CN205451006U - Touch panel - Google Patents
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- CN205451006U CN205451006U CN201521104378.2U CN201521104378U CN205451006U CN 205451006 U CN205451006 U CN 205451006U CN 201521104378 U CN201521104378 U CN 201521104378U CN 205451006 U CN205451006 U CN 205451006U
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Abstract
The utility model provides a touch panel has the touch -control face, contain the primary shaft to touch -control electrode and secondary shaft to the touch -control electrode, interlock insulatingly and set up on the base plate, wherein the primary shaft interconnects via connecting portion including a plurality of first electrically conductive units to touch -control electrode package, the secondary shaft contains the electrically conductive unit of a plurality of detached seconds of each other to touch -control electrode package, the electrically conductive unit of second that bridging structure electric connection is adjacent, the structure of wherein building bridge contains a metal level and a transparent conducting film, and a transparent conducting film compares and more is close to the touch -control face in the metal level.
Description
Technical field
This utility model relates to contact panel technology, particularly with regard to the bridging structure material of contact panel.
Background technology
In recent years, contact panel has been widely used in various electronic product, such as mobile phone, pocket computer and palm PC etc., and contact panel is generally and display floater is combined into the input/output interface of electronic product.
In known techniques, contact panel generally comprises the conductive unit of multiple interconnection and is arranged in touch-control array with multiple conductive units separated from each other, also comprises bridge formation line and is electrically connected by the conductive unit that these are separated from each other, to provide touch-control sensing function.
Traditional bridge formation line is generally made up of molybdenum/aluminum/molybdenum, and in order to ensure the electricity connection function of bridge formation line, its thickness need to reach at leastOr thicker, when the thickness of bridge formation line is thicker, will produce in the processing procedure of contact panel and bridge formation line is etched incomplete phenomenon, and make contact panel there is the problems such as integral thickness increase, surface smoothness reduction, and then affect the yield of contact panel.Additionally, the bridge formation line brightness that molybdenum/aluminum/molybdenum is made is higher, the bridge formation line of contact panel is caused easily to be seen by the user, the problem i.e. having visuality, and then affect the outward appearance of contact panel.
Material (such as: the indium tin oxide) resistivity of another kind of traditional bridging structure is bigger, and the width of bridging structure is the most little, it is thus desirable to the bigger bridging structure of thickness is to ensure the sensitivity of touch control electrode, but, when bridging structure thickness increases, the problems such as etching is incomplete, contact panel integral thickness increases, contact panel flatness is low can be there is, and then reduce the fine ratio of product of contact panel, and after the thickness of bridging structure increases, also can produce the visual problem of contact panel.
Utility model content
This utility model provides the material of the bridging structure of contact panel to select, utilize the material of the bridging structure of this utility model, the bridging structure of contact panel can be made to have relatively thin thickness reaching low-impedance simultaneously, and in the processing procedure of contact panel, it is less susceptible to relatively thin bridging structure produce and etches incomplete problem, and the luminance-reduction of bridging structure can be allowed, it is to avoid the problem that bridging structure is visual, reach the contact panel that yield is high and outward appearance is good.
Embodiment more of the present utility model provides contact panel, there is touch surface, including: the first axial touch control electrode is crisscross arranged on substrate with the second axial touch control electrode is insulated, wherein the first axial touch control electrode comprises a plurality of first conductive unit via connecting portion interconnection, second axial touch control electrode comprises a plurality of second conductive unit separated from each other, and bridging structure is electrically connected with these the second conductive units, wherein bridging structure includes: metal level and the first transparency conducting layer, and the first transparency conducting layer compared to metal level closer to touch surface.
Accompanying drawing explanation
Figure 1A shows the floor map of the contact panel according to embodiments more of the present utility model.
Figure 1B shows the partial cutaway schematic of some embodiments of the hatching A-A ' of Figure 1A.
Fig. 1 C shows the partial cutaway schematic of some other embodiments of the hatching A-A ' of Figure 1A.
Fig. 1 D shows the partial cutaway schematic of some other embodiments of the hatching A-A ' of Figure 1A.
