Touch structure and display device

Abstract

A touch structure is provided. The touch structure includes a plurality of touch electrodes in a touch area and a plurality of touch signal lines in a peripheral area. Each of the plurality of touch signal lines includes a double-layer structure in a double-layer area and a single-layer structure in a single-layer area. The peripheral area includes a first sub-area, a second sub-area, a third sub-area, and a fourth sub-area located at different sides of the touch area, the first sub-area including a side area and one or more corner areas respectively located at corners of the touch structure. The double-layer area and the single-layer area are located in the first sub-area. A plurality of adjacent double-layer structures in the double-layer area are respectively connected to a plurality of adjacent single-layer structures in the single-layer area. At least two of the plurality of adjacent single-layer structures are respectively located in a first layer and a second layer. The touch structure further includes a touch insulating layer located between the first layer and the second layer.

Description

[0001] This invention is a divisional application of Chinese invention patent application number 202011408279.9. Technical Field

[0002] This invention relates to the field of display technology, and more particularly to a touch structure and display device. Background Technology

[0003] Various types of touch panels have been developed. Examples of touch panels include one-glass-solution (OGS) touch panels, on-cell touch panels, and in-cell touch panels. On-cell touch panels offer high touch accuracy. On-cell touch panels can be further divided into single-layer-on-cell (SLOC) touch panels and multi-layer-on-cell (MLOC) touch panels. In particular, multi-touch can be achieved in MLOC touch panels, which offer superior touch accuracy and blanking effects. Summary of the Invention

[0004] In one aspect, this disclosure provides a touch structure including a plurality of touch electrodes in a touch area and a plurality of touch signal lines in a peripheral area;

[0005] Each of the plurality of touch signal lines includes a double-layer structure in a double-layer region and a single-layer structure in a single-layer region. The peripheral region includes a first sub-region on a first side of the touch region, a second sub-region on a second side of the touch region, a third sub-region on a third side of the touch region, and a fourth sub-region on a fourth side of the touch region. The first sub-region includes a side region and one or more corner regions, and the one or more corner regions are respectively located at the corners of the touch structure.

[0006] The dual-layer region and the single-layer region are located in the first sub-region, and the first sub-region has a first shortest width along the direction from the touch area to the first sub-region, and the first shortest width is greater than the shortest width of at least one sub-region in the surrounding region other than the first sub-region.

[0007] The multiple adjacent double-layer structures in the double-layer region are respectively connected to the multiple adjacent single-layer structures in the single-layer region;

[0008] At least two of the plurality of adjacent single-layer structures are located in the first layer and the second layer, respectively; and

[0009] The touch structure also includes a touch insulating layer located between the first layer and the second layer.

[0010] Optionally, the transition position from the double-layer region to the single-layer region is at least partially located in the corner region.

[0011] Optionally, the dual-layer region is at least partially located in at least one of the second sub-region, the third sub-region, and the fourth sub-region.

[0012] Optionally, the single-layer region is located in the side region.

[0013] Optionally, the double-layered region is at least partially located in the corner region;

[0014] And / or, the single-layer region is at least partially located in the corner region.

[0015] Optionally, each double-layer structure includes a first portion in the first layer and a second portion in the second layer;

[0016] In the second layer, the first adjacent corresponding single-layer structure is connected to the corresponding second part of the first adjacent double-layer structure; and

[0017] The second adjacent corresponding single-layer structure in the first layer is connected to the corresponding first part of the second adjacent double-layer structure.

[0018] Optionally, the first portion and the second portion are connected via a connection through-hole extending through the touch insulation layer.

[0019] Optionally, the plurality of first double-layer structures of the plurality of touch signal lines are respectively clustered in the first region;

[0020] The plurality of first single-layer structures of the plurality of touch signal lines are respectively clustered in the second region;

[0021] The plurality of first double-layer structures are substantially parallel to each other and extend along a first direction respectively;

[0022] The plurality of first single-layer structures are substantially parallel to each other and extend along the second direction respectively;

[0023] At least two of the plurality of first single-layer structures are located in the first layer and the second layer, respectively; and

[0024] The first direction and the second direction are different from each other and intersect each other at an angle greater than zero.

[0025] Optionally, a plurality of connection points connecting the plurality of first double-layer structures and the plurality of first single-layer structures are arranged along a seventh direction; and

[0026] The second direction and the seventh direction intersect each other at an angle ranging from 6 to 15 degrees.

[0027] Optionally, the plurality of touch electrodes includes a plurality of first mesh electrodes arranged in a plurality of rows and a plurality of second mesh electrodes arranged in a plurality of columns; and

[0028] The plurality of first mesh electrodes and the plurality of second mesh electrodes are in the second layer.

[0029] Optionally, it also includes:

[0030] Multiple touch electrode bridges in the first layer; and

[0031] Through-holes extending through the touch insulation layer;

[0032] The plurality of touch electrode bridges extend through the through-hole to connect adjacent second mesh blocks in corresponding columns of the plurality of second mesh electrodes.

[0033] Optionally, the plurality of touch signal lines include:

[0034] Multiple first touch signal lines are respectively connected to the multiple first mesh electrodes;

[0035] Multiple second touch signal lines, each connected to a first terminal of the multiple second mesh electrodes; and

[0036] Multiple third touch signal lines are respectively connected to the second terminals of the multiple second mesh electrodes.

[0037] Optionally, at least two adjacent single-layer structures located in the first layer and the second layer are electrically connected to the touch electrodes in adjacent rows.

[0038] In another aspect, this disclosure provides a display device comprising: a display panel; a touch structure described herein or manufactured by the methods described herein; and an integrated circuit.

[0039] Optionally, the display panel includes: a plurality of light-emitting elements; an encapsulation layer on the plurality of light-emitting elements, wherein the encapsulation layer includes a first inorganic encapsulation layer, an organic encapsulation layer located on the side of the first inorganic encapsulation layer away from the plurality of light-emitting elements, a second inorganic encapsulation layer located on the side of the organic encapsulation layer away from the first inorganic encapsulation layer; and a buffer layer located on the side of the second inorganic encapsulation layer away from the organic encapsulation layer; wherein the touch insulating layer is located on the side of the buffer layer away from the second inorganic encapsulation layer. Attached Figure Description

[0040] The following figures are merely illustrative examples based on various disclosed embodiments and are not intended to limit the scope of the invention.

[0041] Figure 1A This is a schematic diagram illustrating the structure of a touch structure according to some embodiments of the present disclosure.

[0042] Figure 1B This is a schematic diagram illustrating the touch area and surrounding area in a touch structure according to some embodiments of the present disclosure.

[0043] Figure 2 This is a magnified view of a touch structure according to some embodiments of the present disclosure during the transition from the touch area to the surrounding area.

[0044] Figure 3A yes Figure 2 A further magnified view of the magnified area in the image.

[0045] Figure 3B It is along Figure 3A A cross-sectional view of line A-A' in the diagram.

[0046] Figure 3C It is along Figure 3A A cross-sectional view of line B-B' in the diagram.

[0047] Figure 3D It is along Figure 3A A cross-sectional view of the C-C' line in the diagram.

[0048] Figure 3E This is a cross-sectional view of a plurality of adjacent single-layer structures ASLS in a single-layer region according to some embodiments of the present disclosure.

[0049] Figure 3F This is a cross-sectional view of a plurality of adjacent single-layer structures ASLS in a single-layer region according to some embodiments of the present disclosure.

[0050] Figure 4 This is a magnified view of a touch structure according to some embodiments of the present disclosure during the transition from the touch area to the surrounding area.

[0051] Figure 5 yes Figure 4 A further magnified view of the first magnified area.

[0052] Figure 6 It is along Figure 5 A cross-sectional view of the D-D' line in the diagram.

[0053] Figure 7 yes Figure 4 A further magnified view of the second magnified area.

[0054] Figure 8 yes Figure 7 A further magnified view of the third magnified area.

[0055] Figure 9 It is along Figure 8 A cross-sectional view of the E-E' line in the diagram.

