CN103345335A - Optical filter box, optical filter box manufacturing method and touch display screen - Google Patents
Optical filter box, optical filter box manufacturing method and touch display screen Download PDFInfo
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- CN103345335A CN103345335A CN2013102828500A CN201310282850A CN103345335A CN 103345335 A CN103345335 A CN 103345335A CN 2013102828500 A CN2013102828500 A CN 2013102828500A CN 201310282850 A CN201310282850 A CN 201310282850A CN 103345335 A CN103345335 A CN 103345335A
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Abstract
An optical filter box comprises a substrate, a shading layer, a filtering layer, a conducting layer, a conducting bridge and an insulating layer. The shading layer and the filtering layer are attached to the same surface of the substrate. The conducting layer is arranged in one side, far from the substrate, of the shading layer in an embedded mode, the conducting layer comprises first conducting patterns and at least two second conducting pattern units, each first conducting pattern and each second conducting pattern unit respectively comprise a conducting grid formed by conducting wires in an mutually-intersecting mode, and the first conducting patterns and the second conducting pattern units are arranged at intervals to form a sensing structure. The conducting bridge is electrically connected with two second conducting pattern units which are placed on two opposite sides of the same first conducting pattern, and the insulating layer is placed between the conducting bridge and the first conducting patterns to insulate the conducting bridge from the first conducting patterns. The optical filter box can achieve touch operation and filtering at the same time. The invention further provides a touch display screen, the thickness of the touch display screen can be reduced beneficially, and materials and cost can be saved. The invention also provides an optical filter box manufacturing method.
Description
Technical field
The present invention relates to display technique field, plane, particularly relate to a kind of optical filter box, optical filter box method for making and touch display screen.
Background technology
Touch-screen is the inductive arrangement that can receive input signals such as touch.Touch-screen has given information interaction brand-new looks, is extremely attractive brand-new information interaction equipment.The development of touch screen technology has caused the common concern of domestic and international information medium circle, has become the Chaoyang new high-tech industry that the photoelectricity industry is a dark horse.
At present, having the electronic product that touches Presentation Function includes display screen and is positioned at touch-screen on the display screen.Yet, touch-screen as with display screen assembly independently, when being used for the electronic product that some realize man-machine interactions, all need to order according to the size that shows screen, assemble again afterwards.The assembling of existing touch-screen and display screen mainly contains dual mode, and namely frame pastes and full the applying.The frame subsides are to be fitted in the edge of touch-screen and display screen, and full applying is whole the applying of upper surface with lower surface and the display screen of touch-screen.
Display screen mainly comprises polaroid, optical filter box, Liquid Crystal Module and thin film transistor (TFT) (TFT, Thin Film Transistor), when being combined into display screen by polaroid, optical filter box, Liquid Crystal Module and thin film transistor (TFT), had bigger thickness, and when continuing on the display screen applying touch-screen, will further increase its thickness, moreover, many one attaching process, just meaning has increased the bad probability of product, increases production cost of products greatly.
Summary of the invention
Based on this, be necessary to reach the cost problem of higher more greatly at thickness, a kind of be conducive to reduce optical filter box, this optical filter box preparation method of electronic product thickness and production cost and the touch display screen that uses this optical filter box are provided.
A kind of optical filter box comprises substrate, also comprises:
Light shield layer, be arranged at a surface of described substrate, described light shield layer is the lattice-shaped structure that gridline intersects to form mutually, and the space of being cut apart by described gridline forms a plurality of grid cells, and described light shield layer offers first groove and second groove away from a side of substrate;
Filter layer comprises the filter unit that a plurality of intervals arrange, and described filter unit is arranged in the described grid cell;
Conductive layer, be embedded at described light shield layer away from a side of described substrate, comprise first conductive pattern and the second conductive pattern unit, the described second conductive pattern unit is positioned at the relative both sides of described first conductive pattern, described first conductive pattern and the described second conductive pattern unit include the conductive grid that is intersected to form mutually by conductive thread, the adjacent conductive silk thread intersects to form grid node, described first conductive pattern of conductive grid and space, the described second conductive pattern unit form induction structure, the conductive thread of described first conductive pattern is contained in described first groove, and the conductive thread of the described second conductive pattern unit is contained in described second groove;
Conducting bridge and insulation course, described conducting bridge is electrically connected two second conductive pattern unit that are positioned at the relative both sides of same described first conductive pattern, described insulation course is between described conducting bridge and described first conductive pattern, and the described second conductive pattern unit at described conducting bridge and conducting bridge two ends constitutes second conductive pattern.
Therein among embodiment, described insulation course covers described first conductive pattern and the second conductive pattern unit, described conducting bridge is embedded at described insulation course away from a side of described substrate, described conducting bridge comprises bridge part and is electrically connected the portion of running through at described bridge part two ends respectively, described bridge part comprises the conductive grid that is formed by conductive thread, and described insulation course is run through to be electrically connected adjacent respectively and to be positioned at two second conductive pattern unit of the relative both sides of described first conductive pattern in the described portion of running through.
Among embodiment, the adjacent described conductive thread of described bridge part intersects to form grid node therein, and the live width of the conductive thread of described bridge part is 1 μ m～10 μ m, and the distance of described grid node is 10 μ m～100 μ m.