Fig. 2 A-2C shows the partial cutaway schematic of the contact panel of some other embodiments of this utility model.
Detailed description of the invention
With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings.
Refer to Figure 1A, it demonstrates the floor map of the contact panel 100 according to embodiments more of the present utility model.Contact panel 100 comprises substrate 101.In certain embodiments, the material of substrate 101 can comprise glass, polyethylene terephthalate (polyethyleneterephthalate, PET) or pi (polyimide, PI).
nullIn certain embodiments，Contact panel 100 is crisscross arranged on substrate 101 with comprising the plural number axial touch control electrode of bar first 102 and plural number axial touch control electrode 103 mutual insulating of bar second，Wherein the first axial touch control electrode 102 comprises a plurality of the first conductive unit 102a (such as: X-direction) extended along a first direction，First conductive unit 102a interconnects via the connecting portion 102b of the first axial touch control electrode 102，Second axial touch control electrode 103 comprises a plurality of the second conductive unit 103a extended along second direction (such as: Y direction)，Second direction is perpendicular to first direction，Second conductive unit 103a is separated from each other，Two adjacent the second conductive unit 103a are separately positioned on the both sides of connecting portion 102b，And interconnect by bridging structure 104.
In certain embodiments, the first axial touch control electrode 102 can be to receive electrode, and the second axial touch control electrode 103 is then drive electrode.In further embodiments, the first axial touch control electrode 102 can be drive electrode, and the second axial touch control electrode 103 is then for receiving electrode.The material of the first axial touch control electrode 102 and the second axial touch control electrode 103 can comprise transparent conductive material, such as indium tin oxide (indiumtinoxide, ITO), indium-zinc oxide (indiumzincoxide, IZO), fluorine doped tin oxide (fluorinedopedtinoxide, FTO), Al-Doped ZnO (aluminumdopedzincoxide, AZO), gallium-doped zinc oxide (galliumdopedzincoxide, GZO), or other light transmitting electro-conductive materials, such as metal grill (metalmesh), nano-silver thread (silvernano-wire, SNW) etc..
Bridging structure 104 is arranged between the second conductive unit 103a separated from each other, to be electrically connected with the second conductive unit 103a, and between connecting portion 102b and the bridging structure 104 of the first axial touch control electrode 102, collets 105 are set, connecting portion 102b is made to form electrically isolation with bridging structure 104 through collets 105, to provide the electrical isolation between the first axial touch control electrode 102 and the second axial touch control electrode 103.In certain embodiments, the material of collets 105 can comprise inorganic material (such as, silicon oxide, silicon nitride, silicon oxynitride or aforementioned combination), organic material is (such as, epoxy resin, polyimide resin (polyimide), benzocyclobutene (butylcyclobutene, BCB), Parylene (parylene), naphthalene polymer (polynaphthalenes), fluorine carbide (fluorocarbons), acrylate (acrylates)) or other insulant being suitable for.
nullRefer to Figure 1B，It shows the hatching A-A ' along Figure 1A，The partial cutaway schematic of some embodiments of contact panel 100，Contact panel 100 comprises substrate 101，Substrate 101 has touch surface 101a and another medial surface 101b relative with touch surface 101a，First axial touch control electrode 102 and connecting portion 102b and the second conductive unit 103a thereof are formed on the medial surface 101b of substrate 101，Collets 105 are formed on connecting portion 102b and are coated with connecting portion 102b，Bridging structure 104 is positioned at above collets 105，According to embodiments more of the present utility model，Bridging structure 104 comprises metal level 104a and the first transparency conducting layer 104b，Wherein the first transparency conducting layer 104b compared to metal level 104a closer to touch surface 101a，The reflection of metal level 104a can be reduced，Therefore when user is by touch surface 101a viewing contact panel 100，Make the luminance-reduction of bridging structure 104，The problem avoiding bridging structure 104 visuality.
