CN103345333B - Optical filter box and touch display screen using optical filter box - Google Patents
Optical filter box and touch display screen using optical filter box Download PDFInfo
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- CN103345333B CN103345333B CN201310282735.3A CN201310282735A CN103345333B CN 103345333 B CN103345333 B CN 103345333B CN 201310282735 A CN201310282735 A CN 201310282735A CN 103345333 B CN103345333 B CN 103345333B
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Abstract
An optical filter box comprises a substrate, a filtering layer, a first imprinting glue layer, a first conducting layer and a second conducting layer. The filtering layer is directly formed on a first surface of the substrate, the second conducting layer is directly formed on a second surface, and projection of first conducting wires and second conducting wires on the filtering layer all falls onto grid lines. According to the optical filter box, the first conducting layer and the second conducting layer form a sensing structure, and therefore the optical filter box can achieve touch operation and filtering, is beneficial to reducing the thickness of electronic equipment, and saves materials and assembly cost. The first conducting layer is formed in a manner of groove imprinting and conducting material filling, and the second conducting layer is directly formed on the second surface by utilizing good bonding performance of the substrate. Meanwhile, the wire width of the conducting wires can be increased so as to improve conducting performance of the conducting layers. The invention further provides a touch display screen using the optical filter box.
Description
Technical field
The present invention relates to flat panel display technology field, more particularly to a kind of optical filter box and use this optical filtering
The touch display screen of piece assembly.
Background technology
Touch-screen is the inductive arrangement that can receive the input signals such as touch.It is fine that touch-screen imparts information exchange
New looks, are extremely attractive brand-new information exchange equipment.The development of touch screen technology causes domestic
The common concern of external information medium circle, it has also become the Chaoyang new high-tech industry that photovoltaic industry is a dark horse.
At present, the electronic product with touch display function all includes display screen and the touch being located on display screen
Screen.However, touch-screen is as the assembly with display screen independence, in the electronics realizing man-machine interaction for some
During product, it is required to be ordered according to the size of display screen, is assembled afterwards again, shown with being formed to touch
Display screen, touch display screen can have simultaneously can touch control operation and display function.Existing touch-screen and display screen
Assembling mainly have two ways, i.e. frame patch and complete fit.Frame patch is by the edge patch of touch-screen and display screen
Close, full laminating is to fit in whole with the upper surface of display screen for the lower surface of touch-screen face.
Display screen mainly includes polaroid, optical filter box, Liquid Crystal Module and thin film transistor (TFT) (TFT, Thin
Film Transistor), therefore, display screen itself has had larger thickness, and continues the patch toward on display screen
When closing touch-screen, its thickness will be further increased, furthermore, how one attaching process is it is meant that increased
The bad probability of product, greatly increases the production cost of product.
Content of the invention
Based on this it is necessary to for the larger and relatively costly problem of thickness, provide one kind to advantageously reduce electricity
The optical filter box of sub- product thickness and production cost and the touch display screen using this optical filter box.
A kind of optical filter box, including：
Substrate, including first surface and second surface, described first surface and second surface are oppositely arranged；
Filter layer, is arranged at described first surface, including light shielding part and multiple filter unit, described light shielding part
In lattice-shaped, including cross one another gridline, if dry lattice is formed by the space that described gridline is split
Unit, filter unit is contained in grid cell, and the plurality of filter unit forms optical filtering portion；
First impressing glue-line, is arranged at the side away from described first surface for the described filter layer, described first pressure
Print glue-line offers the first groove；
First conductive layer, is embedded at described first impressing glue-line, including multiple spaced first conductive patterns
Case, described first conductive pattern includes the first conductive grid, and described first conductive grid is by the first conductive thread
Intersect to form, the first conductive thread intersects to form grid node, described first conductive thread is described by being filled in
The conductive material of the first groove is formed；
Second conductive layer, is arranged at described second surface, including multiple spaced second conductive patterns,
Described second conductive pattern includes the second conductive grid, and described second conductive grid is intersected by the second conductive thread
Formed；
Wherein, described first conductive thread and the second conductive thread all fully fall in the projection of described filter layer
On described gridline.