[0056] Figure 10 It is along Figure 8 A cross-sectional view of line F-F' in the diagram.

[0057] Figure 11 This is a magnified view of a touch structure according to some embodiments of the present disclosure during the transition from the touch area to the surrounding area.

[0058] Figure 12 yes Figure 11 A further magnified view.

[0059] Figure 13 This shows a corresponding one of a plurality of third single-layer structures, which connects a corresponding one of a plurality of third double-layer structures and a corresponding one of a plurality of fourth double-layer structures.

[0060] Figure 14 It is along Figure 12 A cross-sectional view of the G-G' line in the diagram.

[0061] Figure 15 It is along Figure 1A A cross-sectional view of the H-H' line in the diagram.

[0062] Figure 16 It is along Figure 1A A cross-sectional view of line I-I' in the diagram.

[0063] Figure 17 This is a schematic diagram illustrating a touch structure according to some embodiments of the present disclosure.

[0064] Figure 18A This is a schematic diagram illustrating a window area according to some embodiments of the present disclosure.

[0065] Figure 18B This is an enlarged view of the touch structure surrounding the window area according to some embodiments of the present disclosure.

[0066] Figure 18C This is a further enlarged view of the touch structure surrounding the window area according to some embodiments of the present disclosure.

[0067] Figure 19 This is a cross-sectional view of a display panel according to some embodiments of the present disclosure.

[0068] Figure 20 This is a schematic diagram illustrating the display area and surrounding area in a display device according to some embodiments of the present disclosure. Detailed Implementation

[0069] This disclosure will now be described in more detail with reference to the following embodiments. It should be noted that the following description of some embodiments presented herein is for illustrative and descriptive purposes only. It is not exhaustive or limited to the precise forms disclosed.

[0070] This disclosure provides, in particular, a touch structure and display device that substantially eliminates one or more problems caused by the limitations and disadvantages of the prior art. In one aspect, this disclosure provides a touch structure. In some embodiments, the touch structure includes a plurality of touch electrodes in a touch region and a plurality of touch signal lines in a peripheral region. Each of the plurality of touch signal lines includes a double-layer structure in a double-layer region and a single-layer structure in a single-layer region. Optionally, the double-layer region and the single-layer region in the peripheral region are connected to a first sub-region of an integrated circuit, the first sub-region having a first shortest width along a direction from the touch region to the first sub-region, the first shortest width being greater than the shortest width of at least one sub-region in the peripheral region other than the first sub-region. Optionally, a plurality of adjacent double-layer structures in the double-layer region are respectively connected to a plurality of adjacent single-layer structures in the single-layer region. Optionally, at least two of the plurality of adjacent single-layer structures are respectively located in a first layer and a second layer. Optionally, the touch structure further includes a touch insulating layer located between the first layer and the second layer.

[0071] Figure 1A This is a schematic diagram illustrating the structure of a touch structure according to some embodiments of the present disclosure. (Refer to...) Figure 1AIn some embodiments, the touch structure includes a plurality of first mesh electrodes TE1 arranged in multiple rows and a plurality of second mesh electrodes TE2 arranged in multiple columns. Adjacent rows are isolated from each other. Adjacent columns are isolated from each other. Optionally, the touch structure is a mutual capacitance touch structure. Optionally, the plurality of first mesh electrodes TE1 are multiple touch sensing electrodes, and the plurality of second mesh electrodes TE2 are multiple touch scanning electrodes. Optionally, the plurality of first mesh electrodes TE1 are multiple touch scanning electrodes, and the plurality of second mesh electrodes TE2 are multiple touch sensing electrodes.

[0072] In some embodiments, the plurality of touch signal lines include a plurality of first touch signal lines SGL1 respectively connected to a plurality of first mesh electrodes TE1; a plurality of second touch signal lines SGL2 respectively connected to a plurality of second mesh electrodes TE2 at a first terminal T1; and a plurality of third touch signal lines SGL3 respectively connected to a plurality of second mesh electrodes TE2 at a second terminal T2. Optionally, a corresponding one of the plurality of first mesh electrodes TE1 is connected to a corresponding one of the plurality of first touch signal lines SGL1. Optionally, a corresponding one of the plurality of second mesh electrodes TE2 is connected to a corresponding one of the plurality of second touch signal lines SGL2 and also connected to a corresponding one of the plurality of third touch signal lines SGL3.

[0073] In some embodiments, each of the plurality of first mesh electrodes TE1 extends along a second direction DR2; and each of the plurality of second mesh electrodes TE2 extends along a first direction DR1. Optionally, the first direction DR1 and the second direction DR2 are two non-parallel directions, for example, the first direction DR1 and the second direction DR2 intersect each other. Optionally, the first direction DR1 and the second direction DR2 are perpendicular to each other. Optionally, the first direction DR1 and the second direction DR2 intersect each other at an angle other than 90 degrees.

[0074] In some embodiments, multiple touch electrodes (e.g., multiple first mesh electrodes TE1 and multiple second mesh electrodes TE2) are located in the touch area TCA, and multiple touch signal lines (e.g., multiple first touch signal lines SGL1, multiple second touch signal lines SGL2 and multiple third touch signal lines SGL3) are located in the peripheral area PA outside the touch area TCA.

[0075] Figure 1B This is a schematic diagram illustrating the touch area and surrounding area in a touch structure according to some embodiments of the present disclosure. (See also:) Figure 1BIn some embodiments, the peripheral region PA includes a first sub-region PA1 on a first side S1 of the touch region TCA, a second sub-region PA2 on a second side S2 of the touch region TCA, a third sub-region PA3 on a third side S3 of the touch region TCA, and a fourth sub-region PA4 on a fourth side S4 of the touch region TCA. Optionally, the first side S1 and the fourth side S4 are opposite to each other. Optionally, the second side S2 and the third side S3 are opposite to each other. Optionally, the first sub-region PA1 is a sub-region where a plurality of first touch signal lines SGL1, a plurality of second touch signal lines SGL2, and a plurality of third touch signal lines SGL3 are connected to an integrated circuit (e.g., an integrated touch circuit).

[0076] In some embodiments, the first sub-region PA1 includes a side region SR and one or more corner regions (e.g., a first corner region CR1 and a second corner region CR2). The one or more corner regions are located at the corners of the touch structure. The one or more corner regions connect the side region SR to one or more adjacent sub-regions of the peripheral region PA. For example, the first corner region CR1 connects the side region SR to the second sub-region PA2, and the second corner region CR2 connects the side region SR to the third sub-region PA3.

[0077] In some embodiments, the first sub-region PA1 has a first shortest width w1 along the direction from the touch area TCA to the first sub-region PA1. Optionally, the second sub-region PA2 has a second shortest width w2 along the direction from the touch area TCA to the second sub-region PA2. Optionally, the third sub-region PA3 has a third shortest width w3 along the direction from the touch area TCA to the third sub-region PA3. Optionally, the fourth sub-region PA4 has a fourth shortest width w4 along the direction from the touch area TCA to the fourth sub-region PA4. In some embodiments, the first shortest width w1 is greater than at least one of the other shortest widths, for example, greater than at least one of the second shortest width w2, the third shortest width w3, or the fourth shortest width w4. Optionally, the first shortest width w1 is greater than any of the other shortest widths, for example, greater than the second shortest width w2, greater than the third shortest width w3, and greater than the fourth shortest width w4.

[0078] Figure 2 This is a partially enlarged view of the touch structure according to some embodiments of the present disclosure during the transition from the touch area to the surrounding area. (Refer to...) Figure 2In some embodiments, the touch structure includes a plurality of touch signal lines. In some embodiments, each of the plurality of touch signal lines includes a dual-layer structure DLS in a dual-layer region DLR and a single-layer structure SLS in a single-layer region SLR. The dual-layer region DLR and the single-layer region SLR are located in the peripheral region of the touch structure. In some embodiments, the dual-layer region DLR and the single-layer region SLR are located in a first sub-region PA1.

