Touch structure and display panel

Abstract

A touch structure and a display panel, the touch structure comprising a substrate and a plurality of touch units arranged on the substrate, at least one of the plurality of touch units comprising a first conductive layer, a spacer insulating layer and a second conductive layer which are sequentially stacked on the substrate; the first conductive layer comprises a first pattern formed by a plurality of first traces spaced from each other, the second conductive layer comprises a second pattern formed by a plurality of second traces spaced from each other, at least one of the plurality of first traces comprises a first overlap portion overlapping at least one of the plurality of second traces, at least one of the plurality of second traces comprises a second overlap portion overlapping the first overlap portion, and a first segment where the first overlap portion is located and a second segment where the second overlap portion is located have different extension directions, the first segment being a line segment of the first trace extending with the first overlap portion as an end point, and the second segment being a line segment of the second trace extending with the second overlap portion as an end point. The touch structure has higher touch precision and touch sensitivity.

Description

[0001] This application is a divisional application of the Chinese invention patent application (application number: 202180001213.4, application date: May 19, 2021, invention name: touch structure and display panel). Technical Field

[0002] Embodiments of the present disclosure relate to a touch structure and a display panel. Background Art

[0003] Touch-enabled user interfaces are widely used in various electronic devices, such as mobile phones and tablet computers. The touch structure used to implement this functionality includes a touch electrode structure. The configuration of the touch electrode structure affects the sensitivity and accuracy of the touch function and is therefore a key factor influencing the user experience. Summary of the Invention

[0004] At least one embodiment of the present disclosure provides a touch structure, which includes a substrate and a plurality of touch units arranged on the substrate, wherein at least one of the plurality of touch units includes a first conductive layer, a spacer insulating layer, and a second conductive layer sequentially stacked on the substrate; the first conductive layer includes a first pattern formed by a plurality of first traces spaced apart from each other, and the second conductive layer includes a second pattern formed by a plurality of second traces spaced apart from each other, at least one of the plurality of first traces includes a first overlapping portion overlapping with at least one of the plurality of second traces, and at least one of the plurality of second traces includes a second overlapping portion overlapping with the first overlapping portion, and a first segment where the first overlapping portion is located and a second segment where the second overlapping portion is located have different extension directions, wherein the first segment is a segment of the first trace extending with the first overlapping portion as an endpoint, and the second segment is a segment of the second trace extending with the second overlapping portion as an endpoint.

[0005] For example, in the touch structure provided by at least one embodiment of the present disclosure, the first segment and the second segment include a straight line segment, and the extension direction of the first segment and the second segment is the extension direction of the straight line segment, and / or the first segment and the second segment include an arc segment, and the extension direction of the first segment and the second segment is the extension direction of the tangent of the arc segment with the first overlapping portion and the second overlapping portion as endpoints.

[0006] For example, in the touch structure provided by at least one embodiment of the present disclosure, the size of a first overlapping portion in any direction is greater than or equal to the line width of the first routing line in the direction perpendicular to its extension direction, and less than or equal to twice the line width of the first routing line in the direction perpendicular to its extension direction; the size of a second overlapping portion in any direction is greater than or equal to the line width of the second routing line in the direction perpendicular to its extension direction, and less than or equal to twice the line width of the second routing line in the direction perpendicular to its extension direction.

[0007] For example, in the touch structure provided by at least one embodiment of the present disclosure, the first wiring generally extends along a first direction, and the second wiring generally extends along a second direction.

[0008] For example, in the touch structure provided by at least one embodiment of the present disclosure, the angle between the first direction and the second direction is 30°-90°.

[0009] For example, in the touch structure provided by at least one embodiment of the present disclosure, at at least one location where the first overlapping portion overlaps the second overlapping portion, the first overlapping portion and the second overlapping portion are electrically connected through a via in the spacing insulating layer.

[0010] For example, in the touch structure provided by at least one embodiment of the present disclosure, in a touch unit, the multiple first lines include at least one first connecting line, and the first overlapping portion of the first connecting line is electrically connected to the second overlapping portion of at least part of the multiple second lines overlapping with the first overlapping portion through a via in the spacing insulating layer.

[0011] For example, in the touch structure provided by at least one embodiment of the present disclosure, the second overlapping portions of any two adjacent second traces are electrically connected through the at least one first connecting trace.

[0012] For example, in the touch structure provided by at least one embodiment of the present disclosure, the at least one first connecting line includes multiple first connecting lines, and the multiple first connecting lines are arranged at intervals; the multiple first lines also include multiple second connecting lines, and the multiple second connecting lines are arranged at intervals with the first connecting lines; the multiple second connecting lines are insulated from the multiple first connecting lines and the multiple second lines.

[0013] For example, the touch structure provided by at least one embodiment of the present disclosure further includes a touch driving circuit, wherein the first connecting wire is electrically connected to the touch driving circuit.

[0014] For example, in the touch structure provided by at least one embodiment of the present disclosure, the first conductive layer further has a third segment connected to the plurality of first connection traces and extending in a different direction.

[0015] For example, in the touch structure provided in at least one embodiment of the present disclosure, the first end of the third segment is connected to the multiple first connecting wires, and the second end of the third segment is spaced apart from the adjacent multiple second connecting wires, and the minimum spacing distance is 1μm-6μm.

[0016] For example, in the touch structure provided by at least one embodiment of the present disclosure, the first conductive layer further has a fourth segment that is spaced apart from the plurality of first traces and extends in a different direction.

[0017] For example, in the touch structure provided in at least one embodiment of the present disclosure, both ends of the fourth segment are spaced apart from the plurality of first traces, and the minimum distance between the two ends is 1 μm-6 μm.

[0018] For example, in the touch structure provided by at least one embodiment of the present disclosure, the line width of the plurality of first wirings is 2 μm-4 μm.

[0019] For example, in the touch structure provided by at least one embodiment of the present disclosure, the line width of the plurality of second wirings is 2 μm-4 μm.

[0020] For example, in the touch structure provided by at least one embodiment of the present disclosure, the plurality of touch units are arranged in an array.

[0021] At least one embodiment of the present disclosure also provides a display panel, including a display substrate and the touch structure as described above, the display substrate including a base substrate and a driving circuit layer, a light-emitting device layer and a packaging layer sequentially arranged on the base substrate; the touch structure is arranged on a side of the packaging layer away from the base substrate, wherein the first conductive layer is closer to the packaging layer than the second conductive layer.

