CN203338309U - Optical filter assembly and touch displaying screen - Google Patents
Optical filter assembly and touch displaying screen Download PDFInfo
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- CN203338309U CN203338309U CN2013204010342U CN201320401034U CN203338309U CN 203338309 U CN203338309 U CN 203338309U CN 2013204010342 U CN2013204010342 U CN 2013204010342U CN 201320401034 U CN201320401034 U CN 201320401034U CN 203338309 U CN203338309 U CN 203338309U
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Abstract
The utility model discloses an optical filter assembly which comprises a substrate, a light shading layer, a light filtering layer, a conducting layer, a conducting bridge and an insulating layer. The light shading layer and the light filtering layer are attached to the same surface of the substrate. The conducting layer is embedded in the side, away from the substrate, of the light shading layer and comprises a first conducting pattern and at least two second conducting pattern units. The first conducting pattern and the second conducting pattern units comprise conducting grids which are formed by crossing conducting wires. The first conducting pattern and the second conducting pattern units are mutually isolated to form a sensing structure. The conducting bridge electrically connects the two conducting pattern units which are located on two opposite sides of the same first conducting pattern. The insulating layer is arranged between the conducting bridge and the first conducting pattern so that the conducting bridge and the first conducting pattern are mutually insulated. The optical filter assembly can achieve the function of being operated in a touched mode and filtering light at the same time. The utility model further provides a touch displaying screen. Reduction of the thickness of the touch displaying screen is facilitated and materials and cost are saved.
Description
Technical field
The utility model relates to display technique field, plane, particularly relates to a kind of optical filter box and touch display screen.
Background technology
Touch-screen is the inductive arrangement that can receive the 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 the touch-screen on display screen.Yet, touch-screen as with display screen assembly independently, when for some, realizing the electronic product of man-machine interaction, all need to be ordered according to the size of aobvious screen, assembled again afterwards.The assembling of existing touch-screen and display screen mainly contains two kinds of modes, and frame pastes and full laminating.It is by the laminating of the edge of touch-screen and display screen that frame pastes, and full laminating is by whole laminating of the upper surface of the lower surface of touch-screen and display screen.
Display screen mainly comprises polaroid, optical filter box, Liquid Crystal Module and thin film transistor (TFT) (TFT, Thin Film Transistor), while by polaroid, optical filter box, Liquid Crystal Module and thin film transistor (TFT), being combined into display screen, there is larger thickness, and while continuing to fit touch-screen on display screen, will further increase its thickness, moreover, many one attaching process, just mean and increased the bad probability of product, greatly increases the production cost of product.
Summary of the invention
Based on this, be necessary to reach more greatly for thickness the problem that cost is higher, a kind of touch display screen that reduces the optical filter box of electronic product thickness and production cost and use this optical filter box that is conducive to is provided.
A kind of optical filter box, comprise 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 the first groove and the second groove away from a side of substrate;
Filter layer, comprise a plurality of spaced filter units, and described filter unit is arranged in described grid cell;
Conductive layer, be embedded at the side of described light shield layer away from described substrate, comprise the first conductive pattern and the second conductive pattern unit, described the second conductive pattern unit is positioned at the relative both sides of described the first conductive pattern, described the first conductive pattern and described the second conductive pattern unit include the conductive grid mutually intersected to form by conductive thread, adjacent conductive thread intersects to form grid node, described the first conductive pattern of conductive grid and described the second space, conductive pattern unit form induction structure, the conductive thread of described the first conductive pattern is contained in described the first groove, the conductive thread of described the second conductive pattern unit is contained in described the second groove,
Conducting bridge and insulation course, described conducting bridge is electrically connected to two the second conductive pattern unit that are positioned at same described the first relative both sides of conductive pattern, described insulation course between described conducting bridge and described the first conductive pattern, described second conductive pattern cell formation second conductive pattern at described conducting bridge and conducting bridge two ends.
Therein in embodiment, described insulation course covers described the first conductive pattern and the second conductive pattern unit, described conducting bridge is embedded at the side of described insulation course away from described substrate, described conducting bridge comprises bridge part and is electrically connected to respectively the section of running through at described bridge part two ends, described bridge part comprises the conductive grid formed by conductive thread, and described insulation course is run through to be electrically connected to respectively adjacent and to be positioned at two the second conductive pattern unit of described the first relative both sides of conductive pattern in the described section of running through.
