Touch panel and electronic equipment

Abstract

The invention relates to the technical field of panel display, and discloses a touch panel which comprises a substrate and a plurality of touch electrodes arranged on the substrate, the substrate is provided with a first surface and a second surface, the first surface is divided into a touch area and a bonding area, and the bonding area is located on any side of the touch area; a plurality of touch electrodes are arranged on the first surface, gaps are formed among the touch electrodes, a touch lead is led out from each touch electrode, the touch electrodes are arranged on the touch area of the first surface, and at least one touch lead extends to the bonding area along the touch area; wherein the plurality of touch electrodes are of a metal grid structure, and the plurality of touch electrodes extend along a first direction. According to the touch panel, the touch electrodes are arranged to be of the metal grid structure, the impedance of the touch area can be effectively reduced, the overall touch performance is improved, meanwhile, arrangement of wires on the periphery of the touch area can be avoided, the three-face frameless design can be achieved, and the overall appearance effect is improved. The invention further discloses an electronic device with the touch panel.

Description

Technical Field

[0001] The present invention relates to the technical field of flat panel displays, and in particular to a touch panel and an electronic device. Background Art

[0002] In the prior art, in order to simplify the production process, the electrodes can be set on a sensing electrode layer on the substrate. The touch screen of this single-layer sensing electrode layer usually includes a plurality of separately set electrodes and corresponding electrode leads, and the electrode leads are routed from the edge of the touch area or the inside of the touch area.

[0003] At present, a touch screen with this structure generally uses indium tin oxide (ITO) as an electrode material. Since ITO has a high impedance, it is not conducive to the overall touch effect of the touch screen. Summary of the invention

[0004] The present invention aims to solve at least one of the problems in the background technology. To this end, the present invention provides a touch panel and an electronic device, wherein the touch panel has good touch performance and excellent appearance display effect.

[0005] A touch panel according to an embodiment of the first aspect of the present invention comprises a substrate and a plurality of touch electrodes arranged thereon, wherein the substrate has a first surface and a second surface, the first surface is divided into a touch area and a bonding area, and the bonding area is located on either side of the touch area; there are gaps between the plurality of touch electrodes, each of the touch electrodes has a touch lead led out, the plurality of touch electrodes are arranged in the touch area of ​​the first surface, and at least one of the touch leads extends from the touch area to the bonding area; wherein the plurality of touch electrodes are metal grid structures, and the plurality of touch electrodes extend along a first direction.

[0006] This solution can effectively reduce the impedance of the touch area by setting the touch electrode into a metal grid structure, thereby improving the overall touch performance. At the same time, the touch lead is set in the touch area, which can avoid setting up wiring around the touch area and achieve a three-sided borderless design, thereby improving the overall appearance.

[0007] According to another embodiment of the present invention, each of the touch electrodes is composed of a plurality of grid patterns formed by crossing metal wires.

[0008] According to another embodiment of the present invention, each of the touch leads is extended along the second direction from one of the metal wires.

[0009] According to another embodiment of the present invention, a width W1 of the touch wire along the first direction is less than or equal to half of a width W2 of each grid pattern along the first direction.

[0010] According to another embodiment of the present invention, the touch lead includes a first portion, a connecting portion, and a second portion, the connecting portion is disposed between the first portion and the second portion, and the first portion and the second portion respectively extend in the same direction as the other metal wire.

[0011] According to another embodiment of the present invention, the grid pattern closest to the connecting portion is provided with a compensation portion having the same structure as the connecting portion, and both the compensation portion and the connecting portion extend along the second direction.

[0012] According to another embodiment of the present invention, a width W2 of each of the grid patterns along the first direction is smaller than a width W3 of the grid pattern along the second direction.

[0013] According to another embodiment of the present invention, the grid pattern is one or a combination of triangles, quadrilaterals, pentagons, hexagons or ellipses.

[0014] According to another embodiment of the present invention, the width W0 of the plurality of touch electrodes along the first direction gradually increases as the distance from the bonding area increases.

