Utility model content
The purpose of the utility model is to provide a kind of touch-control sensors, and wherein conductive grid lines have lower visualProperty；The another object of the utility model is to provide a kind of touch-control display panel, wherein conductive grid lines have it is lower canDepending on property.
In order to solve the above technical problems, the utility model provides a kind of touch-control sensor, including substrate, the first conductive gridLayer, the first insulating layer and the second conductive mesh layer；
First conductive mesh layer includes the first transparent protective layer positioned at the substrate surface, is located at described first thoroughlyBright protective layer backwards to one side surface of substrate the first silver layer, positioned at first silver layer backwards to one side surface of substrateSecond transparent protective layer；First insulating layer is located at first conductive mesh layer backwards to one side surface of substrate；It is describedSecond conductive mesh layer includes the third transparent protective layer positioned at first insulating layer backwards to one side surface of substrate；It is located atSecond silver layer of the third transparent protective layer backwards to one side surface of substrate；Positioned at second silver layer backwards to the substrate4th transparent protective layer of one side surface；
The thickness of first silver layer and second silver layer is no more than 20nm.
Optionally, first transparent protective layer, second transparent protective layer, the third transparent protective layer and described4th transparent protective layer is ito film layer.
Optionally, the value range of the thickness of the ito film layer is 30nm to 50nm, including endpoint value.
Optionally, first conductive mesh layer is located at the visible area of the substrate surface；
The touch-control sensor further includes the ink layer positioned at substrate surface non-visible area domain.
Optionally, the ink layer is black ink layer.
Optionally, the substrate is glass substrate.
Optionally, the touch-control sensor further include:
Positioned at second conductive mesh layer backwards to the second insulating layer of one side surface of substrate.
Optionally, the touch-control sensor further include:
Positioned at the second insulating layer backwards to the cover board of one side surface of substrate.
Optionally, the cover board is tempered glass cover plate.
The utility model additionally provides a kind of touch-control display panel, including display screen and touch-control as described in any one of the above embodimentsInductor.
A kind of touch-control sensor provided by the utility model, wherein mainly playing electric action in the first conductive mesh layerThe thickness of the second silver layer of electric action is mainly played in first silver layer and the second conductive mesh layer no more than 20nm.When upperWhen stating the thickness of silver layer no more than 20nm, the first silver layer and the second silver layer are in translucent state, have to light very highPermeability.The first transparent protective layer in the setting of two surface of the first silver layer, the second transparent protective layer simultaneously, and in the second silver layerTwo surfaces setting third transparent protective layer, the 4th transparent protective layer be transparent protective layer so that the first conductive mesh layer withAnd second conductive mesh layer to light permeability with higher, i.e., at this time conductive grid lines have lower visuality, makeConductive grid lines can not be identified easily by obtaining naked eyes, to promote user experience.
The utility model embodiment additionally provides a kind of touch-control display panel, equally has above-mentioned beneficial effect, herein notIt is repeated again.
Specific embodiment
The core of the utility model is to provide a kind of touch-control sensor.In the prior art, it is mainly risen in metal grillThe conductive layer of electric action is usually with copper, aluminium etc. for main material, this but also the conductor wire of metal grill have it is impermeableBright characteristic.Since conductor wire does not have permeability to light, so that metal grill lines visuality with higher.
And a kind of touch-control sensor provided by the utility model, wherein mainly playing electric action in the first conductive mesh layerThe first silver layer and the second conductive mesh layer in mainly rise electric action the second silver layer thickness no more than 20nm.WhenWhen the thickness of above-mentioned silver layer is not more than 20nm, the first silver layer and the second silver layer are in translucent state, have to light very highPermeability.The first transparent protective layer in the setting of two surface of the first silver layer, the second transparent protective layer simultaneously, and in the second silver medalThird transparent protective layer, the 4th transparent protective layer of two surface of layer setting are transparent protective layer, so that the first conductive mesh layerAnd second conductive mesh layer to light permeability with higher, i.e., at this time conductive grid lines have lower visuality,So that naked eyes can not identify conductive grid lines easily, to promote user experience.
