CN103345327B - Touch display screen and optical filter box thereof - Google Patents
Touch display screen and optical filter box thereof Download PDFInfo
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- CN103345327B CN103345327B CN201310282558.9A CN201310282558A CN103345327B CN 103345327 B CN103345327 B CN 103345327B CN 201310282558 A CN201310282558 A CN 201310282558A CN 103345327 B CN103345327 B CN 103345327B
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Abstract
A kind of optical filter box, including substrate, impressing glue-line, conductive layer and filter layer, substrate includes that relative first surface and second surface, impressing glue-line cover the first surface in substrate；Conductive layer is embedded at the side of impressing glue-line, including the first conductive pattern and the second conductive pattern and spaced formation induction structure, including the conductive grid being made up of conductive thread, filter layer covers in the side of impressing glue-line, including light shielding part and optical filtering portion, light shielding part is lattice-shaped, including cross one another gridline and multiple grid cell, optical filtering portion includes that multiple filter unit, each filter unit are contained in accordingly in a grid cell；Conductive layer is between impressing glue-line and light shielding part；Above-mentioned optical filter box, can have again filtering functions by touch control operation, advantageously reduce the thickness of electronic product, also a saving material and assembly cost.There is provided one to touch display screen simultaneously.
Description
Technical field
The present invention relates to technical field of touch control, particularly relate to a kind of touch display screen and optical filter box thereof.
Background technology
Touch screen is the inductive arrangement that can receive the input signals such as touch.It is the finest that touch screen imparts information
New looks, are extremely attractive brand-new information interactive devices.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 positioned on display screen
Screen.But, touch screen is as the assembly with display screen independence, at the electronics realizing man-machine interaction for some
During product, it is required to the size according to aobvious screen and orders, assemble the most again.Existing touch screen with
The assembling of display screen mainly has two ways, i.e. frame paste and entirely fit.Frame patch is by touch screen and display screen
Fitting in edge, full laminating is by whole of the upper surface laminating of the lower surface of touch screen Yu display screen.
Polaroid that display screen mainly includes being sequentially overlapped, optical filter box, protecting film, Liquid Crystal Module and
Thin film transistor (TFT) (Thin Film Transistor, TFT), therefore, display screen itself has had bigger thickness
Degree, and when continuing laminating touch screen on display screen, its thickness be will be further increased, furthermore, many patches together
Close technique, it is meant that add the probability that product is bad, be greatly increased the production cost of product.
Summary of the invention
Based on this, it is necessary to for the problem that thickness is bigger and relatively costly, it is provided that one advantageously reduces electricity
The touch display screen of sub-product thickness and production cost and optical filter box thereof.
A kind of optical filter box, including:
Substrate, including relative first surface and second surface；
Impressing glue-line, covers in the first surface of described substrate, and described impressing glue-line is away from the one of described substrate
Side offers the first groove and the second groove；
Conductive layer, is embedded at the described impressing glue-line side away from described substrate, and described conductive layer includes first
Conductive pattern and the second conductive pattern, described first conductive pattern and the second conductive pattern are at described impressing glue-line
Plane development direction spaced, described first conductive pattern and described second conductive pattern all include by leading
Electrical filament line intersect formed conductive grid, conductive thread intersects to form grid node, described conductive grid
Including multiple grid cells, described first conductive pattern is spaced with described second conductive pattern forms sensing
Structure, the conductive thread of described first conductive pattern is contained in described first groove, described second conductive pattern
Conductive thread be contained in the second described groove；
Filter layer, covers in described impressing glue-line away from the side of described substrate, and described filter layer includes shading
Portion and optical filtering portion, described light shielding part is lattice-shaped, including cross one another gridline and multiple grid cell,
Described optical filtering portion includes that multiple filter unit, each described filter unit are contained in grid list described in corresponding one
In unit, described conductive layer is between described impressing glue-line and described light shielding part.