[0015] An electronic device according to an embodiment of a second aspect of the present invention comprises any of the above touch panels.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention discloses a touch panel, including a substrate and a plurality of touch electrodes arranged thereon, wherein the substrate has a first surface and a second surface, the first surface is divided into a touch area and a bonding area, and the bonding area is located on either side of the touch area; there are gaps between the plurality of touch electrodes, each touch electrode leads to a touch lead, the plurality of touch electrodes are arranged in the touch area of ​​the first surface, and at least one touch lead extends from the touch area to the bonding area; wherein the plurality of touch electrodes are metal grid structures, and the plurality of touch electrodes extend along a first direction. By setting the touch electrodes to the metal grid structure, the impedance of the touch area can be effectively reduced, thereby improving the overall touch performance, and at the same time, the touch leads are set in the touch area, which can avoid setting the wiring outside the touch area, and can achieve a three-sided borderless design, thereby improving the overall appearance effect.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are only used to illustrate the embodiments and are not to be considered as limiting the present invention. In addition, the same reference symbols are used to represent the same components throughout the accompanying drawings. In the accompanying drawings:

[0020] Figure 1 A schematic diagram of an embodiment of a touch panel provided in the present application;

[0021] Figure 2 A cross-sectional schematic diagram of an embodiment of a touch panel provided in the present application;

[0022] Figure 3 A partially enlarged schematic diagram of an embodiment of a touch panel provided in the present application;

[0023] Figure 4 A partially enlarged schematic diagram of another embodiment of the touch panel provided by the present application;

[0024] Figure 5 A schematic diagram of another embodiment of a touch panel provided in the present application;

[0025] Figure 6 A schematic diagram of another embodiment of a touch panel provided in the present application;

[0026] Figure 7 A cross-sectional schematic diagram of an embodiment of an electronic device provided by the present application;

[0027] The meanings of the marks in the figure are:

[0028] 10. Electronic equipment;

[0029] 100, touch panel; 101, touch area; 102, bonding area;

[0030] 110, substrate; 111, first surface; 112, second surface;

[0031] 120, touch electrode; 121, touch lead; 1211, first part; 1212, connection part;

[0032] 1213, Part II;

[0033] 130. Metal wire;

[0034] 140. Graphic combination; 141. Grid graphic; 1411. Compensation part. DETAILED DESCRIPTION

[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] In the description of the present invention, it is to be understood that a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] To illustrate the touch panel and electronic device provided in the present application, the following is a detailed description in conjunction with the accompanying drawings and the textual description of the embodiments.

[0039] Reference below Figure 1-Figure 6 A touch panel 100 according to an embodiment of the first aspect of the present invention is described. Figure 1-Figure 6As shown, the touch panel 100 includes a base substrate 110 and a plurality of touch electrodes 120 disposed on the base substrate 110. Specifically, the base substrate 110 has a first surface 111 and a second surface 112. The first surface 111 is divided into a touch area 101 and a bonding area 102. The bonding area 102 is located on either side of the touch area 101. Further, the plurality of touch electrodes 120 are disposed in the touch area 101 of the first surface 111, and gaps are provided between the plurality of touch electrodes 120 to achieve electrical isolation from each other. Each touch electrode 120 leads to a touch lead 121, and at least one touch lead 121 extends from the touch area 101 to the bonding area 102. It can be understood that, through By setting the touch lead 121 in the touch area 101, the area of ​​the wiring region outside the touch area 101 can be effectively reduced. Furthermore, the multiple touch electrodes 120 are a metal grid structure, and the multiple touch electrodes 120 extend along the first direction, that is, the length of the multiple touch electrodes 120 along the first direction is greater than the length in the direction perpendicular to the first direction. It can be seen that by setting the touch electrode 120 to a metal grid structure, the impedance of the touch area 101 can be effectively reduced, thereby improving the overall touch performance. At the same time, setting the touch lead 121 in the touch area 101 can avoid setting wiring outside the touch area 101, and can achieve a three-sided borderless design, thereby improving the overall appearance.

