CN105718091A - Touch control panel with flexible touch control sensor and fabrication method of touch control panel - Google Patents
Touch control panel with flexible touch control sensor and fabrication method of touch control panel Download PDFInfo
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- CN105718091A CN105718091A CN201410420943.XA CN201410420943A CN105718091A CN 105718091 A CN105718091 A CN 105718091A CN 201410420943 A CN201410420943 A CN 201410420943A CN 105718091 A CN105718091 A CN 105718091A
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Abstract
The invention relates to the technical field of touch control, and provides a touch control panel with a flexible touch control sensor. The touch control panel comprises the flexible touch control sensor and a cover plate, wherein the cover plate and the flexible touch control sensor are in close contact through an adhesive layer, the flexible touch control sensor at least comprises a sensing electrode structure arranged on a flexible substrate, the sensing electrode structure comprises a first insulation membrane layer and a first patterned conductive layer, the first patterned conductive layer is formed on the first insulation membrane layer, and the first insulation membrane layer is arranged between the flexible substrate and the first patterned conductive layer and is in direct contact with the flexible substrate. By arranging the flexible touch control sensor in the touch control panel, the cover plate of the touch control panel is free from the limitation of a planar structure, and different design demands of a product are further met. Further, the invention also provides a fabrication method for the touch control panel with the flexible touch control sensor.
Description
Technical field
The present invention relates to technical field of touch control, especially with regard to a kind of contact panel with flexible touch control sensor and preparation method thereof.
Background technology
Along with the development of touch technology, contact panel has now been widely used in various electronic product, for instance mobile phone, notebook computer, panel computer, digital camera, electron album etc., carries out input operation for user.
The structure of conventional touch panel generally comprises cover plate, pixel control layer, material owing to forming pixel control layer is generally tin indium oxide etc. and does not have the conductive material of bendable folding endurance, therefore pixel control layer is typically directly formed on cover plate, or it is previously formed on a hard substrate, fit again through a glue-line and cover plate, and cover plate and or substrate formed pixel control layer surface be all only planar structure, in other words, pixel control layer in conventional touch panel is because of the restriction of himself material, can be only formed on the support plate (cover plate or substrate) with certain degree of hardness and surfacing, thus, the range of application of contact panel is subject to certain restrictions, namely it may be only available for the product that input operation face is plane, and the input operation face that cannot be applied to is the product with certain flexibility, thus the growth requirement of product cannot be adapted to.
Summary of the invention
For solving above-mentioned technical problem, the present invention provides a kind of flexible touch control sensor, comprise: the sensing electrode structure being arranged on a flexible parent metal, including one first insulating film layer, and one be formed at one first patterned conductive layer on this first insulating film layer, wherein this first insulating film layer is between this flexible parent metal and this first patterned conductive layer, and directly contacts with this flexible parent metal.
In an alternate embodiment, this sensing electrode structure more includes a conductor layer No.1, is electrically connected with this first patterned conductive layer, wherein, this conductor layer No.1 is arranged on this first insulating film layer, and is positioned at the same surface of this first insulating film layer with this first patterned conductive layer.
In an alternate embodiment, this sensing electrode structure more includes second insulating film layer being arranged on this first patterned conductive layer, and one is formed at one second patterned conductive layer on this second insulating film layer.
In an alternate embodiment, this second insulating film layer covers this first patterned conductive layer and this conductor layer No.1.
In an alternate embodiment, this second insulating film layer covers this first patterned conductive layer of part and avoids the lap-joint of this first patterned conductive layer and this conductor layer No.1.
In an alternate embodiment, this second insulating film layer covers this first patterned conductive layer, and wherein, this first wire is arranged on this second insulating film layer, and is electrically connected with this first patterned conductive layer by the mode of perforation and filled conductive medium.
In an alternate embodiment, this sensing electrode structure more includes one second conductor layer, is electrically connected with this second patterned conductive layer, wherein, this second conductor layer is arranged on this second insulating film layer, and is positioned at the same surface of this second insulating film layer with this second patterned conductive layer.
In an alternate embodiment, this sensing electrode structure more includes a protective layer, is arranged on this first patterned conductive layer.
In an alternate embodiment, the material of this flexible parent metal can be polyimides, polypropylene, polystyrene, acrylonitrile-butadiene-styrene (ABS), polyethylene terephthalate, polrvinyl chloride, Merlon, polyethylene, polymethyl methacrylate, politef, cyclic olefine copolymer or aforementioned combination.
In an alternate embodiment, the thickness of this flexible parent metal is 0.1 micron to 15 microns.
In an alternate embodiment, the thickness of this flexible parent metal is 2 microns to 5 microns.
In an alternate embodiment, this first insulating film layer hot pressing tackness.
In an alternate embodiment, this first patterned conductive layer is formed by the electrocondution slurry including conducting polymer composite or nano metal material etc..
In an alternate embodiment, this first patterned conductive layer is formed by nanometer silver paste.
In an alternate embodiment, this second insulating film layer hot pressing tackness.
In an alternate embodiment, this second patterned conductive layer is formed by the electrocondution slurry including conducting polymer composite or nano metal material etc..
In an alternate embodiment, this second patterned conductive layer is formed by nanometer silver paste.
Additionally, the present invention provides a kind of contact panel comprising above-mentioned flexible touch control sensor, it is characterised in that comprising the flexible touch control sensor described in any of the above-described item and a cover plate, wherein this cover plate and this flexibility touch control sensor are bonded to each other by a glue-line.
In an alternate embodiment, this glue-line is arranged between this base material of this cover plate and this flexibility touch control sensor.
In an alternate embodiment, the surface that this cover plate and this flexibility touch control sensor fit is a plane.
In an alternate embodiment, the surface that this cover plate and this flexibility touch control sensor fit is a curved surface.
In an alternate embodiment, this cover plate is a strengthening glass sheets.
In an alternate embodiment, this cover plate is a sapphire glass plate.
In an alternate embodiment, this cover plate being further provided with a shielding layer, the orthographic projection on this cover plate of this shielding layer at least covers the conductor layer No.1 in this flexibility touch control sensor and the orthographic projection on this cover plate of second conductor layer.
The present invention further provides the method making above-mentioned contact panel, it is characterised in that comprise step: A1: form flexible parent metal on the first support plate；A2: form sensing electrode structure on this flexible parent metal；A3: form the second support plate on this sensing electrode structure；A4: this first support plate is removed on this flexible parent metal；A5: attach cover plate on this flexible parent metal, and this flexible parent metal is between this cover plate and this sensing electrode structure；And A6: this second support plate is removed on this sensing electrode structure.
