therefore, in this specification, the "source electrode" and "drain electrode" can be interchanged.

[0144] In this specification, "electrical connection" includes the situation where components are connected together by elements that have a certain electrical function. There are no particular limitations on what constitutes an "electrical function," as long as it allows for the transmission and reception of electrical signals between the connected components. Examples of "electrical functions" include not only electrodes and wiring, but also switching elements such as transistors, resistors, inductors, capacitors, and other elements with various functions.

[0145] In this specification, "parallel" refers to the state where the angle formed by two straight lines is greater than or equal to -10° and less than 10°, and therefore also includes the state where the angle is greater than or equal to -5° and less than 5°. Similarly, "perpendicular" refers to the state where the angle formed by two straight lines is greater than or equal to 80° and less than 100°, and therefore also includes the state where the angle is greater than or equal to 85° and less than 95°.

[0146] In this specification, the terms "film" and "layer" may be interchanged. For example, "conductive layer" may sometimes be replaced with "conductive film." Similarly, "insulating film" may sometimes be replaced with "insulating layer."

[0147] In this specification, the term "same-layer arrangement" refers to a structure formed by patterning two (or more) structures through the same patterning process, and their materials may be the same or different. For example, the precursors forming multiple structures in a same-layer arrangement may be made of the same material, while the final materials may be the same or different.

[0148] In this specification, triangles, rectangles, trapezoids, pentagons, or hexagons are not strictly defined; they can be approximate triangles, rectangles, trapezoids, pentagons, or hexagons. Small deformations due to tolerances are possible, as are chamfers, curved edges, and other variations.

[0149] In this disclosure, “about” means a value that is not strictly limited and allows for process and measurement errors.

[0150] A full-screen phone consists of a backlit display area and a normal display area. Currently, the backlit display area of ​​a full-screen phone does not have touch functionality. As the area occupied by the camera increases, the lack of touch functionality in the backlit display area affects the usability of the full-screen phone and reduces its reliability.

[0151] Figure 1 This is a schematic diagram showing the area division of the touch display substrate. Figure 2 This is a schematic diagram of the touch display substrate. Figure 1 and Figure 2 As shown, the touch display substrate provided in this embodiment includes a display area and a non-display area. The display area includes a first display area A1 and a second display area A2, with the first display area A1 surrounding at least one side of the second display area A2. The touch display substrate includes a substrate 10 and a display structure layer 20 and a touch structure layer 30 sequentially disposed on the substrate. The first display area A1 includes a first touch component 31, and the second display area A2 includes a second touch component 32. The display structure layer includes a plurality of pixel circuits located in the first display area and a plurality of light-emitting elements located in the first and second display areas.

[0152] In an exemplary embodiment, the light transmittance of the second display area A2 is greater than that of the first display area A1, and the grid density of the first touch component 31 is greater than that of the grid density 32 of the second touch component.

[0153] In an exemplary embodiment, to achieve touch control, the first touch component is provided with multiple sensing electrodes and multiple driving electrodes. The structure formed by the multiple sensing electrodes and multiple driving electrodes in the first touch component includes multiple grids and is in a grid-like shape. Similarly, the second touch component is also provided with multiple sensing electrodes and multiple driving electrodes. The structure formed by the multiple sensing electrodes and multiple driving electrodes in the second touch component includes multiple grids and is in a grid-like shape. The grid density of the first touch component is greater than that of the second touch component, meaning that the number of grids in the first touch component per unit area is greater than the number of grids in the second touch component per unit area.

[0154] In this disclosure, such as Figure 2 As shown, the first touch component 31 is located in the touch structure layer 30, and the second touch component 32 is located in the display structure layer 20 and / or the touch structure layer 30. Figure 2 The following explanation is based on the example of the second touch component 32 being located in the touch structure layer 30.

[0155] In one exemplary embodiment, the substrate 10 may be a flexible substrate or a rigid substrate. The rigid substrate may include, but is not limited to, one or more of glass and quartz, and the flexible substrate may be, but is not limited to, one or more of polyethylene terephthalate, polyethylene terephthalate, polyetheretherketone, polystyrene, polycarbonate, polyarylate, polyarylate, polyimide, polyvinyl chloride, polyethylene, and textile fibers.

[0156] In one exemplary embodiment, the flexible substrate may include a first flexible material layer, a first inorganic material layer, a semiconductor layer, a second flexible material layer, and a second inorganic material layer stacked together. The first and second flexible material layers may be made of materials such as polyimide (PI), polyethylene terephthalate (PET), or a surface-treated polymer film. The first and second inorganic material layers may be made of materials such as silicon nitride (SiNx) or silicon oxide (SiOx) to improve the substrate's resistance to water and oxygen. The semiconductor layer may be made of amorphous silicon (a-Si).

[0157] In one exemplary embodiment, the pixel circuit may be a 3T1C, 4T1C, 5T1C, 5T2C, 6T1C, 7T1C or 8T1C structure, and this disclosure does not limit it in any way.

[0158] In one exemplary embodiment, the light-emitting device may be an organic light-emitting diode (OLED) or a quantum dot light-emitting diode (QLED). The OLED includes a first electrode (anode), a light-emitting layer, and a second electrode (cathode) stacked together. The anode is connected to the pixel circuit, the light-emitting layer is connected to the anode, and the cathode is connected to the light-emitting layer. The light-emitting layer emits light of the corresponding color under the drive of the anode and the cathode.

[0159] In one exemplary embodiment, the light-emitting layer may include stacked Hole Injection Layer (HIL), Hole Transport Layer (HTL), Electron Block Layer (EBL), Emitting Layer (EML), Hole Block Layer (HBL), Electron Transport Layer (ETL), and Electron Injection Layer (EIL).

[0160] In one exemplary embodiment, the hole injection layer of all sub-pixels can be a common layer connected together, the electron injection layer of all sub-pixels can be a common layer connected together, the hole transport layer of all sub-pixels can be a common layer connected together, the electron transport layer of all sub-pixels can be a common layer connected together, the hole blocking layer of all sub-pixels can be a common layer connected together, the light emission layers of adjacent sub-pixels can have a small overlap or can be isolated, and the electron blocking layers of adjacent sub-pixels can have a small overlap or can be isolated.

[0161] In one exemplary embodiment, the anode may be a transparent conductive material, such as indium tin oxide (ITO) or indium zinc oxide (IZO). The shape of the light-emitting element may be any one or more of triangles, squares, rectangles, rhombuses, trapezoids, parallelograms, pentagons, hexagons, and other polygons, without limitation herein.

[0162] In one exemplary embodiment, the cathode may be any one or more of magnesium (Mg), silver (Ag), aluminum (Al), copper (Cu) and lithium (Li), or may be an alloy made of any one or more of the aforementioned metals.

[0163] In one exemplary embodiment, the second display area A2 can be a light-transmitting display area. This light-transmitting display area can both display and transmit light.

[0164] In one exemplary embodiment, the shape of the second display area in a plane parallel to the display panel can be any one or more of the following: rectangle, polygon, circle, and ellipse. Figure 1 This explanation uses a circle as an example. For instance, when the second display area is circular, the diameter of the circle can be approximately 3mm to 5mm. Similarly, when the second display area is rectangular, the side length of the rectangle can be approximately 3mm to 5mm.

[0165] In one exemplary embodiment, the shape of the first display area A1 in a plane parallel to the display panel can be any one or more of the following: rectangle, polygon, circle, and ellipse.

[0166] In one exemplary embodiment, the area of ​​the first display area A1 may be larger than the area of ​​the second display area A2, or the area of ​​the first display area A1 may be equal to the area of ​​the second display area A2, or the area of ​​the first display area A1 may be smaller than the area of ​​the second display area A2. Figure 1 This explanation is based on the example where the area of ​​the first display area is larger than the area of ​​the second display area.

[0167] In one exemplary embodiment, the shape of the display area can be a rounded polygon or a circle. When the shape of the display area is a rounded polygon, the display area may further include a straight display boundary. Figure 1 This explanation uses a rounded rectangle as an example.

[0168] In one exemplary embodiment, the display area may include: data signal lines, scan signal lines, and light emission signal lines connected to the pixel circuitry. The non-display area may include: a timing controller, a data driving circuit, a scan driving circuit, and a light emission driving circuit.

[0169] In one exemplary embodiment, the timing controller can provide grayscale values ​​and control signals of specifications suitable for the data driving circuit to the data driving circuit, provide clock signals, scan start signals, etc. of specifications suitable for the scan driving circuit to the scan driving circuit, and provide clock signals, emission stop signals, etc. of specifications suitable for the light-emitting driving circuit to the light-emitting driving circuit.

[0170] In one exemplary embodiment, the data driving circuit may use grayscale values ​​and control signals received from a timing controller to generate a data voltage to be provided to a data signal line. For example, the data driving circuit may use a clock signal to sample the grayscale values ​​and apply the data voltage corresponding to the grayscale values ​​to the data signal line on a pixel-by-pixel basis.

[0171] In one exemplary embodiment, the scan driver circuit can generate scan signals to be provided to the scan signal lines by receiving clock signals, scan start signals, etc., from a timing controller. For example, the scan driver circuit can sequentially provide scan signals with on-level pulses to the scan signal lines. The scan driver circuit can be configured as a shift register and can generate scan signals by sequentially transmitting scan start signals, provided in the form of on-level pulses, to the next stage circuit under the control of a clock signal.

[0172] In one exemplary embodiment, the light-emitting driving circuit can generate a transmit signal to be provided to the light-emitting signal line by receiving a clock signal, a transmit stop signal, etc., from a timing controller. The light-emitting driving circuit can sequentially provide transmit signals with cutoff level pulses to the light-emitting signal line. For example, the light-emitting driving circuit can be configured as a shift register and can generate the light-emitting signal by sequentially transmitting the transmit stop signal in the form of cutoff level pulses to the next stage circuit under the control of a clock signal.

[0173] The touch display substrate provided in this disclosure includes a display area and a non-display area. The display area includes a first display area and a second display area, with the first display area surrounding at least one side of the second display area. The touch display substrate includes a substrate and a display structure layer and a touch structure layer sequentially disposed on the substrate. The first display area includes a first touch component, and the second display area includes a second touch component. The display structure layer includes a plurality of pixel circuits located in the first display area and a plurality of light-emitting elements located in the first and second display areas. The first touch component is located in the touch structure layer, and the second touch component is located in the display structure layer and / or the touch structure layer. This disclosure achieves the touch function of the second display area by setting a second touch component in the second display area, thereby improving the reliability of the touch display substrate.

[0174] In one exemplary embodiment, the light-emitting element includes a first light-emitting element disposed in a first display area and a second light-emitting element disposed in a second display area. The area of ​​the first light-emitting element may be larger than the area of ​​the second light-emitting element.

[0175] In one exemplary embodiment, the display structure layer may include a plurality of first sub-pixels located in a first display area and a plurality of second sub-pixels located in a second display area. Each first sub-pixel includes a first pixel circuit and a first light-emitting element connected to the first pixel circuit, and each second sub-pixel includes a second light-emitting element. The first pixel circuit is disposed in the first display area.

[0176] In one exemplary embodiment, a plurality of second sub-pixels constitute a pixel island. The distance between adjacent pixel islands is greater than the distance between adjacent second sub-pixels located within the same pixel island.

[0177] In one exemplary embodiment, the pixel island can be square or circular.

[0178] In one exemplary embodiment, the display structure layer may further include: an anode connection line, and the pixel circuit includes a second pixel circuit disposed in the first display area, the second pixel circuit being connected to the second light-emitting element via the anode connection line.

[0179] In one exemplary embodiment, the anode connection wire includes a transparent conductor. Exemplarily, the transparent conductor may be made of indium tin oxide (ITO) or indium zinc oxide (IZO).

[0180] In one exemplary embodiment, the second sub-pixel may further include a second pixel circuit connected to the second light-emitting element. The second pixel circuit is disposed in the second display area, and its orthographic projection onto the substrate overlaps with the orthographic projection of the pixel island onto the substrate.

[0181] In one exemplary embodiment, the area of ​​the second sub-pixel may be smaller than the area of ​​the first sub-pixel, and this disclosure does not impose any limitation thereon.

[0182] In one exemplary embodiment, the shape of the first sub-pixel and the second sub-pixel can be any one or more of triangles, squares, rectangles, rhombuses, trapezoids, parallelograms, pentagons, hexagons and other polygons, and the arrangement can be X-shaped, cross-shaped or triangular, etc., which are not limited herein.

[0183] In one exemplary embodiment, the shapes of the first sub-pixel and the second sub-pixel may be the same or different, and this disclosure does not limit them in any way.

[0184] In one exemplary embodiment, the subpixel density of the first display area is greater than that of the second display area, meaning the resolution of the first display area is greater than that of the second display area. Resolution (Pixels Per Inch, PPI) refers to the number of subpixels per unit area, also known as subpixel density. A higher PPI value indicates a higher density of image display, resulting in richer image detail. The resolution of the second display area is less than that of the first display area, meaning the number of light-emitting elements in the second display area per unit area is less than the number of light-emitting elements in the first display area.