In order to make those skilled in the art better understand the scheme of the utility model, with reference to the accompanying drawing and specific implementationThe utility model is described in further detail for mode.Obviously, described embodiment is only the utility model a partEmbodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doingEvery other embodiment obtained under the premise of creative work out, fall within the protection scope of the utility model.
Referring to FIG. 1, Fig. 1 is a kind of structural schematic diagram of touch-control sensor provided by the utility model embodiment.
Referring to Fig. 1, in the utility model embodiment, the touch-control sensor include substrate 1, the first conductive mesh layer 2,First insulating layer 3 and the second conductive mesh layer 4；First conductive mesh layer 2 include positioned at 1 surface of substrate first thoroughlyBright protective layer 21 is located at described positioned at first transparent protective layer 21 backwards to the first silver layer 22 of 1 one side surface of substrateSecond transparent protective layer 23 of first silver layer 22 backwards to 1 one side surface of substrate；First insulating layer 3 is located at described firstConductive mesh layer 2 is backwards to 1 one side surface of substrate；Second conductive mesh layer 4 includes being located at first insulating layer 3 to carry on the backTo the third transparent protective layer 41 of 1 one side surface of substrate；Positioned at the third transparent protective layer 41 backwards to the substrate 1 oneSecond silver layer 42 of side surface；Positioned at second silver layer 42 backwards to the 4th transparent protective layer 43 of 1 one side surface of substrate；The thickness of first silver layer 22 and second silver layer 42 is no more than 20nm.
Above-mentioned first conductive mesh layer 2 is located at the surface of substrate 1, and the first insulating layer 3 is located at the first conductive mesh layer 2 backwards1 one side surface of substrate, the second conductive mesh layer 4 are located at the first insulating layer 3 backwards to 1 one side surface of substrate.Aforesaid substrate 1 is settingThe substrate 1 of the equal components of the first following conductive mesh layers 2.Since at this stage, touch-control sensor usually requires and display panelIt is used cooperatively, so the generally transparent substrate 1 of aforesaid substrate 1, so that the light that display panel is issued penetrates the utility modelTouch-control sensor provided by embodiment.Specifically, the specific material of the substrate 1 can be glass, the film, such as PC,PET, COP, PEN, COC etc., or the composite plate being made of above-mentioned material.Certain substrate 1 can also select otherThe substrate 1 of material, the specific material in relation to substrate 1 in the utility model embodiment and are not specifically limited.
Above-mentioned first conductive mesh layer 2 is located at the surface of substrate 1, which includes first transparency protectedThe 21, first silver layer 22 of layer and the second transparent protective layer 23.Wherein the first transparent protective layer 21 is located at 1 surface of substrate, with substrate 1Directly contact；First silver layer 22 is located at the first transparent protective layer 21 backwards to 1 one side surface of substrate, mainly plays electric action；TheTwo transparent protective layers 23 are located at the first silver layer 22 backwards to 1 one side surface of substrate, above-mentioned first transparent protective layer 21, the first silver layer 22The first conductive mesh layer 2 constituted with the second transparent protective layer 23 is sandwich, constitutes the first conductive mesh layer 2Conductor wire is sandwich.It is wherein silver positioned at the material of the first silver layer 22 of middle layer, is mainly used for conduction；And it is above-mentionedFirst transparent protective layer 21 and the second transparent protective layer 23 are used to protect above-mentioned first silver layer 22 to be not easy to be destroyed and rottenErosion.It should be noted that first conductive mesh layer 2 is usually one layer of reticular structure being made of conductor wire.Related first leadsThe contents such as the specific structure of mesh layer 2 can refer to the prior art, no longer be repeated herein.
Above-mentioned first insulating layer 3 is located at the first conductive mesh layer 2 backwards to 1 one side surface of substrate, specifically, the first insulating layer3 are located at above-mentioned second transparent protective layer 23 backwards to 1 one side surface of substrate.First insulating layer 3 is also commonly referred to as OC (OverCoat) layer primarily serves the effect of insulation and protection, prevents above-mentioned first conductive mesh layer 2 and following second conductive gridsShort circuit occurs between layer 4, while playing the role of protecting conductive mesh layer.It should be noted that since the utility model is implementedTouch-control sensor provided by example usually requires cooperation display and uses, and touch-control sensor usually requires to keep higher to lightCross rate, the generally transparent insulating layer of above-mentioned first insulating layer 3.Specific material in relation to the first insulating layer 3 can refer to existing skillArt in the utility model embodiment and is not specifically limited.