Among embodiment, each described portion of running through is connected at least two conductive threads of the corresponding second conductive pattern unit therein.
Among embodiment, described conducting bridge is the conducting bridge of transparent strip therein, and described conducting bridge covers in described surface of insulating layer, and is electrically connected with two second conductive pattern unit that are positioned at the relative both sides of same described first conductive pattern.
Among embodiment, the thickness of described filter layer is not less than the thickness summation of described light shield layer and described conductive layer therein.
Therein among embodiment, the live width of the conductive thread of the conductive thread of described first conductive pattern and the second conductive pattern unit is all less than the live width of described gridline.
Therein among embodiment, the conductive thread of described first conductive pattern and the second conductive pattern unit is respectively to be solidify to form by the conductive material that is filled in described first groove and second groove, and described conductive material comprises at least a in metal, carbon nano-tube, Graphene, tin indium oxide and the conducting polymer.
Among embodiment, hold a described filter unit in the scope of each described conductive grid of described first conductive pattern and the described second conductive pattern unit at least therein.
A kind of touch display screen comprises the TFT electrode, Liquid Crystal Module, optical filter box and the polaroid that stack gradually, and described optical filter box is optical filter box as previously discussed.
A kind of optical filter box method for making may further comprise the steps:
One substrate is provided;
Cover the impression glue-line with interception at described substrate surface;
Described impression glue-line is impressed and solidifies, form latticed first groove and second groove at described impression glue-line away from a side of described substrate;
Filled conductive material to the first groove and second groove, and solidify, forming first conductive pattern and the second conductive pattern unit that is embedded wherein at described impression glue-line, the described second conductive pattern unit is positioned at the relative both sides of described first conductive pattern;
Cover photoresist layer at described impression glue-line, and expose-developing manufacture process, make described photoresist layer form the lattice-shaped mask;
Described impression glue is carried out etching, under the blocking of described lattice-shaped mask, make described impression glue-line form the lattice-shaped light shield layer, described light shield layer comprises the gridline of mutual fork, and described first groove and second groove all are opened on the gridline, and the impression glue beyond the gridline is removed;
In grid cell, cover chromatic photoresist respectively, form filter layer;
Form insulation course and conducting bridge, two described second conductive pattern unit that described conducting bridge will be positioned at the same described first conductive pattern both sides are electrically connected, described insulation course is between described conducting bridge and described first conductive pattern, and the described second conductive pattern unit at described conducting bridge and conducting bridge two ends constitutes second conductive pattern.
Among embodiment, described formation conducting bridge and insulation course specifically may further comprise the steps therein:
The complex surfaces that the coating ultraviolet cured adhesive forms in filter layer, conductive layer and light shield layer forms insulation course;
Impress described insulation course, form the bridge part groove and run through portion's groove, describedly run through that portion's groove penetrates described insulation course and to being positioned at the described second conductive pattern unit;
The filled conductive material is in the bridge part groove and run through portion's groove and it is solidified, and forms the conducting bridge that has bridge part and be positioned at the portion of running through at described bridge part two ends.
Among embodiment, described formation conducting bridge and insulation course specifically may further comprise the steps therein:
The complex surfaces coating photoresist that forms at filter layer, conductive layer and light shield layer forms photoresist layer;
Photoresist layer is exposed-develops, cover layer to obtain photoresist, described photoresist is covered layer to being positioned at the described second conductive pattern unit;
Cover the complex surfaces coating ultraviolet cured adhesive of layer to having photoresist, form insulation course;
Impress described insulation course, form the bridge part groove, contraposition is handled the two ends that make described bridge part groove and photoresist and is covered and layer be connected;
Remove described photoresist and cover layer, form the second corresponding conductive pattern unit of connection and the portion of the running through groove of bridge part groove;
The filled conductive material is in the bridge part groove and run through portion's groove and it is solidified, and forms the conducting bridge that has bridge part and be positioned at the portion of running through at described bridge part two ends.
Among embodiment, described formation conducting bridge and insulation course specifically may further comprise the steps therein:
Adopt inkjet printing or screen printing technique to prepare the conducting bridge zone at needs and cover transparent insulation course;
Adopt inkjet printing or screen printing technique to cover electrically conducting transparent printing ink on the surface that is formed with insulation course, form conducting bridge, be positioned at two second conductive pattern unit of the relative both sides of same described first conductive pattern with electrical connection.
Above-mentioned optical filter box and use the touch display screen of this optical filter box, optical filter box can be realized touch control operation and filtering functions simultaneously, combination as indispensable two assemblies in the display screen, when being used for display screen, can directly make display screen have touch controllable function, need not to assemble a touch-screen at display screen again, not only be conducive to reduce the thickness of electronic product, also saved material and assembly cost simultaneously greatly.In addition, when utilizing above-mentioned optical filter box to prepare touch display screen, can reduce attaching process one time, thus but economical with materials and enhancing productivity also.
