CN203787106U - Conductive film, and capacitive touch panel including same - Google Patents
Conductive film, and capacitive touch panel including same Download PDFInfo
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- CN203787106U CN203787106U CN201420191418.0U CN201420191418U CN203787106U CN 203787106 U CN203787106 U CN 203787106U CN 201420191418 U CN201420191418 U CN 201420191418U CN 203787106 U CN203787106 U CN 203787106U
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- overlap joint
- grid
- grid cell
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- conducting film
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Abstract
The utility model provides a conductive film which includes a substrate and a conductive layer which is disposed on the substrate and includes at least one conductive electrode. The conductive electrode is a conductive grid made of a conductive material. The conductive grid includes multiple grid units. At least one overlapping wire made of a conductive material is disposed in the conductive grid. One end of each overlapping wire is disposed on one side of one grid unit while the other end is disposed on another side of the same grid unit or on another overlapping wire of the same grid unit. With the use of the conductive film, enough conductive nodes can still be provided and high conductive performance can be maintained when a conventional conductive grid pattern is applied to a conductive electrode with very narrow width.
Description
Technical field
The utility model relates to a kind of conducting film, is specially a kind of conducting film that can be used for capacitance type touch-control panel.
Background technology
Conducting film is a kind of film that has satisfactory electrical conductivity and have high transmission rate at visible light wave range, has been widely used in the fields such as flat panel display, photovoltaic device, contact panel and electromagnetic shielding.
Be applied to the conducting film of capacitance type touch-control panel product, be provided with a plurality of conductive electrodes on base material, conductive electrode is configured to conductive grid by electric conducting material and forms.The touch action of user on the touch face of conducting film can cause that the mutual capacitance between conductive electrode changes, conductive electrode converts the capacitance variations detecting to signal output, makes processor according to signal, determine user's touch action and touch location.And select capacitive touch pen to replace finger and the collocation of contact panel series products to use, and can realize more simply and easily the functions such as touch-control input, handwriting recognition, improve user's experience.Usually, capacitive touch pen is divided into passive type pointer, active pointer and inductance pen (EMR), wherein passive type pointer due to processing ease, manufacture the advantages such as simple, cost is low, Non-energy-consumption, there are the potentiality that become pointer main product.
But, due to the wider width of the conductive electrode of conventional conductive film, so can only accurately detect the touch action that contact area is larger.The nib of the passive type pointer being therefore used in conjunction with it can only be done greatlyr conventionally, to obtain enough contacts area when contacting with conducting film.This traditional product mix, because nib is larger, so touch-control precision is generally not high.
If reduce the width of the conductive electrode of conducting film, although can make conductive electrode correspondingly detect the touch action that contact area is less, but on the basis of original conductive grid, manufacture narrower conductive electrode, will certainly cause the conductive node in conductive electrode to reduce, the electric conductivity of conductive electrode also can decline thereupon.
If when reducing the conductive electrode width of conducting film, the size of mesh opening of the original conductive grid design of scaled down correspondingly, the new mesh design scheme obtaining after dwindling can not maintain original mesh design scheme and estimate the optical effect obtaining, and need to redesign grid and evade the optical effect that affects display effect.
Utility model content
For solving the problems of the technologies described above, the utility model provides a kind of conducting film, comprising: substrate; Conductive layer, be arranged at described substrate, described conductive layer comprises at least one conductive electrode, described conductive electrode is the conductive grid that electric conducting material forms, described conductive grid comprises a plurality of grid cells, wherein, is provided with the overlap joint line that at least one electric conducting material forms in described conductive grid, one end of every overlap joint line is arranged on a limit of described grid cell, and the other end is arranged on another limit of same grid cell or is arranged on another overlap joint line of same grid cell.
According to an execution mode of the present utility model, described overlap joint line is arranged at described conductive grid at random.
According to another execution mode of the present utility model, between many overlap joint lines described at least one in grid cell, there is an interface point, the distance between described interface point and the summit of described grid cell is greater than zero.
According to another execution mode of the present utility model, one end of described many overlap joint lines is located at respectively on many different limits of same described grid cell, and the other end all comes together in described interface point.
According to another execution mode of the present utility model, the angle between adjacent two overlap joint lines of described many overlap joint lines is 30 °～150 °; The angle on described overlap joint line and the grid cell limit that joins with it is 30 °～90 °.
According to another execution mode of the present utility model, in a plurality of regions that described many overlap joint lines mark off described grid cell, the difference of the area in any two regions is not more than 40% of described a plurality of regions gross area.
According to another execution mode of the present utility model, the distance between the end points of described overlap joint line and the summit of described grid cell is greater than zero.