[0185] In one exemplary embodiment, such as Figure 1 As shown, the first display area A1 includes a normal display area A11 and a transition display area A12; the normal display area A11 surrounds at least one side of the transition display area A12, the transition display area A12 surrounds at least one side of the second display area A2, and the light-emitting element in the second display area A2 is electrically connected to the pixel circuit in the transition display area A12.

[0186] In one exemplary embodiment, the subpixel density of the normal display area can be greater than that of the transition display area, that is, the resolution of the normal display area is greater than that of the transition display area.

[0187] In one exemplary embodiment, the subpixel density of the transition display area may be greater than that of the second display area, that is, the resolution of the transition display area is greater than that of the second display area.

[0188] In one exemplary embodiment, the touch display substrate may include a plurality of regularly arranged pixel units on a plane parallel to the display panel. Each pixel unit may include 3 sub-pixels, 4 sub-pixels, or multiple sub-pixels. When the pixel unit includes 3 sub-pixels, the 3 sub-pixels include a first sub-pixel emitting a first color light, a second sub-pixel emitting a second color light, and a third sub-pixel emitting a third color light. When the pixel unit includes 4 sub-pixels, the 4 sub-pixels include a first sub-pixel emitting a first color light, a second sub-pixel emitting a second color light, a third sub-pixel emitting a third color light, and a fourth sub-pixel emitting a fourth color light. The 4 sub-pixels are all square in shape and arranged in a square manner.

[0189] In one exemplary embodiment, a pixel unit may include a red sub-pixel R, a green sub-pixel G, a blue sub-pixel B, a cyan sub-pixel, a magenta sub-pixel, a yellow sub-pixel, and a white sub-pixel.

[0190] In one exemplary embodiment, when a pixel unit includes three sub-pixels, the three rectangular sub-pixels can be arranged side by side in a horizontal direction or side by side in a vertical direction.

[0191] In one exemplary embodiment, when a pixel unit comprises four sub-pixels, the four sub-pixels can take various shapes and be arranged in various ways. The four sub-pixels can be rectangular and arranged side-by-side, from left to right as: R sub-pixel, G sub-pixel, B sub-pixel, and G sub-pixel. Alternatively, the four sub-pixels can be pentagonal and hexagonal respectively, arranged side-by-side, with two pentagonal G sub-pixels located in the middle of the pixel unit, and the hexagonal R sub-pixels and hexagonal B sub-pixels located on either side of the G sub-pixels.

[0192] In one exemplary embodiment, the first touch component includes: a plurality of first touch structures extending along a first direction and a plurality of second touch structures extending along a second direction, wherein the plurality of first touch structures are arranged along the second direction and the plurality of second touch structures are arranged along the first direction; the first touch structure includes: a plurality of first touch electrodes and a plurality of first connecting portions, and the second touch structure includes: a plurality of second touch electrodes and a plurality of second connecting portions, wherein the first direction and the second direction intersect, and the first touch electrodes and the second touch electrodes constitute a first touch electrode unit;

[0193] The first touch electrode, the second touch electrode, and one of the first connecting parts and the second connecting parts are disposed in the same layer, and are disposed in a different layer from the other connecting part of the first connecting part and the second connecting part.

[0194] In one exemplary embodiment, the touch structure layer includes: a first touch electrode, a second touch electrode, a first connecting portion, and a second connecting portion; the touch structure layer further includes: a buffer layer, a touch insulating layer, and a protective layer sequentially stacked on a substrate;

[0195] The first touch electrode, the second touch electrode, and the connecting part disposed in the same layer as the first touch electrode are located between the touch insulation layer and the protective layer, and the connecting part disposed in a different layer from the first touch electrode is located between the buffer layer and the touch insulation layer.

[0196] The first touch electrode and the second touch electrode are metal touch electrodes. The connecting part disposed on the same layer as the first touch electrode is a metal touch connecting part. The connecting part disposed on a different layer from the first touch electrode can be a metal touch connecting part or a transparent touch connecting part.

[0197] In one exemplary embodiment, the first touch component includes: a plurality of first touch structures extending along a first direction and a plurality of second touch structures extending along the first direction, the plurality of first touch structures being arranged along a second direction, and the plurality of second touch structures being arranged along a second direction; the first touch structure includes: a plurality of first touch electrodes and a plurality of first connecting portions, the second touch structure includes: a plurality of second touch electrodes and a plurality of second connecting portions, the first touch electrodes and the second touch electrodes are alternately arranged along the second direction, the first direction and the second direction intersect, and the first touch electrodes and the second touch electrodes constitute a first touch electrode unit;

[0198] The first touch electrode, the second touch electrode, the first connecting part, and the second connecting part are arranged in the same layer.

[0199] In one exemplary embodiment, the touch structure layer includes: a first touch electrode, a second touch electrode, a first connecting portion, and a second connecting portion; the touch structure layer further includes: a buffer layer and a protective layer sequentially stacked on a substrate;

[0200] The first touch electrode, the second touch electrode, the first connecting part, and the second connecting part are located between the buffer layer and the protective layer;

[0201] The first and second touch electrodes are metal touch electrodes, and the first and second connecting parts are metal touch connecting parts.

[0202] In one exemplary embodiment, the second touch component includes: a plurality of third touch structures and a plurality of fourth touch structures, wherein the plurality of third touch structures are arranged along a second direction and the plurality of fourth touch structures are arranged along a first direction; each third touch structure includes: a plurality of third touch electrodes and a plurality of third connecting portions, and each fourth touch structure includes: a plurality of fourth touch electrodes and a plurality of fourth connecting portions; the third touch electrodes and the fourth touch electrodes constitute a second touch electrode unit; adjacent third touch structures are symmetrical with respect to a virtual straight line extending along the first direction, and adjacent fourth touch structures are symmetrical with respect to a virtual straight line extending along the first direction;

[0203] The third touch electrode, the fourth touch electrode, and one of the third and fourth connecting portions are disposed in the same layer, and are disposed in a different layer from the other connecting portion of the third and fourth connecting portions.

[0204] In one exemplary embodiment, the third connecting portion extends along the first direction, and the fourth connecting portion extends along the second direction;

[0205] The third touch electrode has an opening, and the openings of adjacent third touch electrodes arranged along the second direction face opposite directions. The fourth touch electrode is located between the two third touch electrodes with openings facing each other along the second direction.

[0206] The shape of the area enclosed by the third touch electrode and the adjacent fourth touch electrode is adapted to the shape of the pixel island.

[0207] In one exemplary embodiment, when the pixel island is square in shape, the third touch electrode includes: a first electrode portion, a second electrode portion, and a third electrode portion; the first electrode portion and the third electrode portion extend along a second direction, and the second electrode portion extends along a first direction;

[0208] One end of the first electrode portion is electrically connected to one end of the second electrode portion, and the other end of the first electrode portion is electrically connected to one end of the third electrode portion of an adjacent third touch electrode through the third connecting portion. The other end of the second electrode portion is electrically connected to one end of the third electrode portion, and the other end of the third electrode portion is electrically connected to one end of the first electrode portion of another adjacent third touch electrode through the third connecting portion.

[0209] The fourth touch electrode includes: a fourth electrode portion, a fifth electrode portion, and a sixth electrode portion; the fourth electrode portion and the sixth electrode portion extend along a second direction, and the fifth electrode portion extends along a first direction;

[0210] The fourth electrode section and the sixth electrode section are arranged along the first direction, and the fifth electrode section is electrically connected to the middle of the fourth electrode section and the middle of the sixth electrode section, respectively.

[0211] A virtual straight line extending along the second direction passes through the first electrode portion of the third touch electrode and the fourth electrode portion of the fourth touch electrode, and another virtual straight line extending along the second direction passes through the third electrode portion of the third touch electrode and the sixth electrode portion of the fourth touch electrode.

[0212] In an exemplary embodiment, when the first touch component includes: a plurality of first touch structures extending along a first direction and a plurality of second touch structures extending along a second direction, the touch structure layer further includes: a third touch electrode, a fourth touch electrode, a third connection portion and a fourth connection portion;

[0213] The third touch electrode, the fourth touch electrode, and the connecting part disposed in the same layer as the third touch electrode are located between the touch insulation layer and the protective layer, and the connecting part disposed in a different layer from the third touch electrode is located between the buffer layer and the touch insulation layer.

[0214] The third and fourth touch electrodes are metal touch electrodes, and the connecting part disposed in the same layer as the third touch electrode is a metal touch connecting part; or, the third and fourth touch electrodes are transparent touch electrodes, and the connecting part disposed in the same layer as the third touch electrode is a transparent touch connecting part.

[0215] The connection part that is disposed in a different layer from the third touch electrode is a metal touch connection part or a transparent touch connection part.

[0216] In one exemplary embodiment, the display structure layer includes: a circuit structure layer, the circuit structure layer including: a first pixel circuit and a second pixel circuit; the first pixel circuit and the second pixel circuit include: transistors; the circuit structure layer includes: a first planarization layer and a second planarization layer sequentially stacked on a substrate; the first planarization layer includes: a first sub-planarization layer and a second sub-planarization layer, the second sub-planarization layer being located on the side of the first sub-planarization layer away from the substrate.

[0217] The display structure layer also includes: a third touch electrode, a fourth touch electrode, a third connecting part, and a fourth connecting part;

[0218] The third touch electrode, the fourth touch electrode, and the connecting part disposed on the same layer as the third touch electrode are located between the second sub-planar layer and the second planar layer, and the connecting part disposed on a different layer from the third touch electrode is located between the first sub-planar layer and the second sub-planar layer.

[0219] The third and fourth touch electrodes are transparent touch electrodes, and the third and fourth connecting parts are transparent touch connecting parts;

[0220] The orthographic projections of the third and fourth touch electrodes onto the substrate at least partially overlap with the orthographic projection of the light-emitting layer onto the substrate.

[0221] In one exemplary embodiment, the display structure layer includes: an anode connection line;

[0222] When the first touch component includes: a plurality of first touch structures extending along a first direction and a plurality of second touch structures extending along a second direction, and the cathodes of adjacent light-emitting elements are spaced apart, the touch structure layer further includes: a third touch electrode, a fourth touch electrode and a connection portion disposed in the same layer as the third touch electrode, and the display structure layer further includes: a connection portion disposed in a different layer from the third touch electrode.

[0223] The third touch electrode, the fourth touch electrode, and the connecting part disposed in the same layer as the third touch electrode are located between the touch insulation layer and the protective layer, while the connecting part disposed in a different layer from the third touch electrode is disposed in the same layer as the anode connecting line.

[0224] The third and fourth touch electrodes are metal touch electrodes, and the connecting part disposed in the same layer as the third touch electrode is a metal touch connecting part; or, the third and fourth touch electrodes are transparent touch electrodes, and the connecting part disposed in the same layer as the third touch electrode is a transparent touch connecting part.

[0225] The connection part that is disposed in a different layer from the third touch electrode is a transparent touch connection part;

[0226] The connection portion, which is disposed on a different layer from the third touch electrode, is electrically connected to the connected touch electrode through vias formed in the second planarization layer, pixel definition layer, buffer layer, and touch insulating layer.

[0227] In one exemplary embodiment, the display structure layer includes: an anode connection line;

[0228] When the first touch component includes: a plurality of first touch structures extending along a first direction and a plurality of second touch structures extending along a first direction, and the cathodes of adjacent light-emitting elements are spaced apart, the touch structure layer further includes: a third touch electrode, a fourth touch electrode and a connection portion disposed in the same layer as the third touch electrode, and the display structure layer further includes: a connection portion disposed in a different layer from the third touch electrode.

[0229] The third touch electrode, the fourth touch electrode, and the connecting part disposed in the same layer as the third touch electrode are located between the buffer layer and the protective layer, and the connecting part disposed in a different layer from the third touch electrode is disposed in the same layer as the anode connecting line.

[0230] The third and fourth touch electrodes are metal touch electrodes, and the connecting part disposed in the same layer as the third touch electrode is a metal touch connecting part; or, the third and fourth touch electrodes are transparent touch electrodes, and the connecting part disposed in the same layer as the third touch electrode is a transparent touch connecting part.

[0231] The connection part that is disposed in a different layer from the third touch electrode is a transparent touch connection part;

[0232] The connection portion, which is disposed on a different layer from the third touch electrode, is electrically connected to the connected touch electrode through vias formed in the second planarization layer, pixel definition layer, and buffer layer.

[0233] In one exemplary embodiment, the display structure layer includes: an anode connection line;

[0234] When the first touch component includes: a plurality of first touch structures extending along a first direction and a plurality of second touch structures extending along a second direction, and the cathodes of adjacent light-emitting elements are spaced apart, the touch structure layer further includes: a connection portion disposed on a different layer from the third touch electrode, and the display structure layer further includes: a third touch electrode, a fourth touch electrode and a connection portion disposed on the same layer as the third touch electrode.