In an alternate embodiment, in step A1, by the first tack coat, this flexible parent metal is adhered on this first support plate.
In an alternate embodiment, in step A3, by the second tack coat, this second support plate is adhered on this sensing electrode structure.
In an alternate embodiment, in step A4, by the mode of solution soaking, heat treatment, cold treatment, external force stripping or aforementioned combination, this first support plate is removed on this flexible parent metal.
In an alternate embodiment, this the first tack coat is positioned at the surrounding of this first support plate, this sensing electrode structure is positioned at the inside region of this first tack coat, and step A5 includes: this first tack coat is excised by the inner side along this first tack coat, then is removed on this flexible parent metal by this first support plate.
In an alternate embodiment, this first tack coat and this first support plate are positioned at the Partial Resection under this first tack coat by the inner side along this first tack coat.
In an alternate embodiment, this first tack coat is positioned at the surrounding of this first support plate, and this sensing electrode structure is positioned at this first tack coat inside region, also includes between step A1 and step A2: this first tack coat is excised by the inner side along this first tack coat.
In an alternate embodiment, step A6 includes, and this second tack coat first carries out photo-irradiation treatment, heat treatment, cold treatment or aforementioned combination, then this second tack coat and this second support plate is removed on this sensing electrode structure.
In an alternate embodiment, the step forming sensing electrode structure comprises: forms one first insulating film layer on this flexible parent metal, is wherein provided with one on this first dielectric film for forming the conductive material of one first patterned conductive layer；This conductive material of local solidification；Solidify this first insulating film layer；Form this first patterned conductive layer；Form a conductor layer No.1 on this first insulating film layer, and be electrically connected this first patterned conductive layer；Form a protective layer on this first patterned conductive layer.
In an alternate embodiment, formed in this first insulating film layer step on this flexible parent metal, more comprise the step removing first mould release membrance being arranged on this first insulating film layer.
In an alternate embodiment, forming this first insulating barrier mode on this flexible parent metal is by this first insulating film layer is conformed on this flexible parent metal when heating pressurization.
In an alternate embodiment, after this conductive material of local solidification, and before solidification the first insulating film layer, also comprising step and remove the second mould release membrance, wherein, this second mould release membrance is arranged on this conductive material.
In an alternate embodiment, also include forming shielding layer on this cover plate, and this shielding layer is positioned at this cover plate at least side.
The present invention is by being arranged on a flexible parent metal by sensing electrode structure, and the composition and material sensing electrode structure is improved, touch control sensor is made to possess certain pliability, thus being applicable to binding face is the different product design such as plane and curved surface, and the overall structure of flexible touch control sensor also can realize lightening.
Accompanying drawing explanation
Fig. 1 is the top view of the flexibility touch control sensor of invention the first preferred embodiment；
Fig. 2 is the Fig. 1 sectional view along hatching AA '；
Fig. 3 is the flexible touch control sensor manufacture method flow chart in the present invention the first preferred embodiment；
Fig. 4 to Figure 10 is the structural representation in each fabrication steps；
Figure 11 is duallayered electrode structure flexibility touch control sensor top view in invention；
Figure 12 to Figure 14 is the Figure 11 sectional view along hatching BB '；
Figure 15 is the manufacture method flow chart of flexible touch control sensor in the present invention the second preferred embodiment；
Figure 16 is the laminated structure of touch panel schematic diagram in the present invention the 5th preferred embodiment；
Figure 17 is the cover plate sectional view of contact panel in invention one embodiment；
Figure 18 A to 18G is the structural representation in the Making programme of contact panel of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail.It should be noted that, hereinafter detailed features and the advantage of the present invention are described in a specific embodiment in detail, its content is enough to make any relevant art of haveing the knack of understand the technology contents of the present invention and implement according to this, and content disclosed by this specification, claim and graphic, any relevant art of haveing the knack of can be readily understood upon the relevant purpose of the present invention and advantage.With purgation embodiment for further describing the viewpoint of the present invention, but non-to limit the category of the present invention anyways.
Additionally, the accompanying drawing of the present invention is the schematic diagram of simplification, the basic structure of the present invention is only described in a schematic way.Therefore, only indicating the assembly relevant with the present invention in the accompanying drawings, and number when shown assembly is not implemented with reality, shape, dimension scale etc. are drawn, specification during its actual enforcement is that one optionally designs, and its assembly layout form is likely more complexity, first give chat bright.Between the description assembly occurred in description it " on ", D score, "left", "right" position relationship, for the description that carries out with reference to diagram, not limitation of the present invention.
Referring to the top view of the flexibility touch control sensor that Fig. 1 and Fig. 2, Fig. 1 are the present invention the first preferred embodiment, Fig. 2 is the Fig. 1 sectional view along hatching AA '.Flexible touch control sensor 10A comprises flexible parent metal 11, sensing electrode structure 21, wherein sensing electrode structure 21 is arranged on flexible parent metal 11, and include first insulating film layer the 211, first patterned conductive layer 212, wherein the first patterned conductive layer 212 is formed on the first insulating film layer 211, first insulating film layer 211 is between flexible parent metal 11 and the first patterned conductive layer 212, and directly contacts with flexible parent metal 11.
Further, the present embodiment senses electrode structure 21 and more includes conductor layer No.1 213, conductor layer No.1 213 is arranged on the first insulating film layer 211, it is electrically connected the first patterned conductive layer 212 and is positioned at the same side with the first patterned conductive layer 212, in other words, conductor layer No.1 213 and the first patterned conductive layer 212 are positioned at the same surface of the first insulating film layer 211.The first patterned conductive layer 212 in the present embodiment includes multiple first sensing element 2121, is mutually electrically insulated between the first sensing element 2121.Conductor layer No.1 213 and the first sensing element 2121 are electrically connected, and transmit to peripheral control unit with the touching signals that will produce on the first sensing element 2121.
In embodiments of the invention; sensing electrode structure 21 more includes protective layer 214; it is arranged on the first patterned conductive layer 212, and covers the first patterned conductive layer 212, to prevent the first patterned conductive layer 212 oxidation by air or to be scraped off in subsequent fabrication process.In embodiments of the invention, protective layer 214 can further extend and cover conductor layer No.1 213, to provide protection to conductor layer No.1 213 simultaneously.
