CN203149519U - Touch device - Google Patents

Touch device Download PDF

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Publication number
CN203149519U
CN203149519U CN 201320074160 CN201320074160U CN203149519U CN 203149519 U CN203149519 U CN 203149519U CN 201320074160 CN201320074160 CN 201320074160 CN 201320074160 U CN201320074160 U CN 201320074160U CN 203149519 U CN203149519 U CN 203149519U
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CN
China
Prior art keywords
area
shielding layer
control device
layer
contactor control
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Expired - Fee Related
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CN 201320074160
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Chinese (zh)
Inventor
李裕文
阮克铭
纪贺勋
林奉铭
许贤斌
唐传代
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TPK Touch Solutions Xiamen Inc
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TPK Touch Solutions Xiamen Inc
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Priority to CN 201320074160 priority Critical patent/CN203149519U/en
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Publication of CN203149519U publication Critical patent/CN203149519U/en
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Abstract

A touch device comprises a cover plate, a first shielding layer, a signal lead layer and a second shielding layer. The cover plate is provided with a visible area and a shielding area, wherein the shielding area is located on the lateral side of the visible area and comprises a first zone, a second zone and a third zone. The first shielding layer is arranged on the surface of the cover plate, located in the first zone and the second zone and provided with a flat surface. The signal lead layer is located in the first zone and arranged on the flat surface of the first shielding layer. The second shielding layer is at least located in the third zone close to the edge of the cover plate, and the viscosity of the second shielding layer is larger than that of the first shielding layer. The touch device can solve the problem that the surface of the shielding layer formed at the edge of the cover plate becomes rugged when the shielding layer is made of black photoresists and other low-viscosity materials.

Description

Contactor control device
Technical field
The utility model is relevant for touch technology, and particularly relevant for a kind of contactor control device.
Background technology
In recent years, contactor control device has been widely applied in various electronic products, for example mobile phone, personal digital assistant (PDA) or palm PC etc.Along with demands of applications, developed the contactor control device that a kind of slimming design in recent years, because this kind slimming contactor control device has frivolous advantage, be subjected to user's favor gradually.
Please refer to the 1st figure; it is the diagrammatic cross-section of a slimming contactor control device; this slimming contactor control device is made up of with touch control component 30 protection enclosing cover 10, shielding layer 20; wherein; shielding layer 20 all directly is formed at a side of protecting enclosing cover 10 with touch control component 30, and the opposite side of protection enclosing cover 10 then touches to import message or controls electronic product for the user.
In the above-mentioned slimming contactor control device, shielding layer 20 is that the light screening material by low-viscosity (the about 3-50cps of viscosity) is formed, and can find out that by the 1st figure the surface of shielding layer 20 is the out-of-flatness surfaces that are made of a flat surface 202 and a protrusion surface 204.Why shielding layer 20 has the generation of irregular surface is because the low-viscosity masking material can make the shielding layer 20 of follow-up curing molding also can not have an even curface because capillary physical phenomenon forms irregular protrusion surface at the edge near protection enclosing cover 10 when being coated with at the beginning.
And the out-of-flatness of shielding layer 20 surface can influence the formation quality of follow-up touch control component 30, and then reduces the product yield of slimming contactor control device.
The utility model content
According to embodiment of the present utility model; in contactor control device, form first shielding layer and full-bodied second shielding layer of tool of tool low-viscosity respectively; allow the high viscosity characteristic of second shielding layer still can keep even curface in the place near the cover sheet edge; follow-up to forming the influence of touch control component to reduce, and then improve the product yield of contactor control device.
The utility model one embodiment provide a kind of contactor control device, comprise: a cover plate, have a visible area and and be positioned at the shielded area of this visible area side, the zone that the direction of this shielded area from this visible area toward this side edge thereof divided in regular turn comprises a first area, a second area and one the 3rd zone; One first shielding layer is arranged at the surface of this cover plate and is positioned at this first area and this second area, and wherein this first shielding layer has a flat surface; One signal lead layer is positioned at this first area and is arranged on this flat surface of this first shielding layer; And one second shielding layer, be positioned at the 3rd zone near this side edge thereof at least, wherein, the viscosity of this second shielding layer is greater than the viscosity of this first shielding layer.
The utility model is by the design of contracting in first shielding layer, and in the time of can avoiding first shielding layer to adopt the lower material of viscosity such as black photoresist, first shielding layer surface that is formed at side edge thereof produces irregular problem.
For above-mentioned and other purposes of the present utility model, feature and advantage can be become apparent, cited below particularlyly go out preferred embodiment, and cooperate appended graphicly, be described in detail below:
Description of drawings
Fig. 1 is shown as the diagrammatic cross-section of a traditional slimming contactor control device.
Fig. 2 a is presented at the sectional view of contactor control device 100 among the utility model one embodiment.
Fig. 2 b then show Fig. 2 a cover plate 110 on look synoptic diagram.
Fig. 3 shows the top view of electrode portion among the utility model one embodiment.
