Touch substrate, display module and display device
By setting a touch electrode layer and conductive bridge in the planar area of the touch substrate, and placing vias in the planar area, while not setting conductive bridges and vias in the curved area, the problem of poor film adhesion in the curved area is solved, and stable touch function and display effect in the curved area are achieved.
Patent Information
- Application Number
- CN202511066077.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-30
- Publication Date
- 2025-11-18
AI Technical Summary
Existing touch panels have poor film adhesion in curved areas, which can easily lead to film peeling and affect the display effect.
A touch electrode layer and conductive bridge are set in the planar area of the touch substrate, and vias are located in the planar area. No conductive bridges and vias are set in the curved area to ensure that the touch electrode layer has touch function in both the planar and curved areas, improve the stress in the curved area, and enhance the film bonding effect.
It effectively avoids the problem of film peeling in curved areas, improves the film adhesion effect in curved areas, and ensures the normal transmission and display effect of touch functions.
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Figure CN120973254A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of display, in particular to a touch substrate, a display module and a display device. BACKGROUND
[0002] Touch panels (TP) can be divided into resistive, capacitive, surface acoustic wave and infrared types according to sensing principles. According to the structural relationship between the touch panel and the display screen, the touch panel can be divided into One Glass Solution (OGS) touch panel, on-cell touch panel and in-cell touch panel. In recent years, with the large-scale popularization of mobile phones, tablet computers and other electronic products, touch panels have become an important component for many electronic products to realize their functional operations.
[0003] However, the performance of the existing touch panel needs to be improved. SUMMARY
[0004] Therefore, the purpose of the present application is to provide a touch substrate, which is beneficial to improve the stress of the curved area, improve the film layer bonding effect of the curved area, and avoid film layer peeling.
[0005] To achieve the above purpose, the present application provides a touch substrate, which has a planar area and a curved area at least partially surrounding the planar area; the touch substrate further comprises:
[0006] a substrate, a touch bridge layer, an insulating layer and a touch electrode layer on the substrate, the insulating layer being between the touch bridge layer and the touch electrode layer;
[0007] The touch electrode layer comprises a plurality of first electrodes extending along a first direction and a plurality of second electrodes extending along a second direction, the first direction intersecting the second direction; the touch bridge layer comprises a conductive bridge; the first electrode comprises a plurality of first sub-electrodes spaced along the first direction, the insulating layer being provided with a via, and two adjacent first sub-electrodes being connected with the conductive bridge through the via;
[0008] The touch electrode layer is located in the planar area and the curved area, and the conductive bridge is located in the planar area; and / or the via is located in the planar area.
[0009] Based on the same inventive concept, the present application also discloses a touch substrate, which comprises a display area and a bezel area at least partially surrounding the display area, the display area comprising at least one R corner area, the R corner area comprising an adjacent arc corner area and a first area, the first area being planar; the arc corner area is located between the first area and the bezel area;
[0010] The touch substrate comprises a plurality of first touch channels extending along a first direction and a plurality of second touch channels extending along a second direction, the first direction intersects the second direction; the first touch channel comprises at least one first electrode, the first electrode comprises a plurality of first sub-electrodes spaced along the first direction, two adjacent first sub-electrodes are connected by a conductive bridge, and the conductive bridge is insulated from the first electrode in different layers;
[0011] The conductive bridge located in the R corner region is located in the first region.
[0012] Based on the same inventive concept, the application further discloses a display module comprising the touch substrate.
[0013] Based on the same inventive concept, the application further discloses a display device comprising the display module.
[0014] Compared with the prior art, the touch substrate provided by the application has a touch electrode layer located in the planar region and the curved region, ensuring that the planar region and the curved region both have touch function.
[0015] Meanwhile, the conductive bridge is located in the planar region, and / or the via is located in the planar region, that is, no conductive bridge and via are arranged in the curved region, which is beneficial to improve the stress of the curved region, improve the film layer bonding effect of the curved region, and avoid film layer peeling. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the application or related art, the following will briefly introduce the drawings needed to be used in the embodiments or related art descriptions. Obviously, the drawings in the following description are only embodiments of the application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.
[0017] Figure 1 It is a schematic view of a related touch substrate;
[0018] Figure 2 It is a schematic view of a touch substrate in an embodiment of the application;
[0019] Figure 3 It is a schematic view of the layer structure of the touch substrate in an embodiment of the application;
[0020] Figure 4 It is a schematic view of the area division of the R corner region of the touch substrate in an embodiment of the application;
[0021] Figure 5 It is a schematic view of the R corner region of the touch substrate in an embodiment of the application;
[0022] Figure 6 A schematic view of a first channel of an R corner region of a touch substrate according to another embodiment of the present application is provided;
[0023] Figure 7 A schematic view of a second channel of an R corner region of a touch substrate according to another embodiment of the present application is provided;
[0024] Figure 8 A schematic view of a third channel of an R corner region of a touch substrate according to another embodiment of the present application is provided;
[0025] Figure 9 A schematic view of a fourth channel of an R corner region of a touch substrate according to another embodiment of the present application is provided;
[0026] Figure 10 A schematic view of a touch substrate according to another embodiment of the present application is provided;
[0027] Figure 11 A schematic view of a partial region of a touch substrate according to another embodiment of the present application is provided.
[0028] Legend:
[0029] 100, touch substrate; 110, planar region; 111, first region; 112, first sub-region; 113, second sub-region; 114, third sub-region; 115, fourth sub-region; 120, curved region; 130, arc corner region; 131, second region; 132, third region; 133, fourth region; 140, first curved region; 150, second curved region; 160, R corner region; 170, frame region;
[0030] 1, substrate; 2, conductive bridge; 3, insulating layer; 31, via hole; 4, first electrode; a, first type electrode; b, second type electrode; c, third type electrode; d, fourth type electrode; e, fifth type electrode; f, sixth type electrode; 41, first sub-electrode; 42, first combined electrode; 43, second combined electrode; 5, second electrode; 51, second sub-electrode; 61, first touch lead; 62, second touch lead; 63, isolation line;
[0031] M1, touch bridge layer; M2, touch electrode layer;
[0032] T, first touch channel; T1, first channel; T2, second channel; N, second touch channel; N1, third channel; N2, fourth channel;
[0033] S1, first boundary; S2, second boundary; S3, third boundary; S4, fourth boundary;
[0034] Q1, first target sub-electrode; Q2, second target sub-electrode; Q3, third target sub-electrode; Q4, fourth target sub-electrode; Q5, fifth target sub-electrode; Q6, sixth target sub-electrode; Q7, seventh target sub-electrode; Q8, eighth target sub-electrode; Q9, ninth target sub-electrode;
[0035] L1, first connection line. DETAILED DESCRIPTION
[0036] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to specific embodiments and drawings.
[0037] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be understood as the common meanings understood by those skilled in the art to which the embodiments of the present application belong. The terms "first", "second" and similar terms used in the embodiments of the present application do not represent any order, number or importance, but are only used to distinguish different components. The terms "include", "contain" and similar terms mean that the components or objects before the terms cover the components or objects listed after the terms and their equivalents, and do not exclude other components or objects. The terms "connect" or "connected" and similar terms do not mean physical or mechanical connection, but can include electrical connection, whether direct or indirect. The terms "upper", "lower", "left", "right" and the like only represent relative positional relationships, which can change accordingly when the absolute positions of the described objects change.
[0038] Please refer to Figure 1 Fig. 1 shows a related touch substrate 100, the edge of which is designed as a curved surface, which is beneficial to increase the display area and improve the screen ratio, thereby improving the user experience.
[0039] Specifically, the touch substrate 100 includes a planar region 110 and a curved surface region 120 surrounding the planar region 110. In the planar region 110, the touch substrate 100 is planar, and in the curved surface region 120, the touch substrate 100 is bent into a curved surface.
[0040] In the curved surface region 120, due to the bending, the film layer stress is large, the film layer is poorly fitted, and the film layer peeling problem is prone to occur, which affects the display effect.
[0041] Based on this, the present application provides a touch substrate solution to solve the above problems.
[0042] Please refer to Figures 2-3 Fig. 1 shows a touch substrate 100 provided by an embodiment of the present application, which has a planar region 110 and a curved surface region 120 surrounding at least part of the planar region 110.
[0043] The touch substrate 100 further comprises a substrate 1, and a touch bridge layer M1, an insulating layer 3 and a touch electrode layer M2 on the substrate 1, the insulating layer 3 being between the touch bridge layer M1 and the touch electrode layer M2; the touch electrode layer M2 comprises a plurality of first electrodes 4 extending along a first direction (e.g. the Y direction in the figure) and a plurality of second electrodes 5 extending along a second direction (e.g. the X direction in the figure), the first direction intersecting the second direction; the touch bridge layer M1 comprises a conductive bridge 2; the first electrode 4 comprises a plurality of first sub-electrodes 41 spaced apart along the first direction, the insulating layer 3 is provided with a via hole 31, and two adjacent first sub-electrodes 41 are connected with the conductive bridge 2 through the via hole 31; wherein the touch electrode layer M2 is located in the planar region 110 and the curved surface region 120, and the conductive bridge 2 is located in the planar region 110; and / or the via hole 31 is located in the planar region 110.
[0044] Wherein, the conductive bridge 2 is located in the planar region 110; and / or the via hole 31 is located in the planar region 110, which can be understood as: all the conductive bridges 2 are located in the planar region 110; or all the via holes 31 are located in the planar region 110; or all the conductive bridges 2 and all the via holes 31 are located in the planar region 110.