[0022] For example, the display panel provided by at least one embodiment of the present disclosure also includes: a black matrix layer, which is arranged on the side of the touch structure away from the substrate or close to the substrate, including a plurality of first light-transmitting openings and a plurality of second light-transmitting openings, wherein the light-emitting device layer includes a plurality of light-emitting devices, and the plurality of first light-transmitting openings are configured to respectively emit light through the plurality of light-emitting devices, and the driving circuit layer includes a plurality of light-transmitting parts, and each of at least some of the second light-transmitting openings is arranged corresponding to at least one of the plurality of light-transmitting parts, and in the correspondingly arranged second light-transmitting openings and light-transmitting parts, the orthographic projection of the second light-transmitting opening on the substrate at least partially overlaps with the orthographic projection of the light-transmitting part on the substrate.

[0023] For example, in the display panel provided by at least one embodiment of the present disclosure, in a direction parallel to the base substrate, the distance between the plurality of second light-transmitting openings and the plurality of first wirings and / or the plurality of second wirings is greater than 1 μm.

[0024] For example, in the display panel provided by at least one of the embodiments of the present disclosure, in a direction parallel to the substrate, a distance between the plurality of first light-transmissive openings and the plurality of first tracks and / or the plurality of second tracks is greater than 1 μm.

[0025] For example, in the display panel provided by at least one of the embodiments of the present disclosure, in a direction perpendicular to the substrate, the plurality of first tracks and the plurality of second tracks do not overlap with the plurality of first light-transmissive openings and the plurality of second light-transmissive openings.

[0026] For example, in the display panel provided by at least one of the embodiments of the present disclosure, two adjacent second light-transmissive openings of the plurality of second light-transmissive openings are provided with a first track or a second track.

[0027] For example, in the display panel provided by at least one of the embodiments of the present disclosure, the display substrate has a plurality of pixel units arranged in an array, each of the plurality of pixel units includes a plurality of sub-pixels, each of the plurality of sub-pixels includes a pixel driving circuit provided in the driving circuit layer and a light-emitting device provided in the light-emitting device layer, the light-emitting device has a light-emitting region; and at least part of the plurality of light-transmissive portions are arranged between the light-emitting regions of the light-emitting devices of adjacent sub-pixels.

[0028] For example, in the display panel provided by at least one of the embodiments of the present disclosure, in a direction perpendicular to the substrate, the plurality of first tracks and the plurality of second tracks do not overlap with the light-emitting regions of the light-emitting devices of the plurality of sub-pixels.

[0029] For example, in the display panel provided by at least one of the embodiments of the present disclosure, in a direction parallel to the substrate, at least one second light-transmissive opening of the plurality of second light-transmissive openings is located between a light-emitting region of a light-emitting device of a sub-pixel and a first track or a second track, a distance between the light-emitting region of the light-emitting device of the sub-pixel and the first track or the second track adjacent to the at least one second light-transmissive opening is greater than a distance between the light-emitting region of the light-emitting device of the sub-pixel and other first tracks or second tracks.

[0030] For example, in the display panel provided by at least one of the embodiments of the present disclosure, the plurality of pixel units include at least one first pixel unit, the plurality of sub-pixels included in the first pixel unit one-to-one correspond to and overlap with the plurality of second light-transmissive openings in a direction perpendicular to the display substrate.

[0031] For example, the display panel provided by at least one of the embodiments of the present disclosure further includes a plurality of color filters respectively arranged in the plurality of first light-transmissive openings.

[0032] For example, the display panel provided by at least one embodiment of the present disclosure also includes a textured touch surface and an image sensor array, wherein the image sensor array is arranged on a side of the driving circuit layer away from the light-emitting device layer, and includes a plurality of image sensors, and the plurality of image sensors are configured to receive light emitted from a plurality of light-emitting devices in the light-emitting device layer and reflected by the texture on the textured touch surface and reaching the plurality of image sensors through the second light-transmitting opening and the light-transmitting portion for texture acquisition. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present disclosure, rather than limiting the present disclosure.

[0034] Figure 1 A schematic plan view of a self-capacitive touch structure;

[0035] Figure 2 A schematic plan view of a first touch layer of a self-capacitive touch structure;

[0036] Figure 3 is a planar schematic diagram of a second touch layer of a self-capacitive touch structure;

[0037] Figure 4 A schematic plan view of a stack of a first touch layer and a second touch layer in a self-capacitive touch structure;

[0038] Figure 5 A schematic plan view of a touch structure provided by at least one embodiment of the present disclosure;

[0039] Figure 6 A schematic plan view of a first conductive layer of a touch structure provided by at least one embodiment of the present disclosure;

[0040] Figure 7 A schematic plan view of a second conductive layer of a touch structure provided by at least one embodiment of the present disclosure;

[0041] Figure 8 A schematic plan view of a stack of a first conductive layer and a second conductive layer of a touch structure provided by at least one embodiment of the present disclosure;

[0042] Figure 9 for Figure 8 A schematic cross-sectional view of the touch structure along line AA;

[0043] Figure 10 A partial plan view of a display panel provided in at least one embodiment of the present disclosure; and

[0044] Figure 11 A schematic cross-sectional view of a sub-pixel of a display panel provided in at least one embodiment of the present disclosure. DETAILED DESCRIPTION

[0045] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0046] Unless otherwise defined, the technical or scientific terms used in this disclosure should have the usual meanings understood by persons of ordinary skill in the field to which this disclosure belongs. The words "first", "second" and similar terms used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0047] Organic light-emitting diode (OLED) display panels offer broad development prospects due to their self-luminescence, high contrast, low energy consumption, wide viewing angle, fast response speed, compatibility with flexible panels, wide operating temperature range, and simple manufacturing. To meet diverse user needs, integrating multiple functions, such as touch and fingerprint recognition, into display panels is crucial. For example, one approach involves forming an on-cell touch structure within an OLED display panel. This approach implements the touch functionality of the display panel by integrating the touch structure onto the OLED display panel's encapsulation film.

[0048] Touchscreen structures can be categorized as resistive, capacitive, surface acoustic wave, and infrared based on their operating principles and transmission media. Capacitive touchscreen structures are widely adopted due to their high accuracy and strong anti-interference capabilities. Capacitive touchscreen structures are primarily divided into mutual capacitance and self capacitance. A mutual capacitance touchscreen structure consists of a first touchscreen electrode layer and a second touchscreen electrode layer overlapping to form a mutual capacitance, using changes in mutual capacitance to detect touch position. A self capacitance touchscreen structure uses a self capacitance formed by the touchscreen electrodes and the human body or the ground to detect touch position. Self capacitance touchscreen structures feature low power consumption and a simple structure, making them widely used in various display panels.