Fig. 4 a to Fig. 4 g shows first shielding layer 120 possible pattern in second area II.
Fig. 5 is presented at the sectional view of the contactor control device among another embodiment of the utility model.
Fig. 6 is presented at the sectional view of the contactor control device among the another embodiment of the utility model.
Fig. 7 is presented at the method flow diagram of the contactor control device among the utility model one embodiment.
Fig. 8 to Figure 12 shows each stage sectional view or the top view that forms contactor control device according to the method for Fig. 7.
[main element symbol description]
The V-visible area
The M-shielded area
The I-first area
The II-second area
III-the 3rd zone
100,400,500-contactor control device
110,510-cover plate
130,530-sensed layer
131,531-electrode portion
131X, 531X-first electrode
131Y-second electrode
131Z, 531Z-connecting portion
133,533-cross-over connection portion
140,540-conductive part
150,550-signal lead layer
160,560-protective seam
170,570-second shielding layer
602,604,606,608-step
Embodiment
Below enumerate several different embodiment according to different characteristic of the present utility model.Specific element and arrangement have been simplification in the utility model, but the utility model is not limited with these embodiment.For example, the description that forms first element on second element can comprise the embodiment that first element and second element directly contact, and also comprises having the embodiment that extra element is formed between first element and second element, win element and second element are not directly contacted.In addition, for simplicity's sake, the utility model is component symbol and/or the letter representation to repeat in different examples, does not have specific relation but do not represent between described each embodiment and/or structure.
With reference to 2a and 2b figure, wherein 2a figure is presented at the sectional view of contactor control device 100 among the utility model one embodiment, 2b scheme then to show Fig. 2 a cover plate 110 on look synoptic diagram.Contactor control device 100 comprises cover plate 110, first shielding layer 120, signal lead layer 150 and second shielding layer 170, wherein, cover plate 110 has visible area V and is positioned at the shielded area M of visible area V side, and the zone that the direction of shielded area M from visible area V toward cover plate 110 edges divided in regular turn comprises first area I, second area II and the 3rd regional III; 120 of first shielding layers are arranged at the surface of cover plate 110 and are positioned at first area I and second area II, and wherein first shielding layer 120 has a flat surface; Signal lead layer 150 is positioned at first area I and is arranged on the flat surface of first shielding layer 120; And second shielding layer 170, be positioned at the 3rd regional III near cover plate 110 edges at least, wherein, the viscosity of second shielding layer 170 is greater than the viscosity of first shielding layer 120.
Shown in 2a figure, contactor control device 100 more comprises the sensed layer 130 that electrically connects signal lead layer 150, and sensed layer 130 is the visible area V scopes that are arranged on the surface of cover plate 110 and are positioned at cover plate 110.
In the present embodiment, contactor control device 100 more comprises conductive part 140, and conductive part 140 is in order to electrically connect sensed layer 130 and signal lead layer 150.In other embodiments, sensed layer 130 also can be directly and signal lead layer 150 electrically connect, namely contactor control device 100 can not comprise conductive part 140.
In the present embodiment; contactor control device 100 more comprises protective seam 160; wherein the one side of protective seam 160 is arranged on the surface of cover plate 110 at the 3rd regional III; be arranged at second area II on the flat surface of first shielding layer 120; be arranged on the signal lead layer 150 at first area I, the another side of protective seam 160 then carries second shielding layer 170.
In one embodiment, first shielding layer 120 is identical with the color of second shielding layer 170.In another embodiment, first shielding layer 120 is different with the color of second shielding layer 170.
Refer again to 2a figure and 2b figure, below will illustrate in greater detail the technical solution of the utility model.
In the present embodiment, shielded area M further is the periphery round visible area V, and the first area I of shielded area M is around visible area V, and second area II is around first area I, and the 3rd regional III is around second area II.Be understood that first area I, second area II, the 3rd regional III can be not limited to the shape shown in the 2b figure.
In one embodiment, the width of second area II is between 1.5mm to 3.5mm, and the width of the 3rd regional III is between 0.25mm to 0.5mm.Yet, this area tool know usually width that the knowledgeable should understand the first area I of shielded area M, second area II, the 3rd regional III also visual device need be adjusted into other width, be not as limit.
Aforementionedly be arranged at the surface of cover plate 110 and first shielding layer 120 that is positioned at first area I and second area II is to have a flat surface.Be noted that, the described flat surface of the utility model, be to be different from that the shielding layer edge has tangible out-of-flatness surface (as obvious projection) in the prior art, that is the described flat surface of the utility model, be not limited to the ideal situation of the same thickness of along continuous straight runs tool that illustrates as 2a figure, the flat surface of first shielding layer 120 also can comprise situations such as gradient thickness, for example first shielding layer 120 of conductive part 140 climbing positions can be level and smooth arc surfaced, it will be conducive to conductive part 140 in the climbing of this position, avoid conductive part 140 may have the problem of climbing fracture.
