TW202036246A - Touch panel capable of reducing parasitic capacitance capable of effectively reducing parasitic capacitance and improving touch sensitivity - Google Patents

Abstract

A touch panel capable of reducing parasitic capacitance is provided. All sensing electrode strips on the current touch panel are charged. Therefore, when the sensing electrode strips of different layers are interlaced, the parasitic capacitance will increase as the area of the interlace section increases. According to the present invention, non-charged dummy sensing electrode strips are inserted between the sensing electrode strips. As such, when the sensing electrode strips of different layers are interlaced, a part of the interlace section is the non-charged dummy sensing electrode strip. Therefore, the area of the interlace section can be reduced, effectively reducing the parasitic capacitance and improving touch sensitivity.

Description

Touch panel capable of reducing parasitic capacitance

A touch panel, especially a touch surface that can reduce parasitic capacitance.

When the touch device is installed on a liquid crystal display panel, because the panel is coated with an ITO conductor to form a capacitor, the liquid crystal display cannot have through holes like a printed circuit board during the coating, so it will be coated with a layer of insulating medium or covered A second layer of conductor is plated after an insulating dielectric layer.

Since the array capacitors inevitably have wires interlaced with each other, the interlaced parts easily constitute a relatively high parasitic capacitance, which easily affects the touch characteristics. Therefore, how to reduce the parasitic capacitance is an important issue for improving the sensitivity of the touch panel.

It is well known that the capacitance value is directly proportional to the area A and dielectric constant (permittivity) of the guide plate, and inversely proportional to the distance d of the guide plate. Therefore, the prior art mainly controls the dielectric constant and the distance between the guide plates to reduce parasitics. The purpose of the capacitor.

In the Taiwan Invention Patent Publication No. I646451 touch panel and touch panel manufacturing method, the method disclosed is to increase the distance between the guide plates to reduce the parasitic capacitance, which is achieved by sandwiching the display panel and the touch sensor. With multiple film layers, the distance between the display panel and the touch sensor can be extended. As a result, it is possible to reduce the parasitic capacitance between the wiring or electrodes constituting the display panel and the wiring or electrodes constituting the touch sensor; as a result, it is possible to suppress the influence of noise generated when the display panel is driven. The detection sensitivity of the touch sensor decreases.

It is preferable to use a material with a relatively low dielectric constant as the film layer or adhesive layer. By using such a thin film layer, the parasitic capacitance between the touch sensor and the display panel can be reduced, so that the number of stacked thin film layers 113 can be reduced.

In addition, in the case of the touch screen of Taiwan Invention Patent Publication No. I644243, the dielectric layer includes a slot, and the slot is located between the first part of the peripheral wiring and the indicator portion, and the slot The dielectric constant of the medium in the dielectric layer is smaller than the dielectric constant of the dielectric layer, so that the parasitic capacitance at the overlapping position of the peripheral trace and the indicator portion is small, such as the parasitic formed by the user’s finger and the peripheral trace. The capacitance is smaller, and the larger parasitic capacitance can be improved, which adversely affects the yield and touch performance of the touch screen.

Although the prior art provides improved methods for reducing parasitic capacitance, they focus on the control of the distance between the dielectric constant and the guide plate, and rarely involve the area of the guide plate. Therefore, the effect of reducing parasitic capacitance is still limited. Therefore, a method must be provided. The method of reducing the area of the intersecting parts of the electrodes can further reduce the parasitic capacitance.

The main purpose of the present invention is to provide a touch panel that can reduce the parasitic capacitance, especially a way to effectively reduce the parasitic capacitance by reducing the area of the intersecting parts of the electrodes, so as to improve the touch sensitivity.

To achieve the above objective, the specific technical means provided by the present invention are as follows: a transparent substrate has a first surface and a second surface opposite to the first surface, has a touch area and a peripheral circuit area, the touch The control area is located in the middle area of the transparent substrate and is surrounded by the peripheral circuit area; a first sensing electrode unit, on the first surface and the touch area, includes a plurality of first sensing electrode bars and a first A dummy sensing electrode strip, a non-charged first dummy sensing electrode strip is arranged between two adjacent first sensing electrode strips, the first dummy sensing electrode strip and the two first sensing electrode strips are mutually connected Are not connected and separated by an interval; a second sensing electrode unit, on the second surface and the touch area, includes a plurality of second sensing electrode strips and a second imitation sensing electrode strip, two adjacent The non-charged second pseudo-sensing electrode strip is arranged between the second sensing electrode strips, and the second pseudo-sensing electrode strip and the two second sensing electrode strips are not connected to each other and are separated by an interval.