[0049] For example, Figure 1 A schematic plan view of a self-capacitive touch structure is shown in FIG. Figure 1 As shown, the self-capacitive touch structure has a plurality of touch units T1, T2, etc. arranged at intervals. The plurality of touch units T1, T2 are connected to the touch chip IC through a plurality of touch traces L1, L2. Each touch unit has a stacked first touch layer, a second touch layer, and a touch insulating layer between the first touch layer and the second touch layer. For example, Figure 2 shows a planar schematic diagram of the first touch layer, Figure 3 shows a plan view of the second touch layer, Figure 4 A schematic plan view of a stack of a first touch layer and a second touch layer is shown.

[0050] like Figure 3 As shown, the second touch layer has a metal network structure that can be used as a touch sensing structure. When a finger touches the touch structure, the finger forms a capacitor with a metal wire in the metal network structure, thereby changing the capacitance formed between the original metal network structure and the ground. As a result, the touch chip IC can detect the location where the capacitance changes and further determine the location of the finger touch. For example, Figure 2 As shown, the first touch layer can be used as a wiring layer, including multiple touch wirings, and can connect multiple touch units to the touch IC respectively.

[0051] like Figure 4 As shown in FIG, after the first touch layer and the second touch layer are stacked, the traces in the first touch layer and the second touch layer completely overlap, so a large parasitic capacitance will be generated at the overlapping position OP, resulting in poor touch effect. Figure 2 As shown, the touch lines in the first touch layer are arranged in the vertical direction as a whole. Under strong light, users can easily see the lines in the first touch layer from the surface of the touch structure. The pattern of the first touch layer is highly visualized, and the user experience is poor.

[0052] At least one embodiment of the present disclosure provides a touch structure, which includes a substrate and a plurality of touch units arranged on the substrate, wherein at least one of the plurality of touch units includes a first conductive layer, a spacer insulating layer, and a second conductive layer stacked in sequence on the substrate; the first conductive layer includes a first pattern formed by a plurality of first traces spaced apart from each other, and the second conductive layer includes a second pattern formed by a plurality of second traces spaced apart from each other, at least one of the plurality of first traces includes a first overlapping portion overlapping with at least one of the plurality of second traces, and at least one of the plurality of second traces includes a second overlapping portion overlapping with the first overlapping portion, and a first segment where the first overlapping portion is located and a second segment where the second overlapping portion is located have different extension directions, wherein the first segment is a segment of the first trace extending with the first overlapping portion as an endpoint, and the second segment is a segment of the second trace extending with the second overlapping portion as an endpoint.

[0053] In the above-mentioned touch structure provided in the embodiment of the present disclosure, the first section of the multiple first lines and the second section of the multiple second lines have different line extension directions. Therefore, when overlapping, the first overlapping parts of the multiple first lines and the second overlapping parts of the multiple second lines present a "point-like" overlap with a smaller overlapping area. Therefore, the multiple first lines and the multiple second lines will not generate parasitic capacitance or the generated parasitic capacitance is very small and negligible, thereby improving the touch accuracy and touch sensitivity of the touch structure, thereby improving the touch effect and enhancing the user experience.

[0054] The touch control structure and display panel of some embodiments of the present disclosure are described below through several specific embodiments.

[0055] At least one embodiment of the present disclosure provides a touch structure. Figure 5 shows a planar schematic diagram of the touch structure, Figure 6 shows a planar schematic diagram of the first conductive layer of the touch unit in the touch structure, Figure 7 shows a planar schematic diagram of the second conductive layer in the touch unit, Figure 8 shows a schematic diagram of the stacking of the first conductive layer and the second conductive layer in the touch unit, Figure 9 Shown Figure 8 Schematic diagram of the cross section of the touch unit along line AA.

[0056] like Figure 5-Figure 9As shown, the touch structure includes a substrate B and multiple touch units T11, T12, and T13 disposed on the substrate B. The multiple touch units T11, T12, and T13 are arranged in an array. For example, each touch unit can be block-shaped, such as rectangular or square in plan view. These touch units T11, T12, and T13 are spaced apart and electrically connected to a touch drive circuit D via multiple touch traces L11, L12, and L13, respectively, to transmit electrical signals to or receive electrical signals from the touch drive circuit D.

[0057] For example, at least one (for example, each) of the plurality of touch control units includes a first conductive layer M1, an insulating spacer layer I, and a second conductive layer M2 sequentially stacked on a substrate B. The first conductive layer M1 includes a first pattern formed by a plurality of first traces 11 spaced apart from each other, and the second conductive layer M2 includes a second pattern formed by a plurality of second traces 12 spaced apart from each other. Figure 6-Figure 8 As shown, at least one (e.g., each) of the plurality of first traces 11 includes a first overlapping portion 111 overlapping at least one of the plurality of second traces 12, and at least one (e.g., each) of the plurality of second traces 12 includes a second overlapping portion 112 overlapping the first overlapping portion 111, and the first segment 112 ( Figure 6 The portion circled by the dotted line in the middle) and the second section 122 ( Figure 7 The first segment 112 is the portion of the first routing line 11 including the first overlapping portion 111, that is, the first segment 112 is the line segment of the first routing line 11 extending with the first overlapping portion 111 as the endpoint, and the second segment 122 is the portion of the second routing line 12 including the second overlapping portion 121, that is, the second segment 112 is the line segment of the second routing line 12 extending with the second overlapping portion 121 as the endpoint.

[0058] Therefore, since the first section 112 of the multiple first traces 11 and the second section 122 of the multiple second traces 12 have different line extension directions, when overlapping, the first overlapping portion 111 of the multiple first traces 11 and the second overlapping portion 121 of the multiple second traces 12 present a "point-shaped" overlap with a smaller overlapping area. Therefore, the multiple first traces 11 and the multiple second traces 12 will not generate parasitic capacitance or the generated parasitic capacitance is very small and can be ignored, thereby improving the touch accuracy and touch sensitivity of the touch structure, thereby improving the touch effect and enhancing the user experience.

[0059] For example, the first segment 112 and the second segment 122 include straight segments, in which case the extending direction of the first segment 112 and the second segment 122 is the extending direction of the straight segment; or the first segment 112 and the second segment 122 include arc segments, in which case the extending direction of the first segment 112 and the second segment 122 is the extending direction of the tangent of the arc segment with the first overlapping portion 111 and the second overlapping portion 121 as endpoints. Figure 6 In the example, the extension direction of the first section 112 is Figure 6 The direction of extension of the dotted line in Figure 7 In the embodiment, the extension direction of the second section 122 is Figure 7 The direction of extension of the dotted line. Figure 8 and Figure 9 As shown, at at least one location O where the first overlapping portion 111 overlaps the second overlapping portion 121 , the first overlapping portion 111 and the second overlapping portion 121 are electrically connected through a via hole I1 in the spacer insulating layer I.