[0045] The touch substrate 100 provided by the embodiment has the touch electrode layer M2 located in the planar region 110 and the curved surface region 120, so that the planar region 110 and the curved surface region 120 both have the touch function. Meanwhile, the conductive bridge 2 is located in the planar region 110; and / or the via hole 31 is located in the planar region 110, i.e. no conductive bridge 2 and via hole 31 are arranged in the curved surface region 120, which is conducive to improving the stress of the curved surface region 120, improving the film layer bonding effect of the curved surface region 120, and avoiding film layer peeling.
[0046] In one embodiment, the first direction and the second direction are perpendicular, which is convenient for processing. In other embodiments, the first direction and the second direction can not be perpendicular, and can be set to an angle of 60 degrees, 45 degrees, 30 degrees, etc. according to needs, and the specific angle is not limited. Further, the via hole 31 on the insulating layer 3 can be formed by etching or other processes.
[0047] In one embodiment, the touch electrode layer M2 is located on the side of the touch bridge layer M1 away from the substrate 1. In another embodiment, the touch electrode layer M2 is located on the side of the touch bridge layer M1 close to the substrate 1, and the touch function can also be achieved.
[0048] Reference Figure 2In one of the embodiments, the curved area 120 includes at least one first curved area 140, at least one second curved area 150, and at least one arc corner area 130, wherein the first curved area 140, the arc corner area 130, and the second curved area 150 are sequentially adjacent, wherein the first curved area 140 is located on one side of the planar area 110 and is arranged to extend in the first direction, and the second curved area 150 is located on the other side of the planar area 110 and is arranged to extend in the second direction.
[0049] In this embodiment, since the film layer of the arc corner area 130 is bent from a planar state to a curved state, and the bending directions of the first curved area 140 and the second curved area 150 intersect, the arc corner area 130 is bent in multiple directions, so the stress of the arc corner area 130 is relatively large compared to the first curved area 140 and the second curved area 150. By avoiding the arrangement of the conductive bridge 2 and the via 31 in the arc corner area 130, the film layer peeling problem at the positions corresponding to the conductive bridge 2 and the via 31 after bending is avoided.
[0050] Preferably, the curved area 120 is arranged around the planar area 110 to achieve better display effect, so that the final product can be a four-curved screen.
[0051] Preferably, the first electrode 4 is a touch driving electrode, and the second electrode 5 is a touch sensing electrode; or, the first electrode 4 is a touch sensing electrode, and the second electrode 5 is a touch driving electrode. The arrangement can be flexibly set according to needs, and the specific arrangement is not limited.
[0052] Further, the touch substrate 100 has two first curved areas 140 symmetrically arranged along the planar area 110, and two second curved areas 150 symmetrically arranged along the planar area 110. Specifically, the two first curved areas 140 are arranged in the second direction, and the second curved areas 150 are arranged in the first direction. Correspondingly, between any two adjacent first curved areas 140 and second curved areas 150 along the circumference of the planar area 110, there is an arc corner area 130, so the touch substrate 100 has four arc corner areas 130.
[0053] Referring to Figures 4-5 In one of the embodiments, the planar area 110 includes at least one first area 111 adjacent to the arc corner area 130, and the touch substrate 100 has at least one R corner area 160, the R corner area 160 including the first area 111 and the arc corner area 130, the arc corner area 130 including a second area 131, a third area 132, and a fourth area 133, the second area 131, the third area 132, and the fourth area 133 being sequentially adjacent along the circumference of the first area 111, the first curved area 140 being adjacent to the fourth area 133, and the second curved area 150 being adjacent to the second area 131.
[0054] Please continue to refer to Figures 5-9As shown, the touch substrate 100 includes a plurality of first touch channels T extending along a first direction and a plurality of second touch channels N extending along a second direction, each first touch channel T includes at least one first electrode 4, and each second touch channel N includes at least one second electrode 5; the plurality of first touch channels T includes a first channel T1 and a second channel T2 which are adjacent to each other, the first channel T1 is partially located in the first area 111, the second area 131, the third area 132 and the fourth area 133, and the second channel T2 is partially located in the first area 111 and the second area 131; the plurality of second touch channels N includes a third channel N1 and a fourth channel N2 which are adjacent to each other, the third channel N1 is partially located in the first area 111, the second area 131 and the third area 132, and the fourth channel N2 is partially located in the first area 111 and the fourth area 133, so as to ensure the normal transmission of touch signals in each area and the touch function is not affected.
[0055] Referring to Figures 6-9 As shown, in one embodiment, the second channel T2 does not overlap with the third area 132; the second channel T2 does not overlap with the fourth area 133; the third channel N1 does not overlap with the fourth area 133; the fourth channel N2 does not overlap with the second area 131 and the fourth channel N2 does not overlap with the third area 132. Among them, the second channel T2 does not need to pass through the third area 132 and the fourth area 133, the third channel N1 does not need to pass through the fourth area 133, and the fourth channel N2 does not need to pass through the second area 131 and the third area 132.
[0056] In one embodiment, the first touch channel T includes three first electrodes 4. In other embodiments, the number of first electrodes 4 in the first touch channel T can be two, four or five, etc., which is not limited.
[0057] In one embodiment, the second touch channel N includes one second electrode 5, and the orthographic projection of the second electrode 5 on the substrate 1 is a mesh, which is beneficial to reduce the resistance, improve the touch sensitivity, and improve the mechanical properties.
[0058] Referring to Figures 4-9 As shown, in one embodiment, the first area 111 includes a first sub-area 112, a second sub-area 113 and a third sub-area 114, the second sub-area 113 is located between the first sub-area 112 and the second area 131, and the third sub-area 114 is located between the first sub-area 112 and the fourth area 133; the first channel T1 is partially located in the third sub-area 114, the first sub-area 112 and the second sub-area 113, the second channel T2 is partially located in the first sub-area 112 and the second sub-area 113, the third channel N1 is partially located in the second sub-area 113, and the fourth channel N2 is partially located in the first sub-area 112 and the third sub-area 114. Among them, the first channel T1 passes through the first sub-area 112 and the second sub-area 113 to realize signal transmission.
[0059] Preferably, the partially conductive bridge 2 in the first channel T1 is located in the second sub-region 113, so as to avoid arranging the conductive bridge 2 in the first channel T1 in the third region 132.
[0060] Further, the first region 111 further comprises a fourth sub-region 115, which is adjacent to the third sub-region 114, the second sub-region 113 and the third region 132. Of course, in other embodiments, the first region 111 is not provided with the fourth sub-region 115.
[0061] Referring to Figures 4-5 In one embodiment, as shown in the drawings, the first boundary S1, at which the second region 131 is adjacent to the third region 132, extends along the first direction, the second boundary S2, at which the first sub-region 112 is adjacent to the third sub-region 114, extends along the first direction, and the first boundary S1 and the second boundary S2 are located on the same straight line; the third boundary S3, at which the fourth region 133 is adjacent to the third region 132, extends along the second direction, the fourth boundary S4, at which the first sub-region 112 is adjacent to the second sub-region 113, extends along the second direction, and the third boundary S3 and the fourth boundary S4 are located on the same straight line; wherein the second channel T2 and the fourth channel N2 constitute a touch unit in the first sub-region 112, and the planar region 110 comprises a plurality of touch units arranged along the first direction and the second direction, which facilitates the preparation and is conducive to improving the touch performance of the touch substrate 100. The first boundary S1, the second boundary S2, the third boundary S3 and the fourth boundary S4 are virtual lines for dividing regions.
[0062] Optionally, along the first direction, the lengths of the first sub-region 112, the third sub-region 114 and the fourth region 133 are equal; and along the second direction, the lengths of the first sub-region 112, the second sub-region 113 and the second region 131 are equal.
[0063] Preferably, along the first direction, the length of the first sub-region 112 is equal to the width of the fourth channel N2; and / or, along the first direction, the sum of the lengths of the third sub-region 114 and the fourth region 133 is equal to the width of the third channel N1. That is, the first sub-region 112 is divided by the boundary of the fourth channel N2, and one side boundary of the third sub-region 114 and one side boundary of the fourth region 133 are divided by the boundary of the third channel N1.
[0064] In some embodiments, the second channel T2 and the fourth channel N2 constitute a touch unit in the first sub-region 112, the area of the first sub-region 112 is S1, in order to ensure the touch effect, the sum of the areas of the third sub-region 114 and the fourth region 133 is S2, S1>S2≥0.5S1; the sum of the areas of the second sub-region 113 and the second region 131 is S3, S1>S3≥0.5S1, the sum of the areas of the third region 132 and the fourth sub-region 115 is S4, 0.3S1≥S4>0.
[0065] For example, S2 is 0.92S1, 0.9S1, 0.88S1, 0.85S1, 0.84S1, 0.8S1, 0.77S1, 0.73S1, 0.6S1, 0.66S1, or 0.5S1, etc.; S3 is 0.92S1, 0.9S1, 0.88S1, 0.85S1, 0.84S1, 0.8S1, 0.77S1, 0.73S1, 0.6S1, 0.66S1, or 0.5S1, etc.; S4 is 0.3S1, 0.28S1, 0.26S1, 0.24S1, 0.2S1, 0.18S1, 0.15S1, 0.1S1, or 0.08S1, etc.