[0235] The connection portion, which is disposed in a different layer from the third touch electrode, is located between the buffer layer and the touch insulation layer. The third touch electrode, the fourth touch electrode, and the connection portion disposed in the same layer as the third touch electrode are disposed in the same layer as the anode connection line.

[0236] The third and fourth touch electrodes are transparent touch electrodes. The connecting part disposed on the same layer as the third touch electrode is a transparent touch connecting part, and the connecting part disposed on a different layer from the third touch electrode is a transparent touch connecting part or a metal touch connecting part.

[0237] The connection portion, which is disposed in a different layer from the third touch electrode, is electrically connected to the connected touch electrode through vias formed in the second planarization layer, pixel definition layer, and buffer layer.

[0238] The orthographic projections of the third and fourth touch electrodes onto the substrate at least partially overlap with the orthographic projection of the light-emitting layer onto the substrate.

[0239] In one exemplary embodiment, the second touch component includes: a plurality of third touch structures extending along a first direction and a plurality of fourth touch structures extending along the first direction, the plurality of third touch structures being arranged along a second direction, the plurality of fourth touch structures being arranged along a second direction, and the third touch structures and fourth touch structures being alternately arranged along the second direction; the third touch structure includes: a plurality of third touch electrodes and a plurality of third connecting portions, the fourth touch structure includes: a plurality of fourth touch electrodes and a plurality of fourth connecting portions, the third touch electrodes and fourth touch electrodes constituting a second touch electrode unit;

[0240] The third touch electrode, the fourth touch electrode, the third connecting part, and the fourth connecting part are arranged in the same layer.

[0241] In an exemplary embodiment, when the second touch component includes a plurality of first touch structures extending along a first direction and a plurality of second touch structures extending along a second direction, the touch structure layer further includes a third touch electrode, a fourth touch electrode, a third connection portion and a fourth connection portion;

[0242] The third touch electrode, the fourth touch electrode, the third connecting part, and the fourth connecting part are located between the touch insulating layer and the protective layer;

[0243] The third and fourth touch electrodes are metal touch electrodes, and the third and fourth connecting parts are metal touch connecting parts; or, the third and fourth touch electrodes are transparent touch electrodes, and the third and fourth connecting parts are transparent touch connecting parts.

[0244] In an exemplary embodiment, when the second touch component includes a plurality of first touch structures extending along a first direction and a plurality of second touch structures extending along a first direction, the third touch electrode, the fourth touch electrode, the third connection portion and the fourth connection portion are located between the buffer layer and the protective layer.

[0245] The third and fourth touch electrodes are metal touch electrodes, and the third and fourth connecting parts are metal touch connecting parts; or, the third and fourth touch electrodes are transparent touch electrodes, and the third and fourth connecting parts are transparent touch connecting parts.

[0246] In one exemplary embodiment, the display structure layer includes: an anode connection line;

[0247] The display structure layer also includes: a third touch electrode, a fourth touch electrode, a third connecting part, and a fourth connecting part;

[0248] The third touch electrode, the fourth touch electrode, the third connecting part, and the fourth connecting part are disposed in the same layer as the anode connecting line;

[0249] The third and fourth touch electrodes are transparent touch electrodes, and the third and fourth connecting parts are transparent touch connecting parts;

[0250] The orthographic projections of the third and fourth touch electrodes onto the substrate at least partially overlap with the orthographic projection of the light-emitting layer onto the substrate.

[0251] Figure 3 A schematic cross-section of a touch display substrate along the AA direction provided in an exemplary embodiment. Figure 1 , Figure 4 A schematic cross-section of a touch display substrate along the AA direction provided in an exemplary embodiment. Figure 2 , Figure 5 A schematic cross-section of a touch display substrate along the AA direction provided in an exemplary embodiment. Figure 3 , Figure 6 A schematic cross-section of a touch display substrate along the AA direction provided in an exemplary embodiment. Figure 4 , Figure 7 A schematic cross-section of a touch display substrate along the AA direction provided in an exemplary embodiment. Figure 5 , Figure 8 A schematic cross-section of a touch display substrate along the AA direction provided in an exemplary embodiment. Figure 6 , Figure 9 A schematic cross-section of a touch display substrate along the AA direction provided in an exemplary embodiment. Figure 7 , Figure 10 A schematic cross-section of a touch display substrate along the AA direction provided in an exemplary embodiment. Figure 8 , Figure 11 A schematic cross-section of a touch display substrate along the AA direction provided in an exemplary embodiment. Figure 9 , Figure 12 A schematic cross-section of a touch display substrate along the AA direction provided in an exemplary embodiment. Figure 10 , Figure 13 A schematic cross-section of a touch display substrate along the AA direction provided in an exemplary embodiment. Figure 10 one, Figure 14 A schematic cross-section of a touch display substrate along the AA direction provided in an exemplary embodiment. Figure 10 two, Figure 15 A schematic cross-section of a touch display substrate along the AA direction provided in an exemplary embodiment. Figure 10 three, Figure 16 A schematic cross-section of a touch display substrate along the AA direction provided in an exemplary embodiment. Figure 10 Four, Figure 17 A schematic cross-section of a touch display substrate along the AA direction provided in an exemplary embodiment. Figure 10 five, Figure 18 A schematic cross-section of a touch display substrate along the AA direction provided in an exemplary embodiment. Figure 10 six, Figure 19 A schematic cross-section of a touch display substrate along the AA direction provided in an exemplary embodiment. Figure 10 seven, Figure 20 A schematic cross-section of a touch display substrate along the AA direction provided in an exemplary embodiment. Figure 10 eight, Figure 21 Top view of a first touch component provided in an exemplary embodiment Figure 1 , Figure 22 Top view of a first touch component provided in an exemplary embodiment Figure 2 , Figure 23 Top view of a second touch component provided in an exemplary embodiment Figure 1 , Figure 24 Top view of a second touch component provided in an exemplary embodiment Figure 2 , Figure 25 Top view of a second touch component provided in an exemplary embodiment Figure 3 , Figure 26 A schematic diagram of the structure of a touch display substrate provided for an exemplary embodiment. Figures 3 to 7 , Figure 14 and Figure 15 This explanation uses the example of the second touch component being located in the touch structure layer. Figures 8 to 11 , Figures 16 to 19 This explanation uses the example of the second touch component being located in the display structure layer. Figure 12 , Figure 13 and Figure 20 The explanation will take the example of the second touch component being located in both the display structure layer and the touch structure layer. Figures 3 to 20 As shown, in one exemplary embodiment, the display structure layer 20 may include a circuit structure layer 21 and a light-emitting structure layer 22 sequentially stacked on the substrate 10. The circuit structure layer includes a first pixel circuit and a second pixel circuit, and the first pixel circuit and the second pixel circuit include a plurality of transistors 210. Each transistor includes an active layer, a gate electrode, and source / drain electrodes.

[0252] In one exemplary embodiment, such as Figures 3 to 20 As shown, the circuit structure layer includes: an active layer, a first insulating layer 211, a gate electrode, a second insulating layer 212, a source / drain electrode, a first planarization layer 213, an anode connection line, and a second planarization layer 214, which are sequentially stacked on the substrate 10.

[0253] In one exemplary embodiment, the active layer may be made of amorphous indium gallium zinc oxide (a-IGZO), zinc oxynitride (ZnON), indium zinc tin oxide (IZTO), amorphous silicon (a-Si), polycrystalline silicon (p-Si), hexathiophene, or polythiophene, etc. This disclosure is applicable to transistors manufactured based on oxide technology, silicon technology, or organic technology.

[0254] In one exemplary embodiment, the first insulating layer and the second insulating layer may be any one or more of silicon oxide (SiOx), silicon nitride (SiNx), and silicon oxynitride (SiON), and may be a single layer, multiple layers, or composite layers. The first insulating layer may be referred to as a gate insulating (GI) layer, and the second insulating layer may be referred to as an interlayer insulating (ILD) layer.

[0255] In one exemplary embodiment, the gate electrode and the source / drain electrode may be made of any one or more of the following metallic materials: silver (Ag), copper (Cu), aluminum (Al), titanium (Ti) and molybdenum (Mo), or alloys of the above metals, such as aluminum-neodymium alloy (AlNd) or molybdenum-niobium alloy (MoNb). They may be single-layer structures or multi-layer composite structures, such as Ti / Al / Ti.

[0256] In one exemplary embodiment, the first planarization layer and the second planarization layer may be made of organic materials such as polyimide, acrylic, or polyethylene terephthalate.

[0257] In one exemplary embodiment, as in one exemplary embodiment, such as Figures 3 to 20 As shown, the light-emitting structure layer may include: a first light-emitting element, a second light-emitting element, and a pixel definition layer 220. The light-emitting element may include: an anode 221, a light-emitting layer 222, and a cathode 223.

[0258] In one exemplary embodiment, such as Figures 3 to 20 As shown, a pixel opening is provided on the pixel definition layer 220, exposing an anode 221. A light-emitting layer 222 is disposed inside the pixel opening, and a cathode 223 is disposed on the light-emitting layer 222. The light-emitting layer 222 emits light of the corresponding color under the action of a voltage applied to the anode 221 and the cathode 223.

[0259] In one exemplary embodiment, the pixel definition layer 220 may be made of polyimide, acrylic, or polyethylene terephthalate.

[0260] In one exemplary embodiment, such as Figures 3 to 20 As shown, the pixel circuit is electrically connected to the anode 221 of the light-emitting element through the anode connection line 215.

[0261] In one exemplary embodiment, the cathode 223 of the plurality of second light-emitting elements can be a planar structure.

[0262] In one exemplary embodiment, the circuit structure layer further includes: a cathode connecting line, wherein the cathodes 223 of the plurality of second light-emitting elements are block structures and are spaced apart, and the cathodes 223 of adjacent second light-emitting elements are electrically connected through the cathode connecting line, and the cathode connecting line is disposed on the same layer as the cathodes 223.

[0263] In one exemplary embodiment, the cathode connection wire can be a transparent wire.

[0264] In this disclosure, Figures 3 to 11 as well as Figures 14 to 19 The following explanation uses the example of a cathode 223 with multiple light-emitting elements having a planar structure. Figures 3 to 11 as well as Figures 14 to 19 Alternatively, the cathodes 223 of multiple second light-emitting elements can be block-shaped and spaced apart, with the cathodes 223 of adjacent light-emitting elements electrically connected through cathode connecting lines. Figure 12 , Figure 13 and Figure 20 The following is an example of a multiple second light-emitting element whose cathodes 223 are block-shaped and spaced apart, with adjacent second light-emitting elements' cathodes 223 electrically connected by cathode connecting lines.

[0265] In one exemplary embodiment, combining Figures 3 to 13 as well as Figure 21The first touch component may include: a plurality of first touch structures 310 extending along a first direction D1 and a plurality of second touch structures 320 extending along a second direction D2, wherein the plurality of first touch structures 310 are arranged along the second direction D2 and the plurality of second touch structures 320 are arranged along the first direction D1.

[0266] In one exemplary embodiment, combining Figures 3 to 13 as well as Figure 21 The first touch structure 310 includes a plurality of first touch electrodes 311 and a plurality of first connecting portions 312, and the second touch structure 320 includes a plurality of second touch electrodes 321 and a plurality of second connecting portions 322. The first direction and the second direction intersect, and the first touch electrodes 311 and the second touch electrodes 321 constitute a first touch electrode unit.

[0267] In one exemplary embodiment, combining Figures 3 to 13 as well as Figure 21 The first touch electrode 311, the second touch electrode 321, and one of the first connecting portions 312 and the second connecting portion 322 are disposed in the same layer, and are disposed in a different layer from the other connecting portion of the first connecting portion 312 and the second connecting portion 322. Figures 3 to 13 as well as Figure 21 The following description is based on the example of the first connecting part 312 being arranged on the same layer as the first touch electrode 311 and the second touch electrode 321.

[0268] In one exemplary embodiment, the first touch electrode 311 and the second touch electrode 321 may be disposed on the same layer as the first connecting portion 312. The first touch electrode 311 and the first connecting portion 312 may be an integral structure that is interconnected, or multiple first touch electrodes 311, multiple second touch electrodes 321 and multiple second connecting portions 322 may be disposed on the same layer, and the second touch electrodes 321 and the second connecting portion 322 may be an integral structure that is interconnected.

[0269] In one exemplary embodiment, the first touch structure 310 may be a driving electrode (Tx) and the second touch structure 320 may be a sensing electrode (Rx), or the first touch structure 310 may be a sensing electrode (Rx) and the second touch structure 320 may be a driving electrode (Tx). This disclosure does not limit the scope of the invention in any way.

