WO2014114212A1 - 触控单元及触控面板 - Google Patents

触控单元及触控面板 Download PDF

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Publication number
WO2014114212A1
WO2014114212A1 PCT/CN2014/070885 CN2014070885W WO2014114212A1 WO 2014114212 A1 WO2014114212 A1 WO 2014114212A1 CN 2014070885 W CN2014070885 W CN 2014070885W WO 2014114212 A1 WO2014114212 A1 WO 2014114212A1
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WO
WIPO (PCT)
Prior art keywords
dielectric
conductive
touch panel
oxide
touch
Prior art date
Application number
PCT/CN2014/070885
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English (en)
French (fr)
Inventor
许毅中
徐国书
Original Assignee
宸鸿科技(厦门)有限公司
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Publication of WO2014114212A1 publication Critical patent/WO2014114212A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate

Definitions

  • the present invention relates to a touch technology, and more particularly to a touch unit and a touch panel using the touch unit.
  • a capacitive touch panel includes a cover, a substrate, and a capacitive touch sensing original.
  • the cover plate is used for accepting a touch operation and protecting other components.
  • the substrate is used for carrying other components, and the capacitive touch sensing element is used for sensing a touch operation to generate a capacitance change and converting into a corresponding sensing signal.
  • thinning is the consistent demand of users, and it is also the goal that manufacturers are pursuing.
  • the technical problem to be solved by the present invention is to provide a thin touch panel and a touch panel.
  • the touch panel and the touch panel reduce the thickness of the dielectric component, thereby achieving a thinner touch panel.
  • the present invention provides a touch unit including a first conductive element, a second conductive element, and a dielectric element disposed between the first conductive element and the second conductive element And electrically insulating the first conductive element from the second conductive element, wherein the dielectric element has a thickness of less than or equal to 1 micrometer.
  • the dielectric element has a dielectric constant of 5 to 80.
  • the dielectric element has a thickness of 0.05 ⁇ m or more and 1 ⁇ m or less.
  • the dielectric element has a thickness of 0.05 ⁇ m or more and 0.5 ⁇ m or less.
  • the material of the dielectric element is selected from the group consisting of silicon nitride, aluminum oxide, silicon germanium oxide, antimony trioxide, antimony oxide, zirconium oxide, hafnium oxide, hafnium aluminum oxide, titanium dioxide and One of a mixture of each other.
  • the dielectric element has a dielectric constant of 5 to 80.
  • the material of the dielectric element is selected from the group consisting of silicon dioxide, silicon nitride, aluminum oxide, silicon germanium oxide, antimony trioxide, antimony oxide, zirconium oxide, hafnium oxide, hafnium aluminum oxide, One of a mixture of titanium dioxide with each other.
  • the dielectric element has a dielectric constant of 5 to 80.
  • the touch panel includes: a substrate; and a touch unit disposed on the substrate, the touch unit includes a first conductive component, a second conductive element, And a dielectric component disposed between the first conductive component and the second conductive component to electrically insulate the first conductive component from the second conductive component.
  • the first conductive element is disposed on the substrate, and the thickness of the dielectric element is less than or equal to 1 micrometer.
  • the first conductive element is composed of a plurality of first axial electrodes extending in a first direction, the first axial electrodes are electrically insulated from each other, and the second conductive elements are formed by a plurality of strips A second axial electrode extending in two directions, the second axial electrodes being electrically insulated from each other, and the first direction intersecting the second direction.
  • the dielectric element covers the first conductive element.
  • the dielectric element is composed of a plurality of dielectric blocks, and the dielectric block is correspondingly disposed at a position where the first axial electrode overlaps with the second axial electrode.
  • the first conductive element includes a plurality of first axial electrodes and a plurality of conductive units
  • the second conductive elements comprise a plurality of electrical wires, wherein the first axial electrodes are electrically insulated from each other, the conductive units are mutually insulated
  • the electrical wiring is electrically insulated from each other, and the electrical wiring is electrically connected to the two adjacent conductive units in a second direction to form a plurality of second axial electrodes.
  • the dielectric component is composed of a plurality of dielectric blocks, and the dielectric block is disposed between the electrical wiring and the first axial electrode to electrically insulate the first axial electrode from the first Two axial electrodes.
  • the first conductive element comprises a plurality of electrical connections
  • the second conductive element comprises a plurality of second axial electrodes and a plurality of conductive units, wherein the second axial electrodes are electrically insulated from each other, the conductive units are mutually insulated
  • the electrical wiring is electrically insulated from each other, and the electrical wiring is electrically connected to the two adjacent conductive units in a first direction to form a plurality of first axial electrodes.
  • the dielectric component is composed of a plurality of dielectric blocks, and the dielectric block is disposed between the electrical wiring and the second axial electrode to electrically insulate the first axial electrode from the first Two axial electrodes.
  • the dielectric component covers the first conductive layer, and a corresponding through hole is disposed at a junction of the electrical wiring and the conductive unit.
  • the substrate material is selected from a glass or a polymer material.
  • the dielectric element has a dielectric constant of 5 to 80.
  • the dielectric element has a thickness of 0.05 ⁇ m or more and 1 ⁇ m or less.
  • the dielectric element has a thickness of 0.05 ⁇ m or more and 0.5 ⁇ m or less.
  • the material of the dielectric component is selected from the group consisting of silicon nitride, aluminum oxide, silicon germanium oxide, antimony trioxide, antimony oxide, zirconium oxide, hafnium oxide, hafnium aluminum oxide, titanium dioxide, and mixtures thereof. One of them.
  • the material of the dielectric element is selected from the group consisting of silicon dioxide, silicon nitride, aluminum oxide, silicon germanium oxide, antimony trioxide, antimony oxide, zirconium oxide, hafnium oxide, hafnium aluminum oxide, One of titanium dioxide and mixtures thereof.
  • the touch panel provided by the present invention not only has the advantage of being thinned, but also has the advantage of high touch sensitivity due to the small distance between the first electrode layer and the second electrode layer.
  • the touch panel provided by the present invention has a high antistatic rating because it uses a material having a higher dielectric constant as a dielectric component. Since the thickness of the dielectric member is reduced, the use of the dielectric insulating material can be reduced, further reducing the cost.
  • FIG. 1 is a schematic cross-sectional view showing the structure of a touch panel according to a first embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a touch panel according to a first embodiment of the present invention.
  • Figure 3 is a cross-sectional view of Figure 2 taken along the line AA';
  • FIG. 4 is a cross-sectional view of a touch panel according to a second embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a touch panel according to a third embodiment of the present invention.
  • Figure 6 is a cross-sectional view taken along line BB' of Figure 5;
  • FIG. 7 is a schematic structural diagram of a touch panel according to a fourth embodiment of the present invention.
  • Figure 8 is a cross-sectional view taken along line CC' of Figure 7;
  • FIG. 9 is a schematic structural diagram of a touch panel according to a fifth embodiment of the present invention.
