Touch panel and touch display panel

Abstract

The application relates to a touch panel and a touch display panel. The touch panel comprises a substrate, the substrate comprising a front surface; the front surface comprising a first direction and a second direction intersecting each other. A plurality of first touch electrodes extending along the first direction and arranged along the second direction are arranged on the front surface, the first touch electrodes comprising a plurality of first sub-electrodes, adjacent first sub-electrodes being electrically connected by a connecting piece. A plurality of second touch electrodes extending along the second direction and arranged along the first direction are arranged on the front surface, the second touch electrodes comprising a plurality of second sub-electrodes, adjacent second sub-electrodes being electrically connected by a bridging piece. The bridging piece and the connecting piece partially overlap and are insulated from each other; the bridging piece is provided with at least one light-transmitting hole penetrating through the bridging piece. According to the embodiment of the application, the visibility of the film layer structure at the bridging piece can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a touch panel and a touch display panel. BACKGROUND

[0002] In the related art, with the continuous development of technology, the demand for human-computer interaction is also more and more extensive, and the vehicle-mounted central control display screen also begins to use a touch display panel in large quantities.

[0003] However, people's requirements for display effect are also getting higher and higher, but the visibility of the bridge of the touch panel is high, which greatly affects the display effect. SUMMARY

[0004] The present application provides a touch panel and a touch display panel to solve all or part of the deficiencies in the related art.

[0005] According to a first aspect of the embodiments of the present application, a touch panel is provided, comprising a substrate, the substrate comprising a front surface; the front surface comprising a first direction and a second direction intersecting each other;

[0006] A plurality of first touch electrodes extending along the first direction and arranged along the second direction are provided on the front surface, the first touch electrodes comprising a plurality of first sub-electrodes, adjacent first sub-electrodes being electrically connected by a connecting member;

[0007] A plurality of second touch electrodes extending along the second direction and arranged along the first direction are further provided on the front surface, the second touch electrodes comprising a plurality of second sub-electrodes, adjacent second sub-electrodes being electrically connected by a bridging member;

[0008] The bridging member and the connecting member partially overlap and are insulated from each other; at least one light-transmitting hole is provided on the bridging member, the light-transmitting hole penetrating through the bridging member.

[0009] As can be seen from the above embodiments, since the bridging component has at least one light-transmitting hole, light can pass through the bridging component via the light-transmitting hole, reducing the amount of light passing through the bridging component. This makes the film structure through which light passes from the bridging component relatively similar to the film structure through which light passes from the touch electrode. Consequently, the properties of the light passing through the film structure at the bridging component are similar to those at the touch electrode, reducing the visibility of the film structure at the bridging component and avoiding the problem of the film structure at the bridging component being directly observable, thus improving the display effect. Furthermore, since the light-transmitting hole reduces the contact area between the bridging component and the insulating material, the stress matching between the bridging component and the insulating material can be improved, thereby increasing the adhesion between the bridging component and the insulating material. Meanwhile, since the bridging component has a light-transmitting hole, it can be divided into at least two sub-bridging components located on both sides of the light-transmitting hole. Thus, when the bridging component is subjected to electrostatic discharge, even if one sub-bridging component is damaged or broken due to electrostatic discharge, the other sub-bridging components can still work normally, thereby improving the anti-electrostatic discharge capability of the bridging component.

[0010] In some embodiments, at least one of the light-transmitting holes extends through the bridging member to form at least two hole edges; the at least two hole edges have different shapes.

[0011] In some embodiments, at least one of the light-transmitting holes penetrates the bridging member to form at least two hole edges; the shape of the hole edges includes continuous, irregularly varying arcs, irregularly varying bi-fold lines, and irregularly varying tri-fold lines.

[0012] In some embodiments, the shape of the light-transmitting hole is the same as the shape of the bridging member.

[0013] In some embodiments, the light-transmitting hole is centrally located on the bridging member.

[0014] In some embodiments, the projection of the light-transmitting hole onto the substrate at least partially overlaps with the projection of the second touch electrode onto the substrate.

[0015] In some embodiments, the bridging member and the connecting member are insulated from each other by an insulating film, an insulating material is provided between the first touch electrode and the second touch electrode, and an insulating material is provided in the light-transmitting hole;

[0016] The insulating material in the light-transmitting hole, the insulating material between the first touch electrode and the second touch electrode, and the insulating material forming the insulating film are all the same insulating material.

[0017] In some embodiments, the bridging member is provided with the light-transmitting hole;

[0018] The width of the widest part of the light-transmitting hole is 43%-86% of the width of the bridging component, and the length of the longest part of the light-transmitting hole is 54%-73% of the length of the bridging component.

[0019] In some embodiments, the width of the widest part of the light-transmitting hole is 30mm-60mm; the length of the longest part of the light-transmitting hole is 140mm-190mm.

[0020] In some embodiments, the bridging member is provided with at least two light-transmitting holes arranged along the length direction of the bridging member;

[0021] Along the width direction of the bridging member, the width of each of the light-transmitting holes is 43%-86% of the width of the bridging member; along the length direction of the bridging member, the maximum sum of the lengths of at least two of the light-transmitting holes is 54%-73% of the length of the bridging member.