[0040] It should be noted that, in the present embodiment, there may be at least one touch lead 121 extending from the touch area 101 to the bonding area 102, that is, at least one touch lead 121 is routed along the inside of the touch area 101. Preferably, all touch leads 121 are routed along the inside of the touch area 101, so that there is no need to set an additional touch lead 121 routing area outside the touch area 101, thereby avoiding setting routing outside the touch area 101, and realizing a three-sided borderless design, thereby improving the overall appearance.

[0041] It should be noted that, in some other embodiments, there may be at least one touch lead 121 extending from the outside of the touch area 101 to the bonding area 102. For example, all the touch leads 121 are led out from the right side of the touch electrode 120. At this time, the touch lead 121 located on the far right needs to be routed from the outside of the touch area 101, that is, at least one touch lead 121 is routed along the periphery of the touch area 101.

[0042] According to one embodiment of the present invention, Figure 1 , Figure 3 and Figure 4As shown, each touch electrode 120 is composed of a plurality of grid patterns 141 formed by crossing metal wires 130 , that is, by configuring the touch electrode 120 as a plurality of interconnected grid patterns 141 , the impedance of the touch area 101 can be effectively reduced, thereby improving the overall touch performance.

[0043] It should be noted that each touch electrode 120 may be composed of a plurality of graphic combinations 140, wherein each graphic combination 140 may be composed of a plurality of relatively small grid graphics 141 combinations 140, for example, each graphic combination 140 may be composed of 10-100 grid graphics 141 combinations 140, further, each touch electrode 120 may include 2-10 large graphic combinations 140, and the cross-sectional graphics of each graphic combination 140 presents a rhombus and its deformed shape, and at the same time, between adjacent touch electrodes 120, the adjacent two The rhombuses present a nested effect in the cross section. Furthermore, each touch electrode 120 is numbered according to the distance from the bonding area 102. The graphic combination 140 on the left and right sides of the touch electrode 120 with an odd number is a half rhombus, and the touch electrodes 120 with an even number are all rhombuses. Furthermore, the touch electrode 120 closest to the bonding area 102 and the touch electrode 120 farthest from the bonding area 102 have a graphic combination 140 of a half rhombus or a quarter rhombus, wherein the quarter rhombus is arranged on the left and right sides of the touch electrode 120.

[0044] According to one embodiment of the present invention, Figure 1 , Figure 3-Figure 5 As shown, each touch lead 121 is extended from a metal line 130 along the second direction, wherein the first direction and the second direction are perpendicular, that is, the touch lead 121 extends to the bonding area 102 along the second direction perpendicular to the first direction.

[0045] It should be noted that the first direction can refer to Figure 1 The X direction in the second direction refers to Figure 1 in the Y direction.

[0046] According to one embodiment of the present invention, Figure 3 As shown, the width W1 of the touch lead 121 along the first direction is less than or equal to half of the width W2 of each grid pattern 141 along the first direction. It can be understood that by reducing the width W1 of the touch lead 121 along the first direction, the crosstalk of the touch electrodes 120 adjacent to the touch lead 121 can be reduced.

[0047] According to one embodiment of the present invention, Figure 3As shown, the touch lead 121 includes a first portion 1211, a connecting portion 1212 and a second portion 1213, the connecting portion 1212 is disposed between the first portion 1211 and the second portion 1213, and the first portion 1211 and the second portion 1213 are respectively in the same extension direction as the other metal wire 130, that is, at this time, a plurality of first portions 1211, connecting portions 1212 and the second portion 1213 are alternately connected in sequence to form the touch lead 121, and further, the length of the connecting portion 1212 is less than the first portion 1 211 or half of the width of the second part 1213 along the first direction. It can be understood that by providing a connecting part 1212 between the first part 1211 and the second part 1213, which is different from the extension direction of the two parts, it is possible to avoid the first part 1211 and the second part 1213 from directly contacting and forming an acute angle, thereby causing electrostatic discharge at the ESD tip. At the same time, by reasonably setting the length of the connecting part 1212, it is possible to avoid the length of the connecting part 1212 being too large, which will cause an uneven appearance to the overall grid pattern 141.