In 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.
In embodiment, each described section of running through is connected at least two conductive threads of corresponding the second conductive pattern unit therein.
Therein in embodiment, the conducting bridge that described conducting bridge is transparent strip, described conducting bridge covers in described surface of insulating layer, and is electrically connected to two the second conductive pattern unit that are positioned at same described the first relative both sides of conductive pattern.
In embodiment, the thickness of described filter layer is not less than the thickness summation of described light shield layer and described conductive layer therein.
In embodiment, the live width of the conductive thread of the conductive thread of described the first conductive pattern and the second conductive pattern unit all is less than the live width of described gridline therein.
In embodiment, at least hold a described filter unit in the scope of each described conductive grid of described the first conductive pattern and described the second conductive pattern unit therein.
A kind of touch display screen, comprise 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.
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 display screen, during for display screen, can directly make display screen there is touch controllable function, without assemble again a touch-screen on display screen, not only be conducive to reduce the thickness of electronic product, also greatly saved material and assembly cost simultaneously.In addition, while utilizing above-mentioned optical filter box to prepare touch display screen, can reduce attaching process one time, thereby also can save material and enhance productivity.
The accompanying drawing explanation
The structural representation of the touch display screen that Fig. 1 is an embodiment;
The structural representation of the optical filter box that Fig. 2 is an embodiment;
The structural representation of the optical filter box that Fig. 3 is another embodiment;
The structural representation of the optical filter box that Fig. 4 is another embodiment;
Fig. 5 is again the structural representation of the optical filter box of an embodiment;
The structural representation that Fig. 6 is another visual angle of optical filter box shown in Fig. 5;
Fig. 7 is the structural representation that conductive grid holds a filter unit;
The conductive grid that Fig. 8 is an embodiment holds the structural representation of at least two filter units;
The conductive grid that Fig. 9 is another embodiment holds the structural representation of at least two filter units;
The conductive grid that Figure 10 is another embodiment holds the structural representation of at least two filter units;
The schematic flow sheet of the optical filter box method for making that Figure 11 is an embodiment;
The schematic flow sheet of the formation conducting bridge that Figure 12 is an embodiment;
The schematic flow sheet of the formation conducting bridge that Figure 13 is another embodiment;
The schematic flow sheet of the formation conducting bridge that Figure 14 is an embodiment again.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.A lot of details have been set forth in the following description so that fully understand the utility model.But the utility model can be implemented much to be different from alternate manner described here, those skilled in the art can be in the situation that do similar improvement without prejudice to the utility model intension, so the utility model is not subject to the restriction of following public concrete enforcement.
It should be noted 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 directly connected to another element or may have centering elements simultaneously.
Unless otherwise defined, all technology that this paper is used are identical with the implication that belongs to the common understanding of those skilled in the art of the present utility model with scientific terminology.The term used in instructions of the present utility model herein, just in order to describe the purpose of specific embodiment, is not intended to be restriction the utility model.Term as used herein " and/or " comprise one or more relevant Listed Items arbitrarily with all combinations.
Referring to Fig. 1, is the touch display screen 100 of an embodiment, comprises the lower polaroid 10, TFT electrode 20, Liquid Crystal Module 30, public electrode 40, diaphragm 50, optical filter box 200 and the upper polaroid 60 that stack gradually.In other embodiment, without diaphragm 50 being set and public electrode 40 also can.
TFT electrode 20 comprises glass-base 24 and is arranged on the show electrode 22 on 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, without lower polaroid 10, only need upper polaroid 60 to get final product.Structure and the function of the lower polaroid 10 of the present embodiment, TFT electrode 20, Liquid Crystal Module 30, public electrode 40, diaphragm 50, upper 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.
Refer to 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, processes 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 the first groove 222 and the second groove 224 all equals gridline.As shown in Fig. 2, Fig. 3 and Fig. 5, expression be the width that the width of the first groove 222 and the second groove 224 all is less than gridline, the conductive thread 270 that now is contained in the first groove 222 and the second groove 224 also is less than the width of gridline.That is to say that the live width of the conductive thread 270 of the conductive thread 270 of the first conductive pattern 242 and the second conductive pattern unit 244 all is 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 affecting bright dipping and the product transmittance of filter layer 230, improve the customer experience sense.