Wherein in an embodiment, the live width of described first conductive thread and the second conductive thread is not more than institute
State the live width of gridline.
Wherein in an embodiment, the thickness of described first conductive layer is not more than the depth of described first groove.
Wherein in an embodiment, the thickness in described optical filtering portion is not less than the thickness of described light shielding part.
Wherein in an embodiment, described light shielding part is that the photoresist with black dyes is pressed described first
The lattice-shaped structure that print glue-line is formed.
Wherein in an embodiment, the interval width of two neighboring first conductive pattern of described first conductive layer
Spend for 0.5 μm～50 μm, the interval width of two neighboring second conductive pattern of described second conductive layer is
0.5 μm～50 μm.
Wherein in an embodiment, each described first conductive grid of described first conductive layer is in described filter
Projection on photosphere accommodates at least one filter unit, and each described the second of described second conductive layer is conductive
Projection on described filter layer for the grid accommodates at least one filter unit.
Wherein in an embodiment, each described first conductive grid of described first conductive layer is in described filter
The filter unit number that projection on photosphere accommodates and each described second conductive grid of described second conductive layer exist
The filter unit number that projection on described filter layer accommodates differs.
Wherein in an embodiment, the live width of described first conductive thread is less than described second conductive thread
Live width, the projection on described filter layer of each described first conductive grid of described first conductive layer accommodates
Filter unit number is not more than each described second conductive grid of described second conductive layer on described filter layer
The filter unit number that projection accommodates.
A kind of touch display screen, including the TFT electrode stacking gradually, Liquid Crystal Module, optical filter box and partially
Mating plate, described optical filter box is above-described optical filter box.
Above-mentioned optical filter box and the touch display screen using this optical filter box, optical filter box can be simultaneously real
Existing touch control operation and filtering functions, as the combination of two assemblies indispensable in display screen, for showing
When in screen, can directly make display screen have touch controllable function, a touch-screen need not be assembled again on a display screen, no
Only advantageously reduce the thickness of electronic product, also greatly save material and assembly cost simultaneously.
Brief description
Fig. 1 is the structural representation of the touch display screen of an embodiment；
Fig. 2 is the structural representation of the optical filter box of an embodiment；
Fig. 3 is the structural representation of the optical filter box of another embodiment；
Fig. 4 is the structural representation of the optical filter box of another embodiment；
Fig. 5 is the structural representation of the optical filter box of a further embodiment；
Fig. 6 is the structural representation at another visual angle of optical filter box shown in Fig. 5；
Fig. 7 is the interval schematic diagram of the first conductive pattern or the second conductive pattern in optical filter box；
Fig. 8 is the interval schematic diagram of the first conductive pattern or the second conductive pattern in optical filter box；
Fig. 9 is the structural representation that embodiment first conductive thread or the second conductive thread project to filter layer
Figure；
Figure 10 is another embodiment first conductive thread or the second conductive thread projects to the structure of filter layer and shows
It is intended to；
Figure 11 is another embodiment first conductive thread or the second conductive thread projects to the structure of filter layer and shows
It is intended to；
Figure 12 is that a further embodiment first conductive thread or the second conductive thread project to the structure of filter layer and show
It is intended to.
Specific embodiment
Understandable for enabling the above objects, features and advantages of the present invention to become apparent from, right below in conjunction with the accompanying drawings
The specific embodiment of the present invention is described in detail.Elaborate in the following description a lot of details with
It is easy to fully understand the present invention.But the present invention can be come in fact with being much different from alternate manner described here
Apply, those skilled in the art can doing similar improvement without prejudice in the case of intension of the present invention, therefore this
Bright it is not embodied as being limited by following public.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly another
On individual element or can also there is element placed in the middle.When an element is considered as " connection " another yuan
Part, it can be directly to another element or may be simultaneously present centering elements.