[0270] In one exemplary embodiment, the first touch electrode and the second touch electrode may have a rhombus shape, such as a regular rhombus, a horizontally elongated rhombus, or a vertically elongated rhombus. Alternatively, the first touch electrode and the second touch electrode may have any one or more of the following shapes: triangle, square, trapezoid, parallelogram, pentagon, hexagon, and other polygons, without limitation herein. Figure 21This explanation uses the example of the first and second touch electrodes being quadrilaterals.

[0271] In one exemplary embodiment, the number of the first touch structure 310 and the second touch structure 320 can be set according to the touch accuracy.

[0272] In one exemplary embodiment, combining Figures 3 to 13 as well as Figure 21 The touch structure layer may include: a first touch electrode 311, a second touch electrode 321, a first connecting portion 312 and a second connecting portion 322; the touch structure layer may also include: a buffer layer 351, a touch insulating layer 352 and a protective layer 353 sequentially stacked on the substrate 10.

[0273] In one exemplary embodiment, the buffer layer and the touch insulating layer may be any one or more of silicon oxide (SiOx), silicon nitride (SiNx), and silicon oxynitride (SiON), and may be a single layer, multiple layers, or composite layers.

[0274] In one exemplary embodiment, the protective layer may be a glass cover.

[0275] In one exemplary embodiment, combining Figures 3 to 13 as well as Figure 21 The first touch electrode 311, the second touch electrode 321, and the connection portion disposed in the same layer as the first touch electrode 311 are located between the touch insulating layer 352 and the protective layer 353, while the connection portion disposed in a different layer from the first touch electrode 311 is located between the buffer layer 351 and the touch insulating layer 352.

[0276] In one exemplary embodiment, combining Figures 3 to 13 as well as Figure 21 The first touch electrode 311 and the second touch electrode 321 are metal touch electrodes.

[0277] In one exemplary embodiment, combining Figures 3 to 13 as well as Figure 21 The connection part disposed on the same layer as the first touch electrode 311 is a metal touch connection part.

[0278] In one exemplary embodiment, combining Figures 3 to 13 as well as Figure 21 The connection part that is disposed in a different layer from the first touch electrode 311 can be a metal touch connection part or a transparent touch connection part.

[0279] In one exemplary embodiment, combining Figures 14 to 20 as well as Figure 22The first touch component may include: a plurality of first touch structures 310 extending along a first direction and a plurality of second touch structures 320 extending along a first direction, wherein the plurality of first touch structures 310 are arranged along a second direction and the plurality of second touch structures 320 are arranged along a second direction.

[0280] In one exemplary embodiment, combining Figures 14 to 20 as well as Figure 22 The first touch structure 310 includes a plurality of first touch electrodes 311 and a plurality of first connecting portions 312. The second touch structure 320 includes a plurality of second touch electrodes 321 and a plurality of second connecting portions 322. The first touch electrodes 311 and the second touch electrodes 321 are alternately arranged along a second direction. The first touch electrodes 311 and the second touch electrodes 321 constitute a first touch electrode 311 unit.

[0281] In one exemplary embodiment, combining Figures 14 to 20 as well as Figure 22 The first touch electrode 311, the second touch electrode 321, the first connecting part 312 and the second connecting part 322 are arranged in the same layer.

[0282] In one exemplary embodiment, combining Figures 14 to 20 as well as Figure 22 The touch structure layer may include: a first touch electrode 311, a second touch electrode 321, a first connecting portion 312 and a second connecting portion 322; the touch structure layer may also include: a buffer layer 351 and a protective layer 353 sequentially stacked on the substrate 10.

[0283] In one exemplary embodiment, the buffer layer may be any one or more of silicon oxide (SiOx), silicon nitride (SiNx), and silicon oxynitride (SiON), and may be a single layer, multiple layers, or a composite layer.

[0284] In one exemplary embodiment, the protective layer may be a glass cover.

[0285] In one exemplary embodiment, combining Figures 14 to 20 as well as Figure 22 The first touch electrode 311, the second touch electrode 321, the first connecting part 312 and the second connecting part 322 are located between the buffer layer 351 and the protective layer 353.

[0286] In one exemplary embodiment, combining Figures 14 to 20 as well as Figure 22 The first touch electrode 311 and the second touch electrode 321 are metal touch electrodes, and the first connecting part 312 and the second connecting part 322 are metal touch connecting parts.

[0287] In one exemplary embodiment, combining Figures 3 to 5 , Figures 10 to 13 , Figures 18 to 20 to Figure 23 The second touch component may include: a plurality of third touch structures 330 and a plurality of fourth touch structures 340, wherein the plurality of third touch structures 330 are arranged along the second direction D2 and the plurality of fourth touch structures 340 are arranged along the first direction D1; the third touch structure 330 includes: a plurality of third touch electrodes 331 and a plurality of third connecting portions 332, and the fourth touch structure 340 includes: a plurality of fourth touch electrodes 341 and a plurality of fourth connecting portions 342; the third touch electrodes 331 and the fourth touch electrodes 341 constitute the second touch electrode unit.

[0288] In one exemplary embodiment, combining Figures 3 to 5 , Figures 10 to 13 , Figures 18 to 20 to Figure 20 as well as Figure 23 As shown, one of the third touch electrode 331, the fourth touch electrode 341, the third connecting portion 332, and the fourth connecting portion 342 is disposed in the same layer, and is disposed in a different layer from the other connecting portion of the third connecting portion 332 and the fourth connecting portion 342.

[0289] In one exemplary embodiment, the third touch electrode 331 and the fourth touch electrode 341 may be disposed on the same layer as the third connecting portion 332. The third touch electrode 331 and the third connecting portion 332 may be an integral structure that is interconnected, or multiple third touch electrodes 331, multiple fourth touch electrodes 341 and multiple fourth connecting portions 342 may be disposed on the same layer, and the fourth touch electrodes 341 and the fourth connecting portions 342 may be an integral structure that is interconnected.

[0290] In one exemplary embodiment, the third touch structure 330 may be a driving electrode (Tx) and the fourth touch structure 340 may be a sensing electrode (Rx), or the third touch structure 330 may be a sensing electrode (Rx) and the fourth touch structure 340 may be a driving electrode (Tx), and this disclosure does not limit it in any way.

[0291] In one exemplary embodiment, the third touch electrode and the fourth touch electrode may have a rhombus shape, such as a regular rhombus, a horizontally elongated rhombus, or a vertically elongated rhombus. Alternatively, the third touch electrode and the fourth touch electrode may have any one or more of the following shapes: triangle, square, trapezoid, parallelogram, pentagon, hexagon, and other polygons, without limitation herein. Figure 21 This explanation uses the example of the third and fourth touch electrodes being quadrilaterals.

[0292] In one exemplary embodiment, the number of the third touch structure 330 and the fourth touch structure 340 can be set according to the touch accuracy.

[0293] In one exemplary embodiment, such as Figure 23 As shown, when the second touch component may include a plurality of third touch structures 330 extending along the first direction and a plurality of fourth touch structures 340 extending along the second direction, adjacent third touch structures are symmetrical with respect to the virtual straight line VL extending along the first direction, and adjacent fourth touch structures are symmetrical with respect to the virtual straight line VL extending along the first direction.

[0294] In one exemplary embodiment, such as Figure 23 As shown, the third connecting part extends along the first direction D1, and the fourth connecting part extends along the second direction D2.

[0295] In one exemplary embodiment, such as Figure 23 As shown, the shape of the third touch electrode includes an opening, the openings of adjacent third touch electrodes arranged along the second direction face opposite directions, and the fourth touch electrode is located between the two third touch electrodes with openings facing each other along the second direction.

[0296] In one exemplary embodiment, such as Figure 23 As shown, the shape of the area enclosed by the third touch electrode and the adjacent fourth touch electrode is adapted to the shape of the pixel island. For example, the shape of the third touch electrode can be an arc or a polygon missing one side.

[0297] In one exemplary embodiment, such as Figure 23 As shown, when the pixel island is square in shape, the second touch component may include multiple third touch structures 330 extending along a first direction and multiple fourth touch structures 340 extending along a second direction. The third touch electrode 331 may include a first electrode portion 331A, a second electrode portion 331B, and a third electrode portion 331C. The first electrode portion 331A and the third electrode portion 331C extend along the second direction, and the second electrode portion 331B extends along the first direction. One end of the first electrode portion 331A is electrically connected to one end of the second electrode portion 331B. The other end of the first electrode portion 331A is electrically connected to one end of the third electrode portion of an adjacent third touch electrode via a third connecting portion 332. The other end of the second electrode portion 331B is electrically connected to one end of the third electrode portion 331C. The other end of the third electrode portion 331C is electrically connected to one end of the first electrode portion 331A of another adjacent third touch electrode 331 via the third connecting portion 332.

[0298] In one exemplary embodiment, such as Figure 23As shown, when the second touch component may include a plurality of third touch structures 330 extending along a first direction and a plurality of fourth touch structures 340 extending along a second direction, the fourth touch electrode 341 may include a fourth electrode portion 341A, a fifth electrode portion 341B, and a sixth electrode portion 341C; the fourth electrode portion 341A and the sixth electrode portion 341C extend along the second direction, and the fifth electrode portion 341B extends along the first direction, wherein the fourth electrode portion 341A and the sixth electrode portion 341C are arranged along the first direction, and the fifth electrode portion 341B is electrically connected to the middle portion of the fourth electrode portion 341A and the middle portion of the sixth electrode portion 341C, respectively. A virtual straight line extending along the second direction passes through the first electrode portion 331A of the third touch electrode 331 and the fourth electrode portion 341A of the fourth touch electrode 341, and another virtual straight line extending along the second direction passes through the third electrode portion 331C of the third touch electrode 331 and the sixth electrode portion 341C of the fourth touch electrode 341.

[0299] In one exemplary embodiment, combining Figures 3 to 5 , Figures 10 to 13 , Figures 18 to 20 to Figure 23 When the first touch component includes a plurality of first touch structures 310 extending along a first direction and a plurality of second touch structures 320 extending along a second direction, the touch structure layer may further include a third touch electrode 331, a fourth touch electrode 341, a third connection portion 332 and a fourth connection portion 342.

[0300] In one exemplary embodiment, such as Figures 3 to 5 as well as Figures 10 to 13 As shown, the third touch electrode 331, the fourth touch electrode 341, and the connection portion disposed in the same layer as the third touch electrode 331 are located between the touch insulating layer 352 and the protective layer 353, while the connection portion disposed in a different layer from the third touch electrode 331 is located between the buffer layer 351 and the touch insulating layer 352. Figures 3 to 5 as well as Figures 10 to 13 The following explanation uses the example of the fourth connecting part and the third touch electrode 331 being arranged in different layers.

[0301] In one exemplary embodiment, the third touch electrode 331 and the fourth touch electrode 341 can be metal touch electrodes, and the connection portion disposed in the same layer as the third touch electrode 331 is a metal touch connection portion. When the third touch electrode 331 and the fourth touch electrode 341 can be metal touch electrodes, and the connection portion disposed in the same layer as the third touch electrode 331 is a metal touch connection portion, the third touch electrode, the fourth touch electrode, and the connection portion disposed in the same layer as the third touch electrode 331 can be manufactured using the same process as the first touch electrode and the second electrode, which can simplify the manufacturing process of the touch display substrate.

[0302] In one exemplary embodiment, the third touch electrode 331 and the fourth touch electrode 341 can be transparent touch electrodes, and the connecting portion disposed in the same layer as the third touch electrode 331 can be a transparent touch connecting portion. The fact that the third touch electrode 331 and the fourth touch electrode 341 can be transparent touch electrodes, and that the connecting portion disposed in the same layer as the third touch electrode 331 can be a transparent touch connecting portion, can improve the light transmittance of the second display area.

[0303] In one exemplary embodiment, the connection portion disposed in a different layer from the third touch electrode 331 can be a metal touch connection portion or a transparent touch connection portion.

[0304] In one exemplary embodiment, when the third touch electrode 331 and the fourth touch electrode 341 can be transparent touch electrodes, the connecting portion disposed in the same layer as the third touch electrode 331 can be a transparent touch connecting portion, and the connecting portion disposed in a different layer from the third touch electrode 331 can be a metal touch connecting portion, the area of ​​the third touch electrode 331 and the fourth touch electrode 341 can be larger than the area of ​​the fourth connecting portion 342. Having an area larger than the fourth connecting portion 342 can improve the light transmittance of the second display area.

[0305] In one exemplary embodiment, such as Figure 10 , Figure 11 and Figure 18 As shown, the first planarization layer 213 includes a first sub-planarization layer 213A and a second sub-planarization layer 213B, with the second sub-planarization layer 213B located on the side of the first sub-planarization layer 213A away from the substrate 10. The anode connection line 215 may include a first anode connection line 215A and a second anode connection line 215B disposed in dissimilar layers, with the first anode connection line 215A located between the first sub-planarization layer 213A and the second sub-planarization layer 213B, and the second anode connection line 215A located between the second sub-planarization layer 213B and the second planarization layer 214.