In the present embodiment, first shielding layer 120 that is positioned at second area II has the gradual change pattern.4a to 4g figure shows first shielding layer 120 possible pattern in second area II.Shown in 4a to 4g figure, the pattern of first gradual change of shielding layer 120 in second area II can have various shape and pattern.In certain embodiments, the pattern of gradual change comprises a plurality of identical or different figures, symbol, literal, numeral or aforementioned combination.In another embodiment, the pattern of gradual change comprises the hole that a plurality of arrays are arranged.In another embodiment, the pattern of gradual change comprises a plurality of triangles, circle, rectangle or aforementioned combination.
In the present embodiment, shown in 2a figure, sensed layer 130 comprises an electrode portion 131, plural insulation division 132, plural cross-over connection portion 133.More specifically, please also refer to the 3rd figure, the 3rd figure has illustrated a kind of top view that can be applicable to electrode of the present utility model portion.Electrode portion 131 comprises a plurality of first electrode 131X that are arranged in row, a plurality of second electrode 131Y that are arranged in rows, and the plural connecting portion 131Z that connects the second adjacent electrode 131Y.Plural number cross-over connection portion 133 can be in order to be connected same listing and the first adjacent electrode 131X.Plural number insulation division 132 can be arranged between connecting portion 131Z and the cross-over connection portion 133, in order to connecting portion 131Z and the cross-over connection portion 133 of being electrically insulated.
It should be noted that, although the 1st figure is different with the quantity of the elements such as the first electrode 131X of the 3rd figure, but be understood that, the 1st figure and the 3rd figure only are example, not in order to limiting quantity and the sample attitude of elements such as the actual first electrode 131X, and the shape of the first electrode 131X and the second electrode 131Y also is not limited to rhombus in the diagram or triangular shaped.Other it should be noted that the sensed layer 130 shown in the 2a figure is the usefulness for illustrating only, also can have the sensed layer of other pattern and form in other embodiment of the utility model, and category of the present utility model is not as limit.
In the present embodiment, contactor control device 100 also comprises in order to electrically connect the conductive part 140 of signal lead layer 150 and the first electrode 131X.Wherein, conductive part 140 can form with same material in same fabrication steps with cross-over connection portion 133, and namely both can integratedly form, but both also can adopt different materials.In another embodiment, signal lead layer 150 can directly electrically connect the first electrode 131X.
Signal lead layer 150 is positioned at first area I and is arranged on the flat surface of first shielding layer 120, and electrically connects with sensed layer 130, by signal lead layer 150, the electrical variation of first electrode 131X induction can be sent to signal processor (not illustrating).In addition, the second electrode 131Y that is arranged in rows also can transmit the change in electric of its induction by another signal lead layer (not drawing).It should be noted that signal lead layer 150 and conductive part 140 can only be formed at a side of first shielding layer 120, the i.e. mode of monolateral lead-in wire.Shown in the 1st figure is bilateral lead-in wire mode, connect same axial signal lead layer 150 and can be connected to the signal processor (not shown) by the form of parallel connection, when the contactor control device size is big, be conducive to alleviate the problem of signal attenuation by the mode of bilateral lead-in wire.
In one embodiment, second shielding layer 170 can only be positioned at the 3rd regional III near cover plate 110 edges.
In one embodiment, the scope that arranges of second shielding layer 170 can more comprise second area II, and namely second shielding layer 170 is positioned at second area II and the 3rd regional III.
In a preferred embodiment, shown in 2a figure, the scope that arranges of second shielding layer 170 more comprises second area II and first area I, namely second shielding layer 170 can be extended to second area II and the 3rd regional III by the first area I of shielded area M, makes the scope of second shielding layer 170 contain whole shielded area M.
Second shielding layer 170 is positioned on the signal lead layer 150 and is positioned at shielded area M, can make the shaded effect of shielded area M better.In addition, because first shielding layer 120 only is arranged at the first area I of shielded area M and second area II and does not extend into the 3rd regional III, therefore can avoid being positioned at first shielding layer 120 at the edge of cover plate 110, the out-of-flatness surface that occurs because of physical factor influences the yield of contactor control device.
Because first shielding layer 120 and second shielding layer 170 do not form simultaneously and both materials are selected there are differences, so when both adopt identical or close color, inevitably, still perceive easily and have aberration between the two, the utility model makes the part (that is second area II of cover plate 110) of having a common boundary between shielding layer 120 and second shielding layer 170 of winning have good zone of transition by the gradual change pattern of first shielding layer 120.The relatively lofty sense that exists of the direct transition of color, the gradual change pattern makes the transition between the similar color have stereovision, can make naked eyes be not easy to perceive aberration between first shielding layer 120, second shielding layer 170 to the greatest extent, can reach preferable screening effect simultaneously.
In addition, when first shielding layer 120 and 170 employings of second shielding layer color inequality, will make the shielded area M of contactor control device 100 have composite coloured and pattern, and then can satisfy the diversified demand of contactor control device 100 shielded area M design and colors.
Below, will in detail other characteristic of contactor control device 100 each element be described in detail.
