Touch panel, touch display screen and display device

Abstract

A touch panel, a touch display screen, and a display device are provided, the touch panel comprising a first region and a second region, the first region being foldable, the first region being flat when the touch panel is in an unfolded state, and being bent when the touch panel is in a folded state, the first region comprising a plurality of first touch patterns arranged in an array along a first direction and a second direction when the touch panel is in the flat state, the plurality of first touch patterns being insulated from each other on the same layer, the first direction intersecting with the second direction, and the second region being connected to the first region. The touch panel has high bending resistance and high touch reliability, as the first region is not limited by the bending direction.

Description

[Technical field]

[0001] At least one embodiment of the present disclosure relates to a touch panel, a touch display screen, and a display device. [Background technology]

[0002] With the development of display technology, smart terminal devices such as mobile phones, tablet computers, and notebook computers are becoming larger and larger in size. Although they are easy to use, they are very inconvenient in terms of handling and carrying because the screen is too large. Therefore, research on bending devices, folding devices, and even winding devices has become more active. Folding of display devices includes folding of display screens and folding of touch panels. At present, organic light-emitting diode (OLED) display screens are developing rapidly, and folding of display screens can be realized to a certain extent, and corresponding prototypes of some enterprises have appeared. Summary of the Invention [Means for solving the problem]

[0003] At least one embodiment of the present disclosure relates to a touch panel, a touch display screen, and a display device.

[0004] At least one embodiment of the present disclosure provides a touch panel, comprising a first region and a second region, the first region being foldable, the first region comprising a plurality of first touch patterns arranged in an array along a first direction and a second direction, the plurality of first touch patterns being in the same layer, adjacent first touch patterns being insulated from each other, the first direction and the second direction intersecting, and the second region being connected to the first region.

[0005] In a touch panel according to one or more embodiments of the present disclosure, a first touch pattern in the same column includes a plurality of first electrodes insulated from each other, and another adjacent first touch pattern includes a plurality of second electrodes located in odd rows and a plurality of third electrodes located in even rows, the plurality of second electrodes are electrically connected to each other, the plurality of third electrodes are electrically connected to each other, and the plurality of second electrodes and the plurality of third electrodes are insulated from each other.

[0006] In a touch panel according to one or more embodiments of the present disclosure, the touch panel further includes a plurality of first leads, a plurality of second leads, and a plurality of third leads, wherein each of the plurality of first electrodes is connected to one of the plurality of first leads, adjacent second electrodes of a first touch pattern in a same column are connected via one of the plurality of second leads, adjacent third electrodes of the first touch pattern in the same column are connected via one of the plurality of third leads, and the second leads and the third leads are separately provided on both sides of the first touch pattern in the same column.

[0007] In the touch panel according to one or more embodiments of the present disclosure, the first lead, the second lead and the third lead extend in the same direction as the bending axis of the first region.

[0008] In one or more embodiments of the present disclosure, the touch panel further includes a plurality of conductive wires, the plurality of first touch patterns are arranged insulated from each other, each of the plurality of first touch patterns is connected to one of the plurality of conductive wires, and the extension direction of the conductive wires is parallel to the bending axis direction of the first region.

[0009] In a touch panel according to one or more embodiments of the present disclosure, the second region includes at least one sub-region, the sub-region includes a plurality of first touch groups and a plurality of second touch groups, the plurality of first touch groups and the plurality of second touch groups are insulated from and intersect with each other, each of the plurality of first touch groups includes a plurality of second touch patterns, and each of the plurality of second touch groups includes a plurality of third touch patterns.

[0010] In the touch panel according to one or more embodiments of the present disclosure, the first touch pattern is a pattern in which at least one of the second touch pattern and the third touch pattern is rotated by a first angle.

[0011] In the touch panel according to one or more embodiments of the present disclosure, the first angle includes 45 degrees.

[0012] In a touch panel according to one or more embodiments of the present disclosure, the plurality of second touch patterns and the plurality of third touch patterns are located on the same layer, the plurality of second touch patterns are directly connected to each other, and adjacent third touch patterns are connected via jumper wires.

[0013] In a touch panel according to one or more embodiments of the present disclosure, the touch panel further includes a base substrate, the jumper wire and the plurality of second touch patterns are located on the base substrate, and an orthogonal projection of the jumper wire on the base substrate partially overlaps with an orthogonal projection of one of the plurality of second touch patterns on the base substrate.

[0014] In the touch panel according to one or more embodiments of the present disclosure, the crossover wire and the plurality of first touch patterns are located in the same layer.

[0015] In a touch panel according to one or more embodiments of the present disclosure, the plurality of first touch patterns, the plurality of second touch patterns, and the plurality of third touch patterns are located on the same layer, or the plurality of first touch patterns and the jumper wire are located on the same layer.

[0016] In the touch panel according to one or more embodiments of the present disclosure, at least one of each of the plurality of first touch patterns, each of the plurality of second touch patterns, and each of the plurality of third touch patterns is a mesh structure.

[0017] In a touch panel according to one or more embodiments of the present disclosure, the at least one sub-region includes a first sub-region and a second sub-region, and the first region is located between the first sub-region and the second sub-region.

[0018] In a touch panel according to one or more embodiments of the present disclosure, the plurality of first touch groups and the plurality of second touch groups located in the first sub-region and the plurality of first touch groups and the plurality of second touch groups located in the second sub-region are insulated from each other.

[0019] In a touch panel according to one or more embodiments of the present disclosure, the touch panel further includes a plurality of first signal lines, a plurality of second signal lines, a plurality of third signal lines, a plurality of fourth signal lines, a first touch IC and a second touch IC, wherein the plurality of first touch groups located in the first sub-region are each connected to the first touch IC via the plurality of first signal lines, the plurality of second touch groups located in the first sub-region are each connected to the first touch IC via the plurality of second signal lines, the plurality of first touch groups located in the second sub-region are each connected to the second touch IC via the plurality of third signal lines, and the plurality of second touch groups located in the second sub-region are each connected to the second touch IC via the plurality of fourth signal lines.