[0022] In some embodiments, along the width direction of the bridging member, the width of each of the light-transmitting holes is 30mm-60mm; along the length direction of the bridging member, the maximum sum of the lengths of at least two of the light-transmitting holes is 140mm-190mm.

[0023] In some embodiments, the bridging member is provided with at least two light-transmitting holes arranged along the width direction of the bridging member;

[0024] Along the width direction of the bridging member, the maximum sum of the widths of at least two of the light-transmitting holes is 43%-86% of the width of the bridging member; along the length direction of the bridging member, the length of each light-transmitting hole is 54%-73% of the length of the bridging member.

[0025] In some embodiments, along the width direction of the bridging member, the maximum sum of the widths of at least two of the light-transmitting holes is 30mm-60mm; along the length direction of the bridging member, the length of each light-transmitting hole is 140mm-190mm.

[0026] In some embodiments, the touch panel further includes a passivation layer, a first anti-reflection layer, and a second anti-reflection layer; the second anti-reflection layer is located on the side of the bridging member closer to the substrate, and the first anti-reflection layer is located on the side of the connector away from the substrate; the passivation layer is located on the side of the first anti-reflection layer away from the connector.

[0027] In some embodiments, the materials of the first touch electrode, the second touch electrode, the connector, and the bridging member include transparent conductive materials.

[0028] In some embodiments, the transparent conductive material includes indium tin oxide.

[0029] In some embodiments, the first touch electrode, the connector, and the second touch electrode are integrally formed; the thickness of the connector is less than the thickness of the first touch electrode and the second touch electrode, such that the first touch electrode, the connector, and the second touch electrode together form a groove, and the bridging member is disposed in the groove; both the first touch electrode and the second touch electrode include opposing first surfaces and second surfaces; the surface of the connector away from the bridging member is flush with the first surface, and the surface of the bridging member away from the connector is flush with the second surface.

[0030] In some embodiments, the bridging member includes a first edge and a second edge located on both sides thereon; the first edge and the second edge each include at least one inflection point, the at least one inflection point dividing the first edge into at least two first sub-edges, the at least one inflection point dividing the second edge into at least two second sub-edges; the included angle between the first sub-edges and the included angle between the second sub-edges are both greater than or equal to 90 degrees and less than 180 degrees.

[0031] In some embodiments, a portion of the first sub-edge and a portion of the second sub-edge are parallel to the first direction or the second direction, while another portion of the first sub-edge and another portion of the second sub-edge are neither parallel to nor perpendicular to the first direction or the second direction;

[0032] Alternatively, each of the first sub-edges and each of the second sub-edges is parallel to the first direction or the second direction;

[0033] Alternatively, each of the first sub-edges and each of the second sub-edges is neither parallel to nor perpendicular to the first direction or the second direction.

[0034] According to a second aspect of the embodiments of this application, a touch display panel is provided, including the touch panel described in any of the preceding claims.

[0035] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0036] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0037] Figure 1 A schematic diagram of a touch panel according to an embodiment of this application;

[0038] Figure 2 A partial schematic diagram of a touch panel according to an embodiment of this application;

[0039] Figure 3 A partial schematic diagram of another touch panel according to an embodiment of this application;

[0040] Figure 4 A partial cross-sectional view of a touch panel according to an embodiment of this application;

[0041] Figure 5 Another partial cross-sectional view of a touch panel according to an embodiment of this application;

[0042] Figure 6 A partial schematic diagram of another touch panel according to an embodiment of this application;

[0043] Figure 7 A partial cross-sectional view of another touch panel shown according to an embodiment of this application;

[0044] Figure 8 A schematic diagram of a bridging component is shown according to an embodiment of this application;

[0045] Figure 9 A schematic diagram of another bridging component shown in an embodiment of this application;

[0046] Figure 10 A schematic diagram of another bridging component shown in an embodiment of this application. Detailed Implementation

[0047] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0048] This application provides a touch panel 10, such as Figure 1 As shown, the touch panel 10 includes: a bridging member 11, a connecting member 14, a first touch electrode 15, a second touch electrode 17, and a substrate 19. The substrate 19 includes a front surface 191, on which the bridging member 11, the connecting member 14, the first touch electrode 15, and the second touch electrode 17 are all located. The front surface 191 is the surface of the substrate 19 used to support the touch structure.

[0049] The front surface 191 includes a first direction X and a second direction Y that are perpendicular to each other. In other embodiments, the first direction X and the second direction Y may not be perpendicular, but rather intersect. A plurality of first touch electrodes 15 extending along the first direction X and arranged along the second direction Y are provided on the front surface 191. Each first touch electrode 15 includes a plurality of first sub-electrodes 16, and adjacent first sub-electrodes 16 are electrically connected via connectors 14. A plurality of second touch electrodes 17 extending along the second direction Y and arranged along the first direction X are also provided on the front surface 191. Each second touch electrode 17 includes a plurality of second sub-electrodes 18, and adjacent second sub-electrodes 18 are electrically connected via bridging members 11. Connectors 14 and bridging members 11 partially overlap and are insulated from each other.