  • Figure 10 is a cross-sectional view of Figure 9 taken along the line DD';
  • FIG. 11 is a schematic structural diagram of a touch panel according to a sixth embodiment of the present invention.
  • Figure 12 is a cross-sectional view of Figure 11 taken along the line EE'.
  • FIG. 1 is a schematic cross-sectional view showing a structure of a touch panel according to a first embodiment of the present invention.
  • the touch panel 100 includes a substrate 20 and a touch unit 10 .
  • the touch unit 10 is disposed on the substrate 20 .
  • the substrate 20 can be various transparent or opaque materials, and is not limited to a rigid substrate or a flexible substrate such as glass or polycarbonate.
  • PC polyethylene terephthalate
  • PET polymethylmethacrylate
  • PMMA polymethylmethacrylate
  • PES polysulfone
  • the touch unit 10 includes a first conductive element 11 , a dielectric element 12 , and a second conductive element 13 .
  • the first conductive element 11 is disposed on the substrate 20.
  • the second conductive element 13 is disposed above the first conductive element 11.
  • the dielectric element 12 is disposed between the first conductive element 11 and the second conductive element 13 to electrically insulate the first conductive element 11 from the second conductive element 13.
  • FIG. 2 is a schematic structural view of a touch panel according to a first embodiment of the present invention
  • FIG. 3 is a cross-sectional view taken along line AA' of FIG.
  • the first conductive element 11 includes a plurality of strip-shaped first axial electrodes 111 extending along a first direction X. Each of the first axial electrodes 111 is electrically insulated from each other; the second conductive element 13 includes a plurality of strips along the first
  • the second axial direction 131 extends in the second direction Y, and each of the second axial electrodes 131 is electrically insulated from each other.
  • the first direction X intersects the second direction Y.
  • the first axial electrode 111 and the second axial electrode 131 are electrically connected to a controller (not shown).
  • each of the first axial electrodes 111 is regarded as a lateral electrode
  • each of the second axial electrodes 131 is regarded as a longitudinal electrode
  • the first direction X is preferably perpendicular to the second direction Y, but is not This is limited to this.
  • the elongated first axial electrode 111 and the elongated second axial electrode 131 are rectangular, but may actually have different variations.
  • the elongated first axial electrode 111 and the elongated second axial electrode 131 may be formed by connecting electrode units of different shapes, and the shape of the electrode unit may be a triangle, a diamond, a square, a regular hexagon or the like.
  • the material of the first conductive element 11 and the second conductive element 13 may be a solid conductive material or a liquid conductive material.
  • the solid conductive material is, for example, indium tin oxide (Indium Tin) Oxides, ITO), Indium Zinc Oxide (IZO), Zinc oxide doping 3 oxidation 2 aluminium, AZO) is an opaque conductive material such as a transparent conductive material or a metal.
  • the liquid conductive material is, for example, a nanometer conductive atom such as nano silver, a carbon nanotube, a poly(3,4-ethylenedioxythiophene)-polystyrenesulfonic acid (Poly(3,4–) Ethylenedioxythiophene) poly (styrene sulfonate), Transparent conductive materials such as PEDOT: PSS), or opaque conductive materials such as metals.
  • the above metal is, for example, gold, silver or copper.
  • a dielectric element 12 is formed on the first conductive element 11, and the dielectric element 12 covers the first conductive element 11 and the thickness of the dielectric element 12 is less than or equal to 1 micrometer.
  • Each of the first axial electrodes 111 and the second axial electrodes 131 are arranged in a crosswise manner and partially overlap each other, and the dielectric elements 12 are insulated from each other.
  • a capacitor array can be formed in the touch panel 100.
  • the touch object When the user touches a touch object (such as a finger or other conductive object), the touch object is capacitively coupled to the first conductive element 11 and the second conductive element 13 respectively, and can be utilized in each area of the capacitor array.
  • the potential is changed for detection to achieve the effect of touch sensing.
  • the dielectric element 12 has a dielectric constant of 5 to 80.
  • the dielectric element 12 formation process does not require excessive adjustment of manufacturing equipment and manufacturing process conditions, and does not require excessive cost and good yield.
  • the material of the dielectric element 12 may be selected from silicon nitride (Si3N4), aluminum oxide (Al2O3), silicon germanium oxide (HfSiO4), antimony trioxide (Y2O3), tantalum oxide (Ta2O3), zirconium oxide (ZrO2).
  • Ta 2 O 3 tantalum oxide
  • yttrium oxide-yttrium silicon oxide Ta 2 O 3 - HfSiO2
  • cerium oxide-silicon dioxide Ta2O3-SiO2
  • silicon dioxide-yttria-yttrium silicon oxide SiO2-Ta2O3-HfSiO2
  • the touch panel 100 is combined with the display panel.
  • the touch panel 100 works in combination with the display panel.
  • the display panel is disposed on the display panel; the second is that the touch panel 100 is separated from the display panel.
  • the substrate 20 is a transparent substrate, and the materials of the first conductive component 11 and the second conductive component 13 are selected.
  • Transparent conductive material The thinner the thickness of the dielectric element 12, The higher the light transmittance of the dielectric element 12, the higher the light transmittance of the touch panel 100.
  • the substrate 20 may be a non-transparent substrate, and the material of the first conductive element 11 and the second conductive element 13 may be a transparent conductive material, and a non-transparent conductive material may be used.
  • FIG. 4 is a cross-sectional view of a touch panel according to a second embodiment of the present invention.
  • the touch panel 200 includes a substrate 20 and a touch unit 10 .
  • the touch unit 10 includes a first conductive element 11 , a dielectric element 12 , and a second conductive element 13 .
  • the first conductive element 11 includes a plurality of strip-shaped first axial electrodes 111 extending along a first direction, and each of the first axial electrodes 111 is electrically insulated from each other;
  • the second conductive element 13 includes a plurality of strips along the first
  • the elongated second axial electrodes 131 extend in two directions, and the second axial electrodes 131 are electrically insulated from each other.
  • the difference between the touch panel 200 and the touch panel 100 of the first preferred embodiment is that the dielectric component 12 is composed of a plurality of dielectric blocks 121, and the dielectric block 121 is disposed on the first axial electrode 111 and the second axis.
  • the first axial electrode 111 and the second axial electrode 131 are electrically insulated between the electrode 131 and the first axial electrode 111 and the second axial electrode 131.
  • the touch panel 200 works in combination with the display panel. Set on the display panel; the second is The touch panel 200 is separated from the display panel.
  • the substrate 20 is a transparent substrate, and the materials of the first conductive component 11 and the second conductive component 13 are selected. Transparent conductive material. The thinner the thickness of the dielectric block 121 is, the higher the light transmittance of the dielectric block 121 is, and the higher the light transmittance of the touch panel 200 is, and the smaller the chromatic aberration is.
  • the substrate 20 may be a non-transparent substrate, and the material of the first conductive element 11 and the second conductive element 13 may be a transparent conductive material.
  • FIG. 5 is a schematic structural view of a touch panel according to a third embodiment of the present invention
  • FIG. 6 is a cross-sectional view of FIG. 5 taken along line BB'.