Refer to table 1, the L brightness space tables of data that its display bridging structure 104 produces for different planes of light incidence (i.e. incident incident with from metal level 104a side from the first transparency conducting layer 104b side), when light is from metal level 104a side incidence, the L* value of bridging structure 104 is 68.4077, when light is from the first transparency conducting layer 104b side plane of incidence, the L* value of bridging structure 104 is 50.0068.As can be seen here, when light is introduced into the first transparency conducting layer 104b again by metal level 104a, the light luminance reflected is dark (L* value is less), therefore, when the first transparency conducting layer 104b compared to metal level 104a closer to touch surface 101a time, first transparency conducting layer 104b has the effect of the reflection reducing metal level 104a, it was demonstrated that the brightness of bridging structure 104 can reduce, and then the problem avoiding bridging structure 104 visuality.
Table 1:
| The plane of incidence | Metal level 104a | First transparency conducting layer 104b |
| L* | 68.4077 | 50.0068 |
In certain embodiments, metal level 104a by resistivity when 20 DEG C between 1.6 × 10-7Ω m to 5.3 × 10-8Material between Ω m is formed, and the material of metal level 104a can comprise copper, silver, gold, aluminum, tungsten and alloy thereof, and the thickness range of metal level 104a can produce low-impedance bridging structure 104 between about 10 nanometers and about 50 nanometers.
Material (such as: indium tin oxide or molybdenum/aluminum/molybdenum) compared to traditional bridging structure, according to embodiment of the present utility model, lower compared to the material of tradition bridging structure owing to forming the resistivity of the metal level 104a of bridging structure 104, therefore in the case of the metal level 104a at bridging structure 104 has identical impedance (such as: about 0.3 Ω) with tradition bridging structure, and metal level 104a with tradition bridging structure there is identical length time, metal level 104a compared to tradition bridging structure there is thinner thickness (such as: about) so that the overall thickness of bridging structure 104 reduces, and therefore the etch process of bridging structure 104 is less likely to occur the incomplete problem of etching, and then promotes the fine ratio of product of contact panel 100.Simultaneously, preferably light transmittance can be had after the thickness of bridging structure 104 reduces, thereby can avoid the visual problem of bridging structure 104, and when contact panel 100 and display panel combination, the penetrance of the light penetration bridging structure that display floater sends is higher, can produce preferably display effect.
Furthermore, when the metal level 104a of bridging structure 104 is in the case of reaching more Low ESR about 0.15 Ω, when being 0.3 Ω compared to the impedance of bridging structure, the thickness of metal level 104a generally need to double above, and according to embodiments more of the present utility model, in the case of bridging structure has same impedance, the thickness of metal level 104a is (such as: about) compared to traditional bridging structure material (such as: molybdenum/aluminum/molybdenum) thickness (such as: about) reducing many, the advantage of the bridging structure 104 that embodiment the most of the present utility model provides is the most more obvious.
As shown in Figure 1A, contact panel 100 further includes perimeter circuit 107, and perimeter circuit 107 is electrically connected with the first axial touch control electrode 102 and the second axial touch control electrode 103 to connection pad 108.Its material can comprise metal grill, nano-silver thread or transparent conductive material, such as indium tin oxide, indium-zinc oxide, fluorine doped tin oxide, Al-Doped ZnO, gallium-doped zinc oxide etc..In certain embodiments, perimeter circuit 107 and connection pad 108 can be formed together with metal level 104a, i.e. perimeter circuit 107 can be same as metal level 104a with the material of connection pad 108 with thickness, and is once formed in same step processing procedure.Reduce the making step of contact panel 100, save material, improve yield.In further embodiments, perimeter circuit 107 and connection pad 108 also can be formed together with bridging structure 104.
According to embodiment of the present utility model, the axial touch control electrode of first transparency conducting layer 104b and first 102 of bridging structure 104 and the second axial touch control electrode 103 have same or like refractive index so that the visual color of the bridging structure 104 visual color on contact panel 100 and the first axial touch control electrode 102 and the second axial touch control electrode 103 is close.In certain embodiments, the ranges of indices of refraction of the material forming the first transparency conducting layer 104b can be about 1.6 to about 2.2, the material of the first transparency conducting layer 104b can comprise indium-zinc oxide, fluorine doped tin oxide, Al-Doped ZnO or gallium-doped zinc oxide, and the thickness range of the first transparency conducting layer 104b can be between about 20 nanometers and about 50 nanometers.
