TWM488050U - Touch panel - Google Patents

Abstract

A touch panel has a transparent region and a peripheral region at least disposed at a side of the transparent region. The touch panel includes an inductive electrode at least disposed in the transparent region. The portion of the inductive electrode inside the transparent region has a first metal mesh structure. The touch panel further includes a conductive element disposed in the peripheral region. At least one portion of the conductive element has a second metal mesh structure. The opening ratio of the first metal mesh structure is greater than that of the second metal mesh structure.

Claims (51)

A touch panel has a light transmissive area and a surrounding area on at least one side of the light transmissive area. The touch panel includes: an inductive electrode disposed at least in the light transmissive area, the sensing electrode a portion of the light transmissive region has a first metal mesh structure, and the first metal mesh structure is composed of a plurality of first metal thin wires; and a conductive member is disposed in the surrounding region, the conductive component At least a portion has a second metal mesh structure, and the second metal mesh structure is composed of a plurality of second metal thin wires, wherein a line width of the second metal thin wires is greater than a line width of the first metal thin wires . The touch panel of claim 1, wherein any two adjacent first metal thin wires have a first pitch, and any two adjacent second metal thin wires have a second line a distance, wherein the first line spacing is greater than the second line spacing, and any two adjacent first metal thin wires extend in the same direction and are electrically connected to each other, and any two adjacent ones of the second metals The thin wires extend in the same direction and are electrically connected to each other. The touch panel of claim 1, wherein the conductive element comprises a surrounding trace. The touch panel of claim 3, wherein the trace width of the surrounding trace is about 20 to 40 microns, and the line width of the second metal thin line is equal to or greater than about 5 microns. The touch panel of claim 1, wherein the conductive element has a sensing function and is used as a sensing element of one of the function keys of the touch panel. The touch panel of claim 5, further comprising a decorative layer disposed in the surrounding area, the decorative layer having a functional hole in the sensing element region, defining a functional key pattern, and the conductive element is The decorative layers partially overlap. The touch panel of claim 6, wherein the functional element is provided with a portion of the sensing element having the second metal mesh structure. The touch panel of claim 6, wherein the sensing element comprises: a first function key electrode; and a second function key electrode located on one side of the first function key electrode, wherein the second function key The electrode is insulated from the first functional bond electrode. The touch panel of claim 8, wherein the first function key electrode is formed by a metal layer, and one of the first function key electrodes is partially located in the function hole. The touch panel of claim 9, wherein the metal layer further comprises a plurality of micro-holes disposed in the functional hole. The touch panel of claim 8, wherein the first function key electrode is formed by a metal layer having a functional hole, the pattern of which is similar to the functional hole of the decorative layer, and the metal layer The size of the functional aperture is greater than the size of the functional aperture of the decorative layer. The touch panel of claim 8, wherein one of the first function key electrodes is formed by a metal layer, and the other part of the first function key electrode is formed by the conductive element having the second metal mesh structure Part of the composition. The touch panel of claim 8, wherein the second function key electrode is formed by a portion of the conductive element having the second metal mesh structure. The touch panel of claim 8, wherein the second function key electrode is composed of a metal layer. The touch panel of claim 6, wherein the functional hole is provided with silver glue. The touch panel of claim 1, further comprising a transparent substrate and a decorative layer, the decorative layer being disposed on the surface of the transparent substrate and located in the surrounding area. The touch panel of claim 16, wherein the sensing electrode further extends to the surrounding area, and the sensing electrode is located at at least a portion of the surrounding area having a third metal mesh structure, the third metal mesh structure being A plurality of third metal thin wires are formed, and a line width of the third metal thin wires is greater than a line width of the first metal thin wires. The touch panel of claim 17, wherein a line width of the third metal thin wires is equal to a line width of the second metal thin wires. The touch panel of claim 17, further comprising a buffer between the surrounding area and the transparent area, and the sensing electrode further includes a portion disposed in the buffer, the sensing electrode is disposed in the The portion of the buffer has the third metal grid structure. The touch panel of claim 19, further comprising an inner frame layer disposed at