[0060] For example, the dimension of a first overlapping portion 111 in any direction is greater than or equal to the line width of the first trace 11 in the direction perpendicular to its extension, and less than or equal to twice the line width of the first trace 11 in the direction perpendicular to its extension. The dimension of a second overlapping portion 121 in any direction is greater than or equal to the line width of the second trace 12 in the direction perpendicular to its extension, and less than or equal to twice the line width of the second trace 12 in the direction perpendicular to its extension. This ensures the reliability of the electrical connection between the first overlapping portion 111 and the second overlapping portion 121.

[0061] For example, Figure 6 As shown, the first trace 11 is generally bent and extended along the first direction (vertical direction in the figure), as shown in FIG. Figure 7 As shown, the second trace 12 as a whole curves and extends generally along the second direction (the lower right direction in the figure). For example, the angle between the first direction and the second direction is 30°-90°, such as 45°, 60°, or 70°. Therefore, when the touch structure is provided on the display panel, the above-mentioned design of the plurality of first traces 11 and the plurality of second traces 12 can ensure that the extension positions of the plurality of first traces 11 and the plurality of second traces 12 avoid the light-emitting areas of the plurality of sub-pixels in the display panel, thereby avoiding affecting the display effect of the plurality of sub-pixels.

[0062] It should be noted that, in the embodiments of the present disclosure, the overall extension direction of the first trace or the second trace refers to the macroscopic extension direction of the first trace or the second trace as a whole when observing the first conductive layer and the second conductive layer as a whole.

[0063] For example, in some embodiments, in a touch unit, the plurality of first traces 11 include at least one (e.g., multiple) first connecting traces 11A, and the first overlapping portion 111 of the first connecting trace 11A is electrically connected to the second overlapping portion 121 of at least some of the second traces 12 among the plurality of second traces 12 overlapping the first overlapping portion through a via I in the spacing insulating layer.

[0064] For example, the first overlapping portions 111 of the plurality of first connecting traces 11A are respectively electrically connected to the second overlapping portions 121 of the two adjacent second traces 12 through the vias I in the spacing insulating layer, so as to electrically connect the two adjacent second traces 12. Figure 8 shown.

[0065] For example, the second overlapping portions 121 of any two adjacent second lines 12 are electrically connected through at least one of the first connecting lines 11A. For example, the second overlapping portions 121 of two partially adjacent second lines 12 are electrically connected through the same first connecting line 11A, or the second overlapping portions 121 of two partially adjacent second lines 12 are electrically connected through different first connecting lines 11A. Thus, in each touch unit, all the second lines 12 can be electrically connected together through multiple first connecting lines 11A to constitute a touch sensing line of the touch unit for sensing touch operations. That is, in the embodiment of the present disclosure, the multiple first connecting lines 11A included in the multiple first lines 11 are used to electrically connect the multiple second lines 12, so the multiple first connecting lines 11A and the multiple second lines 12 together constitute the touch sensing line of the touch unit for sensing touch operations.

[0066] For example, Figure 6 As shown, the plurality of first connection lines 11A are arranged at intervals, for example, the plurality of first connection lines 11A are arranged at intervals among the plurality of first lines 11. For example, in some examples, the plurality of first lines 11 further include a plurality of second connection lines 11B, and the plurality of second connection lines 11B are arranged at intervals from the first connection lines 11A, for example, the plurality of second connection lines 11B are respectively arranged between adjacent first connection lines 11A, and the plurality of second connection lines 11B can serve as touch lines for a plurality of touch units. For example, Figure 6-Figure 8 The touch unit shown in FIG. Figure 5 In the touch unit T13, the plurality of second connecting traces 11B can serve as the touch traces L11 and L12 of the plurality of touch units T11 and T12. For example, the plurality of second connecting traces 11B are insulated from the plurality of first connecting traces 11A and the plurality of second traces 12, that is, in the first conductive layer, there is a gap between the plurality of second connecting traces 11B and the plurality of first connecting traces 11A.

[0067] For example, in some embodiments, Figure 5 As shown, the touch structure may further include a touch driving circuit D, and the first connecting traces 11A are electrically connected to the touch driving circuit D. For example, in some examples, the plurality of second connecting traces 11B and the plurality of first connecting traces 11A are electrically connected to the touch driving circuit D, so that the plurality of second connecting traces 11B and the plurality of first connecting traces 11A can obtain electrical signals from the touch driving circuit D or transmit electrical signals to the touch driving circuit D. For example, the touch driving circuit D may be any form of control circuit, such as a touch chip.

[0068] For example, in some embodiments, Figure 6 As shown, the first conductive layer M1 may further include a third segment 113 connected to the plurality of first connecting traces 11A and extending in a different direction. For example, the third segment 113 may extend perpendicular to the first direction. In this case, the third segment 113 may serve as part of the first connecting trace 11A and, together with the plurality of second traces 12, function as a touch sensing line for sensing touch operations. Thus, the provision of the third segment 113 expands the extension range of the touch sensing line, thereby improving the touch accuracy and sensitivity of the touch structure.

[0069] For example, in some embodiments, Figure 6 As shown, the first end of the third segment 113 is connected to multiple first connecting traces 11A, and the second end of the third segment 113 is spaced from multiple adjacent second connecting traces 11, and the minimum spacing distance G1 is 1μm-6μm, for example, 1μm, 2μm, 3μm, 4μm, 4.5μm, 5μm or 5.5μm, etc., thereby achieving a longer extension length of the third segment 113 while also ensuring that the first connecting trace 11A and the second connecting trace 11B have a sufficient safety distance to maintain insulation.

[0070] For example, in some embodiments, Figure 6 As shown, the first conductive layer M1 may further include a fourth segment 114 that is spaced apart from the plurality of first traces 11 and extends in a different direction. For example, the extension direction of the fourth segment 114 is the same as the extension direction of the third segment 113. For example, both ends of the fourth segment 114 are spaced apart from the plurality of first traces 11, and the minimum distances G2 and G3 of the spacing are 1 μm-6 μm, such as 1 μm, 2 μm, 3 μm, 4 μm, 4.5 μm, 5 μm, or 5.5 μm. In the embodiment of the present disclosure, the fourth segment 114 serves as a virtual line and is not connected to any circuit structure. The provision of the fourth segment 114 can make the pattern of the first conductive layer M1 uniform. During the fabrication process of the touch structure, the etching uniformity of the pattern of the first conductive layer M1 can be maintained, so that the first conductive layer M1 has a higher fabrication precision and the visual effect of the entire surface of the fabricated first conductive layer M1 is more uniform.