[0020] In one or more embodiments of the present disclosure, the touch panel further includes a plurality of fifth signal lines, and the plurality of first touch patterns are respectively connected to the second touch IC via the plurality of fifth signal lines.

[0021] At least one embodiment of the present disclosure further provides a touch display screen, including any of the above touch panels, wherein the first area further includes a plurality of first display pixels and a non-display area located between adjacent first display pixels, each of the plurality of first touch patterns includes a plurality of first conductive lines connected to each other, and orthogonal projections of the plurality of first conductive lines on the base substrate are located in the non-display area.

[0022] At least one embodiment of the present disclosure further provides a display device including any one of the touch panels described above.

[0023] At least one embodiment of the present disclosure further provides a display device including any of the above touch display screens. [Brief description of the drawings]

[0024] In order to more clearly explain the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments are briefly described below. It is obvious that the drawings described below are only related to some embodiments of the present disclosure and do not limit the present disclosure.

[0025] [Figure 1] FIG. 1 is a schematic diagram of a foldable touch panel. [Figure 2A] FIG. 2A is a schematic top view of a touch panel according to an embodiment of the present disclosure. [Figure 2B] FIG. 2B is a schematic top view of a touch panel according to an embodiment of the present disclosure. [Figure 3A] FIG. 3A is a schematic top view of a touch panel according to an embodiment of the present disclosure. [Figure 3B] FIG. 3B is a schematic diagram of a touch panel according to another embodiment of the present disclosure. [Figure 3C]FIG. 3C is a schematic diagram of a touch panel according to an embodiment of the present disclosure. [Figure 4] FIG. 4 is a schematic diagram of adjacent second touch patterns, a connection line connecting the adjacent second touch patterns, adjacent third touch patterns, and a jumper line connecting the adjacent third touch patterns in a touch panel according to one embodiment of the present disclosure. [Figure 5A] FIG. 5A is a schematic diagram of a plurality of first touch patterns arranged in an array in a first region of a touch panel in accordance with an embodiment of the present disclosure. [Figure 5B] FIG. 5B is a schematic diagram of a plurality of first touch patterns arranged in an array in a first region of a touch panel according to another embodiment of the present disclosure. [Figure 6A] FIG. 6A is a schematic diagram of one first touch pattern in a first region of a touch panel in accordance with an embodiment of the present disclosure. [Figure 6B] FIG. 6B is a schematic diagram of one first touch pattern in a first region of a touch panel according to another embodiment of the present disclosure. [Figure 7A] FIG. 7A is a schematic diagram of a touch display screen according to one embodiment of the present disclosure. [Figure 7B] FIG. 7B is a schematic diagram of a plurality of first conductive lines and first display pixels of a first touch pattern in a touch display screen according to an embodiment of the present disclosure. [Figure 7C] FIG. 7C is a schematic diagram of the arrangement of a plurality of second conductive lines and second display pixels of a second touch pattern / third touch pattern in a touch display screen according to an embodiment of the present disclosure. [Figure 8] FIG. 8 is a schematic diagram of a stacked structure of a non-folding area of ​​a touch display panel according to an embodiment of the present disclosure. [Figure 9] FIG. 9 is a schematic diagram of a layered structure of a foldable region of a touch display panel according to an embodiment of the present disclosure. [Figure 10] FIG. 10 is a schematic diagram of a continuous lamination structure of foldable and non-foldable regions of a touch display panel according to one embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] In order to further clarify the objectives, technical solutions and advantages of the embodiments of the present disclosure, the technical solutions of the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings of the embodiments of the present disclosure. It is obvious that the described embodiments are only some embodiments of the present disclosure, and not all embodiments. Based on the described embodiments of the present disclosure, all other embodiments that a person skilled in the art can obtain without requiring creative labor shall belong to the protection scope of the present disclosure.

[0027] Unless otherwise defined, technical or scientific terms used in this disclosure have ordinary meanings that can be understood by those skilled in the art. The terms "first", "second" and similar terms used in this disclosure do not indicate order, quantity or importance, but are merely used to distinguish different components. Similarly, similar terms such as "comprise" or "comprises" mean that the element or member described before "comprise" or "comprises" includes the element or member listed after "comprise" or "comprises" and its equivalents, but does not exclude other elements or members. Similar terms such as "connect" or "couple" are not limited to physical or mechanical connections, but may include electrical connections, whether directly or indirectly connected. "Top", "bottom", "left", "right", etc. only indicate relative positional relationships, and when the absolute position of the described object is changed, the relative positional relationships may change correspondingly.

[0028] The inventors found that in a touch display device, the touch layer / touch structure is usually a film layer away from the center of an OLED touch display device, and when the touch display device is a foldable device, the bending radius of the touch layer / touch structure is large and the bending resistance is poor, and when folded multiple times, creases are likely to occur or touch failures are likely to occur, which will have a negative impact on the normal use of the touch display device.

[0029] FIG. 1 is a schematic diagram of a foldable touch panel. As shown in FIG. 1, the touch panel includes a non-foldable region 11 and a foldable region 12. A touch structure is provided in the non-foldable region 11 and the foldable region 12. The non-foldable region 11 includes a first region 111 and a second region 112, where the first region 111 and the second region 112 are both flat regions, and the foldable region 12 is located between the first region 111 and the second region 112. The touch panel can be in an unfolded state and a folded state, and the touch panel shown in FIG. 1 is in a folded state, and when the touch panel is in a folded state, the foldable region 12 is in a folded state and has a curved structure. When the touch panel is in an unfolded state, the foldable region 12 is in a planar state and has a planar structure. In the process of repeatedly folding and bending the touch panel, the touch structure located in the foldable region 12 is easily peeled off or broken, resulting in touch failure.

[0030] At least one embodiment of the present disclosure provides a touch panel, in which the touch structure of the foldable area is not limited to the folding direction, which can improve the folding resistance of the touch panel, enhance the touch reliability of the touch panel, and extend the service life of the touch panel.