In addition; contact panel 100 also comprises protective layer 106; protective layer 106 is arranged on substrate 101, comprehensively covers the first axial touch control electrode 102 (comprising the first conductive unit 102a, connecting portion 102b), the second axial touch control electrode 103 (comprising the second conductive unit 103a), bridging structure 104 (comprising metal level 104a, the first transparency conducting layer 104b) and collets 105.In certain embodiments; the material of protective layer 106 can comprise inorganic material (such as; silicon oxide, silicon nitride, silicon oxynitride or aforementioned combination), organic material (such as, epoxy resin, polyimide resin, benzocyclobutene, Parylene, naphthalene polymer, fluorine carbide, acrylate) or other be suitable for material.
In certain embodiments, the substrate 101 of contact panel 100 is cover sheet, and contact panel 100 also comprises display module 110, and display module 110 is engaged in below protective layer 106.Display module 110 can comprise LCD assembly (LiquidCrystalDisplay, LCD) or active-matrix Organic Light Emitting Diode (Active-matrixorganiclight-emittingdiode, AMOLED) display module.
Refer to Fig. 1 C, its display is along the hatching A-A ' of Figure 1A, the partial cutaway schematic of some other embodiments of contact panel 100, and the parts being wherein same as in Figure 1B make to be indicated by the same numeral and the description thereof will be omitted.
The structure of the contact panel 100 being similar to that in Figure 1B of the contact panel 100 in Fig. 1 C, it is at difference that the bridging structure 104 of contact panel 100 also comprises the second transparency conducting layer 104c so that metal level 104a is arranged between the first transparency conducting layer 104b and the second transparency conducting layer 104c.In certain embodiments, material and the thickness of the second transparency conducting layer 104c can be same as the first transparency conducting layer 104b.In some other embodiments, the material of the second transparency conducting layer 104c and thickness may differ from the first transparency conducting layer 104b.According to embodiments more of the present utility model; the second transparency conducting layer 104c that bridging structure 104 comprises can in the manufacture process of contact panel 100 guard metal layer 104a not oxidized, or the adhesive force between bridging structure 104 and the second conductive unit 103a can be increased.
Refer to Fig. 1 D, its display is along the hatching A-A ' of Figure 1A, and the partial cutaway schematic of some other embodiments of contact panel 100, the parts being wherein same as in Figure 1B are to make to be indicated by the same numeral and the description thereof will be omitted.
The structure of the contact panel 100 being similar to that in Figure 1B of the contact panel 100 in Fig. 1 D; it is at difference that the substrate 101 of contact panel 100 is as carrying the first axial touch control electrode 102 and substrate of the second axial touch control electrode 103; and contact panel 100 also comprises cover sheet 120 and is arranged on protective layer 106; in this embodiment; touch surface 120a of contact panel 100 is positioned on cover sheet 120, and display module 110 is engaged in the substrate 101 side away from touch surface 120a.
nullManufacture method about contact panel 100，As shown in Figure 1B，In certain embodiments，Substrate 101 is provided，Substrate 101 has touch surface 101a and another inner surface 101b corresponding thereto，Can pass through deposition manufacture process (such as，Physical vapor depositing processing procedure、Chemical gaseous phase depositing processing procedure or other processing procedures being suitable for)、Micro-photographing process and etch process are (such as，Dry ecthing procedure、Wet etching processing procedure、Plasma etching process、Reactive ion etching processing procedure or other processing procedures being suitable for)，Or with coating and patterning process，Form the first axial touch control electrode 102 and (comprise the first conductive unit 102a、Connecting portion 102b) with the second axial touch control electrode 103 (comprising the second conductive unit 103a) on substrate 101，Then can pass through deposition manufacture process (such as，Physical vapor depositing processing procedure、Chemical gaseous phase depositing processing procedure or other processing procedures being suitable for)、Micro-photographing process and etch process are (such as，Dry ecthing procedure、Wet etching processing procedure、Plasma etching process、Reactive ion etching processing procedure or other processing procedures being suitable for)，Or with coating and patterning process，Form collets 105 on connecting portion 102b，And collets 105 are coated with connecting portion 102b.