[0071] For example, in some embodiments, Figure 7 As shown, the plurality of second traces 12 may further include a fifth segment 123 connected to the second segment 122 of the plurality of second traces 12 and extending in a different direction. For example, the extension direction of the fifth segment 123 intersects the second direction, for example, perpendicularly. For example, in a direction perpendicular to the surface of the substrate B, the fifth segment 123 does not overlap with the plurality of first traces 11. In the embodiments of the present disclosure, the fifth segment 123 can extend the extension range of the plurality of second traces 12, serving as a touch sensing line, thereby improving the touch accuracy and sensitivity of the touch structure.

[0072] For example, in some embodiments, the line width of the plurality of first traces 11 (i.e., the dimension perpendicular to the extension direction of the traces) may be 2 μm-4 μm, such as 2.5 μm, 3 μm, or 3.5 μm. The line width of the plurality of second traces 12 may be 2 μm-4 μm, such as 2.5 μm, 3 μm, or 3.5 μm. The line width of the plurality of first traces 11 and the line width of the plurality of second traces 12 may be the same or different.

[0073] For example, in the embodiment of the present disclosure, the first conductive layer M1 and the second conductive layer M2 of the touch structure may be metal layers or transparent conductive layers, and their materials may include metal materials such as copper and aluminum or transparent metal oxides such as ITO and IZO. The substrate B may include inorganic insulating materials such as silicon oxide, silicon nitride or silicon oxynitride or organic insulating materials such as polyimide. The spacer insulating layer I may also include inorganic insulating materials such as silicon oxide, silicon nitride or silicon oxynitride or organic insulating materials such as polyimide. For example, Figure 9 As shown, the second conductive layer M2 of the touch structure may be covered with a protective insulating layer P. The protective insulating layer P may also include an inorganic insulating material such as silicon oxide, silicon nitride, or silicon oxynitride, or an organic insulating material such as polyimide, to protect the second conductive layer M2. The embodiments of the present disclosure do not specifically limit other structures and materials of the touch structure.

[0074] At least one embodiment of the present disclosure further provides a display panel, which includes a display substrate and a touch structure provided by an embodiment of the present disclosure, for example, Figure 10 shows a partial plan view of the display panel, Figure 10 The touch structure shown in FIG. Figure 5 The part of the touch structure in the dotted box; Figure 11 A partial cross-sectional schematic diagram of a sub-pixel of the display panel is shown.

[0075] like Figure 11As shown, the display substrate includes a base substrate 1011 and a driving circuit layer, a light-emitting device layer and an encapsulation layer EN arranged in sequence on the base substrate 1011; the touch structure is arranged on the side of the encapsulation layer EN away from the base substrate 1011, and at this time, the first conductive layer M1 is closer to the encapsulation layer EN than the second conductive layer M2.

[0076] For example, a display substrate includes a plurality of pixel units arranged in an array for display operation. Each of the plurality of pixel units includes a plurality of sub-pixels. Each of the plurality of sub-pixels includes a pixel driving circuit disposed in a driving circuit layer and a light-emitting device EM disposed in a light-emitting device layer. The light-emitting device EM has a light-emitting area LE.

[0077] For example, Figure 11 As shown, the pixel driving circuit includes structures such as a thin film transistor T and a storage capacitor C. The thin film transistor T includes an active layer 1021, a gate electrode 1022, a gate insulating layer 1014 (for example, including a first gate insulating layer 1014A and a second gate insulating layer 1014B), an interlayer insulating layer 1015, and source-drain electrodes (including a source electrode 1023 and a drain electrode 1024) arranged in sequence on a substrate 1011. The storage capacitor C includes a first electrode plate 1031 and a second electrode plate 1032. For example, the first electrode plate 1031 is arranged on the same layer as the gate electrode 1022, and the second electrode plate 1032 is between the gate insulating layer 1014 and the interlayer insulating layer 1015.

[0078] It should be noted that in the embodiments of the present disclosure, two structural layers or functional layers are arranged in the same layer, which means that the two structural layers or functional layers can be formed using the same material layer and the same preparation process (such as composition process, etc.), thereby simplifying the preparation process of the display substrate.

[0079] For example, the pixel driving circuit can be formed into a structure such as 2T1C (two thin film transistors and one storage capacitor), 6T1C (six thin film transistors and one storage capacitor), etc., thereby including multiple thin film transistors having the following characteristics: Figure 11 The stacked structure shown is similar or identical to the structure shown, Figure 11 Only the thin film transistor directly connected to the light emitting device is shown in the figure. The thin film transistor can be a driving thin film transistor or a light emitting control thin film transistor.

[0080] For example, Figure 11 As shown, the display substrate may further include a planarization layer 1016, a pixel definition layer 1017, and spacers 1018. The planarization layer 1016 is used to planarize the pixel driving circuit. The pixel definition layer 1017 is disposed on a side of the planarization layer 1016 away from the pixel driving circuit. The pixel definition layer 1017 includes a plurality of sub-pixel openings for defining the light-emitting areas LE of the plurality of sub-pixels.

[0081] For example, the light-emitting device EM includes an anode layer 1041, a light-emitting layer 1042, and a cathode layer 1043. The anode layer 1041 is connected to the source electrode 1023 of the thin film transistor T through a via in the planarization layer 1016. For example, the cathode layer 1043 is formed entirely on the base substrate 1011. For example, in some examples, an auxiliary light-emitting layer (not shown in the figure) may be included between the anode layer 1041 and the light-emitting layer 1042, and between the cathode layer 1043 and the light-emitting layer 1042 to facilitate light emission from the light-emitting layer 1042. For example, the auxiliary light-emitting layer may include one or more of an electron transport layer, an electron injection layer, a hole transport layer, and a hole injection layer (not shown in the figure).

[0082] For example, in some embodiments, Figure 11 As shown, the display substrate may further include a buffer layer 1012 disposed on the base substrate 1011. The buffer layer 1012 may provide a flat surface and prevent impurities such as water and oxygen from penetrating from the base substrate 1011 into functional structures such as the pixel driving circuit, thereby protecting other functional structures on the base substrate 1011.

[0083] For example, in some embodiments, Figure 11 As shown, the display panel may further include a black matrix layer BM, which is disposed on a side of the touch structure away from the substrate 1011 (as shown in the figure) or on a side closer to the substrate 1011. The black matrix layer BM includes a plurality of first light-transmitting openings BM1 and a plurality of second light-transmitting openings BM2. The plurality of first light-transmitting openings BM1 are configured to respectively pass light emitted by the plurality of light-emitting devices EM. For example, the orthographic projections of the plurality of first light-transmitting openings BM1 on the substrate 1011 may at least partially overlap, for example, completely overlap, with the orthographic projections of the light-emitting areas LE of the plurality of light-emitting devices EM on the substrate 1011.