[0079] In some embodiments, the touch structure includes a plurality of adjacent dual-layer structures and a plurality of adjacent single-layer structures. In some embodiments, at least two of the plurality of adjacent single-layer structures are respectively located in the first layer and the second layer. Figure 3A yes Figure 2 A further magnified view of the magnified area in the image. Figure 3B It is along Figure 3A A cross-sectional view of line A-A' in the diagram. Figure 3C It is along Figure 3A A cross-sectional view of line B-B' in the diagram. Figure 3D It is along Figure 3A A cross-sectional view of line C-C' in the diagram. (Refer to...) Figure 2 , Figures 3A to 3D In the dual-layer region DLR, multiple adjacent dual-layer structures ADLS are connected to multiple adjacent single-layer structures ASLS in the single-layer region SLR. (Reference) Figures 3A to 3D In some embodiments, at least two of the plurality of adjacent single-layer structures are respectively located in the first layer SL1 and the second layer SL2. Figures 3A to 3D In one example shown, multiple adjacent single-layer structure ASLSs alternately occur in the first layer SL1 and the second layer SL2. In the context of this disclosure, the multiple adjacent single-layer structure ASLSs are part of a touch signal line. For example, refer to... Figure 1A , Figure 2 , Figures 3A to 3D At least two adjacent single-layer structures in the first layer SL1 and the second layer SL2 are electrically connected to the touch electrodes in adjacent rows.

[0080] exist Figures 3A to 3C In one example shown, the touch structure includes a buffer layer BUF on a second inorganic encapsulation sublayer CVD2, which is a sublayer of an encapsulation layer for encapsulating light-emitting elements in a display device with a touch structure. In some embodiments, the touch structure further includes a first layer SL1 located on the side of the buffer layer BUF away from the second inorganic encapsulation sublayer CVD2, a touch insulating layer TI located on the side of the first layer SL1 away from the buffer layer BUF, a second layer SL2 located on the side of the touch insulating layer TI away from the first layer SL1, and a protective layer OC located on the side of the second layer SL2 away from the touch insulating layer TI.

[0081] In some embodiments, each dual-layer structure includes a first portion P1 in a first layer SL1 and a second portion P2 in a second layer SL2, such as Figures 3A to 3C As shown. Figure 3B As shown, in the second layer SL2, the first adjacent corresponding single-layer structure ASLS1 is connected to the corresponding second portion P2 of the first adjacent double-layer structure ADLS1. In the first layer SL1, the second adjacent corresponding single-layer structure ASLS2 is connected to the corresponding first portion P1 of the second adjacent double-layer structure ADLS2. Optionally, the first adjacent corresponding single-layer structure ASLS1 in the second layer SL2 is continuously connected to the corresponding second portion P2 of the first adjacent double-layer structure ADLS1, forming an integral structure. Optionally, the second adjacent corresponding single-layer structure ASLS2 in the first layer SL1 is continuously connected to the corresponding first portion P1 of the second adjacent double-layer structure ADLS2, forming an integral structure.

[0082] refer to Figure 2 and Figure 3D In some embodiments, at least two of a plurality of adjacent single-layer ASLS structures are located in the first layer SL1 and the second layer SL2, respectively. Figure 2 and Figure 3D In one example shown, multiple adjacent single-layer structures ASLS are alternately arranged in the first layer SL1 and the second layer SL2. The inventors of this disclosure have discovered that by having this structure, the spacing between multiple touch signal lines can be significantly reduced, allowing the display device with this touch structure to have a much narrower peripheral area. In one example, the width of the peripheral area from the display area to the edge of the display panel can be reduced from 1.36 mm to 1.076 mm. In another example, the distance between the display area and the signal lines farther from the display area can be reduced from 0.435 mm to 0.331 mm. Furthermore, the signal lines in the same layer (e.g., the single-layer structures in the first layer SL1) can be further spaced apart to avoid short circuits. By further spacing the single-layer structures in the same layer, the complexity involved in manufacturing the mask used to pattern the multiple signal lines is also reduced, and the etching process is less prone to defects.

[0083] For example, a first sub-region of the peripheral region having the aforementioned double-layer and single-layer regions has a first shortest width along the direction from the touch control region to the first sub-region. This first shortest width can be reduced from 1.36 mm to 1.076 mm. The reference value of 1.36 mm can be a reference first shortest width for the corresponding first sub-region of the peripheral region in a reference touch control structure that does not have the double-layer and single-layer regions of this disclosure. In one example, the touch signal lines of the reference touch control structure employ a double-layer structure throughout the peripheral region. By forming the touch signal lines with the complex structure discussed in this disclosure, the first shortest width in the first sub-region can be reduced compared to the touch signal lines in the reference touch control structure.

[0084] For example, a minimum spacing of 7.5 μm is typically required to avoid defects such as short circuits and etching defects. By alternating multiple adjacent monolayer structures ASLS in the first layer SL1 and the second layer SL2, the minimum spacing can be significantly reduced to 5.6 μm or less. Furthermore, signal lines in the same layer can be spaced apart, for example, by 7.5 μm to 11.2 μm or more.

[0085] In some embodiments, each of the plurality of touch signal lines has a linewidth ranging from 2.5 μm to 4.5 μm, for example, 2.5 μm to 3.0 μm, 3.0 μm to 3.5 μm, 3.5 μm to 4.0 μm, or 4.0 μm to 4.5 μm. Optionally, each of the plurality of touch signal lines has a linewidth of 3.5 μm. In some embodiments, a plurality of adjacent single-layer structure ASLS have a linewidth ranging from 2.5 μm to 4.5 μm (in Figure 3D The linewidth (referred to as lw) is, for example, 2.5 μm to 3.0 μm, 3.0 μm to 3.5 μm, 3.5 μm to 4.0 μm, or 4.0 μm to 4.5 μm. Optionally, multiple adjacent single-layer structured ASLS have a linewidth of 3.5 μm. In some embodiments, multiple adjacent double-layer structured ADLS have a linewidth in the range of 2.5 μm to 4.5 μm, for example, 2.5 μm to 3.0 μm, 3.0 μm to 3.5 μm, 3.5 μm to 4.0 μm, or 4.0 μm to 4.5 μm. Optionally, multiple adjacent double-layer structured ADLS have a linewidth of 3.5 μm.

[0086] refer to Figure 3DIn some embodiments, the orthographic projections of adjacent monolayer structures on the substrate are spaced apart by a minimum distance d, which is in the range of 1.1 μm to 3.1 μm, for example, 1.1 μm to 1.6 μm, 1.6 μm to 2.1 μm, or 2.6 μm to 3.1 μm. Optionally, the orthographic projections of adjacent monolayer structures on the substrate are spaced apart by a minimum distance of 2.1 μm. In some embodiments, the orthographic projections of adjacent monolayer structures in the first layer SL1 are spaced apart by a minimum distance d1, which is in the range of 4.7 μm to 10.7 μm, for example, 4.7 μm to 5.7 μm, 5.7 μm to 6.7 μm, 6.7 μm to 7.7 μm, 7.7 μm to 8.7 μm, 8.7 μm to 9.7 μm, or 9.7 μm to 10.7 μm. Optionally, the orthographic projections of adjacent monolayer structures in the first layer SL1 are spaced apart by a minimum distance of 7.7 μm on the substrate. In some embodiments, the orthographic projections of adjacent monolayer structures in the second layer SL2 are spaced apart by a minimum distance d2, which is in the range of 4.7 μm to 10.7 μm, such as 4.7 μm to 5.7 μm, 5.7 μm to 6.7 μm, 6.7 μm to 7.7 μm, 7.7 μm to 8.7 μm, 8.7 μm to 9.7 μm, or 9.7 μm to 10.7 μm. Optionally, the orthographic projections of adjacent monolayer structures in the second layer SL2 are spaced apart by a minimum distance of 7.7 μm on the substrate.

[0087] refer to Figure 3D Optionally, the orthographic projections of adjacent single-layer structures in the first layer SL1 and the second layer SL2 do not overlap.

[0088] Figure 3E This is a cross-sectional view of multiple adjacent single-layer structure ASLS in a single-layer region according to some embodiments of this disclosure. Reference Figure 3E In some embodiments, the orthographic projections of adjacent monolayer structures in a plurality of adjacent monolayer structures ASLS on the substrate are directly adjacent to each other.