Then, can pass through deposition manufacture process (such as, physical vapor depositing processing procedure, chemical gaseous phase depositing processing procedure or other processing procedures being suitable for), micro-photographing process and etch process are (such as, dry ecthing procedure, wet etching processing procedure, plasma etching process, reactive ion etching processing procedure or other processing procedures being suitable for), or with coating and patterning process, form bridging structure 104 and (comprise metal level 104a, first transparency conducting layer 104b) on collets 105, bridging structure 104 is electrically connected with the second conductive unit 103a, wherein the first transparency conducting layer 104b compared to metal level 104a closer to touch surface 101a.Owing to the metal level 104a of bridging structure 104 has relatively thin thickness (about in the case of reaching Low ESR about 0.15 Ω), in etch process, therefore it is less likely to occur the incomplete problem of etching, reaches the contact panel that yield is high.
Then; can pass through deposition manufacture process (such as; physical vapor depositing processing procedure, chemical gaseous phase depositing processing procedure or other be suitable for processing procedure) or coating process formed protective layer 106 on substrate 101, comprehensively cover the first axial touch control electrode 102 (comprising the first conductive unit 102a, connecting portion 102b), the second axial touch control electrode 103 (comprising the second conductive unit 103a), bridging structure 104 (comprising metal level 104a, the first transparency conducting layer 104b) and collets 105.
Then; can pass through Optical transparent adhesive (OpticalClearAdhesive; OCA) or display module 110 is fitted in the protective layer 106 side away from touch surface 101a by optical clear resin (OpticalClearResin, OCR), contact panel 100 is completed.
About the manufacture method of contact panel 100 as shown in Figure 1 C, wherein it is same as the manufacture method of contact panel 100 of Figure 1B by the description thereof will be omitted.
The manufacture method of the contact panel 100 of Fig. 1 C is similar to the manufacture method of the contact panel 100 of Figure 1B; when being the bridging structure 104 forming contact panel 100 at difference; also comprise formation the second transparency conducting layer 104c and cover metal level 104a; make metal level 104a between the first transparency conducting layer 104b and the second transparency conducting layer 104c, the formation of the second transparency conducting layer 104c can with guard metal layer 104a avoid its in the middle of processing procedure oxidized.
About the manufacture method of contact panel 100 as shown in figure ip, wherein it is same as the manufacture method of contact panel 100 of Figure 1B by the description thereof will be omitted.
The manufacture method of the contact panel 100 of Fig. 1 D is similar to the manufacture method of the contact panel 100 of Figure 1B, after being at difference to form protective layer 106, through Optical transparent adhesive or optical clear resin (Fig. 1 D does not draws), cover sheet 120 is fitted on protective layer 106, touch surface 120a making contact panel 100 is positioned on cover sheet 120, and through another Optical transparent adhesive or optical clear resin (not drawing), display module 110 is fitted in the substrate 101 side away from touch surface 120a, in this embodiment, the substrate 101 of contact panel 100 is as the first axial touch control electrode 102 and bearing substrate of the second axial touch control electrode 103.
Refer to Fig. 2 A, its display is according to the partial cutaway schematic of contact panel 200 of some other embodiments of this utility model, and the parts being wherein same as in Figure 1B are to make to be indicated by the same numeral and the description thereof will be omitted.