[0066] In a specific embodiment, S2 is equal to S3, so as to ensure that the bending effects at the curved surface are the same.
[0067] Referring to Figure 6 In one embodiment, the first sub-electrode 41 in the first channel T1 includes a first target sub-electrode Q1 and a second target sub-electrode Q2 arranged along the first direction, the first target sub-electrode Q1 is at least partially located in the first sub-region 112, and the second target sub-electrode Q2 is partially located in the second region 131 and partially located in the second sub-region 113. The first target sub-electrode Q1 and the second target sub-electrode Q2 are connected by the conductive bridge 2 in the second sub-region 113, so as to avoid the conductive bridge 2 in the first channel T1 being arranged in the third region 132, which is equivalent to diverting the conductive bridge 2 originally arranged in the third region 132 to the second sub-region 113.
[0068] Preferably, the first target sub-electrode Q1 and the second target sub-electrode Q2 are connected by two conductive bridges 2 in the second sub-region 113, which is beneficial to reduce impedance and achieve impedance matching.
[0069] Referring to Figure 7 In one embodiment, the second channel T2 includes a fourth type of electrode d adjacent to the first channel T1, and the fourth type of electrode d is located in the same column as the first target sub-electrode Q1 and the second target sub-electrode Q2. That is, the first target sub-electrode Q1 and the second target sub-electrode Q2 occupy part of the space originally occupied by the fourth type of electrode d, so that the fourth type of electrode d is blocked in the first direction by the first target sub-electrode Q1.
[0070] Referring to Figures 6-7As shown, in one of the embodiments, in the first channel T1, the first electrode 4 includes the first type of electrode a, the second type of electrode b, and the third type of electrode c, the first channel T1 includes the first type of electrode a, the second type of electrode b, and the third type of electrode c arranged in the second direction in sequence, and the third type of electrode is located on the side of the second type of electrode b facing the second channel T2; in the second channel T2, the first electrode 4 includes the fourth type of electrode d, the fifth type of electrode e, and the sixth type of electrode f, and the second channel T2 further includes the fifth type of electrode e and the sixth type of electrode f, and the fifth type of electrode e is located between the fourth type of electrode d and the sixth type of electrode f.
[0071] In the first channel T1, the first electrode 4 includes the first type of electrode a, the second type of electrode b, and the third type of electrode c, and the division of the first electrode 4 is based on the different positions of the first electrode 4, i.e., the first type of electrode a, the second type of electrode b, and the third type of electrode c are respectively the first electrode 4 with different positions; similarly, in the second channel T2, the first electrode 4 includes the fourth type of electrode d, the fifth type of electrode e, and the sixth type of electrode f, and the division of the first electrode 4 is also based on the different positions of the first electrode 4, i.e., the fourth type of electrode d, the fifth type of electrode e, and the sixth type of electrode f are respectively the first electrode 4 with different positions.
[0072] Referring to Figure 6 As shown, the third type of electrode e includes the first target sub-electrode Q1 and the second target sub-electrode Q2, further includes the third target sub-electrode Q3 and the fourth target sub-electrode Q4, the third target sub-electrode Q3 is located in the third sub-region 132, and the third target sub-electrode Q3 is connected with the second target sub-electrode Q2; the fourth target sub-electrode Q4 is located in the third sub-region 114, and the fourth target sub-electrode Q4 is connected with the first target sub-electrode Q1. Among them, the first target sub-electrode Q1 passes through the first sub-region 112, the second target sub-electrode Q2 passes through the second sub-region 113, the first target sub-electrode Q1 and the second target sub-electrode Q2 are connected in the first direction through the conductive bridge 2, the second target sub-electrode Q2 is connected with the third target sub-electrode Q3, the first target sub-electrode Q1 is connected with the fourth target sub-electrode Q4, realizing the transmission of the touch signal of the third type of electrode c in the first direction, and avoiding the conductive bridge 2 of the third type of electrode c occupying the curved surface region 120.
[0073] Referring to Figure 6 As shown, in one of the embodiments, the third target sub-electrode Q3 is connected with the second target sub-electrode Q2 in the second direction to form the first combined electrode 42; the fourth target sub-electrode Q4 is connected with the first target sub-electrode Q1 in the second direction to form the second combined electrode 43, and the first combined electrode 42 and the second combined electrode 43 are connected through the conductive bridge 2 in the second sub-region 113.
[0074] Referring to Figure 7 As shown, in combination with Figure 5 andFigure 6 In one of the embodiments, the fourth type of electrode d includes a fifth target sub-electrode Q5 located in the first sub-region 112, the fifth target sub-electrode Q5 is adjacent to and spaced apart from the first target sub-electrode Q1, and part of the second electrode 5 of the fourth channel N2 is located between the fifth target sub-electrode Q5 and the first target sub-electrode Q1; the fifth type of electrode e further includes a sixth target sub-electrode Q6 located in the first sub-region 112, the fifth target sub-electrode Q5 is connected to the sixth target sub-electrode Q6. Specifically, since the first combined electrode 42 and the second combined electrode 43 occupy part of the space originally occupied by the fourth type of electrode d, the fourth type of electrode d is blocked in the first direction, therefore, connecting the fifth target sub-electrode Q5 to the sixth target sub-electrode Q6 can reduce the impedance and balance the impedance difference with other first touch channels.
[0075] Preferably, the fifth target sub-electrode Q5 and the sixth target sub-electrode Q6 are connected in the second direction.
[0076] Referring to Figure 6 In one of the embodiments, the first channel T1 further includes a ninth target sub-electrode Q9, the ninth target sub-electrode Q9 is at least partially located in the fourth region 133, and the ninth target sub-electrode Q9 is connected to the fourth target sub-electrode Q4.
[0077] Preferably, the ninth target sub-electrode Q9 and the second type of electrode b are located in the same column, and the ninth target sub-electrode Q9 is spaced apart from the second type of electrode b; part of the second electrode 5 in the fourth channel N2 is located between the ninth target sub-electrode Q9 and the second type of electrode b. Among them, since the fourth region 133 does not arrange the conductive bridge 2, the original conductive bridge 2 between the second type of electrode b and the ninth target sub-electrode Q9 is cancelled.
[0078] Preferably, the ninth target sub-electrode Q9 is partially located in the fourth region 133 and partially located in the third region 132.
[0079] Preferably, the ninth target sub-electrode Q9 and the fourth target sub-electrode Q4 are connected in the second direction, realizing the connection of the ninth target sub-electrode Q9 and other sub-electrodes in the first channel T1.
[0080] Referring to Figure 7 In one of the embodiments, the first channel T1 further includes a ninth target sub-electrode Q9, the ninth target sub-electrode Q9 is at least partially located in the fourth region 133, and the ninth target sub-electrode Q9 is connected to the fourth target sub-electrode Q4. Figure 5 and Figure 6In one embodiment, the second channel T2 further comprises a seventh target sub-electrode Q7 located in the second area 131, the seventh target sub-electrode Q7 is located on the side of the second target sub-electrode Q2 away from the first target sub-electrode Q1, and the seventh target sub-electrode Q7 is located in the same column as the first target sub-electrode Q1 and the second target sub-electrode Q2; the fifth type of electrode e further comprises an eighth target sub-electrode Q8, the eighth target sub-electrode Q8 is at least partially located in the second area 131, and the eighth target sub-electrode Q8 is connected to the seventh target sub-electrode Q7. Specifically, since the eighth target sub-electrode Q8 is separated from the first and second combination electrodes 42 and 43 in the first direction, the eighth target sub-electrode Q8 is connected to the seventh target sub-electrode Q7, thereby realizing the connection of the eighth target sub-electrode Q8 to other sub-electrodes in the second channel T2.
[0081] Preferably, the eighth target sub-electrode Q8 is connected to the seventh target sub-electrode Q7 through a first connecting line L1, and the first connecting line L1 is arranged in the same layer as the eighth target sub-electrode Q8 and the seventh target sub-electrode Q7.
[0082] Preferably, the side of the seventh target sub-electrode Q7 away from the planar area 110 is arc-shaped, the side of the eighth target sub-electrode Q8 away from the planar area 110 is arc-shaped, the first connecting line L1 is an arc line, and the end of the seventh target sub-electrode Q7 away from the planar area 110 is connected to the end of the eighth target sub-electrode Q8 away from the planar area 110 through the first connecting line L1. Further, the side of the seventh target sub-electrode Q7, the eighth target sub-electrode Q8, and the first connecting line L1 away from the planar area 110 are arc-shaped, and the arc radii are equal.
[0083] Preferably, in the first channel T1, two first sub-electrodes 41 adjacent in the second direction are connected in the fourth area 133. Specifically, since no conductive bridge 2 is arranged between the two first sub-electrodes 41 adjacent in the first direction in the fourth area 133, the two first sub-electrodes 41 adjacent in the second direction are connected, thereby realizing the connection of the first sub-electrodes 41 in the fourth area 133 to the first sub-electrodes 41 in the third sub-area 114 in the second direction.
[0084] Preferably, in the first channel T1, part of two first sub-electrodes 41 adjacent in the second direction are connected in the third sub-area 114 to reduce impedance.
[0085] Preferably, in the first channel T1, two first sub-electrodes 41 adjacent in the second direction are connected in the third sub-area 114 and the fourth area 133 to reduce impedance.