[0089] Figure 3F This is a cross-sectional view of multiple adjacent single-layer structure ASLS in a single-layer region according to some embodiments of this disclosure. Reference Figure 3F In some embodiments, the orthographic projections of adjacent monolayer structures in a plurality of adjacent monolayer structures ASLS on the substrate at least partially overlap each other.

[0090] refer to Figures 3A to 3C In some embodiments, the first portion P1 and the second portion P2 of each double-layer structure are connected by a connection via cv extending through the touch insulating layer TI.

[0091] In some embodiments, the orthographic projections of adjacent bilayer structures onto the substrate are separated by a minimum distance d, which is in the range of 3.0 μm to 5.0 μm, such as 3.0 μm to 3.5 μm, 3.5 μm to 4.0 μm, 4.0 μm to 4.5 μm, or 4.5 μm to 5.0 μm. Optionally, the orthographic projections of adjacent bilayer structures onto the substrate are separated by a minimum distance of 4.0 μm.

[0092] Figure 4 This is a magnified view of a touch structure according to some embodiments of the present disclosure during the transition from the touch area to the surrounding area. Figure 5 for Figure 4 A further magnified view of the first magnified area. (Refer to...) Figure 4 and Figure 5 In some embodiments, a plurality of first double-layer structures MDLS1 of multiple touch signal lines are respectively clustered in a first region R1; and a plurality of first single-layer structures MSLS1 of multiple touch signal lines are respectively clustered in a second region R2. The plurality of first double-layer structures MDLS1 are respectively connected to the plurality of first single-layer structures MSLS1 (e.g., combined with...). Figure 2 , Figures 3A to 3B (Similarly discussed). Region R1 and Region R2 are directly adjacent to each other.

[0093] In some embodiments, a plurality of first double-layer structures MDLS1 and a plurality of first single-layer structures MSLS1 are portions of touch signal lines of the same type. In one example, a plurality of first double-layer structures MDLS1 and a plurality of first single-layer structures MSLS1 are portions of touch scan signal lines connected to touch scan electrodes. In another example, a plurality of first double-layer structures MDLS1 and a plurality of first single-layer structures MSLS1 are portions of touch sense signal lines connected to touch sense electrodes. In one example, a plurality of first double-layer structures MDLS1 and a plurality of first single-layer structures MSLS1 are portions of a plurality of first touch signal lines SGL1. The regions corresponding to the first region R1 and the second region R2 are in Figure 1A They are represented as R1' and R2'.

[0094] In some embodiments, a plurality of connection points CP3 connecting a plurality of first double-layer structures MDLS1 and a plurality of first single-layer structures MSLS1 are arranged along the seventh direction DR7. Optionally, the second direction DR2 and the seventh direction DR7 are two non-parallel directions, for example, the second direction DR2 and the seventh direction DR7 intersect each other. Optionally, the second direction DR2 and the seventh direction DR7 intersect each other at an angle other than 90 degrees. In some embodiments, the second direction DR2 and the seventh direction DR7 intersect each other at an angle in the range of 6 degrees to 15 degrees, for example, 6 degrees to 7 degrees, 7 degrees to 8 degrees, 8 degrees to 9 degrees, 9 degrees to 10 degrees, 10 degrees to 11 degrees, 11 degrees to 12 degrees, 12 degrees to 13 degrees, 13 degrees to 14 degrees, or 14 degrees to 15 degrees. Optionally, the second direction DR2 and the seventh direction DR7 intersect each other at an angle of 10.5 degrees.

[0095] Figure 6 For along Figure 5 A cross-sectional view of line D-D' in the diagram. (Reference) Figure 6 And as mentioned above Figures 3A to 3D Similarly, in some embodiments, in the second region R2, at least two of the plurality of first single-layer structures MSLS1 are respectively located in the first layer SL1 and the second layer SL2. In such... Figure 6 , Figures 3A to 3D In one example shown, in the second region R2, a plurality of first single-layer structures MSLS1 are alternately arranged in the first layer SL1 and the second layer SL2.

[0096] In some embodiments, a plurality of first double-layer structures MDLS1 are substantially parallel to each other and extend along a first direction DR1, respectively; a plurality of first single-layer structures MSLS1 are substantially parallel to each other and extend along a second direction DR2, respectively. The first direction DR1 and the second direction DR2 are different from each other and intersect each other at an angle greater than zero. Optionally, the first direction DR1 and the second direction DR2 are two non-parallel directions, for example, the first direction DR1 and the second direction DR2 intersect each other. Optionally, the first direction DR1 and the second direction DR2 are perpendicular to each other. Optionally, the first direction DR1 and the second direction DR2 intersect each other at an angle other than 90 degrees.

[0097] Figure 8 for Figure 4 A further enlarged schematic diagram of the second enlarged region. (Refer to...) Figure 4 and Figure 8In some embodiments, a plurality of first single-layer structures MSLS1 of a plurality of touch signal lines are respectively clustered in a second region R2; and a plurality of second single-layer structures MSLS2 of a plurality of touch signal lines are respectively clustered in a third region R3. The plurality of first single-layer structures MSLS1 are respectively connected to the plurality of second single-layer structures MSLS2. The second region R2 and the third region R3 are directly adjacent to each other.

[0098] In some embodiments, a plurality of first single-layer structures MSLS1 and a plurality of second single-layer structures MSLS2 are portions of touch signal lines of the same type. In one example, a plurality of first single-layer structures MSLS1 and a plurality of second single-layer structures MSLS2 are portions of touch scan signal lines connected to touch scan electrodes. In another example, a plurality of first single-layer structures MSLS1 and a plurality of second single-layer structures MSLS2 are portions of touch sense signal lines connected to touch sense electrodes. In one example, a plurality of first single-layer structures MSLS1 and a plurality of second single-layer structures MSLS2 are portions of a plurality of first touch signal lines SGL1. In one example, a plurality of first single-layer structures MSLS1 and a plurality of second single-layer structures MSLS2 are portions of a plurality of second touch signal lines SGL2. In one example, a plurality of first single-layer structures MSLS1 and a plurality of second single-layer structures MSLS2 are portions of a plurality of third touch signal lines SGL3.

[0099] In some embodiments, a plurality of first single-layer structures MSLS1 are substantially parallel to each other and extend along a second direction DR2, respectively; a plurality of second single-layer structures MSLS2 are substantially parallel to each other and extend along a third direction DR3, respectively. Optionally, the second direction DR2 and the third direction DR3 are two non-parallel directions, for example, the second direction DR2 and the third direction DR3 intersect each other. Optionally, the second direction DR2 and the third direction DR3 intersect each other at an angle other than 90 degrees. In some embodiments, the second direction DR2 and the third direction DR3 intersect each other at an angle in the range of 15 degrees to 25 degrees, for example, 15 degrees to 17 degrees, 17 degrees to 19 degrees, 19 degrees to 21 degrees, 21 degrees to 23 degrees, or 23 degrees to 25 degrees. Optionally, the second direction DR2 and the third direction DR3 intersect each other at an angle of 20.03 degrees.

[0100] Figure 9 It is along Figure 8 A cross-sectional view of line E-E' in the diagram. (Reference) Figure 9 In some embodiments, in the second region R2, at least two of the plurality of first single-layer structures MSLS1 are respectively located in the first layer SL1 and the second layer SL2. Figure 9 and Figure 8In one example shown, in the second region R2, a plurality of first single-layer structures MSLS1 are alternately located in the first layer SL1 and the second layer SL2. In some embodiments, in the third region R3, at least two of the plurality of second single-layer structures MSLS2 are located in the first layer SL1 and the second layer SL2, respectively. Figure 9 and Figure 8 In one example shown, in the third region R3, a plurality of second single-layer structures MSLS2 are alternately arranged in the first layer SL1 and the second layer SL2.

