CN103365475A - Optical filter box and touch display screen adopting same - Google Patents
Optical filter box and touch display screen adopting same Download PDFInfo
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- CN103365475A CN103365475A CN2013102827175A CN201310282717A CN103365475A CN 103365475 A CN103365475 A CN 103365475A CN 2013102827175 A CN2013102827175 A CN 2013102827175A CN 201310282717 A CN201310282717 A CN 201310282717A CN 103365475 A CN103365475 A CN 103365475A
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Abstract
An optical filter box includes a substrate, a first embossing glue layer, a first conducting layer, a filter layer, a second embossing glue layer and a second conducting layer, wherein the first embossing glue layer and the second embossing glue layer are positioned on the same side of the substrate; the first conducting layer and the second conducting layer are embedded at the first embossing glue layer and the second embossing glue layer respectively; the projections of conducting wires of the first conducting layer and the second conducting layer, in the filter layer are all on a grid line. The optical filter box, the first conducting layer and the second conducting layer form an induction structure, so that the optical filter box realizes the touch control operation and has the light filtering function, facilitates reduction of the thickness of electronic products, saves material cost and assembly cost; the distance from the first conducting layer to the second conducting layer is smaller, the induction capacitance between the first conducting layer and the second conducting layer is improved, and the sensitivity of the optical filter box is improved; besides, the wire width of the conducting wires can be increased, and the conducting capability of the conducting layers is improved. The invention further provides a touch display screen.
Description
Technical field
The present invention relates to display technique field, plane, particularly relate to a kind of optical filter box and use the touch display screen of this optical filter box.
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 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 of display screen, assemble afterwards, with the formation touch display screen, but touch display screen can have touch control operation and Presentation Function simultaneously again.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 the thin film transistor (TFT) (TFT of successively stack, Thin Film Transistor), therefore display screen itself has had larger thickness, and when continuing on the display screen applying touch-screen, to further increase its thickness, moreover, many one attaching process, just meaning has 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 the higher problem of cost for thickness, a kind of touch display screen that is conducive to reduce the optical filter box of electronic product thickness and production cost and uses this optical filter box is provided.
A kind of optical filter box comprises substrate, also comprises:
The first impression glue-line covers the surface in described substrate, and described the first impression glue-line offers the first groove;
The first conductive layer is embedded at described the first impression glue-line, comprises the first conductive pattern that a plurality of intervals arrange, and described the first conductive pattern comprises conductive grid, and described conductive grid is intersected to form by conductive thread, and described conductive thread is contained in described the first groove;
Filter layer, cover in the side of described the first impression glue-line and the first conductive layer away from described substrate, comprise light shielding part and a plurality of filter unit, described light shielding part is lattice-shaped, comprise cross one another gridline, the space of being cut apart by described gridline forms some grid cells, and each filter unit is contained in the corresponding grid cell, and described a plurality of filter units form optical filtering section;
The second impression glue-line is positioned at the same side of described substrate and covers in the side of described filter layer away from described substrate with described the first impression glue-line, and described the second impression glue-line offers the second groove away from a side of described substrate;
The second conductive layer, be embedded at described the second impression glue-line, comprise the second conductive pattern that a plurality of intervals arrange, described the second conductive pattern comprises conductive grid, described conductive grid is intersected to form by conductive thread, conductive thread intersects to form grid node, and described conductive thread is contained in described the second groove;
Wherein, the conductive thread of described the first conductive layer and the second conductive layer all drops on the described gridline in the projection of described filter layer.
Among embodiment, the live width of described conductive thread is not more than the live width of described gridline therein.
Therein among embodiment, at least one conductive grid and described filter unit similar fitgures each other in described the first conductive layer and described the second conductive layer, the center line of at least one conductive thread is in the projection of described filter layer and the central lines of described gridline in described the first conductive layer and the second conductive layer.
Among embodiment, the thickness of described the first conductive layer is not more than the degree of depth of described the first groove therein, and the thickness of described the second conductive layer is not more than the degree of depth of described the second groove.
