The method for making of multi-point electric resistance formula touch-screen and multi-point electric resistance formula touch-screen
Technical field
The present invention relates to the multipoint mode touch-screen, relate in particular to method for making that can realize piezoelectricity multi-point electric resistance formula touch-screen multi-point touch, that touch sensitivity is higher and the multi-point electric resistance formula touch-screen that makes.
Background technology
At present, touch-screen is as a kind of input equipment, allow the user directly to touch or hand-written mode input information by point on the display device surface that is added with touch-screen, more friendly than input equipments such as mouse-keyboards, convenient, therefore be used in more and more widely on the various portable sets, as mobile phone, PDA etc.
Existing touch screen technology is of a great variety, and according to the difference of use contactant type, affirmation contact position mode, touch screen technology can be divided into resistive touch screen, capacitive touch screen, infrared-type touch-screen, surface acoustic wave type touch-screen etc. again.
Along with the decline of the maturation of multi-point electric resistance formula control IC technology, cost and with respect to some distinctive advantages of other several technology, fine, not fragile as anti-tampering property, water proofing property, can use for a long time etc., make the multipoint mode touch-screen application more and more widely.
Multi-point electric resistance formula touch-screen of the prior art generally adopts silver slurry cabling, its structure is referring to Fig. 1, at the silver-plated slurry 6 of the ITO of glass substrate 1 layer, the multi-point electric resistance formula touch-screen that this technology is made, the minimum feature of its silver slurry cabling only can be controlled at 180 μ, referring to Fig. 2, common silver slurry cabling space is 6.56mm, this structure can cause the problem of dysfunction, and because the defective of silver slurry cabling itself, cause the having relatively high expectations of glass substrate, the selectable range of material is little, causes the high problem of cost.
Summary of the invention
The object of the invention is, a kind of method for making of multi-point electric resistance formula touch-screen is provided, and can reduce the space cabling, reduces dysfunction.Based on this, the present invention also provides a kind of multi-point electric resistance formula touch-screen.
For solving the problems of the technologies described above, the method for making of a kind of multipoint mode electric resistance touch screen of the present invention comprises the steps:
1) plating molybdenum or plate molybdenum, aluminium, molybdenum successively on the ITO of glass substrate layer;
2) carry out the molybdenum cabling;
3) after the molybdenum cabling is finished, carry out the ITO cabling again.
Preferably, in the step 1), described plating molybdenum using plasma sputter mode is deposited on film forming on the glass substrate with target atom.
Preferably, controlling molybdenum cabling and ITO cabling by exposure behind the plating molybdenum on the glass substrate.
Preferably, step 2) in, described molybdenum cabling is realized by molybdenum gluing, molybdenum exposure, molybdenum development, molybdenum etching, molybdenum demoulding.
Preferably, described plating molybdenum comprises: clean glass substrate earlier, then carry out sputter coating, figure etching successively.
Preferably, in the step 3), described ITO cabling is realized by gluing, exposure, development, harsh, demoulding.
Preferably, wide 5 μ~20 μ that are controlled at of described plating molybdenum wire.
Preferably, wide 10 μ that are controlled at of described plating molybdenum wire.
A kind of multi-point electric resistance formula touch-screen of the present invention is made by aforementioned arbitrary method for making.
Adopting the minimum feature of common silver slurry cabling only can be controlled at 180 μ with multi-point electric resistance formula touch-screen in the prior art compares, the present invention is owing to adopting plating molybdenum or plating molybdenum, aluminium, molybdenum to replace common silver of the prior art to starch cabling, and the live width of molybdenum cabling minimum can be controlled at 5 μ, so the present invention adopts the design of plating molybdenum to greatly reduce dysfunction.
Further, reduced cabling space greatly by exposure technology.
The method for making of multi-point electric resistance formula touch-screen of the present invention and the multi-point electric resistance formula touch-screen that makes can remedy the vacancy on the market, on function, can accomplish the effect the same fully with capacitive touch screen, on interference free performance, be better than capacitive touch screen again, on price, be better than simultaneously capacitive touch screen again, so price is low, performance is good, very big advantage is arranged in the market.