Wherein, the first imitation sensing electrode strips are interlaced with the second sensing electrode bars, the second imitation sensing electrode strips, and the second imitation sensing electrode strips are interlaced with the first sensing electrodes Strip and the first imitated sensing electrode strip.

A preferred embodiment of the present invention is that a specific area of the touch area further includes a plurality of first pseudo-sensing electrode strips and a plurality of second pseudo-sensing electrode strips, the first in the specific area The sensing electrode strips are not connected to each other and are spaced apart, and a first pseudo sensing electrode strip is arranged between any two adjacent first sensing electrode strips, and the second sensing electrode strips in the specific area The sensing electrode strips are not connected to each other and are separated by an interval, and a second pseudo-sensing electrode strip is arranged between any two adjacent second sensing electrode strips, and the first pseudo-sensing electrode strips are staggered in the The second sensing electrode strips and the second imitation sensing electrode strips, and the second imitation sensing electrode strips are interlaced with the first sensing electrode strips and the first imitation sensing electrode strip; The touch sensitivity of a specific area; the specific area is all or part of the touch area.

In a preferred embodiment of the present invention, the first sensing electrode strips and the second sensing electrode strips are at least composed of a plurality of metal grids, and the metal grids include a plurality of nodes, which constitute any of the nodes. The angle between the two lines is within an appropriate angle range and is determined in a random manner within the appropriate angle range. The metal grids are further equipped with a cross or a tic-tac-toe pattern respectively, the cross or the The tic-tac-toe pattern does not intersect the metal grids and does not have any nodes in itself; thereby forming a grid density that is invisible to the naked eye.

Continuing from the previous paragraph, any two lines constituting the nodes are composed of curved and/or inclined lines, and the appropriate angle range is between 75 and 125 degrees.

A preferred embodiment of the present invention is that the first imitation sensing electrode strip and the second imitation sensing electrode are at least composed of a plurality of imitation metal grids, the imitation metal grids also include a plurality of nodes, and the imitation metal grids The angle formed between any two lines forming the nodes in the metal mesh is within an appropriate angle range and is determined in a random number manner within the appropriate angle range. Each of the imitation metal meshes is configured with a A cross or a tic-tac-toe pattern, the cross-shaped or the tic-tac-toe pattern does not intersect the imitation metal grid and does not have any nodes itself, and the imitation metal grids are mainly composed of incomplete imitation metal Grid composition; the lines forming the imitation metal grids are mainly composed of curved or inclined lines, and the appropriate angle range is between 75 and 125 degrees; thereby forming a grid density that is invisible to the naked eye.

Another main purpose of the present invention is to provide a touch panel that can reduce parasitic capacitance. In addition to reducing the area of intersecting electrodes, the parasitic capacitance can be effectively reduced, so as to improve the touch sensitivity and enable the Each has a different touch sensitivity.

In order to achieve the other objective mentioned above, the specific technical means provided by the present invention are as follows: on the basis of the embodiment based on the main objective, the touch area further includes a middle touch area and an edge touch area, and the middle touch area The control area is surrounded by the edge touch area, and the metal grid and the imitation metal grid in the middle touch area are each configured with a cross-shaped pattern. The metal grid and the imitation metal grid in the edge touch area The grid is equipped with a tic-tac-toe pattern.

The following is a more detailed description of the implementation of the present invention in conjunction with the drawings and component symbols, so that those who are familiar with the art can implement it after studying this manual.

Refer to FIG. 1, which is a schematic diagram of a touch panel capable of reducing parasitic capacitance of the present invention, and refer to FIG. 2, which is a schematic diagram of a transparent substrate of the present invention. As shown in FIG. 1, the touch panel 1 with reduced parasitic capacitance of the present invention includes at least a light-transmitting substrate 10, a first sensing electrode unit 11, and a second sensing electrode unit 12; as shown in FIG. 2, the light-transmitting substrate 10 includes a touch area V and a peripheral circuit area L. The peripheral circuit area L is between the edge of the transparent substrate 10 and the touch area V. The touch area V is the middle area of the transparent substrate 10. The peripheral circuit area L is the edge area of the transparent substrate 10, that is, the peripheral circuit area L surrounds the touch area V.