[0084] For example, in some examples, each pixel unit includes one red sub-pixel, one blue sub-pixel, and two green sub-pixels. Figure 10 As shown, the plurality of first light-transmitting openings BM1 include a first light-transmitting opening R corresponding to the light-emitting device of the red sub-pixel, a first light-transmitting opening B corresponding to the light-emitting device of the blue sub-pixel, and a first light-transmitting opening G corresponding to the light-emitting device of the green sub-pixel.

[0085] For example, in some embodiments, Figure 11As shown, the driving circuit layer includes multiple light-transmitting portions TP. At least some of the second light-transmitting openings BM2 are each corresponding to at least one of the multiple light-transmitting portions TP. In addition, in the corresponding second light-transmitting openings BM2 and light-transmitting portions TP, the orthographic projection of the second light-transmitting openings BM2 on the base substrate 1011 at least partially overlaps with the orthographic projection of the light-transmitting portions TP on the base substrate 1011. The second light-transmitting openings BM2 and the light-transmitting portions TP can be used to pass sensing light, such as sensing light for texture recognition, which will be described in detail later.

[0086] For example, at least part of the light-transmitting portion TP is disposed between the light-emitting regions LE of the light-emitting devices EM of adjacent sub-pixels in a direction parallel to the surface of the base substrate 1011. For example, multiple light-transmitting portions TP are disposed between the pixel driving circuits of adjacent sub-pixels.

[0087] For example, in some embodiments, the plurality of pixel units include at least one first pixel unit, and the plurality of sub-pixels included in the first pixel unit correspond to and overlap with the plurality of second light-transmitting openings in a direction perpendicular to the display substrate. For example, if the plurality of pixel units are all first pixel units, then each sub-pixel in the display panel corresponds to a second light-transmitting opening BM2.

[0088] For example, in some examples, such as Figure 10 As shown, the plurality of second light-transmitting openings BM2 include a second light-transmitting opening B1, a second light-transmitting opening B2, a second light-transmitting opening B3, and a second light-transmitting opening B4, respectively corresponding to different sub-pixels of the first pixel unit. For example, the second light-transmitting opening B1, the second light-transmitting opening B2, the second light-transmitting opening B3, and the second light-transmitting opening B4 are all different in shape and size.

[0089] For example, in some embodiments, in a direction perpendicular to the base substrate 1011 (vertical direction in the figure), the plurality of first traces 11 and the plurality of second traces 12 do not overlap with the plurality of first light-transmitting openings BM1 and the plurality of second light-transmitting openings BM2.

[0090] For example, in some embodiments, Figure 11As shown, in a direction parallel to the base substrate 1011 (horizontal direction in the figure), a distance H1 between the plurality of first light-transmitting openings BM1 and the plurality of first traces 11 and / or the plurality of second traces 12 is greater than 1 μm, for example, greater than 2.5 μm, for example, H1 is 3 μm or 3.5 μm, etc. For example, in some embodiments, in a direction parallel to the base substrate 1011, a distance H2 between the plurality of second light-transmitting openings BM2 and the plurality of first traces 11 and / or the plurality of second traces 12 is also greater than 1 μm, for example, greater than 2.5 μm, for example, H2 is 3 μm or 3.5 μm, etc. Therefore, the distance between the multiple first light-transmitting openings BM1 and the multiple second light-transmitting openings BM2 and the multiple first wirings 11 and the multiple second wirings 12 is far enough, and the multiple first wirings 11 and the multiple second wirings 12 are fully blocked by the black matrix layer BM, so that even in strong light, the user will not see the multiple first wirings 11 and the multiple second wirings 12 from the surface of the display panel, thereby improving the user's visual experience.

[0091] For example, in some embodiments, Figure 10 As shown, a first wiring 11 or a second wiring 12 is provided between two adjacent second light-transmitting openings BM2 among the plurality of second light-transmitting openings BM2. Figure 10 In the example shown, a first wiring 11 is provided between the second light-transmitting opening B1 and the second light-transmitting opening B2, a second wiring 12 is provided between the second light-transmitting opening B2 and the second light-transmitting opening B3, and a first wiring 11 is provided between the second light-transmitting opening B3 and the second light-transmitting opening B4. Thus, the plurality of second light-transmitting openings BM2 are evenly distributed between the plurality of first wirings 11 and the plurality of second wirings 12, contributing to uniformity of the display panel.

[0092] For example, in a direction perpendicular to the base substrate 1011 , the plurality of first wirings 11 and the plurality of second wirings 12 do not overlap with the light emitting areas LE of the light emitting devices EM of the plurality of sub-pixels, thereby avoiding affecting the display effects of the plurality of sub-pixels.

[0093] For example, in some embodiments, Figure 10 As shown, in a direction parallel to the plate surface of the base substrate 1011, at least one second light-transmitting opening BM2 among the multiple second light-transmitting openings BM2 is located between the light-emitting area LE of the light-emitting device of a sub-pixel and a first routing line 11 or a second routing line 12, and the distance between the light-emitting area LE of the light-emitting device of the sub-pixel and the first routing line 11 or the second routing line 12 adjacent to the at least one second light-transmitting opening BM2 is greater than the distance between the light-emitting area LE of the light-emitting device of the sub-pixel and the other first routing lines 11 or the second routing lines 12.

[0094] For example, in some examples, such as Figure 10As shown, in a direction parallel to the surface of the base substrate 1011, the second light-transmitting opening B2 is located between the light-emitting area LE of the light-emitting device of the blue sub-pixel and a second routing line 12. The distance H3 between the light-emitting area LE of the light-emitting device of the blue sub-pixel and the second routing line 12 adjacent to the second light-transmitting opening B2 is greater than the distance H4 between the light-emitting area of ​​the light-emitting device of the blue sub-pixel and other first routing lines 11 or second routing lines 12. Thus, the first light-transmitting opening BM1, the second light-transmitting opening BM2, and the multiple first routing lines 11 and the multiple second routing lines 12 are evenly arranged in the display panel to prevent the display function and touch function of the display panel from interfering with each other, thereby improving the display and touch effects of the display panel.

[0095] For example, in some embodiments, Figure 11 As shown, the display panel may further include a plurality of color filters CF respectively disposed in the plurality of first light-transmitting openings BM1. The plurality of color filters CF may include filters of a plurality of different colors to correspond to the light-emitting devices of sub-pixels of different colors. For example, the corresponding sub-pixels may have the same color as the color filters CF, so that after the light emitted from the light-emitting devices of the sub-pixels passes through the color filters CF, the color of the emitted light is purer, thereby improving the display effect of the display panel.