Description of drawings
Fig. 1 is the structural representation that common silver slurry is walked the multi-point electric resistance formula touch-screen that Wiring technology obtains in the prior art;
Fig. 2 is the silver slurry trace width synoptic diagram that common silver slurry is walked Wiring technology in the prior art;
Fig. 3 is the plating molybdenum process chart in the method for making of multi-point electric resistance formula touch-screen of the present invention;
Fig. 4 is a plating molybdenum schematic diagram of the present invention;
The multi-point electric resistance formula touch-screen synoptic diagram that the method for making of Fig. 5 multi-point electric resistance formula of the present invention touch-screen obtains;
Fig. 6 is a molybdenum trace width synoptic diagram of the present invention.
Among the figure, relevant Reference numeral is as follows:
The 1-glass substrate; The 2-ITO layer; The 3-molybdenum;
The 4-film; Two-sided sticking in the 5-box; 6-silver slurry.
Embodiment
Of the present invention being contemplated that adopts plating molybdenum or plating molybdenum, aluminium, molybdenum to replace common silver slurry cabling of the prior art.For making goal of the invention of the present invention, technical scheme, effect clearer, below in conjunction with accompanying drawing, the present invention is described in detail by specific embodiment.
Embodiment one
The method for making of the multi-point electric resistance formula touch-screen in the present embodiment comprises the steps:
1) plating molybdenum:
Plating one deck molybdenum 3 on the ITO of glass substrate 1 layer 2; The plating molybdenum technological process of this step is referring to Fig. 3, and plating molybdenum principle by the plasma sputtering mode, is deposited on base plate glass on film forming with target atom referring to Fig. 4.
2) molybdenum cabling:
Realize the molybdenum cabling by molybdenum gluing, molybdenum exposure, molybdenum development, molybdenum etching, molybdenum demoulding;
3) ITO cabling:
After the molybdenum cabling is finished, realize the ITO cabling by gluing, exposure, development, harsh, demoulding again, at last with the glass substrate with ITO layer 1 of touch-screen and the film 4 by two-sided sticking 5 coupling together in the box, finish the making of whole touch screen.The multi-point electric resistance formula touch-screen that the method for making of multi-point electric resistance formula touch-screen of the present invention obtains is referring to Fig. 5;
In the present embodiment, behind glass substrate plating molybdenum, control the live width of molybdenum cabling and ITO cabling by exposure: the plating molybdenum wire is wide to be controlled in the scope of 5 μ~20 μ, as being 10 μ, referring to Fig. 6, the molybdenum cabling space is 2.92mm, because the control of the precision of exposure is high, so the molybdenum trace width is easy to control, function corresponding is bad very low.
Embodiment two
The method for making of the multi-point electric resistance formula touch-screen in the present embodiment comprises the steps:
1) plating molybdenum, aluminium, molybdenum:
On the ITO of glass substrate 1 layer 2, plate molybdenum, aluminium, molybdenum successively; The plating molybdenum principle of this step by the plasma sputtering mode, is deposited on base plate glass on film forming with target atom referring to Fig. 5.
2) molybdenum cabling:
Realize the molybdenum cabling by molybdenum gluing, molybdenum exposure, molybdenum development, molybdenum etching, molybdenum demoulding;
3) ITO cabling:
After the molybdenum cabling is finished, realize the ITO cabling by gluing, exposure, development, harsh, demoulding again, at last with the glass substrate with ITO layer 1 of touch-screen and the film 4 by two-sided sticking 5 coupling together in the box, finish the making of whole touch screen.
Be that with the difference of embodiment one present embodiment adopts plating molybdenum, aluminium, molybdenum layer to replace the plating molybdenum layer of embodiment two, all the other are all consistent with embodiment one, repeat no more herein.
Because the resistance of aluminium is less, so the resistance of the molybdenum layer among the resistance of the molybdenum in the present embodiment, aluminium, molybdenum layer and the embodiment one is equally little, thereby the effect of multi-point electric resistance formula touch-screen that finally makes and embodiment one is very nearly the same.
Only be preferred implementation of the present invention below, should be pointed out that above-mentioned preferred implementation should not be considered as limitation of the present invention, protection scope of the present invention should be as the criterion with the determined scope of claim.For those skilled in the art, without departing from the spirit and scope of the present invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.