[0031] 2A is a schematic top view of a touch panel according to an embodiment of the present disclosure. As shown in FIG 2A, the touch panel includes a first region 21 and a second region 22. The first region 21 is foldable, and the touch panel can be in an unfolded state and a folded state.

[0032] For example, the first region 21 is in a flat state when the touch panel is in an unfolded state, and in a folded state when the touch panel is in a folded state. The touch panel includes a touch structure, and the touch structure of the touch panel is divided into a touch structure located in the first region 21 and a touch structure located in the second region 22.

[0033] As shown in Fig. 2A, the second region 22 includes a first sub-region 221 and a second sub-region 222, and of course, the number of sub-regions included in the second region 22 is not limited to that shown in Fig. 2A. In other embodiments of the present disclosure, the second region 22 may include one or more sub-regions. That is, in the embodiments of the present disclosure, the second region 22 includes at least one sub-region.

[0034] 2A, the second region 22 and the first region 21 are connected. For example, the second region 22 is a non-folded region. When the second region 22 includes a first sub-region 221 and a second sub-region 222, the first sub-region 221 and the second sub-region 222 are separately provided on both sides of the first region 21. That is, the first region 21 is located between the first sub-region 221 and the second sub-region 222.

[0035] 2A shows a schematic top view of the touch panel in an unfolded state. When the touch panel is in an unfolded state, the first region has a flat shape. FIG. 2A also shows a folding axis 101 of the first region. The folding axis 101 is an axis around which the touch panel is folded, and the axis around which the touch panel is folded can be referred to as the folding axis 101 regardless of whether the touch panel is in an unfolded state or a folded state.

[0036] FIG. 2B is a schematic top view of a touch panel according to an embodiment of the present disclosure. FIG. 2B shows a plurality of first touch electrodes 201 and a plurality of second touch electrodes 202 located in a first sub-region 221, where the plurality of first touch electrodes 201 and the plurality of second touch electrodes 202 cross each other and are insulated from each other. For example, an insulating layer may be provided between the plurality of first touch electrodes 201 and the plurality of second touch electrodes 202. For example, the plurality of first touch electrodes 201 are parallel to each other, and the plurality of second touch electrodes 202 are parallel to each other. The touch structure of the second sub-region 222 may refer to the touch structure of the first sub-region 221. Of course, the embodiment of the present disclosure takes the touch structures of the first sub-region 221 and the second sub-region 222 shown in FIG. 2B as an example, but is not limited thereto, and the touch structures of the second region, for example, the first sub-region 221 and the second sub-region 222, may be provided as required. For example, the first touch electrode 201 may be referred to as a first touch group, and the second touch electrode 202 may be referred to as a second touch group.

[0037] FIG. 3A is a schematic top view of a touch panel according to an embodiment of the present disclosure. As shown in FIG. 3A, in order to prevent the first region 21 from being restricted by the bending direction, the first region 21 includes a plurality of first touch patterns 121 arranged in an array along a first direction D1 and a second direction D2. The plurality of first touch patterns 121 are in the same layer, and adjacent first touch patterns 121 are insulated from each other. For example, when the touch panel is in an unfolded state, the first region 21 includes a plurality of first touch patterns 121 arranged in an array along the first direction D1 and the second direction D2. The first direction D1 and the second direction D2 intersect. For example, the first direction D1 is perpendicular to the second direction D2, but is not limited thereto. For example, the first direction D1 is the direction of the bending axis 101 of the first region 21, and the second direction D2 is the direction intersecting the bending axis 101 when the touch panel is in an unfolded state. For example, when the touch panel is in the unfolded state, the second direction D2 is a direction perpendicular to the folding axis 101. For example, when the touch panel is in the unfolded state, the first region 21 is flat.

[0038] In at least one embodiment of the present disclosure, the touch panel provides touch structures in different regions and provides a plurality of first touch patterns 121 arranged in an array in the first bendable region, so that the first region 21 of the touch panel is not limited by the bending direction, and there is no requirement or restriction on the extension direction of the first touch patterns 121. The plurality of first touch patterns 121 may be provided in the same layer, thereby realizing a single-layer pattern touch in the bendable region, reducing the film layer stress, reducing the peeling or breaking of the touch structure in the bendable region, effectively protecting the touch panel from being damaged when bent, reducing touch failures, and improving touch reliability.

[0039] 3A , in one or more embodiments of the present disclosure, the first sub-region 221 includes a plurality of first touch groups 131 and a plurality of second touch groups 132. The plurality of first touch groups 131 and the plurality of second touch groups 132 are insulated from each other and arranged crosswise. Each of the plurality of first touch groups 131 includes a plurality of second touch patterns 122, and each of the plurality of second touch groups 132 includes a plurality of third touch patterns 123.

[0040] As shown in FIG. 3A, in one or more embodiments of the present disclosure, the plurality of second touch patterns 122 and the plurality of third touch patterns 123 are located in the same layer. For example, the plurality of second touch patterns 122 and the plurality of third touch patterns 123 are formed in the same patterning process using the same film layer. For further example, the plurality of first touch patterns 121, the plurality of second touch patterns 122, and the plurality of third touch patterns 123 are located in the same layer and formed in the same patterning process using the same film layer, but are not limited thereto. For example, as shown in FIG. 3A, adjacent second touch patterns 122 are directly connected via a connecting line 01, and adjacent third touch patterns 123 are connected via a crossover line 02. In one embodiment, the connecting line 01, the plurality of first touch patterns 121, the plurality of second touch patterns 122, and the plurality of third touch patterns 123 are located in the same layer and formed in the same patterning process using the same film layer. In another embodiment, the connecting line 01, the plurality of second touch patterns 122, and the plurality of third touch patterns 123 are located in the same layer and are formed in the same patterning process using the same film layer, while the plurality of first touch patterns 121 and the jumper 02 are located in the same layer and are formed in the same patterning process using the same film layer. When the jumper is used, the touch structure of the second region is a two-layer structure, not a single-layer structure.

