CN103336614A - Light polarizing-filtering module and touch display screen using same - Google Patents
Light polarizing-filtering module and touch display screen using same Download PDFInfo
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- CN103336614A CN103336614A CN2013102821268A CN201310282126A CN103336614A CN 103336614 A CN103336614 A CN 103336614A CN 2013102821268 A CN2013102821268 A CN 2013102821268A CN 201310282126 A CN201310282126 A CN 201310282126A CN 103336614 A CN103336614 A CN 103336614A
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Abstract
A light polarizing-filtering module comprises a light filtering assembly and a light polarizing assembly. The light filtering assembly comprises a transparent substrate, a light filtering layer, a first imprinting glue layer and a first conducting layer. The first conducting layer comprises a plurality of first electric conduction units which are arranged in parallel at intervals in the first direction. The light polarizing assembly comprises a light polarizing plate and a second conducting layer. The second conducting layer comprises a plurality of second electric conduction units which are arranged in parallel at intervals in the second direction. All projections, on the light filtering layer, of electric conduction silk-covered wires of the first conducting layer and the second conducting layer fall on grid wires, and the first direction is not parallel to the second direction. When used in a display screen, the light polarizing-filtering module can directly enable the display screen to have the function of touch control. A touch screen is not needed to be assembled on the display screen. Therefore, reduction of the thickness of an electronic product is facilitated, and meanwhile material and assembly cost are greatly saved.
Description
Technical field
The present invention relates to the touch technology field, particularly relate to a kind of polarisation-optical filtering module and use the touch display screen of this polarisation-optical filtering module.
Background technology
Touching display device and given information interaction brand-new looks, is extremely attractive brand-new information interaction equipment.The development that touches the display device 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.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.
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 again afterwards, to form touch display screen, cause touch display screen thickness thick partially.
Summary of the invention
Based on this, be necessary the polarisation-optical filtering module that provides a kind of thickness less and the touch display screen that uses this polarisation-optical filtering module.
A kind of polarisation-optical filtering module comprises:
Filtering assembly comprises transparent substrates; And
Filter layer, comprise light shielding part and optical filtering portion, described light shielding part is intersected to form mutually by gridline, and described gridline intersects to form a plurality of grid cells mutually, described optical filtering portion comprises a plurality of filter units, and each described filter unit is contained in the corresponding described grid cell; And
The first impression glue-line is arranged at described transparent substrates homonymy with described filter layer is stacked, and the described first impression glue-line offers first groove; And
First conductive layer, be embedded at the described first impression glue-line, comprise a plurality of first conductive units that arrange along the first direction parallel interval, described first conductive unit comprises conductive grid, conductive grid is intersected to form mutually by conductive thread, conductive thread intersects to form grid node, and described conductive thread is contained in described first groove;
The polarisation assembly is attached to described transparent substrates away from a side of described first conductive layer; Comprise polaroid, and second conductive layer that is arranged at described polaroid one side, described second conductive layer comprises a plurality of second conductive units that arrange along the second direction parallel interval, described second conductive unit comprises conductive grid, conductive grid is intersected to form mutually by conductive thread, and conductive thread intersects to form grid node;
Described first direction and described second direction are not parallel, described first conductive unit and described second conductive unit mutually insulated on the thickness direction of described transparent substrates, the conductive thread of the conductive thread of described first conductive layer and second conductive layer all falls into described gridline in the projection of described filter layer.
Among embodiment, the live width of the conductive thread of the conductive thread of described first conductive layer and described second conductive layer all is not more than the live width of described gridline therein.
Among embodiment, described second conductive layer directly is formed at the surface of described polaroid therein.
Therein among embodiment, described polarisation assembly also comprises the second impression glue-line, the described second impression glue-line is coated a side of described polaroid, and the described second impression glue-line offers second groove, and the conductive thread of described second conductive layer is contained in described second groove.
Among embodiment, the thickness of described first conductive layer is not more than the degree of depth of described first groove, and/or the thickness of described second conductive layer is not more than the degree of depth of described second groove therein.