  • the touch panel 300 includes a substrate 20 and a touch unit 10 .
  • the touch unit 10 includes a first conductive element 11 , a dielectric element 12 , and a second conductive element 13 .
  • the touch panel 300 is different from the touch panel 100 of the first preferred embodiment in that the first conductive element 11 includes a plurality of strip-shaped first axial electrodes 111 extending in a first direction X and a plurality of Conductive unit 113.
  • Each of the first axial electrodes 111 is electrically insulated from each other, and each of the conductive units 113 is electrically insulated from each other, and each of the first axial electrodes 111 is electrically insulated from each of the conductive units 113; and the second conductive element 13 includes a plurality of electrical wires 132.
  • the electrical connection 132 electrically connects the two adjacent conductive units 113 to form a plurality of second axial electrodes 131.
  • the dielectric element 12 is composed of a plurality of dielectric blocks 121.
  • the dielectric block 121 is disposed between the electrical wiring 132 and the first axial electrode 111 to electrically insulate the first axial electrode 111 and the second axial electrode 131.
  • the thickness of the dielectric block 121 is 1 ⁇ m or less.
  • the dielectric block 121 has a dielectric constant of 5 to 80.
  • the material of the dielectric element dielectric element 12 may be selected from the group consisting of silicon nitride (Si3N4), aluminum oxide (Al2O3), silicon germanium oxide (HfSiO4), antimony trioxide (Y2O3), tantalum oxide (Ta2O3), oxidation.
  • Zirconium zirconium (ZrO2), cerium oxide (HfO2), lanthanum aluminum oxide (LnAlO3), titanium dioxide (TiO2), and mixtures thereof, etc., for example, tantalum oxide (Ta2O3), yttrium oxide-yttrium silicon oxide (Ta2O3- HfSiO2), yttrium oxide-silicon dioxide (Ta2O3-SiO2), silicon dioxide-yttria-yttrium silicon oxide (SiO2-Ta2O3- HfSiO2) and the like.
  • the touch panel 300 is combined with the display panel.
  • the first one is that the touch panel 300 is combined with the display panel and disposed on the display panel.
  • the second is that the touch panel 300 is separated from the display panel.
  • the substrate 20 is a transparent substrate
  • the material of the first conductive component 11 is made of a transparent conductive material. The thinner the thickness of the dielectric block 121 is, the higher the light transmittance of the dielectric block 121 is, and the light transmittance of the touch panel 300 is also higher and the chromatic aberration is smaller.
  • the substrate 20 may be a non-transparent substrate, and the material of the first conductive element 11 may be a transparent conductive material, and a non-transparent conductive material may be selected.
  • FIG. 7 is a schematic structural view of a touch panel according to a fourth embodiment of the present invention
  • FIG. 8 is a cross-sectional view taken along line CC' of FIG.
  • the touch panel 400 includes a substrate 20 and a touch unit 10 .
  • the touch unit 10 includes a first conductive element 11 , a dielectric element 12 , and a second conductive element 13 .
  • the touch panel 400 is different from the touch panel 100 of the first preferred embodiment in that the first conductive element 11 includes a plurality of strip-shaped first axial electrodes 111 extending in a first direction X and a plurality of Conductive unit 113.
  • Each of the first axial electrodes 111 is electrically insulated from each other, and each of the conductive units 111 is electrically insulated from each other, and each of the first axial electrodes 111 is electrically insulated from each of the conductive units 113.
  • the second conductive element 13 has a plurality of electrical connections 132.
  • the dielectric element 12 covers the first axial electrode 111 of the first conductive element 11 , the conductive unit 113 , and the substrate 20 , and a corresponding through hole 122 is disposed at the connection of the electrical wire 132 and the conductive unit 113 to electrically connect the electrical wire 132 .
  • the two adjacent conductive units 113 form a plurality of second axial electrodes 131 and electrically insulate the first axial electrodes 111 and the second axial electrodes 131.
  • the dielectric element 12 has a thickness of 1 micrometer or less.
  • the dielectric element 12 has a dielectric constant of 5 to 80.
  • the material of the dielectric element 12 may be selected from silicon nitride (Si3N4), aluminum oxide (Al2O3), silicon germanium oxide (HfSiO4), antimony trioxide (Y2O3), tantalum oxide (Ta2O3), zirconium oxide (ZrO2).
  • tantalum oxide Ta 2 O 3
  • yttrium oxide-yttrium silicon oxide Ta 2 O 3 - HfSiO2
  • yttrium oxide-silicon dioxide Ta2O3-SiO2
  • silicon dioxide-yttria-yttrium silicon oxide SiO2-Ta2O3- HfSiO2 and the like.
  • the touch panel 400 is combined with the display panel.
  • the first one is that the touch panel 400 is combined with the display panel and disposed on the display panel.
  • the second is that the touch panel 400 is separated from the display panel.
  • the substrate 20 is a transparent substrate
  • the material of the first conductive component 11 is made of a transparent conductive material. The thinner the thickness of the dielectric element 12, the higher the light transmittance of the dielectric element 12, and the higher the light transmittance of the touch panel 400.
  • the substrate 20 may be a non-transparent substrate, and the material of the first conductive element 11 may be a transparent conductive material, and a non-transparent conductive material may be selected.
  • FIG. 9 is a schematic structural view of a touch panel according to a fifth embodiment of the present invention
  • FIG. 10 is a cross-sectional view of FIG. 9 taken along the line DD'.
  • the touch panel 500 includes a substrate 20 and a touch unit 10 .
  • the touch unit 10 includes a first conductive element 11 , a dielectric element 12 , and a second conductive element 13 .
  • the touch panel 500 is different from the touch panel 100 of the first preferred embodiment in that the first conductive element 11 includes a plurality of electrical wires 112, and the second conductive element 13 includes a plurality of strips extending in the second direction Y.
  • Each of the second axial electrodes 131 is electrically insulated from each other, and each of the conductive units 133 is electrically insulated from each other, and the second axial electrodes 131 and the conductive units 133 are insulated from each other.
  • Each of the electrical wires 112 is electrically connected to two adjacent conductive units 133 to form a plurality of first axial electrodes 111.
  • the dielectric component 12 is composed of a plurality of dielectric blocks 121.
  • the dielectric block 121 is disposed between the electrical wiring 112 and the second axial electrode 131, and completely covers the electrical wiring 112 to electrically insulate the electrical wiring 112 and the second axial direction. Electrode 131.
  • the thickness of the dielectric block 121 is 1 ⁇ m or less.
  • the dielectric block 121 has a dielectric constant of 5 to 80.
  • the material of the dielectric element dielectric element 12 may be selected from the group consisting of silicon nitride (Si3N4), aluminum oxide (Al2O3), silicon germanium oxide (HfSiO4), antimony trioxide (Y2O3), tantalum oxide (Ta2O3), oxidation.