[0048] According to one embodiment of the present invention, Figure 4 As shown, the grid pattern 141 closest to the connecting portion 1212 is provided with a compensation portion 1411 having the same structure as the connecting portion 1212, and the compensation portion 1411 and the connecting portion 1212 both extend along the second direction. It can be understood that by providing the compensation portion 1411 having the same structure as the connecting portion 1212, it is possible to avoid tip discharge between the connecting portion 1212 and the edge of the adjacent grid pattern 141.

[0049] According to one embodiment of the present invention, Figure 3 As shown, a width W2 of each grid pattern 141 along the first direction is smaller than a width W3 of the grid pattern 141 along the second direction.

[0050] According to one embodiment of the present invention, Figure 1 , Figure 3 and Figure 4 As shown, the grid pattern 141 is one or a combination of triangles, quadrilaterals, pentagons, hexagons or ellipses.

[0051] It should be noted that the grid pattern 141 can be a regular pattern, or the grid pattern 141 can be set to an irregular quadrilateral. It can be understood that the grid pattern 141 can also be a combination of regular and irregular patterns to meet the needs of different usage scenarios.

[0052] According to one embodiment of the present invention, Figure 2-Figure 4 As shown, the width W0 of the touch electrodes 120 along the first direction gradually increases as the distance from the bonding area 102 increases.

[0053] Reference below Figure 7 An electronic device 10 according to an embodiment of the second aspect of the present invention is described. Figure 7 As shown, the touch panel 100 includes a touch electrode 120 which is set as a metal grid structure, thereby effectively reducing the impedance of the touch area 101 and improving the overall touch performance. At the same time, the touch lead 121 is set in the touch area 101, which can avoid setting wiring around the touch area 101 and achieve a three-sided borderless design, thereby improving the overall appearance.

[0054] The touch panel and electronic device provided above for the present application are preferred embodiments and should not be construed as limiting the scope of protection of the present application. Those skilled in the art should be aware that various improvements or substitutions may be made without departing from the concept of the present application, and all improvements or substitutions should be within the scope of protection of the present application, that is, the scope of protection of the present application should be based on the claims.

[0055] In the absence of conflict, the above embodiments and features in the embodiments may be combined with each other.

Claims

1. A touch panel, characterized in that: include: A base substrate, the base substrate having a first surface and a second surface, the first surface being divided into a touch area and a bonding area, the bonding area being located on either side of the touch area; A plurality of touch electrodes, wherein gaps are provided between the plurality of touch electrodes, a touch lead is led out from each of the touch electrodes, the plurality of touch electrodes are arranged in a touch area of ​​the first surface, and at least one touch lead extends from the touch area to the bonding area; The plurality of touch electrodes are metal grid structures, and the plurality of touch electrodes extend along a first direction.

2. The touch panel according to claim 1, wherein: Each of the touch electrodes is composed of a plurality of grid patterns formed by crossing metal wires.

3. The touch panel according to claim 2, wherein: Each of the touch lead lines extends from one of the metal lines along the second direction.

4. The touch panel according to claim 3, wherein: A width W1 of the touch lead along the first direction is less than or equal to half of a width W2 of each grid pattern along the first direction.

5. The touch panel according to claim 4, wherein: The touch lead includes a first portion, a connecting portion, and a second portion. The connecting portion is disposed between the first portion and the second portion, and the first portion and the second portion respectively extend in the same direction as the other metal wire.

6. The touch panel according to claim 5, wherein: The grid pattern closest to the connecting portion is provided with a compensation portion having the same structure as the connecting portion, and both the compensation portion and the connecting portion extend along the second direction.

7. The touch panel according to claim 3, wherein: A width W2 of each of the grid patterns along the first direction is smaller than a width W3 of the grid patterns along the second direction.

8. The touch panel according to claim 2, wherein: The grid pattern is one or a combination of triangle, quadrilateral, pentagon, hexagon or ellipse.

9. The touch panel according to claim 1, wherein: The width W0 of the touch electrodes along the first direction gradually increases as the distance from the bonding area increases.

10. An electronic device, characterized in that: The touch panel comprises any one of claims 1 to 9.

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