Above-mentioned second conductive mesh layer 4 is located at the first insulating layer 3 backwards to 1 one side surface of substrate.With the first conductive mesh layer 2Similar, the second conductive mesh layer 4 includes third transparent protective layer 41, the second silver layer 42 and the 4th transparent protective layer 43.ItsMiddle third transparent protective layer 41 is located at the first insulating layer 3 backwards to 1 one side surface of substrate, directly contacts with the first insulating layer 3；SecondSilver layer 42 is located at third transparent protective layer 41 backwards to 1 one side surface of substrate, mainly plays electric action；4th transparent protective layer 43Positioned at the second silver layer 42 backwards to 1 one side surface of substrate, above-mentioned third transparent protective layer 41, the second silver layer 42 and the 4th are transparency protectedThe second conductive mesh layer 4 that layer 43 is constituted is sandwich, and the conductor wire for constituting the second conductive mesh layer 4 is sandwichType structure.It is wherein silver positioned at the material of the second silver layer 42 of middle layer, is mainly used for conduction；And above-mentioned third transparent protective layer41 and the 4th transparent protective layer 43 be used to that above-mentioned second silver layer 42 is protected to be not easy to be destroyed and corrode.It needs to illustrateIt is that second conductive mesh layer 4 is usually one layer of reticular structure being made of conductor wire.Tool in relation to the second conductive mesh layer 4The contents such as body structure can refer to the prior art, no longer be repeated herein.
The thickness of above-mentioned first silver layer 22 and the second silver layer 42 is no more than 20nm, i.e., the in the utility model embodimentThe thickness of one silver layer 22 and the second silver layer 42 is less than or equal to 20nm.When the thickness of silver layer is less than or equal to 20nm, entire silver layerA kind of translucent can be showed, there is biggish transmitance to light.By above-mentioned first silver layer 22 and the second silver layer 42Thickness, which is limited in 20nm once, can greatly increase the transmission of the first conductive mesh layer 2 and second 4 pairs of light of conductive mesh layerRate, to reduce the visuality of the first conductive mesh layer 2 and the second conductive mesh layer 4.Under normal conditions, in the utility modelThe thickness of the first conductive mesh layer 2 and the second conductive mesh layer 4 is usually in 10nm between 20nm in embodiment, including endpointValue.
It should be noted that needing phase between the second conductive mesh layer 4 and above-mentioned first conductive mesh layer 2 under normal conditionsMutually contraposition, so-called contraposition typically refer to the cross one another point of conductor wire in the first conductive mesh layer 2 and need and the second conductive gridThe grid element center that conductor wire is constituted in layer 4 aligns, with by above-mentioned first conductive mesh layer 2 and the second conductive mesh layer 4 itBetween form capacitor, with realize to the positioning for touch area.Under normal conditions, first described in the utility model embodimentConductive mesh layer 2 is usually the channel RX, also referred to as induction channels；And the second conductive mesh layer 4 is usually the channel TX, is also referred to as drivenDynamic channel；Capacitor is formed between the channel RX and the channel TX.
The contents such as the specific structure in relation to the second conductive mesh layer 4 can refer to the prior art, no longer be repeated herein.Concrete operating principle in relation to conductive grid class touch-control sensor can refer to the prior art, equally no longer be repeated herein.
It is first transparent protective layer 21, described second transparency protected preferably, in the utility model embodimentLayer 23, the third transparent protective layer 41 and the 4th transparent protective layer 43 are ito film layer.I.e. above-mentioned first is transparency protectedThe material of 21 to the 4th transparent protective layer 43 of layer is ITO.ITO, that is, tin indium oxide, tin indium oxide have good electric conductivity withAnd the transparency, it is commonly used for making touch sensing etc..Ito film layer has complete, mature preparation process at this stage, hasVery high yields.