  • Zirconium zirconium (ZrO2), cerium oxide (HfO2), lanthanum aluminum oxide (LnAlO3), titanium dioxide (TiO2), and mixtures thereof, etc., for example, tantalum oxide (Ta2O3), yttrium oxide-yttrium silicon oxide (Ta2O3- HfSiO2), yttrium oxide-silicon dioxide (Ta2O3-SiO2), silicon dioxide-yttria-yttrium silicon oxide (SiO2-Ta2O3- HfSiO2) and the like.
  • the touch panel 500 is combined with the display panel.
  • the touch panel 500 is combined with the display panel and disposed on the display panel; the second is that the touch panel 500 is separated from the display panel.
  • the substrate 20 is a transparent substrate, and the material of the second conductive component 13 is made of a transparent conductive material.
  • the substrate 20 may be a non-transparent substrate, and the material of the second conductive component 13 may be a transparent conductive material, and a non-transparent conductive material may be selected.
  • FIG. 11 is a schematic structural view of a touch panel according to a sixth embodiment of the present invention
  • FIG. 12 is a cross-sectional view of FIG. 11 taken along the line EE'.
  • the touch panel 600 includes a substrate 20 and a touch unit 10 .
  • the touch unit 10 includes a first conductive element 11 , a dielectric element 12 , and a second conductive element 13 .
  • the touch panel 600 is different from the touch panel 100 of the first preferred embodiment in that the first conductive element 11 includes a plurality of electrical wires 112, and the first conductive element 13 includes a plurality of strips extending in the second direction Y.
  • the dielectric component 12 covers the plurality of electrical wires 112 and the substrate 20, and corresponding vias 122 are disposed at the junction of the electrical wires 112 and the conductive unit 133, so that the electrical wires 112 are electrically connected to the two adjacent conductive units 133 to form a plurality of An axial electrode 111 and an electrically insulating first axial electrode 111 and a second axial electrode 131.
  • the dielectric element 12 has a thickness of 1 micrometer or less.
  • the dielectric block 121 has a dielectric constant of 5 to 80.
  • the material of the dielectric element 12 may be selected from silicon nitride (Si3N4), aluminum oxide (Al2O3), silicon germanium oxide (HfSiO4), antimony trioxide (Y2O3), tantalum oxide (Ta2O3), zirconium oxide (ZrO2).
  • tantalum oxide Ta 2 O 3
  • yttrium oxide-yttrium silicon oxide Ta 2 O 3 - HfSiO2
  • yttrium oxide-silicon dioxide Ta2O3-SiO2
  • silicon dioxide-yttria-yttrium silicon oxide SiO2-Ta2O3- HfSiO2 and the like.
  • the touch panel 600 is combined with the display panel.
  • the first one is that the touch panel 600 is combined with the display panel and disposed on the display panel.
  • the second is that the touch panel 500 is separated from the display panel.
  • the touch panel 600 is combined with the display panel, it is disposed on the display panel for performing a touch operation on the display panel.
  • the substrate 20 is a transparent substrate, and the material of the first electrode layer 11 is made of a transparent conductive material. The thinner the thickness of the dielectric element 12, the higher the light transmittance of the dielectric element 12, and the higher the light transmittance of the touch panel 600.
  • the substrate 20 may be a non-transparent substrate, and the material of the first electrode layer 11 may be a transparent conductive material, and a non-transparent conductive material may be selected.