[0041] As shown in FIG. 3A, in one or more embodiments of the present disclosure, the touch panel further includes a base substrate 100, which includes a first region 21 and a second region 22. The first region 21 is foldable, and the first region 21 is in a flat state when the touch panel is in an unfolded state, and is in a folded state when the touch panel is in a folded state. The second region 22 includes a first sub-region 221 and a second sub-region 222, and the first sub-region 221 includes a plurality of first touch groups 131 and a plurality of second touch groups 132. The plurality of first touch groups 131 and the plurality of second touch groups 132 are located on the base substrate 100. Each of the plurality of first touch groups 131 includes a plurality of second touch patterns 122, and each of the plurality of second touch groups 132 includes a plurality of third touch patterns 123. Adjacent second touch patterns 122 are directly connected via a connection line 01, and adjacent third touch patterns 123 are connected via a crossover line 02. The touch structure of the second sub-region 222 can refer to the touch structure of the first sub-region 221. As shown in FIG. 3A, the crossover line 02 and the connection line 01 cross each other. The orthogonal projection of the crossover line 02 and one of the plurality of second touch patterns 122 on the base substrate 100 does not overlap, but is not limited thereto. For example, the base substrate 100 includes a flexible substrate. For example, the material of the base substrate 100 includes polyimide (PI).

[0042] For example, the first touch pattern 121 shown in FIG. 3A may be provided as a mesh structure, so that the mesh of the first touch pattern 121 can be avoided from the region where the pixels are located, improving the aperture ratio, reducing peeling or breaking of the touch structure in the bendable region, effectively protecting the touch panel from damage when bending, improving the bending resistance of the touch structure in the first region, and enhancing the touch reliability. For example, the first touch pattern 121 may be provided as a mesh structure including a plurality of first conductive lines 601 (see FIG. 6A) crossing each other. In addition, the first touch pattern 121 using the mesh structure is advantageous in that the first region of the touch panel is not restricted in the bending direction, reducing peeling or breaking of the touch structure in the first region, and enhancing the touch reliability.

[0043] As shown in FIG. 3A , in one or more embodiments of the present disclosure, the multiple first touch groups 131 and the multiple second touch groups 132 located in the first sub-region 221 and the multiple first touch groups 131 and the multiple second touch groups 132 located in the second sub-region 222 are insulated from each other for easy connection to different touch integrated circuits (ICs).

[0044] 3B is a schematic diagram of a touch panel according to another embodiment of the present disclosure. As shown in FIG. 3B, the touch panel further includes a plurality of first signal lines S1, a plurality of second signal lines S2, a plurality of third signal lines S3, a plurality of fourth signal lines S4, a first touch IC 231 and a second touch IC 232. The plurality of first touch groups 131 located in the first sub-region 221 are respectively connected to the first touch IC 231 via the plurality of first signal lines S1, the plurality of second touch groups 132 are respectively connected to the first touch IC 231 via the plurality of second signal lines S2, the plurality of first touch groups 131 located in the second sub-region 222 are respectively connected to the second touch IC 232 via the plurality of third signal lines S3, and the plurality of second touch groups 132 are respectively connected to the second touch IC 232 via the plurality of fourth signal lines S4.

[0045] As shown in FIG. 3B, in one or more embodiments of the present disclosure, the touch panel further includes a plurality of fifth signal lines S5, and the plurality of first touch patterns 121 are respectively connected to the second touch IC 232 via the plurality of fifth signal lines S5.

[0046] For example, when the touch panel is in a folded state, the first sub-region 221 is the normal display area and touch is driven by the first touch IC 231, and when the touch panel is in an unfolded state, the entire screen is the normal display area and touch on the entire screen is driven by both the first touch IC 231 and the second touch IC 232.

[0047] Of course, the installation manner of the touch IC is not limited to that shown in Fig. 3B, and the touch IC can be installed as required. For example, the first touch groups 131 and the second touch groups 132 located in the first sub-region 221 are connected to one touch IC, the first touch groups 131 and the second touch groups 132 located in the second sub-region 222 are connected to one touch IC, and the first touch patterns 121 are connected to one touch IC.

[0048] For clarity of illustration, FIG. 3B does not show the specific connection manner between all touch patterns or touch groups and touch ICs. Those skilled in the art can understand the connection manner based on the description of the embodiments of the present disclosure. For example, each touch IC includes multiple pins and is respectively connected to the touch structure of the first region 21 or the second region 22. For example, two elements described as being isolated from each other in the embodiments of the present disclosure are also isolated from each other when connected to the same touch IC at the same time, and respectively apply signals or respectively feedback signals.

[0049] 3C is a schematic diagram of a touch panel according to an embodiment of the present disclosure. As shown in FIG. 3C, the touch panel is in a folded state. As shown in FIG. 3C, when the touch panel is in a folded state, the first sub-region 221 and the second sub-region 222 are in a flat state, but the first region 21 is in a folded state. However, the embodiment of the present disclosure is not limited thereto. For example, when the touch panel is in a folded state, the first sub-region 221 and the second sub-region 222 may be in a non-flat state.

[0050] 4 is a schematic diagram of adjacent second touch patterns, a connection line connecting the adjacent second touch patterns, adjacent third touch patterns, and a crossover line connecting the adjacent third touch patterns in a touch panel according to an embodiment of the present disclosure. As shown in FIG. 4, each sub-area of ​​the second area of ​​the touch panel includes a plurality of first touch groups 141 and a plurality of second touch groups 142. The plurality of first touch groups 141 and the plurality of second touch groups 142 are located on a base substrate 100. Each of the plurality of first touch groups 141 includes a plurality of second touch patterns 152, and each of the plurality of second touch groups 142 includes a plurality of third touch patterns 153. Adjacent second touch patterns 152 are directly connected through a connection line 03, and adjacent third touch patterns 153 are connected through a crossover line 04. As shown in FIG. 4, the third touch patterns 153 are connected to the corresponding crossover line 04 through a via V4. As shown in FIG. 4, in order to reduce parasitic capacitance and facilitate detection of the touch position, the orthogonal projection of the jumper 04 on the base substrate 100 and the orthogonal projection of one of the multiple second touch patterns 152 on the base substrate 100 partially overlap; for example, the orthogonal projection of the jumper 04 on the base substrate 100 and the orthogonal projection of the connecting line 03 on the base substrate 100 do not overlap.