Unless otherwise defined, all of technology used herein and scientific terminology and the technology belonging to the present invention
The implication that the technical staff in field is generally understood that is identical.The art being used in the description of the invention herein
Language be intended merely to describe specific embodiment purpose it is not intended that in limit the present invention.Used herein
Term " and/or " include the arbitrary and all of combination of one or more related Listed Items.
Present invention proposition advantageously reduces the optical filter box of electronic product thickness and production cost and uses this filter
The touch display screen of mating plate assembly.This optical filter box can achieve touch operation and filtering functions, so that touching
Touch display screen and there is touch display function.
Refer to Fig. 1, be the touch display screen 100 of an embodiment, including the down polaroid 10 stacking gradually,
TFT electrode 20, Liquid Crystal Module 30, public electrode 40, diaphragm 50, optical filter box 200 and upper partially
Mating plate 60.In other examples, diaphragm 50 need not be arranged also may be used.
TFT electrode 20 includes glass baseplate 24 and the show electrode 22 being arranged on glass baseplate 24.Liquid crystal
Module includes liquid crystal 32 and the alignment film 34 being held on liquid crystal 32 both sides.
It is appreciated that when backlight being used as polarized light source, such as OLED polarized light source, need not be lower inclined
Mating plate 10 is it is only necessary to upper polaroid 60.The down polaroid 10 of the present embodiment, TFT electrode 20, liquid
Crystal module 30, public electrode 40, diaphragm 50, the structure of upper polaroid 60 and function can be with existing products
Condition is same, will not be described here.
Optical filter box 200 have simultaneously can touch control operation and can filtering functions, so that touch display screen 100 is had
There is touch display function.Touch display screen can be the LCDs of straight-down negative or side entering type light source.
Refer to Fig. 2 to Fig. 5, expression is 200 4 different embodiments of optical filter box.Aforementioned four
Optical filter box 200 in embodiment all includes substrate 210, filter layer 220, first imprints glue-line 230,
First conductive layer 240 and the second conductive layer 260.Wherein substrate 210 includes the first surface 212 being oppositely arranged
With second surface 214.Substrate 210 is transparent insulation material, and such as glass is specifically as follows sillico aluminate glass
With calcium soda-lime glass, after plasma treatment, surface has good cohesive force.General, substrate 210
Thickness range can be 0.1mm～0.5mm.
Filter layer 220 is arranged at first surface 212, including light shielding part 222 and multiple filter unit.Light shielding part
222 is in lattice-shaped, including some cross one another gridlines.Some grid are formed by the space that gridline is split
Lattice unit, filter unit is contained in grid cell.Can a filter unit be contained in a grid cell,
Can also a filter unit be contained in multiple grid cells.Multiple filter units form optical filtering portion 224.One
As, the thickness range in light shielding part 222 and optical filtering portion 224 is 0.5 μm～2 μm.
First impressing glue-line 230 is arranged at the side away from first surface 212 for the filter layer 220, and the first pressure
Print glue-line 230 offers the first groove 232 away from the side of first surface 212.First groove 232 is grid
The groove of shape, mesh shape can be preset to required figure as needed.First conductive layer 240 is embedded at
First impressing glue-line 230, including multiple first conductive patterns 242, is provided between multiple first conductive patterns 242
Interval, so that multiple first conductive pattern 242 insulate.It is conductive that first conductive pattern 242 includes some first
Grid, the first conductive grid is intersected to form by the first conductive thread 2422.First conductive thread 2422 is permissible
Intersect to form grid node, described first conductive thread 2422 is contained in described first groove 232.First leads
Electrical filament line 2422 is formed by the conductive material being filled in the first groove 232, and conductive material can be metal, carbon
At least one in nanotube, Graphene, organic conductive macromolecule and ITO.In other examples,
The first groove 232 can also be offered in the first impressing glue-line 230 near the side of first surface 212.