In the present embodiment, flexible parent metal 11 can be single or multiple lift structure, or the material by lower floor with release ability does not have, with upper strata, the stacked structure that the material of release ability is constituted.The material of flexible parent metal 11 can include polyimides (PI), polypropylene (PP), polystyrene (PS), acrylonitrile-butadiene-styrene (ABS) (ABS), polyethylene terephthalate (PET), polrvinyl chloride (PVC), Merlon (PC), polyethylene (PE), polymethyl methacrylate (PMMA), politef (PTFE), cyclic olefine copolymer (COP, Arton) or aforementioned combination.Flexible parent metal 11 can use coating or other proper methods to be formed, and its thickness can be about 0.1 micron to about 15 microns, it is advantageous to be about 2 microns to 5 microns, but the present invention is not limited thereto.Flexible parent metal 11 is relatively thin relative to common thickness of glass substrate and has good pliability, and the flexible parent metal 11 of this thickness range has good optical characteristics, for instance high penetration.
In the present embodiment, sensing electrode structure 21 is the single layer electrode structure formed by single layer of conductive material, but the present invention is not limited thereto, it can also be duallayered electrode structure, or multi-layer electrode structure, its architectural feature is, form the conductive material of the first patterned conductive layer 212 for being pre-set on the first insulating film layer 211, and after being attached on flexible parent metal 11 by the first insulating film layer 211, it is patterned processing again, thus forming the first patterned conductive layer 212, therefore it is, between the first insulating film layer 211 and flexible parent metal 11 and between the first patterned conductive layer 212 with the first dielectric film 211, the relation directly contacted, between both and be absent from other hierarchical structures.
The first insulating film layer 211 in sensing electrode structure 21 comprises the material such as silica gel or acrylic system glue, and doped with sensitive material, it has the character such as transparent, electrical insulating property, hot pressing tackness and anaerobism (oxygeninhibition) photo-curing.First insulating film layer 211 can pass through the hot pressing tackness of himself, when heating pressurization, it is attached directly to the upper surface of flexible parent metal 11, and can simultaneously as the processing supporting substrate of the first patterned conductive layer 212, so, the first insulating film layer 211 in the embodiment of the present invention can make the processing supporting substrate of the first patterned conductive layer 212, can be used as again and the laminated material of flexible parent metal 11, thus flexible touch control sensor 10A structure can be made to simplify, it is beneficial to and realizes the lightening of flexible touch control sensor 10A.
The first patterned conductive layer 212 in sensing electrode structure 21 adopts the electrically conductive liquid material including conducting polymer composite or nano metal material etc. to make, wherein conducting polymer composite is such as poly-(3,4-ethene dioxythiophene)-polystyrolsulfon acid (PEDOT:PSS), nano metal material can be such as nanometer silver, Nanometer Copper etc..In embodiments of the invention, the material forming ground floor patterned conductive layer 212 preferably can be selected for nanometer silver slurry, and it has good conduction, ductility and high light transmittance, but the present invention is not limited thereto.The conductive material forming the first patterned conductive layer 212 can be selected for having the liquid electrocondution slurry making of anaerobism (oxygeninhibition) photo-curing character, so can be patterned conductive material when not being coated and etch photoresist processing, thus simplifying Making programme, the manufacturing technology of this part will illustrate in subsequent paragraph.
Conductor layer No.1 213 in sensing electrode structure 21 can be single layer structure, such as by a kind of single layer structure formed in the conductive materials such as copper, aluminum, nanometer silver paste, it can also be the structure of two-layer or multilamellar, such as it is stacked with by conductive materials such as molybdenum, aluminum, nanometer silver pastes and is formed, such as the structure of the multilamellars such as molybdenum-aluminum-molybdenum.
Protective layer 214 in sensing electrode structure 21 is formed by transparent insulant, and it can be niobium pentaoxide, silicon dioxide, transparent photoresistance etc..It can be the single layer structure formed by homogenous material; can also be by the stacking multiple structure formed of different materials; such as; niobium pentaoxide and silicon dioxide is had to have protective effect and the multiple structure of pH effect function while being stacked with and being formed; wherein pH effect function refers to and makes naked eyes cannot tell the etching region of conductive material and the difference in non-etched district by refractive index match, with the outward appearance Experience Degree of improving product.
More than for the explanation that carries out for the structure of the present invention the first preferred embodiment and the material character of individual element, next the manufacture method of the flexible touch control sensor in first embodiment will be described in detail.
Refer to Fig. 3 to Figure 10, wherein Fig. 3 is the flexible touch control sensor manufacture method flow chart in the present invention the first preferred embodiment, and Fig. 4 to Figure 10 is the structural representation in each fabrication steps.
The flexible touch control sensor manufacture method flow chart made in the present invention the first preferred embodiment comprises the steps of
S1: remove the first mould release membrance P1 of the first insulating film layer 211 lower surface, and the first insulating film layer 211 is conformed on flexible parent metal 11 by heating the mode of pressurization simultaneously.In this step, it should be added that, first insulating film layer 211 and the first patterned conductive layer 212 are in manufacturing process, it is different from its aspect in ultimately forming structure, also comprises the first release layer P1 and of a lower surface being located at the first insulating film layer 211 separably the second release layer P2 being located at the upper surface of the first patterned conductive layer 212 separably.Wherein, the first patterning conducting shell 212 is by modes such as coating or printings, the electrically conductive liquid material 212a including conducting polymer or nano metal covers the upper surface of the first insulating film layer 211, and imposes cured further and formed.Therefore, in this preparation process, the first patterned conductive layer 212, still in complete membranaceous or stratiform (being namely in the state of flood conductive material 212a), is not subjected to patterned process.
In this step, this pressurized treatments pressure applied is 3.5MPa, processing environment temperature is then 110 degrees Celsius, the first insulating film layer 211 that silica gel or acryl system glue material are formed so can be made to produce tackness after melting, and be attached on flexible parent metal 11 (being such as cooled to certain temperature).But, in the present embodiment, the temperature range of this heat treated may be set between 100 degrees Celsius to 140 degrees Celsius, the pressure limit of this pressurized treatments may be set between 2.5MPa to 5.0MPa, and these process conditions scopes can be effectively taking place the laminating processing procedure of step S1 and maintain good process rate.
S2: refer to Fig. 5.This step mainly to be complied with a predetermined pattern and the conductive material 212a forming the first patterned conductive layer 212 is carried out partial exposure process, makes conductive material 212a form cured pattern in corresponding graphics field.