According to another execution mode of the present utility model, the angle between the adjacent both sides of described grid cell is 30 °～150 °.
According to another execution mode of the present utility model, on grid cell, the distance of the mid point on the end points of described overlap joint line and its limit, place is less than 1/5 of limit, the described place length of side.
According to another execution mode of the present utility model, one or more in line segment, curve, broken line of described overlap joint line selection.
According to another execution mode of the present utility model, described conductive grid is embedded in or is convexly set in described substrate; Described overlap joint line is embedded in or is convexly set in described substrate.
The utility model further provides a kind of capacitance type touch-control panel, comprises the conducting film described in above-mentioned any one.
Conducting film of the present utility model makes original conductive grid pattern when being applied to the conductive electrode of narrower in width, still can provide enough conductive nodes, maintains higher electric conductivity, improves the touch-control sensitivity of passive type capacitive touch pen.
The overlap joint line of setting up in conducting film of the present utility model arranges for random, the infringement of the striped that therefore can not increase the weight of to have obvious bright dark difference on the basis of original lattice to visual effect, and can not make optical property obviously decline.
Overlap joint line of the present utility model is repartitioned original lattice, make the distribution of light transmittance of conducting film more even, especially avoid occurring that local transparent rate departs from the too many situation of ensemble average light transmittance, reduce the probability of the spot appearance of light and shade inequality.
Accompanying drawing explanation
Fig. 1 be on the conducting film of the utility model the first embodiment conductive electrode at the schematic diagram of arranging of substrate;
Fig. 2 a is the schematic diagram of arranging of grid cell and overlap joint line in the conductive grid of the utility model the second embodiment;
Fig. 2 b is the schematic diagram of arranging of grid cell and overlap joint line in the conductive grid of the utility model the 3rd embodiment;
Fig. 2 c is the schematic diagram of arranging of grid cell and overlap joint line in the conductive grid of the utility model the 4th embodiment;
Fig. 2 d is the schematic diagram of arranging of grid cell and overlap joint line in the conductive grid of the utility model the 5th embodiment;
Fig. 3 is grid cell and have the schematic diagram of arranging of the overlap joint line of interface point in the conductive grid of the utility model the 6th embodiment;
Fig. 4 a-4d overlaps the shape schematic diagram of line in the grid cell of other embodiment of the utility model;
Fig. 5 is the rhombus conductive grid of the utility model the 7th embodiment and the schematic diagram of arranging of overlap joint line;
Fig. 6 a is the cutaway view along A-A line in Fig. 5;
Fig. 6 b-6e is that the conducting film of other embodiment of the utility model is along the cutaway view of A-A line in Fig. 5.
Embodiment
The exemplary embodiments that embodies the utility model feature & benefits will describe in detail in the following description.Be understood that the utility model can have various variations on different embodiment, it neither departs from scope of the present utility model, and explanation wherein and to be shown in be when the use that explain in essence, but not in order to limit the utility model.
As shown in Figure 1, the conducting film of the utility model the first embodiment, comprises substrate 1 and is arranged at the lip-deep transparency conducting layer of substrate 1.Wherein, the second surface that substrate 1 has first surface and is oppositely arranged with first surface; Conductive layer is located at the first surface of substrate 1, comprises a plurality of conductive electrodes 2.On the first surface of substrate 1, conductive electrode 2 is along first direction setting, and a plurality of conductive electrodes 2 are along arranging with the perpendicular second direction of first direction.
As shown in Fig. 2 a to 2d, the conductive grid 6 of conductive electrode 2 for being formed by electric conducting material, conductive grid 6 is comprised of a plurality of grid cells 3, can be provided with at least one overlap joint line 4 at least one grid cell 3 of conductive grid 6, wherein, the conduction line segment of overlap joint line 4 for being formed by electric conducting material.
The second embodiment as shown in Figure 2 a, grid cell 3 is rhombus, is provided with two crossing overlap joint lines 4 in grid cell 3, every overlap joint line 4 two ends be located at respectively on two parallel opposite side of rhombus, and with other two opposite side keeping parallelisms.
The 3rd embodiment as shown in Figure 2 b, grid cell 3 is rhombus, is provided with two crossing overlap joint lines 4 in grid cell 3, the two ends of every overlap joint line 4 are located at respectively on two parallel opposite side of rhombus at random, and are not parallel to arbitrary limit of network unit 3.
For tetragonal situations such as grid cell 3 are rhombus, arrange that two overlap joint lines 4 can facilitate, grid division unit 3 equably, obtain optimum optical effect and electricity effect.