Second conductive layer 260 is arranged at second surface 214, including multiple second conductive patterns 262.Multiple
It is provided with interval between two conductive patterns 262, so that multiple second conductive pattern 262 mutually insulated.Second is conductive
Pattern 262 includes some second conductive grids, and the second conductive grid is intersected to form by the second conductive thread 2622,
Second conductive thread 2622 of the second conductive pattern 262 and the first conductive thread of the first conductive pattern 242
2422 material is identical.Second conductive thread 2622 can intersect to form grid node.Second conductive layer 260
Second surface 214 is formed at by plated film mode.In other examples, the first of the first conductive layer 240
The material of conductive thread 2422 can also with the material of the second conductive thread 2622 of the second conductive layer 260 not
With.
Wherein first conductive thread 2422 and the second conductive thread 2622 are all whole in the projection of filter layer 220
Fall on gridline.Because light shielding part 222 has opaqueness, so the first conductive thread 2422 and second
Conductive thread 2622 all portions of being blocked block it is achieved that visually-clear, also will not reduce the saturating of optical filtering portion simultaneously
Light rate.
The live width of the first conductive thread 2422 and the second conductive thread 2622 is not more than the width of gridline, that is,
Width less than or equal to gridline.As shown in Fig. 2 the first conductive thread 2422 and the second conductive thread
2622 live width is equal to the width of gridline, to reduce the manufacture difficulty of conductive thread.As shown in figure 3,
In first conductive thread 2422 and the second conductive thread 2622, the live width of any one is less than the width of gridline,
The live width of another one is equal to the width of gridline, is conducive to the optimization of cost of manufacture.As shown in Figure 4 and Figure 5,
The live width of the first conductive thread 2422 and the second conductive thread 2622 is both less than the width of gridline, to reduce
Conductive thread is exposed to the lateral risk of gridline.
Above-mentioned optical filter box 200, the first conductive layer 240 and the second conductive layer 260 constitute capacitive sensing structure,
Make optical filter box 200 can realize touch control operation and filtering functions simultaneously, and design of putting up a bridge need not be carried out, fall
Low task difficulty.When above-mentioned optical filter box 200 is applied to display screen, display screen can be directly made to have
Touch controllable function, need not assemble a touch-screen more on a display screen, not only contribute to reduce the thickness of electronic product,
Also greatly save material and assembly cost.First conductive thread 2322 is imprinted with groove-filling conductive material
Mode obtain, the selectable expanded range of conductive material, the second conductive thread 2622 passes through metal coating side
Formula is formed directly into substrate second surface, make use of substrate 210 to have preferable adhesive property, thus saving
Coating one lamination print glue-line, further reduces the thickness of optical filter box.When the first conductive thread 2422
With the second conductive thread 2622 when the projection of filter layer 220 all fully falls on gridline, because light shielding part
222 have opaqueness, so the first conductive thread 2422 and the second conductive thread 2622 are all blocked portion
222 block it is achieved that visually-clear, also will not reduce the light transmittance in optical filtering portion 224 simultaneously.
The live width of the first conductive thread 2422 and the second conductive thread 2622 is not more than the width of gridline, can
So that the first conductive thread 2422 and the second conductive thread 2622 are without departing from gridline, thus not blocking filter
Photosphere 220, will not reduce the light transmittance of filter layer 220.
Refer to Fig. 5 and Fig. 6, specific in the present embodiment, optical filtering portion 224 is formed by chromatic photoresist, permissible
It is formed with a chromatic photoresist it is also possible to often be formed with a colourama in multiple grid cells in each grid cell
Resistance, chromatic photoresist forms filter unit.Chromatic photoresist is that the photoresist with coloured dye is formed, and can adopt
Use exposure-development processing procedure.Chromatic photoresist is generally red（Red, R）Photoresistance, green（Green, G）Photoresistance or
Blue（Blue, B）Photoresistance, is used for making incident light be transformed into monochromatic light, realizes filtering functions.Light shielding part 222
It is that photoresist with black dyes is formed at the first impressing glue-line 230, and light shielding part 222 is in lattice-shaped, tool
There is opaqueness, exposure-development processing procedure can be adopted.In lattice-shaped, grid cell is square so that optical filtering portion
224 photoresistance arrangement is more compact and uniform.Light shielding part 222 can be prevented effectively from chromatic photoresist colour contamination each other,
And the contrast of R, G, B light can be increased.