Therein among embodiment, the thickness of described optical filtering section is not less than the thickness of described light shielding part.
Therein among embodiment, described light shielding part is the lattice-shaped structure that the photoresist with black dyes forms at described the first impression glue-line.
Among embodiment, the interval width of adjacent two first conductive patterns of described the first conductive layer is 0.5 μ m～50 μ m therein, and the interval width of adjacent two second conductive patterns of described the second conductive layer is 0.5 μ m～50 μ m.
Among embodiment, each described conductive grid projection on described filter layer of described the first conductive layer and described the second conductive layer accommodates at least one filter unit therein.
Therein among embodiment, the filter unit number that the described conductive grid of each of described the first conductive layer holds in filter unit number that the projection on the described filter layer is held and each described conductive grid projection on described filter layer of described the second conductive layer is not identical.
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 above-described optical filter box.
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 greatly saved simultaneously material and assembly cost.
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 is the interval schematic diagram of adjacent two the first conductive patterns or adjacent two the second conductive patterns;
Fig. 8 is the interval schematic diagram of adjacent two the first conductive patterns or adjacent two the second conductive patterns in another embodiment;
Fig. 9 is the structural representation that conductive thread projects to filter layer in the embodiment;
Figure 10 projects to the structural representation of filter layer for conductive thread in another embodiment;
Figure 11 is the structural representation that conductive thread projects to filter layer in the another embodiment;
Figure 12 is again the structural representation that conductive thread projects to filter layer in the embodiment.
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 be in the situation that do similar improvement without prejudice to intension of the present invention, so the present invention is not subjected to the restriction of following public implementation.
Need to prove, 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 simultaneously centering elements.
Unless otherwise defined, the employed all technology of this paper are identical with the implication that belongs to the common understanding of those skilled in the art 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.
The present invention proposes to be conducive to reduce the optical filter box of electronic product thickness and production cost and the touch display screen of this optical filter box of use.This optical filter box can be realized touch operation and filtering functions, thereby makes touch display screen have the touch Presentation Function.
Seeing also 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, need not to arrange diaphragm 50 and 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, such as the OLED polarized light source, need not 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 but optical filter box 200 has touch control operation and filtering functions simultaneously, makes touch display screen 100 have touch display 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 different embodiment of optical filter box.Optical filter box 200 among above-mentioned four embodiment includes substrate 210, the first impression glue-line 220, the first conductive layer 230, filter layer 240, the second impression glue-line 250 and the second conductive layer 260.Substrate 210 is the transparent insulation material, such as glass, is specifically as follows sillico aluminate glass and calcium soda-lime glass, has good cohesive force through the plasma treatment rear surface.General, the thickness range of substrate 210 can be 0.1mm～0.5mm.
The first impression glue-line 220 covers a surface in substrate 210, and the first impression glue-line 220 offers the first groove 222 away from a side of substrate 210.The first groove 222 is the groove of mesh shape, and mesh shape can be preset to required figure as required.The first conductive layer 230 is embedded at the first impression glue-line 220, comprises a plurality of the first conductive patterns 232, and 232 of a plurality of the first conductive patterns are provided with the interval, so that a plurality of the first conductive pattern 232 mutually insulateds.The first conductive pattern 232 comprises some conductive grids that intersected to form by conductive thread 270, and conductive thread 270 intersects to form grid node, and described conductive thread 270 is contained in described the first groove 222.Conductive thread 270 is solidify to form by the conductive material that is filled in the first groove 222, and what conductive material can be among metal, carbon nano-tube, Graphene, organic conductive macromolecule or the ITO is at least a.In other embodiments, can also offer the first groove 222 in a side of the first impression glue-line 220 close substrates 210.