[0050] Figure 2 yes Figure 1 A magnified view of a portion of region Q1 in the middle area. Additionally, to more intuitively illustrate the structure of region Q1, Figure 2 The view shows the structure at region Q1, schematically shown from the side of substrate 19 away from the front side 191. (As shown...) Figure 2As shown, a connector 14 and a first touch electrode 15 extending along a first direction X are provided on the front side 191. The first touch electrode 15 includes a first sub-electrode 16. The connector 14 is electrically connected to adjacent first sub-electrodes 16, and the connector 14 can be integrally formed with the first touch electrode 15. A bridging member 11 and a second touch electrode 17 extending along a second direction Y are also provided on the front side 191. The second touch electrode 17 includes a second sub-electrode 18. The bridging member 11 is electrically connected to adjacent second sub-electrodes 18. The bridging member 11 and the connector 14 partially overlap and are insulated from each other. Specifically, an insulating film 13 is provided between the bridging member 11 and the connector 14, which insulates the bridging member 11 from the connector 14. The projection of the overlapping portion of the bridging member 11 and the connector 14 onto the substrate 19 lies within the projection of the insulating film 13 onto the substrate 19. Furthermore, at most a portion of the projections of the first sub-electrode 16 and the second sub-electrode 18 onto the substrate 19 lies within the projection of the insulating film 13 onto the substrate 19. For example, the projection of the first sub-electrode 16 onto the substrate 19 lies outside the projection of the insulating film 13 onto the substrate 19, and the projection of the second sub-electrode 18 onto the substrate 19 lies within the projection of the insulating film 13 onto the substrate 19. The two ends of the bridging member 11 extend beyond the insulating film 13 and are electrically connected to two adjacent second sub-electrodes 18, respectively. The bridging member 11 is provided with at least one light-transmitting hole 12. For example, the bridging member 11 may have one light-transmitting hole 12, or two light-transmitting holes 12, or three light-transmitting holes 12, but is not limited to these. At least one light-transmitting hole 12 divides the bridging member 11 into at least two sub-bridging members 111 located on both sides of the light-transmitting hole 12. For example, one light-transmitting hole 12 divides the bridging member 11 into two sub-bridging members 111, or two light-transmitting holes 12 divide the bridging member 11 into three sub-bridging members 111, or three light-transmitting holes 12 divide the bridging member 11 into four sub-bridging members 111, but is not limited to these. Partial insulating film 13 may be located in each light-transmitting hole 12 so that each light-transmitting hole 12 is filled with insulating film 13, or each light-transmitting hole 12 may not be filled with insulating film 13 so that each light-transmitting hole 12 remains hollow. Figure 3 The illustration shows one configuration where the bridging element 11 has two light-transmitting holes 12. For example... Figure 3 As shown, the bridging member 11 may have two light-transmitting holes 12. The two light-transmitting holes 12 divide the bridging member 11 into three sub-bridging members 111. Both light-transmitting holes 12 extend along the length direction of the bridging member 11 and may be arranged side by side on the bridging member 11, but are not limited thereto. In other embodiments, at least two light-transmitting holes 12 may be arranged on the bridging member 11 in other ways.

[0051] Figure 4 The touch panel 10 is shown. Figure 2 A cross-sectional view along the length of bridging member 11 at region Q2. (See attached image.)Figure 4 As shown, the touch panel 10 also includes a passivation layer 21, a first anti-reflection layer 22, and a second anti-reflection layer 23. Specifically, the second anti-reflection layer 23 is located on the side of the bridging member 11 closer to the substrate 19, and the first anti-reflection layer 22 is located on the side of the connector 14 away from the substrate 19. That is, the second anti-reflection layer 23 is located on the front surface 191 of the substrate 19, and the first anti-reflection layer 22 is located on the side of the second anti-reflection layer 23 away from the substrate 19. The first anti-reflection layer 22 and the second anti-reflection layer 23 are used to absorb light passing through the touch panel 10 and make the properties of the light passing through the touch panel 10 similar, thereby achieving the effect of making the structure of the touch panel 10 invisible. This avoids significant differences in the properties of the light passing through the touch panel 10, which could affect the display effect. The materials of the first anti-reflection layer 22 and the second anti-reflection layer 23 can be silicon oxide or silicon nitride, but are not limited to these. An insulating material is provided between the connector 14 and the adjacent second sub-electrode 18. The bridging component 11, insulating film 13, and connector 14 are located between the first anti-reflection layer 22 and the second anti-reflection layer 23. The bridging component 11 is located on the side of the second anti-reflection layer 23 away from the substrate 19, the insulating film 13 is located on the side of the bridging component 11 away from the second anti-reflection layer 23, the connector 14 is located on the side of the insulating film 13 away from the bridging component 11, and the passivation layer 21 is located on the side of the first anti-reflection layer 22 away from the connector 14. The passivation layer 21 serves an insulating function and can cover the entire touch panel 10. Alternatively, the passivation layer 21 can be patterned so that the projections of all metal traces within the touch panel 10 onto the substrate 19 are within the projection of the passivation layer 21 onto the substrate 19.