  • the touch panel provided by the present invention such as the touch panels 100, 200, 300, 400, 500, and 600 described above, has a thinner thickness of the dielectric member 12 because the thickness of the dielectric member 12 is less than or equal to 1 micrometer.
  • the touch panel provided by the present invention has a high antistatic rating.
  • the dielectric element 12 of the touch panel provided by the present invention has a thickness of 1 micrometer, and the anti-static level of the touch panel of different dielectric constants is tested by air discharge, and the result shows that the electrostatic voltage is greater than 100V. It can be seen from the results that when the film thickness is constant, the ratio of the antistatic level of the touch panel to the dielectric constant k is proportional. Please refer to Table 1.
  • dielectric element materials corresponding to the values of the dielectric constants in Table 1 and Table 2 are merely illustrative, and the invention is not limited thereto.
  • the touch panel provided by the present invention not only has the advantage of being thinned, but also has the advantage of high touch sensitivity due to the smaller distance between the first electrode layer and the second electrode layer.
  • the touch panel provided by the present invention has a high antistatic rating because it uses a material having a higher dielectric constant as a dielectric component. Since the thickness of the dielectric member is reduced, the use of the dielectric insulating material can be reduced, further reducing the cost.
  • the touch panel provided by the present invention has better light transmittance and less chromatic aberration.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)

Abstract

本发明涉及触控技术领域，提供了触控面板，包括一基板及触控单元，所述触控单元设置于所述基板上。其中所述触控单元包括一第一导电元件、一第二导电元件及一介电元件。其中，所述第一导电单元设置于基板上，所述介电元件设置于所述第一导电元件与所述第二导电元件之间，以使所述第一导电单元与所述第二导电单元电性绝缘。且所述介电元件的厚度小于等于1微米，进而有利于触控面板薄型化。

Description

触控单元及触控面板 技术领域
本发明涉及触控技术，尤其涉及一种触控单元及采用该触控单元的触控面板。
背景技术
近年来，随着触控技术的不断发展，采用集合有触控功能与显示功能的触控显示面板的电子产品越来越多, 如移动电话(mobile phone)、卫星导航系统(GPS navigator system)、平板计算机(tablet PC)、个人数字助理(PDA)以及笔记本电脑(laptop PC)等。目前，触控面板的技术发展非常多样化，较常见的技术包括电阻式、电容式、光学式等。其中，电容式触控技术由于具有高准确率、多点触控、高耐用性、高触控分辨率等特点，已成为目前中高阶消费性触控电子产品使用之主流触控技术。
以电容式触控技术为基础的电容式触控面板得到广泛应用。通常，电容式触控面板包括盖板、基板及电容触控感应原件等结构。其中，盖板用于接受触碰操作并保护其他组件，基板用于承载其他组件，电容触控感应元件用于感应触碰操作以产生电容变化，并转换为相应感应信号。对于消费性电子产品而言，轻薄化是用户的一贯需求，也是厂商孜孜追求的目标。一直以来，各种手段包括减少组件数量、修改组件尺寸都陆续被提出以改进电容式触控面板。但即便如此，在触控面板产品的设计上如何进一步实现薄型化依然是个重要课题。
发明内容
本发明要解决的技术问题是提供一种薄型化的触控单元及触控面板，这种触控单元及触控面板通过减薄介电元件的厚度，进而实现触控面板薄型化。
本发明提供一种触控单元，包括一第一导电元件；一第二导电元件；以及一介电元件，所述介电元件设置在所述第一导电元件与所述第二导电元件之间，且以使所述第一导电元件与所述第二导电元件电性绝缘，其中所述介电元件的厚度小于等于1微米。
进一步的，所述介电元件的介电常数为5~80。
进一步的，所述介电元件的厚度大于等于0.05微米且小于等于1微米。所述介电元件的厚度大于等于0.05微米且小于等于0.5微米。
进一步的，所述的介电元件的材料选自氮化硅、三氧化二铝、铪硅氧化物、三氧化二钇、氧化钽、氧化锆、二氧化铪、镧铝氧化物、二氧化钛及其相互间混合物中的一种。所述的介电元件的介电常数为5~80。
进一步的，所述介电元件的材料选自二氧化硅、氮化硅、三氧化二铝、铪硅氧化物、三氧化二钇、氧化钽、氧化锆、二氧化铪、镧铝氧化物、二氧化钛相互间混合物中的一种。所述的介电元件的介电常数为5~80。
本发明提供一种触控面板，包括：一基板；及一触控单元，设置于所述基板上, 所述触控单元包括一第一导电元件, 一第二导电元件, 以及一介电元件，设置于所述第一导电元件与所述第二导电元件之间，以使所述第一导电元件与所述第二导电元件电性绝缘。其中所述第一导电元件设置于所述基板上，所述介电元件的厚度小于等于1微米。
进一步的，所述第一导电元件是由复数条沿第一方向延伸的第一轴向电极组成，所述第一轴向电极彼此电性绝缘，所述第二导电元件是由复数条沿第二方向延伸的第二轴向电极组成，所述第二轴向电极彼此电性绝缘，且所述第一方向与所述第二方向相交。所述介电元件覆盖所述第一导电元件。或者，所述介电元件由复数介电块组成，所述介电块对应设置在所述第一轴向电极与所述第二轴向电极重叠位置。