The second impression glue-line 250 and the first impression glue-line 220 are positioned at the same side of substrate 210, and cover in the side of filter layer 240 away from substrate 210.The second impression glue-line 250 offers the second groove 252 away from a side of substrate 210.The second groove 252 is the groove of mesh shape, and mesh shape can be preset to required figure as required.The second conductive layer 260 is embedded at the second impression glue-line 250, comprises a plurality of the second conductive patterns 262.262 of a plurality of the second conductive patterns are provided with the interval, so that a plurality of the second conductive pattern 262 mutually insulateds.The second conductive pattern 262 comprises some conductive grids, and conductive grid is intersected to form by conductive thread 270, and the conductive thread 270 of the second conductive pattern 262 and the conductive thread of the first conductive pattern 232 270 solidify to form by conductive material.Conductive material can be among metal, carbon nano-tube, Graphene, organic conductive macromolecule or the ITO at least a.Conductive thread 270 intersects to form grid node, and conductive thread 270 is contained in the second groove 252.In other embodiments, can also second side that impresses glue-line 250 close substrates 210 offer the second groove 252.
Wherein the conductive thread 270 of the first conductive layer 230 and the second conductive layer 260 all drops on the gridline in the projection of filter layer 240.
Above-mentioned optical filter box 200, the first conductive layers 230 and the second conductive layer 260 consist of the capacitive sensing structure, make optical filter box 200 can realize simultaneously touch control operation and filtering functions, and the design that need not to put up a bridge, and have reduced task difficulty.When above-mentioned optical filter box 200 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 greatly save material and assembly cost.The first impression glue-line 220 and the second impression glue-line 250 are positioned at the same side of substrate simultaneously, so the interval between the first conductive layer 230 and the second conductive layer 260 is less, because the distance of electric capacity and capacitor plate is inversely proportional to, so the inductance capacitance between the first conductive layer 230 and the second conductive layer 260 increases, the sensitivity that is conducive to increase optical filter box 200.When the conductive thread 270 of the first conductive layer 230 and the second conductive layer 260 when the projection of filter layer 240 all drops on the gridline because light shielding part 242 has opaqueness, thereby can not block filter layer 240, can not reduce the transmittance of filter layer 240.
The live width of conductive thread 270 is not more than the width of gridline, and namely the live width of conductive thread 270 is less than or equal to the width of gridline.As shown in Figure 2, the live width of the conductive thread 270 of the first conductive layer 230 and the second conductive layer 260 all equals the width of gridline, to reduce the manufacture difficulty of conductive thread 270.As shown in Figure 3, the live width of the conductive thread 270 of arbitrary conductive layer is less than the width of gridline in the first conductive layer 230 and the second conductive layer 260, and the live width of the conductive thread 270 of another conductive layer equals the width of gridline, is conducive to the optimization of cost of manufacture.As shown in Figure 4 and Figure 5, the live width of the conductive thread 270 of the first conductive layer 230 and the second conductive layer 260 is exposed to the risk of gridline side direction all less than the width of gridline to reduce conductive thread 270.
See also Fig. 5 and Fig. 6, in the present embodiment, optical filtering section 244 comprises chromatic photoresist, is formed with a chromatic photoresist in each grid cell, and chromatic photoresist forms filter unit.Chromatic photoresist is the photoresist formation with coloured dye, can adopt exposure-developing manufacture process.Chromatic photoresist is generally red (red, R) photoresistance, green (green, G) photoresistance or indigo plant (blue, B) photoresistance, is used for making incident light be transformed into monochromatic light, realizes filtering functions.Light shielding part is for being formed at the first impression glue-line 220 with the photoresist of black dyes, and light shielding part 242 is lattice-shaped structure, has opaqueness, can adopt exposure-developing manufacture process.Grid cell is square in the lattice-shaped, so that the photoresistance of optical filtering section 244 is arranged compacter reaching evenly.Light shielding part 242 can effectively be avoided each other colour contamination of chromatic photoresist, and can increase the contrast of R, G, B light.