Wherein in an embodiment, the conductive thread of described first conductive pattern and leading of the second conductive pattern
Electrical filament line the most all falls within described gridline in the projection of described filter layer.
Wherein in an embodiment, the live width of described conductive thread is 0.2um-5um, two adjacent grids
Spacing between node is 30um-500um.
Wherein in an embodiment, the conductive thread of described first conductive pattern and leading of the second conductive pattern
The live width of electrical filament line is no more than in the live width of described gridline.
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, including filling and leading up layer, cover and be provided with described conductive layer in described impressing glue-line
Side, described in fill and lead up layer between described impressing glue-line and described filter layer.
Wherein in an embodiment, the conductive thread of described first conductive pattern and the second conductive pattern is respectively
It is to be solidify to form by the conductive material being filled in described first groove and the second groove, described conductive material bag
Include at least one in metal, CNT, Graphene, tin indium oxide and conducting polymer.
Wherein in an embodiment, between adjacent described first conductive pattern and described second conductive pattern
Interval width be 0.5～50 μm.
Wherein in an embodiment, described first conductive pattern and described second conductive pattern each described
A described filter unit is at least accommodated in the range of grid cell.
A kind of touch display screen, including the TFT electrode stacked gradually, Liquid Crystal Module, described filter set
Part and polaroid.
Above-mentioned touch display screen and optical filter box thereof, optical filter box can realize touch control operation and optical filtering simultaneously
Function, as an assembly indispensable in display screen, time in display screen, can directly make display screen
There is touch controllable function, it is not necessary to assemble a touch screen the most on a display screen, not only contribute to reduce electronic product
Thickness, is the most also greatly saved material and assembly cost.Additionally, utilize the preparation of above-mentioned optical filter box to touch
When touching display screen, can reduce by an attaching process, thus also can save material and improve production efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation touching 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 be an embodiment conductive layer between the first conductive pattern, the first conductive pattern and the second conduction
Interval schematic diagram between pattern；
Fig. 8 be another embodiment conductive layer between the first conductive pattern, the first conductive pattern and second leads
Interval schematic diagram between electrical pattern；
Fig. 9 is grid cell and the grid cell structural representation one to one in light shield layer of conductive grid；
Figure 10 is the knot that the grid cell of the conductive grid of an embodiment is corresponding with the grid cell in light shield layer
Structure schematic diagram；
Figure 11 is that the grid cell of the conductive grid of another embodiment is corresponding with the grid cell in light shield layer
Structural representation；
Figure 12 is that the grid cell of the conductive grid of another embodiment is corresponding with the grid cell in light shield layer
Structural representation；
Figure 13 is the schematic flow sheet of the optical filter box preparation method of an embodiment；
Figure 14 is the schematic flow sheet forming light shielding part of an embodiment.
Detailed description of the invention
For enabling the above-mentioned purpose of touch display screen and optical filter box thereof, feature and advantage to become apparent from easily
Understand, below in conjunction with the accompanying drawings the detailed description of the invention touching display screen and optical filter box thereof is described in detail.
Elaborate a lot of detail in the following description so that fully understanding touch display screen and filter set thereof
Part.But touch display screen and optical filter box can be to be much different from alternate manner described here
Implementing, those skilled in the art can be in the case of touch display screen and optical filter box intension thereof
Do similar improvement, therefore touch display screen and optical filter box is not limited by following public being embodied as.
It should be noted that when element is referred to as " being fixed on " another element, and it can be directly at another
On individual element or element placed in the middle can also be there is.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.Touching display screen and optical filter box thereof herein
Term used in the description is intended merely to describe the purpose of specific embodiment, it is not intended that in limiting this
Invention.Term as used herein "and/or" includes the arbitrary of one or more relevant Listed Items
With all of combination.