[0101] In some embodiments, a plurality of connection points CP1 connecting a plurality of first single-layer structures MSLS1 and a plurality of second single-layer structures MSLS2 are arranged along a fourth direction DR4. Optionally, the second direction DR2 and the fourth direction DR4 are two non-parallel directions, for example, the second direction DR2 and the fourth direction DR4 intersect each other. Optionally, the second direction DR2 and the fourth direction DR4 intersect each other at an angle other than 90 degrees. In some embodiments, the second direction DR2 and the fourth direction DR4 intersect each other at an angle in the range of 20 degrees to 40 degrees, for example, 20 degrees to 25 degrees, 25 degrees to 30 degrees, 30 degrees to 35 degrees, or 35 degrees to 40 degrees. Optionally, the second direction DR2 and the fourth direction DR4 intersect each other at an angle of 30.848 degrees.

[0102] In some embodiments, refer to Figure 4 , Figure 7 and Figure 8 Multiple touch signal lines, including multiple second single-layer structures MSLS2, are respectively clustered in a third region R3; multiple touch signal lines, including multiple second double-layer structures MDLS2, are respectively clustered in a fourth region R4. The multiple second single-layer structures MSLS2 are respectively connected to the multiple second double-layer structures MDLS2. The third region R3 and the fourth region R4 are directly adjacent to each other. Optionally, the third region R3 and the fourth region R4 are located in corner areas of the touch structure. For example, the areas corresponding to the third region R3 and the fourth region R4 are... Figure 1A These are represented as R3' and R4'.

[0103] In some embodiments, a plurality of second single-layer structures MSLS2 and a plurality of second double-layer structures MDLS2 are portions of touch signal lines of the same type. In one example, a plurality of second single-layer structures MSLS2 and a plurality of second double-layer structures MDLS2 are portions of touch scan signal lines connected to touch scan electrodes. In another example, a plurality of second single-layer structures MSLS2 and a plurality of second double-layer structures MDLS2 are portions of touch sense signal lines connected to touch sense electrodes. In one example, a plurality of second single-layer structures MSLS2 and a plurality of second double-layer structures MDLS2 are portions of a plurality of first touch signal lines SGL1. In one example, a plurality of second single-layer structures MSLS2 and a plurality of second double-layer structures MDLS2 are portions of a plurality of second touch signal lines SGL2. In one example, a plurality of second single-layer structures MSLS2 and a plurality of second double-layer structures MDLS2 are portions of a plurality of third touch signal lines SGL3.

[0104] In some embodiments, a plurality of second single-layer structures MSLS2 are substantially parallel to each other and extend along a third direction DR3 respectively; a plurality of second double-layer structures MDLS2 are substantially parallel to each other and extend along a fifth direction DR5 respectively.

[0105] In some embodiments, the third direction DR3 and the fifth direction DR5 are substantially parallel to each other, for example within an error of less than 5 degrees, or preferably parallel to each other.

[0106] In some embodiments, the third direction DR3 and the fifth direction DR5 are two non-parallel directions; for example, the third direction DR3 and the fifth direction DR5 intersect each other. Optionally, the third direction DR3 and the fifth direction DR5 intersect each other at an angle other than 90 degrees. In some embodiments, the third direction DR3 and the fifth direction DR5 intersect each other at an angle of less than 10 degrees.

[0107] See Figure 9 In some embodiments, in the third region R3, a plurality of second single-layer structures MSLS2 are alternately located in the first layer SL1 and the second layer SL2.

[0108] In some embodiments, a plurality of second connection points CP2, which respectively connect a plurality of second single-layer structures MSLS2 and a plurality of second double-layer structures MDLS2, are arranged along the sixth direction DR6.

[0109] In some embodiments, the second direction DR2 and the sixth direction DR6 are substantially parallel to each other, for example within an error of less than 5 degrees, or preferably parallel to each other.

[0110] In some embodiments, the second direction DR2 and the sixth direction DR6 are two non-parallel directions; for example, the second direction DR2 and the sixth direction DR6 intersect each other. Optionally, the second direction DR2 and the sixth direction DR6 intersect each other at an angle other than 90 degrees. In some embodiments, the second direction DR2 and the sixth direction DR6 intersect each other at an angle of less than 10 degrees.

[0111] Figure 10 It is along Figure 8 The cross-sectional view of line F-F' in the diagram. (Refer to...) Figure 8 and Figure 10 In some embodiments, the touch structure includes a via v extending through the touch insulating layer TI at each of the second connection points CP2, and the material in the second layer SL2 is connected to the material in the first layer SL1 through the via v.

[0112] Figure 11 This is a magnified view of a touch structure according to some embodiments of the present disclosure during the transition from the touch area to the surrounding area. Figure 12 yes Figure 11 Another enlarged view. (See reference) Figure 11 and Figure 12 Multiple touch signal lines have multiple third double-layer structures (MDLS3) clustered in region 5 (R5); multiple touch signal lines have multiple fourth double-layer structures (MDLS4) clustered in region 6 (R6); and multiple touch signal lines have multiple third single-layer structures (MSLS3) clustered in region 7 (R7). The multiple fourth double-layer structures (MDLS4) in region 6 (R6) are connected to the multiple third single-layer structures (MSLS3) in region 7 (R7). The multiple third single-layer structures (MSLS3) in region 7 (R7) are connected to the multiple third double-layer structures (MDLS3) in region 5 (R5). Regions 6 (R6) and 7 (R7) are directly adjacent. Region 7 (R7) and 5 (R5) are directly adjacent.

[0113] In some embodiments, a plurality of third double-layer structures MDLS3, a plurality of fourth double-layer structures MDLS4, and a plurality of third single-layer structures MSLS3 are portions of touch signal lines of the same type. In one example, a plurality of third double-layer structures MDLS3, a plurality of fourth double-layer structures MDLS4, and a plurality of third single-layer structures MSLS3 are portions of touch scanning signal lines connected to touch scanning electrodes. In another example, a plurality of third double-layer structures MDLS3, a plurality of fourth double-layer structures MDLS4, and a plurality of third single-layer structures MSLS3 are portions of touch sensing signal lines connected to touch sensing electrodes. In one example, a plurality of third double-layer structures MDLS3, a plurality of fourth double-layer structures MDLS4, and a plurality of third single-layer structures MSLS3 are portions of a plurality of first touch signal lines SGL1. In one example, a plurality of third double-layer structures MDLS3, a plurality of fourth double-layer structures MDLS4, and a plurality of third single-layer structures MSLS3 are portions of a plurality of second touch signal lines SGL2. In one example, a plurality of third double-layer structures MDLS3, a plurality of fourth double-layer structures MDLS4, and a plurality of third single-layer structures MSLS3 are portions of a plurality of third touch signal lines SGL3.

[0114] Figure 13 This illustrates a corresponding one of a plurality of third single-layer structures, which connects a corresponding one of a plurality of third double-layer structures to a corresponding one of a plurality of fourth double-layer structures. (See reference) Figure 13 Each of the plurality of third single-layer structures MSLS3 is a semi-ring structure connecting each of the plurality of third double-layer structures MDLS3 and each of the plurality of fourth double-layer structures MDLS4. The semi-ring structure includes two parallel portions PP1 and PP2 extending along the second direction DR2, and a connecting portion CPP that connects the two parallel portions PP1 and PP2 together.

[0115] In some embodiments, a plurality of third double-layer structures MDLS3 are substantially parallel to each other and extend along a first direction DR1, respectively; a plurality of fourth double-layer structures MDLS4 are substantially parallel to each other and extend along the first direction DR1, respectively. The first direction DR1 and the second direction DR2 are different from each other and intersect each other at an angle greater than zero. Optionally, the first direction DR1 and the second direction DR2 are two non-parallel directions, for example, the first direction DR1 and the second direction DR2 intersect each other. Optionally, the first direction DR1 and the second direction DR2 are perpendicular to each other. Optionally, the first direction DR1 and the second direction DR2 intersect each other at an angle other than 90 degrees.