Specifically, this step is to define the cured pattern of conductive material 212a by the first light shield M1, and wherein the first light shield M1 comprises multiple transparent area M11 and multiple light tight district M12 (representing with blacking part).Owing to first insulating film layer 211 of the present embodiment is respectively provided with anaerobism photo-curing characteristic with conductive material 212a, namely solidified by irradiation under ultraviolet ray under the environmental condition of starvation.This step is covered by conductive material 212a and flexible parent metal 211 respectively on the two sides of the first insulating film layer 211, when the two sides of conductive material 212a is covered by the first dielectric film 212 and the second release layer P2 respectively, the most areas of the first insulating film layer 211 and conductive material 212a is all not directly contacted with the oxygen composition in air, therefore after being irradiated in both by ultraviolet light (such as the ultraviolet light of wavelength 365nm) through the transparent area M11 of the first light shield M1, the part that both correspond to transparent area M11 can be made to solidify, but the part of corresponding light tight district M12 keeps its uncured state, therefore, after conductive material 212a carries out partial exposure process, cured pattern is formed to define the pattern of the first patterned conductive layer 212 in corresponding graphics field.
S3, S4: referring to Fig. 6 and Fig. 7.These steps are intended to that the first insulating film layer 211 carries out whole facial exposure curing and process.
In step S3, first the second release layer P2 is removed from conductive material 212a, make conductive material 212a be exposed among air, come in contact with oxygen.
Then, in step S4, conductive material 212a and the first insulating film layer 211 carrying out whole exposure-processed, and make the first insulating film layer 211 when upper and lower surface is all capped when starvation, entirety is subject to illumination and solidifies.In this step, although conductive material 212a can be influenced by whole facial exposure irradiation, but due to the characteristic of its anaerobism photo-curing, even if being subject to whole facial irradiation under ultraviolet ray in oxygen containing environment, without the solidification reflection producing globality, and it is held in the local solidification state of step S2.So, after step S4 is finished, the integrally curing that can comprehensively complete the first insulating film layer 211 processes, and keeps conductive material 212a to be in the partly solidified state of step S3.
Step S5: refer to Fig. 8, this step has been intended to the patterning processor of conductive material 212a.In this step, by molten parts uncured except conductive material 212a of chemical agent such as such as developing agents (developer), conductive material 212a can be made after carrying out development treatment, to form the first patterned conductive layer 212.First insulating film layer 211 then processes because of the whole facial exposure curing by step S4, in this step will not developed dose molten remove.
Step S6: refer to Fig. 9, this step is intended to form conductor layer No.1 213 on the first insulating film layer 211, and is electrically connected with the first patterned conductive layer 212.In this step, conductor layer No.1 213 is formed and can pass through Screen-printed conductive material (forming the conductive material of conductor layer No.1 213), directly form the mode of conductor layer No.1 213, can also be first be coated with or print whole conductive material, again through the mode of patterning, the present invention is also not limited as.It is understandable that, if the material forming conductor layer No.1 213 is identical with the material forming the first patterned conductive layer 212, its can patterning formed the first patterned conductive layer 212 concurrently form conductor layer No.1 213, in other words, conductor layer No.1 213 and the first patterned conductive layer 212 can be formed in same fabrication steps.
Step S7: refer to Figure 10, this step is intended to form protective layer 214 on the first patterned conductive layer 213, and at least covers the first patterned conductive layer 213.The mode forming protective layer 214 can be printing or coating.
Comprehensive abovementioned steps S1～S7 is known, the present embodiment uses the first insulating film layer 211, form the first pattern changes the characteristic of anaerobism photo-curing of conductive material 212a of conductive layer 212, the patterned process of the first patterned conductive layer 212 can be completed simply through exposure, developing programs, conductive material 212a need not be carried out extra etching and processing, can effectively simplify fabrication steps and promote process rate.But, according to different needs, the patterned process of conductive material 212a can also carry out in different ways, is not limited with from this disclosure.
By the present invention in that the malleable material of apparatus forms each element in sensing electrode structure 21, thus obtaining the malleable sensing electrode structure 21 of tool, and sensing electrode structure 21 and flexible parent metal 11 are directly fitted, without arranging other middle laminated material, finally give structure to simplify and frivolous flexible touch control sensor 10A, this flexibility touch control sensor 10A can be applied not only on traditional plane cover plate, apply also for binding face to have on the curved surface support plate of certain flexibility, thus meeting the product demand of diversification.
In first preferred embodiment of the present invention, sensing electrode structure is single layer electrode structure, and in other embodiments of the present invention, sensing electrode structure can also be double-deck electrode structure, below will be described in detail by Figure 11 to Figure 14.Wherein, Figure 11 is duallayered electrode structure flexibility touch control sensor top view in the present invention, and Figure 12 to Figure 14 is the Figure 11 sectional view along hatching BB '.
Referring to Figure 11 and Figure 12, wherein Figure 12 illustrates the flexible touch control sensor sectional view of the present invention the second preferred embodiment.Flexible touch control sensor 10B in the present embodiment and the flexible touch control sensor 10A in the first preferred embodiment differs primarily in that, the sensing electrode structure 21 in flexible touch control sensor 10B more comprises the second insulating film layer the 215, second patterned conductive layer 216 and the second conductor layer 217.Wherein, other elements composition and annexation in the present embodiment are roughly the same with the first preferred embodiment, repeat no more, it should be noted that second insulating film layer the 215, second patterned conductive layer 216 in the present embodiment and the second conductor layer 217 form with the material of first insulating film layer the 211, first patterned conductive layer 212 in the first preferred embodiment and conductor layer No.1 213 respectively, corresponding structure changes and forming method is corresponding identical.
Specifically, sensing electrode structure 21 comprises the first insulating film layer 211 and is arranged at the upper surface of flexible parent metal 11, first patterned conductive layer 212 is formed on the first insulating film layer 211, conductor layer No.1 213 is formed on the first insulating film layer 211 and is electrically connected the first patterned conductive layer 212, second insulating film layer 215 is arranged on the first patterned conductive layer 212, second patterned conductive layer 216 is formed on the second insulating film layer 215, second conductor layer 217 is formed on the second dielectric film 215, and it is electrically connected at the second patterned conductive layer 216, protective layer 214 is arranged on the second patterned conductive layer 216, and at least cover the second patterned conductive layer 216.In the present embodiment, second insulating film layer 215 is also be mounted directly on the first patterned conductive layer 212 by the mode of heating pressurization, and cover the first patterned conductive layer 212 and conductor layer No.1 213 simultaneously, in other words, second insulating film layer 215 is because himself having hot pressing tackness, can be attached directly on the first patterned conductive layer 212, without by other laminating media.Second insulating film layer 215 covers the first patterned conductive layer 212 and conductor layer No.1 213 simultaneously, can prevent the two oxidation by air, and to the two its protective effect.