[0086] Preferably, the ratio of the area of the orthographic projection of the first target sub-electrode Q1 onto the substrate 1 to the area of the orthographic projection of the first sub-region 112 onto the substrate 1 is less than or equal to 15%, so as to minimize the occupancy of the first sub-region 112 and ensure the touch performance of the first sub-region 112. For example, the ratio of the area of the orthographic projection of the first target sub-electrode Q1 onto the substrate 1 to the area of the orthographic projection of the first sub-region 112 onto the substrate 1 is 1%, 2%, 3%, 5%, 10%, 12%, 13.5%, 15%, etc., and is not specifically limited.
[0087] Reference Figure 7 As shown, in one embodiment, in the second sub-region 113, the distance D1 between two adjacent conductive bridges 2 in the first direction is 350 micrometers to 2000 micrometers. Specifically, the conductive bridges 2 are arranged to avoid the second region 131, and in the second sub-region 113, the distance between two adjacent conductive bridges 2 in the first direction is partially compressed. For example, the distance between two adjacent conductive bridges 2 in the first direction is 350 micrometers, 500 micrometers, 800 micrometers, 1000 micrometers, 1500 micrometers, 2000 micrometers, etc., and is not specifically limited.
[0088] Preferably, in the second sub-region 113, the distance between two adjacent conductive bridges 2 corresponding to the same first electrode 4 gradually decreases along the second direction. Specifically, since the size of the second sub-region 113 gradually decreases along the second direction in the first direction, the distance between two adjacent conductive bridges 2 corresponding to the same first electrode 4 is gradually compressed along the second direction.
[0089] Preferably, in the second sub-region 113, the distance between two adjacent conductive bridges 2 corresponding to the sixth type electrode f is greater than the distance between two adjacent conductive bridges 2 corresponding to the fifth type electrode e.
[0090] In one embodiment, the density of conductive bridges 2 in the second sub-region 113 is greater than the density of conductive bridges 2 in the first sub-region 112; the density of conductive bridges 2 in the second sub-region 113 is greater than the density of conductive bridges 2 in the third sub-region 114. Specifically, conductive bridges 2 that would normally be located in the second and third sub-regions 131 and 132 are moved to the second sub-region 113, resulting in a higher density of conductive bridges 2 in the second sub-region 113 compared to other sub-regions.
[0091] Preferably, in the first channel T1, a portion of the conductive bridge 2 corresponding to the first sub-electrode 41 is located in the second sub-region 113. That is, the conductive bridge 2 connecting the first target sub-electrode Q1 and the second target sub-electrode Q2 is located in the second sub-region 113.
[0092] Reference Figure 10As shown, in one embodiment, the touch substrate 100 further has a frame area 170 surrounding the curved area 120, which can protect the display area and embody the mechanical performance of the touch substrate 100; meanwhile, the frame area 170 can be used to set relevant signal lines, facilitating the transmission of signals.
[0093] With reference to Figure 11 As shown, in one embodiment, the touch substrate 100 further includes a plurality of first touch leads 61 and a plurality of second touch leads 62, the first touch leads 61 are at least partially located in the frame area 170 and connected with corresponding first electrodes 4, the second touch leads 62 are at least partially located in the frame area 170 and connected with corresponding second electrodes 5, the orthographic projections of the first touch leads 61 and the second touch leads 62 on the substrate 1 do not overlap, and the second touch leads 62 are at least partially located on the side of the first touch leads 61 away from the flat area 110, which is conducive to reducing the signal interference between the first touch leads 61 and the second touch leads 62 and improving the touch performance.
[0094] In a specific embodiment, the same first touch channel T includes three first electrodes 4, which are connected with a corresponding first touch lead 61 after being connected in the frame area 170, thereby ensuring that the number of signal lines located in the frame area 170 is reduced, which is conducive to narrow frame; in addition, the three first electrodes 4 in the same first touch channel T are connected in the frame area 170, thereby ensuring that the signal lines of the three first electrodes 4 are consistent.
[0095] In addition, the first sub-electrodes 41 in the adjacent two first electrodes 4 in part of the first touch channels T are connected in the second direction, so that the two can transmit the same signal, and therefore, only one of the first sub-electrodes 41 needs to be connected in the frame area 170, if any two of the three first electrodes 4 are connected in the second direction through the first sub-electrode 41, then connecting any one of the first electrodes 4 with the first touch lead 61 in the frame area 170 can make the three first electrodes 4 in the same first touch channel T transmit the same signal.
[0096] For example, as shown, in combination with Figure 11 and Figure 6 and Figure 7 In the first channel T1, the first sub-electrode 41 in the first electrode a, the second electrode b and the third electrode c are connected in the second direction, so that the first touch lead 61 corresponding to the frame area 170 only needs to be connected to any one of them, thereby ensuring that the first electrode a, the second electrode b and the third electrode c transmit the same signal. In the second channel T2, since the fifth target sub-electrode Q5 in the fourth electrode d and the sixth target sub-electrode Q6 in the fifth electrode e are connected in the second direction, the fourth electrode d and the fifth electrode e have been connected, and thus, in the frame area 170, the fifth electrode e and the sixth electrode f can be connected to the corresponding first touch lead 61 after being connected by the connecting line, so as to make the fourth electrode d, the fifth electrode e and the sixth electrode f transmit the same signal.
[0097] With reference to Figure 11 In one embodiment, the touch substrate 100 further includes an isolation line 63, which is at least partially located in the frame area 170 and between the first touch lead 61 and the second touch lead 62, and is used to isolate the first touch lead 61 from the second touch lead 62 to avoid coupling between the first touch lead 61 and the second touch lead 62. The isolation line 63 can be grounded or connected to a fixed potential.
[0098] With reference to Figure 3 、 4 , 10, based on the same inventive concept, another embodiment of the present application further discloses a touch substrate 100, which includes a display area AA and a frame area 170 at least partially surrounding the display area AA, the display area AA includes at least one R corner area 160, the R corner area 160 includes adjacent arc corner areas 130 and a first area 111, the first area 111 is a plane; the arc corner area 130 is located between the first area 111 and the frame area 170.
[0099] The touch substrate 100 includes a plurality of first touch channels T extending in a first direction (such as the Y direction in the figure) and a plurality of second touch channels N extending in a second direction (such as the X direction in the figure), the first direction intersects the second direction; the first touch channel T includes at least one first electrode 4, the first electrode 4 includes a plurality of first sub-electrodes 41 spaced apart along the first direction, adjacent two first sub-electrodes 41 are connected by a conductive bridge 2, the conductive bridge 2 is insulated from the first electrode 4; the conductive bridge 2 located in the R corner area 160 is located in the first area 111.
[0100] Among them, the conductive bridge 2 located in the R corner area 160 is located in the first area 111, which can be understood as: the conductive bridge 2 located in the R corner area 160 is all located in the first area 111, and no conductive bridge 2 is arranged in the arc corner area 130.
[0101] The conductive bridge 2 located at the R corner area 160 is arranged at the first area 111, which is beneficial to improve the stress of the arc corner area 130, improve the film layer adhesion effect of the arc corner area 130, and avoid film layer peeling caused by stress concentration.
[0102] Referring to Figures 4-5 In one embodiment, the arc corner area 130 includes a second area 131, a third area 132, and a fourth area 133. The second area 131, the third area 132, and the fourth area 133 are sequentially adjacent along the circumference of the first area 111. The first curved area 140 is adjacent to the fourth area 133, and the second curved area 150 is adjacent to the second area 131.
[0103] Please continue to refer to Figures 5-9 The touch substrate 100 includes a plurality of first touch channels T extending in the first direction and a plurality of second touch channels N extending in the second direction. Each first touch channel T includes at least one first electrode 4, and each second touch channel N includes at least one second electrode 5. The plurality of first touch channels T includes a first channel T1 and a second channel T2 that are adjacent to each other. The first channel T1 is partially located in the first area 111, the second area 131, the third area 132, and the fourth area 133. The second channel T2 is partially located in the first area 111 and the second area 131. The plurality of second touch channels N includes a third channel N1 and a fourth channel N2 that are adjacent to each other. The third channel N1 is partially located in the first area 111, the second area 131, and the third area 132. The fourth channel N2 is partially located in the first area 111 and the fourth area 133, which ensures the normal transmission of touch signals in each area and the touch function is not affected.
[0104] Referring to Figures 6-9 In one embodiment, the second channel T2 does not overlap with the third area 132; the second channel T2 does not overlap with the fourth area 133; the third channel N1 does not overlap with the fourth area 133; the fourth channel N2 does not overlap with the second area 131, and the fourth channel N2 does not overlap with the third area 132. Among them, the second channel T2 does not need to pass through the third area 132 and the fourth area 133, the third channel N1 does not need to pass through the fourth area 133, and the fourth channel N2 does not need to pass through the second area 131 and the third area 132.
[0105] In one embodiment, the first touch channel T includes three first electrodes 4. In other embodiments, the number of first electrodes 4 in the first touch channel T can be two, four, or five, etc., which is not limited.
[0106] In one embodiment, the second touch channel N includes one second electrode 5, and the second electrode 5 is in a mesh shape, which is beneficial to reduce the resistance, improve the touch sensitivity, and improve the mechanical properties.