The transparent substrate 10 may be a rigid substrate or a flexible substrate; the material of the rigid substrate may be glass, strengthened glass, sapphire, ceramic or other suitable materials; the material of the flexible substrate may be a polymer material. The polymer material is, for example, polyethylene (PE), polypropylene (PP), polystyrene (PS), polymethylmethacrylate (PMMA), polyvinyl chloride (PVC), nylon (Nylon), polycarbonate Ester (PC), polyurethane (PU), polytetrafluoroethylene (PTFE), polyethylene terephthalate (PET), polyimide (PI), acrylic resin (acrylic resin) or polymethyl Materials such as mixed materials of methyl acrylate and polycarbonate. The touch panel formed by using the flexible substrate can be flexible, so it is suitable for wrapping on a flexible surface or any flexible object that needs touch function, such as a display panel made of other suitable materials Flexible substrate.

As shown in FIG. 1, the first sensing electrode unit 11 and the second sensing electrode unit 13 are disposed on the first surface and the second surface of the transparent substrate 10. The first surface and the second surface correspond to each other, such as each other Corresponding to the upper and lower surfaces, they can also be arranged on the upper or lower surfaces of different transparent substrates 10, and then glued together with optical glue (not shown in the figure), so the first sensing electrode unit 11 and the second As long as part or all of the two sensing electrode units 12 are in the corresponding relative positions, arranging the first sensing electrode unit 11 and the second sensing electrode unit 12 on a single or multiple substrates can achieve the purpose of the invention. .

Referring to FIG. 3, FIG. 3 is a schematic diagram of the first sensing electrode unit, and referring to the figure, FIG. 4 is an enlarged schematic diagram of a partial area A of FIG. Please also cooperate with FIG. 1, the first sensing electrode unit 11 is disposed on the first surface of the transparent substrate 10, and is disposed in the touch area V; as shown in FIG. 3, the first sensing electrode unit 11 includes a plurality of first sensing electrode strips 111, a first pseudo-sensing electrode strip 113 and a plurality of first metal leads 115. The first sensing electrode strips 111 are located in the touch area V and extend along the first direction Y , The first metal lead 115 is located in the peripheral circuit area L, and only the first sensing electrode strips 111 are electrically connected to the first metal lead 115, and the first sensing electrode strips 111 are parallel or not interlaced with each other relationship.

Please refer to FIG. 4 and in conjunction with FIG. 3, two adjacent first sensing electrode strips 111 are not connected to each other, that is, two adjacent first sensing electrode strips 111 are separated by an interval D1, and are not charged The first imitation sensing electrode strips 113 of the first are arranged in the distance D1 between the two first sensing electrode strips 111, and the first imitation sensing electrode strips 113 and the first sensing electrode strips 111 are not connected to each other and have a distance from each other. D2. It should be noted that the first imitation sensing electrode strip 113 is not electrically connected to the first metal lead 115, and the first sensing electrode strip 111 and the first imitation sensing electrode strip 113 are parallel or not interlaced relationship.

Refer to FIG. 5, which is a schematic diagram of the second sensing electrode unit, and refer to FIG. 6, which is an enlarged schematic diagram of a partial area B in FIG. 5.

As shown in FIGS. 5 and 6, the second sensing electrode unit 12 is disposed on the second surface. The second sensing electrode unit 12 is located in the touch area V and extends along the second direction X. The sensing electrode unit 12 includes a plurality of second sensing electrode strips 121, a second imitation sensing electrode strip 123, and a second metal lead 125. Only the second sensing electrode strip 121 is electrically connected to the second metal lead 125. The two sensing electrode strips 121 are not connected to each other and have a distance D3 from each other, and between two adjacent second sensing electrode strips 121 is disposed a second imitation sensing electrode strip 123 that is not charged. The sensing electrode strips 123 and the two second sensing electrode strips 121 are not connected to each other and are separated by a distance D4 from each other. The second sensing electrode units 12 are in parallel or non-interlaced relationship with each other, and are in parallel with the second imitation sensing electrode strips. 123 is also parallel or non-staggered.

FIG. 7 is a simple schematic diagram of the relative relationship between the first sensing electrode unit and the second sensing electrode unit. As shown in FIG. 8, the first imitation sensing electrode strip 113 (indicated by the dashed line) will interact with the second sensing electrode strip 121. The second imitation sensing electrode strips 123 (indicated by dashed lines) form an interlaced relationship, and the second imitation sensing electrode strips 123 will form a mutual relationship with the first sensing electrode strip 111 and the first imitation sensing electrode strip 113. Staggered relationship.