[0116] Figure 14 For along Figure 12 Cross-sectional view of line G-G', see reference. Figure 12 and Figure 14In some embodiments, in the seventh region R7, at least two of the plurality of third single-layer structures MSLS3 are located in the first layer SL1 and the second layer SL2, respectively. Figure 14 and Figure 12 In one example shown, in the seventh region R7, multiple third single-layer structures MSLS3 are alternately located in the first layer SL1 and the second layer SL2.

[0117] Reference Figure 11 and Figure 12 In some embodiments, a plurality of fourth single-layer structures MSLS4 of a plurality of touch signal lines are respectively clustered in an eighth region R8. The plurality of fourth single-layer structures MSLS4 are substantially parallel to each other and extend along a second direction DR2. The plurality of fourth single-layer structures MSLS4 are respectively connected to a plurality of third double-layer structures MDLS3. Figure 4 , Figure 5 , Figure 11 and Figure 12 As shown, the plurality of fourth single-layer structures MSLS4 are at least subsets of the plurality of first single-layer structures MSLS1.

[0118] Figure 15 It is along Figure 1A A cross-sectional view of the H-H' line in the diagram. Figure 16 It is along Figure 1A A cross-sectional view of line I-I' in the diagram. (See also...) Figure 1A , Figure 15 and Figure 16 As shown, in some embodiments, the touch structure includes a plurality of first mesh electrodes TE1 arranged in multiple rows and a plurality of second mesh electrodes TE2 arranged in multiple columns. The plurality of first mesh electrodes TE1 and the plurality of second mesh electrodes TE2 are located in a second layer SL2. The touch structure also includes a plurality of touch electrode bridges EB located in the first layer SL1; and a via Vb extending through a touch insulating layer TI. Optionally, the plurality of touch electrode bridges EB extend through the via Vb to respectively connect adjacent second mesh blocks in corresponding columns of the plurality of columns of the plurality of second mesh electrodes TE2.

[0119] Figure 17 This is a schematic diagram illustrating a touch structure according to some embodiments of the present disclosure. (Refer to...) Figure 17In some embodiments, the touch structure includes a plurality of first mesh electrodes TE1 and a plurality of second mesh electrodes TE2. Optionally, the touch structure is a mutual capacitance touch structure. Optionally, the plurality of first mesh electrodes TE1 are a plurality of touch scanning electrodes, and the plurality of second mesh electrodes TE2 are a plurality of touch sensing electrodes. Optionally, the plurality of mesh touch electrodes TE1 are a plurality of touch sensing electrodes, and the plurality of second mesh electrodes TE2 are a plurality of touch scanning electrodes. The touch structure is confined within a touch region TCR, and not within a window region WR surrounded by the touch region TCR. For example, the touch structure may be a touch structure in a display panel, wherein the touch region TCR substantially overlaps with the display area of ​​the display panel, and the window region WR is an area in the display panel having holes configured for mounting accessories (such as camera lenses or fingerprint sensors). The display panel is configured to display an image in at least a portion of the touch region TCR. In one example, there are no display elements and touch structures of the display panel in the window area WR; both display elements and touch structures of the display panel are present in at least a portion of the display area or the touch area TCR.

[0120] Reference Figure 17 In some embodiments, a plurality of mesh touch electrodes TE1 are arranged in multiple rows, each being a corresponding one of the plurality of mesh touch electrodes TE1; a plurality of mesh scanning electrodes TE2 are arranged in multiple columns, each being a corresponding one of a plurality of second mesh electrodes TE2. In some embodiments, at least one row of the multiple rows of first mesh electrodes TE1 extends through the window region WR. For example, as... Figure 17 As shown, the window-crossing rows Rwc of multiple first mesh electrodes TE1 pass through the window region WR. The touch electrodes in the window-crossing rows Rwc are separated into two portions by the window region WR (the portion to the left of the window region WR and the portion to the right of the window region WR). In some embodiments, at least one column of multiple columns of second mesh electrodes TE2 passes through the window region WR. For example, as... Figure 17 As shown, the window-crossing column Cwc in the plurality of second mesh electrodes TE2 passes through the window region WR. The touch electrodes in the window-crossing column Cwc are separated into two parts by the window region WR (the part above the window region WR and the part below the window region WR).

[0121] Figure 18A This is a schematic diagram illustrating a window area according to some embodiments of the present disclosure. Figure 18B This is an enlarged view of the touch structure surrounding the window area according to some embodiments of the present disclosure. Figure 18C This is a further enlarged view of the touch structure surrounding a window area according to some embodiments of this disclosure. Reference Figure 18AIn some embodiments, the window region WR has at least four sides, including a first side S1, a second side S2, a third side S3, and a fourth side S4. (See also...) Figures 18A to 18C In some embodiments, the window crossing Rwc of the plurality of first mesh electrodes TE1 includes a first mesh block MB1 located on a first side S1 of the window region WR and a second mesh block MB2 located on a second side S2 of the window region WR; a first conductive plate CP1 directly connected to a plurality of mesh lines of the first mesh block MB1; a second conductive plate CP2 directly connected to a plurality of mesh lines of the second mesh block MB2; and a first conductive bridge CB1 connecting the first conductive plate CP1 and the second conductive plate CP2.

[0122] In this touch structure, adjacent grid blocks (e.g., first grid block MB1 and second grid block MB2) spaced apart by window areas WR are connected by conductive bridges (e.g., first conductive bridge CB1) with the aid of conductive plates (e.g., first conductive plate CP1 and second conductive plate CP2). Because forming these bridges typically involves forming vias to connect corresponding mesh electrodes, it is extremely difficult to precisely connect the mesh electrode lines to the bridges without the conductive plates acting as an intermediary. The novel and unique structure of this touch structure ensures the connection of adjacent grid blocks spaced apart by window areas WR to transmit touch signals.

[0123] Reference Figure 18A and Figure 18C The first conductive plate CP1, the second conductive plate CP2, and the first conductive bridge CB1 respectively surround the first portion P1, the second portion P2, and the third portion P3 around the periphery of the window region WR. Optionally, the third portion P3 partially overlaps with the first portion P1 and partially overlaps with the second portion P2. Optionally, the first portion P1 is located on the first side S1 of the window region WR; the second portion P2 is located on the second side S2 of the window region WR; and the third portion P3 is located on the fourth side S4 of the window region WR.

[0124] Reference Figures 18A to 18C In some embodiments, the window crossing column Cwc of the plurality of second mesh electrodes TE2 includes a third mesh block MB3 and a fourth mesh block MB4, which are located on the third side S3 and the fourth side S4 of the window region WR, respectively; a third conductive plate CP3, which is directly connected to a plurality of mesh lines of the third mesh block MB3; a fourth conductive plate CP4, which is directly connected to a plurality of mesh lines of the fourth mesh block MB4; and a second conductive bridge CB2 connecting the third conductive plate CP3 and the fourth conductive plate CP4.

[0125] Reference Figure 18A and Figure 18CThe third conductive plate CP3, the fourth conductive plate CP4, and the second conductive bridge CB2 surround the fourth portion P4, the fifth portion P5, and the sixth portion P6 of the window region WR, respectively. In one example, the third conductive plate CP3, the fourth conductive plate CP4, and the second conductive bridge CB2 are part of an integral structure; the third conductive plate CP3 includes a first arc-shaped plate, the fourth conductive plate CP4 includes a second arc-shaped plate, and the second conductive bridge CB2 includes a third arc-shaped bridge. In another example, the third arc is not concentric with respect to the first arc and is not concentric with respect to the second arc, thus the boundary between the third conductive plate CP3 and the second conductive bridge CB2, as well as the boundary between the fourth conductive plate CP4 and the second conductive bridge CB2, can be distinguished. In yet another example, the radius of the third arc is different from the radius of the first arc and is different from the radius of the second arc, thus the boundary between the third conductive plate CP3 and the second conductive bridge CB2, as well as the boundary between the fourth conductive plate CP4 and the second conductive bridge CB2, can be distinguished. Optionally, the sixth portion P6 partially overlaps with the fourth portion P4 and partially overlaps with the fifth portion P5. Optionally, the fourth part P4 is located on the third side S3 of the window area WR; the fifth part P5 is located on the fourth side S4 of the window area WR; and the sixth part P6 is located on the second side S2 of the window area WR.