[0051] As shown in FIG. 4, in one or more embodiments of the present disclosure, each of the plurality of second touch patterns 152 and each of the plurality of third touch patterns 153 are mesh structures. By setting the second touch pattern 152 and the third touch pattern 153 as a mesh structure, the mesh can be avoided from the area where the pixels are located, and the aperture ratio can be improved. When the first touch pattern 121, the second touch pattern 152, and the third touch pattern 153 are all set as a mesh structure, the first touch pattern 121 and the third touch pattern 153 can be formed with the same mask. In this case, the density of the first touch pattern 121 is the same as the density of the third touch pattern 153, so that the first touch pattern 121 and the third touch pattern 153 are simultaneously formed without changing the mask, but is not limited thereto. Of course, the density of the first touch pattern 121 may be different from the density of the third touch pattern 153, for example, the density of the first touch pattern 121 is greater than the density of the third touch pattern 153, for example, the density of the first touch pattern 121 is twice the density of the third touch pattern 153, so as not to reduce the touch accuracy of the first area.

[0052] Of course, in other embodiments of the present disclosure, touch patterns of different shapes can be formed using the same mask, and patterns of different densities can be formed in different positions using the same mask. The mask used can be manufactured according to the pattern to be formed.

[0053] As shown in Fig. 4, in one or more embodiments of the present disclosure, the connection wire 03 is also installed as a mesh structure. Note that in embodiments of the present disclosure, the connection wire 03 does not have to be a mesh structure. Although the crossover wire 04 in Fig. 4 has a non-mesh structure, in other embodiments of the present disclosure, the crossover wire 04 may be installed as a mesh structure.

[0054] The touch panel according to one or more embodiments of the present disclosure is configured in different regions, so that touch is realized by using a bridge-type mesh structure touch pattern in the non-foldable region, and by using a single-layer mesh structure touch pattern in the foldable region.

[0055] FIG. 5A is a schematic diagram of a plurality of first touch patterns arranged in an array in a first region of a touch panel according to an embodiment of the present disclosure. As shown in FIG. 5A, the first region of the touch panel (shown in FIG. 2A) includes a plurality of first touch patterns 51 and a plurality of conductive wires 52, the plurality of first touch patterns 51 are installed insulated from each other, each of the plurality of first touch patterns 51 is connected to one of the plurality of conductive wires 52, and the extension direction of the conductive wire 52 is parallel to the direction of the bending axis 101 (shown in FIG. 2A) of the first region. In this case, the plurality of first touch patterns 51 can be used as a self-capacitance electrode to realize detection of the touch position. Of course, in other embodiments of the present disclosure, the extension direction of the conductive wire 52 does not have to be parallel to the direction of the bending axis of the first region. For example, the extension direction of the conductive wire 52 is perpendicular to the direction of the bending axis of the first region.

[0056] 5A is a single-layer self-capacitance structure, for example, each first touch pattern 51 is applied with a driving signal and feedbacks the signal to realize touch position detection.

[0057] 5B is a schematic diagram of a plurality of first touch patterns arranged in an array in a first region in a touch panel according to another embodiment of the present disclosure. As shown in FIG. 5B, the first region 21 (shown in FIG. 2A) of the touch panel includes a plurality of first touch patterns 500, and the plurality of first touch patterns 500 are formed in a plurality of rows and a plurality of columns. The first touch pattern 500 in the same column (for example, the first touch pattern in the first column shown in FIG. 5B) includes a plurality of first electrodes 501 insulated from each other, and the first touch pattern 500 in another adjacent column (for example, the first touch pattern in the second column shown in FIG. 5B) includes a plurality of second electrodes 502 located in odd rows and a plurality of third electrodes 503 located in even rows, where the plurality of second electrodes 502 are electrically connected to each other, the plurality of third electrodes 503 are electrically connected to each other, and the plurality of second electrodes 502 and the plurality of third electrodes 503 are insulated from each other.

[0058] The touch structure of the first region shown in Figure 5B is a single-layer mutual capacitance structure, for example, but not limited to, the first touch pattern of the odd column is applied with a driving signal, and the first touch pattern of the even column is fed back with a signal to realize touch position detection.

[0059] In one or more embodiments of the present disclosure, as shown in FIG. 5B , the touch panel includes a plurality of first leads 511, a plurality of second leads 512, and a plurality of third leads 513, where each of the plurality of first electrodes 502 is connected to one of the plurality of first leads 511, adjacent second electrodes 502 of the first touch pattern 500 in the same column are connected via one of the plurality of second leads 512, adjacent third electrodes 503 of the first touch pattern 500 in the same column are connected via one of the plurality of third leads 513, and the second leads 512 and the third leads 513 are provided separately on both sides of the first touch pattern 500 in the same column.

[0060] In one or more embodiments of the present disclosure, as shown in FIG. 5B, the extension direction of the first lead 511, the second lead 512, and the third lead 513 is parallel to the direction of the bending axis 101 (shown in FIG. 2A) of the first region 21 (shown in FIG. 2A), but is not limited thereto. That is, the extension direction of the first lead 511, the second lead 512, and the third lead 513 is the same as the direction of the bending axis of the first region. In other embodiments, the extension direction of the first lead 511, the second lead 512, and the third lead 513 is not parallel to the direction of the bending axis 101 (shown in FIG. 2A) of the first region 21 (shown in FIG. 2A). For example, the extension direction of the first lead 511, the second lead 512, and the third lead 513 is perpendicular to the direction of the bending axis 101 (shown in FIG. 2A) of the first region 21 (shown in FIG. 2A).