Since all the interleaved sensing electrode strips in the prior art are charged, any interlaced sensing electrode strips will generate a certain amount of parasitic capacitance. Compared with the prior art, the charged first sensing electrode of the present invention The strip 111 is interleaved with the charged second sensing electrode strip 121 and the non-charged second imitation sensing electrode strip 123 (indicated by dashed lines), as long as the area of the non-charged second imitation sensing electrode strip is appropriately determined The size and shape will not affect the touch effect; since the second imitation sensing electrode strip is not charged, the intersecting area between the second imitation sensing electrode strip and the first sensing electrode strip 111 is not prone to generate parasitic capacitance , And the intersecting area between the first sensing electrode strip 111 and the second sensing electrode strip 121 is effectively reduced, thereby effectively improving touch sensitivity; similarly, the second sensing electrode strip 121 and the first sensing electrode strip 111, The parasitic capacitance can also be reduced between the first imitation sensing electrode strips 113 (indicated by dotted lines).

That is, in FIG. 7, only the intersecting solid line and the solid line will generate parasitic capacitance, and the intersecting solid line and the broken line will not generate parasitic capacitance.

Therefore, the first (second) pseudo-sensing electrode strips can be configured in part or all of the touch area according to actual needs, so as to reduce the parasitic capacitance value of part or all of the area and improve touch sensitivity.

In an embodiment of the present invention, referring to FIGS. 4 and 6, the first sensing electrode strip 111 and the second sensing electrode strip 121 are mainly composed of a metal mesh, wherein the metal mesh has four A node is composed of two lines, and there is an included angle between the two lines, and the included angle formed between any two lines of the node forming the metal mesh is within an appropriate angle range and at the appropriate angle The range is determined by random numbers.

In a preferred embodiment of the present invention, the metal grid is further configured with a cross-shaped or tic-tac-toe pattern (not shown). The cross-shaped or tic-tac-toe pattern does not intersect the metal grid and does not have Any node (point of intersection); preferably, any two lines forming the node are composed of curved and/or inclined lines, wherein the appropriate angle range is between 75 and 125 degrees.

By arranging the first (two) imitation sensing electrode strips interspersed between the first (two) sensing electrode strips, the capacitance value can be reduced to increase the touch sensitivity and effectively improve the electrical properties; and in one aspect of the present invention In a preferred embodiment, the configuration of the first (two) analog sensing electrode strip is the same or similar to the first (two) sensing electrode strip adjacent to the first (two) analog sensing electrode strip , In order to achieve the purpose of the mesh density that is invisible to the naked eye during observation.

Specifically, the first imitation sensing electrode strip and the second imitation sensing electrode strip are mainly composed of a plurality of imitation metal grids, and the characteristics of the imitation metal grids are roughly the same as those of the aforementioned metal grids, but the imitation The metal grid may be composed of multiple incomplete grids or all of them are composed of incomplete grids; and the metal grids of the first sensing electrode strip 111 and the second sensing electrode strip 121 may include incomplete grids. Grid (at the edge), but it is mainly composed of a complete metal grid; the so-called incomplete grid refers to the number of nodes in the grid is less than 4, which is formed between any two lines forming the nodes of the imitation metal grid The angle of the included angle is within an appropriate angle range and is determined in a random number manner within the appropriate angle range. The imitation metal grid is further equipped with a cross or tic-tac-toe pattern (not shown), preferably a cross or a well The font pattern does not intersect the imitation metal grid and does not have any nodes (intersection points).

Referring to FIG. 8, FIG. 8 is an enlarged schematic diagram of a partial area after the first sensing electrode unit and the second sensing electrode unit are interleaved. As shown in FIG. 8, the metal grids of the first sensing electrode unit 11 and the metal grids of the second sensing electrode unit 12 also form a staggered pattern with high density and invisible to the naked eye by virtue of the relative arrangement relationship. The staggered pattern includes a plurality of irregular polygonal patterns, that is, the staggered pattern includes a plurality of irregular triangles, a plurality of irregular quadrilaterals, a plurality of irregular pentagons and a plurality of irregular hexagons, and the irregular radial pattern is Irregularly distributed in the staggered pattern, the aforementioned polygons of different shapes are irregularly dispersed in the staggered pattern, and part of the second sensing electrode unit is part of the second imitating sensing electrode strip and the first part of the first sensing electrode unit is The imitated sensing electrode strips will also form irregular radial patterns after interlacing each other.