[0052] Figure 5 The touch panel 10 is shown. Figure 2 A cross-sectional view of region Q3. (See attached image.) Figure 5 As shown, the second anti-reflection layer 23 is located on the front side 191 of the substrate 19, the first anti-reflection layer 22 is located on the side of the second anti-reflection layer 23 away from the substrate 19, and the second touch electrode 17 is located between the first anti-reflection layer 22 and the second anti-reflection layer 23. It should be noted that... Figure 5 This is an example shown. Figure 2 The cross-sectional view at region Q3 shows a first sub-electrode 16 located between the first anti-reflection layer 22 and the second anti-reflection layer 23. However, in other similar film structures at region Q3, the first touch electrode 15 and the second touch electrode 17 are located between the first anti-reflection layer 22 and the second anti-reflection layer 23.

[0053] In conventional designs, due to the differences in the film structure between regions Q2 and Q3, the properties of the light passing through them also differ, resulting in different light characteristics. Consequently, the film structure in region Q2 is more visible and can be directly observed, thus compromising the display effect. However, in this embodiment, because the bridging component 11 has a light-transmitting hole 12, light can pass through the bridging component 11 via the light-transmitting hole 12, reducing the amount of light passing through the bridging component 11. This makes the film structure traversed by the light passing through region Q2 and region Q3 more similar, thus reducing the visibility of the film structure in region Q2 and preventing it from being directly observed, thereby improving the display effect. Furthermore, when the light-transmitting hole 12 is not filled with insulating material, it reduces the contact area between the bridging member 11 and the insulating film 13, thereby improving the stress matching between them and enhancing their adhesion. Simultaneously, because the bridging member 11 has the light-transmitting hole 12, it can be divided into at least two sub-bridging members 111 located on either side of the light-transmitting hole 12. This allows the bridging member 11 to function normally even if one sub-bridging member 111 is damaged or broken due to electrostatic discharge, thus improving its anti-electrostatic discharge capability.

[0054] In some embodiments, such as Figure 4 and Figure 6 As shown, a light-transmitting hole 12 penetrates the bridging member 11 to form two hole edges 121, but is not limited to this. The two hole edges 121 are located on the side of the bridging member 11 closer to the connector 14 and the side farther from the connector 14, respectively. Furthermore, the hole edges 121 can be continuous, irregularly changing arcs, or irregularly changing double-fold lines, or irregularly changing triple-fold lines, but are not limited to these. With this configuration, since the hole edges 121 are irregularly changing arcs or folds, light can be scattered in various directions by the irregular hole edges 121 when passing through the bridging member 11. This further reduces the visibility of the film structure in region Q2, further avoids the problem of the film structure in region Q2 being directly observable, and improves the display effect.

[0055] In some embodiments, the shape of the light-transmitting hole 12 is the same as the shape of the bridging member 11. It should be noted that even if there is a slight difference between the shape of the light-transmitting hole 12 and the shape of the bridging member 11 that is indistinguishable to the naked eye, the light-transmitting hole 12 and the bridging member 11 are still considered to have the same shape. This arrangement makes the design and fabrication of the light-transmitting hole 12 more convenient, thereby reducing the difficulty of the process and the production cost.

[0056] In some embodiments, the light-transmitting hole 12 is centrally located on the bridging member 11. This arrangement further simplifies the design and fabrication of the light-transmitting hole 12, thereby reducing the complexity of the process and lowering production costs.

[0057] In some embodiments, the projection of the light-transmitting hole 12 onto the substrate 19 at least partially overlaps with the projection of the second touch electrode 17 onto the substrate 19. This arrangement ensures that the portion of the bridging member 11 that does not overlap with the second touch electrode 17 has the light-transmitting hole 12, thereby ensuring that the light passing through region Q2 and the light passing through region Q3 traverse relatively similar film structures. Furthermore, this makes the properties of the light passing through region Q2 similar to those passing through region Q3, reducing the visibility of the film structure in region Q2 and preventing direct observation of the film structure in region Q2, thus improving the display effect.

[0058] In some embodiments, the bridging member 11 and the connecting member 14 are insulated from each other by an insulating film 13, an insulating material is provided between the first touch electrode 15 and the second touch electrode 17, and an insulating material is provided in the light-transmitting hole 12. The insulating material in the light-transmitting hole 12, the insulating material between the first touch electrode 15 and the second touch electrode 17, and the insulating material forming the insulating film 13 are all the same insulating material. This arrangement can reduce the types of materials, thereby reducing the difficulty of design and fabrication, and further reducing the process difficulty and production cost.

[0059] In some embodiments, the materials of the first touch electrode 15, the second touch electrode 17, the connector 14, and the bridging member 11 all include transparent conductive materials.

[0060] In some embodiments, the transparent conductive material may be indium tin oxide (ITO), but is not limited thereto.

[0061] In some embodiments, a light-transmitting hole 12 penetrates the bridging member 11 to form two hole edges 121, and the hole edge 121 on the side of the bridging member 11 closer to the connector 14 has a different shape than the hole edge 121 on the side of the bridging member 11 farther from the connector 14. This configuration, because the hole edge 121 on the side of the bridging member 11 closer to the connector 14 has a different shape than the hole edge 121 on the side of the bridging member 11 farther from the connector 14, allows light to be scattered in various directions by the two hole edges 121 with different shapes when passing through the bridging member 11. This further reduces the visibility of the film structure in region Q2, further avoids the problem of the film structure in region Q2 being directly observable, and improves the display effect.