What deserves to be explained is, in the present embodiment, first patterned conductive layer 212 comprises D1 extension in a second direction spaced multiple first sensing elements 2121 of D2 in the first direction, second patterned conductive layer 216 comprises D2 extension in the first direction spaced multiple second sensing elements 2161 of D1 in a second direction, in those embodiments, first direction D1 and second direction D2 is mutually perpendicular to, but in other embodiments of the present invention, first direction D1 and second direction D2 can also be mutually in an angle, but is not mutually perpendicular to.
Referring to Figure 11 and Figure 13, wherein Figure 13 illustrates the flexible touch control sensor sectional view of the present invention the 3rd preferred embodiment.Flexible touch control sensor 10C in the present embodiment and the flexible touch control sensor 10B in the second preferred embodiment differs primarily in that, second insulating film layer 215 is arranged on the first patterned conductive layer 212, cover the first patterned conductive layer 212 and avoid the lap-joint 203 of the first patterned conductive layer 212 and conductor layer No.1 213, thus, conductor layer No.1 213 can complete in same fabrication steps with the second conductor layer 217, thus saving fabrication steps.Additionally, other elements composition in the present embodiment is roughly the same with the second preferred embodiment with annexation, repeat no more.
Referring to Figure 11 and Figure 14, wherein Figure 14 illustrates the flexible touch control sensor sectional view of the present invention the 4th preferred embodiment.Flexible touch control sensor 10D in the present embodiment and the flexible touch control sensor 10B in the second preferred embodiment differs primarily in that, conductor layer No.1 213 is formed on the second insulating film layer 215, wherein the electric connection mode of conductor layer No.1 213 and the first patterned conductive layer 212 is, on the second insulating film layer 215, perforation 2150 is set, perforation 2150 is corresponding to the lap-joint 203 of conductor layer No.1 213 and the first patterned conductive layer 212, filled conductive medium 2151 is in perforation 2150, to connect conductor layer No.1 213 and the first patterned conductive layer 212, thus, conductor layer No.1 213 can complete in same fabrication steps with the second conductor layer 217, thus saving fabrication steps.Additionally, other elements composition in the present embodiment is roughly the same with the second preferred embodiment with annexation, repeat no more.
Above-mentioned second, three, flexible touch control sensor 10B in four embodiments, 10C and 10D is compared with first embodiment, main difference is that in sensing electrode structure and increased the second insulating film layer newly, second patterned conductive layer and the second conductor layer, and have adjusted related elements accordingly (such as protective layer, conductor layer No.1) position relationship, therefore the priority formation of its each element in manufacturing process order and the also difference to some extent of the fabrication steps in the first preferred embodiment, below the main manufacture method for the flexible touch control sensor 10B in the second preferred embodiment is illustrated.
Refer to Figure 15, Figure 15 is the manufacture method flow chart of flexible touch control sensor in the present invention the second preferred embodiment.The difference of the embodiment of the method for this method embodiment and the first preferred embodiment is in that, more comprises, before forming the step S7 of protective layer 214 and after the step S6 of formation conductor layer No.1 213, the step S8 to S13 forming second insulating film layer the 215, second patterned conductive layer 216 and the second conductor layer 217.Step owing to forming first insulating film layer the 211, first patterned conductive layer 212 and conductor layer No.1 213 in the present embodiment is identical in the manufacture method of the first preferred embodiment, therefore repeats no more.
Specifically, first it is taken up in order of priority according to method step S1 to S6 and forms the first insulating film layer 211, after first patterned conductive layer 212 and conductor layer No.1 213, it is taken up in order of priority and carries out step S8 to S13, to be formed on the second insulating film layer 215 and the first patterned conductive layer 212 and conductor layer No.1 213, form the second patterned conductive layer 216 and and formed on the second conductor layer 217 and the second insulating film layer on the second insulating film layer 215, and be electrically connected with the second patterned conductive layer 216, wherein, due to the second insulating film layer 215, second patterned conductive layer 216 and the second conductor layer 217 respectively with the first insulating film layer 211, the manufacture method of the first patterned conductive layer 212 and conductor layer No.1 217 is roughly the same, differ only in the difference of the figure of relevant patterning, and the known processing method that this difference is those skilled in the art, therefore, the detailed content of step S8 and S13, can directly to the content that should refer to step S1 to S6, therefore do not repeat them here.
After completing step S8 to S13, further according to step S7, form protective layer 214 on the second patterned conductive layer 216 and the second conductor layer 217.
In the present embodiment, the manufacture method of flexible touch control sensor is simple, and part is the step repeated, therefore the difficulty manufactured can be reduced to a certain extent, further, during structure (such as the second insulating film layer, the second patterned conductive layer etc.) that the present embodiment continues after manufacturing, owing to the hierarchical structure (such as the first insulating film layer, the first patterned conductive layer etc.) being complete being completely covered, therefore these structures can't be produced impact, can better promote the stability of process rate and product structure.
The present invention also provides for a kind of contact panel, comprises the arbitrary flexible touch-control sensing structure in above-described embodiment and a cover plate, specifically refer to Figure 16, Figure 16 and illustrate the laminated structure of touch panel schematic diagram in the present invention the 5th preferred embodiment.
Contact panel 100 comprises flexible touch control sensor 10 and cover plate 30, and wherein flexible touch control sensor 10 is arranged at below cover plate 30, and bonded to each other by glue-line 301 and cover plate 30.In the present embodiment, flexible touch control sensor 10 can be the one in flexible touch control sensor 10A, 10B, 10C, the 10D in above-described embodiment, therefore do not repeat them here.