[0061] 6A is a schematic diagram of a first touch pattern in a first region of a touch panel according to an embodiment of the present disclosure. As shown in FIG. 6A, a first touch pattern 61 has a mesh structure. The first touch pattern 61 includes a plurality of first conductive lines 601 connected to each other. The structure of the first touch pattern 121 in the embodiment of the present disclosure can refer to the structure of the first touch pattern 61.

[0062] As shown in FIG. 6A, in one or more embodiments of the present disclosure, the shape of the first touch pattern 61 is the same as, but not limited to, the shape of at least one of the second touch pattern 122 and the third touch pattern 123 located in the second region. The shapes of the first touch pattern 61, the second touch pattern 122, and the third touch pattern 123 may not be the same as each other. For example, the shape of the first touch pattern 61 located in the first region may not be the same, the shape of the second touch pattern 122 located in the second region may not be the same, and the shape of the third touch pattern 123 located in the second region may not be the same. For example, the shape of at least one of the second touch pattern 122 and the third touch pattern 123 includes, but is not limited to, a rectangle. In the embodiments of the present disclosure, the shapes of the first touch pattern 61, the second touch pattern 122, and the third touch pattern 123 can be determined as needed. Even when manufactured using the same mask, touch patterns of different shapes can be manufactured.

[0063] As shown in FIG. 6A, in combination with FIG. 3A, in one or more embodiments of the present disclosure, the first touch pattern 61 is a pattern in which at least one of the second touch pattern 122 and the third touch pattern 123 is rotated by a first angle. For example, the first angle includes, but is not limited to, 45 degrees. For example, the first touch pattern 61 is a pattern in which the second touch pattern 122 or the third touch pattern 123 is rotated by 45 degrees.

[0064] 6B is a schematic diagram of one first touch pattern in a first region of a touch panel according to another embodiment of the present disclosure. As shown in FIG. 6B, one first touch pattern 62 has a mesh structure. The first touch pattern 62 includes a plurality of first conductive lines 602 connected to each other. The structure of the first touch pattern 121 in the embodiment of the present disclosure can refer to the structure of the first touch pattern 62.

[0065] At least one embodiment of the present disclosure further provides a touch display screen including any of the touch panels described above.

[0066] 7A is a schematic diagram of a touch display screen according to an embodiment of the present disclosure. As shown in FIG. 7A, the first region 21 of the touch display screen further includes a plurality of first display pixels 631 and a non-display region (non-pixel region) 6310 located between adjacent first display pixels 631. As shown in FIG. 7A, the second region 22 of the touch display screen further includes a plurality of second display pixels 632 and a non-display region 6320 located between adjacent second display pixels 632.

[0067] 7B is a schematic diagram of the arrangement of a plurality of first conductive lines of a first touch pattern and a first display pixel in a touch display screen according to an embodiment of the present disclosure. As shown in FIGS. 7A and 7B, the first touch pattern 61 includes a plurality of first conductive lines 601 connected to each other, and the orthogonal projections of the plurality of first conductive lines 601 on the base substrate 100 (shown in FIG. 7A) are located in the non-display area 6310 to avoid the first touch pattern from affecting the light output effect of the touch display screen and not affecting the aperture ratio of the touch display screen. That is, the orthogonal projections of the plurality of first conductive lines 601 on the base substrate 100 do not overlap with the orthogonal projections of the plurality of first display pixels 631 on the base substrate 100 (shown in FIG. 7A).

[0068] 7C is a schematic diagram of the arrangement of a plurality of second conductive lines and a second display pixel of the second touch pattern / third touch pattern in a touch display screen according to an embodiment of the present disclosure. As shown in FIG. 7C, the second touch pattern 152 or the third touch pattern 153 includes a plurality of second conductive lines 154 connected to each other, and the orthogonal projection of the plurality of second conductive lines 154 on the base substrate is located in the non-display area 6320 to avoid affecting the light output effect. That is, the orthogonal projection of the plurality of second conductive lines 154 on the base substrate does not overlap with the orthogonal projection of the plurality of second display pixels 632 on the base substrate. Therefore, due to the non-overlapping arrangement of the mesh-shaped touch pattern and the display pixels, the arrangement of the touch structure does not affect the aperture ratio of the touch display screen.

[0069] To improve the aperture ratio of the display, the signal lines of the touch structure may be similarly located. For example, to obtain a high aperture ratio, the conductive line 52 of FIG. 5A may be located in the non-display area 6310. For example, to obtain a high aperture ratio, at least one of the first lead, the second lead, and the third lead of FIG. 5B may also be located in the non-display area 6310.

[0070] For example, adjacent first conductive lines 601 surround a closed region, and one of the plurality of first display pixels 631 is located within the closed region. For example, each of the plurality of first touch patterns includes a plurality of closed regions, and the plurality of closed regions includes closed regions with unequal areas. For example, but not limited to, the plurality of first conductive lines includes adjacent first conductive lines with unequal intervals. For example, the plurality of first conductive lines includes adjacent first conductive lines with equal intervals. The size of the closed region and the size of the intervals between adjacent first conductive lines can be determined according to the pixel size.

[0071] It should be noted that in the embodiments of the present disclosure, the area surrounded by adjacent conductive lines is not limited to being a closed area, for example, in other embodiments, the area surrounded by adjacent conductive lines is not a closed area, i.e., the area surrounded by adjacent conductive lines has an opening, as shown in FIG.

[0072] For example, the orthogonal projections of the second conductive lines 154 on the base substrate 100 and the orthogonal projections of the second display pixels 632 on the base substrate 100 do not overlap.

[0073] For example, but not limited to, a metal material may be used to form the first touch pattern 121, the second touch pattern 122, and the third touch pattern 123. For example, but not limited to, at least one of the first lead, the second lead, and the third lead may be made of a metal material.