The 4th embodiment as shown in Figure 2 c, grid cell 3 is irregular polygon, the shape of each grid cell 3, not of uniform size.In the present embodiment, the overlap joint line 4 of grid cell 3 arranges at random, and the overlap joint line 4 in grid cell 3 can be one, also can be many; Many overlap joint lines 4 in same grid cell 3 can be non-intersect, also can intersect, and its intersection point can be positioned at grid cell 3, also can be positioned on the limit of grid cell 3, and the two ends that overlap line 4 can be located on any both sides of grid cell 3 at random.
The 5th embodiment as shown in Figure 2 d, grid cell 3 is irregular bent limit polygon, each limit that forms grid cell 3 is curved section, the shape of each grid cell 3, not of uniform size.In the present embodiment, the overlap joint line 4 of grid cell 3 arranges at random, and the overlap joint line 4 in each grid cell 3 can be one, also can be many.
In the utility model, to the not concrete restriction of the shape of the grid cell of conductive grid, can be for example regular polygon or irregular figure, the polygon of rule can be quadrangle, as square, rhombus, rectangle, parallelogram, trapezoidal etc., or pentagon, hexagon etc.; Irregular figure can be irregular polygon etc.If the conductive grid of conductive electrode is comprised of the grid cell of irregular polygon, when conducting film and display device laminating, the superimposed pattern periodically repeating that can not form of the matrix pattern of rule on the colored filter of irregular conductive grid and display device, situation about being added in regular matrix pattern with regular grid pattern is like this compared, the more difficult striped that occurs having obvious bright dark difference, the optical effect of conducting film product is better.
In the utility model, two end points of every overlap joint line can be located at respectively on any both sides of grid cell at random, and two end points of every overlap joint line all do not overlap with the summit of grid cell.In the situation that there is interface point between many overlap joint lines, interface point does not overlap with the summit of grid cell yet.Overlap joint line arranges at random, avoids overlapping the matrix pattern stack that line forms rule on the pattern that periodically repeats and colored filter, the more difficult striped that occurs having obvious bright dark difference.And two end points and the interface point of overlap joint line do not overlap with the summit of grid cell, can really guarantee to overlap line and on grid cell, can introduce new conductive node, enhancing conductive capability; Also can avoid the line segment of drawing at the place, summit of grid cell too much overstocked, and the light transmittance that causes conducting film is too low and occur in appearance dim spot in part simultaneously; And can prevent that the too intensive angle that causes between grid line of summit place lines due to grid cell is too little, reduce the difficulty of manufacturing process.
Further, in the utility model, two end points of at least one overlap joint line can be located at respectively on one group of opposite side of grid cell at random, and two end points all do not overlap with the summit of grid cell.In the situation that there is interface point between many overlap joint lines, interface point does not overlap with the summit of grid cell yet.Two end points of overlap joint line are located at respectively on one group of opposite side of grid cell at random, can further guarantee to overlap line and cut apart relatively equably grid cell, and size, shape of cutting apart the new grid cell of generation etc. be more or less the same, to obtain good optical effect.
In the utility model, an overlap joint line can be only set on each grid cell, also can arrange two, or more.Particularly, when the grid cell of conductive grid is irregular polygon, overlap joint line quantity on each grid cell can be different, by the overlap joint line of varying number is set on the grid cell in different sizes, shape, can guarantee that size, the shape of each grid cell is more tending towards even.
In the utility model, grid cell can be quadrangle, and than the grid cell of other polygonal shapes, quadrangle is easier to again evenly be divided by two above overlap joint lines.Further, two overlap joint lines are set on tetragonal grid cell, can obtain more simply and easily the equally distributed conductive grid pattern of light transmittance.Further, this quadrangle can be rhombus, the conductive grid of selecting network unit to form, even if network unit is regular grid pattern, also can be by adjusting the direction of conducting film and display device laminating, control to a certain extent the impact that the regular matrix pattern of conductive grid and colored filter superposes optical effect is caused.
In the utility model, also can an interface point be set at random at the interior zone of at least one grid cell of conductive grid, grid cell overlap joint line is at least three, every overlap joint line has respectively an end points to overlap with interface point, another end points is located at respectively in the polygonal different edge of this grid cell at random simultaneously, and another end points and the interface point of overlap joint line all do not overlap with each summit of grid cell.