Cover plate 110 can adopt transparent insulation material, as plastic cement materials such as glass material or P ET.Cover plate 110 can be hard substrate or bendable substrate.Cover plate 110 can be flat shape, curve form, or aforementioned combination, and more specifically, cover plate 110 for example is 2.5D glass.
First shielding layer, 120 owners will be by coloured photoresist of resin, pigment, emulsion and solvent composition, and its viscosity can be less than 150cps, for example between 3cps to 50cps, perhaps between 60cps to 100cps.In a preferred embodiment, first shielding layer 120 adopts the black photoresist, and its viscosity can be between 3cps to 50cps.
Electrode portion 131 adopts transparent conductive materials, for example for how Mi Yinsi (SilverNano-Wire, SNW), nano carbon tubes (Carbon nanotube, CNT), Graphene (Graphene) and oxidized metal (ITO, AZO ...) etc.In one embodiment, electrode portion 131 is indium tin oxide (ITO) layer that high temperature forms, and its formation temperature can be between 300 ℃ to 350 ℃, and the light transmission of indium tin oxide (ITO) layer that forms by high temperature is better.
Cross-over connection portion 133 can be metal material, indium tin oxide (ITO) transparent conductive materials such as silver, aluminium, or aforementioned combination.And preferably, the transparent conductive material that conductive part 140 and cross-over connection portion 133 are identical, indium tin oxide transparent conductive materials such as (ITO) for example is in the time of so can avoiding signal lead layer 150 to adopt material such as metals, directly electrically connect sensed layer 130, cause the visual problem of signal lead layer 150.
Insulation division 132 adopts insulating material, for example is photoresistance, and it can utilize exposure and developing manufacture process to form.In one embodiment, insulation division 132 is the insulating material of organic or inorganic, for example is materials such as pi (polyimide), epoxy resin.
The material of signal lead layer 150 for example is metal materials such as silver, aluminium, indium tin oxide transparent conductive materials such as (ITO), or aforementioned combination.Preferably, signal lead layer 150 adopts metal material, and metal material has preferable electric conductivity.
In one embodiment, when electrode portion 131 employing indium tin oxide (ITO) materials, its formation temperature can be between 300 ℃ to 350 ℃; The 132A of cross-over connection portion also can adopt indium tin oxide (ITO) material, and its formation temperature can be between 20 ℃ to 30 ℃.The indium tin oxide (ITO) of the indium tin oxide (ITO) that high temperature (can between 300 ℃ to 350 ℃) forms and low temperature (can between 20 ℃ to 30 ℃) formation, when adopting lithography technology to form patterned shape, used etching solution difference, that is when forming cross-over connection portion 133, can't destroy established electrode portion 131.
Protective seam 160 can adopt transparent insulation material, for example is photoresistance or silicon dioxide.In one embodiment, when protective seam 160 adopted transparent photoresist, its thickness can be 1500nm to 2000nm.In another embodiment, when protective seam 160 adopted earth silicon material, its thickness can be 10nm to 30nm.The material of protective seam 160 and thickness can adjust according to the different product demand, are not limited to above material and thickness.
Second shielding layer 170 can have different viscosity with first shielding layer 120, and preferably, the higher material of second shielding layer, 170 employing viscosity (for example can be between 3500cps-12000cps, more specifically, can be 4000cps, 6000cps or 7500cps), in order to control the surface smoothness of second shielding layer 170 preferably.Second shielding layer 170 can be colored ink material (for example black ink material), and it can be made up of pigment, link stuff and auxiliary agent, and viscosity can reach cps up to ten thousand, and it can form by mode of printing.Preferably, first shielding layer 120 adopts identical or close color with second shielding layer 170.
It should be noted that, owing to may exist high-temperature step (to adopt the indium tin oxide of high temperature formation as electrode portion 131 in contactor control device 100 forming processes, and may there be steps such as baking in forming process), and sensed layer 130, signal lead layer 150 assembly such as grade adopt the technology of lithography to form usually, therefore first shielding layer 120 adopts the photoresist that can pass through the lithography PROCESS FOR TREATMENT, can guarantee before forming second shielding layer 170, contactor control device 100 can (comprise temperature in identical or close environmental baseline, humidity, vacuum tightness etc.) carry out under, and then can raise the efficiency.
The 5th figure is presented at the sectional view of the contactor control device among another embodiment of the utility model.The difference of contactor control device is shown in the 5th figure and the 1st figure, and in the 5th figure, second shielding layer 170 is directly to be formed on the signal lead layer 150, then forms protective seam 160 again.More specifically, in the present embodiment, second shielding layer 170 is arranged on the surface of cover plate 110 at the 3rd regional III; Second shielding layer 170 is arranged on the flat surface of first shielding layer 120 at second area II; Second shielding layer 170 is arranged on the signal lead layer 150 at first area I.Other characteristic of present embodiment contactor control device 400 can be identical with last embodiment, repeats no more herein.