Specific in the present embodiment, the material of the first impressing glue-line 230 is solvent-free ultra-violet curing acrylic tree
Fat, thickness range is 2 μm～10 μm.First impressing glue-line 230 is transparence, does not affect overall transmission
Rate.In other embodiments, the material of the first impressing glue-line 230 can also for On Visible Light Cured Resin or
Person's heat reactive resin.
The above-mentioned optical filter box with touch controllable function, specifically manufacturing process is as follows：
（1）Carry out plasma in the first surface 212 of substrate 210 and second surface 214 first（Plasma）
Process.To remove the first surface 212 of substrate 210 and the dirty of second surface 214, and make first surface
212 and second surface 214 ionize, increase follow-up and other materials cohesive forces.
（2）In second surface 214 whole face metal cladding or the painting layer of metal conductive ink of substrate 210,
To form the second conductive layer 260.The metal that the present embodiment adopts is argent.In other examples, also
Can be using as at least one in the metal such as gold, copper, aluminium, zinc, tin, molybdenum.
（3）It is coated with one layer of photoresist on the surface of the second conductive layer 260, through exposure-development technology, only protect
Stay the photoresist being covered in the second conductive pattern 262 part, the photoresist of other parts is removed.
（4）Using metal etch liquid, the second conductive layer 260 is etched, obtain desirable pattern second is led
Electrical pattern 262 part, the second conductive pattern 262 includes the second conductive grid, and the second conductive grid is by intersecting
The second conductive thread 2622 formed.
（5）In the whole face of first surface 212 of substrate 210, one layer of photoresist carrying black dyes is set.
（6）Using exposure-development technology, the photoresist in filter unit region is removed, form the screening of lattice-shaped
Light portion 222.Light shielding part 222 includes some gridlines, if forming dry lattice list by the space that gridline is split
Unit.
（7）In grid cell, R/G/B chromatic photoresist is set by several times, forms optical filtering portion 224.
（8）In filter layer 220 away from the side coating impressing glue of first surface 212, form the first impressing glue
Layer 230.The present embodiment adopts solvent-free ultra-violet curing acryl resin.And with embedding with the first conductive pattern 242
The impression block of set is imprinted and is solidified on the first impressing glue-line 230 surface, obtains required leading with first
First groove 232 of electrical pattern 242 coupling.
（9）Fill conductive material simultaneously and consolidate into the first groove 232 mating with the first conductive pattern 242
Change, obtain the first conductive layer 240.First conductive layer 240 includes multiple spaced first conductive patterns
242, the first conductive pattern 242 includes the first conductive grid being intersected to form by the first conductive thread 2422.
Conductive material includes in metal, CNT, Graphene, organic conductive macromolecule and ITO at least one
Kind, formed and the first conductive grid constituting is intersected by the first conductive thread 2422.It is preferably metal, such as nanometer
Silver paste.When from metal, it is possible to decrease resistance and the energy consumption reducing touch display screen.First conductive thread
2422 and second conductive thread 2622 all fully fall on gridline in the projection of filter layer 220.
At least one and described filter unit phase each other in described first conductive grid and described second conductive grid
Like figure, in the first conductive thread 2422 and the second conductive thread 2622, the center line of at least one is described
The projection of filter layer 220 is overlapped with the center line of described gridline.I.e. the first conductive thread 2422 and second is led
Electrical filament line 2622 positive alignment gridline.Conductive grid intersects to form for conductive thread, and grid cell is gridline
Segmentation is formed, and filter unit is formed at grid cell.So in the present embodiment, conductive mesh can be made
The shape of lattice is identical with the shape of filter unit but of different sizes, and that is, conductive grid is similar each other to filter unit
Figure, ensures the projection in filter layer 220 for the conductive grid without departing from gridline simultaneously.If being not particularly illustrated
The first conductive thread or the second conductive thread, conductive thread herein may refer to the first conductive thread and/or
Second conductive thread.Conductive grid may refer to the first conductive grid and/or the second conductive grid.Conductive pattern
May refer to the first conductive pattern and/or the second conductive pattern.