[0306] In one exemplary embodiment, such as Figure 10 , Figure 11 and Figure 18 As shown, the display structure layer may further include: a third touch electrode 331, a fourth touch electrode 341, a third connecting portion 332, and a fourth connecting portion 342. The third touch electrode 331, the fourth touch electrode 341, and the connecting portion disposed on the same layer as the third touch electrode 331 are disposed on the same layer as the second anode connecting line 215B, while the connecting portion disposed on a different layer from the third touch electrode 331 is disposed on the same layer as the first anode connecting line 215A.

[0307] In one exemplary embodiment, such as Figure 10 , Figure 11 and Figure 18As shown, the third touch electrode 331 and the fourth touch electrode 341 are transparent touch electrodes, and the third connecting part 332 and the fourth connecting part 342 are transparent touch connecting parts.

[0308] In one exemplary embodiment, such as Figure 10 , Figure 11 and Figure 18 As shown, the third and fourth touch structures are set on the same layer as the anode connection line and use the same transparent material, which reduces the stacking of metal layers in the second display area, reduces the overlapping capacitance and load, and allows the touch display substrate to have sufficient time to achieve brightness, thus improving the reliability of the touch display substrate.

[0309] In one exemplary embodiment, such as Figure 10 , Figure 11 and Figure 18 As shown, the orthographic projections of the third touch electrode 331 and the fourth touch electrode 341 on the substrate 10 at least partially overlap with the orthographic projection of the light-emitting layer 222 on the substrate 10. By placing the third touch electrode 331 and the fourth touch electrode 341 below the light-emitting layer 222, this disclosure can prevent the influence of the fabrication process of the light-emitting structure layer on the third touch electrode 331 and the fourth touch electrode 341, thereby improving the touch sensitivity of the touch display substrate.

[0310] In one exemplary embodiment, such as Figure 12 As shown, when the first touch component includes a plurality of first touch structures 310 extending along a first direction and a plurality of second touch structures 320 extending along a second direction, and the cathodes 223 of adjacent light-emitting elements are spaced apart, the touch structure layer may further include a third touch electrode 331, a fourth touch electrode 341 and a connection portion disposed on the same layer as the third touch electrode 331, and the display structure layer further includes a connection portion disposed on a different layer from the third touch electrode 331.

[0311] In one exemplary embodiment, such as Figure 12 As shown, the third touch electrode 331, the fourth touch electrode 341, and the connection portion disposed on the same layer as the third touch electrode 331 are located between the touch insulating layer 352 and the protective layer 353, while the connection portion disposed on a different layer from the third touch electrode 331 is disposed on the same layer as the anode connection line 215.

[0312] In one exemplary embodiment, the third touch electrode 331 and the fourth touch electrode 341 are metal touch electrodes, and the connecting portion disposed on the same layer as the third touch electrode 331 is a metal touch connecting portion.

[0313] In one exemplary embodiment, the third touch electrode 331 and the fourth touch electrode 341 are transparent touch electrodes, and the connection portion disposed on the same layer as the third touch electrode 331 is a transparent touch connection portion.

[0314] In one exemplary embodiment, the connection portion disposed in a different layer from the third touch electrode 331 is a transparent touch connection portion.

[0315] In one exemplary embodiment, such as Figure 12 As shown, the connection portion disposed on a different layer from the third touch electrode 331 is electrically connected to the connected touch electrode through vias formed in the second planarization layer 214, pixel definition layer 220, buffer layer 351 and touch insulating layer 352.

[0316] In one exemplary embodiment, such as Figure 20 As shown, when the first touch component includes: a plurality of first touch structures 310 extending along the first direction and a plurality of second touch structures 320 extending along the first direction, and the cathodes 223 of adjacent light-emitting elements are spaced apart, the touch structure layer further includes: a third touch electrode 331, a fourth touch electrode 341 and a connection portion disposed in the same layer as the third touch electrode 331, and the display structure layer further includes: a connection portion disposed in a different layer from the third touch electrode 331;

[0317] In one exemplary embodiment, such as Figure 20 As shown, the third touch electrode 331, the fourth touch electrode 341, and the connection part disposed in the same layer as the third touch electrode 331 are located between the buffer layer 351 and the protective layer 353, and the connection part disposed in a different layer from the third touch electrode 331 is disposed in the same layer as the anode connection line 215.

[0318] In one exemplary embodiment, the third touch electrode 331 and the fourth touch electrode 341 can be metal touch electrodes, and the connecting portion disposed on the same layer as the third touch electrode 331 can be a metal touch connecting portion.

[0319] In one exemplary embodiment, the third touch electrode 331 and the fourth touch electrode 341 may be transparent touch electrodes, and the connecting portion disposed on the same layer as the third touch electrode 331 may be a transparent touch connecting portion.

[0320] In one exemplary embodiment, the connection portion disposed in a different layer from the third touch electrode 331 is a transparent touch connection portion.

[0321] In one exemplary embodiment, the connection portion disposed on a different layer from the third touch electrode 331 is electrically connected to the connected touch electrode through a via formed in the second planarization layer 214, the pixel definition layer 220 and the buffer layer 351.

[0322] In one exemplary embodiment, such as Figure 13As shown, when the first touch component includes a plurality of first touch structures 310 extending along a first direction and a plurality of second touch structures 320 extending along a second direction, and the cathodes 223 of adjacent light-emitting elements are spaced apart, the touch structure layer may further include a connection portion disposed on a different layer from the third touch electrode 331, and the display structure layer may further include a third touch electrode 331, a fourth touch electrode 341 and a connection portion disposed on the same layer as the third touch electrode 331.

[0323] In one exemplary embodiment, such as Figure 13 As shown, the connection portion disposed on a different layer from the third touch electrode 331 can be located between the buffer layer 351 and the touch insulating layer 352, and the third touch electrode 331, the fourth touch electrode 341 and the connection portion disposed on the same layer as the third touch electrode 331 can be disposed on the same layer as the anode connection line 215.

[0324] In one exemplary embodiment, the third touch electrode 331 and the fourth touch electrode 341 are transparent touch electrodes, and the connection portion disposed on the same layer as the third touch electrode 331 is a transparent touch connection portion.

[0325] In one exemplary embodiment, the connection portion disposed in a different layer from the third touch electrode 331 is a transparent touch connection portion or a metal touch connection portion;

[0326] In one exemplary embodiment, such as Figure 13 As shown, the connection portion disposed on a different layer from the third touch electrode 331 is electrically connected to the connected touch electrode through vias formed in the second planarization layer 214, pixel definition layer 220 and buffer layer 351.

[0327] In one exemplary embodiment, such as Figure 13 As shown, the orthographic projections of the third touch electrode 331 and the fourth touch electrode 341 on the substrate 10 at least partially overlap with the orthographic projection of the light-emitting layer 222 on the substrate 10. By placing the third touch electrode 331 and the fourth touch electrode 341 below the light-emitting layer 222, this disclosure can prevent the influence of the fabrication process of the light-emitting structure layer on the third touch electrode 331 and the fourth touch electrode 341, thereby improving the touch sensitivity of the touch display substrate.

[0328] In one exemplary embodiment, such as Figures 6 to 9 , Figure 12 , Figures 14 to 17 , Figure 24 and Figure 25As shown, the second touch component may include: a plurality of third touch structures 330 extending along a first direction and a plurality of fourth touch structures 340 extending along a first direction, the plurality of third touch structures 330 being arranged along a second direction, the plurality of fourth touch structures 340 being arranged along a second direction, and the third touch structures 330 and the fourth touch structures 340 being alternately arranged along the second direction.

[0329] In one exemplary embodiment, such as Figures 6 to 9 , Figure 12 , Figures 14 to 17 , Figure 24 and Figure 25 As shown, the third touch structure 330 may include a plurality of third touch electrodes 331 and a plurality of third connecting portions 332, and the fourth touch structure 340 includes a plurality of fourth touch electrodes 341 and a plurality of fourth connecting portions 342. The third touch electrodes 331 and the fourth touch electrodes 341 constitute the second touch electrode 321 unit.

[0330] In one exemplary embodiment, such as Figures 6 to 9 , Figure 12 , Figures 14 to 17 , Figure 24 and Figure 25 As shown, the third touch electrode 331, the fourth touch electrode 341, the third connecting part 332, and the fourth connecting part 342 are arranged in the same layer.

[0331] In one exemplary embodiment, such as Figure 6 , Figure 7 as well as Figure 12 As shown, when the second touch component includes a plurality of first touch structures 310 extending along a first direction and a plurality of second touch structures 320 extending along a second direction, the touch structure layer further includes a third touch electrode 331, a fourth touch electrode 341, a third connecting portion 332, and a fourth connecting portion 342. The third touch electrode 331, the fourth touch electrode 341, the third connecting portion 332, and the fourth connecting portion 342 are located between the touch insulating layer 352 and the protective layer 353.

[0332] In one exemplary embodiment, the third touch electrode 331 and the fourth touch electrode 341 are metal touch electrodes, and the third connecting portion 332 and the fourth connecting portion 342 are metal touch connecting portions.

[0333] In one exemplary embodiment, the third touch electrode 331 and the fourth touch electrode 341 are transparent touch electrodes, and the third connecting portion 332 and the fourth connecting portion 342 are transparent touch connecting portions.

[0334] In one exemplary embodiment, such as Figure 14 and Figure 15As shown, when the second touch component includes a plurality of first touch structures 310 extending along a first direction and a plurality of second touch structures 320 extending along a first direction, the third touch electrode 331, the fourth touch electrode 341, the third connection portion 332 and the fourth connection portion 342 are located between the buffer layer 351 and the protective layer 353.

[0335] In one exemplary embodiment, the third touch electrode 331 and the fourth touch electrode 341 are metal touch electrodes, and the third connecting portion 332 and the fourth connecting portion 342 are metal touch connecting portions.

[0336] In one exemplary embodiment, the third touch electrode 331 and the fourth touch electrode 341 are transparent touch electrodes, and the third connecting portion 332 and the fourth connecting portion 342 are transparent touch connecting portions.

[0337] In one exemplary embodiment, such as Figure 8 , Figure 9 , Figure 16 and Figure 17 As shown, when the second touch component includes a plurality of first touch structures 310 extending along a first direction and a plurality of second touch structures 320 extending along a first direction, the display structure layer further includes a third touch electrode 331, a fourth touch electrode 341, a third connecting portion 332, and a fourth connecting portion 342. The third touch electrode 331, the fourth touch electrode 341, the third connecting portion 332, and the fourth connecting portion 342 are disposed on the same layer as the anode connecting line 215.

[0338] In one exemplary embodiment, the third touch electrode 331 and the fourth touch electrode 341 are transparent touch electrodes, and the third connecting portion 332 and the fourth connecting portion 342 are transparent touch connecting portions. The transparent nature of the third touch electrode 331 and the fourth touch electrode 341, and the transparent nature of the third connecting portion 332 and the fourth connecting portion 342, ensures the light transmittance of the second display area.

[0339] In one exemplary embodiment, the orthographic projections of the third touch electrode 331 and the fourth touch electrode 341 onto the substrate 10 at least partially overlap with the orthographic projection of the light-emitting layer 222 onto the substrate 10. By placing the third touch electrode 331 and the fourth touch electrode 341 below the light-emitting layer 222, this disclosure can prevent the fabrication process of the light-emitting structure layer from affecting the third touch electrode 331 and the fourth touch electrode 341, thereby improving the touch sensitivity of the touch display substrate.

[0340] In an exemplary implementation, such as Figure 21 As shown, the grid in the first touch component includes a grid formed by the intersection of a plurality of first touch structures 310 extending along a first direction D1 and a plurality of second touch structures 320 extending along a second direction D2. Figure 21 The grid in the first touch component surrounds at least one first sub-pixel.

[0341] In an exemplary implementation, such as Figure 23 As shown, the grid in the second touch assembly includes: a grid formed between any third touch electrode 331 and a fourth touch electrode 341 disposed opposite to the opening of the third touch electrode 331, and a grid formed between adjacent third connecting portions 332 arranged along the second direction D2 and two adjacent fourth touch electrodes 341 in the second touch structure located between the first touch structure where the adjacent third connecting portions 332 are located. Figure 23 In the fourth touch component, part of the grid surrounds the pixel island.

[0342] In one exemplary embodiment, such as Figure 24 and Figure 25 As shown, the third touch structure 330 and the fourth touch structure 340 are symmetrical with respect to the virtual straight line VL extending in the first direction, and the shape of the area enclosed by the third touch structure and the adjacent fourth touch structure is adapted to the shape of the pixel island.

[0343] In one exemplary embodiment, such as Figure 24 As shown, when the pixel island is circular, the third touch electrode 331 and the fourth touch electrode 341 are strip electrodes. A virtual straight line extending along the second direction passes through the third touch electrode 331 and the fourth touch electrode 341, and the virtual straight line extending along the second direction passes through the third connecting portion 332 and the fourth connecting portion 342.