[0107] Referring to Figures 4-9As shown, in one embodiment, the first area 111 includes a first sub-area 112, a second sub-area 113 and a third sub-area 114, the second sub-area 113 is located between the first sub-area 112 and the second area 131, and the third sub-area 114 is located between the first sub-area 112 and the fourth area 133; the first channel T1 is partially located in the third sub-area 114, the first sub-area 112 and the second sub-area 113, the second channel T2 is partially located in the first sub-area 112 and the second sub-area 113, the third channel N1 is partially located in the second sub-area 113, and the fourth channel N2 is partially located in the first sub-area 112 and the third sub-area 114. Among them, the first channel T1 passes through the first sub-area 112 and the second sub-area 113 to realize signal transmission.
[0108] Preferably, the partially conductive bridge 2 in the first channel T1 is located in the second sub-area 113. Thus, the conductive bridge 2 in the first channel T1 is avoided to be arranged in the third area 132.
[0109] Referring to Figures 4-5 As shown, in one embodiment, the first boundary S1 between the second area 131 and the third area 132 extends along the first direction, the second boundary S2 between the first sub-area 112 and the third sub-area 114 extends along the first direction, and the first boundary S1 and the second boundary S2 are located on the same straight line; the third boundary S3 between the fourth area 133 and the third area 132 extends along the second direction, the fourth boundary S4 between the first sub-area 112 and the second sub-area 113 extends along the second direction, and the third boundary S3 and the fourth boundary S4 are located on the same straight line; among them, the second channel T2 and the fourth channel N2 form a touch control unit in the first sub-area 112, and the planar area 110 includes a plurality of touch control units arranged along the first direction and the second direction, which is convenient for preparation and is conducive to improving the touch control performance of the touch control substrate 100. Among them, the first boundary S1, the second boundary S2, the third boundary S3 and the fourth boundary S4 are virtual lines for area division.
[0110] Optionally, along the first direction, the lengths of the first sub-area 112, the third sub-area 114 and the fourth area 133 are equal; along the second direction, the lengths of the first sub-area 112, the second sub-area 113 and the second area 131 are equal.
[0111] Preferably, along the first direction, the length of the first sub-area 112 is equal to the width of the fourth channel N2; and / or, along the first direction, the sum of the lengths of the third sub-area 114 and the fourth area 133 is equal to the width of the third channel N1. That is, the first sub-area 112 is divided by the boundary of the fourth channel N2, and one side boundary of the third sub-area 114 and one side boundary of the fourth area 133 are divided by the boundary of the third channel N1.
[0112] In some embodiments, the second channel T2 and the fourth channel N2 constitute a touch unit in the first sub-region 112, the area of the first sub-region 112 is S1, in order to ensure the touch effect, the sum of the areas of the third sub-region 114 and the fourth region 133 is S2, S1>S2≥0.5S1; the sum of the areas of the second sub-region 113 and the second region 131 is S3, S1>S3≥0.5S1, the sum of the areas of the third region 132 and the fourth sub-region 115 is S4, 0.3S1≥S4>0.
[0113] For example, S2 is 0.92S1, 0.9S1, 0.88S1, 0.85S1, 0.84S1, 0.8S1, 0.77S1, 0.73S1, 0.6S1, 0.66S1 or 0.5S1, etc.; S3 is 0.92S1, 0.9S1, 0.88S1, 0.85S1, 0.84S1, 0.8S1, 0.77S1, 0.73S1, 0.6S1, 0.66S1 or 0.5S1, etc.; S4 is 0.3S1, 0.28S1, 0.26S1, 0.24S1, 0.2S1, 0.18S1, 0.15S1, 0.1S1 or 0.08S1, etc.
[0114] In a specific embodiment, S2 is equal to S3, so as to ensure that the bending effects at the curved surfaces are the same.
[0115] Referring to Figure 6 In one of the embodiments, the first sub-electrode 41 in the first channel T1 includes a first target sub-electrode Q1 and a second target sub-electrode Q2 arranged along the first direction, the first target sub-electrode Q1 is at least partially located in the first sub-region 112, and the second target sub-electrode Q2 is partially located in the second region 131 and partially located in the second sub-region 113, the first target sub-electrode Q1 and the second target sub-electrode Q2 are connected through the conductive bridge 2 in the second sub-region 113, so as to avoid the conductive bridge 2 in the first channel T1 being arranged in the third region 132, which is equivalent to diverting the conductive bridge 2 originally arranged in the third region 132 to the second sub-region 113.
[0116] Preferably, the first target sub-electrode Q1 and the second target sub-electrode Q2 are connected through two conductive bridges 2 in the second sub-region 113, which is conducive to reducing the impedance and achieving impedance matching.
[0117] Referring to Figure 7 In one of the embodiments, the second channel T2 includes a fourth type of electrode d adjacent to the first channel T1, and the fourth type of electrode d is located in the same column as the first target sub-electrode Q1 and the second target sub-electrode Q2. In other words, the first target sub-electrode Q1 and the second target sub-electrode Q2 occupy part of the space originally occupied by the fourth type of electrode d, so that the fourth type of electrode d is blocked in the first direction by the first target sub-electrode Q1.
[0118] Referring to Figures 6-7 In one of the embodiments, as shown in the figure, in the first channel T1, the first electrode 4 includes the first type electrode a, the second type electrode b and the third type electrode c, the first channel T1 includes the first type electrode a, the second type electrode b and the third type electrode c arranged in the second direction in sequence, and the third type electrode c is located on the side of the second type electrode b facing the second channel T2; in the second channel T2, the first electrode 4 includes the fourth type electrode d, the fifth type electrode e and the sixth type electrode f, and the second channel T2 further includes the fifth type electrode e and the sixth type electrode f, and the fifth type electrode e is located between the fourth type electrode d and the sixth type electrode f.
[0119] Referring to Figure 6 As shown in the figure, the third type electrode c includes the first target sub-electrode Q1 and the second target sub-electrode Q2, and further includes the third target sub-electrode Q3 and the fourth target sub-electrode Q4, the third target sub-electrode Q3 is located in the third sub-region 132, and the third target sub-electrode Q3 is connected with the second target sub-electrode Q2; the fourth target sub-electrode Q4 is located in the third sub-region 114, and the fourth target sub-electrode Q4 is connected with the first target sub-electrode Q1. Among them, the first target sub-electrode Q1 passes through the first sub-region 112, the second target sub-electrode Q2 passes through the second sub-region 113, the first target sub-electrode Q1 and the second target sub-electrode Q2 are connected in the first direction through the conductive bridge 2, the second target sub-electrode Q2 is connected with the third target sub-electrode Q3, the first target sub-electrode Q1 is connected with the fourth target sub-electrode Q4, realizing the transmission of the touch signal of the third type electrode c in the first direction, and avoiding the conductive bridge 2 of the third type electrode c occupying the curved surface region 120.
[0120] Referring to Figure 6 As shown in the figure, in one of the embodiments, the third target sub-electrode Q3 is connected with the second target sub-electrode Q2 in the second direction to form the first combined electrode 42; the fourth target sub-electrode Q4 is connected with the first target sub-electrode Q1 in the second direction to form the second combined electrode 43, and the first combined electrode 42 and the second combined electrode 43 are connected through the conductive bridge 2 in the second sub-region 113.
[0121] Referring to Figure 7 As shown in the figure, in combination with Figure 5 and Figure 6In one of the embodiments, the fourth type of electrode d includes a fifth target sub-electrode Q5 located in the first sub-region 112, the fifth target sub-electrode Q5 is adjacent to and spaced apart from the first target sub-electrode Q1, and part of the second electrode 5 of the fourth channel N2 is located between the fifth target sub-electrode Q5 and the first target sub-electrode Q1; the fifth type of electrode e further includes a sixth target sub-electrode Q6 located in the first sub-region 112, the fifth target sub-electrode Q5 is connected to the sixth target sub-electrode Q6. Specifically, since the first combined electrode 42 and the second combined electrode 43 occupy part of the space originally occupied by the fourth type of electrode d, the fourth type of electrode d is blocked in the first direction, and therefore, connecting the fifth target sub-electrode Q5 to the sixth target sub-electrode Q6 can reduce the impedance and balance the impedance difference with other first touch channels.
[0122] Preferably, the fifth target sub-electrode Q5 and the sixth target sub-electrode Q6 are connected in the second direction.
[0123] Referring to Figure 6 In one of the embodiments, the first channel T1 further includes a ninth target sub-electrode Q9, the ninth target sub-electrode Q9 is at least partially located in the fourth region 133, and the ninth target sub-electrode Q9 is connected to the fourth target sub-electrode Q4.
[0124] Preferably, the ninth target sub-electrode Q9 and the second type of electrode b are located in the same column, and the ninth target sub-electrode Q9 is spaced apart from the second type of electrode b; part of the second electrode 5 in the fourth channel N2 is located between the ninth target sub-electrode Q9 and the second type of electrode b. Since no conductive bridge 2 is provided in the fourth region 133, the original conductive bridge 2 between the second type of electrode b and the ninth target sub-electrode Q9 is cancelled.
[0125] Preferably, the ninth target sub-electrode Q9 is partially located in the fourth region 133 and partially located in the third region 132.
[0126] Preferably, the ninth target sub-electrode Q9 and the fourth target sub-electrode Q4 are connected in the second direction, realizing the connection of the ninth target sub-electrode Q9 with other sub-electrodes in the first channel T1.
