CN104035645B - Capacitive touch control panel structure and its manufacture method - Google Patents
Capacitive touch control panel structure and its manufacture method Download PDFInfo
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- CN104035645B CN104035645B CN201410311514.9A CN201410311514A CN104035645B CN 104035645 B CN104035645 B CN 104035645B CN 201410311514 A CN201410311514 A CN 201410311514A CN 104035645 B CN104035645 B CN 104035645B
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Abstract
Capacitive touch control panel structure of the invention, including substrate, shielding layer, the first transparency conducting layer, transparent insulating layer and the second transparency conducting layer, first, second transparency conducting layer is respectively arranged with the first pattern, the second pattern, in a direction perpendicular to a substrate, there is overlapping region with second connecting portion in the first pattern and the second pattern only first connecting portion, it is characterised in that：First connecting portion is differed with the width and thickness of second connecting portion.The manufacture method of contact panel of the invention, including：A) chooses substrate；B) sets up screen layer；C) sets the first transparency conducting layer；D) sets transparent insulating layer；E) sets the second transparency conducting layer.Capacitive touch control panel structure of the invention, on the premise of ensureing that resistance value, capacitance are constant, realizes the purpose for reducing transparent insulating layer thickness, reduces the consumption of insulating barrier ISO, reduces the manufacturing cost of capacitance type touch-control panel.
Description
Technical field
The present invention relates to a kind of capacitive touch control panel structure and its manufacture method, in particular, more particularly to it is a kind of
The capacitive touch control panel structure and its manufacture method of thickness of insulating layer can be effectively reduced.
Background technology
Capacitive touch panels are generally as a kind of this more ripe product, its structure：From bottom to up successively by base
Plate, shielding layer, the first transparency conducting layer, insulating barrier and the second transparency conducting layer composition, the first transparency conducting layer are saturating with second
Insulating barrier between bright conductive layer is expensive ISO materials, and insulating barrier is thicker, and the technology difficulty of making is bigger.For example
The patent document of Patent No. CN201110089426.5, discloses a kind of single-face structure of touch control panel and preparation method thereof, should
In technical scheme：Multiple first patterns are evenly arranged with first transparency conducting layer in the first direction, in the second transparency conducting layer
The second pattern is evenly arranged with a second direction, and the staggeredly position between the first pattern and the second pattern is formed being uniformly distributed
Electric capacity, whether changed the position touched to judge contact panel by the electric capacity for perceiving fixed position.
Under normal circumstances, because the first pattern has the same shape and dimensions with the second pattern, and on intervening portion
Capacitance it is smaller better, this requires the insulating barrier ISO between the first transparency conducting layer and the second transparency conducting layer
（insulation）Thickness is thicker to be difficult to be made thin thin better, increased technology difficulty, simultaneously because ISO materials are sufficiently expensive,
Increased the manufacturing cost of whole capacitance type touch-control panel.
The content of the invention
A kind of shortcoming in order to overcome above-mentioned technical problem of the invention, there is provided electric capacity for effectively reducing thickness of insulating layer
Formula is touch panel structure provided and its manufacture method.
Capacitive touch control panel structure of the invention, including the substrate, shielding layer, first transparent being sequentially distributed from the bottom to top
Conductive layer, transparent insulating layer and the second transparency conducting layer, are distributed with some and are parallel to each other in first transparency conducting layer
The first pattern, some the second patterns being parallel to each other, first pattern and the second pattern are distributed with the second transparency conducting layer
It is constructed from a material that be electrically conducting；First pattern is made up of the first noumenon and first connecting portion being spaced apart successively, the second figure
Case is made up of the second body and second connecting portion being spaced apart successively；In a direction perpendicular to a substrate, the first pattern and
There is the overlapping region shape of overlapping region, first connecting portion and second connecting portion with second connecting portion in two patterns only first connecting portion
Into the electric capacity that can perceive touch position；It is characterized in that：The width and thickness of the first connecting portion and second connecting portion are not
Identical, the cross-sectional area with thicker connecting portion is more than or equal to relatively thin connecting portion in first connecting portion and second connecting portion
Cross-sectional area.
The first connecting portion is differed with the width and thickness of second connecting portion, refers to if one of connecting portion
Width it is smaller than the width of another connecting portion, then its thickness should be bigger than another, the resistance value of formation pattern to ensure
Constant, between first connecting portion and second connecting portion capacitance is constant so that the thickness of transparent insulating layer reduces.