[0062] In some embodiments, the bridging member 11 is provided with a light-transmitting hole 12. The width of the bridging member 11 extends along a first direction X, and the length of the bridging member 11 extends along a second direction Y. Similarly, the width of the light-transmitting hole 12 extends along the first direction X, and the length of the light-transmitting hole 12 extends along the second direction Y. The width of the light-transmitting hole 12 at its widest point is 43%-86% of the width of the bridging member 11. For example, the width of the light-transmitting hole 12 at its widest point can be 43% of the width of the bridging member 11, or 50%, 60%, 71%, or 86% of the width of the bridging member 11, but is not limited to these. Preferably, the width of the light-transmitting hole 12 at its widest point can be 71% of the width of the bridging member 11. The longest length of the light-transmitting aperture 12 is 54%-73% of the length of the bridging member 11. For example, the longest length of the light-transmitting aperture 12 can be 54% of the length of the bridging member 11, or 60% of the length of the bridging member 11, or 69% of the length of the bridging member 11, or 73% of the length of the bridging member 11, but is not limited to these. Preferably, the longest length of the light-transmitting aperture 12 can be 69% of the length of the bridging member 11. This arrangement allows for a better reduction in the visibility of the film structure in region Q2 through the light-transmitting aperture 12 while minimizing the impact on the conductivity of the bridging member 11.

[0063] In some embodiments, the bridging member 11 can be a rectangle with a width of 70mm and a length of 260mm. The width of the widest point of the light-transmitting hole 12 can be 30mm-60mm. For example, the width of the widest point of the light-transmitting hole 12 can be 30mm, or 40mm, or 50mm, or 60mm, but is not limited thereto. Preferably, the width of the widest point of the light-transmitting hole 12 can be 50mm. The length of the light-transmitting hole 12 can be 140mm-190mm. For example, the length of the longest point of the light-transmitting hole 12 can be 140mm, or 160mm, or 170mm, or 180mm, or 190mm, but is not limited thereto. Preferably, the longest length of the light-transmitting hole 12 can be 180mm.

[0064] In some embodiments, the bridging member 11 has at least two light-transmitting holes 12 arranged along the length direction of the bridging member 11. Along the width direction of the bridging member 11, the width of the widest point of each light-transmitting hole 12 can be 43%-86% of the width of the bridging member 11. For example, the width of the widest point of each light-transmitting hole 12 can be 43% of the width of the bridging member 11, or 50% of the width of the bridging member 11, or 60% of the width of the bridging member 11, or 71% of the width of the bridging member 11, or 86% of the width of the bridging member 11, but is not limited thereto. Preferably, the width of the widest point of each light-transmitting hole 12 can be 71% of the width of the bridging member 11. Along the length direction of the bridging member 11, the maximum value of the sum of the lengths of the at least two light-transmitting holes 12 can be 54%-73% of the length of the bridging member 11. For example, the maximum sum of the lengths of at least two light-transmitting holes 12 can be 54% of the length of the bridging element 11, or 60% of the length of the bridging element 11, or 69% of the length of the bridging element 11, or 73% of the length of the bridging element 11, but is not limited thereto. Preferably, the maximum sum of the lengths of at least two light-transmitting holes 12 can be 69% of the length of the bridging element 11. This arrangement allows for a better reduction in the visibility of the film structure in region Q2 through at least two light-transmitting holes 12, while minimizing the impact on the conductivity of the bridging element 11.

[0065] In some embodiments, the bridging member 11 can be a rectangle with a width of 70 mm and a length of 260 mm. When the bridging member 11 has at least two light-transmitting holes 12 arranged along the length direction of the bridging member 11, the width of the widest part of each light-transmitting hole 12 can be 30 mm to 60 mm along the width direction of the bridging member 11. For example, the width of the widest part of each light-transmitting hole 12 can be 30 mm, or 40 mm, or 50 mm, or 60 mm, but is not limited thereto. Preferably, the width of the widest part of each light-transmitting hole 12 can be 50 mm. The maximum sum of the lengths of the at least two light-transmitting holes 12 along the length direction of the bridging member 11 is 140 mm to 190 mm. For example, the maximum sum of the lengths of at least two light-transmitting holes 12 can be 140 mm, or 160 mm, or 170 mm, or 180 mm, or 190 mm, but is not limited to these. Preferably, the maximum sum of the lengths of at least two light-transmitting holes 12 can be 180 mm.

[0066] In some embodiments, the bridging member 11 is provided with at least two light-transmitting holes 12 arranged along the width direction of the bridging member 11. The maximum sum of the widths of the at least two light-transmitting holes 12 along the width direction of the bridging member 11 can be 43%-86% of the width of the bridging member 11. For example, the maximum sum of the widths of the at least two light-transmitting holes 12 can be 43% of the width of the bridging member 11, or 50% of the width of the bridging member 11, or 60% of the width of the bridging member 11, or 71% of the width of the bridging member 11, or 86% of the width of the bridging member 11, but is not limited thereto. Preferably, the maximum sum of the widths of the at least two light-transmitting holes 12 can be 71% of the width of the bridging member 11. Along the length of the bridging member 11, the longest length of each light-transmitting hole 12 can be 54%-73% of the length of the bridging member 11. For example, the longest length of each light-transmitting hole 12 can be 54% of the length of the bridging member 11, or 60% of the length of the bridging member 11, or 69% of the length of the bridging member 11, or 73% of the length of the bridging member 11, but is not limited thereto. Preferably, the longest length of each light-transmitting hole 12 can be 69% of the length of the bridging member 11. This arrangement allows for a better reduction in the visibility of the film structure in region Q2 through at least two light-transmitting holes 12, while minimizing the impact on the conductivity of the bridging member 11.