the buffer zone and a portion of the surrounding area, wherein the portion of the inner frame layer located in the surrounding area is disposed on the decorative layer and the through-layer A portion of the inner frame layer located in the buffer region is disposed between the sensing electrode and the light transmissive substrate. The touch panel of claim 16, further comprising a substrate disposed on one side of the transparent substrate and parallel to the transparent substrate, wherein the sensing electrode and the conductive component are disposed on the substrate facing or facing away from the substrate On the surface of the light transmissive substrate. The touch panel of claim 1, wherein the sensing electrode comprises: at least one first conductive electrode extending along a first direction; and at least one second conductive electrode extending along a second direction, and The first direction intersects the second direction, the second conductive electrode is insulated from the first conductive electrode; wherein the length of the first conductive electrode is greater than the length of the second conductive electrode, and the impedance value of the first conductive electrode The impedance is greater than the impedance value of the second conductive electrode. The touch panel of claim 22, wherein a thickness of the first conductive electrode is not equal to a thickness of the second conductive electrode. The touch panel of claim 1, wherein the first metal thin wires and the second metal thin wires have a molybdenum oxide/molybdenum/aluminum/molybdenum composite layer structure (MoOx/Mo/Al/Mo multilayered structure), and are oxidized. Molybdenum-niobium alloy/molybdenum-niobium alloy/aluminum-niobium alloy/molybdenum-niobium alloy composite layer structure (MoNbOx/MoNb/AlNd/MoNb multilayered structure) or copper oxide/copper (CuOx/Cu multilayered structure) composite layer structure. The touch panel of claim 1, wherein the sensing electrode comprises a plurality of first conductive electrodes and a plurality of second conductive electrodes, which are insulated from each other, wherein the first conductive electrodes extend along a first direction, The second conductive electrodes extend along a second direction, and the first direction intersects the second direction, and the line widths of the metal thin wires of the first conductive electrodes and the metal thin wires of the second conductive electrodes The line width is different. The touch panel of claim 1, wherein the sensing electrode comprises a plurality of first conductive electrodes and a plurality of second conductive electrodes, which are insulated from each other, wherein the first conductive electrodes extend along a first direction, And the second conductive electrodes extend along a second direction, and the first direction and the second The directions intersect, the density of the metal grid of the first conductive electrodes being different from the density of the metal grids of the second conductive electrodes. A touch panel has a light transmissive area and a surrounding area on at least one side of the light transmissive area. The touch panel includes: a sensing electrode disposed at least in the light transmissive area, wherein the sensing electrode is located in the light transmissive area The portion of the region has a first metal mesh structure, and the first metal mesh structure is composed of a plurality of first metal thin wires, and any two adjacent first metal thin wires have a first line spacing. Wherein the two adjacent first metal thin wires extend in the same direction and are electrically connected to each other; and a conductive element is disposed in the surrounding area, at least a portion of the conductive element has a second metal mesh structure, and The second metal mesh structure is composed of a plurality of second metal thin wires, and any two adjacent second metal thin wires have a second line pitch, wherein the adjacent two of the second metal thin wires Extending in the same direction and electrically connected to each other, and the line width of the second metal thin wires is equal to the line width of the first metal thin wires, the second line pitch is smaller than the first line pitch, and the unit area is the same The number of two metal thin wires Such number of thin metal wires in the first unit area. The touch panel of claim 27, wherein the conductive element comprises a surrounding trace. The touch panel of claim 28, wherein the trace width of the surrounding trace is about 20 to 40 microns, and the line width of the second metal thin line is equal to or greater than about 5 microns. The touch panel of claim 27, wherein the conductive element has a sensing function and is used as a sensing element of one of the function keys of the touch panel. The touch panel of claim 30, further comprising a decorative layer disposed in the surrounding area, the decorative layer having a functional hole in the sensing element region, defining a functional key pattern, and the conductive element is coupled to The decorative layers partially overlap. The touch panel of claim 31, wherein the functional element is provided with a portion of the sensing element having the second metal mesh structure. The touch panel of claim 31, wherein the sensing element comprises: a first function key electrode; and a second function key electrode located on one side of the first function key