Cover plate 30 can be formed by a hard substrate, concrete material can be strengthening glass, sapphire glass, polyimides (PI), polypropylene (PP), polystyrene 5 (PS), acrylonitrile-butadiene-styrene (ABS) (ABS), polyethylene terephthalate (PET), polrvinyl chloride (PVC), Merlon (PC), polyethylene (PE), polymethyl methacrylate (PMMA), the one therein such as politef (PTFE), material can be transparent material according to the demand of actual product, also can be opaque or translucent material, the present invention is not limited thereto.Cover plate 30 can also be formed by a reelability base material, and the present invention is also not limited as.The lower surface 31 of cover plate 30 fits with flexible sensor 10, its upper surface 32 can as the contact surface of touch object, in the present embodiment, the lower surface 31 of cover plate 30 is a planar structure, needing especially set out, in other embodiments of the present invention, the lower surface 31 of cover plate 30 can be a curved-surface structure with certain radian, refer to Figure 17, Figure 17 is the cover plate sectional view of contact panel in invention one embodiment.In embodiments of the invention, owing to flexible touch control sensor 10 possesses certain pliability, therefore can be attached on the cover plate of the curved-surface structure with certain radian, thus meeting different product demands.In addition, in embodiment shown in Figure 16, cover plate 30 is more provided with shielding layer 40, shielding layer 40 is between glue-line 301 and cover plate 30, and conductor layer No.1 213 and the second conductor layer 217 in the flexible touch control sensor 10 of correspondence is arranged, specifically, shielding layer 40 is formed at the lower surface 31 of cover plate 30, and the orthographic projection on cover plate 30 can at least cover conductor layer No.1 213 and the orthographic projection on cover plate 30 of second conductor layer 217, wherein, shielding layer 40 is formed by lighttight ink or photoresist, can to conductor layer No.1 213 and 217 bridging effects of the second conductor layer, user is made not can be appreciated that conductor layer No.1 213 and the second conductor layer 217 in appearance in product, outward appearance with optimizing product, and shielding layer 40 can be passed through and define display and the touch control operation region of product, to facilitate the user interface providing friendly.It should be noted that, in other embodiments of the present invention, shielding layer 40 also can be formed at the upper surface of cover plate 30, and the present invention is not limited thereto.
Glue-line 301 is arranged between cover plate 30 and flexible touch control sensor 10, both to be fitted.Glue-line 301 is formed by optical cement, and it can be liquid glue water, it is also possible to for solid film, the present invention is not limited thereto.
Flexible touch control sensor 10 is arranged at glue-line 301 times, in the present embodiment, the flexible parent metal 11 of flexible touch control sensor 10 contacts with glue-line 301, namely flexible parent metal 11 is between glue-line 301 and sensing electrode structure 21, in the present embodiment, flexible parent metal 11 being located between sensing electrode structure 21 and cover plate 30, sensing electrode structure 21 can being played buffering and explosion-proof effect, thus improving the stability of product.It should be noted that in other embodiments of the present invention, sensing electrode structure 21 may be disposed between glue-line 301 and flexible parent metal 11, so that sensing electrode structure 21 is near user operation face, it is thus possible to the more rapid and accurate touching signals obtaining user.
Hereinafter the manufacture method of the contact panel to the invention described above the 5th preferred embodiment is illustrated.
Refer to the structural representation in the Making programme that Figure 18 A to Figure 18 G, Figure 18 A to Figure 18 G is contact panel of the present invention.
Please also refer to Figure 18 A, first, it is provided that the first support plate Z1, and form flexible parent metal 11 on the first support plate Z1.First support plate Z1 can as the mechanical support of the structure formed in subsequent step, and it can be a transparent or opaque substrate, for instance a glass substrate.
In this embodiment, the first tack coat G1 can be passed through to be adhered on the first support plate Z1 by flexible parent metal 11.First tack coat G1 is the sticker of the functional group including the sense of close organic material and the inorganic material of parent, specifically, the inorganics such as glass are adopted as the first support plate Z1, and flexible parent metal 11 is when adopting the organic materials such as polyimides, the different functional groups that first tack coat G1 comprises, it is suitable for the adhesiveness of two kinds of unlike materials, can comparatively securely flexible parent metal 11 be fixed on the first support plate Z1.Simultaneously, consider that follow-up flexible parent metal 11 needs easier to remove on the first support plate Z1, first tack coat G1 can be set and be positioned at the surrounding of the first support plate Z1, such as it is positioned at the neighboring area N of the first support plate Z1, make flexible parent metal 11 better with the first support plate Z1 caking property in the part of neighboring area N, the flexible parent metal 11 region (such as inside region M) beyond the N of neighboring area is relatively low with the caking property of the first support plate Z1, to guarantee in successive process, flexible parent metal 11 both can securely depend on the first support plate Z1, can remove from the first support plate Z1 comparatively easily again when needing to remove, its concrete removing method hereinafter will describe in detail again.But it is understood that, in other embodiments, first tack coat G1 can also be one whole be covered on the first support plate Z1, and flexible parent metal 11 is formed on the first tack coat G1, specifically, under this scheme, first tack coat G1 can adopt the material that adhesiveness can change, namely in processing procedure process, itself and the first support plate Z1 have stronger adhesive force, after processing procedure terminates, can be soaked by particular solution again or the mode such as Temperature Treatment is to reduce its cohesiveness, be beneficial to the first support plate Z1 and remove on flexible parent metal 11.
Then, referring to Figure 18 B, form sensing electrode structure 21 on flexible parent metal 11, sensing electrode structure 21 is positioned at the inside region M of the first tack coat G1.The concrete grammar being formed with sensing electrode structure 21 can refer to the embodiment shown in Fig. 3 or Figure 15, therefore does not repeat them here.
Refer to Figure 18 C, form the second support plate Z2 on sensing electrode structure 21, the second support plate Z2 more can partly or entirely cover sensing electrode structure 21, can pass through the second tack coat G2 and be adhered to by the second support plate Z2 and to sense electrode structure 21.The material of the second support plate Z2 includes the polymer of such as polyethylene terephthalate (PET) or can support a film assembly according to embodiments of the present invention so as to be transferred to any suitable material of cover plate, for instance glass, cyclic olefine copolymer (COP, Arton), polypropylene (PP) etc..Second tack coat G2 is a removable binding agent, and this second tack coat G2 can include water-insoluble glue maybe can by two-layer temporary adhesive attachment together and follow-up other suitable material any being dissolved or being otherwise removed to.