Capacitive touch control panel structure of the invention, if the width and thickness of first connecting portion are respectively in the first pattern
With, then the width of second connecting portion is equal in the second pattern, thickness is more than or equal to, 0 ＜＜ 1.
This kind of situation is narrower than second connecting portion for the width of first connecting portion, but thickness is thicker than second connecting portion.
Capacitive touch control panel structure of the invention, if the width and thickness of second connecting portion are respectively in the second pattern
With, then the width of first connecting portion is equal in the first pattern, thickness is more than or equal to, 0 ＜＜ 1.
This kind of situation is narrower than first connecting portion for the width of second connecting portion, but thickness is thicker than first connecting portion.
Capacitive touch control panel structure of the invention, the width of the second connecting portion is first connecting portion（33）Width
1/2nd, 2 times of thickness more than or equal to first connecting portion thickness.
Capacitive touch control panel structure of the invention, the substrate is clear glass material, the first transparency conducting layer and the
Two transparency conducting layers are constituted by indium tin oxide ITO.
Capacitive touch control panel structure of the invention, the first noumenon and the second body are shaped as square, rectangle, water chestnut
The polygon of shape, circle, ellipse or side number more than 4, first connecting portion and second connecting portion are shaped as strip.
The manufacture method of capacitive touch control panel structure of the invention, it is particular in that, by following steps come real
It is existing：A) chooses substrate, and it is substrate to choose satisfactory translucency material material；B) sets up screen layer, is set above substrate
The screen layer being made up of light tight material is put, through hole is provided with screen layer, with what is sent through the display device below substrate
Light；C) sets the first transparency conducting layer, and the first electrically conducting transparent is set in the expose portion of the upper surface of screen layer and substrate
Layer, is provided with some first patterns being parallel to each other in the first transparency conducting layer, the first pattern is connected by the first noumenon and first
Socket part is spaced apart composition；D) sets transparent insulating layer, and transparent insulating layer is set in the upper surface of the first transparency conducting layer；e).
Second transparency conducting layer is set, the second transparency conducting layer is set on the upper surface of transparent insulating layer, in the second transparency conducting layer
Some second patterns being parallel to each other are provided with, the second pattern is spaced apart by the second body and second connecting portion and constituted；Its
In, second connecting portion is formed through storehouse technique twice, the work of the second connecting portion of first connecting portion and top in transparent insulating layer
With lower formation electric capacity, to detect the touch position of whole panel；First connecting portion is different from the width and thickness of second connecting portion,
To reduce the thickness of transparent insulating layer, reduces cost.
The beneficial effects of the invention are as follows：Capacitive touch control panel structure of the invention, in the first transparency conducting layer
The second pattern in first pattern and the second transparency conducting layer, by the width for reducing connecting portion in the first pattern or the second pattern
Degree, while increase its thickness, ensureing constant first, second patterned resistive value and first connecting portion and second connecting portion institute shape
Into capacitance it is constant on the premise of, realize reduce transparent insulating layer thickness purpose, increased technology stability；Meanwhile, subtract
The small consumption of insulating barrier ISO, reduces the manufacturing cost of capacitance type touch-control panel.
Brief description of the drawings
Fig. 1 is the structural representation of capacitance type touch-control panel；
Fig. 2 is the distribution map of the first pattern and the second pattern in existing capacitive touch control panel structure；
Fig. 3 is the stereogram of the pattern of relative position first and the second pattern in existing capacitance type touch-control panel；
Fig. 4 is the structural representation of the first transparency conducting layer and the second transparency conducting layer in existing capacitance type touch-control panel
Figure；
Fig. 5 is the structural representation of the first transparency conducting layer and the second transparency conducting layer in capacitance type touch-control panel of the invention
Figure；
Fig. 6 is the stereogram of the pattern of relative position first and the second pattern in capacitance type touch-control panel of the invention.
In figure：1 substrate, 2 shielding layers, 3 first transparency conducting layers, 4 transparent insulating layers, 5 second transparency conducting layers；31 first
Pattern, 32 the first noumenons, 33 first connecting portions, 51 second patterns, 52 second bodies, 53 second connecting portions.
Specific embodiment
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, giving the structural representation of capacitance type touch-control panel, it is successively by substrate 1, masking from bottom to up
The 2, first transparency conducting layer 3 of layer, transparent insulating layer 4, the second transparency conducting layer 5 are constituted, and substrate 1 can select transparent soft glass material
Matter, shielding layer 2 is located at the top of substrate 1, and through hole is provided with screen layer, with the light sent through the display device below substrate
Line.The first pattern 31 is provided with first transparency conducting layer 3, the second pattern 51, the first figure are provided with the second transparency conducting layer 5
The pattern 51 of case 31 and second is constituted by conductive material.