[0344] In one exemplary embodiment, such as Figure 24 As shown, the third connecting portion 332 and the fourth connecting portion 342 include: a first straight connecting portion L1, a second straight connecting portion L2, a first non-straight connecting portion UL1, and a second non-straight connecting portion UL2. The first straight connecting portion L1 and the second straight connecting portion L2 extend along a second direction and are arranged along a first direction. One end of the first straight connecting portion L1 is connected to one end of the first non-straight connecting portion UL1, and the other end of the first straight connecting portion L2 is connected to one end of the second non-straight connecting portion UL2. One end of the second straight connecting portion L2 is connected to the other end of the first non-straight connecting portion UL1, and the other end of the second straight connecting portion L2 is connected to the other end of the second non-straight connecting portion UL2. The first non-straight connecting portion UL1 and the second non-straight connecting portion UL2 are symmetrical with respect to the virtual straight line extending along the first direction.

[0345] In one exemplary embodiment, such as Figure 24 As shown, the shape of the first non-linear connection portion may include: an arc shape or a broken line shape composed of multiple straight line segments.

[0346] In one exemplary embodiment, such as Figure 25 As shown, when the pixel island is circular, the third touch electrode 331 and the fourth touch electrode 341 are arc-shaped, and the third connecting part 332 and the fourth connecting part 342 are straight-line shaped and extend along the first direction.

[0347] In one exemplary embodiment, such as Figure 25 As shown, the third touch electrode 331 and the fourth touch electrode 341 are symmetrical with respect to the virtual straight line VL extending along the first direction.

[0348] In one exemplary embodiment, such as Figure 25 As shown, the anode connecting line includes: an arc connecting portion and a straight connecting portion arranged at intervals; the bending direction of the arc connecting portion is consistent with the bending direction of the third touch electrode 331, and the arc connecting portion is arranged parallel to the third touch electrode 331, while the straight connecting portion is arranged parallel to the third connecting portion 332 and the fourth connecting portion 342.

[0349] In one exemplary embodiment, the area enclosed by the third touch electrode 331 and the adjacent fourth touch electrode 341 can be square, circular or other shapes, which can be determined according to the shapes of the third touch electrode and the fourth touch electrode, and this disclosure does not limit it in any way.

[0350] In one exemplary embodiment, such as Figures 23 to 25 As shown, the pixel island is located in the area enclosed by the third touch electrode 331 and the adjacent fourth touch electrode 341.

[0351] In one exemplary embodiment, the density of the first touch electrode unit may be greater than the density of the second touch electrode unit.

[0352] In one exemplary embodiment, such as Figure 26 As shown, the touch display substrate may further include: a first touch trace 101, a second touch trace 102, a third touch trace 103, and a fourth touch trace 104 located in the display structure layer. The first touch trace is electrically connected to a first touch electrode 311, the second touch trace is electrically connected to a second touch electrode 321, the third touch trace is electrically connected to a third touch electrode 331, and the fourth touch trace is electrically connected to a fourth touch electrode 341.

[0353] In one exemplary embodiment, such as Figure 26As shown, when the third touch electrode 331 and the fourth touch electrode 341 are transparent electrodes, the third touch trace 103 includes: a trace portion 103A and a compensation portion 103B, the width of the compensation portion 103B being greater than the width of the trace portion 103A; and a second touch trace. The fourth touch trace 104 includes: a trace portion 104A and a compensation portion 104B, the width of the compensation portion 104B being greater than the width of the trace portion 104A.

[0354] In one exemplary embodiment, such as Figure 26 As shown, the width of the trace is greater than or equal to the width of the first touch trace and the second touch trace.

[0355] In this disclosure, the width of the compensation portion 103B of the third and fourth touch traces is greater than the width of the first and second touch traces, which can compensate for the load difference between the second touch component located in the second display area and the first touch component located in the first display area, and ensure the touch uniformity of the touch display substrate.

[0356] In one exemplary embodiment, such as Figures 3 to 20 As shown, the touch display substrate may further include a light filter layer located on the side of the touch structure layer 30 away from the display structure layer 20, the light filter layer including a light filter layer 42 and a black matrix layer 41.

[0357] In one exemplary embodiment, the orthographic projection of the filter layer 42 onto the substrate at least partially overlaps with the orthographic projection of the light-emitting layer of the light-emitting element onto the substrate.

[0358] In one exemplary embodiment, the orthographic projection of the black matrix layer 41 onto the substrate at least partially overlaps with the orthographic projection of the pixel definition layer onto the substrate.

[0359] In one exemplary embodiment, the orthographic projection of the black matrix layer 41 onto the substrate at least partially overlaps with the orthographic projection of the metal touch electrode and / or the metal touch connection portion onto the substrate. By stacking the black matrix layer with the metal structure in the touch structure layer, this application can reduce the light-blocking area of ​​the second display area and improve the light transmittance of the second display area.

[0360] Figure 3 , Figure 4 as well as Figures 6 to 20 The following explanation is based on the example of a fourth connecting part being a metal touch connecting part and the third and fourth touch electrodes being transparent touch electrodes. In this case, the orthographic projection of the black matrix layer on the substrate covers the orthographic projection of the fourth connecting part. Figure 5 The following explanation is based on the example of the third and fourth touch electrodes being metal touch electrodes and the third and fourth connecting parts being metal touch connecting parts. In this case, the orthogonal projection of the black matrix layer on the substrate covers the orthogonal projections of the third touch electrode, the fourth touch electrode, the third connecting part, and the fourth connecting part on the substrate.

[0361] In one exemplary embodiment, the touch structure layer may be formed on the display structure layer, or it may be attached to the display structure layer as an external attachment. Figure 3 , Figure 5 , Figure 6 , Figure 8 , Figure 10 , Figures 12 to 14 , Figure 16 , Figure 18 and Figure 20 This explanation uses the example of a touch structure layer being formed on top of a display structure layer. For example... Figure 4 , Figure 7 , Figure 9 , Figure 11 , Figure 15 , Figure 17 and Figure 19 This explanation uses the example of a touch structure layer being attached to a display structure layer. When the second touch component is located on either the touch structure layer or the display structure layer, the touch structure layer can be formed on the display structure layer or attached to it as an external attachment. When the second touch component is located on both the touch structure layer and the display structure layer, the touch structure layer is formed on the display structure layer. This disclosure does not impose any limitations on this.

[0362] In one exemplary embodiment, such as Figure 4 , Figure 7 , Figure 9 , Figure 11 , Figure 15 , Figure 17 and Figure 19 As shown, when the second touch component is located in the touch structure layer or the display structure layer, the touch display substrate may further include: an encapsulation layer 50 and an adhesive layer 60 disposed between the display structure layer and the touch structure layer.

[0363] In one exemplary embodiment, the encapsulation layer 50 is located on the side of the adhesive layer 60 closest to the substrate 10. Its orthographic projection onto the substrate covers the pixel islands and the areas between adjacent pixel islands.

[0364] In this disclosure, the touch structure layer is disposed on the display structure layer in an external manner, which makes the distance between the touch structure layer and the cathode larger, thereby reducing the load on the touch display substrate, reducing parasitic capacitance, improving the touch sensitivity of the touch display substrate, and improving the reliability of the touch display substrate.

[0365] In one exemplary embodiment, the thickness of the encapsulation layer 50 can be approximately 5 micrometers to 15 micrometers. For example, the thickness of the encapsulation layer 50 can be approximately 10 micrometers.

[0366] In one exemplary embodiment, the encapsulation layer may include a first inorganic encapsulation layer, a second organic encapsulation layer, and a third inorganic encapsulation layer stacked on the display structure layer. The first and third inorganic encapsulation layers may be made of inorganic materials, and the second organic encapsulation layer may be made of organic materials, which can ensure that external moisture cannot enter the light-emitting structure layer.

[0367] In one exemplary embodiment, the thickness of the adhesive layer 60 may be approximately 25 micrometers to 50 micrometers.

[0368] In one exemplary embodiment, the adhesive layer 60 may include: an optically transparent adhesive.

[0369] In one exemplary embodiment, when the touch structure layer is fabricated on the display structure layer, and the second touch component includes a transparent touch electrode and / or a transparent touch connector, the transparent touch electrode and the transparent touch connector are fabricated using a cryogenic sputtering process. The cryogenic sputtering process, under a certain vacuum environment, reduces plasma energy, ejected atomic energy, and substrate temperature to minimize damage to the film layers below the touch structure layer. This reduces the impact on the lifetime and brightness of the already formed luminescent material, thereby improving the reliability of the touch display substrate.

[0370] The touch display substrate provided in this embodiment can be applied to application scenarios such as front-facing camera photography and mobile games in high-frequency terminal devices.

[0371] Secondly, this disclosure also provides a touch display device, including: the aforementioned touch display substrate.

[0372] This disclosure also provides a touch display device, including a touch display substrate.

[0373] In one exemplary embodiment, the touch display device can be any product or component with display functionality, such as an organic light-emitting diode (OLED) display device, an active-matrix organic light-emitting diode (AMOLED) display device, a mobile phone, a tablet computer, a flexible display device, a television, or a monitor. The accompanying drawings in this disclosure only illustrate the structures relevant to the embodiments of this disclosure; other structures can be referred to in general design.

[0374] The display substrate can be any of the display panels provided in the above embodiments, and the implementation principle and effect are similar, so they will not be described again here.

[0375] In one exemplary embodiment, the touch display device may further include a photosensor.

[0376] In one exemplary embodiment, a photosensor is disposed in a second display area, and its orthographic projection onto the substrate at least partially overlaps with the second display area. Ambient light from the outside can enter the photosensor through the second display area.

[0377] In one exemplary embodiment, the second display area can be rectangular, and the area of ​​the orthographic projection of the photosensitive sensor onto the substrate can be less than or equal to the area of ​​the inscribed circle of the second display area. That is, the size of the area where the photosensitive sensor is located can be less than or equal to the size of the inscribed circle of the second display area. For example, the size of the area where the photosensitive sensor is located is equal to the size of the inscribed circle of the second display area, meaning the shape of the area where the photosensitive sensor is located can be circular, and correspondingly, the area where the photosensitive sensor is located can also be referred to as a light-transmitting hole.

[0378] In one exemplary embodiment, the photosensitive sensor may include at least one of a camera module (e.g., a front-facing camera module), a 3D structured light module (e.g., a 3D structured light sensor), a time-of-flight 3D imaging module (e.g., a time-of-flight sensor), and an infrared sensing module (e.g., an infrared sensing sensor).

[0379] In one exemplary embodiment, the front-facing camera module is typically activated when the user takes a selfie or makes a video call, and the display area of ​​the display device displays the image obtained from the selfie for the user to view. The front-facing camera module includes, for example, a lens, an image sensor, and an image processing chip. The optical image of the scene generated by the lens is projected onto the surface of the image sensor (image sensors include CCD and CMOS), converted into an electrical signal, and then converted into a digital image signal by the image processing chip. This digital signal is then processed by the processor and output as an image of the scene on the display screen.

[0380] The accompanying drawings in this disclosure only relate to the structures involved in the embodiments of this disclosure; other structures can be referred to in general design.

[0381] For clarity, the thickness and dimensions of layers or microstructures are enlarged in the accompanying drawings used to describe embodiments of this disclosure. It will be understood that when an element such as a layer, film, region, or substrate is referred to as being “above” or “below” another element, the element may be located “directly” above or below the other element, or there may be intermediate elements present.

[0382] While the embodiments disclosed herein are as described above, the content is merely for the purpose of facilitating understanding of this disclosure and is not intended to limit this disclosure. Any person skilled in the art to which this disclosure pertains may make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed herein; however, the scope of patent protection of this disclosure shall still be determined by the scope defined in the appended claims.

Claims

1. A touch display substrate, comprising: The display area includes a display area and a non-display area. The display area includes a first display area and a second display area, wherein the first display area surrounds at least one side of the second display area, and the light transmittance of the second display area is greater than that of the first display area. The touch display substrate includes a substrate and a display structure layer and a touch structure layer sequentially disposed on the substrate. The first display area includes a first touch component, and the second display area includes a second touch component. The grid density of the first touch component is greater than that of the second touch component. The display structure layer includes: a plurality of pixel circuits located in the first display area and a plurality of light-emitting elements located in the first display area and the second display area. The display structure layer includes: a plurality of second sub-pixels located in the second display area. The plurality of second sub-pixels form a pixel island. The distance between adjacent pixel islands is greater than the distance between adjacent second sub-pixels located in the same pixel island. The first touch component includes: a plurality of first touch structures and a plurality of second touch structures; the second touch component includes: a plurality of third touch structures and a plurality of fourth touch structures, the plurality of third touch structures being arranged along a second direction and the plurality of fourth touch structures being arranged along a first direction; each third touch structure includes: a plurality of third touch electrodes and a plurality of third connecting portions; each fourth touch structure includes: a plurality of fourth touch electrodes and a plurality of fourth connecting portions; the third connecting portions extend along the first direction, the fourth connecting portions extend along the second direction, and the third touch electrodes and the fourth touch electrodes constitute a second touch electrode unit; adjacent third touch structures are symmetrical with respect to a virtual straight line extending along the first direction, and adjacent fourth touch structures are symmetrical with respect to a virtual straight line extending along the first direction; The third touch electrode, the fourth touch electrode, and one of the third and fourth connecting portions are disposed in the same layer, and are disposed in a different layer from the other connecting portion of the third and fourth connecting portions; The shape of the third touch electrode includes an opening, and the openings of adjacent third touch electrodes arranged along the second direction face opposite directions. The fourth touch electrode is located between two third touch electrodes with openings facing each other along the second direction. The shape of the area enclosed by the third touch electrode and the adjacent fourth touch electrode is adapted to the shape of the pixel island.