The structure of the contact panel 100 being similar to that in Figure 1B of the contact panel 200 in Fig. 2 A, substrate 101 has touch surface 101a and the medial surface 101b relative with touch surface 101a, it is at difference that the bridging structure 104 (including metal level 104a and the first transparency conducting layer 104b) of contact panel 200 is initially formed on the medial surface 101b of substrate 101, collets 105 are positioned on bridging structure 104, and first the connecting portion 102b of axial touch control electrode 102 be positioned on collets 105, that is, the bridging structure 104 of contact panel 200 is initially formed on substrate 101, form the first axial touch control electrode 102 and the second axial touch control electrode 103 again.Additionally, the first transparency conducting layer 104b in the bridging structure 104 of contact panel 200 compared to metal level 104a closer to touch surface 101a.
Refer to Fig. 2 B, its display is according to the generalized section of contact panel 200 of some other embodiments of this utility model, and the parts being wherein same as in Fig. 2 A are to make to be indicated by the same numeral and the description thereof will be omitted.
The structure of the contact panel 200 being similar to that in Fig. 2 A of the contact panel 200 in Fig. 2 B, it is at difference that the contact panel 200 of Fig. 2 B also comprises the second transparency conducting layer 104c and covers metal level 104a so that metal level 104a is between the first transparency conducting layer 104b and the second transparency conducting layer 104c.In certain embodiments, material and the thickness of the second transparency conducting layer 104c can be same as the first transparency conducting layer 104b.In some other embodiments, the material of the second transparency conducting layer 104c and thickness may differ from the first transparency conducting layer 104b, the second transparency conducting layer 104c can in the processing procedure of contact panel 200 guard metal layer 104a, it is to avoid metal level 104a aoxidizes.
Refer to Fig. 2 C, its display is according to the partial cutaway schematic of some other embodiments of this utility model, and the parts being wherein same as in Fig. 2 A are to make to be indicated by the same numeral and the description thereof will be omitted.
The structure of the contact panel 200 being similar to that in Fig. 2 A of the contact panel 200 in Fig. 2 C; the substrate 101 being the contact panel 200 of Fig. 2 C at difference is as the first axial touch control electrode 102 and bearing substrate of the second axial touch control electrode 103; and contact panel 200 also comprises cover sheet 120 and is arranged on protective layer 106; touch surface 120a of contact panel 200 is positioned on cover sheet 120, and display module 110 is engaged in the substrate 101 side away from touch surface 120a.
About the manufacture method of contact panel 200 as shown in Figure 2 A, the manufacture method being wherein same as in Figure 1B will the description thereof will be omitted.
nullThe manufacture method of the contact panel 100 that the manufacture method of the contact panel 200 in Fig. 2 A is similar in Figure 1B，It is at difference that contact panel 200 is through deposition manufacture process (such as，Physical vapor depositing processing procedure、Chemical gaseous phase depositing processing procedure or other processing procedures being suitable for)、Micro-photographing process and etch process are (such as，Dry ecthing procedure、Wet etching processing procedure、Plasma etching process、Reactive ion etching processing procedure or other processing procedures being suitable for) or with coating and patterning process，Form bridging structure 104 and (comprise metal level 104a、First transparency conducting layer 104b) on another inner surface 101b contrary with touch surface 101a of substrate 101，Bridging structure 104 is electrically connected with the second conductive unit 103a，And the first transparency conducting layer 104b of bridging structure 104 compared to metal level 104a closer to touch surface 101a，Then can pass through deposition manufacture process (such as，Physical vapor depositing processing procedure、Chemical gaseous phase depositing processing procedure or other processing procedures being suitable for)、Micro-photographing process and etch process are (such as，Dry ecthing procedure、Wet etching processing procedure、Plasma etching process、Reactive ion etching processing procedure or other processing procedures being suitable for) or with coating and patterning process，Form collets 105 on bridging structure 104.According to embodiment of the present utility model, the metal level 104a of bridging structure 104 has relatively thin thickness when reaching Low ESR about 0.15 Ω, is therefore less susceptible to cause the incomplete problem of etching in etch process, reaches the contact panel that yield is high.