Specifically, the value range of the thickness of above-mentioned ito film layer is usually 30nm to 50nm, including endpoint value.It is i.e. above-mentionedFirst transparent conductive film layer, the second transparent conductive film layer, third transparent conductive film layer and the 4th transparent conductive film layer thicknessIn 40nm or so, error range is in 10nm or so.In the utility model embodiment, set gradually on 1 surface of glass substrateThe ito film layer of one layer of 40nm thickness, a layer thickness 10nm between 20nm silver layer, a layer thickness 40nm thickness ito film layerLater, before etching, whole face can reach 50% to 70% to the transmitance of light.And in the prior art in etching conductive netBefore ruling, whole face is lighttight structure.Meanwhile the sheet resistance of the above-mentioned film layer structure that 1 surface of glass substrate is arranged in is in 2 ΩHereinafter, sheet resistance is very low, the requirement for meeting metal grill class touch-control sensor can be very good, can make the touch-control sense of large areaAnswer device.
A kind of touch-control sensor provided by the utility model embodiment is led wherein mainly rising in the first conductive mesh layer 2The thickness of the second silver layer 42 of electric action is mainly played in first silver layer 22 of electro ultrafiltration and the second conductive mesh layer 4 notGreater than 20nm.When the thickness of above-mentioned silver layer is not more than 20nm, the first silver layer 22 and the second silver layer 42 are in translucent shapeState has very high permeability to light.It is transparent in the first transparent protective layer 21, second of 22 liang of surfaces of the first silver layer setting simultaneouslyProtective layer 23, and be in third transparent protective layer 41, the 4th transparent protective layer 43 of 42 liang of surfaces of the second silver layer settingBright protective layer, so that the first conductive mesh layer 2 and the second conductive mesh layer 4 be to light permeability with higher, i.e., at this timeConductive grid lines have lower visuality, so that naked eyes can not identify conductive grid lines easily, to promote user's bodyIt tests.
It will be in following utility model embodiments in relation to a kind of specific structure of touch-control sensor provided by the utility modelIn be described in detail.
Referring to FIG. 2, Fig. 2 is a kind of structural representation of specific touch-control sensor provided by the utility model embodimentFigure.
It is different from above-mentioned utility model embodiment, the utility model embodiment is on the basis of above-mentioned utility model embodimentOn, further the structure of touch-control sensor is specifically limited.Remaining content in above-mentioned utility model embodiment intoIt has gone and has been discussed in detail, no longer repeated herein.
Referring to fig. 2, in the utility model embodiment, first conductive mesh layer 2 is usually located at 1 surface of substrateVisible area；Correspondingly, above-mentioned first insulating layer 3 and the second conductive mesh layer 4 be generally also respectively positioned on touch-control sensor canViewed area.At this point, the touch-control sensor can also include the ink layer 5 positioned at the 1 surface non-visible area domain of substrate.
In the utility model embodiment, touch-control sensor is divided into visible area and non-visible area domain.Above-mentioned visible areaBe provided with the induction region by constituting based on the first conductive mesh layer 2, the second conductive mesh layer 4, the induction region be used forThe region of family touching is positioned；And it is usually provided in above-mentioned non-visible area domain and draws with what above-mentioned conductive mesh layer was electrically connectedThe component of line, FPC, driving IC etc. for electric signal caused by above-mentioned induction region to be transmitted and identified, thusRealize the identification to user's touch area.Under normal conditions, above-mentioned visible area is usually located at the center of touch-control sensor, it is non-canViewed area usually surrounds above-mentioned visible area in a ring.
And in the utility model embodiment, in order to cover the components such as the lead that non-visible area domain is arranged in, FPC, so thatTouch-control sensor is more beautiful, and the non-visible area domain on 1 surface of aforesaid substrate is usually provided with ink layer 5；Specifically, the inkLayer 5 is usually black ink layer 5.Above-mentioned ink layer 5 can play the role of decoration, and masking setting is non-visual in touch-control sensorThe components such as lead, the FPC in region, so that touch-control sensor is more beautiful.