[0074] FIG. 8 is a schematic diagram of a stacked structure of a non-folded region of a touch display panel according to an embodiment of the present disclosure. The non-folded region may be the second region 22 shown in FIG. 3A or FIG. 3B. As shown in FIG. 8, an OLED unit 702 and an encapsulation layer 703 are disposed on a base substrate 701, a barrier layer 704 is disposed on the encapsulation layer 703, a bridge layer 705 is disposed on the barrier layer 704, an insulating layer 706 is disposed on the bridge layer 705, a touch layer 707 is disposed on the insulating layer 706, and is a touch function layer, and a protective layer 708 is disposed on the touch layer 707. For example, the base substrate 701 is a flexible substrate, and the material of the base substrate 701 includes PI. For example, the bridge layer 705 may include a plurality of crossover lines, and the touch layer 707 may include, but is not limited to, a second touch pattern, a third touch pattern, and a connecting line 03. For example, the bridge layer 705 includes a plurality of crossover wires 02, the touch layer 707 includes a third touch pattern 123 and a connecting line 01, the touch layer 707 further includes a second touch pattern 122, not shown in Fig. 8, but can refer to Fig. 3A. Also for example, the bridge layer 705 includes a plurality of crossover wires 04, the touch layer 707 includes a third touch pattern 153 and a second touch pattern 152, the touch layer 707 further includes a connecting line 03, not shown in Fig. 8, but can refer to Fig. 4.

[0075] 9 is a schematic diagram of a stacked structure of a foldable region of a touch display panel according to an embodiment of the present disclosure. The foldable region may be the first region 21 shown in FIG. 3A or FIG. 3B. As shown in FIG. 9, an OLED unit 802 is provided on a base substrate 801, a TFE layer 803 is provided on the OLED unit 802, a barrier layer 804 is provided on the TFE layer 803, a touch layer 805 is provided on the barrier layer 804, and a protective layer 806 is provided on the touch layer 805. For example, the touch layer 805 includes a plurality of first touch patterns 121. For example, the base substrate 801 is a flexible substrate, and the material of the base substrate 801 includes PI. For example, the touch layer 805 is a metal mesh touch function layer.

[0076] FIG. 10 is a schematic diagram of a laminated structure of a foldable region and a non-foldable region of a touch display panel according to an embodiment of the present disclosure. The non-foldable region may be the second region 22 shown in FIG. 3A or FIG. 3B. The foldable region may be the first region 21 shown in FIG. 3A or FIG. 3B. As shown in FIG. 10, a bridge layer 902 is provided on a barrier layer 901, an insulating layer 903 is provided on the bridge layer 902, a touch layer 904 is provided on the insulating layer 903, and a protective layer 905 is provided on the touch layer 904. For example, the bridge layer 902 includes a plurality of crossover wires. For example, the first touch pattern 121 in the first region 21 (foldable region) may be manufactured by the bridge layer 902 or the touch layer 904. For example, the bridge layer 902 includes a plurality of crossover wires 02, the touch layer 904 includes a third touch pattern 123 and a connecting line 01, the touch layer 904 further includes a second touch pattern 122, not shown in Fig. 10, but can refer to Fig. 3A. Also, for example, the bridge layer 902 includes a plurality of crossover wires 04, the touch layer 904 includes a third touch pattern 153 and a second touch pattern 152, the touch layer 904 further includes a connecting line 03, not shown in Fig. 10, but can refer to Fig. 4.

[0077] At least one embodiment of the present disclosure further provides a display device including any of the above touch panels or any of the above touch display screens.

[0078] For example, the display device may include, but is not limited to, an OLED display device.

[0079] For example, in the embodiments of the present disclosure, the touch structure can be disposed above an encapsulation layer to form a touch display screen with an on-cell structure. The encapsulation layer can include a Thin Film Encapsulation (TFE) layer, and of course, when the display device is a liquid crystal display device, the touch display screen with an on-cell structure can also be formed.

[0080] For clarity, the thickness of layers or regions is exaggerated in the drawings for illustrating the embodiments of the present disclosure. When an element such as a layer, film, region, or substrate is described as being "on" or "under" another element, the element may be "directly" on or "under" the other element, or intermediate elements may be present.

[0081] In the embodiments of the present disclosure, the patterning or patterning process may include only a photoetching process, may include a photoetching process and an etching step, or may include other processes for forming a predetermined pattern, such as printing, inkjet, etc. The photoetching process includes steps such as film formation, exposure, and development, and refers to forming a pattern using a photoresist, a mask, an exposure machine, etc. The patterning process can be selected according to the structure to be formed in the embodiments of the present disclosure.

[0082] Where not inconsistent, features of the same and different embodiments of the present disclosure may be combined.

[0083] The above is merely an embodiment of the present disclosure, and the scope of protection of the present disclosure is not limited thereto, and any changes or replacements that can be easily thought of by those skilled in the art within the technical scope of the present disclosure are included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure is based on the scope of protection of the accompanying claims. [Explanation of symbols]

[0084] 01 Connection line 03 Connection line 12 Possible area 21 First area 22 Second area 51 First Touch Pattern 100 Base Board 111 First area 112 Second area 154 Second conductive wire 201 first touch electrode 202 second touch electrode 221 First Sub-area 222 Second Sub-area 500 1st touch pattern 511 1st Lead 512 2nd Lead 513 3rd Lead 601 First conductive wire 602 First conductive wire 631 1st display pixel 632 second display pixels 701 Base Board 702 OLED unit 703 Sealing layer 704 Barrier Layer 705 Bridge Layer 706 Insulating layer 707 Touch Layer 708 Protective layer 801 Base Board 802 OLED unit 803 TFE layer 804 Barrier layer 805 Touch Layer 806 Protective layer 901 Barrier layer 902 Bridge Layer 903 Insulation Layer 904 Touch Layer 905 Protective layer