Then, refer to Figure 18 D and Figure 18 E, the first support plate Z1 is removed on flexible parent metal 11.As shown in Figure 18 D, first along the inner side of the first tack coat G1 by the first tack coat G1 and be positioned at the structure excision on the first tack coat G1, that is can cut along the line of cut CC ' shown in Figure 18 D.Then again the first support plate Z1 is removed on flexible parent metal 11, owing to the first tack coat G1 excision of main sticking action first will be played, remove the first support plate Z1 again, the impact of the stress other structure on being formed on flexible parent metal 11 and flexible parent metal 11 in the process removing the first support plate Z1 can be reduced.It addition, when excising the first tack coat G1, cutting parameter can be controlled so that it is will not cut to the first support plate Z1, so, the first repeatable utilization of support plate Z1, it is beneficial to reduce cost.In another embodiment, first along the inner side of the first tack coat G1, the part that the first tack coat G1 and the first support plate Z1 is positioned under the first tack coat G1 can all be excised, then remove the first support plate Z1 after being cut again.Or in another embodiment, can between the step forming sensing electrode structure 21 and the step forming the second support plate Z2, inner side along the first tack coat G1 by the first tack coat G1 and is positioned at the structure excision on the first tack coat G1, simultaneously, first support plate Z1 still retains, after treating that the second support plate Z2 is formed, then the first support plate Z1 is removed.
It should be noted that, when removing the first support plate Z1, can assist or adopt other measure release to facilitate.First support plate Z1 is removed by the mode such as by solution soaking, heat treatment, cold treatment, external force stripping or aforementioned combination on flexible parent metal 11.Solution used can be water, ethanol, propylene glycol methyl ether acetate (PGMEA) solution, polyvinylidene fluoride (NMP) solution etc.；Adopt heat treatment and cold treatment, be that the first support plate Z1 is heated or cools down, utilize the thermal coefficient of expansion different generation stress of flexible parent metal 11 and the first support plate Z1 and then facilitate release.
Then, refer to Figure 18 F, attach cover plate 30 on flexible parent metal 11, glue-line 301 can be passed through cover plate 30 and flexible parent metal 11 are attached onto with lamination or alternate manner, and flexible parent metal 11 is between cover plate 160 and flexible parent metal 11, namely stacking order is from top to bottom cover plate 30, glue-line 301, flexible parent metal 11, flexible parent metal 11, sensing electrode structure the 21, second tack coat G2 and the second support plate Z2.
Additionally, before attaching cover plate 30, shielding layer 40 can be formed on cover plate 30, shielding layer 40 is positioned at least side of cover plate 30, in order to cover conductor layer No.1 and the second conductor layer (not showing in Figure 18 F) so that conductor layer No.1 and the second conductor layer are not easy to be easily seen by the user from the side of cover plate 30 upper surface.In the present embodiment, shielding layer 40 is positioned at the lower surface of cover plate 30, namely is positioned at the cover plate 30 one side relative to flexible parent metal 11.In another embodiment, shielding layer 40 can be located at the upper surface of cover plate 30, namely is positioned at the cover plate 30 one side relative to flexible parent metal 11.Or in other embodiments, shielding layer 40 can also be a decoration coating (Deco-film), this decoration coating specifically includes a transparent membrane, the neighboring area of this transparent membrane is provided with shielding layer, this decoration coating can be directly arranged at the upper surface of cover plate, this decoration coating also can be adopted to replace cover plate 30 and shielding layer 40.
Finally, refer to Figure 18 G, will the second support plate Z2 and the second tack coat G2 self-inductance measurement electrode structure 21 remove.Concrete, first the second tack coat G2 can be carried out pretreatment, including photo-irradiation treatment, heat treatment or cold treatment or aforementioned combination, for example, material according to the second tack coat G2 is different, the means such as irradiation under ultraviolet ray, heating or cooling that can be respectively adopted make the cohesiveness of the second tack coat G2 reduce, then will remove on the second tack coat G2 and the second support plate Z2 self-inductance measurement electrode structure 21.Can according to the different mode that removes of the material selection of the second tack coat G2, the present invention is not limited thereto.
The contact panel 100 as shown in Figure 18 G is ultimately formed via above-mentioned steps, contact panel 100 includes from top to bottom stacking cover plate 30, glue-line 301, flexible parent metal 11 and senses electrode structure 21, namely flexible parent metal 11 is positioned on cover plate 30, and sensing electrode structure 21 is positioned on flexible parent metal 11.Glue-line 301 is between cover plate 30 and flexible parent metal 11.Further, contact panel 100 also includes shielding layer 40, and shielding layer 40 is positioned at least side of cover plate 30.The structure of former components, material, manufacture method describe above, therefore do not repeat them here.Contact panel 100 can be applicable in the touch control display apparatus such as computer system, mobile phone, digital media player.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within the scope of protection of the invention.
Claims (37)
1. a flexible touch control sensor, it is characterized in that, comprise: the sensing electrode structure being arranged on a flexible parent metal, including one first insulating film layer, and one be formed at one first patterned conductive layer on this first insulating film layer, wherein this first insulating film layer is between this flexible parent metal and this first patterned conductive layer, and directly contacts with this flexible parent metal.
2. flexible touch control sensor as claimed in claim 1, it is characterized in that, this sensing electrode structure more includes a conductor layer No.1, it is electrically connected with this first patterned conductive layer, wherein, this conductor layer No.1 is arranged on this first insulating film layer, and is positioned at the same surface of this first insulating film layer with this first patterned conductive layer.
3. touch control sensor as claimed in claim 2 flexible, it is characterised in that this sensing electrode structure more includes second insulating film layer being arranged on this first patterned conductive layer, and one be formed at one second patterned conductive layer on this second insulating film layer.
4. flexible touch control sensor as claimed in claim 3, it is characterised in that this second insulating film layer covers this first patterned conductive layer and this conductor layer No.1.
5. flexible touch control sensor as claimed in claim 3, it is characterised in that this second insulating film layer covers this first patterned conductive layer of part and avoids the lap-joint of this first patterned conductive layer and this conductor layer No.1.
6. flexible touch control sensor as claimed in claim 3, it is characterized in that, this second insulating film layer covers this first patterned conductive layer, wherein, this first wire is arranged on this second insulating film layer, and is electrically connected with this first patterned conductive layer by the mode of perforation and filled conductive medium.
7. flexible touch control sensor as claimed in claim 3, it is characterized in that, this sensing electrode structure more includes one second conductor layer, it is electrically connected with this second patterned conductive layer, wherein, this second conductor layer is arranged on this second insulating film layer, and is positioned at the same surface of this second insulating film layer with this second patterned conductive layer.
8. flexible touch control sensor as claimed in claim 1, it is characterised in that this sensing electrode structure more includes a protective layer, is arranged on this first patterned conductive layer.