进一步的，所述第一导电元件包含复数第一轴向电极及复数导电单元，所述第二导电元件包含复数电接线，其中所述第一轴向电极彼此电性绝缘，所述导电单元彼此相互电性绝缘，所述电接线沿一第二方向电性连接两相邻的所述导电单元，以形成复数第二轴向电极。所述介电元件由复数介电块组成，所述介电块对应设置在所述电接线与所述第一轴向电极之间，以电性绝缘所述第一轴向电极与所述第二轴向电极。或者，所述第一导电元件包含复数电连线，所述第二导电元件包含复数第二轴向电极及复数导电单元，其中所述第二轴向电极彼此电性绝缘，所述导电单元彼此相互电性绝缘，所述电接线沿一第一方向电性连接两相邻的所述导电单元，以形成复数第一轴向电极。所述介电元件由复数介电块组成，所述介电块对应设置在所述电接线与所述第二轴向电极之间，以电性绝缘所述第一轴向电极与所述第二轴向电极。其中所述介电元件覆盖所述第一导电层，且于所述电接线与所述导电单元连接处设置相应穿孔。
进一步的，所述基板材料选自玻璃或者高分子材料。
进一步的，所述介电元件的介电常数为5~80。
进一步的，所述介电元件的厚度大于等于0.05微米且小于等于1微米。或者，所述介电元件的厚度大于等于0.05微米且小于等于0.5微米。
进一步的，所述介电元件的材料选自氮化硅、三氧化二铝、铪硅氧化物、三氧化二钇、氧化钽、氧化锆、二氧化铪、镧铝氧化物、二氧化钛及其混合物中的一种。
进一步的，所述介电元件的材料选自二氧化硅、氮化硅、三氧化二铝、铪硅氧化物、三氧化二钇、氧化钽、氧化锆、二氧化铪、镧铝氧化物、二氧化钛及其混合物中的一种。
本发明提供的触控面板不仅具有薄型化的优点，由于第一电极层与第二电极层的距离变小还具有触控灵敏度高的优势。另外，本发明提供的触控面板由于通过选用较高的介电常数的材料作为介电元件，因此还具有较高的抗静电等级。由于介电元件的厚度减薄，还可减少介电绝缘材料的使用，进一步的降低成本。
附图说明
图1是本发明第一实施例的触控面板的结构断面示意图；
图2是本发明第一实施例提供的触控面板的结构示意图；
图3是图2沿剖面线AA’方向的剖面图；
图4是本发明第二实施例提供的触控面板剖面图；
图5是本发明第三实施例提供的触控面板的结构示意图；
图6是图5沿剖面线BB’方向的剖面图；
图7是本发明第四实施例提供的触控面板的结构示意图；
图8是图7沿剖面线CC’方向的剖面图；
图9是本发明第五实施例提供的触控面板的结构示意图；
图10是图9沿剖面线DD’方向的剖面图；
图11是本发明第六实施例提供的触控面板的结构示意图；以及
图12是图11沿剖面线EE’方向的剖面图。
具体实施方式
下面结合附图与具体实施方式对本发明作进一步详细描述。
如图1所示，图1是本发明第一实施例的触控面板的结构断面示意图。触控面板100包括基板20及触控单元10。其中，触控单元10设置在基板20之上。
基板20可为各种透明或不透明材料，不限于硬质基板或是可挠式基板，例如玻璃或者聚碳酸脂（polycarbonate, PC）、聚对苯二甲酸乙二脂(polyethylene terephthalate, PET)、聚甲基丙烯酸甲脂(polymethylmethacrylate, PMMA)、聚砜(Polysulfone, PES)、其他环烯共聚物（cyclic olefin copolymer）等高分子材料。。
触控单元10包括第一导电元件11、介电元件12以及第二导电元件13。第一导电元件11设置在基板20上。第二导电元件13设置在第一导电元件11之上。介电元件12设置在第一导电元件11与第二导电元件13之间,以使第一导电元件11与第二导电元件13电性绝缘。
结合图2和图3，图2是本发明第一实施例提供的触控面板的结构示意图，图3是图2沿剖面线AA’方向的剖面图。第一导电元件11包括复数条沿一第一方向X延伸的呈长条形第一轴向电极111组成，各第一轴向电极111彼此电性绝缘；第二导电元件13包括复数条沿一第二方向Y延伸的呈长条形第二轴向电极131，各第二轴向电极131彼此电性绝缘。第一方向X与第二方向Y相交。第一轴向电极111与第二轴向电极131电连接于一控制器（图未示）。在本实施例中，各第一轴向电极111视为一横向电极，各第二轴向电极131视为一纵向电极，且第一方向X较佳是垂直于第二方向Y，但并不以此为限。
在本实施例中，长条形的第一轴向电极111与长条形的第二轴向电极131为长方形，但实际上可有不同的变化。长条形的第一轴向电极111与长条形的第二轴向电极131可为不同形状的电极单元连接而成，电极单元的形状可为三角形、菱形、正方形、正六边形等。
第一导电元件11和第二导电元件13的材料可以是固体导电材料或是液体导电材料。固体导电材料例如为铟锡氧化物(Indium Tin Oxides, ITO)、铟锌氧化物(Indium Zinc Oxide, IZO)、铝锌氧化物(Zinc oxide doping 3 oxidation 2 aluminium, AZO)等透明导电材料或金属等不透明导电材料。液体导电材料例如为奈米银等奈米导电原子，奈米碳管、聚(3,4-乙烯二氧噻吩)-聚苯乙烯磺酸(Poly(3,4– ethylenedioxythiophene) poly (styrene sulfonate), PEDOT：PSS)等透明导电材料，或者金属等不透明导电材料等。上述金属例如为金、银或铜。
在第一导电元件11上形成介电元件12，介电元件12覆盖第一导电元件11上且介电元件12的厚度小于等于1微米。
各第一轴向电极111与各第二轴向电极131交叉排列且彼此部分重叠，藉由介电元件12彼此绝缘, 可于触控面板100中形成一电容阵列。当使用者利用一触控物件（如手指或其他导电物体）触碰时，触控物件分别与第一导电元件11及第二导电元件13产生电容耦合，可利用在此电容阵列上各区域的电位产生变化进行侦测，以达到触控感应的效果。介电元件12厚度越小，可使第一导电元件11与第二导电元件13之间的距离越小，触控灵敏度越高。介电元件12的介电常数为5~80。介电元件12的介电常数越高，其阻抗值越高，抗静电能力越好。当介电元件12的厚度大于等于0.05微米，介电元件12形成过程不需要对制造设备与制造工艺条件进行过多调整，不需耗费过多成本，且良率好。
介电元件12的材料可以选自氮化硅(Si3N4)、三氧化二铝（Al2O3）、铪硅氧化物（HfSiO4）、三氧化二钇（Y2O3）、氧化钽（Ta2O3）、氧化锆（ZrO2）、二氧化铪（HfO2）、镧铝氧化物（LnAlO3）、二氧化钛（TiO2）及其混合物等，例如是氧化钽（Ta2O3）、氧化钽-铪硅氧化物（Ta2O3- HfSiO2）、氧化钽-二氧化硅（Ta2O3-SiO2）、二氧化硅-氧化钽-铪硅氧化物（SiO2- Ta2O3- HfSiO2）等。
在实际应用中, 触控面板100与显示面板的结合有两种情况。其一为，触控面板100与显示面板组合工作, 设置于显示面板上；其二为，触控面板100与显示面板分离工作。当触控面板100与显示面板组合工作时，即设置于显示面板上用于对显示面板进行触控操作时，基板20选用透明基板，且第一导电元件11与第二导电元件13的材料选用透明的导电材料。介电元件12的厚度越薄, 介电元件12的透光率越高，进而触控面板100的透光率也随之越高。当上述触控面板100与显示面板分离工作时，基板20可以是非透明基板，且第一导电元件11与第二导电元件13的材料选用透明的导电材料可以选用非透明的导电材料。
下文将针对本发明之触控面板的不同实施例进行说明，且为简化说明，以下说明主要针对各实施例不同之处进行详述，而不再对相同之处作重复赘述。此外，本发明之各实施例中相同之组件是以相同之标号进行标示，以利于各实施例间互相对照。
如图4所示，图4是本发明第二实施例提供的触控面板剖面图。本实施例提供一种触控面板200包括基板20及触控单元10。其中触控单元10包括第一导电元件11、介电元件12以及第二导电元件13。第一导电元件11包括复数条沿一第一方向延伸的呈长条形第一轴向电极111组成，各第一轴向电极111彼此电性绝缘；第二导电元件13包括复数条沿一第二方向延伸的呈长条形第二轴向电极131，各第二轴向电极131彼此电性绝缘。触控面板200与上述第一较佳实施例之触控面板100不同的地方在于，介电元件12由复数介电块121组成，介电块121设置在第一轴向电极111与第二轴向电极131之间，並对应在第一轴向电极111与第二轴向电极131重叠位置，以电性绝缘第一轴线电极111与第二轴向电极131。