In an embodiment of the present invention, the angle between any two lines forming the nodes of the metal mesh or the imitation metal mesh is within an appropriate angle range, and different choices and combinations are made within the appropriate angle range; The angle between any two lines of the nodes of the grid or imitation metal grid is also within an appropriate angle range and different choices and combinations are made within the above appropriate angle range. The above appropriate angle range is 75 to 125 degrees. The preferred angle range is 77 to 123 degrees, and the optimal angle range is 80 to 120 degrees; for example, in Figure 9A, the number of included angles formed when any two lines intersect is 4, and the angles of the four included angles can be all It is not the same. For example, θ ₁ ~ θ ₄ can be 70 degrees, 110 degrees, 80 degrees, and 100 degrees respectively, and it is just 360 degrees after matching; or as shown in Figure 9B, θ ₁ ~ θ ₄ are respectively 95 degrees, 85 degrees, 65 degrees, 115 degrees, the line connecting the two nodes is not a straight line but an approximate straight line with curvature or slope, so that the staggered pattern contains irregular shapes.

In addition, although there are no nodes in the cross-shaped or tic-tac-toe pattern, the angle between any two adjacent lines forming the cross-shaped or tic-tac-toe shape can be further configured to be within a suitable angle range and within the above-mentioned appropriate range. Different choices and collocations can be made within the angle range. The above-mentioned appropriate angle range is 75 to 125 degrees, the preferable angle range is 77 to 123 degrees, and the best angle range is 80 to 120 degrees.

Refer to FIG. 10, which is a preferred embodiment of the present invention. 10, the touch area V further includes a middle touch area V1 and an edge touch area V2, the middle touch area V1 is surrounded by the edge touch area V2, the first sensing electrode unit 11 and the second sensing electrode The metal grids and imitation metal grids of the unit 12 corresponding to the middle touch area are configured with cross-shaped patterns, and the first sensing electrode unit and the second sensing electrode unit correspond to those in the edge touch area V2 Each metal grid and imitation metal grid are equipped with a Tic-Tac-Toe pattern. Because the edge touch area is more disturbed than the middle touch area, the metal grid with a Tic-Tac-Toe pattern is arranged in the edge touch area. The grid density of the tic-tac-toe pattern is lower (compared to the cross pattern), the impedance is higher, and the impedance is higher, the touch sensitivity is higher, so the touch sensitivity of the edge touch area can be improved.

The metal grids, the first imitation sensing electrode strips or the second imitation sensing electrode strips are made of at least copper, gold, aluminum, copper, silver, chromium, titanium, molybdenum, neodymium, nickel and alloys of the foregoing metals one of them;.

Since the technology of the present invention is not found in published publications, periodicals, magazines, media, and exhibition venues, it is novel, and can break through the current technical bottleneck and be implemented specifically, which is indeed progressive. In addition, the present invention can solve the problems of the conventional technology, improve the overall use efficiency, and achieve the value of industrial use.

The above descriptions are only used to explain the preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Therefore, any modifications or changes related to the present invention made under the same spirit of the invention , Should still be included in the scope of the invention's intention to protect.

1: Touch panel that can reduce parasitic capacitance 10: Transparent substrate 11: The first sensing electrode unit 12: The second sensing electrode unit 111: The first sensing electrode strip 113: The first imitation sensing electrode strip 115: first metal lead 121: second sensing electrode strip 123: The second imitation sensing electrode strip 125: second metal lead A, B: local area D1~ D4: interval V: Touch area V1: Middle touch area V2: Edge touch area L: Surrounding line area X: first direction Y: second direction

FIG. 1 is a schematic diagram of a touch panel capable of reducing parasitic capacitance of the present invention. Fig. 2 is a schematic diagram of a transparent substrate of the present invention. FIG. 3 is a schematic diagram of the first sensing electrode unit. FIG. 4 is an enlarged schematic diagram of a partial area A of FIG. 3. Fig. 5 is a schematic diagram of a second sensing electrode unit. FIG. 6 is an enlarged schematic diagram of a partial area B in FIG. 5. FIG. 7 is a simple schematic diagram of the relative relationship between the first sensing electrode unit and the second sensing electrode unit. FIG. 8 is an enlarged schematic diagram of a partial area after the first sensing electrode unit and the second sensing electrode unit are interleaved. 9A is a schematic diagram of an embodiment of the angle formed between a node and two lines forming the node. 9B is a schematic diagram of another embodiment of the angle formed between the node and the two lines forming the node. Fig. 10 is a schematic diagram of a preferred embodiment of the present invention.