The 6th figure is presented at the sectional view of the contactor control device among the another embodiment of the utility model.The difference of contactor control device 100 is the structure of sensed layer 530 shown in the 6th figure and the 1st figure.In the 6th figure, in visible area V, form cross-over connection portion 533 and insulation division 532 earlier, then form electrode portion 531 and conductive part 540 again.Please answer with reference to the 1st figure and the 3rd figure, similar to the 1st figure electrode portion 131, electrode portion 531 comprises a plurality of first electrode 531X that are arranged in row, a plurality of second electrodes (Fig. 6 does not illustrate) that are arranged in rows, and the plural connecting portion 531Z that connects the second adjacent electrode.Plural number cross-over connection portion 533, adjacent at the same first electrode 531X that lists in order to connect.Plural number insulation division 532 is arranged between connecting portion 531Z and the cross-over connection portion 533, in order to connecting portion 531Z and the cross-over connection portion 533 of being electrically insulated.
Cross-over connection portion 533 can be metal materials such as silver, aluminium, indium tin oxide transparent conductive materials such as (ITO), or aforementioned combination.In one embodiment, indium tin oxide (ITO) layer that cross-over connection portion 533 forms for high temperature, its formation temperature can be between 300 ℃ to 350 ℃.
Sensed layer 530 adopts transparent conductive materials, for example for how Mi Yinsi (SilverNano-Wire, SNW), nano carbon tubes (Carbon nanotube, CNT), Graphene (Graphene) and oxidized metal (ITO, AZO ...) etc.
In one embodiment, when cross-over connection portion 533 adopts indium tin oxide (ITO) material that high temperature (can between 300 ℃ to 350 ℃) form, indium tin oxide (ITO) material that electrode portion 531 can adopt low temperature (can between 20 ℃ to 30 ℃) to form.
Similar in appearance to the 1st figure, in this embodiment, signal lead layer 550 is to produce electric connection by conductive part 540 and the first electrode 531X, and preferably, conductive part 540 adopts identical materials (as the indium tin oxide material) with electrode portion 531, and both form simultaneously.
Signal lead layer 550 is provided with protective seam 560, and protective seam 560 is provided with second shielding layer 570, and second shielding layer 570 is arranged in shielded area M.Other characteristic of present embodiment contactor control device 500 can be identical with the embodiment that Fig. 1 illustrates, and repeats no more herein.
In addition, be understood that in another embodiment, contactor control device can have the sensed layer structure shown in similar the 6th figure, however its second shielding layer be formed directly on the signal lead layer, then form protective seam (structure of similar the 5th figure) again.
The 7th figure shows the method flow diagram that forms the utility model contactor control device.The the 8th to 12 figure then shows each stage sectional view or the top view that forms contactor control device according to the method for the 7th figure.With reference to the 7th figure, in step 602, one cover plate is provided, and this cover plate has the shielded area that a visible area and is positioned at this visible area side, and the zone that the direction of this shielded area from this visible area toward this side edge thereof divided in regular turn comprises a first area, a second area and one the 3rd zone; In step 604, form one first shielding layer in the surface of this cover plate and be positioned at this first area and this second area, wherein this first shielding layer has a flat surface; In step 606, form a signal lead layer in this first area and be arranged on this flat surface of this first shielding layer; And in step 608, form one second shielding layer in close at least the 3rd zone of this side edge thereof, wherein, the viscosity of this second shielding layer is greater than the viscosity of this first shielding layer.
In the formation method of contactor control device of the present utility model, comprise more forming a sensed layer that electrically connects this signal lead layer that this sensed layer is this visible area scope that is formed on the surface of this cover plate and is positioned at this cover plate.Describe in detail below with reference to the 8th figure to the 12 figure.
With reference to the 7th, 8 figure, in step 602, cover plate 110 is provided, and cover plate 110 has visible area V and is positioned at the shielded area M of visible area V side, and the zone that the direction of shielded area M from visible area toward cover plate 110 edges divided in regular turn comprises first area I, second area II and the 3rd regional III.Please answer the figure with reference to 2b, in one embodiment, shielded area M further is the periphery round visible area V, and the first area I of shielded area M is around visible area I, and second area II is around first area I, and the 3rd regional III is around second area II.
Cover plate 110 can adopt transparent insulation material, as plastic cement materials such as glass material or PET.Cover plate 110 can be hard substrate maybe can disturb the formula substrate.Cover plate 110 can be flat shape, curve form, or aforementioned combination, and more specifically, in one embodiment, cover plate 110 for example is 2.5D glass or 3D glass.
The width of second area II can be between 1.5mm to 3.5mm, and the width of the 3rd regional III can be between 0.25mm to 0.5mm.Yet, this area tool know usually width that the knowledgeable should understand the first area I of shielded area 132, second area II, the 3rd regional III also visual device need be adjusted into other width, be not as limit.In addition, first area I, second area II, the 3rd regional III also are not limited to shape shown in Figure 2.