The present invention proposes advantageously reduce the optical filter box of electronic product thickness and production cost and use this filter
The touch display screen of mating plate.This optical filter box can realize touch operation and display function, so that touching aobvious
Display screen has touch display function.
Refer to Fig. 1, be the touch display screen 100 of an embodiment, including the lower polaroid 10 stacked gradually,
TFT electrode 20, Liquid Crystal Module 30, public electrode 40, protecting film 50, optical filter box 200 and upper partially
Mating plate 60.In other embodiments, it is not necessary to protecting film 50 is set and also may be used.
TFT electrode 20 includes glass-base 24 and the show electrode 22 being arranged on glass-base 24.Liquid crystal
Module includes liquid crystal 32 and is held on the alignment film 34 of liquid crystal 32 both sides.
It is appreciated that when use backlight is as polarized light source, such as OLED polarized light source, it is not necessary to lower inclined
Mating plate 10, it is only necessary to upper polaroid 60.The lower polaroid 10 of the present embodiment, TFT electrode 20, liquid
Crystal module 30, public electrode 40, protecting film 50, the structure of upper polaroid 60 and function can be with existing products
Condition is same, does not repeats them here.In other embodiments, it is also possible to be not provided with protecting film 50.
Touch display screen 100 have simultaneously tangible operation and can filtering functions, make display screen have touch aobvious
Show function.Touching display screen 100 can be straight-down negative or the LCDs of side entering type light source.
Referring to Fig. 2 to Fig. 5, expression is four kinds of different embodiments of optical filter box 200.Above-mentioned
Optical filter box 200 in four kinds of different embodiments all includes substrate 210, impressing glue-line 220, conduction
Layer 230 and filter layer 240.The material of substrate 210 can be sillico aluminate glass and calcium soda-lime glass, passes through
Plasma processes rear surface and has good cohesive force.General, the thickness range of substrate 210 can be
0.1mm～0.5mm, substrate 210 includes relative first surface 212 and second surface 214.
Impressing glue-line 220 covers the first surface 212 in substrate 210, second surface 214 court of substrate 210
Upwards polaroid 60, towards the side of user, impressing glue-line 220 offers the away from the side of substrate 210
One groove 222 and the second groove 224.The material of impressing glue-line 220 can be ultraviolet cured adhesive
(uitraviolet, UV), light binding, hot-setting adhesive or from dry glue etc., in the present embodiment impressing glue-line 220
The material used is solvent ultra-violet curing acryl resin, and the material of impressing glue-line 220 is transparent, not shadow
Ring the integral light-transmitting rate of this touch display screen 100.
Conductive layer 230 is embedded at impressing glue-line 220 away from the side of substrate 210, and conductive layer 230 includes the
One conductive pattern 232 and the second conductive pattern 234, the first conductive pattern 232 and the second conductive pattern 234 exist
The plane development direction of impressing glue-line 220 is spaced, the first conductive pattern 232 and the second conductive pattern 234
All including being intersected the conductive grid formed by conductive thread a, conductive thread a intersects to form grid node,
Conductive grid includes multiple grid cell, and the first conductive pattern 232 is spaced with the second conductive pattern 234
Forming induction structure, the conductive thread a of the first conductive pattern 232 is contained in the first groove 222, the second conduction
The conductive thread a of pattern 234 is contained in the second groove 224.