Description of drawings
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 again the structural representation of the optical filter box of an embodiment;
Fig. 6 is the structural representation at another visual angle of optical filter box shown in Figure 5;
Fig. 7 holds the structural representation of a filter unit for conductive grid;
Fig. 8 is the structural representation that the conductive grid of an embodiment holds at least two filter units;
Fig. 9 holds the structural representation of at least two filter units for the conductive grid of another embodiment;
Figure 10 holds the structural representation of at least two filter units for the conductive grid of another embodiment;
Figure 11 is the schematic flow sheet of the optical filter box method for making of an embodiment;
Figure 12 is the schematic flow sheet of the formation conducting bridge of an embodiment;
Figure 13 is the schematic flow sheet of the formation conducting bridge of another embodiment;
Figure 14 is the schematic flow sheet of the formation conducting bridge of an embodiment again.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with accompanying drawing the specific embodiment of the present invention is described in detail.A lot of details have been set forth in the following description so that fully understand the present invention.But the present invention can implement much to be different from alternate manner described here, and those skilled in the art can do similar improvement under the situation of intension of the present invention, so the present invention is not subjected to the restriction of following public concrete enforcement.
Need to prove that when element is called as " being fixed in " another element, can directly can there be element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be to be directly connected to another element or may to have element placed in the middle simultaneously.
Unless otherwise defined, the employed all technology of this paper are identical with the implication that belongs to those skilled in the art's common sense of the present invention with scientific terminology.Employed term is not intended to be restriction the present invention just in order to describe the purpose of specific embodiment in instructions of the present invention herein.Term as used herein " and/or " comprise one or more relevant Listed Items arbitrarily with all combinations.
Seeing also Fig. 1, is the touch display screen 100 of an embodiment, comprises following polaroid 10, TFT electrode 20, Liquid Crystal Module 30, public electrode 40, diaphragm 50, the optical filter box 200 that stacks gradually and goes up polaroid 60.In other embodiment, need not to arrange diaphragm 50 and public electrode 40 also can.
TFT electrode 20 comprises glass-base 24 and the show electrode 22 that is arranged on the glass-base 24.Liquid Crystal Module comprises liquid crystal 32 and is held on the alignment film 34 of liquid crystal 32 both sides.
Be appreciated that when using backlight as polarized light source as the OLED polarized light source, need not down polaroid 10, only needing upward, polaroid 60 gets final product.Structure and the function of the following polaroid 10 of present embodiment, TFT electrode 20, Liquid Crystal Module 30, public electrode 40, diaphragm 50, last polaroid 60 can be identical with existing product, do not repeat them here.
But optical filter box 200 has tangible operation and filtering functions simultaneously, makes touch display screen have the touch Presentation Function.Touch display screen can be the LCDs of straight-down negative or side entering type light source.
See also Fig. 2 to Fig. 5, expression be 200 4 kinds of different embodiments of optical filter box.Four kinds of different embodiments include substrate 210, light shield layer 220, filter layer 230, conductive layer 240, conducting bridge 250 and insulation course 260.The material of substrate 210 can be sillico aluminate glass and calcium soda-lime glass, handles the rear surface through Plasma and has good cohesive force.General, the thickness range of substrate 210 can be 0.1mm～0.5mm.
As shown in Figure 4, expression is the width that the width of first groove 222 and second groove 224 all equals gridline.As Fig. 2, Fig. 3 and shown in Figure 5, expression be the width of first groove 222 and second groove 224 all less than the width of gridline, the conductive thread 270 that is contained in first groove 222 and second groove 224 this moment is also less than the width of gridline.That is to say that the live width of conductive thread 270 of the conductive thread 270 of first conductive pattern 242 and the second conductive pattern unit 244 is all less than the live width of gridline.So in the complete embedding light shield layer 220 of conductive thread 270, and can not drop on filter unit 232 zones because of part, when processing procedure filter layer 230, produce the broken string risk.And conductive thread 270 does not exceed gridline, can avoid influencing bright dipping and the product transmittance of filter layer 230, improves the customer experience sense.
Conducting bridge 250 is electrically connected two second conductive pattern unit 244 that are positioned at same first conductive pattern 242 relative both sides.Insulation course 260 is between conducting bridge 250 and first conductive pattern 242, so that conducting bridge 250 and 242 insulation of first conductive pattern.The described second conductive pattern unit 244 at conducting bridge 250 and conducting bridge 250 two ends constitutes second conductive pattern.
The conductive thread 270 of above-mentioned optical filter box 200, the first conductive patterns 242 and the conductive thread of the second conductive pattern unit 244 270 arrange at interval, constitute the capacitive sensing structure, make optical filter box 200 can realize touch control operation and filtering functions simultaneously.When above-mentioned optical filter box is applied to display screen, can directly make display screen have touch controllable function, need not to assemble a touch-screen at display screen again, not only be conducive to reduce the thickness of electronic product, also save material and assembly cost greatly.By conducting bridge 250 electrical connection of a plurality of second conductive pattern unit 244 of second conductive pattern is got up, an electrical leads only need be set in follow-up be used for drawing second conductive pattern, save operation, guarantee the product yield.