With reference to the 3rd, 7,9 figure, between step 602 and step 604, cover plate in visible area V 110 forms electrode portion 131 earlier, wherein, electrode portion 131 comprises a plurality of first electrode 131X that are arranged in row, a plurality of second electrode 131Y that are arranged in rows, and the plural connecting portion 131Z that connects the second adjacent electrode 131Y.Electrode portion 131 adopts transparent conductive materials, for example for how Mi Yinsi (Silver Nano-Wire, SNW), nano carbon tubes (Carbonnanotube, CNT), Graphene (Graphene) and oxidized metal (ITO, AZO ...) etc.The formation method of electrode portion 131 for example is comprehensive deposit transparent conductive material layer, and then the little shadow of recycling, etch process are with the transparent conductive material layer patterning, to form electrode portion 131.The method of above-mentioned deposition for example is sputter (sputtering), or other known deposition processs.In one embodiment, electrode portion 131 adopts indium tin oxide (ITO) material, and its formation temperature can be between 300 ℃ to 350 ℃.
Then, with reference to the 10th figure, form first shielding layer 120 in step 604 in the first area of shielded area M I and second area II, wherein, first shielding layer 120 that is arranged in second area II has gradual change pattern (figure does not show, please refer to 4a to 4g and schemes).In certain embodiments, the pattern of gradual change comprises a plurality of identical or different figures, symbol, literal, numeral or aforementioned combination.In another embodiment, the pattern of gradual change comprises the hole that a plurality of arrays are arranged.In another embodiment, the pattern of gradual change comprises a plurality of triangles, circle, rectangle or aforementioned combination.First shielding layer, 120 owners will be by coloured photoresist of resin, pigment, emulsion and solvent composition, and its viscosity can be less than 150cps, for example between 3cps to 50cps, perhaps between 60cps in 100cps.In a preferred embodiment, first shielding layer 120 adopts the black photoresist, and its viscosity can be between 3 to 50cps.The method of patterning that forms the first shielding layer gradual change for example is little shadow, etching, perhaps can be the patterning method of any known or future development.
Continue with reference to the 11st figure, between step 604 and step 606, above each connecting portion 131Z of electrode portion 131, form insulation division 132.Insulation division 132 can adopt insulating material, for example is photoresistance, and it can utilize little shadow or printing process with this insulating material patterning, forms insulation division 132.In one embodiment, insulation division 132 is the insulating material of organic or inorganic, for example is materials such as pi (polyimide), epoxy resin.
Then, form cross-over connection portion 133 at insulation division 132.In addition, can form the conductive part 140 that electrically connects with sensed layer 130 at first shielding layer 120 simultaneously.Cross-over connection portion 133 can be metal materials such as silver, aluminium, indium tin oxide transparent conductive materials such as (ITO), or aforementioned combination.And preferably, cross-over connection portion 133 adopts indium tin oxide (ITO) transparent conductive materials of etc.ing with conductive part 140, in the time of so can making materials such as avoiding signal lead layer 150 employing metal, directly electrically connects electrode portion 131, causes the visual problem of signal lead layer 150.Form cross-over connection portion 133 and conductive part 140 and can adopt little shadow and etch process or printing process.
In one embodiment, when electrode portion 131 adopted indium tin oxide (ITO) material, its formation temperature can be between 300 ℃ to 350 ℃; The 132A of cross-over connection portion also can adopt indium tin oxide (ITO) material, and its formation temperature is between 20 ℃ to 30 ℃, but not as limit.The indium tin oxide (ITO) that the indium tin oxide (ITO) that high temperature forms and low temperature form, when adopting lithography technology to form patterned shape, used etching solution difference, that is when forming cross-over connection portion 133 and conductive part 140 can't be destroyed established electrode portion 131.So far, sensed layer 130 forms, and describes in detail before its element, so locate to repeat no more.
Other is understood that, in another embodiment, when sensed layer adopted structure shown in the 6th figure, electrode portion 531 can adopt indium tin oxide (ITO) material, and its formation temperature can be between 20 ℃ to 30 ℃; Cross-over connection portion 533 also can adopt the indium tin oxide material, and its formation temperature can be between 300 ℃ to 350 ℃, and preferably, conductive part 540 also adopts indium tin oxide (ITO) material, and it can form simultaneously with electrode portion 531.
With reference to the 11st figure, in step 606, form signal lead layer 150 at first shielding layer 120, signal lead layer 150 can electrically connect by conductive part 140 with electrode portion 131.In another embodiment, can not form conductive part 140, can directly signal lead layer 150 be electrically connected with electrode portion 131.The material of signal lead layer 150 for example is metal materials such as silver, aluminium, indium tin oxide transparent conductive materials such as (ITO), or aforementioned combination.Preferably, signal lead layer 150 metal material, these materials have preferable electric conductivity.Signal lead layer 150 can be by being the formation of shadow and etch process or printing process.In another preferred embodiment, if cross-over connection portion 133 adopts same material with signal lead layer 150, as be all metal material, then cross-over connection portion 133 can finish in step 606 simultaneously with signal lead layer 150.