Refer to Fig. 5, specific in the present embodiment, the first conductive thread 2422 and the second conductive thread 2622
Center line all overlap with the center line of gridline in the projection of filter layer 220.Further reduce first to lead
Electrical filament line 2422 and the second conductive thread 2622 expose the probability of gridline region.Certainly, in other realities
Apply in example, can also in the first conductive thread 2422 and the second conductive thread 2622 any one just to gridline,
In addition one meets the scope projecting without departing from gridline in filter layer 220, due to the first conductive layer
240 and second conductive layer 260 blocked by gridline in the backlight exit direction of display screen, be not in
Conductive grid on one conductive layer 240 and the second conductive layer 260 was superimposed with the grid cycle of louver (-vre), because
This, effectively prevent Moire fringe phenomenon.
The thickness of described first conductive layer 240 is not more than the depth of described first groove 232.Specific to this reality
Apply in example, the thickness of the first conductive layer 240 is less than the thickness of the first groove 232, the depth of the first groove 232
Degree is less than the thickness of the first impressing glue-line 230.In subsequent technique after can preventing the first conductive layer 240 from being formed
In be scraped off.
Refer to Fig. 5 and Fig. 6, specific in the present embodiment, the thickness in optical filtering portion 224 is not less than light shielding part
222 thickness.In other words the thickness of filter unit is more than or equal to the thickness of gridline.When optical filtering portion
When 224 thickness is more than the thickness of light shielding part 222, the light appearing from optical filtering portion 224, not only permissible from front
See, from side it can be seen that, such that it is able to increase the light emission rate in optical filtering portion 224.
Specific in the present embodiment, adjacent conductive pattern setting is spaced, with mutually insulated.As Fig. 7 and Fig. 8
Shown, it is in the first conductive layer 240 and the second conductive layer 260 between multiple conductive patterns of either conductive layer
Every different modes schematic diagram.Two neighboring conductive pattern in first conductive layer 240 and the second conductive layer 260
The interval width of case can be all the width of a filter unit.Now can be lacked by full line or permutation conductive thread
Lose, separated.Two neighboring conductive pattern in acceptable first conductive layer 240 and the second conductive layer 260
The interval width scope of case is 0.5 μm～50 μm.Now can by by conductive thread marginal portion lack into
Row cut-off.In other embodiments it is also possible in one layer of conductive layer two adjacent conductive patterns interval width
Scope is the width of a filter unit, and in another layer of conductive layer, the interval width scope of two adjacent conductive patterns is
0.5 μm～50 μm.
Refer to Fig. 6, specific in the present embodiment, the first conductive thread 2422 and the second conductive thread 2622
Straight line, curve or broken line.First conductive thread 2422 and the second conductive thread 2622 can be different shape
When, reduce production requirement.
As shown in figure 9, projection on filter layer 220 for every one first conductive grid of the first conductive layer 240
Accommodate a filter unit, every one second conductive grid of the second conductive layer 260 is on filter layer 220
Projection accommodates a filter unit.Because the first conductive thread 2422 and the second conductive thread 2622 all with
Gridline is aligned, so the filter unit accommodating is integer, in this enforcement row, quantity is one.Because
, to there being a conductive grid, so the density of conductive grid is larger, electric conductivity is relatively for each grid cell
Good.
As shown in Figure 10 to Figure 12, every one first conductive grid of the first conductive layer 240 is in filter layer 220
On projection accommodate at least two filter units, every one second conductive grid of the second conductive layer 260 is in filter
Projection on photosphere 220 accommodates at least two filter units.Because the first conductive thread 2422 and second is led
Electrical filament line 2622 is all aligned with gridline, so the filter unit accommodating is integer, quantity is at least two,
The optical filtering list that accommodates can be determined according to the requirement of the coating weight to the resistance requirement of conductive layer and conductive material
First quantity.