As shown in Fig. 2 the distribution map of the first pattern and the second pattern in capacitive touch control panel structure is given, it is empty in figure
Represented by line is the first pattern 31 in underlying first transparency conducting layer 3, represented by solid line for above
The second pattern 51 in second transparency conducting layer 5.It can be seen that, some first patterns 31 are parallel to each other and are each other insulation shape
State, some second patterns 51 are also arranged in parallel and there is certain angle between the first pattern 31.
First transparency conducting layer 3 and the second transparency conducting layer 5 are constituted by indium tin oxide ITO, the first noumenon 32 and the
The shape of two bodies 52 can be more than 4 polygon, first connecting portion using square, rectangle, rhombus, circle, ellipse or side number
33 and second connecting portion 52 be shaped as strip.
The first shown pattern 31 is spaced apart and is constituted by the first noumenon 32 and first connecting portion 33, and the second pattern 51 is by
Two patterns 52 and second connecting portion 53 are spaced apart composition.On the direction where substrate, only first connecting portion 32
There is overlapping region with second connecting portion 53, and do not exist overlapping region between the body 52 of the first noumenon 32 and second.So,
One connecting portion 33, second connecting portion 53 and the transparent insulating layer between them are formed electric capacity, by the change for detecting electric capacity
Change to perceive the position that contact panel is touched.
As shown in figure 3, giving the pattern of relative position first and the second pattern in existing capacitance type touch-control panel
Stereogram, if the width of first connecting portion 33 and second connecting portion 53 is, length be, thickness be, first connecting portion 33 with
The distance between second connecting portion 53（That is the thickness of transparent insulating layer 4）For。
The electricity that definition and computing formula from electric capacity and resistance, first connecting portion 33 and second connecting portion 53 are formed
Hold size to be proportional toNumerical value, the resistance value size of first connecting portion 33 and second connecting portion 53 is proportional to.Therefore,
If reducing the thickness of transparent insulating layer 4, the electric capacity between first connecting portion 33 and second connecting portion 53 will certainly be increased,
If set thickness change coefficient as, i.e., the thickness after the change of transparent insulating layer 4=If to keep electricity
Appearance is constant, then should reduce widthOr length, due to lengthIt is generally immutable, therefore width ought to be reduced, after change
Width, just can guarantee that electric capacity is constant.
In the narrowed width of connecting portion, because resistance value size is proportional to, can increase resistance value, simultaneously because
LengthIt is general immutable, the thickness of connecting portion should be increased, make the thickness of the junction after change, can just ensure electricity
Resistance is constant.In order to ensure the electric capacity and resistance characteristic of the connecting portion that width changes, should meet：First connecting portion 33 and
The cross-sectional area with thicker connecting portion is more than or equal to the cross-sectional area with relatively thin connecting portion in two connecting portions 53.
As shown in Figure 4 and Figure 5, sets forth the knot of the first transparency conducting layer and the second transparency conducting layer before and after changing
Structure schematic diagram, it is seen then that in order that the first pattern 31 uniformly changes relative to the capacitance and resistance value of the second pattern 51, thoroughly
Relative to becoming thinner before, the second transparency conducting layer 5 increases bright insulating barrier 4 with the increase of the thickness of second graph 51, but the
The width of two connecting portions 53 reduces.As shown in fig. 6, giving the pattern of relative position first in the capacitance type touch-control panel of invention
With the stereogram of the second pattern, by the width and the thickness of increase junction of the junction that narrows, transparent insulating layer 4 is being reduced
Thickness in the case of so that the physical characteristic of whole capacitive touch control panel structure does not change, and both increased technique steady
It is qualitative, reduce cost, in turn ensure that and normally use.
The manufacture method of capacitive touch control panel structure of the invention, is realized by following steps：
A) chooses substrate, and it is substrate to choose satisfactory translucency material material；
B) sets up screen layer, and the screen layer being made up of light tight material is set in the top of substrate, is provided with screen layer logical
Hole, with the light sent through the display device below substrate；
C) sets the first transparency conducting layer, and setting first in the expose portion of the upper surface of screen layer and substrate transparent leads
Electric layer, is provided with some first patterns being parallel to each other in the first transparency conducting layer, the first pattern is by the first noumenon and first
Connecting portion is spaced apart composition；
D) sets transparent insulating layer, and transparent insulating layer is set in the upper surface of the first transparency conducting layer；
E) sets the second transparency conducting layer, and the second transparency conducting layer is set on the upper surface of transparent insulating layer, and second is saturating
Some second patterns being parallel to each other are provided with bright conductive layer, the second pattern is by the second body and second connecting portion interval point
Cloth is constituted；Wherein, second connecting portion is formed through storehouse technique twice, and the second connecting portion of first connecting portion and top is transparent exhausted
Electric capacity is formed in the presence of edge layer, to detect the touch position of whole panel；The width of first connecting portion and second connecting portion and
Thickness is different, to reduce the thickness of transparent insulating layer, increased technology stability, and cost is reduced again.