Claims

1. A touch panel, a first region that is bendable and includes a plurality of first touch patterns arranged in an array along a first direction and a second direction, the plurality of first touch patterns being in the same layer, adjacent first touch patterns being insulated from each other, and the first direction and the second direction intersect in the first region; a second region connected to the first region, The second region includes at least one sub-region, and the sub-region includes a plurality of first touch groups and a plurality of second touch groups; The first touch groups and the second touch groups are insulated from each other and cross each other; Each of the first touch groups includes a plurality of second touch patterns, and each of the second touch groups includes a plurality of third touch patterns; the second touch patterns and the third touch patterns are located in the same layer, the second touch patterns are directly connected to each other, and adjacent third touch patterns are connected via jumper wires; The touch panel includes: The touch panel further includes a base substrate, the jumper and the plurality of second touch patterns are located on the base substrate, and an orthogonal projection of the jumper on the base substrate and an orthogonal projection of one of the plurality of second touch patterns on the base substrate partially overlap each other; adjacent second touch patterns are directly connected to each other by a connection line, and an orthogonal projection of the jumper line on the base substrate and an orthogonal projection of the connection line on the base substrate do not overlap; The first touch pattern in the same column includes a plurality of first electrodes insulated from each other; a first touch pattern in another adjacent column includes a plurality of second electrodes located in odd-numbered rows and a plurality of third electrodes located in even-numbered rows, the plurality of second electrodes are electrically connected to each other, the plurality of third electrodes are electrically connected to each other, and the plurality of second electrodes and the plurality of third electrodes are insulated from each other; The touch panel includes: The touch panel further includes a plurality of first leads, a plurality of second leads, and a plurality of third leads, each of the plurality of first electrodes being connected to one of the plurality of first leads, adjacent second electrodes of a first touch pattern in a same column being connected via one of the plurality of second leads, adjacent third electrodes of the first touch pattern in the same column being connected via one of the plurality of third leads, and the second leads and the third leads being separately provided on both sides of the first touch pattern in the same column; Two first leads connected to adjacent first electrodes of a first touch pattern in the same column are provided separately on both sides of the first touch pattern in the same column; A touch panel, wherein the extension direction of the first lead, the second lead and the third lead is the same as the direction of the bending axis of the first region, and the sub-regions of the first region and the second region are arranged in a direction perpendicular to the bending axis.

2. 2. The touch panel of claim 1, further comprising a plurality of conductive wires, the plurality of first touch patterns being insulated from each other, each of the plurality of first touch patterns being connected to one of the plurality of conductive wires, and the extension direction of the conductive wires being parallel to the direction of the bending axis of the first region.

3. The touch panel according to claim 1 , wherein the first touch pattern is a pattern in which at least one of the second touch pattern and the third touch pattern is rotated by a first angle.

4. The touch panel of claim 3 , wherein the first angle comprises 45 degrees.

5. The touch panel according to claim 1 , wherein the jumper wire and the first touch patterns are located in the same layer.

6. The touch panel according to any one of claims 1 to 5, wherein the plurality of first touch patterns, the plurality of second touch patterns, and the plurality of third touch patterns are located on the same layer, or the plurality of first touch patterns and the jumper wires are located on the same layer.

7. The touch panel of claim 1 , wherein at least one of the first touch patterns, the second touch patterns, and the third touch patterns has a mesh structure.

8. The touch panel of claim 1 , wherein the at least one sub-region includes a first sub-region and a second sub-region, and the first region is located between the first sub-region and the second sub-region.

9. 9. The touch panel of claim 8, wherein the first touch groups and the second touch groups located in the first sub-region and the first touch groups and the second touch groups located in the second sub-region are insulated from each other.

10. 10. The touch panel of claim 8, further comprising a plurality of first signal lines, a plurality of second signal lines, a plurality of third signal lines, a plurality of fourth signal lines, a first touch IC, and a second touch IC, wherein the plurality of first touch groups located in the first sub-region are each connected to the first touch IC via the plurality of first signal lines, the plurality of second touch groups located in the first sub-region are each connected to the first touch IC via the plurality of second signal lines, the plurality of first touch groups located in the second sub-region are each connected to the second touch IC via the plurality of third signal lines, and the plurality of second touch groups located in the second sub-region are each connected to the second touch IC via the plurality of fourth signal lines.

11. The touch panel of claim 10 , further comprising a plurality of fifth signal lines, wherein the plurality of first touch patterns are respectively connected to the second touch IC via the plurality of fifth signal lines.

12. The touch panel of any one of claims 1 to 11, wherein the first direction is a direction of a bending axis of a first region, and the second direction is a direction perpendicular to the bending axis when the touch panel is in an unfolded state.

13. The touch panel of any one of claims 1 to 6, wherein each of the plurality of second touch patterns (122, 152) and each of the plurality of third touch patterns (123, 153) has a mesh structure, the mesh structure has a first mesh wire and a second mesh wire that intersect with each other, the jumper wire (04) has a first jumper portion and a second jumper portion that intersect with each other, an extension direction of the first mesh wire is the same as an extension direction of the first jumper portion, and an extension direction of the second mesh wire is the same as an extension direction of the second jumper portion.

14. The touch panel of claim 1 , wherein a maximum size of the connection line is smaller than a maximum size of each of the plurality of second touch patterns.

15. The touch panel of any one of claims 1 to 14, wherein the plurality of second touch patterns and the connection lines are located in the same layer, and the jumper lines are located in another layer and are each connected to the adjacent third touch patterns via via holes.

16. A touch display screen comprising the touch panel according to any one of claims 1 to 15, A touch display screen, wherein the first area further includes a plurality of first display pixels and a non-display area located between adjacent first display pixels, each of the plurality of first touch patterns includes a plurality of first conductive lines connected to each other, and orthogonal projections of the plurality of first conductive lines on a base substrate are located in the non-display area.

17. A display device comprising the touch panel according to any one of claims 1 to 15.

18. 17. A display device comprising the touch display screen of claim 16.

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