With reference to the 11st figure, between step 606 and step 608, the formation method of contactor control device of the present utility model more is included in 150 formation of signal lead layer and forms protective seam 150 afterwards.More specifically; with reference to the 11st figure; the one side of protective seam 160 is arranged on the surface of cover plate 110 at the 3rd regional III; be arranged at second area II on the flat surface of first shielding layer 120; be arranged on the signal lead layer 150 at first area I, the another side of protective seam 160 then in order to the second shielding layer 170(that carries follow-up formation shown in the 12nd figure).Protective seam 160 can adopt transparent insulation material, for example is photoresistance or silicon dioxide.In one embodiment, when protective seam 160 adopted transparent photoresist, its thickness can be 1500nm to 2000nm.In another embodiment, when protective seam 160 adopted earth silicon material, its thickness can be 10nm to 30nm.The material of protective seam 160 and thickness can adjust according to the different product demand, are not limited to above material and thickness.
With reference to the 12nd figure, in step 608, form second shielding layer 170 at the protective seam 160 that is positioned at shielded area M.
In one embodiment, second shielding layer 170 can only be positioned at the 3rd regional III near cover plate 110 edges.
In one embodiment, the scope that arranges of second shielding layer 170 can more comprise second area II, and namely second shielding layer 170 is positioned at second area II and the 3rd regional III.
In a preferred embodiment, shown in the 12nd figure, the scope that arranges of second shielding layer 170 more comprises second area II and first area I, namely second shielding layer 170 can be extended to second area II and the 3rd regional III by the first area I of shielded area M, makes the scope of second shielding layer 170 contain whole shielded area M.
In the above-described embodiments, be after signal lead layer 150 forms, to form protective seam 160, and after protective seam 160 forms, form second shielding layer 170 again.It should be noted, in another embodiment, illustrate as the 5th figure, second shielding layer 170 is to form after signal lead layer 150 forms, then form protective seam 160 again, in this embodiment, second shielding layer 170 is arranged on the surface of cover plate 110 at the 3rd regional III, and in another preferred embodiment, the formation scope of second shielding layer 170 can more comprise second area II and first area I, and second shielding layer 170 is arranged on the flat surface of first shielding layer 120 at second area II; Second shielding layer 170 is arranged on the signal lead layer 150 at first area I.
In one embodiment, second shielding layer 170 can have different viscosity with first shielding layer 120, and preferably, the higher material of second shielding layer, 170 employing viscosity (for example can be between 3500cps-12000cps, more specifically, can be 4000cps, 6000cps or 7500cps), in order to control the surface smoothness of second shielding layer 170 preferably.In a preferred embodiment, second shielding layer 170 can be colored ink material (preferably as black ink), and it can be made up of pigment, link stuff and auxiliary agent, and viscosity can reach cps up to ten thousand, and it can form by mode of printing.Preferably, first shielding layer 120 adopts identical or close color with second shielding layer 170.
Generally speaking, when forming the shielding layer of contactor control device, need photoresistance is applied to cover plate (for example being glass) edge.Yet because the physical influence of photoresistance liquid and glass edge, the shielding layer that causes contactor control device is in substrate edges irregular phenomenon such as thin partially, thick partially, the disappearance of appearance easily.Yet, in the contactor control device of the utility model one embodiment, can utilize the secondary coating technique and avoid the problems referred to above.After coating for the first time, the out-of-flatness part at the edge of removable shielded area (design of contracting in namely first shielding layer adopts), and stay first shielding layer of tool flat surface, on flat surface, can form first shielding layer (for example being the black light resistance layer) with gradation zone and normal region.Then, the coating that recycling is close or identical with the first shielding layer color carries out second time coating, and forms complete overlay masking district or second shielding layer of shielded area, cover part (for example being black ink layer) only.By this, can avoid the edge of contactor control device to have irregular phenomenons such as thin partially, thick partially, disappearance.It should be noted that if the identical or close coating of overcoating cloth color of attaching most importance to only, though at the solid colour of the coated face of cover plate, inevitable, naked eyes are discernable to go out aberration (be similar to common pigment and be coated with in different time points, the situation of aberration can occur).Therefore, in embodiment of the present utility model, the pattern by in the gradual change of the intersection of first shielding layer and second shielding layer can allow the color of first, second shielding layer staggered, make its aberration that good transition can be arranged, and reach the degree that naked eyes are not easy to differentiate.In addition, when first shielding layer and second shielding layer adopt color inequality, by the pattern in the gradual change of the intersection of first shielding layer and second shielding layer, to make the shielded area of contactor control device have composite coloured and pattern, and then can satisfy the diversified demand of contactor control device shielded area design and color.
Though the utility model discloses as above with several preferred embodiments; so it is not in order to limit the utility model; have in the technical field under any and know the knowledgeable usually; in not breaking away from spirit and scope of the present utility model; when changing arbitrarily and retouching, therefore protection domain of the present utility model is as the criterion when looking claims person of defining.