Three kinds of situations now can be divided into, with laterally as X-axis, the direction of vertical transverse is Y-axis.As Figure 10
Shown, only in the X-axis direction, each conductive grid of the first conductive layer 240 and the second conductive layer 260 exists
Projection on filter layer 220 accommodates at least two filter units.As shown in figure 11, only in the Y-axis direction,
Projection on filter layer 220 for each conductive grid of the first conductive layer 240 and the second conductive layer 260 accommodates
At least two filter units.As shown in figure 12, simultaneously in X-axis and Y direction, the first conductive layer 240
Single with projection receiving at least two optical filtering on filter layer 220 for each conductive grid of the second conductive layer 260
Unit.
Specific in the present embodiment, every one first conductive grid of the first conductive layer 240 is on filter layer 220
Projection accommodate filter unit number and the second conductive layer 260 every one second conductive grid in filter layer 220
On projection accommodate filter unit number can differ.Manufacture difficulty can effectively be reduced.Certainly, at it
In his embodiment, the projection on filter layer 220 of every one first conductive grid of the first conductive layer 240 is held
The projection on filter layer 220 of the filter unit number received and every one second conductive grid of the second conductive layer 260
The filter unit number accommodating can also be identical.
The live width of the first conductive thread 2422 is less than the live width of the second conductive thread 2622.Definition by resistance
Understand, resistance is directly proportional to length, is inversely proportional to cross-sectional area.So being also inversely proportional to live width, work as live width
When wider, resistance is bigger.So the resistance of the first conductive thread 2422 is less than the second conductive thread 2622
Live width.The optical filtering that projection on filter layer 220 for every one first conductive grid of the first conductive layer 240 accommodates
Projection on filter layer 220 for every one second conductive grid of unit number no more than the second conductive layer 260 accommodates
Filter unit number.I.e. the mesh-density of the first conductive layer 240 is more than the mesh-density of the second conductive layer 260,
Now the resistance of the first conductive layer 240 is more than the resistance of the second conductive layer 260.In sum, first is led
The live width of electrical filament line 2422 is set smaller than the live width of the second conductive thread 2622, the first conductive layer 240
The filter unit number that projection on filter layer 220 for every one first conductive grid accommodates is not more than the second conductive layer
The filter unit number that projection on filter layer 220 for 260 every one second conductive grid accommodates, so that first leads
The resistance of electric layer 240 and the second conductive layer 260 will not be too wide in the gap.
Embodiment described above only have expressed the several embodiments of the present invention, and its description is more concrete and detailed,
But therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for this area
Those of ordinary skill for, without departing from the inventive concept of the premise, can also make some deformation and
Improve, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with appended
Claim is defined.
Claims (8)
1. a kind of optical filter box is it is characterised in that include：
Substrate, including first surface and second surface, described first surface and second surface are oppositely arranged；
Filter layer, is arranged at described first surface, including light shielding part and multiple filter unit, described light shielding part
In lattice-shaped, including cross one another gridline, if dry lattice is formed by the space that described gridline is split
Unit, filter unit is contained in grid cell, and the plurality of filter unit forms optical filtering portion；
First impressing glue-line, is arranged at the side away from described first surface for the described filter layer, described first pressure
Print glue-line offers the first groove away from the side of described first surface；
First conductive layer, is embedded at described first impressing glue-line, including multiple spaced first conductive patterns
Case, described first conductive pattern includes the first conductive grid, and described first conductive grid is by the first conductive thread
Intersect to form, described first conductive thread is formed by the conductive material being filled in described first groove；
Second conductive layer, is attached directly to described second surface, including multiple spaced second conductive patterns
Case, described second conductive pattern includes the second conductive grid, and described second conductive grid is by the second conductive thread
Intersect to form；
Wherein, described first conductive pattern and the second conductive pattern are formed in the thickness direction insulation of described substrate
Inductance and Capacitance, described first conductive thread and the second conductive thread all fully fall in the projection of described filter layer
On described gridline, the live width of described first conductive thread is less than the live width of described second conductive thread, described
The filter unit number that projection on described filter layer for each described first conductive grid of the first conductive layer accommodates
Less than described second conductive layer each described second conductive grid on described filter layer projection accommodate filter
Light unit number.