See also Fig. 2, in one embodiment, insulation course 260 covers first conductive pattern 242 and the second conductive pattern unit 244.Conducting bridge 250 is embedded at insulation course 260 away from a side of substrate 210.Conducting bridge 250 comprises bridge part 252 and is electrically connected the portion of running through 254 at bridge part 252 two ends respectively.Bridge part 252 is the conductive grid that is formed by conductive thread with running through portion 254, and bridge part 252 is 1 μ m～10 μ m with the scope of the live width of the conductive thread that runs through portion 254, and the scope of the distance of grid node is 10 μ m～100 μ m, to satisfy visually-clear.So can adopt the conductive material that comprises transparent conductive material, at least a as among metal simple-substance, carbon nano-tube, Graphene, organic conductive macromolecule or the ITO.Run through portion 254 and run through insulation course 260 to be electrically connected adjacent respectively and to be positioned at two second conductive pattern unit 244 of first conductive pattern, 242 relative both sides.Be embedded at conducting bridge 250 in the insulation course 260 and can be subjected to the protection of insulation course 260, avoid in follow-up operation, damaging.
In one embodiment, each runs through at least two conductive threads 270 that portion 254 is connected in the corresponding second conductive pattern unit 244.If wherein conductive thread 270 fractures, but another still conducting of conductive thread 270, guarantees that two second conductive pattern unit 244 adjacent and that be positioned at first conductive pattern, 242 both sides are electrically connected, with the validity that guarantees electrically to overlap.
See also Fig. 3 to Fig. 5, conducting bridge 250 is electrically conducting transparent bridge 250, and conducting bridge 250 covers in insulation course 260 surfaces, and is electrically connected with two second conductive pattern unit 244 that are positioned at same first conductive pattern 242 relative both sides.Conducting bridge 250 is electrically conducting transparent bridge 250, guarantees the integral light-transmitting rate of this touch display screen.Conducting bridge 250 can be formed by the conductive thread cross connection, is conducive to increase the penetrability of conductive layer 240.
See also Fig. 5 and Fig. 6, in one embodiment, filter layer 230 comprises the filter unit 232 that a plurality of intervals arrange, and a plurality of filter units 232 lay respectively in a plurality of grid cells, thus by gridline with a plurality of 232 single separating of filter unit.Filter unit 232 is formed by chromatic photoresist, and chromatic photoresist is generally the photoresist that has coloured dye and forms, and can adopt exposure-developing manufacture process.That chromatic photoresist is generally is red (red, R) photoresistance, it is green that (green, G) (blue, B) photoresistance are used for making incident light be transformed into monochromatic light, realize filtering functions for photoresistance or indigo plant.The light that sends from backlight filters through filter unit 232, can obtain the light of corresponding color respectively.The throughput of light in different colours filter unit 232 of control backlight can be mixed obtaining the shades of colour mixed light, and then be realized multicoloured demonstration.
See also Fig. 4 and Fig. 5, the thickness of filter layer 230 is not less than the thickness summation of light shield layer 220 and conductive layer 240.That is to say that the thickness of filter unit 232 is not less than the thickness summation of light shield layer 220 and first conductive layer 240.As shown in Figure 5, in one embodiment, the thickness of filter layer 230 is greater than the thickness summation of light shield layer 220 and conductive layer 240.From the light that filter layer 230 appears, not only can see from the front, also can see from the side, thereby can increase the light emission rate of filter layer 230.As shown in Figure 4, in other embodiments, the thickness of filter layer 230 equals the thickness summation of light shield layer 220 and conductive layer 240.Light shield layer 220 is the lattice-shaped structure that the ultraviolet cured adhesive of black forms at substrate 210.
See also Fig. 6, in present embodiment, the conductive thread 270 of first conductive pattern 242 and the second conductive pattern unit 244 is straight line, curve or broken line.When conductive thread 270 can be for difformity, reduced production requirement.
One of them person's conductive grid and filter unit 232 similar fitgures each other in first conductive pattern 242 and the second conductive pattern unit 244, the center line of at least one conductive thread 270 and the central lines of gridline in first conductive pattern 242 and the second conductive pattern unit 244.Be that conductive thread 270 is over against gridline.Conductive grid is that conductive thread 270 intersects to form, and grid cell is cut apart by gridline and formed, and filter unit 232 is formed at grid cell.So in one embodiment, the shape that can make conductive grid is identical with the shape of filter unit 232 but vary in size, i.e. conductive grid and filter unit 232 similar fitgures each other.In present embodiment, the center line of the conductive thread 270 of first conductive pattern 242 and the second conductive pattern unit 244 and the central lines of gridline.Further reduce conductive thread 270 and exposed the probability in gridline zone.Certainly, in other embodiment, the only center line of the conductive thread 270 of first conductive pattern 242 or the second conductive pattern unit 244 and the central lines of gridline.
See also Fig. 5, in present embodiment, the conductive thread 270 of first conductive pattern 242 and the conductive thread 270 of the second conductive pattern unit 244 are respectively to be solidify to form by the conductive material that is filled in first groove 222 and second groove 224, and what conductive material can be among metal, carbon nano-tube, Graphene, organic conductive macromolecule and the ITO is at least a.Be preferably metal, as nanometer silver paste.First conductive pattern 242 and the second conductive pattern unit 244 comprise the continuous conduction grid, and conductive grid is intersected to form by conductive thread 270.Conductive thread 270 can be by impressing second groove 224 that first groove 222 that obtains shape and first conductive pattern 242 coupling and shape and the second conductive pattern unit 244 mate earlier on light shield layer 220, the filled conductive material makes in the groove structure again.Therefore, can pass through the impressing mould one-shot forming, the pattern that obtains presetting, and need not be by graphical etching, thereby simplify flow process.Special when using ITO as conductive material, owing to need not etching, thus reduced waste of material, and then save cost.Adopt first groove 222 and second groove 224 to form conductive layer 240, make conductive material be not limited to traditional ITO, thereby increased the selection face of conductive material.