[0126] refer to Figures 18A to 18C In some embodiments, the window crossing Rwc of the plurality of first mesh electrodes TE1 further includes a third conductive bridge CB3 connecting the first conductive plate CP1 and the second conductive plate CP2. (See also...) Figure 18A and Figure 18C A first conductive plate CP1, a second conductive plate CP2, and a third conductive bridge CB3 surround a first portion P1, a second portion P2, and a seventh portion P7 around the periphery of the window region WR, respectively. Optionally, the seventh portion P7 partially overlaps with the first portion P1 and also partially overlaps with the second portion P2. Optionally, the first portion P1 is located on the first side S1 of the window region WR; the second portion P2 is located on the second side S2 of the window region WR; and the seventh portion P7 is located on the third side S3 of the window region WR.

[0127] refer to Figures 18A to 18C In some embodiments, the window crossing column Cwc of the plurality of second mesh electrodes TE2 further includes a fourth conductive bridge CB4 connecting the third conductive plate CP3 and the fourth conductive plate CP4. (See also...) Figure 18A and Figure 18CThe third conductive plate CP3, the fourth conductive plate CP4, and the fourth conductive bridge CB4 respectively surround the fourth portion P4, the fifth portion P5, and the eighth portion P8 around the window region WR. Optionally, the eighth portion P8 partially overlaps with the fourth portion P4 and also partially overlaps with the fifth portion P5. Optionally, the fourth portion P4 is located on the third side S3 of the window region WR; the fifth portion P5 is located on the fourth side S4 of the window region WR; and the eighth portion P8 is located on the first side S1 of the window region WR.

[0128] Reference Figure 17 In some embodiments, the window traversal row Rwc further includes a plurality of first non-window grid blocks NWB1, and the window traversal column Cwc further includes a plurality of second non-window grid blocks NWB2. Optionally, due to the presence of the window region WR, the area of ​​at least the first grid block MB1 is smaller than the area of ​​each of the plurality of first non-window grid blocks NWB1 (5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, or 95% or more). Optionally, the area of ​​the first grid block MB1 is smaller than the area of ​​each of the plurality of first non-window grid blocks NWB1, and the area of ​​the second grid block MB2 is also smaller than the area of ​​each of the plurality of first non-window grid blocks NWB1. Optionally, due to the presence of the window region WR, the area of ​​at least the third grid block MB3 is smaller than the area of ​​each of the plurality of second non-window grid blocks NWB2. Optionally, the area of ​​the third grid block MB3 is smaller than the area of ​​each of the plurality of second non-window grid blocks NWB2, and the area of ​​the fourth grid block MB4 is also smaller than the area of ​​each of the plurality of second non-window grid blocks NWB2.

[0129] In another aspect, this disclosure provides a display device. In some embodiments, the display device includes a display panel; a touch structure described herein or manufactured using the methods described herein; and an integrated circuit. Examples of suitable display devices include, but are not limited to, electronic paper, mobile phones, tablet computers, televisions, monitors, laptop computers, digital photo albums, GPS, etc. Optionally, the display device is an organic light-emitting diode (OLED) display device. Optionally, the display device is a liquid crystal display (LCD) device.

[0130] Figure 19 This is a cross-sectional view of a display panel according to some embodiments of the present disclosure. (Refer to...) Figure 19In the display area, the display panel includes a substrate BS, a plurality of thin-film transistors (TFTs) on the substrate BS, a passivation layer PVX located on the side of the plurality of TFTs away from the substrate BS, a first planarization layer PLX1 located on the side of the passivation layer PVX away from the substrate BS, a relay electrode RE located on the side of the first planarization layer PLX1 away from the passivation layer PVX, a second planarization layer PLN2 located on the side of the relay electrode RE away from the first planarization layer PLN1, a pixel defining layer PDL located on the side of the second planarization layer PLN2 away from the first planarization layer PLN1 and defining the sub-pixel aperture, an anode AD located on the side of the second planarization layer PLN2 away from the first planarization layer PLN1, and a bit The light-emitting layer EL is located on the side of the anode AD away from the second planarization layer PLN2; the cathode CD is located on the side of the light-emitting layer EL away from the anode AD; the first inorganic encapsulation layer CVD1 is located on the side of the cathode CD away from the light-emitting layer EL; the organic encapsulation layer IJP is located on the side of the first inorganic encapsulation layer CVD1 away from the cathode CD; the second inorganic encapsulation layer CVD2 is located on the side of the organic encapsulation layer IJP away from the first inorganic encapsulation layer CVD1; the buffer layer BUF is located on the side of the second inorganic encapsulation layer CVD2 away from the organic encapsulation layer IJP; the touch insulating layer TI is located on the side of the buffer layer BUF away from the second inorganic encapsulation layer CVD2; and the touch electrode (e.g., such as...) is located on the side of the touch insulating layer TI away from the buffer layer BUF. Figure 19 The diagram shows multiple first touch electrodes TE1 and multiple second touch electrodes TE2, as well as an outer coating OC located on the side of the touch electrodes away from the touch insulating layer TI.

[0131] Figure 20 This is a schematic diagram illustrating the display area and surrounding area in a display device according to some embodiments of the present disclosure. (Refer to...) Figure 20 In some embodiments, the display device includes a display area DA and a peripheral area PA. Optionally, the display area DA and... Figure 1B The touch area TCA in the image is essentially the same, and the surrounding area PA is the same as... Figure 1B The peripheral regions PA are substantially the same. In some embodiments, the peripheral regions PA include a first sub-region PA1 located on a first side S1 of the display region DA, a second sub-region PA2 located on a second side S2 of the display region DA, a third sub-region PA3 located on a third side S3 of the display region DA, and a fourth sub-region PA4 located on a fourth side S4 of the display region DA. Optionally, the first side S1 and the fourth side S4 are opposite to each other. Optionally, the second side S2 and the third side S3 are opposite to each other. Optionally, the first sub-region PA1 is a sub-region where a plurality of first touch signal lines SGL1, a plurality of second touch signal lines SGL2, and a plurality of third touch signal lines SGL3 are connected to an integrated circuit (e.g., an integrated touch circuit).

[0132] In some embodiments, the first sub-region PA1 includes a side region SR and one or more corner regions (e.g., a first corner region CR1 and a second corner region CR2). The one or more corner regions are located at the corners of the touch structure. The one or more corner regions connect the side region SR to one or more adjacent sub-regions of the peripheral region PA. For example, the first corner region CR1 connects the side region SR to the second sub-region PA2, and the second corner region CR2 connects the side region SR to the third sub-region PA3.

[0133] In some embodiments, the first sub-region PA1 has a first shortest width w1 along the direction from the display area DA to the first sub-region PA1. Optionally, the second sub-region PA2 has a second shortest width w2 along the direction from the display area DA to the second sub-region PA2. Optionally, the third sub-region PA3 has a third shortest width w3 along the direction from the display area DA to the third sub-region PA3. Optionally, the fourth sub-region PA4 has a fourth shortest width w4 along the direction from the display area DA to the fourth sub-region PA4. In some embodiments, the first shortest width w1 is greater than at least one of the other shortest widths, for example, greater than at least one of the second shortest width w2, the third shortest width w3, or the fourth shortest width w4. Optionally, the first shortest width w1 is greater than any of the other shortest widths, for example, greater than the second shortest width w2, greater than the third shortest width w3, and greater than the fourth shortest width w4.

[0134] For example, the first sub-region PA1 of the peripheral region having the aforementioned double-layer and single-layer regions has a first minimum width w1 along the direction from the touch control area to the first sub-region PA1. The first minimum width w1 can be reduced from 1.36 mm to 1.076 mm. The reference value of 1.36 mm can be a reference first minimum width of the corresponding first sub-region of the peripheral region in a reference display device without the double-layer and single-layer regions of this disclosure. In one example, the touch signal line of the reference display device adopts a double-layer structure throughout the peripheral region. By forming the touch signal line with the complex structure discussed in this disclosure, the first minimum width in the first sub-region can be significantly reduced compared to the touch signal line in the reference display device.