Then, can pass through deposition manufacture process (such as, physical vapor depositing processing procedure, chemical gaseous phase depositing processing procedure or other processing procedures being suitable for), micro-photographing process and etch process are (such as, dry ecthing procedure, wet etching processing procedure, plasma etching process, reactive ion etching processing procedure or other processing procedures being suitable for) or with coating and patterning process, form the first axial touch control electrode 102 (comprising the first conductive unit 102a and connecting portion 102b) and the second axial touch control electrode 103 (comprising the second conductive unit 103a) on substrate 101, wherein the connecting portion 102b of the first axial touch control electrode 102 is formed on collets 105, and bridging structure 104 is electrically connected with the second conductive unit 103a.
About the manufacture method of contact panel 200 as shown in Figure 2 B, the manufacture method of the contact panel 200 being wherein same as in Fig. 2 A will the description thereof will be omitted.
The manufacture method of the contact panel 200 that the manufacture method of the contact panel 200 in Fig. 2 B is similar in Fig. 2 A, when being the bridging structure 104 forming contact panel 200 at difference, also comprise formation the second transparency conducting layer 104c covered with metal layer 104a so that metal level 104a is between the first transparency conducting layer 104b and the second transparency conducting layer 104c.
About the manufacture method of contact panel 200 as shown in Figure 2 C, the manufacture method of the contact panel 200 being wherein same as in Fig. 2 A will the description thereof will be omitted.
The manufacture method of the contact panel 200 that the manufacture method of the contact panel 200 in Fig. 2 C is similar in Fig. 2 A, after being at difference to form protective layer 106, through Optical transparent adhesive or optical clear resin (not drawing), cover sheet 120 is fitted on protective layer 106, in this embodiment, touch surface 120a of contact panel 200 is positioned on cover sheet 120, and through another Optical transparent adhesive or optical clear resin, display module 110 is fitted in the substrate 101 side away from touch surface 120a, in this embodiment, the substrate 101 of contact panel 200 is as the first axial touch control electrode 102 and bearing substrate of the second axial touch control electrode 103.
According to embodiments more of the present utility model, owing to bridging structure comprises by resistivity less than the metal level made by the material of tradition bridging structure and the first transparency conducting layer, therefore the low-impedance thickness simultaneously reducing integrated stand bridge construction can reached, make bridging structure have relatively thin thickness, avoid again the visual problem of bridging structure.
In addition, bridging structure also comprises the first transparency conducting layer, compared to metal level, first transparency conducting layer is provided closer to the position of touch surface (being also the viewing face of user), thereby can reduce the reflection of metal level, make the luminance-reduction of integrated stand bridge construction so that it is the bridge formation line made compared to tradition molybdenum/aluminum/molybdenum can avoid bridging structure, in contact panel, visual problem occurs, and reaches the contact panel that outward appearance is good.
According to embodiment of the present utility model, the bridging structure of contact panel is reaching low-impedance while, integral thickness also reduces, and the bridging structure that thereby can improve contact panel etches incomplete phenomenon in processing procedure to bridging structure, and then promotes the fine ratio of product of contact panel.Additionally, when the metal level of bridging structure is in the case of reaching Low ESR about 0.15 Ω, and the thickness of metal level reduces more compared to the thickness of the material of traditional bridging structure, and the advantage of the bridging structure that embodiment the most of the present utility model provides is the most more obvious.
Embodiment of the present utility model can apply to use any kind of touch control display device of the separate conductive unit of bridging structure connection touch control electrode, such as contact panel is formed at display module outer (as shown in Figure 1B-1D and 2A-2C) or contact panel is formed on the colored filter (colorfilter, CF) of display module.Additionally, the design of the first axial touch control electrode and the second axial touch control electrode be not limited to above-mentioned graphic in kenel.
Although this utility model is disclosed above with concrete preferred embodiment, so it is not limited to this utility model, any art has usually intellectual, without departing from the spirit and scope of this utility model, when changing and combine above-mentioned various embodiments.