At least accommodate a filter unit 232 in the scope of each conductive grid of first conductive pattern 242 and the second conductive pattern unit 244.As shown in Figure 7, the range content of each conductive grid of first conductive pattern 242 and the second conductive pattern unit 244 has been received a filter unit 232.Because the conductive thread equal 270 of first conductive pattern 242 and the second conductive pattern unit 244 is embedded in the gridline, so the filter unit 232 that holds is individual for integer, quantity is one.Because each grid cell is to there being a conductive grid, so the density of conductive grid is bigger, electric conductivity is better.
To shown in Figure 10, each conductive grid of first conductive pattern 242 and the second conductive pattern unit 244 accommodates at least two filter units 232 as Fig. 8.Because the conductive thread 270 of first conductive pattern 242 and the second conductive pattern unit 244 all is embedded in the gridline, so the filter unit 232 that holds is individual for integer, quantity is at least two.
Can be divided into three kinds of situations this moment, and laterally to be X-axis, the direction of vertical transverse is Y-axis.As shown in Figure 8, only on X-direction, each conductive grid of first conductive pattern 242 and the second conductive pattern unit 244 holds at least two filter units 232.As shown in Figure 9, only on Y direction, each conductive grid of first conductive pattern 242 and the second conductive pattern unit 244 holds at least two filter units 232.As shown in figure 10, on X-axis and Y direction, each conductive grid of first conductive pattern 242 and the second conductive pattern unit 244 holds at least two filter units 232 simultaneously.
See also Figure 11, a kind of optical filter box method for making also be provided, specifically may further comprise the steps:
Step S110 provides a substrate 210.210 carryings of substrate and protective effect, and light-permeable.The material of substrate 210 and the effect as mentioned above, so do not repeat them here.Before carrying out subsequent step, also can carry out plasma (Plasma) pre-service to substrate 210, removing the dirty of substrate 210 surfaces, and make substrate 210 surface ionizations, increase follow-up and cohesive force other material.
Step S120 covers the impression glue-line with interception on substrate 210 surfaces.The impression glue-line can be the ultraviolet cured adhesive of black.The ultraviolet cured adhesive of black has interception, has opaqueness.
Step S130, the impression glue-line is impressed, be cured again, to form first groove 222 and second groove 224 at the impression glue-line away from a side of substrate, first groove 222 and second groove 224 are the groove of predetermined cell shape, namely can be preset to required figure as required.First groove 222 and first conductive pattern, 242 couplings, second groove 224 and the second conductive pattern unit, 244 couplings.
Step S140, filled conductive material to the first groove 222 and second groove 224, and solidify.Form first conductive pattern 242 and the second conductive pattern unit 244 be embedded wherein at the impression glue-line, the described second conductive pattern unit 244 is positioned at the relative both sides of described first conductive pattern 242.Conductive material can be among metal simple-substance, carbon nano-tube, Graphene, organic conductive macromolecule or the ITO at least a.Therefore, can pass through the impressing mould one-shot forming, the pattern that obtains presetting, and need not be by graphical etching, thereby simplify flow process.Special when using ITO as conductive material, owing to need not etching, thus reduced waste of material, and then save cost.Adopt first groove 222 and second groove 224 to form conductive layer 240, make conductive material be not limited to traditional ITO, thereby increased the selection face of conductive material.
This conductive material forms the conductive grid that is made of conductive thread 270 intersections.Conductive material is preferably metal, as nanometer silver paste.When selecting metal for use, the energy consumption that can reduce resistance and reduce touch display screen.The conductive thread 270 that the conductive thread 270 of first conductive pattern 242 is contained in first groove, 222, the second conductive pattern unit 244 is contained in second groove 224.First groove 222 and second groove 224 arrange at interval, and the second conductive pattern unit 244 is positioned at the relative both sides of first conductive pattern 242, can make the conductive thread 270 of first conductive pattern 242 and conductive thread 270 spaces of the second conductive pattern unit 244 form induction structure.First conductive pattern 242 and the second conductive pattern unit 244 adopt networks, are convenient to blade coating technology, and produce agglomeration effect when preventing sintering and cause conductive thread 270 fractures.
Step S150 covers photoresist layer at the impression glue-line, and exposes-developing manufacture process, makes photoresist layer form the lattice-shaped mask.
Step S160, the impression glue-line is carried out etching, under the blocking of lattice-shaped mask, make impression glue-line formation intersect the lattice-shaped light shield layer 220 that constitutes mutually by gridline, first groove 222 and second groove 224 all are opened on the gridline, and the impression glue beyond the gridline is removed.
Step S170 covers chromatic photoresist respectively in grid cell, form filter layer 230.Filter unit 232 is formed by chromatic photoresist, that chromatic photoresist is generally is red (red, R) photoresistance, it is green that (green, G) (blue, B) photoresistance are used for making incident light be transformed into monochromatic light, realize filtering functions for photoresistance or indigo plant.