9. flexible touch control sensor as claimed in claim 1, it is characterized in that, the material of this flexible parent metal can be polyimides, polypropylene, polystyrene, acrylonitrile-butadiene-styrene (ABS), polyethylene terephthalate, polrvinyl chloride, Merlon, polyethylene, polymethyl methacrylate, politef, cyclic olefine copolymer or aforementioned combination.
10. flexible touch control sensor according to claim 1, it is characterised in that the thickness of this flexible parent metal is 0.1 micron to 15 microns.
11. flexible touch control sensor according to claim 1, it is characterised in that the thickness of this flexible parent metal is 2 microns to 5 microns.
12. flexible touch control sensor as claimed in claim 1, it is characterised in that this first insulating film layer hot pressing tackness.
13. flexible touch control sensor as claimed in claim 1, it is characterised in that this first patterned conductive layer is formed by the electrocondution slurry including conducting polymer composite or nano metal material etc..
14. flexible touch control sensor as claimed in claim 1, it is characterised in that this first patterned conductive layer is formed by nanometer silver paste.
15. flexible touch control sensor as claimed in claim 3, it is characterised in that this second insulating film layer hot pressing tackness.
16. flexible touch control sensor as claimed in claim 3, it is characterised in that this second patterned conductive layer is formed by the electrocondution slurry including conducting polymer composite or nano metal material etc..
17. flexible touch control sensor as claimed in claim 3, it is characterised in that this second patterned conductive layer is formed by nanometer silver paste.
18. a contact panel, it is characterised in that comprise the flexible touch control sensor described in any one of the claims and a cover plate, wherein this cover plate and this flexibility touch control sensor are bonded to each other by a glue-line.
19. contact panel as claimed in claim 16, it is characterised in that this glue-line is arranged between this base material of this cover plate and this flexibility touch control sensor.
20. contact panel as claimed in claim 16, it is characterised in that the surface that this cover plate and this flexibility touch control sensor fit is a plane.
21. contact panel as claimed in claim 16, it is characterised in that the surface that this cover plate and this flexibility touch control sensor fit is a curved surface.
22. contact panel as claimed in claim 16, it is characterised in that this cover plate is a strengthening glass sheets.
23. contact panel as claimed in claim 16, it is characterised in that this cover plate is a sapphire glass plate.
24. contact panel as claimed in claim 16, it is characterised in that being further provided with a shielding layer on this cover plate, the orthographic projection on this cover plate of this shielding layer at least covers the conductor layer No.1 in this flexibility touch control sensor and the orthographic projection on this cover plate of second conductor layer.
25. the manufacture method of a contact panel, it is characterised in that comprise step:
A1: form flexible parent metal on the first support plate；
A2: form sensing electrode structure on this flexible parent metal；
A3: form the second support plate on this sensing electrode structure；
A4: this first support plate is removed on this flexible parent metal；
A5: attach cover plate on this flexible parent metal, and this flexible parent metal is between this cover plate and this sensing electrode structure；And
A6: this second support plate is removed on this sensing electrode structure.
26. the manufacture method of contact panel as claimed in claim 23, it is characterised in that in step A1, by the first tack coat, this flexible parent metal is adhered on this first support plate.
27. the manufacture method of contact panel as claimed in claim 23, it is characterised in that in step A3, by the second tack coat, this second support plate is adhered on this sensing electrode structure.
28. the manufacture method of contact panel as claimed in claim 23, it is characterised in that in step A4, by the mode of solution soaking, heat treatment, cold treatment, external force stripping or aforementioned combination, this first support plate is removed on this flexible parent metal.
29. the manufacture method of contact panel as claimed in claim 24, it is characterized in that, this the first tack coat is positioned at the surrounding of this first support plate, this sensing electrode structure is positioned at the inside region of this first tack coat, step A5 includes: this first tack coat is excised by the inner side along this first tack coat, then is removed on this flexible parent metal by this first support plate.
30. the manufacture method of contact panel as claimed in claim 27, it is characterised in that this first tack coat and this first support plate are positioned at the Partial Resection under this first tack coat by the inner side along this first tack coat.
31. the manufacture method of contact panel as claimed in claim 24, it is characterized in that, this the first tack coat is positioned at the surrounding of this first support plate, this sensing electrode structure is positioned at this first tack coat inside region, also includes between step A1 and step A2: this first tack coat is excised by the inner side along this first tack coat.
32. the manufacture method of contact panel as claimed in claim 25, it is characterized in that, step A6 includes, and this second tack coat first carries out photo-irradiation treatment, heat treatment, cold treatment or aforementioned combination, then this second tack coat and this second support plate is removed on this sensing electrode structure.
33. the manufacture method of contact panel as claimed in claim 23, it is characterised in that the step forming sensing electrode structure comprises:
Form one first insulating film layer on this flexible parent metal, this first dielectric film is wherein provided with one for forming the conductive material of one first patterned conductive layer；
This conductive material of local solidification；
Solidify this first insulating film layer；
Form this first patterned conductive layer；
Form a conductor layer No.1 on this first insulating film layer, and be electrically connected this first patterned conductive layer；
Form a protective layer on this first patterned conductive layer.
34. the manufacture method of contact panel as claimed in claim 33, it is characterised in that formed in this first insulating film layer step on this flexible parent metal, more comprise the step removing first mould release membrance being arranged on this first insulating film layer.
35. the manufacture method of the contact panel as described in claim 33 or 34, it is characterised in that forming this first insulating barrier mode on this flexible parent metal is by this first insulating film layer is conformed on this flexible parent metal when heating pressurization.
36. the manufacture method of contact panel as claimed in claim 33, it is characterised in that after this conductive material of local solidification, and before solidification the first insulating film layer, also comprise step and remove the second mould release membrance, wherein, this second mould release membrance is arranged on this conductive material.
37. the manufacture method of contact panel as claimed in claim 23, it is characterised in that also include forming shielding layer on this cover plate, and this shielding layer is positioned at this cover plate at least side.
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| CN201410420943.XA CN105718091A (en) | 2014-08-17 | 2014-08-17 | Touch control panel with flexible touch control sensor and fabrication method of touch control panel |
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| CN201410420943.XA CN105718091A (en) | 2014-08-17 | 2014-08-17 | Touch control panel with flexible touch control sensor and fabrication method of touch control panel |
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| CN111352525A (en) * | 2018-12-21 | 2020-06-30 | 纳米及先进材料研发院有限公司 | Low-pressure capacitive touch sensor and preparation method thereof |
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