Claims (16)
1. a contact panel, has a touch surface, it is characterised in that including:
One first axial touch control electrode and one second axial touch control electrode, it is crisscross arranged on a substrate mutual insulating, wherein said first axial touch control electrode comprises a plurality of first conductive unit and interconnects via a junction, described second axial touch control electrode comprises a plurality of second conductive unit separated from each other, and adjacent described second conductive unit is respectively arranged at the both sides of described connecting portion；And
One bridging structure, is electrically connected with described second conductive unit, and wherein said bridging structure includes:
One metal level；And
One first transparency conducting layer, wherein said first transparency conducting layer compared to described metal level closer to described touch surface.
2. contact panel as claimed in claim 1, it is characterised in that the resistivity of described metal level when 20 DEG C between 1.6 × 10-7Ω m to 5.3 × 10-8Between Ω m, the material of wherein said metal level is copper, silver, gold, aluminum or tungsten.
3. contact panel as claimed in claim 1, it is characterised in that the thickness range of described metal level is between 10 nanometers and 50 nanometers.
4. contact panel as claimed in claim 1, it is characterised in that the ranges of indices of refraction of described first transparency conducting layer is between 1.6 to 2.2.
5. contact panel as claimed in claim 4, it is characterised in that the material of described first transparency conducting layer includes indium-zinc oxide, fluorine doped tin oxide, Al-Doped ZnO or gallium-doped zinc oxide.
6. contact panel as claimed in claim 1, it is characterised in that the thickness range of described first transparency conducting layer is between 20 nanometers and 50 nanometers.
7. contact panel as claimed in claim 1, it is characterised in that described bridging structure further includes one second transparency conducting layer, and described metal level is arranged between described first transparency conducting layer and described second transparency conducting layer.
8. contact panel as claimed in claim 7, it is characterised in that the material of described second transparency conducting layer and thickness are same as described first transparency conducting layer.
9. contact panel as claimed in claim 7, it is characterised in that the material of described second transparency conducting layer and thickness are different from described first transparency conducting layer.
10. contact panel as claimed in claim 1, it is characterised in that further including a perimeter circuit, be electrically connected to the described first axial touch control electrode and the described second axial touch control electrode, wherein said perimeter circuit is formed by described metal level.
11. contact panels as claimed in claim 1, it is characterised in that further include collets, be arranged between described connecting portion and described bridging structure.
12. contact panels as claimed in claim 11, it is characterised in that described bridging structure is formed on described substrate, and described collets are positioned at above described bridging structure.
13. contact panels as claimed in claim 11, it is characterised in that described collets are formed on described connecting portion, and described bridging structure is positioned at above described collets.
14. contact panels as claimed in claim 11, it is characterised in that further include a protective layer and be arranged on described substrate, comprehensively cover the described first axial touch control electrode, the described second axial touch control electrode, described bridging structure and described collets.
15. contact panels as claimed in claim 14, it is characterised in that described substrate is a cover sheet, and further include a display module and be engaged in the described protective layer side away from described touch surface.
16. contact panels as claimed in claim 14, it is characterised in that described substrate is a glass substrate or polyethylene terephthalate thin film, and further include a cover sheet and be arranged on described protective layer；And one display module be engaged in the described substrate side away from described touch surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521104378.2U CN205451006U (en) | 2015-12-28 | 2015-12-28 | Touch panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521104378.2U CN205451006U (en) | 2015-12-28 | 2015-12-28 | Touch panel |
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| CN205451006U true CN205451006U (en) | 2016-08-10 |
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| CN201521104378.2U Active CN205451006U (en) | 2015-12-28 | 2015-12-28 | Touch panel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106919278A (en) * | 2015-12-28 | 2017-07-04 | 宸鸿科技(厦门)有限公司 | Contact panel |
| CN107065267A (en) * | 2017-05-22 | 2017-08-18 | 东旭（昆山）显示材料有限公司 | Touch screen color membrane substrates |
-
2015
- 2015-12-28 CN CN201521104378.2U patent/CN205451006U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106919278A (en) * | 2015-12-28 | 2017-07-04 | 宸鸿科技(厦门)有限公司 | Contact panel |
| CN107065267A (en) * | 2017-05-22 | 2017-08-18 | 东旭（昆山）显示材料有限公司 | Touch screen color membrane substrates |
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