Step S180 forms conducting bridge 250 and insulation course 260.The described second conductive pattern unit 244 that described conducting bridge 250 will be positioned at same described first conductive pattern 242 both sides is electrically connected, described insulation course 260 is between described conducting bridge 250 and described first conductive pattern 242, and the described second conductive pattern unit 244 at described conducting bridge 250 and conducting bridge 250 two ends constitutes second conductive pattern.Because the conductive thread 270 of first conductive pattern 242 and the second conductive pattern unit 244 is contained in first groove 222 and second groove 224 respectively, and first groove 222 and second groove 224 are opened on the gridline, so the conductive thread 270 of first conductive pattern 242 and the second conductive pattern unit 244 all is embedded at light shield layer 220, can avoid conductive thread 270 by scratch.And the conductive thread of conducting bridge 250 is embedded at insulation course 260, so also can avoid conductive thread by scratch.
See also Figure 12, in one embodiment, step S180 specifically can may further comprise the steps:
S1810, the coating ultraviolet cured adhesive forms insulation course 260 in the complex surfaces that filter layer 230, conductive layer 240 and light shield layer 220 form.Insulation course 260 is transparent, does not influence the transmitance of light.
S1812 impresses described insulation course 260, and is cured, and forms the bridge part groove and runs through portion's groove.Describedly run through that portion's groove penetrates described insulation course 260 and to being positioned at the described second conductive pattern unit 244.Need carry out contraposition and handle, make the protuberance at mould place of corresponding bridging two ends conducting block press to wear insulation course 260 and be connected with the corresponding second conductive pattern unit 244 and form the bridge part groove and to run through portion's groove.
Step S1814, the filled conductive material is in the bridge part groove and run through portion's groove and it is solidified, and forms the conducting bridge 250 that has bridge part 252 and be positioned at the portion of running through 254 at described bridge part 252 two ends.The conductive material of filling can be metal simple-substance or alloy, carbon nano-tube, Graphene, at least a among organic conductive macromolecule and the ITO.Be preferably metal, as nanometer silver paste.
See also Figure 13, in one embodiment, step S180 specifically can may further comprise the steps:
Step S1820, the complex surfaces coating photoresist that forms at filter layer 230, conductive layer 240 and light shield layer 220 forms photoresist layer.
Step S1822 exposes-develops photoresist layer, covers layer to obtain photoresist, and described photoresist is covered layer to being positioned at the described second conductive pattern unit 244.Namely this photoresist is covered layer and is run through portion 254 corresponding positions two of follow-up conducting bridge 250.
Step S1824 covers the complex surfaces coating ultraviolet cured adhesive of layer to having photoresist, forms insulation course 260.Insulation course 260 is transparent, does not influence the transmitance of light.
Step S1825 impresses described insulation course 260, forms the bridge part groove, and contraposition is handled the two ends that make described bridge part groove and photoresist and covered and layer be connected.Use the impression block impression corresponding with required conducting bridge 250 on insulation course 260 surfaces and be cured, obtain forming the bridge part groove.And carry out contraposition and handle, make two ends and the photoresist of bridge part groove of conducting bridge 250 cover and layer be connected.
Step S1826 removes described photoresist and covers layer, forms to be communicated with the second corresponding conductive pattern unit 244 and the portion of the running through groove of bridge part groove.
Step S1827, the filled conductive material is in the bridge part groove and run through portion's groove and it is solidified, and forms the conducting bridge 250 that has bridge part 252 and be positioned at the portion of running through 254 at described bridge part 252 two ends.The conductive material of filling can be metal simple-substance or alloy, carbon nano-tube, Graphene, at least a among organic conductive macromolecule and the ITO.Be preferably metal, as nanometer silver paste.
See also Figure 14, in one embodiment, step S180 specifically can may further comprise the steps:
Step S1830 adopts inkjet printing or screen printing technique to prepare conducting bridge 250 zones at needs and covers transparent insulation course 260.
Step S1832, adopt inkjet printing or screen printing technique to cover electrically conducting transparent printing ink on the surface that is formed with insulation course 260, form conducting bridge 250, be positioned at two second conductive pattern unit 244 of same described first conductive pattern 242 relative both sides with electrical connection.Electrically conducting transparent ink material is electrically conducting transparent macromolecular material or nano level metal particle, and it is transparent to solidify after-vision.