Filter layer 240 covers in imprinting the glue-line 220 side away from substrate 210.Filter layer 240 includes hiding
Light portion 242 and optical filtering portion 244, light shielding part 242 is in lattice-shaped, including cross one another gridline and multiple grid
Lattice unit.Light shielding part 242 has opaqueness.Optical filtering portion 244 includes multiple filter unit, each optical filtering
Unit housing is in a grid cell accordingly；Conductive layer 230 is positioned at impressing glue-line 220 and light shielding part 242
Between.The conductive thread a of the first conductive pattern 232 and conductive thread a of the second conductive pattern 234 is described
The projection of filter layer 240 the most all falls within described gridline.As in figure 2 it is shown, represent is the first conduction
The live width of the conductive thread a of pattern 232 and the second conductive pattern 234 is equal to the optical filtering during width of gridline
Chip module 200.As shown in Fig. 3, Fig. 4 and Fig. 5, expression is the first conductive pattern 232 and the second conduction
The live width of the conductive thread a of pattern 234 is respectively less than the optical filter box 200 during the width of gridline.Conductive filament
The live width of line a is not more than the width of gridline so that conductive thread a complete just to being covered in light shielding part 242
Region in, without because partially electronically conductive silk thread a fall in filter unit region, it is to avoid conductive thread a is to filter
The chromatic photoresist of light unit forms shading, to avoid affecting the light emission rate of filter unit, improves Consumer's Experience sense.
Additionally, due to conductive thread a is blocked, the width requirement hence for conductive thread a is the highest, is i.e. not more than
The width of gridline.Therefore, can make (the thinnest without doing) easy to make, and wider conductive thread a
Not easy fracture, and then the reliability of conductive layer 230 can be promoted.Specifically, the live width of conductive thread a is 0.2
Um～5um, the adjacent spacing between two grid nodes is 30um-500um.
Above-mentioned optical filter box 200, the first conductive pattern 232 and the second conductive pattern 234 interval are arranged, structure
Become capacitive sensing structure, make optical filter box 200 can realize touch control operation and filtering functions simultaneously, and without
Carry out design of putting up a bridge, reduce task difficulty.When above-mentioned optical filter box 200 is applied to display screen, can
Directly make display screen have touch controllable function, it is not necessary to assemble a touch screen the most on a display screen, not only contribute to fall
The thickness of low electronic product, is also greatly saved material and assembly cost.Optical filter box 200 is applied to produce
During product, usually the second surface 214 of substrate 210 is towards eyes of user side, and filter layer 240 is positioned at
Away from eyes of user side, so when conductive layer 230 is between filter layer 240 and substrate 210, as long as
Ensure that the live width of conductive thread a is not more than the live width of gridline, the light transmission in optical filtering portion 244 would not be affected,
Because being directly blocked portion 242 from the light of lower polaroid 10 direction projection to shelter from, and light shielding part 242 having
Opaqueness.
Referring to Fig. 5 and Fig. 6, specific in the present embodiment, optical filtering portion 244 includes multiple filter unit.Filter
Light unit is the chromatic photoresist of printing opacity, be specially with coloured dye photoresist formed, can use exposure-
Developing manufacture process.Described filter unit the reddest (red, R) photoresistance, green (green, G) photoresistance or indigo plant (blue,
B) photoresistance, is used for making incident illumination be transformed into monochromatic light, it is achieved filtering functions.Light shielding part 242 is with black
The photoresist of dyestuff is formed at impressing glue-line 220 and is provided with the surface of conductive layer 230, and light shielding part 242 is in grid
Trellis, has opaqueness, can use exposure-development processing procedure.In lattice-shaped, grid cell is square, makes
The photoresistance arrangement in portion 244 of must filtering is more compact uniformly, and can increase the contrast of R, G, B light.Shading
Portion 242 can be prevented effectively from chromatic photoresist colour contamination each other.
Referring to Fig. 6, specific in the present embodiment, conductive thread a is straight line, curve or broken line.Conductive filament
Line a, without given shape requirement, advantageously reduces production requirement, simultaneously when conductive thread a is curve or broken line,
Serious Moire fringe can also be avoided, improve Consumer's Experience sense further.