Claims (5)
1. a kind of capacitive touch control panel structure, including the substrate (1), shielding layer (2), first transparent being sequentially distributed from the bottom to top
Conductive layer (3), transparent insulating layer (4) and the second transparency conducting layer (5), some are distributed with first transparency conducting layer
The first pattern (31) being parallel to each other, is distributed with some the second patterns being parallel to each other, the first figure in the second transparency conducting layer
Case and the second pattern are constructed from a material that be electrically conducting；First pattern is connected by the first noumenon (32) being spaced apart successively and first
Socket part (33) is constituted, and the second pattern is made up of the second body (52) and second connecting portion (53) being spaced apart successively；Vertical
In on the direction of substrate, there is overlapping region in the first pattern and the second pattern only first connecting portion, first connects with second connecting portion
Socket part forms the electric capacity that can perceive touch position with the overlapping region of second connecting portion；It is characterized in that：The first connecting portion
Width and thickness with second connecting portion are differed, transversal with thicker connecting portion in first connecting portion and second connecting portion
Area is more than or equal to the restriction relation of the cross-sectional area with relatively thin connecting portion, its existence condition 1 or condition 2：
Condition 1：If the width and thickness of first connecting portion (33) are respectively w and d in the first pattern (31), then the second pattern (51)
The width of middle second connecting portion (53) is equal to α w, thickness and is more than or equal to0 ＜ α ＜ 1；
Condition 2：If the width and thickness of second connecting portion (53) are respectively w ' and d ' in the second pattern (51), then the first pattern
(31) width of first connecting portion (33) is equal to α w ', thickness and is more than or equal in0 ＜ α ＜ 1.
2. capacitive touch control panel structure according to claim 1, it is characterised in that：The width of the second connecting portion (53)
Spend for first connecting portion (33) width 1/2, thickness and be more than or equal to 2 times of first connecting portion thickness.
3. capacitive touch control panel structure according to claim 1, it is characterised in that：The substrate (1) is clear glass
Material, the first transparency conducting layer (3) and the second transparency conducting layer (5) are constituted by indium tin oxide ITO.
4. capacitive touch control panel structure according to claim 1, it is characterised in that：The first noumenon (32) and second
Body (52) be shaped as square, rectangle, rhombus, circle, ellipse or side number more than 4 polygon, first connecting portion (33)
Strip is shaped as with second connecting portion (53).
5. the manufacture method of the capacitive touch control panel structure described in a kind of claim 1, it is characterised in that by following steps
To realize：
A) chooses substrate, and it is substrate to choose satisfactory translucency material material；
B) sets up screen layer, and the screen layer being made up of light tight material is set in the top of substrate, and through hole is provided with screen layer,
With the light sent through the display device below substrate；
C) sets the first transparency conducting layer, and the first transparency conducting layer is set in the expose portion of the upper surface of screen layer and substrate,
Some first patterns being parallel to each other are provided with first transparency conducting layer, the first pattern is by the first noumenon and first connecting portion
It is spaced apart composition；
D) sets transparent insulating layer, and transparent insulating layer is set in the upper surface of the first transparency conducting layer；
E) sets the second transparency conducting layer, sets the second transparency conducting layer on the upper surface of transparent insulating layer, and second transparent leads
Some second patterns being parallel to each other are provided with electric layer, the second pattern is spaced apart group by the second body and second connecting portion
Into；Wherein, second connecting portion is formed through storehouse technique twice, and the second connecting portion of first connecting portion and top is in transparent insulating layer
In the presence of form electric capacity, to detect the touch position of whole panel；The width and thickness of first connecting portion and second connecting portion
It is different.
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| TWI694362B (en) * | 2018-12-27 | 2020-05-21 | 友達光電股份有限公司 | Touch control display device |
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| CN103455225A (en) * | 2013-08-15 | 2013-12-18 | 深圳欧菲光科技股份有限公司 | Capacitive touch component and touch device |
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