By above-mentioned filtering assembly preparation method, can obtain a kind of optical filter box 200, this optical filter box 200 can be realized touch control operation and filtering functions simultaneously.As the combination of indispensable two assemblies in the display screen, when this optical filter box is used for touch display screen, can directly make display screen have touch controllable function, need not to assemble a touch-screen at display screen again, thereby be conducive to reduce the thickness of electronic product.By conducting bridge 250 electrical connection of a plurality of second conductive pattern unit 244 of second conductive pattern is got up, an electrical leads only need be set in follow-up be used for drawing second conductive pattern, save operation, guarantee the product yield.The preparation technology of this optical filter box is simple simultaneously, operates controlledly, and cost is lower, applicable to suitability for industrialized production.In addition, when utilizing optical filter box to prepare touch display screen, can reduce attaching process one time, thus but economical with materials and enhancing productivity also.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (14)
1. an optical filter box comprises substrate, it is characterized in that, also comprises:
Light shield layer, be arranged at a surface of described substrate, described light shield layer is the lattice-shaped structure that gridline intersects to form mutually, and the space of being cut apart by described gridline forms a plurality of grid cells, and described light shield layer offers first groove and second groove away from a side of substrate;
Filter layer comprises the filter unit that a plurality of intervals arrange, and described filter unit is arranged in the described grid cell;
Conductive layer, be embedded at described light shield layer away from a side of described substrate, comprise first conductive pattern and the second conductive pattern unit, the described second conductive pattern unit is positioned at the relative both sides of described first conductive pattern, described first conductive pattern and the described second conductive pattern unit include the conductive grid that is intersected to form mutually by conductive thread, the adjacent conductive silk thread intersects to form grid node, described first conductive pattern of conductive grid and space, the described second conductive pattern unit form induction structure, the conductive thread of described first conductive pattern is contained in described first groove, and the conductive thread of the described second conductive pattern unit is contained in described second groove;
Conducting bridge and insulation course, described conducting bridge is electrically connected two second conductive pattern unit that are positioned at the relative both sides of same described first conductive pattern, described insulation course is between described conducting bridge and described first conductive pattern, and the described second conductive pattern unit at described conducting bridge and conducting bridge two ends constitutes second conductive pattern.
2. optical filter box according to claim 1, it is characterized in that, described insulation course covers described first conductive pattern and the second conductive pattern unit, described conducting bridge is embedded at described insulation course away from a side of described substrate, described conducting bridge comprises bridge part and is electrically connected the portion of running through at described bridge part two ends respectively, described bridge part comprises the conductive grid that is formed by conductive thread, and described insulation course is run through to be electrically connected adjacent respectively and to be positioned at two second conductive pattern unit of the relative both sides of described first conductive pattern in the described portion of running through.
3. optical filter box according to claim 2, it is characterized in that, the adjacent described conductive thread of described bridge part intersects to form grid node, and the live width of the conductive thread of described bridge part is 1 μ m～10 μ m, and the distance of described grid node is 10 μ m～100 μ m.
4. optical filter box according to claim 3 is characterized in that, each described portion of running through is connected at least two conductive threads of the corresponding second conductive pattern unit.
5. optical filter box according to claim 1, it is characterized in that, described conducting bridge is the conducting bridge of transparent strip, and described conducting bridge covers in described surface of insulating layer, and is electrically connected with two second conductive pattern unit that are positioned at the relative both sides of same described first conductive pattern.
6. optical filter box according to claim 1 is characterized in that, the thickness of described filter layer is not less than the thickness summation of described light shield layer and described conductive layer.
7. optical filter box according to claim 1 is characterized in that, the live width of the conductive thread of the conductive thread of described first conductive pattern and the second conductive pattern unit is all less than the live width of described gridline.
8. optical filter box according to claim 1, it is characterized in that, the conductive thread of described first conductive pattern and the second conductive pattern unit is respectively to be solidify to form by the conductive material that is filled in described first groove and second groove, and described conductive material comprises at least a in metal, carbon nano-tube, Graphene, tin indium oxide and the conducting polymer.
9. optical filter box according to claim 1 is characterized in that, holds a described filter unit in the scope of each described conductive grid of described first conductive pattern and the described second conductive pattern unit at least.
10. a touch display screen is characterized in that, comprises the TFT electrode, Liquid Crystal Module, optical filter box and the polaroid that stack gradually, and described optical filter box is as any described optical filter box in the claim 1 to 9.
11. an optical filter box method for making is characterized in that, may further comprise the steps:
One substrate is provided;
Cover the impression glue-line with interception at described substrate surface;
Described impression glue-line is impressed and solidifies, form latticed first groove and second groove at described impression glue-line away from a side of described substrate;
Filled conductive material to the first groove and second groove, and solidify, forming first conductive pattern and the second conductive pattern unit that is embedded wherein at described impression glue-line, the described second conductive pattern unit is positioned at the relative both sides of described first conductive pattern;
Cover photoresist layer at described impression glue-line, and expose-developing manufacture process, make described photoresist layer form the lattice-shaped mask;
Described impression glue is carried out etching, under the blocking of described lattice-shaped mask, make described impression glue-line form the lattice-shaped light shield layer, described light shield layer comprises the gridline of mutual fork, and described first groove and second groove all are opened on the gridline, and the impression glue beyond the gridline is removed;
In grid cell, cover chromatic photoresist respectively, form filter layer;
Form insulation course and conducting bridge, two described second conductive pattern unit that described conducting bridge will be positioned at the same described first conductive pattern both sides are electrically connected, described insulation course is between described conducting bridge and described first conductive pattern, and the described second conductive pattern unit at described conducting bridge and conducting bridge two ends constitutes second conductive pattern.
12. optical filter box method for making according to claim 11 is characterized in that, described formation conducting bridge and insulation course specifically may further comprise the steps:
The complex surfaces that the coating ultraviolet cured adhesive forms in filter layer, conductive layer and light shield layer forms insulation course;
Impress described insulation course, form the bridge part groove and run through portion's groove, describedly run through that portion's groove penetrates described insulation course and to being positioned at the described second conductive pattern unit;
The filled conductive material is in the bridge part groove and run through portion's groove and it is solidified, and forms the conducting bridge that has bridge part and be positioned at the portion of running through at described bridge part two ends.