2. optical filter box according to claim 1 it is characterised in that described first conductive thread and
The live width of the second conductive thread is not more than the live width of described gridline.
3. optical filter box according to claim 1 is it is characterised in that the thickness of described first conductive layer
Degree is not more than the depth of described first groove.
4. optical filter box according to claim 1 it is characterised in that the thickness in described optical filtering portion not
Thickness less than described light shielding part.
5. optical filter box according to claim 1 is it is characterised in that described light shielding part is with black
The lattice-shaped structure that the photoresist of color dyestuff is formed in the described first impressing glue-line.
6. optical filter box according to claim 1 is it is characterised in that the phase of described first conductive layer
The interval width of adjacent two the first conductive patterns is 0.5 μm～50 μm, two neighboring the of described second conductive layer
The interval width of two conductive patterns is 0.5 μm～50 μm.
7. optical filter box according to claim 1 it is characterised in that described first conductive layer every
Projection on described filter layer for first conductive grid described in one accommodates at least one filter unit, and described
Projection on described filter layer for each described second conductive grid of two conductive layers accommodates at least one optical filtering
Unit.
8. a kind of touch display screen it is characterised in that include stack gradually TFT electrode, Liquid Crystal Module,
Optical filter box and polaroid, described optical filter box is the filter in claim 1 to 7 described in any one
Mating plate assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310282735.3A CN103345333B (en) | 2013-07-05 | 2013-07-05 | Optical filter box and touch display screen using optical filter box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310282735.3A CN103345333B (en) | 2013-07-05 | 2013-07-05 | Optical filter box and touch display screen using optical filter box |
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| CN101467119A (en) * | 2006-06-09 | 2009-06-24 | 苹果公司 | Touch screen liquid crystal display |
| CN102903423A (en) * | 2012-10-25 | 2013-01-30 | 南昌欧菲光科技有限公司 | Conduction structure in transparent conduction film, transparent conduction film and manufacture method thereof |
| CN103135292A (en) * | 2011-11-30 | 2013-06-05 | 乐金显示有限公司 | Liquid crystal display device having touch screen |
| CN103163676A (en) * | 2012-09-26 | 2013-06-19 | 敦泰科技有限公司 | Liquid crystal display touch screen integrating single layer capacitance transducer and application device thereof |
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| US8692948B2 (en) * | 2010-05-21 | 2014-04-08 | Apple Inc. | Electric field shielding for in-cell touch type thin-film-transistor liquid crystal displays |
| KR20110135131A (en) * | 2010-06-10 | 2011-12-16 | 엘지디스플레이 주식회사 | Liquid crystal display device having touch sensing function |
| KR101799031B1 (en) * | 2010-08-09 | 2017-12-21 | 삼성디스플레이 주식회사 | Liquid crystal display including touch sensor layer and method thereof |
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| CN101467119A (en) * | 2006-06-09 | 2009-06-24 | 苹果公司 | Touch screen liquid crystal display |
| CN103135292A (en) * | 2011-11-30 | 2013-06-05 | 乐金显示有限公司 | Liquid crystal display device having touch screen |
| CN103163676A (en) * | 2012-09-26 | 2013-06-19 | 敦泰科技有限公司 | Liquid crystal display touch screen integrating single layer capacitance transducer and application device thereof |
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Effective date of registration: 20210302 Address after: 231323 Building 1, precision electronics industrial park, Hangbu Town, Shucheng County, Lu'an City, Anhui Province Patentee after: Anhui jingzhuo optical display technology Co.,Ltd. Address before: 330000 Huangjiahu Road, Nanchang Economic and Technological Development Zone, Jiangxi Province Patentee before: Nanchang OFilm Tech. Co.,Ltd. |