In the present embodiment, the material of the first impression glue-line 220 and the second impression glue-line 250 is solvent-free ultra-violet curing acrylic resin, and thickness is 2 μ m～10 μ m.The first impression glue-line 220 and the second impression glue-line 250 are transparence, do not affect whole transmitance.In other embodiments, the material of the first impression glue-line 220 and the second impression glue-line 250 can also be On Visible Light Cured Resin or heat reactive resin.
Above-mentioned optical filter box with touch controllable function, the first conductive pattern 232 and the second conductive pattern 262 are the impression mode and form, and concrete steps are as follows:
(1) carrying out plasma (Plasma) on a surface of substrate 210 processes.Removing the dirty of substrate 210 surfaces, and make substrate 210 surface ions, increase cohesive force follow-up and the first impression glue-line 220.
(2) that surface-coated impression glue of processing through Plasma at substrate 210, formation the first impression glue-line 220.The present embodiment adopts solvent-free ultra-violet curing acrylic resin.And use the impression formboard that is nested with the first conductive pattern 232 to impress on the first impression glue-line 220 surfaces and solidify, obtain the first groove 222 with the first conductive pattern 232 couplings.
(3) to the first groove 222 interior filled conductive materials and curing, obtain the first conductive layer 230.Conductive material can be among metal, carbon nano-tube, Graphene, organic conductive macromolecule or the ITO at least a, form the conductive grid that is consisted of by conductive thread 270.Be preferably metal, such as nanometer silver paste.When selecting metal, the energy consumption that can reduce resistance and reduce touch display screen.
(4) cover one deck with the photoresist of black dyes at the first conductive pattern 232 surperficial whole faces.
(5) adopt exposure-developing technique, the photoresist in filter unit zone is removed, form the light shielding part 242 of lattice-shaped, and the conductive thread 270 that guarantees the first conductive layer 230 live width that falls into gridline and conductive thread 270 in the projection of filter layer 240 is not more than the width of gridline.
(6) plate/coat the R/G/B chromatic photoresist in filter unit zone gradation, form optical filtering section 244.Optical filtering section 244 and light shielding part 242 form filter layer 240.
(7) at filter layer 240 surface-coateds impression glue, form the second impression glue-line 250.The present embodiment adopts solvent-free ultra-violet curing acrylic resin.And use the impression block that is nested with the second conductive pattern 262 to impress on the second impression glue-line 250 surfaces and solidify, obtain the second groove 252 that mates with the second conductive pattern 262.
(8) to the second groove 252 interior filled conductive materials and curing, obtain the second conductive layer 260, and guarantee that the conductive thread 270 of the second conductive layer 260 falls into gridline in the projection of filter layer 240, and the live width of conductive thread 270 is not more than the live width of gridline.Conductive material can be metal, carbon nano-tube, Graphene, organic conductive macromolecule or ITO, forms the conductive grid that is made of conductive thread 270.Be preferably metal, such as nanometer silver paste.When selecting metal, the energy consumption that can reduce resistance and reduce touch display screen.
At least one conductive grid and described filter unit similar fitgures each other in described the first conductive layer 230 and described the second conductive layer 260, the center line of at least one conductive thread 270 is in the projection of described filter layer 240 and the central lines of described gridline in described the first conductive layer 230 and the second conductive layer 260.Be conductive thread 270 positive alignment gridlines.Conductive grid is that conductive thread 270 intersects to form, and grid cell is cut apart by gridline and formed, and filter unit is formed at grid cell.So in the present embodiment, the shape that can make conductive grid is identical with the shape of filter unit but vary in size, and namely conductive grid and filter unit similar fitgures each other guarantee that simultaneously conductive grid does not exceed gridline in the projection of filter layer 240.See also Fig. 5, in the present embodiment, the center line of the conductive thread 270 of the first conductive layer 230 and the second conductive layer 260 the projection of filter layer 240 all with the central lines of gridline.Further reduce conductive thread 270 and exposed the probability in gridline zone.