[0067] In some embodiments, the bridging member 11 can be a rectangle with a width of 70 mm and a length of 260 mm. When the bridging member 11 has at least two light-transmitting holes 12 arranged along the width direction of the bridging member 11, the maximum sum of the widths of the at least two light-transmitting holes 12 along the width direction of the bridging member 11 can be 30 mm to 60 mm. For example, the maximum sum of the widths of the at least two light-transmitting holes 12 can be 30 mm, or 40 mm, or 50 mm, or 60 mm, but is not limited thereto. Preferably, the maximum sum of the widths of the at least two light-transmitting holes 12 can be 50 mm. Along the length direction of the bridging member 11, the length of the longest point of each light-transmitting hole 12 can be 140 mm to 190 mm. For example, the longest length of each light-transmitting hole 12 can be 140 mm, or 160 mm, or 170 mm, or 180 mm, or 190 mm, but is not limited to these. Preferably, the longest length of each light-transmitting hole 12 can be 180 mm.

[0068] In some embodiments, Figure 7 The touch panel 10 is shown. Figure 2 A cross-sectional view of region Q2 along the width of bridging member 11. (See attached image.) Figure 7As shown, the first touch electrode 15 and the connector 14 are integrally formed. The thickness of the connector 14 is less than the thickness of the first sub-electrodes 16 located on both sides of it, so that the first sub-electrodes 16 and the connector 14 together form a groove, and the bridging member 11 is disposed inside the groove and extends within the groove. The thickness of the bridging member 11 and the connector 14 can be the same. This arrangement can further make the properties of light passing through region Q2 similar to those of light passing through region Q3, further reducing the visibility of the film structure in region Q2, so as to avoid the film structure in region Q2 being directly observed, and further improving the display effect. Furthermore, the fact that the bridging member 11 and the connector 14 have the same thickness can eliminate the need for adjusting the thickness of the bridging member 11 and the connector 14, thereby simplifying the process and reducing the difficulty of the process. Both the first touch electrode 15 and the second touch electrode 17 include a first surface 151 and a second surface 152 opposite to each other. The first surface 151 is located on the side of the first touch electrode 15 and the second touch electrode 17 away from the substrate, and the second surface 152 is located on the side of the first touch electrode 15 and the second touch electrode 17 closer to the substrate. The surface of the connector 14 away from the bridging member 11 is flush with the first surface 151, and the surface of the bridging member 11 away from the connector 14 is flush with the second surface 152. This arrangement allows the sum of the thicknesses of the bridging member 11, the insulating film 13, and the connector 14 to be less than or equal to the thickness of the first touch electrode 15 or the second touch electrode 17, thereby improving space utilization and, consequently, reducing the thickness of the touch panel.

[0069] In some embodiments, Figures 8 to 10 Several different shapes of bridging components 11 are shown. For example... Figures 8 to 10 As shown, the bridging member 11 includes a first edge 112 and a second edge 113 located on both sides thereon. The first edge 112 includes at least one first inflection point 114, and the second edge 113 includes at least one second inflection point 115. The at least one first inflection point 114 divides the first edge 112 into at least two first sub-edges 116. The at least one second inflection point 115 divides the second edge 113 into at least two second sub-edges 117. The first included angle α1 between the first sub-edges 116 and the second included angle α2 between the second sub-edges 117 are both greater than or equal to 90 degrees and less than 180 degrees. For example, the first included angle α1 and the second included angle α2 can both be 90 degrees, or the first included angle α1 and the second included angle α2 can both be 120 degrees, but are not limited thereto. This configuration can scatter the light passing through the bridging element 11 in different directions, thereby reducing the probability that the light passing through the bridging element 11 will propagate in a single direction. This, in turn, can reduce the visibility of the film structure in region Q2, further avoiding the problem that the film structure in region Q2 can be directly observed, and can improve the display effect.