在实际应用中，触控面板200与显示面板的结合有两种情况。其一为，触控面板200与显示面板组合工作, 设置于显示面板上；其二为, 触控面板200与显示面板分离工作。当触控面板200与显示面板组合工作时，即设置于显示面板上用于对显示面板进行触控操作时，基板20选用透明基板，且第一导电元件11与第二导电元件13的材料选用透明的导电材料。介电块121的厚度越薄，介电块121的透光率越高，进而触控面板200的透光率也随之越高且色差随之越小。当上述触控面板200与显示面板分离工作时，基板20可以是非透明基板，且第一导电元件11与第二导电元件13的材料选用透明的导电材料可以选用非透明的导电材料。
结合图5和图6，图5是本发明第三实施例提供的触控面板的结构示意图，图6是图5沿剖面线BB’方向的剖面图。本实施例提供触控面板300包括基板20及触控单元10。其中触控单元10包括第一导电元件11、介电元件12以及第二导电元件13。触控面板300与上述第一较佳实施例之触控面板100不同的地方在于，第一导电元件11包含复数条沿一第一方向X延伸的呈长条形第一轴向电极111及复数导电单元113。其中，各第一轴向电极111彼此电性绝缘，各导电单元113彼此电性绝缘，且各第一轴向电极111与各导电单元113电性绝缘；第二导电元件13包括复数电接线132，电接线132电性连接两相邻的所述导电单元113，以形成复数第二轴向电极131。
介电元件12由复数介电块121组成，介电块121对应设置在电接线132与第一轴向电极111之间，以电性绝缘第一轴向电极111与第二轴向电极131。介电块121的厚度小于等于1微米。介电块121的介电常数为5~80。介电元件介电元件12的材料可以选自氮化硅(Si3N4)、三氧化二铝（Al2O3）、铪硅氧化物（HfSiO4）、三氧化二钇（Y2O3）、氧化钽（Ta2O3）、氧化锆（ZrO2）、二氧化铪（HfO2）、镧铝氧化物（LnAlO3）、二氧化钛（TiO2）及其混合物等，例如是氧化钽（Ta2O3）、氧化钽-铪硅氧化物（Ta2O3- HfSiO2）、氧化钽-二氧化硅（Ta2O3-SiO2）、二氧化硅-氧化钽-铪硅氧化物（SiO2- Ta2O3- HfSiO2）等。介电元件介电元件12的介电常数越高, 其阻抗值越高，抗静电能力越好。
在实际应用中, 触控面板300与显示面板的结合有两种情况。其一为，触控面板300与显示面板组合工作，设置于显示面板上；其二为，触控面板300与显示面板分离工作。当触控面板300与显示面板组合工作时，即设置于显示面板上用于对显示面板进行触控操作时，基板20选用透明基板，且第一导电元件11的材料选用透明的导电材料。介电块121的厚度越薄，介电块121的透光率越高，进而触控面板300的透光率也随之越高且色差随之越小。当上述触控面板300并非与显示面板结合时，基板20可以是非透明基板，且且第一导电元件11的材料选用透明的导电材料可以选用非透明的导电材料。
结合图7和图8，图7是本发明第四实施例提供的触控面板的结构示意图，图8是图7沿剖面线CC’方向的剖面图。本实施例提供触控面板400包括基板20、及触控单元10。其中触控单元10包括第一导电元件11、介电元件12以及第二导电元件13。触控面板400与上述第一较佳实施例之触控面板100不同的地方在于，第一导电元件11包含复数条沿一第一方向X延伸的呈长条形第一轴向电极111及复数导电单元113。其中，各第一轴向电极111彼此电性绝缘，各导电单元111彼此电性绝缘，且各第一轴向电极111与各导电单元113电性绝缘。第二导电元件13具包括复数电接线132。
介电元件12覆盖第一导电元件11的第一轴向电极111、导电单元113以及基板20，且在电接线132与导电单元113连接处设置相应的穿孔122，以使电接线132电性连接两相邻的所述导电单元113形成复数第二轴向电极131且电性绝缘第一轴向电极111与第二轴向电极131。介电元件12的厚度小于等于1微米。介电元件12的介电常数为5~80。介电元件12的材料可以选自氮化硅(Si3N4)、三氧化二铝（Al2O3）、铪硅氧化物（HfSiO4）、三氧化二钇（Y2O3）、氧化钽（Ta2O3）、氧化锆（ZrO2）、二氧化铪（HfO2）、镧铝氧化物（LnAlO3）、二氧化钛（TiO2）及其混合物等，例如是氧化钽（Ta2O3）、氧化钽-铪硅氧化物（Ta2O3- HfSiO2）、氧化钽-二氧化硅（Ta2O3-SiO2）、二氧化硅-氧化钽-铪硅氧化物（SiO2- Ta2O3- HfSiO2）等。介电元件12的介电常数越高，其阻抗值越高，抗静电能力越好。
在实际应用中，触控面板400与显示面板的结合有两种情况。其一为，触控面板400与显示面板组合工作，设置于显示面板上；其二为，触控面板400与显示面板分离工作。当触控面板400与显示面板组合工作时，即设置于显示面板上用于对显示面板进行触控操作时，基板20选用透明基板，且第一导电元件11的材料选用透明的导电材料。介电元件12的厚度越薄，介电元件12的透光率越高，进而触控面板400的透光率也越高。当上述触控面板400与显示面板分离工作时，基板20可以是非透明基板，且第一导电元件11的材料选用透明的导电材料可以选用非透明的导电材料。
结合图9和图10，图9是本发明第五实施例提供的触控面板的结构示意图，图10是图9沿剖面线DD’方向的剖面图。本实施例提供触控面板500包括基板20及触控单元10。其中触控单元10包括第一导电元件11、介电元件12以及第二导电元件13。触控面板500与上述第一较佳实施例之触控面板100不同的地方在于，第一导电元件11包括复数电接线112，第二导电元件13包括复数条沿第二方向Y延伸的呈长条形第二轴向电极131及复数导电单元133。其中，各第二轴向电极131彼此电性绝缘，各导电单元133彼此电性绝缘，且第二轴向电极131与导电单元133彼此绝缘。其中各电接线112电性连接两相邻的所述导电单元133，以形成复数第一轴向电极111。
介电元件12由复数介电块121组成，介电块121对应设置在电接线112与第二轴向电极131之间，并完全覆盖电接线112以电性绝缘电接线112与第二轴向电极131。介电块121的厚度小于等于1微米。介电块121的介电常数为5~80的材料。介电元件介电元件12的材料可以选自氮化硅(Si3N4)、三氧化二铝（Al2O3）、铪硅氧化物（HfSiO4）、三氧化二钇（Y2O3）、氧化钽（Ta2O3）、氧化锆（ZrO2）、二氧化铪（HfO2）、镧铝氧化物（LnAlO3）、二氧化钛（TiO2）及其混合物等，例如是氧化钽（Ta2O3）、氧化钽-铪硅氧化物（Ta2O3- HfSiO2）、氧化钽-二氧化硅（Ta2O3-SiO2）、二氧化硅-氧化钽-铪硅氧化物（SiO2- Ta2O3- HfSiO2）等。介电元件介电元件12的介电常数越高，其阻抗值越高，抗静电能力越好。
在实际应用中，触控面板500与显示面板的结合有两种情况。其一为，触控面板500与显示面板组合工作，设置于显示面板上；其二为，触控面板500与显示面板分离工作。当触控面板500与显示面板组合工作时，即设置于显示面板上用于对显示面板进行触控操作时，基板20选用透明基板，且第二导电元件13的材料选用透明的导电材料。介电块121的厚度越薄，介电块121的透光率越高，进而触控面板500的透光率也随之越高且色差随之越小。当上述触控面板500与显示面板分开工作时，基板20可以是非透明基板，且第二导电元件13的材料选用透明的导电材料可以选用非透明的导电材料。
结合图11和图12，图11是本发明第六实施例的触控面板的结构示意图，图12是图11沿剖面线EE’方向的剖面图。本实施例提供触控面板600包括基板20及触控单元10。其中触控单元10包括第一导电元件11、介电元件12以及第二导电元件13。触控面板600与上述第一较佳实施例之触控面板100不同的地方在于，第一导电元件11包括复数电接线112，第一导电元件13包括复数条沿第二方向Y延伸的呈长条形第二轴向电极131及复数导电单元133。其中各第二轴向电极131彼此电性绝缘，各导电单元133彼此电性绝缘，第二轴向电极131与导电单元133电性绝缘。