2. The touch display substrate according to claim 1, wherein, The light-emitting element includes: a first light-emitting element disposed in the first display area and a second light-emitting element disposed in the second display area; the display structure layer further includes: a plurality of first sub-pixels located in the first display area. The first sub-pixel includes: a first pixel circuit and a first light-emitting element connected to the first pixel circuit; the second sub-pixel includes: a second light-emitting element; and the first pixel circuit is disposed in the first display area.

3. The touch display substrate according to claim 2, wherein, The second sub-pixel further includes a second pixel circuit connected to the second light-emitting element, the second pixel circuit being disposed in the second display area, and its orthographic projection on the substrate overlapping the orthographic projection of the pixel island on the substrate.

4. The touch display substrate according to claim 2, wherein, The subpixel density of the first display area is greater than that of the second display area.

5. The touch display substrate according to claim 2, wherein, The first touch component includes: a plurality of first touch structures extending along a first direction and a plurality of second touch structures extending along a second direction, wherein the plurality of first touch structures are arranged along the second direction and the plurality of second touch structures are arranged along the first direction; the first touch structure includes: a plurality of first touch electrodes and a plurality of first connecting portions, and the second touch structure includes: a plurality of second touch electrodes and a plurality of second connecting portions, wherein the first direction and the second direction intersect, and the first touch electrodes and the second touch electrodes constitute a first touch electrode unit; The first touch electrode, the second touch electrode, and one of the first connecting portions and the second connecting portions are disposed in the same layer, and are disposed in a different layer from the other connecting portion of the first connecting portion and the second connecting portion.

6. The touch display substrate according to claim 5, wherein, The touch structure layer includes: a first touch electrode, a second touch electrode, a first connecting portion, and a second connecting portion; the touch structure layer further includes: a buffer layer, a touch insulating layer, and a protective layer sequentially stacked on the substrate; The first touch electrode, the second touch electrode, and the connection portion disposed in the same layer as the first touch electrode are located between the touch insulating layer and the protective layer, and the connection portion disposed in a different layer from the first touch electrode is located between the buffer layer and the touch insulating layer; The first touch electrode and the second touch electrode are metal touch electrodes. The connecting part disposed in the same layer as the first touch electrode is a metal touch connecting part. The connecting part disposed in a different layer from the first touch electrode can be a metal touch connecting part or a transparent touch connecting part.

7. The touch display substrate according to claim 2, wherein, The first touch component includes: a plurality of first touch structures extending along a first direction and a plurality of second touch structures extending along the first direction, the plurality of first touch structures being arranged along a second direction and the plurality of second touch structures being arranged along a second direction; the first touch structure includes: a plurality of first touch electrodes and a plurality of first connecting portions, the second touch structure includes: a plurality of second touch electrodes and a plurality of second connecting portions, the first touch electrodes and the second touch electrodes are alternately arranged along the second direction, the first direction and the second direction intersect, and the first touch electrodes and the second touch electrodes constitute a first touch electrode unit; The first touch electrode, the second touch electrode, the first connecting portion, and the second connecting portion are disposed in the same layer.

8. The touch display substrate according to claim 7, wherein, The touch structure layer includes: a first touch electrode, a second touch electrode, a first connecting portion, and a second connecting portion; the touch structure layer further includes: a buffer layer and a protective layer sequentially stacked on the substrate; The first touch electrode, the second touch electrode, the first connecting portion, and the second connecting portion are located between the buffer layer and the protective layer; The first touch electrode and the second touch electrode are metal touch electrodes, and the first connecting part and the second connecting part are metal touch connecting parts.

9. The touch display substrate according to claim 8, wherein, When the pixel island is square in shape, the third touch electrode includes: a first electrode portion, a second electrode portion, and a third electrode portion; the first electrode portion and the third electrode portion extend along a second direction, and the second electrode portion extends along a first direction; One end of the first electrode portion is electrically connected to one end of the second electrode portion, and the other end of the first electrode portion is electrically connected to one end of the third electrode portion of an adjacent third touch electrode through a third connecting portion. The other end of the second electrode portion is electrically connected to one end of the third electrode portion, and the other end of the third electrode portion is electrically connected to one end of the first electrode portion of another adjacent third touch electrode through a third connecting portion. The fourth touch electrode includes a fourth electrode portion, a fifth electrode portion, and a sixth electrode portion; the fourth electrode portion and the sixth electrode portion extend along a second direction, and the fifth electrode portion extends along a first direction; The fourth electrode portion and the sixth electrode portion are arranged along the first direction, and the fifth electrode portion is electrically connected to the middle portion of the fourth electrode portion and the middle portion of the sixth electrode portion, respectively; A virtual straight line extending along the second direction passes through the first electrode portion of the third touch electrode and the fourth electrode portion of the fourth touch electrode, and another virtual straight line extending along the second direction passes through the third electrode portion of the third touch electrode and the sixth electrode portion of the fourth touch electrode.

10. The touch display substrate according to claim 9, wherein, When the first touch component includes: a plurality of first touch structures extending along a first direction and a plurality of second touch structures extending along a second direction, the touch structure layer further includes: the third touch electrode, the fourth touch electrode, the third connecting portion and the fourth connecting portion; The third touch electrode, the fourth touch electrode, and the connecting portion disposed in the same layer as the third touch electrode are located between the touch insulating layer and the protective layer, and the connecting portion disposed in a different layer from the third touch electrode is located between the buffer layer and the touch insulating layer; The third touch electrode and the fourth touch electrode are metal touch electrodes, and the connecting part disposed in the same layer as the third touch electrode is a metal touch connecting part; or, the third touch electrode and the fourth touch electrode are transparent touch electrodes, and the connecting part disposed in the same layer as the third touch electrode is a transparent touch connecting part. The connection part that is disposed in a different layer from the third touch electrode is a metal touch connection part or a transparent touch connection part.

11. The touch display substrate according to claim 9, wherein, The display structure layer includes: a circuit structure layer and a light-emitting structure layer sequentially stacked on the substrate; the circuit structure layer includes: a first pixel circuit and a second pixel circuit; the first pixel circuit and the second pixel circuit include: transistors; the circuit structure layer includes: an active layer, a first insulating layer, a gate electrode, a second insulating layer, a source / drain electrode, a first planarization layer, an anode connection line, and a second planarization layer sequentially stacked on the substrate; the light-emitting structure layer includes: a pixel definition layer and a light-emitting element; the light-emitting element includes: an anode, a light-emitting layer, and a cathode; The first planarization layer includes: a first sub-planarization layer and a second sub-planarization layer, wherein the second sub-planarization layer is located on the side of the first sub-planarization layer away from the substrate; The display structure layer further includes: the third touch electrode, the fourth touch electrode, the third connecting portion, and the fourth connecting portion; The third touch electrode, the fourth touch electrode, and the connection portion disposed in the same layer as the third touch electrode are located between the second sub-planar layer and the second planar layer, and the connection portion disposed in a different layer from the third touch electrode is located between the first sub-planar layer and the second sub-planar layer; The third touch electrode and the fourth touch electrode are transparent touch electrodes, and the third connecting part and the fourth connecting part are transparent touch connecting parts; The orthographic projections of the third and fourth touch electrodes on the substrate at least partially overlap with the orthographic projection of the light-emitting layer on the substrate.

12. The touch display substrate according to claim 9, wherein, The display structure layer includes: an anode connecting line; When the first touch component includes: a plurality of first touch structures extending along a first direction and a plurality of second touch structures extending along a second direction, and the cathodes of adjacent light-emitting elements are spaced apart, the touch structure layer further includes: a third touch electrode, a fourth touch electrode and a connection portion disposed in the same layer as the third touch electrode, and the display structure layer further includes: a connection portion disposed in a different layer from the third touch electrode; The third touch electrode, the fourth touch electrode, and the connecting portion disposed in the same layer as the third touch electrode are located between the touch insulation layer and the protective layer, and the connecting portion disposed in a different layer from the third touch electrode is disposed in the same layer as the anode connecting line; The third touch electrode and the fourth touch electrode are metal touch electrodes, and the connecting part disposed in the same layer as the third touch electrode is a metal touch connecting part; or, the third touch electrode and the fourth touch electrode are transparent touch electrodes, and the connecting part disposed in the same layer as the third touch electrode is a transparent touch connecting part. The connection portion that is disposed in a different layer from the third touch electrode is a transparent touch connection portion; The connection portion, which is disposed on a different layer from the third touch electrode, is electrically connected to the connected touch electrode through vias formed in the second planarization layer, pixel definition layer, buffer layer, and touch insulating layer.

13. The touch display substrate according to claim 9, wherein, The display structure layer includes: an anode connecting line; When the first touch component includes: a plurality of first touch structures extending along a first direction and a plurality of second touch structures extending along a first direction, and the cathodes of adjacent light-emitting elements are spaced apart, the touch structure layer further includes: a third touch electrode, a fourth touch electrode and a connection portion disposed in the same layer as the third touch electrode, and the display structure layer further includes: a connection portion disposed in a different layer from the third touch electrode; The third touch electrode, the fourth touch electrode, and the connecting portion disposed in the same layer as the third touch electrode are located between the buffer layer and the protective layer, and the connecting portion disposed in a different layer from the third touch electrode is disposed in the same layer as the anode connecting line; The third touch electrode and the fourth touch electrode are metal touch electrodes, and the connecting part disposed in the same layer as the third touch electrode is a metal touch connecting part; or, the third touch electrode and the fourth touch electrode are transparent touch electrodes, and the connecting part disposed in the same layer as the third touch electrode is a transparent touch connecting part. The connection portion that is disposed in a different layer from the third touch electrode is a transparent touch connection portion; The connection portion, which is disposed in a different layer from the third touch electrode, is electrically connected to the connected touch electrode through vias formed in the second planarization layer, pixel definition layer, and buffer layer.

14. The touch display substrate according to claim 9, wherein, The display structure layer includes: an anode connection line; the display structure layer includes: a circuit structure layer and a light-emitting structure layer sequentially stacked on the substrate, the light-emitting structure layer includes: a pixel definition layer and a light-emitting element, the light-emitting element includes: an anode, a light-emitting layer and a cathode; When the first touch component includes: a plurality of first touch structures extending along a first direction and a plurality of second touch structures extending along a second direction, and the cathodes of adjacent light-emitting elements are spaced apart, the touch structure layer further includes: a connection portion disposed on a different layer from the third touch electrode, and the display structure layer further includes: a third touch electrode, a fourth touch electrode and a connection portion disposed on the same layer as the third touch electrode; The connection portion, which is disposed in a different layer from the third touch electrode, is located between the buffer layer and the touch insulation layer. The third touch electrode, the fourth touch electrode, and the connection portion disposed in the same layer as the third touch electrode are disposed in the same layer as the anode connection line. The third touch electrode and the fourth touch electrode are transparent touch electrodes. The connection part disposed in the same layer as the third touch electrode is a transparent touch connection part. The connection part disposed in a different layer from the third touch electrode is a transparent touch connection part or a metal touch connection part. The connection portion, which is disposed in a different layer from the third touch electrode, is electrically connected to the connected touch electrode through vias formed in the second planarization layer, pixel definition layer, and buffer layer; The orthographic projections of the third and fourth touch electrodes on the substrate at least partially overlap with the orthographic projection of the light-emitting layer on the substrate.

15. The touch display substrate according to claim 1, wherein, The density of the first touch electrode unit is greater than the density of the second touch electrode unit.

16. The touch display substrate according to claim 1, further comprising: The first touch trace, the second touch trace, the third touch trace, and the fourth touch trace are located in the display structure layer; The first touch trace is electrically connected to the first touch structure, the second touch trace is electrically connected to the second touch structure, the third touch trace is electrically connected to the third touch structure, and the fourth touch trace is electrically connected to the fourth touch structure. When the third touch electrode and the fourth touch electrode are transparent electrodes, the third touch trace and the fourth touch trace include: a trace portion and a compensation portion, wherein the width of the compensation portion is greater than the width of the trace portion; The width of the trace portion is greater than or equal to the width of the first touch trace and the second touch trace.