Certainly, in other embodiments, the conductive thread 270 of arbitrary conductive layer is over against gridline in all right the first conductive layer 230 and the second conductive layer 260, the conductive thread 270 of an other conductive layer satisfies the scope that projection at filter layer 240 do not exceed gridline and gets final product, because the first conductive layer 230 and the second conductive layer 260 are blocked by gridline on the backlight exit direction of display screen, the grid cycle stack of conductive grid on the first conductive layer 230 and the second conductive layer 260 and louver (-vre) can not appear, therefore, effectively avoided the Moire fringe phenomenon.
The thickness of described the first conductive layer 230 is not more than the degree of depth of described the first groove 222, and the thickness of described the second conductive layer 260 is not more than the degree of depth of described the second groove 252.In the present embodiment, the thickness of the first conductive layer 230 is less than the thickness of the first groove 222, and the degree of depth of the first groove 222 is less than the thickness of the first impression glue-line 220.The second conductive layer 260 is less than the degree of depth of the second groove 252, and the degree of depth of the second groove 252 is less than the thickness of the second impression glue-line 250, can prevent the first conductive layer 230 and the second conductive layer 260 form after in subsequent technique by scratch.
See also Fig. 5, in the present embodiment, the thickness of optical filtering section 244 is not less than the thickness of light shielding part 242.That is to say that the thickness of filter unit is greater than or equal to the thickness of gridline.When the thickness of optical filtering section 244 during greater than the thickness of light shielding part 242, from the light that optical filtering section 244 appears, not only can see from the front, also can see from the side, thereby can increase the light emission rate of optical filtering section 244.
In the present embodiment, adjacent two conductive patterns arrange the interval, with mutually insulated.As shown in Figure 7 and Figure 8, the schematic diagram of the different modes at the interval of adjacent two the first conductive patterns 232 or adjacent two the second conductive patterns 262.As shown in Figure 7, in one embodiment, expression be the width that the interval width of adjacent two the first conductive patterns 232 or adjacent two the second conductive patterns 262 is a filter unit.Can by full line or permutation conductive thread 270 disappearances, cut off this moment.As shown in Figure 8, in other embodiments, can also adjacent two the first conductive patterns 232 or the interval width of adjacent two the second conductive pattern 262 be 0.5 μ m～50 μ m.This moment can be by cutting off conductive thread 270 marginal portions disappearance.In other embodiments, interval width that also can adjacent two the first conductive patterns 232 is the width of a filter unit, and the interval width of adjacent two the second conductive patterns 262 is 0.5 μ m～50 μ m.
See also Fig. 6, in the present embodiment, conductive thread 270 is straight line, curve or broken line.When conductive thread 270 can be for difformity, reduced production requirement.
As shown in Figure 9, the projection of each conductive grid on filter layer 240 of the first conductive layer 230 and the second conductive layer 260 accommodates a filter unit.Because the conductive thread 270 of the first conductive layer 230 and the second conductive layer 260 is all aimed at gridline, so the filter unit that holds 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.
To shown in Figure 12, the projection of each conductive grid on filter layer 240 of the first conductive layer 230 and the second conductive layer 260 accommodates at least two filter units such as Figure 10.Because the conductive thread 270 of the first conductive layer 230 and the second conductive layer 260 is all aimed at gridline, so it is individual that the filter unit that holds is integer, quantity is at least two, can be according to the resistance of conductive layer being required and the requirement of the coating weight of conductive material decides the filter unit quantity of holding.
Can be divided into three kinds of situations this moment, and take laterally as X-axis, the direction of vertical transverse is Y-axis.As shown in figure 10, only on X-direction, at least two filter units are held in the projection of each conductive grid on filter layer 240 of the first conductive layer 230 and the second conductive layer 260.As shown in figure 11, only on Y direction, at least two filter units are held in the projection of each conductive grid on filter layer 240 of the first conductive layer 230 and the second conductive layer 260.As shown in figure 12, on X-axis and Y direction, at least two filter units are held in the projection of each conductive grid on filter layer 240 of the first conductive layer 230 and the second conductive layer 260 simultaneously.