In the 6th embodiment as shown in Figure 3, grid cell 3 is hexagon, article three, one end of overlap joint line 4 is located at respectively on mutual non-conterminous three limits of grid cell 3, article three, the other end of overlap joint line 4 becomes interface point 5 at the interior coincident configuration of grid cell 3, on every limit of grid cell 3, be provided with an overlap joint line 4, the angle α on grid cell 3 adjacent both sides is 30 °～150 °; The angle β that end points comes together between the adjacent overlap joint line 4 of same interface point 5 is 30 °～150 °, and between the angle of each adjacent overlap joint line, difference is not more than 15 °; The angle γ on the grid cell limit that overlaps line 4 and join with it is 30 °～90 °.In another embodiment, article three, one end of overlap joint line 4 can be arranged at respectively on any three different limits of hexagonal mesh unit 3, the other end becomes interface point 5 at the interior coincident configuration of grid cell 3, and on every limit of grid cell 3, can connect one or more overlap joint line 4, also can not connect any overlap joint line 4.In the utility model, hexagonal grid cell is easier to again evenly be divided by three above overlap joint lines.
In other embodiment of the present utility model, the angle α between the adjacent both sides of grid cell can be 30 °～150 °; At overlap joint, have in the grid cell of interface point between line, the angle β that end points comes together between the adjacent overlap joint line of same interface point can be 30 °～150 °, and between the angle of each adjacent overlap joint line, difference is not more than 15 °; The angle γ on the grid cell limit that overlaps line and join with it can be 30 °～90 °.Between the number of the overlap joint line arranging on each grid cell, differ and be no more than 2, the number of interface point differs and is no more than 1.Like this, can further guarantee, in the place, summit of grid cell and the grid line at interface point place of overlap joint line or being more evenly distributed of overlap joint line, can not cause the light transmittance local distribution of conducting film inhomogeneous, avoid producing local dim spot; In addition, the angle between the place, summit of grid cell and the grid line at the interface point place of overlap joint line or between overlap joint line can be too not little, can not cause the difficulty in manufacturing process.
In the utility model, the distance that every overlap joint line is configured to the mid point on each end points and its limit, place can be less than 1/5 of its place length of side.Like this, further improve the uniformity of the light transmittance of conductive grid, avoided conducting film to occur in appearance the spot of light and shade inequality.And, can prevent that the position of interface point from too departing from the geometric center position of grid cell, and cause light transmittance inhomogeneous.
In embodiment of the present utility model, the area of a plurality of new regions that overlap joint line divide to generate grid cell poor, be not more than a plurality of new region gross areas and 40%.Like this, further guaranteed that overlap joint line cuts apart grid cell relatively equably, and size, shape of cutting apart the new grid cell of generation etc. be more or less the same, the light transmittance of conductive grid is evenly distributed, avoid conducting film to occur in appearance the spot of light and shade inequality.
In other embodiment as shown in Fig. 4 a to 4d, overlap joint line 4 can also be selected from one or more the combination in curve, broken line.
In above embodiment, owing to overlapping line 4 and interface point 5, be all to arrange at random within the specific limits, on the basis of former regular network unit, can further not cause the pattern stack periodically repeating, so can not cause having the obviously striped of bright dark difference on original basis, not increase the weight of.
In the utility model, substrate can form composite substrate for transparent materials such as PET, PC, PMMA, glass, quartz or with the clear plastic polymeric layer arranging thereon; In one embodiment, substrate can form separately for transparent materials such as PC, PMMA; In other embodiment, substrate can also select that PBT etc. is translucent forms composite substrate to opaque material and upper thermoplastic polymer layer thereof.Wherein, thermoplastic polymer layer can select UV to solidify the materials such as glue, hot-setting adhesive, impression glue, PC, PMMA.In several embodiment specific to this case, substrate select PET and on UV solidify the composite substrate that glue-line forms.
In the 7th embodiment shown in Fig. 5, grid cell 3 is rhombus, overlap joint line 4, the two overlap joint lines 4 that are inside provided with two intersections respectively with the adjacent both sides keeping parallelism of grid cell 3.
Fig. 6 a is depicted as a kind of execution mode that conductive electrode 2 in the 7th embodiment is arranged at substrate 1, on the first surface of substrate 1, be provided with latticed groove, electric conducting material is embedded in latticed groove and forms conductive grid 6, and overlap joint line 4 is formed at the first surface of substrate 1 by identical mode.
Fig. 6 b is depicted as another execution mode that conductive electrode 2 in the 7th embodiment is arranged at substrate 1, on the first surface of substrate 1, be provided with latticed groove, electric conducting material is embedded in latticed groove and forms conductive grid 6, and overlap joint line 4 forms by electric conducting material being convexly set in to the first surface of substrate 1.
Fig. 6 c is depicted as another execution mode that conductive electrode 2 in the 7th embodiment is arranged at substrate 1, on the first surface of substrate 1, be provided with thermoplastic polymer layer 7, on surface at thermoplastic polymer layer 7 away from substrate 1, offer latticed groove, electric conducting material is embedded in latticed groove and forms conductive grid 6, and overlap joint line 4 is formed at thermoplastic polymer layer 7 by identical mode.