17. The touch display substrate according to claim 6, further comprising: A light-filtering structure layer located on the side of the touch structure layer away from the display structure layer, the light-filtering structure layer comprising: a light-filtering layer and a black matrix layer; the display structure layer comprising: a circuit structure layer and a light-emitting structure layer sequentially stacked on the substrate, the light-emitting structure layer comprising: a pixel definition layer and a light-emitting element, the light-emitting element comprising: an anode, a light-emitting layer and a cathode; The orthographic projection of the filter layer on the substrate at least partially overlaps with the orthographic projection of the light-emitting layer of the light-emitting element on the substrate, and the orthographic projection of the black matrix layer on the substrate at least partially overlaps with the orthographic projection of the pixel definition layer on the substrate; The orthographic projection of the black matrix layer on the substrate at least partially overlaps with the orthographic projection of the metal touch electrode and / or the metal touch connector on the substrate.

18. The touch display substrate according to claim 2, further comprising: An encapsulation layer and an adhesive layer are disposed between the display structure layer and the touch structure layer; the encapsulation layer includes: a first inorganic encapsulation layer, a second organic encapsulation layer and a third inorganic encapsulation layer sequentially stacked on the display structure layer; The encapsulation layer is located on the side of the adhesive layer closer to the substrate, and its orthographic projection on the substrate covers the pixel islands and the area between adjacent pixel islands; The adhesive layer includes: optically transparent adhesive.

19. The touch display substrate according to claim 10, wherein, When the second touch component includes a transparent touch electrode and / or a transparent touch connector, the transparent touch electrode and the transparent touch connector are manufactured using a low-temperature sputtering process.

20. The touch display substrate according to claim 2, wherein, The display structure layer further includes: an anode connection line; the pixel circuit includes a second pixel circuit disposed in the first display area; the second pixel circuit is connected to the second light-emitting element through the anode connection line; and the anode connection line includes a transparent conductor.

21. The touch display substrate according to claim 20, wherein, The display structure layer includes: a circuit structure layer and a light-emitting structure layer sequentially stacked on the substrate; the circuit structure layer includes: a first pixel circuit and a second pixel circuit; the first pixel circuit and the second pixel circuit include: transistors; The circuit structure layer includes: an active layer, a first insulating layer, a gate electrode, a second insulating layer, a source / drain electrode, a first planarization layer, an anode connection line, and a second planarization layer, which are sequentially stacked on the substrate. The light-emitting element includes an anode, a light-emitting layer, and a cathode, and the light-emitting structure layer includes a first light-emitting element and a second light-emitting element.

22. The touch display substrate according to claim 21, wherein, The first planarization layer includes: a first sub-planarization layer and a second sub-planarization layer, wherein the second sub-planarization layer is located on the side of the first sub-planarization layer away from the substrate; The anode connection line includes: a first anode connection line and a second anode connection line disposed in different layers, wherein the first anode connection line is located between the first sub-planarization layer and the second sub-planarization layer, and the second anode connection line is located between the second sub-planarization layer and the second planarization layer.

23. The touch display substrate according to claim 5, wherein, The cathode of the second light-emitting element has a planar structure; Alternatively, the display structure layer may further include: a cathode connecting line, wherein the cathodes of the plurality of second light-emitting elements are block-shaped structures and are spaced apart, and the cathodes of adjacent second light-emitting elements are electrically connected through the cathode connecting line, wherein the cathode connecting line is disposed in the same layer as the cathode and is a transparent conductor.

24. The touch display substrate according to claim 2 or 3, wherein, The first display area includes a normal display area and a transition display area. The normal display area surrounds at least one side of the transition display area, and the transition display area surrounds at least one side of the second display area. The light-emitting element in the second display area is electrically connected to the pixel circuit in the transition display area. The subpixel density of the normal display area is greater than that of the transition display area, and the subpixel density of the transition display area is greater than that of the second display area.

25. The touch display substrate according to claim 2, wherein, The area of ​​the first sub-pixel is larger than the area of ​​the second sub-pixel.

26. A touch display substrate, comprising: The display area includes a display area and a non-display area. The display area includes a first display area and a second display area, wherein the first display area surrounds at least one side of the second display area, and the light transmittance of the second display area is greater than that of the first display area. The touch display substrate includes a substrate and a display structure layer and a touch structure layer sequentially disposed on the substrate. The first display area includes a first touch component, and the second display area includes a second touch component. The grid density of the first touch component is greater than that of the second touch component. The display structure layer includes: a plurality of pixel circuits located in the first display area and a plurality of light-emitting elements located in the first display area and the second display area; the display structure layer includes: a plurality of second sub-pixels located in the second display area. Multiple second sub-pixels form a pixel island, and the distance between adjacent pixel islands is greater than the distance between adjacent second sub-pixels located in the same pixel island; The second touch component includes: a plurality of third touch structures extending along a first direction and a plurality of fourth touch structures extending along the first direction; the plurality of third touch structures are arranged along a second direction, and the plurality of fourth touch structures are arranged along the second direction, with the third touch structures and the fourth touch structures alternately arranged along the second direction; each third touch structure includes: a plurality of third touch electrodes and a plurality of third connecting portions; each fourth touch structure includes: a plurality of fourth touch electrodes and a plurality of fourth connecting portions; the third touch electrodes and the fourth touch electrodes constitute a second touch electrode unit; the third touch structures and the fourth touch structures are symmetrical with respect to a virtual straight line extending in the first direction. The third touch electrode, the fourth touch electrode, the third connecting portion, and the fourth connecting portion are disposed in the same layer; The shape of the area enclosed by the third touch structure and the adjacent fourth touch structure is adapted to the shape of the pixel island.

27. The touch display substrate according to claim 26, wherein, The light-emitting element includes: a first light-emitting element disposed in the first display area and a second light-emitting element disposed in the second display area; the display structure layer further includes: a plurality of first sub-pixels located in the first display area. The first sub-pixel includes: a first pixel circuit and a first light-emitting element connected to the first pixel circuit; the second sub-pixel includes: a second light-emitting element; and the first pixel circuit is disposed in the first display area.

28. The touch display substrate according to claim 27, wherein, The second sub-pixel further includes a second pixel circuit connected to the second light-emitting element, the second pixel circuit being disposed in the second display area, and its orthographic projection on the substrate overlapping the orthographic projection of the pixel island on the substrate.

29. The touch display substrate according to claim 26, wherein, The subpixel density of the first display area is greater than that of the second display area.

30. The touch display substrate according to claim 26, wherein, The first touch component includes: a plurality of first touch structures extending along a first direction and a plurality of second touch structures extending along a second direction, wherein the plurality of first touch structures are arranged along the second direction and the plurality of second touch structures are arranged along the first direction; the first touch structure includes: a plurality of first touch electrodes and a plurality of first connecting portions, and the second touch structure includes: a plurality of second touch electrodes and a plurality of second connecting portions, wherein the first direction and the second direction intersect, and the first touch electrodes and the second touch electrodes constitute a first touch electrode unit; The first touch electrode, the second touch electrode, and one of the first connecting portions and the second connecting portions are disposed in the same layer, and are disposed in a different layer from the other connecting portion of the first connecting portion and the second connecting portion.

31. The touch display substrate according to claim 30, wherein, The touch structure layer includes: a first touch electrode, a second touch electrode, a first connecting portion, and a second connecting portion; the touch structure layer further includes: a buffer layer, a touch insulating layer, and a protective layer sequentially stacked on the substrate; The first touch electrode, the second touch electrode, and the connection portion disposed in the same layer as the first touch electrode are located between the touch insulating layer and the protective layer, and the connection portion disposed in a different layer from the first touch electrode is located between the buffer layer and the touch insulating layer; The first touch electrode and the second touch electrode are metal touch electrodes. The connecting part disposed in the same layer as the first touch electrode is a metal touch connecting part. The connecting part disposed in a different layer from the first touch electrode can be a metal touch connecting part or a transparent touch connecting part.

32. The touch display substrate according to claim 26, wherein, The first touch component includes: a plurality of first touch structures extending along a first direction and a plurality of second touch structures extending along the first direction, the plurality of first touch structures being arranged along a second direction and the plurality of second touch structures being arranged along a second direction; the first touch structure includes: a plurality of first touch electrodes and a plurality of first connecting portions, the second touch structure includes: a plurality of second touch electrodes and a plurality of second connecting portions, the first touch electrodes and the second touch electrodes are alternately arranged along the second direction, the first direction and the second direction intersect, and the first touch electrodes and the second touch electrodes constitute a first touch electrode unit; The first touch electrode, the second touch electrode, the first connecting portion, and the second connecting portion are disposed in the same layer.

33. The touch display substrate according to claim 32, wherein, The touch structure layer includes: a first touch electrode, a second touch electrode, a first connecting portion, and a second connecting portion; the touch structure layer further includes: a buffer layer and a protective layer sequentially stacked on the substrate; The first touch electrode, the second touch electrode, the first connecting portion, and the second connecting portion are located between the buffer layer and the protective layer; The first touch electrode and the second touch electrode are metal touch electrodes, and the first connecting part and the second connecting part are metal touch connecting parts.

34. The touch display substrate according to claim 33, wherein, When the second touch component includes: a plurality of first touch structures extending along a first direction and a plurality of second touch structures extending along a second direction, the touch structure layer further includes: the third touch electrode, the fourth touch electrode, the third connecting portion and the fourth connecting portion; The third touch electrode, the fourth touch electrode, the third connecting portion, and the fourth connecting portion are located between the buffer layer and the protective layer; The third touch electrode and the fourth touch electrode are metal touch electrodes, and the third connecting part and the fourth connecting part are metal touch connecting parts; or, the third touch electrode and the fourth touch electrode are transparent touch electrodes, and the third connecting part and the fourth connecting part are transparent touch connecting parts.

35. The touch display substrate according to claim 33, wherein, When the second touch component includes a plurality of first touch structures extending along a first direction and a plurality of second touch structures extending along a first direction, the third touch electrode, the fourth touch electrode, the third connection portion and the fourth connection portion are located between the buffer layer and the protective layer; The third touch electrode and the fourth touch electrode are metal touch electrodes, and the third connecting part and the fourth connecting part are metal touch connecting parts; or, the third touch electrode and the fourth touch electrode are transparent touch electrodes, and the third connecting part and the fourth connecting part are transparent touch connecting parts.

36. The touch display substrate according to claim 26, wherein, The display structure layer includes: an anode connection line; the display structure layer includes: a circuit structure layer and a light-emitting structure layer sequentially stacked on the substrate, the light-emitting structure layer includes: a pixel definition layer and a light-emitting element, the light-emitting element includes: an anode, a light-emitting layer and a cathode; The display structure layer further includes: the third touch electrode, the fourth touch electrode, the third connecting portion, and the fourth connecting portion; The third touch electrode, the fourth touch electrode, the third connecting portion, and the fourth connecting portion are disposed in the same layer as the anode connecting line; The third touch electrode and the fourth touch electrode are transparent touch electrodes, and the third connecting part and the fourth connecting part are transparent touch connecting parts; The orthographic projections of the third and fourth touch electrodes on the substrate at least partially overlap with the orthographic projection of the light-emitting layer on the substrate.

37. The touch display substrate according to claim 36, wherein, When the pixel island is circular, the third touch electrode and the fourth touch electrode are strip electrodes, and a virtual straight line extending along the second direction passes through the third touch electrode and the fourth touch electrode, and the virtual straight line extending along the second direction passes through the third connecting part and the fourth connecting part. The third connecting portion and the fourth connecting portion include: a first straight connecting portion, a second straight connecting portion, a first non-straight connecting portion and a second non-straight connecting portion, wherein the first straight connecting portion and the second straight connecting portion extend along a second direction and are arranged along a first direction; One end of the first straight connection portion is connected to one end of the first non-straight connection portion, and the other end of the first straight connection portion is connected to one end of the second non-straight connection portion. One end of the second straight connection portion is connected to the other end of the first non-straight connection portion, and one end of the second straight connection portion is connected to the other end of the second non-straight connection portion. The first non-linear connection portion and the second non-linear connection portion are symmetrical with respect to the virtual straight line extending along the first direction; The shape of the first non-linear connection portion includes: an arc shape, and a broken line shape composed of multiple straight line segments.

38. The touch display substrate according to claim 36, wherein, When the pixel island is circular, the third touch electrode and the fourth touch electrode are arc-shaped, and the third connecting portion and the fourth connecting portion are straight-line shaped and extend along the first direction.

39. The touch display substrate according to claim 38, wherein, The display structure layer further includes an anode connecting line, which includes: an arc connecting portion and a straight connecting portion arranged at intervals; the bending direction of the arc connecting portion is consistent with the bending direction of the third touch electrode, and the arc connecting portion is arranged parallel to the third touch electrode, and the straight connecting portion is arranged parallel to the third connecting portion and the fourth connecting portion.

40. A touch display device, comprising: The touch display substrate and photosensor as described in any one of claims 1 to 39 The orthographic projection of the photosensitive sensor onto the substrate at least partially overlaps with the second display area.

Images