Conducting bridge 250 is electrically connected to two the second conductive pattern unit 244 that are positioned at same the first conductive pattern 242 relative both sides.Insulation course 260 is between conducting bridge 250 and the first conductive pattern 242, so that conducting bridge 250 and the first conductive pattern 242 insulation.The described second conductive pattern unit 244 at conducting bridge 250 and conducting bridge 250 two ends forms the second conductive pattern.
The conductive thread 270 of above-mentioned optical filter box 200, the first conductive patterns 242 and the conductive thread 270 of the second conductive pattern unit 244 are spaced, form 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 there is touch controllable function, without assemble again a touch-screen on display screen, not only be conducive to reduce the thickness of electronic product, also greatly save material and assembly cost.By being electrically connected of a plurality of second conductive pattern unit 244 of the second conductive pattern, in follow-up, only an electrical leads need to be set for drawing the second conductive pattern by conducting bridge 250, save operation, guarantee product yield.
Refer to Fig. 2, in one embodiment, insulation course 260 covers the first conductive pattern 242 and the second conductive pattern unit 244.Conducting bridge 250 is embedded at the side of insulation course 260 away from substrate 210.Conducting bridge 250 comprises bridge part 252 and is electrically connected to respectively the section of running through 254 at bridge part 252 two ends.Bridge part 252 is the conductive grid formed by conductive thread with running through section 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 section 254, and the scope of the distance of grid node is 10 μ m～100 μ m, to meet visually-clear.So can adopt the conductive material that comprises transparent conductive material, as at least one in metal simple-substance, carbon nano-tube, Graphene, organic conductive macromolecule or ITO.Run through section 254 and run through insulation course 260 to be electrically connected to respectively adjacent and to be positioned at two the second conductive pattern unit 244 of the first conductive pattern 242 relative both sides.Be embedded at the protection that conducting bridge 250 in insulation course 260 can be subject to insulation course 260, avoid damaging in follow-up operation.
In one embodiment, each runs through at least two conductive threads 270 that section 254 is connected in corresponding the second conductive pattern unit 244.If wherein conductive thread 270 fractures, but another still conducting of conductive thread 270, guarantee that two the second conductive pattern unit 244 adjacent and that be positioned at the first conductive pattern 242 both sides are electrically connected to, to guarantee the electrically validity of overlap joint.
Refer to 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 to two the second conductive pattern unit 244 that are positioned at same the 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.
Refer to Fig. 5 and Fig. 6, in one embodiment, filter layer 230 comprises a plurality of spaced filter units 232, and a plurality of filter units 232 lay respectively in a plurality of grid cells, thus by gridline by a plurality of single separating of filter unit 232.Filter unit 232 is formed by chromatic photoresist, and the photoresist that chromatic photoresist is generally with coloured dye forms, and can adopt exposure-developing manufacture process.Chromatic photoresist is generally red (red, R) photoresistance, green (green, G) photoresistance or indigo plant (blue, B) photoresistance, for making incident light, is transformed into monochromatic light, realizes filtering functions.The light sent from backlight filters through filter unit 232, can obtain respectively the light of corresponding color.Control the throughput of light in different colours filter unit 232 of backlight, can be mixed to get the shades of colour mixed light, and then realize multicoloured demonstration.
Refer to 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 the 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.The light appeared from filter layer 230, not only can see from 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.The lattice-shaped structure that the ultraviolet cured adhesive that light shield layer 220 is black forms at substrate 210.
Refer to Fig. 6, in the present embodiment, the conductive thread 270 of the 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 the first conductive pattern 242 and the second conductive pattern unit 244, in the first conductive pattern 242 and the second conductive pattern unit 244, the center line of at least one conductive thread 270 overlaps with the center line of gridline.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 and formed by gridline, 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 the present embodiment, the center line of the conductive thread 270 of the first conductive pattern 242 and the second conductive pattern unit 244 overlaps with the center line of gridline.Further reduce conductive thread 270 and exposed the probability in gridline zone.Certainly, in other embodiment, only the center line of the conductive thread 270 of the first conductive pattern 242 or the second conductive pattern unit 244 overlaps with the center line of gridline.