[0127] Referring to Figure 7 In one of the embodiments, the first channel T1 further includes a ninth target sub-electrode Q9, the ninth target sub-electrode Q9 is at least partially located in the fourth region 133, and the ninth target sub-electrode Q9 is connected to the fourth target sub-electrode Q4. Figure 5 and Figure 6In one embodiment, the second channel T2 further comprises a seventh target sub-electrode Q7 located in the second area 131, the seventh target sub-electrode Q7 is located on the side of the second target sub-electrode Q2 away from the first target sub-electrode Q1, and the seventh target sub-electrode Q7 is located in the same column as the first target sub-electrode Q1 and the second target sub-electrode Q2; the fifth type of electrode e further comprises an eighth target sub-electrode Q8, the eighth target sub-electrode Q8 is at least partially located in the second area 131, and the eighth target sub-electrode Q8 is connected with the seventh target sub-electrode Q7. Specifically, since the eighth target sub-electrode Q8 is separated from the first and second combined electrodes 42 and 43 in the first direction, the eighth target sub-electrode Q8 is connected with the seventh target sub-electrode Q7, thereby realizing the connection of the eighth target sub-electrode Q8 with other sub-electrodes in the second channel T2.
[0128] Preferably, the eighth target sub-electrode Q8 is connected with the seventh target sub-electrode Q7 through a first connecting line L1, and the first connecting line L1 is arranged in the same layer as the eighth target sub-electrode Q8 and the seventh target sub-electrode Q7.
[0129] Preferably, the side of the seventh target sub-electrode Q7 away from the planar area 110 is arc-shaped, the side of the eighth target sub-electrode Q8 away from the planar area 110 is arc-shaped, the first connecting line L1 is an arc line, and the end of the seventh target sub-electrode Q7 away from the planar area 110 is connected with the end of the eighth target sub-electrode Q8 away from the planar area 110 through the first connecting line L1. Further, the side of the seventh target sub-electrode Q7, the eighth target sub-electrode Q8 and the first connecting line L1 away from the planar area 110 are arc-shaped, and the arc radii are equal.
[0130] Preferably, in the first channel T1, two first sub-electrodes 41 adjacent in the second direction are connected in the fourth area 133. Specifically, since no conductive bridge 2 is arranged between the two first sub-electrodes 41 adjacent in the first direction in the fourth area 133, the two first sub-electrodes 41 adjacent in the second direction are connected, thereby realizing the connection of the first sub-electrodes 41 in the fourth area 133 with the first sub-electrodes 41 in the third sub-area 114 in the second direction.
[0131] Preferably, in the first channel T1, part of two first sub-electrodes 41 adjacent in the second direction are connected in the third sub-area 114, so as to reduce impedance.
[0132] Preferably, in the first channel T1, two first sub-electrodes 41 adjacent in the second direction are connected in the third sub-area 114 and the fourth area 133, so as to reduce impedance.
[0133] Preferably, the ratio of the area of the orthogonal projection of the first target sub-electrode Q1 on the substrate 1 to the area of the orthogonal projection of the first sub-region 112 on the substrate 1 is less than or equal to 15% to minimize the occupation of the first sub-region 112 to ensure the touch performance of the first sub-region 112. Illustratively, the ratio of the area of the orthogonal projection of the first target sub-electrode Q1 on the substrate 1 to the area of the orthogonal projection of the first sub-region 112 on the substrate 1 is 1%, 2%, 3%, 5%, 10%, 12%, 13.5%, 15%, etc. without limitation.
[0134] Referring to Figure 7 In one embodiment, the distance D1 between two conductive bridges 2 adjacent in the first direction in the second sub-region 113 is 350 microns-2000 microns. Specifically, the conductive bridges 2 are arranged away from the second region 131, and in the second sub-region 113, the distance between the two conductive bridges 2 adjacent in the first direction is compressed. Illustratively, the distance between the two conductive bridges 2 adjacent in the first direction is 350 microns, 500 microns, 800 microns, 1000 microns, 1500 microns, 2000 microns, etc. without limitation.
[0135] Preferably, in the second sub-region 113, the distance between the two conductive bridges 2 adjacent in the second direction corresponding to the same first electrode 4 gradually decreases. Specifically, since the size of the second sub-region 113 in the first direction gradually decreases in the second direction, the distance between the two conductive bridges 2 adjacent in the second direction corresponding to the same first electrode 4 is gradually compressed.
[0136] Preferably, in the second sub-region 113, the distance between the two conductive bridges 2 adjacent corresponding to the sixth type of electrode f is greater than the distance between the two conductive bridges 2 adjacent corresponding to the fifth type of electrode e.
[0137] In one embodiment, the density of the conductive bridges 2 in the second sub-region 113 is greater than the density of the conductive bridges 2 in the first sub-region 112; the density of the conductive bridges 2 in the second sub-region 113 is greater than the density of the conductive bridges 2 in the third sub-region 114. The conductive bridges 2 originally arranged in the second region 131 and the third region 132 are transferred to the second sub-region 113, resulting in the density of the conductive bridges 2 in the second sub-region 113 being greater than the density of the conductive bridges 2 in other regions.
[0138] Preferably, in the first channel T1, the part of the conductive bridges 2 corresponding to the first sub-electrode 41 is located in the second sub-region 113. That is, the conductive bridges 2 connecting the first target sub-electrode Q1 and the second target sub-electrode Q2 are located in the second sub-region 113.
[0139] Referring to Figure 11As shown, in one embodiment, the touch substrate 100 further comprises a plurality of first touch lead lines 61 and a plurality of second touch lead lines 62, the first touch lead lines 61 are at least partially located in the frame area 170 and connected with corresponding first electrodes 4, the second touch lead lines 62 are at least partially located in the frame area 170 and connected with corresponding second electrodes 5, the first touch lead lines 61 and the second touch lead lines 62 have no overlapping in the orthographic projection on the substrate 1, and the second touch lead lines 62 are at least partially located on the side of the first touch lead lines 61 away from the plane area 110, which is beneficial to reduce the signal interference between the first touch lead lines 61 and the second touch lead lines 62 and improve the touch performance.
[0140] In a specific embodiment, the same first touch channel T comprises three first electrodes 4, the three first electrodes 4 are connected after being connected in the frame area 170 and connected with a corresponding first touch lead line 61, so as to ensure that the number of signal lines located in the frame area 170 is reduced, which is beneficial to narrow the frame; in addition, the three first electrodes 4 in the same first touch channel T are connected in the frame area 170, so as to ensure that the signal lines of the three first electrodes 4 are consistent.
[0141] In addition, the first sub-electrodes 41 in the adjacent two first electrodes 4 in part of the first touch channels T are connected in the second direction, so that the two can transmit the same signal, and therefore only one of the first sub-electrodes 41 needs to be connected in the frame area 170, if any two of the three first electrodes 4 are connected in the second direction through the first sub-electrode 41, connecting any one of the first electrodes 4 with the first touch lead line 61 in the frame area 170 can make the three first electrodes 4 in the same first touch channel T transmit the same signal.
[0142] For example, as shown, in combination with Figure 11 and Figure 6 and Figure 7 In the first channel T1, the first sub-electrodes 41 in the first type electrodes a, the second type electrodes b and the third type electrodes c are connected in the second direction, so that the corresponding first touch lead line 61 in the frame area 170 only needs to be connected with any one of them, so as to ensure that the first type electrodes a, the second type electrodes b and the third type electrodes c transmit the same signal. In the second channel T2, since the fifth target sub-electrode Q5 in the fourth type electrodes d and the sixth target sub-electrode Q6 in the fifth type electrodes e are connected in the second direction, the fourth type electrodes d and the fifth type electrodes e have been connected, and therefore, in the frame area 170, the fifth type electrodes e and the sixth type electrodes f are connected through the connecting line and then connected with the corresponding first touch lead line 61, so as to make the fourth type electrodes d, the fifth type electrodes e and the sixth type electrodes f transmit the same signal.
[0143] Referring to Figure 11As shown, in one embodiment, the touch substrate 100 further comprises an isolation line 63, the isolation line 63 is at least partially located in the frame area 170 and between the first touch lead 61 and the second touch lead 62, the isolation line 63 is used to isolate the first touch lead 61 and the second touch lead 62, to avoid the coupling between the first touch lead 61 and the second touch lead 62. Wherein, the isolation line 63 can be grounded or connected to a fixed potential.
[0144] Based on the same inventive concept, another embodiment of the present application further discloses a display module, which comprises the touch substrate 100 in the above embodiments.
[0145] The display module provided by the embodiment can effectively improve the stress of the curved area 120, improve the film layer adhesion effect of the curved area 120, and avoid film layer peeling.
[0146] Based on the same inventive concept, another embodiment of the present application further discloses a display device, which comprises the display module in the above embodiments. Further, the display device comprises a mobile phone, a VR device, a computer, a television, a vehicle-mounted display device, etc.
[0147] Although the present application has been described in conjunction with the specific embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the foregoing description.
[0148] It should be noted that some embodiments of the present application have been described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in a different order and still achieve desirable results. Additionally, the process depicted in the figures does not necessarily require the particular order shown, or sequential order to achieve the desired results. In certain implementations, multitasking and parallel processing can be advantageous.
[0149] The embodiments of the present application are intended to cover all such alternatives, modifications and variations as falling within the scope of the appended claims. Accordingly, any and all such modifications, variations or equivalents that fall within the spirit and scope of the embodiments of the present application are intended to be included herein.