13. optical filter box method for making according to claim 11 is characterized in that, described formation conducting bridge and insulation course specifically may further comprise the steps:
The complex surfaces coating photoresist that forms at filter layer, conductive layer and light shield layer forms photoresist layer;
Photoresist layer is exposed-develops, cover layer to obtain photoresist, described photoresist is covered layer to being positioned at the described second conductive pattern unit;
Cover the complex surfaces coating ultraviolet cured adhesive of layer to having photoresist, form insulation course;
Impress described insulation course, form the bridge part groove, contraposition is handled the two ends that make described bridge part groove and photoresist and is covered and layer be connected;
Remove described photoresist and cover layer, form the second corresponding conductive pattern unit of connection and the portion of the running through groove of bridge part groove;
The filled conductive material is in the bridge part groove and run through portion's groove and it is solidified, and forms the conducting bridge that has bridge part and be positioned at the portion of running through at described bridge part two ends.
14. optical filter box method for making according to claim 11 is characterized in that, described formation conducting bridge and insulation course specifically may further comprise the steps:
Adopt inkjet printing or screen printing technique to prepare the conducting bridge zone at needs and cover transparent insulation course;
Adopt inkjet printing or screen printing technique to cover electrically conducting transparent printing ink on the surface that is formed with insulation course, form conducting bridge, be positioned at two second conductive pattern unit of the relative both sides of same described first conductive pattern with electrical connection.
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| CN2013102828500A CN103345335A (en) | 2013-07-05 | 2013-07-05 | Optical filter box, optical filter box manufacturing method and touch display screen |
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| CN2013102828500A CN103345335A (en) | 2013-07-05 | 2013-07-05 | Optical filter box, optical filter box manufacturing method and touch display screen |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104866154A (en) * | 2015-06-10 | 2015-08-26 | 罗延廷 | Silk-screen printing technology for making projection-type capacitance touch screen |
| CN105138201A (en) * | 2015-09-08 | 2015-12-09 | 昆山龙腾光电有限公司 | Capacitive touch display panel |
| CN105204674A (en) * | 2014-06-12 | 2015-12-30 | 宸鸿科技(厦门)有限公司 | Touch control display module |
| CN105224150A (en) * | 2014-06-12 | 2016-01-06 | 宸鸿科技(厦门)有限公司 | Contact panel |
| CN106155374A (en) * | 2015-03-27 | 2016-11-23 | 群创光电股份有限公司 | Touch control display apparatus and contact panel thereof |
| CN116482887A (en) * | 2023-03-30 | 2023-07-25 | 惠科股份有限公司 | Display device, control circuit and vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101441342A (en) * | 2007-11-20 | 2009-05-27 | 胜华科技股份有限公司 | Touch control panel and liquid crystal display panel |
| CN101630215A (en) * | 2009-06-29 | 2010-01-20 | 深圳莱宝高科技股份有限公司 | Capacitance type touch screen and manufacturing method thereof |
| CN101881899A (en) * | 2009-05-08 | 2010-11-10 | 义强科技股份有限公司 | 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 |
| CN103425327A (en) * | 2013-03-30 | 2013-12-04 | 南昌欧菲光显示技术有限公司 | Touch display screen and optical filter module thereof |
-
2013
- 2013-07-05 CN CN2013102828500A patent/CN103345335A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101441342A (en) * | 2007-11-20 | 2009-05-27 | 胜华科技股份有限公司 | Touch control panel and liquid crystal display panel |
| CN101881899A (en) * | 2009-05-08 | 2010-11-10 | 义强科技股份有限公司 | Liquid crystal display |
| CN101630215A (en) * | 2009-06-29 | 2010-01-20 | 深圳莱宝高科技股份有限公司 | Capacitance type touch screen and manufacturing 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 |
| 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 |
| CN103425327A (en) * | 2013-03-30 | 2013-12-04 | 南昌欧菲光显示技术有限公司 | Touch display screen and optical filter module thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105204674A (en) * | 2014-06-12 | 2015-12-30 | 宸鸿科技(厦门)有限公司 | Touch control display module |
| CN105224150A (en) * | 2014-06-12 | 2016-01-06 | 宸鸿科技(厦门)有限公司 | Contact panel |
| CN105224150B (en) * | 2014-06-12 | 2019-03-01 | 宸鸿科技(厦门)有限公司 | Touch panel |
| CN106155374A (en) * | 2015-03-27 | 2016-11-23 | 群创光电股份有限公司 | Touch control display apparatus and contact panel thereof |
| CN106155374B (en) * | 2015-03-27 | 2019-04-30 | 群创光电股份有限公司 | Touch control display apparatus and its touch panel |
| CN104866154A (en) * | 2015-06-10 | 2015-08-26 | 罗延廷 | Silk-screen printing technology for making projection-type capacitance touch screen |
| CN104866154B (en) * | 2015-06-10 | 2018-06-26 | 罗延廷 | A kind of method for printing screen for making projecting type capacitor touch screen |
| CN105138201A (en) * | 2015-09-08 | 2015-12-09 | 昆山龙腾光电有限公司 | Capacitive touch display panel |
| CN116482887A (en) * | 2023-03-30 | 2023-07-25 | 惠科股份有限公司 | Display device, control circuit and vehicle |
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Application publication date: 20131009 |