Refer to Fig. 5, in the present embodiment, the conductive thread 270 of the first conductive pattern 242 and the conductive thread 270 of the second conductive pattern unit 244 are respectively that the conductive material in being filled in the first groove 222 and the second groove 224 solidify to form, and conductive material can be at least one in metal, carbon nano-tube, Graphene, organic conductive macromolecule and ITO.Be preferably metal, as nanometer silver paste.The 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.The second groove 224 that conductive thread 270 can mate by first impress the first groove 222 of obtaining shape and the first conductive pattern 242 coupling and shape and the second conductive pattern unit 244 on light shield layer 220, then make to filled conductive material in groove structure.Therefore, can pass through the impressing mould one-shot forming, obtain default pattern, and need not be by graphical etching, thereby simple flow.Especially as use ITO during as conductive material, due to without etching, thus reduced waste of material, so cost-saving.Adopt the first groove 222 and the 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 the first conductive pattern 242 and the second conductive pattern unit 244.As shown in Figure 7, the range content of each conductive grid of the 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 the first conductive pattern 242 and the second conductive pattern unit 244 is embedded in gridline, so the filter unit 232 held is integer, quantity is one.Because each grid cell is to there being a conductive grid, so the density of conductive grid is larger, electric conductivity is better.
As shown in Fig. 8 to Figure 10, each conductive grid of the first conductive pattern 242 and the second conductive pattern unit 244 accommodates at least two filter units 232.Because the conductive thread 270 of the first conductive pattern 242 and the second conductive pattern unit 244 all is embedded in gridline, so the filter unit 232 held is integer, quantity is at least two.
Now can be divided into three kinds of situations, take is laterally X-axis, and the direction of vertical transverse is Y-axis.As shown in Figure 8, only, on X-direction, each conductive grid of the 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 the 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 the first conductive pattern 242 and the second conductive pattern unit 244 holds at least two filter units 232 simultaneously.
Refer to Figure 11, a kind of optical filter box method for making also be provided, specifically comprise the following steps:
Step S110, provide a substrate 210.210 carryings of substrate and protective effect, and light-permeable.The material of substrate 210 and the effect as mentioned above, therefore do not repeat them here.Also can carry out plasma (Plasma) pre-service to substrate 210 before carrying out subsequent step, to remove the dirty of substrate 210 surfaces, and make substrate 210 surface ions, increase follow-up and cohesive force other material.
Step S120, cover 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, then be cured, at the impression glue-line, away from a side of substrate, to form the first groove 222 and the second groove 224, the groove that the first groove 222 and the second groove 224 are the predetermined cell shape, can be preset to required figure as required.The first groove 222 and the first conductive pattern 242 couplings, the second groove 224 and the second conductive pattern unit 244 couplings.
Step S140, filled conductive material to the first groove 222 and the second groove 224, and solidify.Form and be embedded the first conductive pattern 242 and the second conductive pattern unit 244 wherein on the impression glue-line, described the second conductive pattern unit 244 is positioned at described the first relative both sides of conductive pattern 242.Conductive material can be at least one in metal simple-substance, carbon nano-tube, Graphene, organic conductive macromolecule or ITO.Therefore, can pass through the impressing mould one-shot forming, obtain default pattern, and need not be by graphical etching, thereby simple flow.Especially as use ITO during as conductive material, due to without etching, thus reduced waste of material, so cost-saving.Adopt the first groove 222 and the 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 consisted of conductive thread 270 intersections.Conductive material is preferably metal, as nanometer silver paste.When selecting metal, the energy consumption that can reduce resistance and reduce touch display screen.The conductive thread 270 that the conductive thread 270 of the first conductive pattern 242 is contained in the first groove 222, the second conductive pattern unit 244 is contained in the second groove 224.The first groove 222 and the second groove 224 are spaced, and the second conductive pattern unit 244 is positioned at the first relative both sides of conductive pattern 242, can make the conductive thread 270 of the first conductive pattern 242 and conductive thread 270 spaces of the second conductive pattern unit 244 form induction structure.The first conductive pattern 242 and the second conductive pattern unit 244 adopt networks, are convenient to blade coating technique, and produce agglomeration effect while preventing sintering and cause conductive thread 270 fractures.