The thickness in optical filtering portion 244 is not less than the thickness of light shielding part 242.I.e. the thickness of filter unit more than or
Thickness equal to gridline.As shown in Fig. 2, Fig. 3 and Fig. 5, expression is to filter in optical filter box 200
The thickness in portion 244 is equal to the thickness of light shielding part 242.As shown in Figure 4, expression is optical filter box 200
The thickness in middle optical filtering portion 244 is more than the thickness of light shielding part 242.When the thickness in optical filtering portion 244 is more than light shielding part
242 thickness time, the light appeared from optical filtering portion 244, not only from front it will be seen that from side it can be seen that,
Such that it is able to increase the light emission rate in optical filtering portion 244.
Specific in the present embodiment, the thickness of the first conductive pattern 232 less than the first groove 222 the degree of depth,
The thickness of the second conductive pattern 234 is less than the degree of depth of the second groove 224.Be conducive to impressing glue-line 220 to the
Conductive thread a in one conductive pattern 232 and the second conductive pattern 234 forms protection.Described first groove
222 and second groove 224 the degree of depth less than impressing glue-line 220 thickness.Prevent impressing mould pressure from wearing impressing glue
Layer 220 and damage substrate 210.
The grid cell of one and optical filtering at least within first conductive pattern 232 and the second conductive pattern 234
Unit similar fitgures each other, at least one conductive pattern in the first conductive pattern 232 and the second conductive pattern 234
The centrage of conductive thread a overlap with the centrage of gridline in the projection of filter layer 240.I.e. conductive filament
Line a is just to gridline.Conductive grid is that conductive thread a intersects to form, and grid cell is that gridline splits institute's shape
Become, and filter unit is formed at grid cell.So the shape of conductive grid in the present embodiment, can be made
Identical with the shape of filter unit but vary in size, i.e. conductive grid and filter unit similar fitgures each other, with
Time ensure conductive thread a without departing from gridline.Specific in the present embodiment, the first conductive pattern 232 and
The centrage of the conductive thread a of two conductive patterns 234 filter layer 240 projection all with the center of gridline
Line overlaps.Further reduce conductive thread a and expose the probability of gridline region.Certainly, in other reality
Execute in example, it is also possible to the centrage of conductive thread a of arbitrary conductive pattern overlaps with the centrage of gridline.
Specific in the present embodiment, the conductive thread a of the first conductive pattern 232 and the second conductive pattern 234
Conductive thread a is by the conductive material solidification shape being filled in the first groove 222 and the second groove 224 respectively
Becoming, conductive material can be in metal, CNT, Graphene, organic conductive macromolecule and ITO
Any one.Therefore, when forming conductive layer 230, mould one-shot forming can be imprinted with, preset
Pattern, and patterned etch need not be passed through, thus simple flow.Especially when using ITO as conduction material
During material, owing to without etching, therefore decreasing waste of material and then cost-effective.Use the first groove 222
With the second groove 224 to form conductive layer 230, make conductive material be not limited to traditional ITO, thus increase
The selection face of conductive material.
Specific in the present embodiment, adjacent conductive patterns arranges interval, with mutually insulated.As it is shown in fig. 7,
Represent be the interval width between the first conductive pattern 232 and the second conductive pattern 234 be a filter unit
Width.Now can be lacked by full line or permutation conductive thread a and cut off.As shown in Figure 8, table
Showing, the adjacent interval width between the first conductive pattern 232 and the second conductive pattern 234 can be reasonable
It is set to 0.5～50 μm, the interval width between adjacent first conductive pattern 232 and the second conductive pattern 234
It is 0.5～50 μm.Now can be by the marginal portion of conductive thread a disappearance be cut off.
At least accommodate in the range of each grid cell of the first conductive pattern 232 and the second conductive pattern 234
There is a filter unit.As it is shown in figure 9, the first conductive pattern 232 and the second conductive pattern 234 is each
A filter unit is accommodated in the range of grid cell.Because the first conductive pattern 232 and the second conductive pattern
The conductive thread a of case 234 is all embedded in gridline, so the filter unit accommodated is integer, and quantity
It it is one.Because each grid cell is to there being a conductive grid, so the density of conductive grid is relatively big,
Electric conductivity is preferable.