[0135] As used herein, the term "display area" refers to the area of ​​the display substrate (e.g., a relative substrate or array substrate) in a display panel where an image is actually displayed. Optionally, the display area may include subpixel areas and inter-subpixel areas. A subpixel area refers to the light-emitting area of ​​a subpixel, for example, the area corresponding to a pixel electrode in a liquid crystal display, or the area corresponding to a light-emitting layer in an organic light-emitting diode (OLED) display panel. An inter-subpixel area refers to the area between adjacent subpixel areas, for example, the area corresponding to a black matrix in a liquid crystal display, or the area corresponding to a pixel defining layer in an OLED display panel. Optionally, an inter-subpixel area is the area between adjacent subpixel areas within the same pixel. Optionally, an inter-subpixel area is the area between two adjacent subpixel areas of two adjacent pixels.

[0136] In another aspect, the present invention provides a method for manufacturing a touch structure. In some embodiments, the method includes forming a plurality of touch electrodes in a touch region and a plurality of touch signal lines in a peripheral region. Optionally, forming each of the plurality of touch signal lines includes forming a double-layer structure in a double-layer region and a single-layer structure in a single-layer region. Optionally, the double-layer region and the single-layer region in the peripheral region are connected to a first sub-region of an integrated circuit, the first sub-region having a first shortest width along a direction from the touch region to the first sub-region, the first shortest width being greater than the shortest width of at least one sub-region in the peripheral region other than the first sub-region. Optionally, a plurality of adjacent double-layer structures in the double-layer region are formed to be respectively connected to a plurality of adjacent single-layer structures in the single-layer region. Optionally, at least two of the plurality of adjacent single-layer structures are formed to be respectively located in a first layer and a second layer. Optionally, the method further includes forming a touch insulating layer between the first layer and the second layer.

[0137] For illustrative and descriptive purposes, the foregoing description of embodiments of the invention has been provided. It is not exhaustive, nor is it intended to limit the invention to the precise forms or exemplary embodiments disclosed. Therefore, the foregoing description should be considered illustrative rather than restrictive. Clearly, many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to explain the principles of the invention and its best mode of practical application, thereby enabling those skilled in the art to understand the various embodiments of the invention and the various modifications suitable for the particular use or implementation contemplated. The scope of the invention is intended to be defined by the appended claims and their equivalents, wherein, unless otherwise stated, all terms are to be interpreted in their broadest reasonable sense. Therefore, the terms “the invention,” “the present invention,” etc., do not necessarily limit the scope of the claims to the specific embodiments, and references to exemplary embodiments of the invention do not imply limitation of the invention, nor should such limitation be inferred. The invention is defined only by the spirit and scope of the appended claims. Furthermore, these claims may involve the use of “first,” “second,” etc., followed by nouns or elements. These terms should be understood as nomenclature and should not be construed as limiting the number of elements modified by these nomenclatures unless a specific number has been given. Any advantages and benefits described may not apply to all embodiments of the invention. It should be understood that changes to the described embodiments can be made by those skilled in the art without departing from the scope of the invention as defined by the appended claims. Furthermore, the elements and components in this disclosure are not intended for public distribution, whether or not they are expressly recited in the appended claims.

Claims

1. A touch structure comprising a plurality of touch electrodes in a touch area and a plurality of touch signal lines in a peripheral area; in, Each of the plurality of touch signal lines includes a double-layer structure in a double-layer region and a single-layer structure in a single-layer region. The peripheral region includes a first sub-region on a first side of the touch region, a second sub-region on a second side of the touch region, a third sub-region on a third side of the touch region, and a fourth sub-region on a fourth side of the touch region. The first sub-region includes a side region and one or more corner regions, and the one or more corner regions are respectively located at the corners of the touch structure. The dual-layer region and the single-layer region are located in the first sub-region, and the first sub-region has a first shortest width along the direction from the touch area to the first sub-region, and the first shortest width is greater than the shortest width of at least one sub-region in the surrounding region other than the first sub-region. The multiple adjacent double-layer structures in the double-layer region are respectively connected to the multiple adjacent single-layer structures in the single-layer region; At least two of the plurality of adjacent single-layer structures are located in the first layer and the second layer, respectively; In a plurality of adjacent monolayer structures, the orthographic projections of adjacent monolayer structures on the substrate are directly adjacent to each other or at least partially overlap each other; and The touch structure also includes a touch insulating layer located between the first layer and the second layer; Each double-layer structure includes a first portion in the first layer and a second portion in the second layer; a first adjacent corresponding single-layer structure in the second layer is connected to the corresponding second portion of the first adjacent double-layer structure; And the second adjacent corresponding single-layer structure in the first layer is connected to the corresponding first part of the second adjacent double-layer structure.

2. The touch structure according to claim 1, wherein, The transition point from the double-layer region to the single-layer region is at least partially located in the corner region.

3. The touch structure according to claim 1, wherein, The double-layer region is located at least partially in at least one of the second sub-region, the third sub-region, and the fourth sub-region.

4. The touch structure according to claim 1, wherein, The single-layer region is located in the side region.

5. The touch structure according to claim 1, wherein, The double-layered region is at least partially located in the corner region; And / or, the single-layer region is at least partially located in the corner region.

6. The touch structure according to claim 1, wherein, The first part and the second part are connected by a connection through-hole extending through the touch insulation layer.

7. The touch structure according to claim 1, wherein, The plurality of first double-layer structures of the plurality of touch signal lines are respectively clustered in the first region; The plurality of first single-layer structures of the plurality of touch signal lines are respectively clustered in the second region; The plurality of first double-layer structures are substantially parallel to each other and extend along a first direction respectively; The plurality of first single-layer structures are substantially parallel to each other and extend along the second direction respectively; At least two of the plurality of first single-layer structures are located in the first layer and the second layer, respectively; as well as The first direction and the second direction are different from each other and intersect each other at an angle greater than zero.

8. The touch structure according to claim 7, wherein, The plurality of connection points connecting the plurality of first double-layer structures and the plurality of first single-layer structures are arranged along the seventh direction; and The second direction and the seventh direction intersect each other at an angle ranging from 6 to 15 degrees.

9. The touch structure according to claim 1, wherein, The plurality of touch electrodes include a plurality of first mesh electrodes arranged in a plurality of rows and a plurality of second mesh electrodes arranged in a plurality of columns; as well as The plurality of first mesh electrodes and the plurality of second mesh electrodes are in the second layer.

10. The touch structure according to claim 9, wherein, Also includes: Multiple touch electrode bridges in the first layer; and Through-holes extending through the touch insulation layer; The plurality of touch electrode bridges extend through the through-hole to connect adjacent second mesh blocks in corresponding columns of the plurality of second mesh electrodes.

11. The touch structure according to claim 10, wherein, The plurality of touch signal lines include: Multiple first touch signal lines are respectively connected to the multiple first mesh electrodes; Multiple second touch signal lines, each connected to a first terminal of the multiple second mesh electrodes; and Multiple third touch signal lines are respectively connected to the second terminals of the multiple second mesh electrodes.

12. The touch structure according to claim 1, wherein, At least two adjacent single-layer structures located in the first layer and the second layer are electrically connected to the touch electrodes in adjacent rows.

13. A display device, wherein, include: Display panel; The touch structure according to any one of claims 1 to 12; as well as integrated circuit.

14. The display device according to claim 13, wherein, The display panel includes: Multiple light-emitting elements; An encapsulation layer on the plurality of light-emitting elements, wherein the encapsulation layer includes a first inorganic encapsulation layer, an organic encapsulation layer located on the side of the first inorganic encapsulation layer away from the plurality of light-emitting elements, and a second inorganic encapsulation layer located on the side of the organic encapsulation layer away from the first inorganic encapsulation layer; and A buffer layer is located on the side of the second inorganic encapsulation layer that is away from the organic encapsulation layer; The touch insulating layer is located on the side of the buffer layer away from the second inorganic encapsulation layer.

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