Claims (15)

1. a contactor control device is characterized in that, comprising:
One cover plate has the shielded area that a visible area and is positioned at this visible area side, and the zone that the direction of this shielded area from this visible area toward this side edge thereof divided in regular turn comprises a first area, a second area and one the 3rd zone;
One first shielding layer is arranged at the surface of this cover plate and is positioned at this first area and this second area, and wherein this first shielding layer has a flat surface;
One signal lead layer is positioned at this first area and is arranged on this flat surface of this first shielding layer; And
One second shielding layer is positioned at the 3rd zone near this side edge thereof at least, and wherein, the viscosity of this second shielding layer is greater than the viscosity of this first shielding layer.
2. contactor control device according to claim 1 is characterized in that, the viscosity of this first shielding layer is between 3cps to 50cps, and the viscosity of this second shielding layer is between 3500cps-12000cps.
3. contactor control device according to claim 1 is characterized in that, this first covers series of strata one photoresist layer, and this second covers series of strata one ink lay.
4. contactor control device according to claim 1 is characterized in that, this first shielding layer is identical with the color of this second shielding layer.
5. contactor control device according to claim 1 is characterized in that, this first shielding layer is different with the color of this second shielding layer.
6. contactor control device according to claim 1 is characterized in that, the width of this second area of this shielded area is between 1.5mm to 3.5mm.
7. contactor control device according to claim 1 is characterized in that, the width in the 3rd zone of this shielded area is between 0.25mm to 0.5mm.
8. contactor control device according to claim 1, it is characterized in that this shielded area further is the periphery round this visible area, this first area of this shielded area is around this visible area, this second area is around this first area, and the 3rd zone is around this second area.
9. contactor control device according to claim 1 is characterized in that, the scope that arranges of this second shielding layer more comprises this second area.
10. contactor control device according to claim 1 is characterized in that, this first shielding layer that is positioned at this second area has a gradual change pattern.
11. contactor control device according to claim 1 is characterized in that, the scope that arranges of this second shielding layer more comprises this second area and this first area, wherein:
This second shielding layer is arranged on the surface of this cover plate in the 3rd zone;
This second shielding layer is arranged on this flat surface of this first shielding layer at this second area; And
This second shielding layer is arranged on this signal lead layer in this first area.
12. contactor control device according to claim 1; it is characterized in that; more comprise a protective seam; wherein the one side of this protective seam is arranged on the surface of this cover plate in the 3rd zone; be arranged at this second area on this flat surface of this first shielding layer; be arranged on this signal lead layer in this first area, the another side of this protective seam then carries this second shielding layer.
13. contactor control device according to claim 1 is characterized in that, comprises that more one electrically connects the sensed layer of this signal lead layer, this sensed layer is this visible area scope that is arranged on the surface of this cover plate and is positioned at this cover plate.
14. contactor control device according to claim 13 is characterized in that, this sensed layer comprises:
One electrode portion comprises and a plurality ofly is arranged in first electrode of row, a plurality of second electrode that is arranged in rows, and the connecting portion of adjacent this second electrode of a plurality of connection;
Plural number cross-over connection portion is in order to be connected same listing and this adjacent first electrode; And
The plural number insulation division is arranged between this connecting portion and this cross-over connection portion.
15. contactor control device according to claim 13 is characterized in that, more comprises a conductive part, this conductive part is in order to electrically connect this sensed layer and this signal lead layer.
CN 201320074160 2013-02-17 2013-02-17 Touch device Expired - Fee Related CN203149519U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103995609A (en) * 2013-02-17 2014-08-20 宸鸿科技(厦门)有限公司 Touch device and forming method thereof
CN103995612A (en) * 2014-05-07 2014-08-20 合肥鑫晟光电科技有限公司 Touch module, manufacturing method thereof and display device
CN105094472A (en) * 2014-05-15 2015-11-25 宸鸿科技(厦门)有限公司 Touch panel
CN112181198A (en) * 2020-09-25 2021-01-05 业成科技(成都)有限公司 Touch module and electronic equipment

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103995609A (en) * 2013-02-17 2014-08-20 宸鸿科技(厦门)有限公司 Touch device and forming method thereof
WO2014124601A1 (en) * 2013-02-17 2014-08-21 宸鸿科技(厦门)有限公司 Touch control device and forming method thereof
CN103995612A (en) * 2014-05-07 2014-08-20 合肥鑫晟光电科技有限公司 Touch module, manufacturing method thereof and display device
WO2015169041A1 (en) * 2014-05-07 2015-11-12 京东方科技集团股份有限公司 Touch control module and manufacturing method therefor, and display device
CN103995612B (en) * 2014-05-07 2016-08-24 合肥鑫晟光电科技有限公司 A kind of touch module, its manufacture method and display device
US9690434B2 (en) 2014-05-07 2017-06-27 Boe Technology Group Co., Ltd. Touch module, manufacturing method thereof and display device
CN105094472A (en) * 2014-05-15 2015-11-25 宸鸿科技(厦门)有限公司 Touch panel
CN105094472B (en) * 2014-05-15 2018-08-07 宸鸿科技(厦门)有限公司 A kind of touch panel
CN112181198A (en) * 2020-09-25 2021-01-05 业成科技(成都)有限公司 Touch module and electronic equipment

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