Step S150 covers photoresist layer on the impression glue-line, and exposed-developing manufacture process, makes photoresist layer form the lattice-shaped mask.
Step S160, the impression glue-line is carried out to etching, under the blocking of lattice-shaped mask, make to impress glue-line and form by gridline and mutually intersect the lattice-shaped light shield layer 220 formed, the first groove 222 and the second groove 224 all are opened on gridline, and the impression glue beyond gridline is removed.
Step S170 covers respectively chromatic photoresist in grid cell, forms filter layer 230.Filter unit 232 is formed by chromatic photoresist, and chromatic photoresist is generally red (red, R) photoresistance, green (green, G) photoresistance or indigo plant (blue, B) photoresistance, for making incident light, is transformed into monochromatic light, realizes filtering functions.
Step S180, form conducting bridge 250 and insulation course 260.Described the second conductive pattern unit 244 that described conducting bridge 250 will be positioned at same described the first conductive pattern 242 both sides is electrically connected to, described insulation course 260 is between described conducting bridge 250 and described the first conductive pattern 242, and the described second conductive pattern unit 244 at described conducting bridge 250 and conducting bridge 250 two ends forms the second conductive pattern.Because the conductive thread 270 of the first conductive pattern 242 and the second conductive pattern unit 244 is contained in respectively the first groove 222 and the second groove 224, and the first groove 222 and the second groove 224 are opened on gridline, so the conductive thread 270 of the 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.
Refer to Figure 12, in one embodiment, step S180 specifically can comprise the following steps:
S1810, the complex surfaces that the coating ultraviolet cured adhesive forms in filter layer 230, conductive layer 240 and light shield layer 220, form insulation course 260.Insulation course 260 is transparent, does not affect the transmitance of light.
S1812, impress described insulation course 260, and be cured, and forms the bridge part groove and run through section's groove.Describedly run through that section's groove penetrates described insulation course 260 and to being positioned at described the second conductive pattern unit 244.Need to carry out the contraposition processing, make the protuberance at the mould place of corresponding bridging two ends conducting block press to wear insulation course 260 and be connected and form the bridge part groove and run through section's groove with corresponding the second conductive pattern unit 244.
Step S1814, the filled conductive material is in the bridge part groove and run through section's groove and it is solidified, and forms the conducting bridge 250 that has bridge part 252 and be positioned at the section 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 one in organic conductive macromolecule and ITO.Be preferably metal, as nanometer silver paste.
Refer to Figure 13, in one embodiment, step S180 specifically can comprise the following steps:
Step S1820, the complex surfaces coating photoresist formed at filter layer 230, conductive layer 240 and light shield layer 220 forms photoresist layer.
Step S1822, exposed-developed photoresist layer, and to obtain the photoresist mask layer, described photoresist mask layer is to being positioned at described the second conductive pattern unit 244.This photoresist mask layer runs through section 254 corresponding positions two of follow-up conducting bridge 250.
Step S1824, to the coating of the complex surfaces with photoresist mask layer ultraviolet cured adhesive, form insulation course 260.Insulation course 260 is transparent, does not affect the transmitance of light.
Step S1825, impress described insulation course 260, forms the bridge part groove, and contraposition is processed the two ends of described bridge part groove are connected with the photoresist mask layer.On insulation course 260 surfaces, use the impression block corresponding with required conducting bridge 250 to impress and be cured, obtain forming the bridge part groove.And carry out the contraposition processing, make the two ends of the bridge part groove of conducting bridge 250 be connected with the photoresist mask layer.
Step S1826, remove described photoresist mask layer, forms and be communicated with the second corresponding conductive pattern unit 244 and the section of the running through groove of bridge part groove.
Step S1827, the filled conductive material is in the bridge part groove and run through section's groove and it is solidified, and forms the conducting bridge 250 that has bridge part 252 and be positioned at the section 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 one in organic conductive macromolecule and ITO.Be preferably metal, as nanometer silver paste.