[0070] In some embodiments, such as Figure 8As shown, two first inflection points 114 divide the first edge 112 into three first sub-edges 116. Specifically, the three first sub-edges 116 can be a first straight sub-edge 1161, a second straight sub-edge 1162, and a third straight sub-edge 1163. Two second inflection points 115 divide the second edge 113 into three second sub-edges 117. Specifically, the three second sub-edges 117 can be a fourth straight sub-edge 1171, a fifth straight sub-edge 1172, and a sixth straight sub-edge 1173. Part of the first sub-edges 116 and part of the second sub-edges 117 are parallel to the first direction X and the second direction Y, while other parts of the first sub-edges 116 and other parts of the second sub-edges 117 are neither parallel nor perpendicular to the first direction X and the second direction Y. Specifically, the first straight edge 1161 and the fourth straight edge 1171 bend towards the side of the bridging member 11 near the second touch electrode 17, the third straight edge 1163 and the sixth straight edge 1173 bend towards the side of the bridging member 11 near the first touch electrode 15, and the second straight edge 1162 and the fifth straight edge 1172 are parallel to the second direction Y. Furthermore, the first included angle a1 and the second included angle a2 can both be 120 degrees, but are not limited to this. The first included angle a1 and the second included angle a2 can also be any angle greater than 90 degrees and less than 180 degrees. Figure 8 The illustration shows one embodiment; in other embodiments, the shape of the bridging element 11 is not limited to this. This arrangement can scatter light passing through the bridging element 11 in different directions, thereby reducing the probability that light passing through the bridging element 11 propagates in a single direction. Consequently, the visibility of the film structure at region Q2 can be reduced, further avoiding the problem that the film structure at region Q2 can be directly observed, and improving the display effect.

[0071] In some embodiments, such as Figure 9 As shown, two first inflection points 114 divide the first edge 112 into three first sub-edges 116. Specifically, the three first sub-edges 116 can be a first straight sub-edge 1161, a second straight sub-edge 1162, and a third straight sub-edge 1163. Two second inflection points 115 divide the second edge 113 into three second sub-edges 117. Specifically, the three second sub-edges 117 can be a fourth straight sub-edge 1171, a fifth straight sub-edge 1172, and a sixth straight sub-edge 1173. Each first sub-edge 116 and each second sub-edge 117 is parallel to either the first direction X or the second direction Y. Specifically, the first straight sub-edge 1161, the fourth straight sub-edge 1171, the third straight sub-edge 1163, and the sixth straight sub-edge 1173 are all parallel to the second direction Y, and the second straight sub-edge 1162 and the fifth straight sub-edge 1172 are all parallel to the first direction X. Furthermore, the first included angle a1 and the second included angle a2 can both be 90 degrees. Figure 9The illustration shows one embodiment; in other embodiments, the shape of the bridging element 11 is not limited to this. This arrangement can scatter light passing through the bridging element 11 in different directions, thereby reducing the probability that light passing through the bridging element 11 propagates in a single direction. Consequently, the visibility of the film structure at region Q2 can be reduced, further avoiding the problem that the film structure at region Q2 can be directly observed, and improving the display effect.

[0072] In some embodiments, such as Figure 10 As shown, a first inflection point 114 divides the first edge 112 into two first sub-edges 116. Specifically, the two first sub-edges 116 can be a first straight sub-edge 1161 and a second straight sub-edge 1162. A second inflection point 115 divides the second edge 113 into two second sub-edges 117. Specifically, the two second sub-edges 117 can be a fourth straight sub-edge 1171 and a fifth straight sub-edge 1172. Each first sub-edge 116 and each second sub-edge 117 is neither parallel nor perpendicular to the first direction X or the second direction Y. Specifically, the first straight sub-edge 1161, the second straight sub-edge 1162, the fourth straight sub-edge 1171, and the fifth straight sub-edge 1172 are all bent towards the side of the bridging member 11 closer to the second touch electrode 17. Furthermore, the first included angle α1 and the second included angle α2 can both be 120 degrees, but are not limited to this. The first included angle α1 and the second included angle α2 can also be any angle greater than 90 degrees and less than 180 degrees. Figure 10 The illustration shows one embodiment; in other embodiments, the shape of the bridging element 11 is not limited to this. This arrangement can scatter light passing through the bridging element 11 in different directions, thereby reducing the probability that light passing through the bridging element 11 propagates in a single direction. Consequently, the visibility of the film structure at region Q2 can be reduced, further avoiding the problem that the film structure at region Q2 can be directly observed, and improving the display effect.

[0073] This application also provides a touch display panel that can be applied to application scenarios such as vehicle-mounted infotainment display panels, including any of the above-mentioned touch panels 10.

[0074] The above embodiments of this application can complement each other without causing conflict.

[0075] It should be noted that the dimensions of layers and regions may be exaggerated in the accompanying drawings for clarity. Furthermore, it is understood that when an element or layer is referred to as being "on" another element or layer, it can be directly on the other element, or there may be intermediate layers. Additionally, it is understood that when an element or layer is referred to as being "below" another element or layer, it can be directly below the other element, or there may be more than one intermediate layer or element. Furthermore, it is also understood that when a layer or element is referred to as being "between" two layers or two elements, it can be the only layer between the two layers or two elements, or there may be more than one intermediate layer or element. Similar reference numerals throughout indicate similar elements.

[0076] The term “multiple” means two or more, unless otherwise expressly defined.