[0096] For example, in some embodiments, Figure 11 As shown, the display panel may further include a textured touch surface S1 and an image sensor array SA. The image sensor array SA is disposed on a side of the drive circuit layer away from the light-emitting device layer and includes a plurality of image sensors S2. The plurality of image sensors S2 are configured to receive light emitted from the plurality of light-emitting devices EM in the light-emitting device layer, reflected by textures (e.g., fingerprints or palm prints) on the textured touch surface S1, and then passing through the second light-transmitting openings BM2 and the light-transmitting portions TP to reach the plurality of image sensors S2 for texture acquisition. Thus, the display panel also has a texture recognition function.

[0097] For example, in some embodiments, the image sensor SA can be set on the side of the base substrate 1011 away from the driving circuit layer, so that during the preparation process, it can be attached to the base substrate 1011 after the display substrate is prepared, thereby not affecting the process of the display substrate.

[0098] For example, in some embodiments, Figure 11 As shown, the display panel may further include a transparent cover plate CV, which is disposed on a side of the black matrix layer BM away from the base substrate 1011. For example, the surface of the transparent cover plate CV is formed as a textured touch surface S1. For example, the transparent cover plate CV may be a glass cover plate.

[0099] For example, in some embodiments, the display substrate may be a flexible display substrate, in which case the base substrate 1011 may include a flexible insulating material such as polyimide (PI). For example, in some examples, the base substrate 1011 may be a laminated structure in which multiple flexible layers and multiple barrier layers are alternately arranged, such as a laminated structure in which two flexible layers and two barrier layers are alternately arranged. In this case, the flexible layer may include polyimide, and the barrier layer may include an inorganic insulating material such as silicon oxide, silicon nitride, or silicon oxynitride. For example, in some embodiments, the display substrate may also be a rigid substrate, in which case the base substrate 1011 may be a rigid substrate such as glass or quartz.

[0100] For example, in the embodiment of the present disclosure, the buffer layer 1012 can be made of inorganic insulating materials such as silicon oxide, silicon nitride, or silicon oxynitride, the active layer 1021 can be made of materials such as polycrystalline silicon and metal oxide, the gate insulating layer 1014 can be made of inorganic insulating materials such as silicon oxide, silicon nitride, or silicon oxynitride, the gate 1022 and the first electrode 1031 can be made of metal materials such as copper, aluminum, titanium, and cobalt, and can be formed into a single-layer structure or a multi-layer structure, such as titanium / aluminum / titanium, molybdenum / aluminum / molybdenum, etc. The diode 1032 can be made of a metal or alloy such as copper, aluminum, titanium, or cobalt. The interlayer insulating layer 1015 can be made of an inorganic insulating material such as silicon oxide, silicon nitride, or silicon oxynitride. The source and drain electrodes 1023 and 1024 can be made of a metal such as copper, aluminum, titanium, or cobalt. They can be formed into a single-layer structure or a multi-layer structure, such as a titanium / aluminum / titanium or molybdenum / aluminum / molybdenum multi-layer structure. The material of the anode layer 1041 can include a metal oxide such as ITO or IZO, or a metal such as Ag, Al, Mo, or their alloys. The material of the light-emitting layer 1042 and the auxiliary light-emitting layer are organic materials. The material of the light-emitting layer 1042 can be selected to emit a light of a certain color (e.g., red, blue, or green) as required. The material of the cathode layer 1043 can include a metal such as Mg, Ca, Li, or Al, or an alloy thereof, or a metal oxide such as IZO or ZTO, or an organic material with conductive properties such as PEDOT / PSS (poly(3,4-ethylenedioxythiophene) / polystyrene sulfonate). The planarization layer 1016 , the pixel definition layer 1017 , and the spacer 1018 may be made of an organic insulating material such as polyimide.

[0101] For example, the encapsulation layer EN is a composite encapsulation layer, including a first inorganic encapsulation layer 1051, a first organic encapsulation layer 1052, and a second inorganic encapsulation layer 1053 stacked in sequence. For example, the first inorganic encapsulation layer 1051 and the second inorganic encapsulation layer 1053 can be formed of inorganic materials such as silicon nitride, silicon oxide, and silicon oxynitride, and the first organic encapsulation layer 1052 can be formed of organic materials such as polyimide (PI) and epoxy resin. This composite encapsulation layer can provide multiple protections for the functional structures on the display panel, providing a better encapsulation effect. The embodiments of the present disclosure do not specifically limit the materials of the various functional structures on the display panel.

[0102] There are a few points to note:

[0103] (1) The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure. Other structures may refer to conventional designs.

[0104] (2) For the sake of clarity, the thickness of layers or regions in the drawings used to describe the embodiments of the present disclosure are exaggerated or reduced, i.e., these drawings are not drawn to scale. It is understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "under" another element, the element may be "directly" "on" or "under" the other element or intervening elements may be present.

[0105] (3) In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.

[0106] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. The protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A display panel, comprising: The display substrate comprises a base substrate and a driving circuit layer, a light emitting device layer and an encapsulation layer sequentially arranged on the base substrate; A touch structure, disposed on a side of the encapsulation layer away from the substrate, comprising a substrate and a plurality of touch units disposed on the substrate, wherein at least one of the plurality of touch units comprises a first conductive layer, a spacer insulating layer, and a second conductive layer sequentially stacked on the substrate; and A black matrix layer is provided on a side of the touch structure away from the base substrate or on a side close to the base substrate, and includes a plurality of first light-transmitting openings and a plurality of second light-transmitting openings. The light emitting device layer includes a plurality of light emitting devices, and the plurality of first light-transmitting openings are configured to respectively pass light emitted by the plurality of light emitting devices. The driving circuit layer includes a plurality of light-transmitting portions, each of at least a portion of the second light-transmitting openings is arranged corresponding to at least one of the plurality of light-transmitting portions, and in the correspondingly arranged second light-transmitting openings and light-transmitting portions, an orthographic projection of the second light-transmitting opening on the base substrate at least partially overlaps with an orthographic projection of the light-transmitting portion on the base substrate; The first conductive layer includes a first pattern formed by a plurality of first traces spaced apart from each other, and the second conductive layer includes a second pattern formed by a plurality of second traces spaced apart from each other, at least one of the plurality of first traces includes a first overlapping portion overlapping with at least one of the plurality of second traces, and at least one of the plurality of second traces includes a second overlapping portion overlapping with the first overlapping portion, and a first segment where the first overlapping portion is located and a second segment where the second overlapping portion is located have different extension directions, wherein the first segment is a segment of the first trace extending with the first overlapping portion as an endpoint, and the second segment is a segment of the second trace extending with the second overlapping portion as an endpoint; a dimension of a first overlapping portion in any direction is greater than or equal to a line width of the first trace perpendicular to its extension direction and less than or equal to twice the line width of the first trace perpendicular to its extension direction; a dimension of a second overlapping portion in any direction is greater than or equal to a line width of the second trace perpendicular to its extension direction and less than or equal to twice the line width of the second trace perpendicular to its extension direction.