In the utility model embodiment, in order to guarantee aforesaid substrate 1 with certain structural strength and have to lightGood permeability, aforesaid substrate 1 are preferably glass substrate 1 in the utility model embodiment.In the utility model embodimentIn, in order to protect above-mentioned second conductive mesh layer 4, the touch-control sensor can also include being located at second conductive mesh layer4 backwards to 1 one side surface of substrate second insulating layer 6.
Similar with above-mentioned first insulating layer 3, above-mentioned second insulating layer 6 is located at the second conductive mesh layer 4 backwards to substrate 1 oneSide surface, specific second insulating layer 6 are located at above-mentioned 4th transparent protective layer 43 backwards to 1 one side surface of substrate.Second insulationAlso commonly referred to as OC (Over Coat) layer of layer 6, primarily serves the effect of insulation and protection, primarily serves protection above-mentioned secondThe effect of conductive mesh layer 4.It should be noted that the touch-control sensor as provided by the utility model embodiment usually requiresDisplay is cooperated to use, touch-control sensor usually requires to keep to the higher transmitance of light, and above-mentioned second insulating layer 6 is usually saturatingBright insulating layer.Specific material in relation to second insulating layer 6 can refer to the prior art, not do in the utility model embodimentIt is specific to limit.
In the utility model embodiment, the touch-control sensor can also include being located at the second insulating layer 6 backwardsThe cover board 7 of 1 one side surface of substrate.Above-mentioned cover board 7 is usually located at the outermost layer of entire touch-control sensor, i.e., the cover board 7 is carried on the backUsually directly contacted with external environment to 1 one side surface of substrate, with protect the first conductive mesh layer 2 in entire touch-control sensor,The structures such as the second conductive mesh layer 4 are not easily susceptible to damage.Under normal conditions, the structural strength that above-mentioned cover board 7 needs to have certain,With cover sheet 7 towards each layer structure of 1 side of substrate.Specifically, above-mentioned cover board 7 can be excellent in the utility model embodimentIt is selected as tempered glass cover plate 7.Since 7 surface of tempered glass cover plate is previously provided with compression, so that tempered glass cover plate 7 hasBiggish intensity, can be with effective protection cover board 7 towards each layer structure of 1 side of substrate.It should be noted that due to touching at this stageControl inductor usually requires cooperation display screen and is used, and above-mentioned cover board 7 usually requires to be transparent cover plate 7.
A kind of touch-control sensor provided by the utility model embodiment, by being set in the non-visible area domain on 1 surface of substrateInk layer 5 is set, the components such as the lead that touch-control sensor non-visible area domain is set, FPC can be covered, so that touch-control sensor is moreThe beauty added；Cover board 7 is set backwards to 1 one side surface of substrate by second insulating layer 6 and in second insulating layer 6, it can be effectiveThe structures such as the first conductive mesh layer 2, the second conductive mesh layer 4 are protected to be not easily susceptible to damage.
The utility model additionally provides a kind of touch-control display panel, including as any of the above-described utility model embodiment providesTouch-control sensor and display screen.Wherein, touch-control sensor is usually the light-emitting area with display screen, i.e., is issued by display screenLight can pass through above-mentioned touch-control sensor.Remaining part please refers to the prior art, is no longer repeated herein.
It is lower that the touch-control sensor as provided by above-mentioned utility model embodiment can make conductive grid lines haveVisuality, in touch-control display panel provided by corresponding the utility model embodiment conductive grid lines have it is lower canDepending on property, so that naked eyes can not identify conductive grid lines easily, to promote user experience.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with it is otherThe difference of embodiment, same or similar part may refer to each other between each embodiment.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to byOne entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operationBetween there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaningCovering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes thatA little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article orThe intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arrangedExcept there is also other identical elements in the process, method, article or apparatus that includes the element.
Detailed Jie has been carried out to a kind of touch-control sensor provided by the utility model and a kind of touch-control display panel aboveIt continues.Specific case used herein is expounded the principles of the present invention and embodiment, and above embodiments are saidThe bright method and its core concept for being merely used to help understand the utility model.It should be pointed out that for the common of the artFor technical staff, without departing from the principle of this utility model, can also to the utility model carry out it is several improvement andModification, modifications and modifications also fall within the protection scope of the claims of the utility model.