As shown in Figure 10 to Figure 12, each conductive mesh of the first conductive pattern 232 second conductive pattern 234
Lattice accommodate at least two filter unit.Because leading of the first conductive pattern 232 and the second conductive pattern 234
Electrical filament line a is all embedded in gridline, so the filter unit accommodated is integer, quantity is at least two.
Now can be divided into three kinds of situations, with laterally as X-axis, the direction of vertical transverse is Y-axis.Such as Figure 10
Shown in, the most in the X-axis direction, the first conductive pattern 232 and each conductive mesh of the second conductive pattern 234
Lattice accommodate at least two filter unit.As shown in figure 11, the most in the Y-axis direction, the first conductive pattern 232
At least two filter unit is accommodated with each conductive grid of the second conductive pattern 234.As shown in figure 12, same
Time in X-axis and Y direction, the first conductive pattern 232 and each conductive mesh of the second conductive pattern 234
Lattice accommodate at least two filter unit.
Additionally, also provide for a kind of optical filter box 200 preparation method.
Referring to Figure 13, in one embodiment, optical filter box 200 preparation method includes step
S110～S150:
Step S110 a, it is provided that substrate 210, including relative first surface 212 and second surface 214.
Substrate 210 carrying and protective effect, and light-permeable.The material of substrate 210 and functioning as described above,
Therefore do not repeat them here.Before carrying out subsequent step, also substrate 210 can be carried out plasma (Plasma) pre-
Process, to remove the dirty of substrate 210 surface, and make substrate 210 surface ionizing, increase follow-up and pressure
The cohesive force of print glue-line 220.
Step S120, coating impressing glue, in the first surface 212 of described substrate 210, forms impressing glue-line 220.
Impressing glue is transparence.In the present embodiment, the material of impressing glue is solvent-free ultra-violet curing acryl resin.
It is pointed out that in other embodiments, impressing glue material can also be On Visible Light Cured Resin, thermosetting
Change resin etc..
Step S130, imprints the described impressing glue-line 220 side away from described substrate 210, forms first recessed
Groove 222 and the second groove 224, described first groove 222 and described second groove 224 interval are arranged.First
Groove 222 and the second groove 224 are the groove of reservation shape, i.e. can be preset to required figure as required.
Specifically, on impressing glue-line 220 surface relative with substrate 210 with the first conductive pattern 232 and second
The impression formboard of conductive pattern 234 correspondence imprints, and ultraviolet (UV) solidification, obtains leading with first
First groove 222 of electrical pattern 232 coupling, the second groove 224 mated with the second conductive pattern 234.
Step S140, lays conductive layer 230, in described first groove 222 and described second groove 224
Fill conductive material and make it be cured to form conductive layer 230, being contained in the conduction material of described first groove 222
Material solidify to form the first conductive pattern 232, is contained in the conductive material of described second groove 224 and solidify to form the
Two conductive patterns 234.
Specifically, conductive material can be metal, CNT, Graphene, organic conductive macromolecule and
Any one in ITO, therefore, when forming conductive layer 230, can be imprinted with mould one-shot forming,
To the pattern preset, and patterned etch need not be passed through, thus simple flow.Especially when using ITO conduct
During conductive material, owing to without etching, therefore decreasing waste of material and then cost-effective.Use first recessed
Groove 222 and the second groove 224, to form conductive layer 230, make conductive material be not limited to traditional ITO, from
And add the selection face of conductive material.
This conductive material forms the conductive grid being made up of conductive thread a intersection.It is preferably metal, such as nanometer
Silver slurry.When selecting metal, it is possible to decrease resistance and reduction touch the energy consumption of display screen.First conductive pattern
The conductive thread a of 232 is contained in the first groove 222, and the conductive thread a of the second conductive pattern 234 is contained in
Second groove 224.First groove 222 and the second groove 224 interval are arranged, and can make the first conductive pattern 232
Conductive thread a and the conductive thread a spaced formation induction structure of the second conductive pattern 234.