Claims
1. A touch substrate, characterized in that, The touch substrate includes a planar area and a curved area at least partially surrounding the planar area; the touch substrate further includes: A substrate, and a touch bridging layer, an insulating layer and a touch electrode layer located on the substrate, wherein the insulating layer is located between the touch bridging layer and the touch electrode layer; The touch electrode layer includes a plurality of first electrodes extending along a first direction and a plurality of second electrodes extending along a second direction, the first direction intersecting the second direction; the touch bridging layer includes a conductive bridge; the first electrode includes a plurality of first sub-electrodes spaced apart along the first direction, the insulating layer is provided with vias, and two adjacent first sub-electrodes are connected to the conductive bridge through the vias; Wherein, the touch electrode layer is located in the planar area and the curved area, and the conductive bridge is located in the planar area; and / or, the via is located in the planar area.
2. The touch substrate according to claim 1, characterized in that, The curved surface region includes at least one first curved surface region, at least one second curved surface region, and at least one arc corner region, wherein the first curved surface region, the arc corner region, and the second curved surface region are sequentially adjacent to each other, wherein the first curved surface region is located on one side of the planar region and extends along the first direction, and the second curved surface region is located on the other side of the planar region and extends along the second direction. Preferably, the curved surface region surrounds the planar region; Preferably, the first electrode is a touch driving electrode and the second electrode is a touch sensing electrode; or, the first electrode is a touch sensing electrode and the second electrode is a touch driving electrode.
3. The touch substrate according to claim 2, characterized in that, The planar area includes at least one first area adjacent to the arc corner area. The touch substrate has at least one R-corner area, the R-corner area includes the first area and the arc corner area, the arc corner area includes a second area, a third area and a fourth area. Along the circumference of the first area, the second area, the third area and the fourth area are sequentially adjacent. The first curved surface area is adjacent to the fourth area, and the second curved surface area is adjacent to the second area. The touch substrate includes a plurality of first touch channels extending along the first direction and a plurality of second touch channels extending along the second direction. Each first touch channel includes at least one first electrode, and each second touch channel includes at least one second electrode. The plurality of first touch channels include adjacent first channels and second channels. The first channels are partially located in the first region, the second region, the third region, and the fourth region, and the second channels are partially located in the first region and the second region. The plurality of second touch channels include adjacent third channels and fourth channels. The third channels are partially located in the first region, the second region, and the third region, and the fourth channels are partially located in the first region and the fourth region.
4. The touch substrate as described in claim 3, characterized in that, The second channel does not overlap with the third area; the second channel does not overlap with the fourth area; the third channel does not overlap with the fourth area; the fourth channel does not overlap with the second area, and the fourth channel does not overlap with the third area; Preferably, the first touch channel includes three of the first electrodes; Preferably, the second touch channel includes a second electrode, the orthographic projection of which on the substrate is a mesh.
5. The touch substrate according to claim 3, characterized in that, The first area includes a first sub-area, a second sub-area, and a third sub-area. The second sub-area is located between the first sub-area and the second area, and the third sub-area is located between the first sub-area and the fourth area. The first channel portion is located in the third sub-region, the first sub-region, and the second sub-region; the second channel portion is located in the first sub-region and the second sub-region; the third channel portion is located in the second sub-region; and the fourth channel portion is located in the first sub-region and the third sub-region. Preferably, a portion of the conductive bridge in the first channel is located in the second sub-region.
6. The touch substrate as described in claim 5, characterized in that, The first boundary of the second region adjacent to the third region extends along the first direction, the second boundary of the first sub-region adjacent to the third sub-region extends along the first direction, and the first boundary and the second boundary are on the same straight line; the third boundary of the fourth region adjacent to the third region extends along the second direction, the fourth boundary of the first sub-region adjacent to the second sub-region extends along the second direction, and the third boundary and the fourth boundary are on the same straight line. The second channel and the fourth channel form a touch unit in the first sub-area, and the planar area includes a plurality of the touch units arranged along the first direction and the second direction.
7. The touch substrate as described in claim 5, characterized in that, Along the first direction, the lengths of the first sub-region, the third sub-region, and the fourth region are equal; along the second direction, the lengths of the first sub-region, the second sub-region, and the second region are equal. Preferably, along the first direction, the length of the first sub-region is equal to the width of the fourth channel; and / or, along the first direction, the sum of the lengths of the third sub-region and the fourth region is equal to the width of the third channel.
8. The touch substrate according to claim 5, characterized in that, The first sub-electrode in the first channel includes a first target sub-electrode and a second target sub-electrode arranged along the first direction. The first target sub-electrode is at least partially located in the first sub-region, and the second target sub-electrode is partially located in the second region and partially located in the second sub-region. The first target sub-electrode and the second target sub-electrode are connected through the conductive bridge in the second sub-region. Preferably, the first target sub-electrode and the second target sub-electrode are connected through two conductive bridges in the second sub-region; Preferably, the second channel includes a fourth type of electrode adjacent to the first channel, and the fourth type of electrode is located in the same column as the first target sub-electrode and the second target sub-electrode; Preferably, in the first channel, the first electrode includes a first type of electrode, a second type of electrode, and a third type of electrode, and the first channel includes the first type of electrode, the second type of electrode, and the third type of electrode arranged sequentially in the second direction, with the third type of electrode located on the side of the second type of electrode facing the second channel; in the second channel, the first electrode includes the fourth type of electrode, a fifth type of electrode, and a sixth type of electrode, and the second channel also includes the fifth type of electrode and the sixth type of electrode, with the fifth type of electrode located between the fourth type of electrode and the sixth type of electrode; The third type of electrode includes the first target sub-electrode and the second target sub-electrode, and also includes a third target sub-electrode and a fourth target sub-electrode. The third target sub-electrode is located in the third region and is connected to the second target sub-electrode. The fourth target sub-electrode is located in the third sub-region and is connected to the first target sub-electrode. Preferably, the third target sub-electrode and the second target sub-electrode are connected in the second direction to form a first combined electrode; the fourth target sub-electrode and the first target sub-electrode are connected in the second direction to form a second combined electrode, and the first combined electrode and the second combined electrode are connected through the conductive bridge in the second sub-region; Preferably, the fourth type of electrode includes a fifth target sub-electrode located in the first sub-region, the fifth target sub-electrode being adjacent to and spaced apart from the first target sub-electrode, and a portion of the second electrode of the fourth channel being located between the fifth target sub-electrode and the first target sub-electrode; the fifth type of electrode also includes a sixth target sub-electrode located in the first sub-region, the fifth target sub-electrode being connected to the sixth target sub-electrode; Preferably, the fifth target sub-electrode and the sixth target sub-electrode are connected in the second direction; Preferably, the first channel further includes a ninth target sub-electrode, the ninth target sub-electrode being at least partially located in the fourth region, and the ninth target sub-electrode being connected to the fourth target sub-electrode; Preferably, the ninth target sub-electrode and the second type of electrode are located in the same column, and the ninth target sub-electrode and the second type of electrode are spaced apart; a portion of the second electrode in the fourth channel is located between the ninth target sub-electrode and the second type of electrode; Preferably, the ninth target sub-electrode is partially located in the fourth region and partially located in the third region; Preferably, the ninth target sub-electrode and the fourth target sub-electrode are connected in the second direction; Preferably, the second channel further includes a seventh target sub-electrode located in the second region, the seventh target sub-electrode being located on the side of the second target sub-electrode away from the first target sub-electrode, and the seventh target sub-electrode being located in the same column as the first target sub-electrode and the second target sub-electrode; the fifth type of electrode further includes an eighth target sub-electrode, the eighth target sub-electrode being at least partially located in the second region, and the eighth target sub-electrode being connected to the seventh target sub-electrode; Preferably, the eighth target sub-electrode and the seventh target sub-electrode are connected by a first connecting line, and the first connecting line is disposed in the same layer as the eighth target sub-electrode and the seventh target sub-electrode; Preferably, the side of the seventh target sub-electrode away from the planar region is arc-shaped, the side of the eighth target sub-electrode away from the planar region is arc-shaped, the first connecting line is arc-shaped, and the end of the seventh target sub-electrode away from the planar region and the end of the eighth target sub-electrode away from the planar region are connected by the first connecting line. Preferably, in the first channel, two first sub-electrodes located in the fourth region and adjacent in the second direction are connected; Preferably, in the first channel, two first sub-electrodes located in the third sub-region and partially adjacent in the second direction are connected; Preferably, in the first channel, two sub-first sub-electrodes located in the third sub-region and the fourth region that are adjacent in the second direction are connected along the second direction; Preferably, the ratio of the area of the orthographic projection of the first target sub-electrode onto the substrate to the area of the orthographic projection of the first sub-region onto the substrate is less than or equal to 15%. Preferably, in the second sub-region, the distance between two adjacent conductive bridges in the first direction is 350 micrometers to 2000 micrometers; Preferably, in the second sub-region, along the second direction, the distance between two adjacent conductive bridges corresponding to the same first electrode gradually decreases; Preferably, in the second sub-region, the distance between two adjacent conductive bridges corresponding to the sixth type of electrode is greater than the distance between two adjacent conductive bridges corresponding to the fifth type of electrode.
9. The touch substrate according to any one of claims 5-8, characterized in that, The density of conductive bridges in the second sub-region is greater than the density of conductive bridges in the first sub-region; the density of conductive bridges in the second sub-region is greater than the density of conductive bridges in the third sub-region. Preferably, in the first channel, the portion of the conductive bridge corresponding to the first sub-electrode is located in the second sub-region.