介电元件12覆盖复数电接线112及基板20，且在电接线112与导电单元133连接处设置相应的穿孔122，以使电接线112电性连接两相邻的所述导电单元133形成复数第一轴向电极111以及电性绝缘第一轴向电极111与第二轴向电极131。介电元件12的厚度小于等于1微米。介电块121的介电常数为5~80。介电元件12的材料可以选自氮化硅(Si3N4)、三氧化二铝（Al2O3）、铪硅氧化物（HfSiO4）、三氧化二钇（Y2O3）、氧化钽（Ta2O3）、氧化锆（ZrO2）、二氧化铪（HfO2）、镧铝氧化物（LnAlO3）、二氧化钛（TiO2）及其混合物等，例如是氧化钽（Ta2O3）、氧化钽-铪硅氧化物（Ta2O3- HfSiO2）、氧化钽-二氧化硅（Ta2O3-SiO2）、二氧化硅-氧化钽-铪硅氧化物（SiO2- Ta2O3- HfSiO2）等。介电元件12的介电常数越高，其阻抗值越高，抗静电能力越好。
在实际应用中，触控面板600与显示面板的结合有两种情况。其一为，触控面板600与显示面板组合工作，设置于显示面板上；其二为，触控面板500与显示面板分离工作。当触控面板600与显示面板组合工作时，即设置于显示面板上用于对显示面板进行触控操作。基板20选用透明基板，且第一电极层11的材料选用透明的导电材料。介电元件12的厚度越薄，介电元件12的透光率越高，进而触控面板600的透光率也随之越高。当上述触控面板600与显示面板分开工作时，基板20可以是非透明基板，且第一电极层11的材料选用透明的导电材料可以选用非透明的导电材料。
另外，本发明所提供的触控面板，如上述的触控面板100、200、300、400、500及600，由于介电元件12的厚度范围小于等于1微米，介电元件12的厚度越薄，第一导电元件11与第二导电元件13的间的距离越小，触控面板的触控感应灵敏度越好。且本发明提供的触控面板具有较高的抗静电等级。特别地，设计本发明提供的触控面板的介电元件12的厚度为1微米，对不同介电常数的触控面板进行空气式放电测试其抗静电等级，结果显示抵抗静电电压大于100V。从结果可以看出，当膜厚一定时，触控面板抗静电等级与介电常数k的比值成正比。请参考表一所示。
表一
介电常数k 7 9 11 15 22 25 25 30 80
介电绝缘材料 Si3N4 Al2O3 HfSiO4 Y2O3 Ta2O3 ZrO2 HfO2 LnAlO3 TiO2
膜厚（微米） 1 1 1 1 1 1 1 1 1
抵抗最大静电电压（V） 107 138 169 230 338 384 384 461 1230
表二
介电常数 7 9 11 15 22 25 25 30 80
材料 Si3N4 Al2O3 HfSiO4 Y2O3 Ta2O3 ZrO2 HfO2 LnAlO3 TiO2
膜厚（微米） 1.1 0.87 0.7 0.5 0.35 0.3 0.3 0.26 0.09
抵抗最大静电电压（V） 120 120 120 120 120 120 120 120 120
在此特别说明，表一与表二中介电常数值所对应的介电元件材料只是举例说明，本发明並不以此为限。
综上所述，本发明提供的触控面板不仅具有薄型化的优点，由于第一电极层与第二电极层的距离变小还具有触控灵敏度高的优势。另外，本发明提供的触控面板由于通过选用较高的介电常数的材料作为介电元件，因此还具有较高的抗静电等级。由于介电元件的厚度减薄，还可减少介电绝缘材料的使用，进一步的降低成本。另外，触控面板若设置于显示面板上，用于对显示面板进行触控操作时，本发明提供的触控面板的透光率较好且色差较小。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明保护的范围之内。

Claims (25)

  1. 一种触控单元，其特征在于，所述触控单元包括：
    一第一导电元件；
    一第二导电元件；以及
    一介电元件，设置在所述第一导电元件与所述第二导电元件之间，且以使所述第一导电元件与所述第二导电元件电性绝缘，其中所述介电元件的厚度小于等于1微米。
  2. 根据权利要求1所述的触控单元，其特征在于，所述介电元件的介电常数为5~80。
  3. 根据权利要求1所述的触控单元，其特征在于，所述介电元件的厚度范围为大于等于0.05微米且小于等于1微米。
  4. 根据权力要求1所述的触控单元，其特征在于，所述介电元件的厚度范围为大于等于0.05微米且小于等于0.5微米。
  5. 根据权利要求1所述的触控单元，其特征在于，所述的介电元件的材料选自氮化硅、三氧化二铝、铪硅氧化物、三氧化二钇、氧化钽、氧化锆、二氧化铪、镧铝氧化物、二氧化钛及其相互间混合物中的一种。
  6. 根据权利要求1所述的的触控单元，其特征在于，所述的介电元件的材料选自二氧化硅、氮化硅、三氧化二铝、铪硅氧化物、三氧化二钇、氧化钽、氧化锆、二氧化铪、镧铝氧化物、二氧化钛相互间混合物中的一种。
  7. 根据权利要求5所述的触控单元，其特征在于，所述的介电元件的介电常数为5~80。
  8. 根据权利要求6所述的触控单元，其特征在于，所述的介电元件的介电常数为5~80。
  9. 一种触控面板，其特征在于，包括：
    一基板；
    一触控单元，设置于所述基板上，所述触控单元包括：
    一第一导电元件；
    一第二导电元件；以及
    一介电元件，设置于所述第一导电元件与所述第二导电元件之间，以使所述第一导电元件与所述第二导电元件电性绝缘，其中所述第一导电元件设置于所述基板上，所述介电元件的厚度小于等于1微米。
  10. 根据权利要求9所述的触控面板，其特征在于，其中所述第一导电元件是由复数条沿第一方向延伸的第一轴向电极组成，所述第一轴向电极彼此电性绝缘，所述第二导电元件是由复数条沿第二方向延伸的第二轴向电极组成，所述第二轴向电极彼此电性绝缘，且所述第一方向与所述第二方向相交。
  11. 根据权利要求10所述的触控面板，其特征在于，所述介电元件覆盖所述第一导电元件。
  12. 根据权利要求10所述的触控面板，其特征在于，所述介电元件由复数介电块组成，所述介电块对应设置在所述第一轴向电极与所述第二轴向电极重叠位置。
  13. 根据权利要求9所述的触控面板，其特征在于，所述第一导电元件包含复数第一轴向电极及复数导电单元，所述第二导电元件包含复数电接线，其中所述第一轴向电极彼此电性绝缘，所述导电单元彼此相互电性绝缘，所述电接线沿一第二方向电性连接两相邻的所述导电单元，以形成复数第二轴向电极。
  14. 根据权利要求13所述的触控面板，其特征在于，所述介电元件由复数介电块组成，所述介电块对应设置在所述电接线与所述第一轴向电极之间，以电性绝缘所述第一轴向电极与所述第二轴向电极。
  15. 根据权利要求9所述的触控面板，其特征在于，所述第一导电元件包含复数电接线，所述第二导电元件包含复数第二轴向电极及复数导电单元，其中所述第二轴向电极彼此电性绝缘，所述导电单元彼此相互电性绝缘，所述电接线沿一第一方向电性连接两相邻的所述导电单元，以形成复数第一轴向电极。
  16. 根据权利要求15所述的触控面板，其特征在于，所述介电元件由复数介电块组成，所述介电块对应设置在所述电接线与所述第二轴向电极之间，以电性绝缘所述第一轴向电极与所述第二轴向电极。
  17. 根据权利要求13或15所述的触控面板，其特征在于，所述介电元件覆盖所述第一导电元件，且于所述电接线与所述导电单元连接处设置相应穿孔。
  18. 根据权利要求9所述的触控面板，其特征在于，所述基板材料选自玻璃或者高分子材料。
  19. 据权利要求9所述的触控面板，其特征在于，所述介电元件的介电常数为5~80。
  20. 根据权利要求9所述的触控面板，其特征在于，所述介电元件的厚度范围为大于等于0.05微米且小于等于1微米。
  21. 根据权利要求9所述的触控面板，其特征在于，所述介电元件的厚度范围为大于等于0.05微米且小于等于0.5微米。
  22. 根据权利要求9所述的触控面板，其特征在于，所述介电元件的材料选自氮化硅、三氧化二铝、铪硅氧化物、三氧化二钇、氧化钽、氧化锆、二氧化铪、镧铝氧化物、二氧化钛及其混合物中的一种。
  23. 根据权利要求9所述的的触控面板，其特征在于，所述的介电元件的材料选自二氧化硅、氮化硅、三氧化二铝、铪硅氧化物、三氧化二钇、氧化钽、氧化锆、二氧化铪、镧铝氧化物、二氧化钛混合物。
  24. 根据权利要求22所述的触控面板，其特征在于，所述介电元件的介电常数为5~80。
  25. 根据权利要求23所述的触控面板，其特征在于，所述的介电元件的介电常数为5~80。
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