Refer to Figure 14, in one embodiment, step S180 specifically can comprise the following steps:
Step S1830, adopt inkjet printing or screen printing technique to prepare conducting bridge 250 zones at needs and cover 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 the second conductive pattern unit 244 of same described the first conductive pattern 242 relative both sides with electrical connection.Electrically conducting transparent ink material is electrically conducting transparent macromolecular material or nanometer grade gold metal particles, solidifies after-vision transparent.
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 display screen, when this optical filter box is used for touch display screen, can directly make display screen there is touch controllable function, without assemble again a touch-screen on display screen, thereby be conducive to reduce the thickness of electronic product.By being electrically connected of a plurality of second conductive pattern unit 244 of the second conductive pattern, in follow-up, only an electrical leads need to be set for drawing the second conductive pattern by conducting bridge 250, save operation, guarantee 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, while utilizing optical filter box to prepare touch display screen, can reduce attaching process one time, thereby also can save material and enhance productivity.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (9)
1. an optical filter box, comprise 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 the first groove and the second groove away from a side of substrate;
Filter layer, comprise a plurality of spaced filter units, and described filter unit is arranged in described grid cell;
Conductive layer, be embedded at the side of described light shield layer away from described substrate, comprise the first conductive pattern and the second conductive pattern unit, described the second conductive pattern unit is positioned at the relative both sides of described the first conductive pattern, described the first conductive pattern and described the second conductive pattern unit include the conductive grid mutually intersected to form by conductive thread, adjacent conductive thread intersects to form grid node, described the first conductive pattern of conductive grid and described the second space, conductive pattern unit form induction structure, the conductive thread of described the first conductive pattern is contained in described the first groove, the conductive thread of described the second conductive pattern unit is contained in described the second groove,
Conducting bridge and insulation course, described conducting bridge is electrically connected to two the second conductive pattern unit that are positioned at same described the first relative both sides of conductive pattern, described insulation course between described conducting bridge and described the first conductive pattern, described second conductive pattern cell formation second conductive pattern at described conducting bridge and conducting bridge two ends.
2. optical filter box according to claim 1, it is characterized in that, described insulation course covers described the first conductive pattern and the second conductive pattern unit, described conducting bridge is embedded at the side of described insulation course away from described substrate, described conducting bridge comprises bridge part and is electrically connected to respectively the section of running through at described bridge part two ends, described bridge part comprises the conductive grid formed by conductive thread, and described insulation course is run through to be electrically connected to respectively adjacent and to be positioned at two the second conductive pattern unit of described the first relative both sides of conductive pattern in the described section 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 section of running through is connected at least two conductive threads of corresponding the second conductive pattern unit.
5. optical filter box according to claim 1, it is characterized in that, the conducting bridge that described conducting bridge is transparent strip, described conducting bridge covers in described surface of insulating layer, and is electrically connected to two the second conductive pattern unit that are positioned at same described the first relative both sides of 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 the first conductive pattern and the second conductive pattern unit all is less than the live width of described gridline.
8. optical filter box according to claim 1, is characterized in that, at least holds a described filter unit in the scope of each described conductive grid of described the first conductive pattern and described the second conductive pattern unit.
9. 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 optical filter box as claimed in any of claims 1 to 8 in one of claims.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204010342U CN203338309U (en) | 2013-07-05 | 2013-07-05 | Optical filter assembly and touch displaying screen |
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| CN2013204010342U CN203338309U (en) | 2013-07-05 | 2013-07-05 | Optical filter assembly and touch displaying screen |
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| CN203338309U true CN203338309U (en) | 2013-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013204010342U Expired - Fee Related CN203338309U (en) | 2013-07-05 | 2013-07-05 | Optical filter assembly and touch displaying screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203338309U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111384136A (en) * | 2020-02-27 | 2020-07-07 | 武汉天马微电子有限公司 | Display panel and display device |
-
2013
- 2013-07-05 CN CN2013204010342U patent/CN203338309U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111384136A (en) * | 2020-02-27 | 2020-07-07 | 武汉天马微电子有限公司 | Display panel and display device |
| CN111384136B (en) * | 2020-02-27 | 2022-08-16 | 武汉天马微电子有限公司 | Display panel and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
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. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20190705 |