10. The touch substrate according to claim 1, characterized in that, The touch substrate also has a border area that surrounds the curved surface area; Preferably, the touch substrate further includes a plurality of first touch leads and a plurality of second touch leads, wherein the first touch leads are at least partially located in the frame area and connected to the corresponding first electrode, and the second touch leads are at least partially located in the frame area and connected to the corresponding second electrode. The orthographic projections of the first touch leads and the second touch leads on the substrate do not overlap, and the second touch leads are at least partially located on the side of the first touch leads away from the planar area. Preferably, the touch substrate further includes an isolation line, which is at least partially located in the border area and between the first touch lead and the second touch lead.
11. A touch substrate, characterized in that, It includes a display area and a border area that at least partially surrounds the display area. The display area includes at least one rounded corner area, which includes an adjacent arc corner area and a first area, wherein the first area is a plane. The arc corner area is located between the first area and the border area. The touch substrate includes multiple first touch channels extending along a first direction and multiple second touch channels extending along a second direction, the first direction intersecting the second direction; each first touch channel includes at least one first electrode, each first electrode including multiple first sub-electrodes spaced apart along the first direction, two adjacent first sub-electrodes being connected by a conductive bridge, the conductive bridge being insulated from the first electrode by a different layer; The conductive bridge located in the R-corner region is located in the first region.
12. The touch substrate as described in claim 11, characterized in that, The arc-shaped area includes a second area, a third area, and a fourth area. Along the circumference of the first area, the second area, the third area, and the fourth area are sequentially adjacent to each other. The plurality of first touch channels include adjacent first channels and second channels, wherein the first channels are partially located in the first area, the second area, the third area and the fourth area, and the second channels are partially located in the first area and the second area; the plurality of second touch channels include adjacent third channels and fourth channels, wherein the third channels are partially located in the first area, the second area and the third area, and the fourth channels are partially located in the first area and the fourth area.
13. The touch substrate as described in claim 12, characterized in that, The second channel does not overlap with the third area; the second channel does not overlap with the fourth area; the third channel does not overlap with the fourth area; the fourth channel does not overlap with the second area, and the fourth channel does not overlap with the third area; Preferably, the first touch channel includes three of the first electrodes; Preferably, the second touch channel includes a second electrode, which is a mesh. Preferably, the touch substrate further includes: A substrate, a touch bridging layer, an insulating layer, and a touch electrode layer are located on the substrate, the insulating layer being located between the touch bridging layer and the touch electrode layer; the touch electrode layer includes a first touch channel and a second touch channel, the touch bridging layer includes the conductive bridge; the insulating layer is provided with vias, and two adjacent first sub-electrodes are connected to the conductive bridge through the vias.
14. The touch substrate as described in claim 13, characterized in that, The first area includes a first sub-area, a second sub-area, and a third sub-area. The second sub-area is located between the first sub-area and the second area, and the third sub-area is located between the first sub-area and the fourth area. The first channel portion is located in the third sub-region, the first sub-region, and the second sub-region; the second channel portion is located in the first sub-region and the second sub-region; the third channel portion is located in the second sub-region; and the fourth channel portion is located in the first sub-region and the third sub-region. A portion of the conductive bridge in the first channel is located in the second sub-region.
15. The touch substrate as described in claim 14, characterized in that, The first boundary of the second region adjacent to the third region extends along the first direction, the second boundary of the first sub-region adjacent to the third sub-region extends along the first direction, and the first boundary and the second boundary are on the same straight line; the third boundary of the fourth region adjacent to the third region extends along the second direction, the fourth boundary of the first sub-region adjacent to the second sub-region extends along the second direction, and the third boundary and the fourth boundary are on the same straight line. The second channel and the fourth channel form a touch unit in the first sub-area, and the planar area includes a plurality of the touch units arranged along the first direction and the second direction.
16. The touch substrate as described in claim 14, characterized in that, Along the first direction, the lengths of the first sub-region, the third sub-region, and the fourth region are equal; along the second direction, the lengths of the first sub-region, the second sub-region, and the second region are equal. Preferably, along the first direction, the length of the first sub-region is equal to the width of the fourth channel; and / or, along the first direction, the sum of the lengths of the third sub-region and the fourth region is equal to the width of the third channel.
17. The touch substrate as claimed in claim 14, characterized in that, The first sub-electrode in the first channel includes a first target sub-electrode and a second target sub-electrode arranged along the first direction. The first target sub-electrode is at least partially located in the first sub-region, and the second target sub-electrode is partially located in the second region and partially located in the second sub-region. The first target sub-electrode and the second target sub-electrode are connected through the conductive bridge in the second sub-region. Preferably, the first target sub-electrode and the second target sub-electrode are connected through two conductive bridges in the second sub-region; Preferably, the second channel includes a fourth type of electrode adjacent to the first channel, and the fourth type of electrode is located in the same column as the first target sub-electrode and the second target sub-electrode; Preferably, in the first channel, the first electrode includes a first type of electrode, a second type of electrode, and a third type of electrode, and the first channel includes the first type of electrode, the second type of electrode, and the third type of electrode arranged sequentially in the second direction, with the third type of electrode located on the side of the second type of electrode facing the second channel; in the second channel, the first electrode includes the fourth type of electrode, a fifth type of electrode, and a sixth type of electrode, and the second channel also includes the fifth type of electrode and the sixth type of electrode, with the fifth type of electrode located between the fourth type of electrode and the sixth type of electrode; The third type of electrode includes the first target sub-electrode and the second target sub-electrode, and also includes a third target sub-electrode and a fourth target sub-electrode. The third target sub-electrode is located in the third region and is connected to the second target sub-electrode. The fourth target sub-electrode is located in the third sub-region and is connected to the first target sub-electrode. Preferably, the third target sub-electrode and the second target sub-electrode are connected in the second direction to form a first combined electrode; the fourth target sub-electrode and the first target sub-electrode are connected in the second direction to form a second combined electrode, and the first combined electrode and the second combined electrode are connected through the conductive bridge in the second sub-region; Preferably, the fourth type of electrode includes a fifth target sub-electrode located in the first sub-region, the fifth target sub-electrode being adjacent to and spaced apart from the first target sub-electrode, and a portion of the second electrode of the fourth channel being located between the fifth target sub-electrode and the first target sub-electrode; the fifth type of electrode also includes a sixth target sub-electrode located in the first sub-region, the fifth target sub-electrode being connected to the sixth target sub-electrode; Preferably, the fifth target sub-electrode and the sixth target sub-electrode are connected in the second direction; Preferably, the first channel further includes a ninth target sub-electrode, the ninth target sub-electrode being at least partially located in the fourth region, and the ninth target sub-electrode being connected to the fourth target sub-electrode; Preferably, the ninth target sub-electrode and the second type of electrode are located in the same column, and the ninth target sub-electrode and the second type of electrode are spaced apart; a portion of the second electrode in the fourth channel is located between the ninth target sub-electrode and the second type of electrode; Preferably, the ninth target sub-electrode is partially located in the fourth region and partially located in the third region; Preferably, the ninth target sub-electrode and the fourth target sub-electrode are connected in the second direction; Preferably, the second channel further includes a seventh target sub-electrode located in the second region, the seventh target sub-electrode being located on the side of the second target sub-electrode away from the first target sub-electrode, and the seventh target sub-electrode being located in the same column as the first target sub-electrode and the second target sub-electrode; the fifth type of electrode further includes an eighth target sub-electrode, the eighth target sub-electrode being at least partially located in the second region, and the eighth target sub-electrode being connected to the seventh target sub-electrode; Preferably, the eighth target sub-electrode and the seventh target sub-electrode are connected by a first connecting line, and the first connecting line is disposed in the same layer as the eighth target sub-electrode and the seventh target sub-electrode; Preferably, the side of the seventh target sub-electrode away from the planar region is arc-shaped, the side of the eighth target sub-electrode away from the planar region is arc-shaped, the first connecting line is arc-shaped, and the end of the seventh target sub-electrode away from the planar region and the end of the eighth target sub-electrode away from the planar region are connected by the first connecting line. Preferably, in the first channel, two first sub-electrodes located in the fourth region and adjacent in the second direction are connected; Preferably, in the first channel, two first sub-electrodes located in the third sub-region and partially adjacent in the second direction are connected; Preferably, in the first channel, two sub-first sub-electrodes located in the third sub-region and the fourth region that are adjacent in the second direction are connected along the second direction; Preferably, the ratio of the area of the orthographic projection of the first target sub-electrode onto the substrate to the area of the orthographic projection of the first sub-region onto the substrate is less than or equal to 15%. Preferably, in the second sub-region, the distance between two adjacent conductive bridges in the first direction is 350 micrometers to 2000 micrometers; Preferably, in the second sub-region, along the second direction, the distance between two adjacent conductive bridges corresponding to the same first electrode gradually decreases; Preferably, in the second sub-region, the distance between two adjacent conductive bridges corresponding to the sixth type of electrode is greater than the distance between two adjacent conductive bridges corresponding to the fifth type of electrode.
18. The touch substrate according to any one of claims 14-17, characterized in that, The density of conductive bridges in the second sub-region is greater than the density of conductive bridges in the first sub-region; the density of conductive bridges in the second sub-region is greater than the density of conductive bridges in the third sub-region. Preferably, in the first channel, the portion of the conductive bridge corresponding to the first sub-electrode is located in the second sub-region.
19. A display module, characterized in that, Includes the touch substrate as described in any one of claims 1-18.
20. A display device, characterized in that, Includes the display module as described in claim 19.