In the present embodiment, the filter unit number that the filter unit number that the projection of each conductive grid on filter layer 240 of the first conductive layer 230 held and the projection of each conductive grid on filter layer of the second conductive layer 260 are held can be not identical.Can effectively reduce manufacture difficulty.Certainly, in other embodiment, the filter unit number that the projection of each conductive grid on filter layer 240 of the first conductive layer 230 held is all right identical with the filter unit number that the projection of each conductive grid on filter layer of the second conductive layer 260 held.
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 (10)
1. an optical filter box comprises substrate, it is characterized in that, also comprises:
The first impression glue-line covers the surface in described substrate, and described the first impression glue-line offers the first groove;
The first conductive layer is embedded at described the first impression glue-line, comprises the first conductive pattern that a plurality of intervals arrange, and described the first conductive pattern comprises conductive grid, and described conductive grid is intersected to form by conductive thread, and described conductive thread is contained in described the first groove;
Filter layer, cover in the side of described the first impression glue-line and the first conductive layer away from described substrate, comprise light shielding part and a plurality of filter unit, described light shielding part is lattice-shaped, comprise cross one another gridline, the space of being cut apart by described gridline forms some grid cells, and each filter unit is contained in the corresponding grid cell, and described a plurality of filter units form optical filtering section;
The second impression glue-line is positioned at the same side of described substrate and covers in the side of described filter layer away from described substrate with described the first impression glue-line, and described the second impression glue-line offers the second groove;
The second conductive layer is embedded at described the second impression glue-line, comprises the second conductive pattern that a plurality of intervals arrange, and described the second conductive pattern comprises conductive grid, and described conductive grid is intersected to form by conductive thread, and described conductive thread is contained in described the second groove;
Wherein, the conductive thread of described the first conductive layer and the second conductive layer all drops on the described gridline in the projection of described filter layer.
2. optical filter box according to claim 1 is characterized in that, the live width of described conductive thread is not more than the live width of described gridline.
3. optical filter box according to claim 1, it is characterized in that, at least one conductive grid and described filter unit similar fitgures each other in described the first conductive layer and described the second conductive layer, the center line of at least one conductive thread is in the projection of described filter layer and the central lines of described gridline in described the first conductive layer and the second conductive layer.
4. optical filter box according to claim 1 is characterized in that, the thickness of described the first conductive layer is not more than the degree of depth of described the first groove, and the thickness of described the second conductive layer is not more than the degree of depth of described the second groove.
5. optical filter box according to claim 1 is characterized in that, the thickness of described optical filtering section is not less than the thickness of described light shielding part.
6. optical filter box according to claim 1 is characterized in that, described light shielding part is the lattice-shaped structure that forms at described the first impression glue-line with the photoresist of black dyes.
7. optical filter box according to claim 1, it is characterized in that, the interval width of adjacent two first conductive patterns of described the first conductive layer is 0.5 μ m～50 μ m, and the interval width of adjacent two second conductive patterns of described the second conductive layer is 0.5 μ m～50 μ m.
8. optical filter box according to claim 1 is characterized in that, each described conductive grid projection on described filter layer of described the first conductive layer and described the second conductive layer accommodates at least one filter unit.
9. optical filter box according to claim 8, it is characterized in that, the filter unit number that the described conductive grid of each of described the first conductive layer holds in filter unit number that the projection on the described filter layer is held and each described conductive grid projection on described filter layer of described the second conductive layer is not identical.
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 the described optical filter box of any one in the claim 1 to 9.
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| CN114488645A (en) * | 2022-02-14 | 2022-05-13 | 成都捷翼电子科技有限公司 | Multifunctional upper layer structure based on electrophoretic display and manufacturing method |
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| CN114488645A (en) * | 2022-02-14 | 2022-05-13 | 成都捷翼电子科技有限公司 | Multifunctional upper layer structure based on electrophoretic display and manufacturing method |
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