[0077] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0078] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A touch panel, characterized in that, The substrate includes a front side; the front side includes intersecting first and second directions. The front surface is provided with a plurality of first touch electrodes extending along the first direction and arranged along the second direction. Each first touch electrode includes a plurality of first sub-electrodes, and adjacent first sub-electrodes are electrically connected by a connector. The front surface is also provided with a plurality of second touch electrodes extending along the second direction and arranged along the first direction. The second touch electrodes include a plurality of second sub-electrodes, and adjacent second sub-electrodes are electrically connected by a bridging member. The bridging component and the connecting component partially overlap and are insulated from each other; the bridging component is provided with at least one light-transmitting hole, which penetrates the bridging component; The first touch electrode is integrally formed with the connector; the thickness of the connector is less than that of the first touch electrode, such that the first sub-electrode and the connector together form a groove, and the bridging member is disposed in the groove; the first touch electrode includes a first surface and a second surface opposite to each other; the surface of the connector away from the bridging member is flush with the first surface, and the surface of the bridging member away from the connector is flush with the second surface.

2. The touch panel according to claim 1, characterized in that, At least one of the light-transmitting holes penetrates the bridging member to form at least two hole edges; the at least two hole edges have different shapes.

3. The touch panel according to claim 1, characterized in that, At least one of the light-transmitting holes penetrates the bridging member to form at least two hole edges; the shape of the hole edges includes continuous, irregularly varying arcs, irregularly varying double zigzag lines, and irregularly varying triple zigzag lines.

4. The touch panel according to claim 1, characterized in that, The shape of the light-transmitting hole is the same as the shape of the bridging component.

5. The touch panel according to claim 4, characterized in that, The light-transmitting hole is centrally located on the bridging component.

6. The touch panel according to claim 1, characterized in that, The projection of the light-transmitting hole onto the substrate at least partially overlaps with the projection of the second touch electrode onto the substrate.

7. The touch panel according to claim 1, characterized in that, The bridging component and the connecting component are insulated from each other by an insulating film, an insulating material is provided between the first touch electrode and the second touch electrode, and an insulating material is provided in the light-transmitting hole; The insulating material in the light-transmitting hole, the insulating material between the first touch electrode and the second touch electrode, and the insulating material forming the insulating film are all the same insulating material.

8. The touch panel according to claim 1, characterized in that, The bridging component is provided with the light-transmitting hole; The width of the widest part of the light-transmitting hole is 43%-86% of the width of the bridging component, and the length of the longest part of the light-transmitting hole is 54%-73% of the length of the bridging component.

9. The touch panel according to claim 8, characterized in that, The width of the widest part of the light-transmitting hole is 30mm-60mm; the length of the longest part of the light-transmitting hole is 140mm-190mm.

10. The touch panel according to claim 1, characterized in that, The bridging component is provided with at least two light-transmitting holes arranged along the length direction of the bridging component; Along the width direction of the bridging member, the width of the widest part of each of the light-transmitting holes is 43%-86% of the width of the bridging member; along the length direction of the bridging member, the maximum sum of the lengths of at least two of the light-transmitting holes is 54%-73% of the length of the bridging member.

11. The touch panel according to claim 10, characterized in that, Along the width direction of the bridging member, the width of the widest part of each of the light-transmitting holes is 30mm-60mm; along the length direction of the bridging member, the maximum sum of the lengths of at least two of the light-transmitting holes is 140mm-190mm.

12. The touch panel according to claim 1, characterized in that, The bridging component is provided with at least two light-transmitting holes arranged along the width direction of the bridging component; Along the width direction of the bridging member, the maximum sum of the widths of at least two of the light-transmitting holes is 43%-86% of the width of the bridging member; along the length direction of the bridging member, the longest length of each of the light-transmitting holes is 54%-73% of the length of the bridging member.

13. The touch panel according to claim 12, characterized in that, Along the width direction of the bridging member, the maximum sum of the widths of at least two of the light-transmitting holes is 30mm-60mm; along the length direction of the bridging member, the longest length of each light-transmitting hole is 140mm-190mm.

14. The touch panel according to claim 1, characterized in that, The touch panel further includes a passivation layer, a first anti-reflection layer, and a second anti-reflection layer; the second anti-reflection layer is located on the side of the bridging member closer to the substrate, and the first anti-reflection layer is located on the side of the connector away from the substrate; the passivation layer is located on the side of the first anti-reflection layer away from the connector.

15. The touch panel according to claim 1, characterized in that, The materials of the first touch electrode, the second touch electrode, the connector, and the bridging member all include transparent conductive materials.

16. The touch panel according to claim 15, characterized in that, The transparent conductive material includes indium tin oxide.

17. The touch panel according to claim 1, characterized in that, The bridging element includes a first edge and a second edge located on both sides thereon; the first edge and the second edge each include at least one inflection point, the at least one inflection point dividing the first edge into at least two first sub-edges, the at least one inflection point dividing the second edge into at least two second sub-edges; the included angle between the first sub-edges and the included angle between the second sub-edges are both greater than or equal to 90 degrees and less than 180 degrees.

18. The touch panel according to claim 17, characterized in that, A portion of the first sub-edge and a portion of the second sub-edge are parallel to the first direction or the second direction, while another portion of the first sub-edge and another portion of the second sub-edge are neither parallel to nor perpendicular to the first direction or the second direction. Alternatively, each of the first sub-edges and each of the second sub-edges is parallel to the first direction or the second direction; Alternatively, each of the first sub-edges and each of the second sub-edges is neither parallel to nor perpendicular to the first direction or the second direction.

19. A touch display panel, characterized in that, Includes the touch panel described in any one of claims 1 to 18.

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