111: The first sensing electrode strip

113: The first imitation sensing electrode strip

121: second sensing electrode strip

123: The second imitation sensing electrode strip

D1~D4: interval

Claims (7)

A touch panel capable of reducing parasitic capacitance, comprising: a light-transmitting substrate having a first surface and a second surface opposite to the first surface, having a touch area and a peripheral circuit area, the touch area Located in the middle area of the transparent substrate and surrounded by the peripheral circuit area; a first sensing electrode unit, on the first surface and the touch area, including a plurality of first sensing electrode bars and a first analog A sensing electrode strip, a non-charged first dummy sensing electrode strip is arranged between two adjacent first sensing electrode strips, and the first dummy sensing electrode strip and the two first sensing electrode strips are not connected to each other And a distance apart; and a second sensing electrode unit, on the second surface and the touch area, including a plurality of second sensing electrode strips and a second imitation sensing electrode strips, two adjacent An uncharged second imitation sensing electrode strip is arranged between the two sensing electrode strips, the second imitation sensing electrode strip and the two second sensing electrode strips are not connected to each other and are separated by an interval; wherein, the first The imitation sensing electrode strips are interlaced between the second sensing electrode strips and the second imitation sensing electrode strips, and the second imitation sensing electrode strips are interlacing the first sensing electrode strips and the first Imitated sensing electrode strips. The touch panel capable of reducing parasitic capacitance according to the first item of the scope of patent application, wherein a specific area of the touch area further includes a plurality of first pseudo-sensing electrode strips and a plurality of second pseudo-sensing electrode strips , The first sensing electrode strips in the specific area are not connected to each other and are all separated by an interval, and a first dummy sensing electrode strip is arranged between any two adjacent first sensing electrode strips, and The second sensing electrode strips in the specific area are not connected to each other and are separated by an interval, and a second imitation sensing electrode strip is arranged between any two adjacent second sensing electrode strips. A pseudo-sensing electrode strip is interlaced between the second sensing electrode strips and the second pseudo-sensing electrode strips, and the second pseudo-sensing electrode strips are interlaced between the first sensing electrode strips and the The first imitated sensing electrode strip. The touch panel capable of reducing parasitic capacitance according to claim 1, wherein the first sensing electrode strips and the second sensing electrode strips are at least composed of a plurality of metal meshes, the metal meshes The grid contains a plurality of nodes. The angle between any two lines constituting the nodes is within an appropriate angle range and is determined in a random number manner within the appropriate angle range. The metal grids are further configured with a cross or A tic-tac-toe pattern, the cross or the tic-tac-toe pattern does not intersect the metal grids and does not have any nodes. According to the touch panel capable of reducing parasitic capacitance according to item 3 of the scope of patent application, any two lines constituting the nodes are formed by lines with curvature and/or slope, and the appropriate angle range is 75 Between ~125 degrees. The touch panel capable of reducing parasitic capacitance according to item 1 or 3 of the scope of patent application, wherein the first imitation sensing electrode strip and the second imitation sensing electrode are at least composed of a plurality of imitation metal grids, the The imitation metal grid also includes a plurality of nodes. The angle formed between any two lines forming the nodes in the imitation metal grid is within an appropriate angle range and has a random number within the appropriate angle range. The method determines that each of the imitation metal grids is configured with a cross or a tic-tac-toe pattern, the cross-shaped or the tic-tac-toe pattern does not intersect the imitation metal grid and does not have any node itself, and These imitation metal grids are mainly composed of incomplete imitation metal grids. According to the touch panel capable of reducing parasitic capacitance according to item 5 of the scope of patent application, the lines constituting the imitation metal grids are mainly composed of curved or inclined lines, and the appropriate angle range is 75~ Between 125 degrees. The touch panel capable of reducing parasitic capacitance according to claim 5, wherein the touch area further includes a middle touch area and an edge touch area, and the middle touch area is defined by the edge touch area Surrounding, the metal grid and the imitation metal grid in the middle touch area are each configured with a cross-shaped pattern, and the metal grid and the imitation metal grid in the edge touch area are each configured with a tic-shaped pattern. pattern.

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