2. The display panel according to claim 1, wherein The orthographic projections of the first routing line and the second routing line on the base substrate do not overlap with the orthographic projections of the first light-transmitting opening and the second light-transmitting opening on the base substrate.

3. The display panel according to claim 2, wherein: In a direction parallel to the base substrate, a distance between the plurality of second light-transmitting openings and the plurality of first wirings and / or the plurality of second wirings is greater than 1 μm.

4. The display panel according to claim 2, wherein: In a direction parallel to the base substrate, a distance between the plurality of first light-transmitting openings and the plurality of first wirings and / or the plurality of second wirings is greater than 1 μm.

5. The display panel according to claim 1, wherein: The display substrate has a plurality of pixel units arranged in an array, each of the plurality of pixel units includes a plurality of sub-pixels, each of the plurality of sub-pixels includes a pixel driving circuit provided in the driving circuit layer and a light-emitting device provided in the light-emitting device layer, and the light-emitting device has a light-emitting area; At least part of the plurality of light-transmitting portions is disposed between light-emitting regions of the light-emitting devices of adjacent sub-pixels. The display panel according to claim 5 , wherein: In a direction parallel to the substrate, at least one of the multiple second light-transmitting openings is located between a light-emitting area of ​​a sub-pixel light-emitting device and a first routing line or a second routing line, and a distance between the light-emitting area of ​​the light-emitting device of the sub-pixel and the first routing line or the second routing line adjacent to the at least one second light-transmitting opening is greater than a distance between the light-emitting area of ​​the light-emitting device of the sub-pixel and other first routing lines or second routing lines.

7. The display panel according to claim 5, wherein: The plurality of pixel units include at least one first pixel unit, wherein the plurality of sub-pixels included in the first pixel unit correspond to and overlap with the plurality of second light-transmitting openings in a direction perpendicular to the display substrate. 8 . The display panel according to claim 1 , further comprising a plurality of color filters respectively disposed in the plurality of first light-transmitting openings.

9. The display panel according to claim 1, further comprising a sensor array, in, The sensor array is arranged on a side of the driving circuit layer away from the light-emitting device layer, and includes a plurality of sensors. The plurality of sensors are configured to receive light emitted from a plurality of light-emitting devices in the light-emitting device layer, reflected by the texture on the texture surface, and reaching the plurality of sensors through the second light-transmitting opening and the light-transmitting portion.

10. The display panel according to claim 5, wherein: The orthographic projection of the touch structure on the substrate includes a touch grid, each of the touch grids corresponding to a light-emitting area of ​​at least one sub-pixel; At least one of the second light-transmitting openings and one of the sub-pixels are located in an area enclosed by the same touch grid.

11. The display panel according to claim 5, wherein: In a direction parallel to the substrate, the minimum distance between at least one of the second light-transmitting openings and a first routing line or a second routing line is smaller than the minimum distance between the light-emitting area of ​​the light-emitting device of the sub-pixel and the first routing line or the second routing line.

12. The display panel according to claim 1, wherein: The outer contour of the first light-transmitting opening includes an arc shape.

13. The display panel according to claim 5, wherein: The orthographic projection of at least one of the second light-transmitting openings on the base substrate is located within the orthographic projection of an area formed by connecting geometric centers of light-emitting areas of the light-emitting devices of four adjacent sub-pixels on the base substrate.

14. The display panel according to claim 13, wherein: The orthographic projection of the geometric center of the at least one second light-transmitting opening on the substrate does not overlap with the orthographic projection of the geometric center of the area formed by connecting the geometric centers of the light-emitting areas of the light-emitting devices of the four adjacent sub-pixels on the substrate.

15. The display panel according to claim 5, wherein: The area of ​​the second light-transmitting opening is smaller than the area of ​​the first light-transmitting opening.

16. A display panel comprising: The display substrate comprises a base substrate and a driving circuit layer, a light emitting device layer and an encapsulation layer sequentially arranged on the base substrate; A touch structure is provided on a side of the packaging layer away from the base substrate; as well as A black matrix layer is provided on a side of the touch structure away from the base substrate or on a side close to the base substrate, and includes a plurality of first light-transmitting openings and a plurality of second light-transmitting openings. The light emitting device layer includes a plurality of light emitting devices, and the plurality of first light-transmitting openings are configured to respectively pass light emitted by the plurality of light emitting devices. The driving circuit layer includes a plurality of light-transmitting portions, each of at least a portion of the second light-transmitting openings is arranged corresponding to at least one of the plurality of light-transmitting portions, and in the correspondingly arranged second light-transmitting openings and light-transmitting portions, an orthographic projection of the second light-transmitting opening on the base substrate at least partially overlaps with an orthographic projection of the light-transmitting portion on the base substrate; The orthographic projection of the touch structure on the base substrate includes a touch grid, and the touch grid does not overlap with the orthographic projections of the first light-transmitting opening and the second light-transmitting opening on the base substrate; The touch structure includes a first conductive layer and a second conductive layer. The first conductive layer includes a first pattern formed by a plurality of first traces spaced apart from each other. The second conductive layer includes a second pattern formed by a plurality of second traces spaced apart from each other. At least one of the plurality of first traces includes a first overlapping portion that overlaps with at least one of the plurality of second traces. At least one of the plurality of second traces includes a second overlapping portion that overlaps with the first overlapping portion. A first segment where the first overlapping portion is located and a second segment where the second overlapping portion is located have different extension directions. The first segment is a segment of the first trace extending from the first overlapping portion as an endpoint, and the second segment is a segment of the second trace extending from the second overlapping portion as an endpoint. A dimension of a first overlapping portion in any direction is greater than or equal to a line width of the first trace perpendicular to the extending direction and less than or equal to twice the line width of the first trace perpendicular to the extending direction. A dimension of a second overlapping portion in any direction is greater than or equal to a line width of the second trace perpendicular to the extending direction and less than or equal to twice the line width of the second trace perpendicular to the extending direction.

17. The display panel according to claim 16, wherein: The orthographic projections of the first routing line and the second routing line on the base substrate do not overlap with the orthographic projections of the first light-transmitting opening and the second light-transmitting opening on the base substrate.

18. The display panel according to claim 16, wherein: The display substrate has a plurality of pixel units arranged in an array, each of the plurality of pixel units includes a plurality of sub-pixels, each of the plurality of sub-pixels includes a pixel driving circuit provided in the driving circuit layer and a light-emitting device provided in the light-emitting device layer, and the light-emitting device has a light-emitting area; An orthographic projection of the second light-transmitting opening on the base substrate does not overlap with a light-emitting area of ​​the light-emitting device of the sub-pixel.

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