Step S150, lays and fills and leads up layer, is provided with the surface-coated impressing of conductive layer 230 at impressing glue-line 220
Glue also makes it solidify, and is formed and fills and leads up layer.Surface-coated UV of conductive layer 230 it is provided with at impressing glue-line 220
Glue, is formed and fills and leads up layer 250.Because, after impressing glue-line 220 is carried out imprint process, impressing glue can be caused unavoidably
Layer 220 surface irregularity, therefore before carrying out follow-up making, can be to the impressing glue-line being provided with conductive layer 230
220 surface configurations fill and lead up layer 250, so that impressing glue-line 220 surfacing, facilitate follow-up filter layer 240 more
Good covers, and is illustrated in figure 5 and is provided with the optical filter box 200 filling and leading up layer 250.It is pointed out that i.e.
Make to be not provided with filling and leading up layer 250, it is also possible to realize covering the purpose of filter layer 240.This fills and leads up the material of layer 250
Can be transparent heat reactive resin or UV solidification resin etc., in the present embodiment, fill and lead up layer 250
Material can be that UV solidifies resin.
Step S160, the side formation being provided with conductive layer 230 at impressing glue-line 220 is intersected by gridline
The light shielding part 242 formed, described light shielding part 242 is lattice-shaped structure, including multiple grid cells.In this reality
Execute in example, fill and lead up layer because being provided with, therefore light shielding part 242 is formed at impressing glue-line 220 and is provided with conductive layer 230
Side and being particularly located at fill and lead up the layer surface away from impressing glue-line 220.
Step S170, is respectively coated with photoresist in the plurality of grid cell, sets forming multiple interval
The filter unit put, the plurality of filter unit forms optical filtering portion 244.Wherein, light shielding part 242 and optical filtering portion
244 belong to light shield layer.
To grid cell, coating photoresist in region the most covered by photoresist so that it is just can obtain after solidification
To multiple filter units, thus form optical filtering portion 244.Photoresist is that rgb light hinders material, former according to three
Chromogen is managed, after the light mixing of different filter units, and the light of other multiple colors available.Due to
Filter unit is positioned at grid cell, and multiple filter units are individually separated by gridline.
Refer to Figure 14, wherein in an embodiment, above-mentioned steps S160 particularly as follows:
Step S162, is provided with the photoresist of the side coating black dyes of conductive layer 230 at impressing glue-line 220
And make it solidify, form black photoresist layer.
Step S164, uses exposure-development technology that described black photoresist layer is etched into lattice-shaped structure,
To described light shielding part 242, described light shielding part 242 includes multiple grid cell.
Photoresist can be removed by exposure-development.Therefore, by exposure-development, black photoresist layer can be carried out
Etching, removes region (for forming the part of filter unit) corresponding for grid cell, forms a plurality of grid
Ruling intersects the lattice-shaped formed, thus obtains light shielding part 242.
By above-mentioned color filter preparation method, available a kind of optical filter box 200, this optical filter box 200
Touch control operation and filtering functions can be realized simultaneously.As the combination of two assemblies indispensable in display screen,
When this optical filter box 200 is used for touching in display screen, display screen can be directly made to have touch controllable function, it is not necessary to
Assemble a touch screen the most on a display screen, thus advantageously reduce the thickness of electronic product.Additionally, utilize filter
When light chip module 200 preparation touches display screen, can reduce by an attaching process, thus also can save material also
Improve production efficiency.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes 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, it is also possible to make some deformation and
Improving, 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 as the criterion.