Fig. 6 d is depicted as another execution mode that conductive electrode 2 in the 7th embodiment is arranged at substrate 1, on the first surface of substrate 1, be provided with thermoplastic polymer layer 7, on surface at thermoplastic polymer layer 7 away from substrate 1, offer latticed groove, electric conducting material is embedded in latticed groove and forms conductive grid 6, and overlap joint line 4 forms by electric conducting material being convexly set in to thermoplastic polymer layer 7.
Fig. 6 e is depicted as another execution mode that conductive electrode 2 in the 7th embodiment is arranged at substrate 1, and conductive grid 6 and overlap joint line 4 are all convexly set on the first surface of substrate 1.
In the utility model, form the electric conducting material of the conductive grid of conductive electrode and the conduction line segment of overlap joint line, main component can be selected the metals such as Cu, Ag, Ag-C, Al, Ni, Cr, Ni-P, and in Graphene, carbon nano-tube, macromolecule conducting material at least one or multiple.In several embodiment specific to this case, the main component of electric conducting material is selected argent material.
Unless be particularly limited, the utility model term used is the implication that those skilled in the art understand conventionally.
The described execution mode of the utility model is only for exemplary purpose; not in order to limit protection range of the present utility model; those skilled in the art can make various other replacements, changes and improvements in scope of the present utility model; thereby; the utility model is not limited to above-mentioned execution mode, and is only defined by the claims.
Claims (12)
1. a conducting film, comprising:
Substrate;
Conductive layer, is arranged at described substrate, and described conductive layer comprises at least one conductive electrode, and described conductive electrode is the conductive grid that electric conducting material forms, and described conductive grid comprises a plurality of grid cells, it is characterized in that,
In described conductive grid, be provided with the overlap joint line that at least one electric conducting material forms, one end of every overlap joint line is arranged on a limit of described grid cell, and the other end is arranged on another limit of same grid cell or is arranged on another overlap joint line of same grid cell.
2. conducting film according to claim 1, is characterized in that, described overlap joint line is arranged at described conductive grid at random.
3. conducting film according to claim 1, is characterized in that, between many overlap joint lines described at least one in grid cell, has an interface point, and the distance between described interface point and the summit of described grid cell is greater than zero.
4. conducting film according to claim 3, is characterized in that, one end of described many overlap joint lines is located at respectively on many different limits of same described grid cell, and the other end all comes together in described interface point.
5. conducting film according to claim 3, is characterized in that, the angle between adjacent two overlap joint lines of described many overlap joint lines is 30 °～150 °; The angle on described overlap joint line and the grid cell limit that joins with it is 30 °～90 °.
6. conducting film according to claim 4, is characterized in that, in a plurality of regions that described many overlap joint lines mark off described grid cell, the difference of the area in any two regions is not more than 40% of described a plurality of regions gross area.
7. conducting film according to claim 1, is characterized in that, the distance between the end points of described overlap joint line and the summit of described grid cell is greater than zero.
8. conducting film according to claim 1, is characterized in that, the angle between the adjacent both sides of described grid cell is 30 °～150 °.
9. conducting film according to claim 1, is characterized in that, on grid cell, the distance of the mid point on the end points of described overlap joint line and its limit, place is less than 1/5 of limit, the described place length of side.
10. according to the conducting film described in claim 1 any one, it is characterized in that one or more in line segment, curve, broken line of described overlap joint line selection.
11. according to the conducting film described in claim 1 to 10 any one, it is characterized in that, described conductive grid is embedded in or is convexly set in described substrate; Described overlap joint line is embedded in or is convexly set in described substrate.
12. 1 kinds of capacitance type touch-control panels, is characterized in that, the conducting film that comprises claim 1 to 11 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420191418.0U CN203787106U (en) | 2014-04-18 | 2014-04-18 | Conductive film, and capacitive touch panel including same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420191418.0U CN203787106U (en) | 2014-04-18 | 2014-04-18 | Conductive film, and capacitive touch panel including same |
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| Publication Number | Publication Date |
|---|---|
| CN203787106U true CN203787106U (en) | 2014-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420191418.0U Expired - Fee Related CN203787106U (en) | 2014-04-18 | 2014-04-18 | Conductive film, and capacitive touch panel including same |
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| Country | Link |
|---|---|
| CN (1) | CN203787106U (en) |
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2014
- 2014-04-18 CN CN201420191418.0U patent/CN203787106U/en not_active Expired - Fee Related
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