electrode, wherein the second function key The electrode is insulated from the first functional bond electrode. The touch panel of claim 33, wherein the first function key electrode is formed by a metal layer, and one of the first function key electrodes is partially located in the function hole. The touch panel of claim 34, wherein the metal layer further comprises a plurality of micro-holes disposed in the functional hole. The touch panel of claim 33, wherein the first function key electrode is formed by a metal layer having a functional hole, the pattern of which is similar to the functional hole of the decorative layer, and the metal layer The size of the functional aperture is greater than the size of the functional aperture of the decorative layer. The touch panel of claim 33, wherein one of the first function key electrodes is formed by a metal layer, and the other part of the first function key electrode is formed by the conductive element having the second metal mesh structure Part of the composition. The touch panel of claim 33, wherein the second function key electrode is provided by the conductive element The portion of the second metal mesh structure is constructed. The touch panel of claim 33, wherein the second function key electrode is composed of a metal layer. The touch panel of claim 31, wherein the functional hole is provided with silver glue. The touch panel of claim 27, further comprising a transparent substrate and a decorative layer disposed on the surface of the transparent substrate and located in the surrounding area. The touch panel of claim 41, wherein the sensing electrode further extends to the surrounding area, and the sensing electrode has at least a third metal mesh structure in a portion of the surrounding area, the third metal mesh structure is A plurality of third metal thin wires are formed, and a line width of the third metal thin wires is greater than a line width of the first metal thin wires. The touch panel of claim 42, wherein the line width of the third metal thin wires is equal to the line width of the second metal thin wires. The touch panel of claim 42, further comprising a buffer between the surrounding area and the transparent area, and the sensing electrode further includes a portion disposed in the buffer, the sensing electrode is disposed at the The portion of the buffer has the third metal grid structure. The touch panel of claim 44, further comprising an inner frame layer disposed at the buffer zone and a portion of the surrounding area, wherein the portion of the inner frame layer located in the surrounding area is disposed on the decorative layer and the transparent layer A portion of the inner frame layer located in the buffer region is disposed between the sensing electrode and the light transmissive substrate. The touch panel of claim 41, further comprising a substrate disposed on one side of the transparent substrate And parallel to the transparent substrate, and the sensing electrode and the conductive element are disposed on a surface of the substrate facing or facing away from the transparent substrate. The touch panel of claim 27, wherein the sensing electrode comprises: at least one first conductive electrode extending along a first direction; and at least one second conductive electrode extending along a second direction, and The first direction intersects the second direction, the second conductive electrode is insulated from the first conductive electrode; wherein the length of the first conductive electrode is greater than the length of the second conductive electrode, and the impedance value of the first conductive electrode The impedance is greater than the impedance value of the second conductive electrode. The touch panel of claim 47, wherein a thickness of the first conductive electrode is not equal to a thickness of the second conductive electrode. The touch panel of claim 27, wherein the first metal thin wires and the second metal thin wires have a molybdenum oxide/molybdenum/aluminum/molybdenum composite layer structure (MoOx/Mo/Al/Mo multilayered structure), and are oxidized. Molybdenum-niobium alloy/molybdenum-niobium alloy/aluminum-niobium alloy/molybdenum-niobium alloy composite layer structure (MoNbOx/MoNb/AlNd/MoNb multilayered structure) or copper oxide/copper (CuOx/Cu multilayered structure) composite layer structure. The touch panel of claim 27, wherein the sensing electrode comprises a plurality of first conductive electrodes and a plurality of second conductive electrodes insulated from each other, wherein the first conductive electrodes extend along a first direction, The second conductive electrodes extend along a second direction, and the first direction intersects the second direction, and the line widths of the metal thin wires of the first conductive electrodes and the metal thin wires of the second conductive electrodes The line width is different. The touch panel of claim 27, wherein the sensing electrode comprises a plurality of first conductive electrodes And a plurality of second conductive electrodes, which are insulated from each other, wherein the first conductive electrodes extend along a first direction, and the second conductive electrodes extend along a second direction, and the first direction The second direction intersects, and the density of the metal mesh of the first conductive electrodes is different from the density of the metal mesh of the second conductive electrodes.