Claims (9)
1. an optical filter box, it is characterised in that including:
Substrate, including relative first surface and second surface；
Impressing glue-line, covers in the first surface of described substrate, and described impressing glue-line is away from the one of described substrate
Side offers the first groove and the second groove；
Conductive layer, is embedded at the described impressing glue-line side away from described substrate, and described conductive layer includes first
Conductive pattern and the second conductive pattern, described first conductive pattern and the second conductive pattern are at described impressing glue-line
Plane development direction spaced, described first conductive pattern and described second conductive pattern all include by leading
Electrical filament line intersect formed conductive grid, conductive thread intersects to form grid node, described conductive grid
Including multiple grid cells, described first conductive pattern is spaced with described second conductive pattern forms sensing
Structure, the conductive thread of described first conductive pattern is contained in described first groove, described second conductive pattern
Conductive thread be contained in the second described groove；
Filter layer, covers in described impressing glue-line away from the side of described substrate, and described filter layer includes shading
Portion and optical filtering portion, described light shielding part is lattice-shaped, including cross one another gridline and multiple grid cell,
Described optical filtering portion includes that multiple filter unit, each described filter unit are contained in grid list described in corresponding one
In unit, described conductive layer is between described impressing glue-line and described light shielding part；
The conductive thread of described first conductive pattern and the conductive thread of the second conductive pattern are at described filter layer
Projection the most all falls within described gridline.
Optical filter box the most according to claim 1, it is characterised in that the live width of described conductive thread
For 0.2um-5um, the adjacent spacing between two grid nodes is 30um-500um.
Optical filter box the most according to claim 1, it is characterised in that described first conductive pattern
The live width of the conductive thread of conductive thread and the second conductive pattern is no more than the live width of described gridline.
Optical filter box the most according to claim 1, it is characterised in that the thickness in described optical filtering portion is not
Thickness less than described light shielding part.
Optical filter box the most according to claim 1, it is characterised in that include filling and leading up layer, cover
Be provided with the side of described conductive layer in described impressing glue-line, described in fill and lead up layer and be positioned at described impressing glue-line with described
Between filter layer.
Optical filter box the most according to claim 1, it is characterised in that described first conductive pattern with
The conductive thread of the second conductive pattern is by the conduction material being filled in described first groove and the second groove respectively
Material solidify to form, and described conductive material includes metal, CNT, Graphene, tin indium oxide and conduction height
At least one in molecule.
Optical filter box the most according to claim 1, it is characterised in that adjacent described first conduction
Interval width between pattern and described second conductive pattern is 0.5～50 μm.
Optical filter box the most according to claim 1, it is characterised in that described first conductive pattern and
A described filter unit is at least accommodated in the range of each described grid cell of described second conductive pattern.
9. one kind touches display screen, it is characterised in that the TFT electrode that includes stacking gradually, Liquid Crystal Module,
Optical filter box and polaroid, described optical filter box is the filter as according to any one of claim 1 to 8
Light chip module.
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| CN103345327B true CN103345327B (en) | 2016-08-10 |
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| 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 |
| CN203386168U (en) * | 2013-07-05 | 2014-01-08 | 南昌欧菲光显示技术有限公司 | Touch display screen and optical filter assembly thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101799031B1 (en) * | 2010-08-09 | 2017-12-21 | 삼성디스플레이 주식회사 | Liquid crystal display including touch sensor layer and method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN203386168U (en) * | 2013-07-05 | 2014-01-08 | 南昌欧菲光显示技术有限公司 | Touch display screen and optical filter assembly thereof |
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Effective date of registration: 20170630 Address after: 330000 Jiangxi city of Nanchang province Huangjiahu road Nanchang economic and Technological Development Zone Patentee after: Nanchang OFilm Tech. Co.,Ltd. Address before: North to the East, 330013 in Jiangxi province Nanchang city Nanchang economic and technological development zones clove road Longtan ditch Co-patentee before: Shenzhen OFilm Tech Co.,Ltd. Patentee before: Nanchang Ofilm Display Tech Co.,Ltd. Co-patentee before: Suzhou OFilm Tech. Co.,Ltd. |
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