Among embodiment, the interval width of two adjacent first conductive units of described first conductive layer is 0.5 μ m～50 μ m therein, and the interval width of two adjacent second conductive units of described second conductive layer is 0.5 μ m～50 μ m.
Among embodiment, be provided with the first impression glue-line of first conductive layer between described transparent substrates and described filter layer therein.
Among embodiment, the first impression glue-line that is provided with first conductive layer is positioned at described filter layer away from a side of described transparent substrates therein.
A kind of touch display screen comprises the TFT electrode, Liquid Crystal Module and the described polarisation-optical filtering module that stack gradually.
Among embodiment, described first conductive layer is towards described Liquid Crystal Module therein.
Above-mentioned polarisation-optical filtering module and use the touch display screen of this polarisation-optical filtering module, polarisation-optical filtering module can realize touch operation, polarized light function and filtering functions simultaneously, as an indispensable assembly 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.
Description of drawings
Fig. 1 is the structural representation of the touch display screen of an embodiment;
Fig. 2 is the structural representation of polarisation-optical filtering module of embodiment one;
Fig. 3 is first conductive layer of polarisation shown in Figure 2-optical filtering module and the structural representation of second conductive layer;
Fig. 4 is the structural representation of polarisation-optical filtering module of embodiment two;
Fig. 5 is the structural representation of polarisation-optical filtering module of embodiment three;
Fig. 6 is the structural representation of polarisation-optical filtering module of embodiment four;
Fig. 7 is the structural representation of polarisation-optical filtering module of embodiment five;
Fig. 8 is the structural representation of polarisation-optical filtering module of embodiment six;
Fig. 9 is the interval synoptic diagram of two adjacent first conductive units or two adjacent second conductive units;
Figure 10 is the interval synoptic diagram of two adjacent first conductive units or two adjacent second conductive units in another embodiment;
Figure 11 is the structural representation that conductive thread projects to filter layer in the embodiment;
Figure 12 projects to the structural representation of filter layer for conductive thread in another embodiment;
Figure 13 projects to the structural representation of filter layer for conductive thread in the another embodiment;
Figure 14 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 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.
See also Fig. 1, the touch display screen 100 of an embodiment comprises TFT electrode 20, Liquid Crystal Module 30 and the polarisation-optical filtering module 60 that stacks gradually.Wherein, can away from a side of Liquid Crystal Module 30 polaroid 10 down be set at TFT electrode 20, between Liquid Crystal Module 30 and polarisation-optical filtering module 60, public electrode 40, diaphragm 50 be set.
Be appreciated that when using backlight as polarized light source, as the OLED polarized light source, need not to use down polaroid 10.In certain embodiments, when described touch display screen 100 was the wide-angle liquid crystal display, liquid crystal 32 drove for the TFT electrode 20 that is positioned at the one side, so can not establish public electrode 40 in addition.Structure and the function of the following polaroid 10 of present embodiment, TFT electrode 20, Liquid Crystal Module 30 and public electrode 40 can be identical with existing product, do not repeat them here.
Polarisation-optical filtering module 60 has touch control operation, polarized light function and filtering functions simultaneously, makes touch display screen 100 have the touch Presentation Function.Display screen can be the LCDs of straight-down negative or side entering type light source.
Following emphasis is described polarisation-optical filtering module 60.
Touch display device and comprise that also control drives chip and flexible circuit board, for the purpose of simplifying the description, these two parts do not illustrate in this application.
See also Fig. 2 and Fig. 3, a kind of polarisation-optical filtering module 60 comprises optical filter box 62 and polarisation assembly 64.
It is the groove of mesh shape that the first impression glue-line 626 offers first groove, 6262, the first grooves 6262 away from the surface of transparent substrates 622, and mesh shape can be preset to required figure as required.First conductive layer 628 is embedded at the first impression glue-line 626, just first conductive layer 628, the first impression glue-line 626 and filter layer 624 all are positioned at transparent substrates 622 homonymies, as shown in Figure 2, expression is to be provided with the first impression glue-line 626 of first conductive layer 628 between filter layer 628 and transparent substrates 622.As shown in Figure 4, expression is that the first impression glue-line 626 that is provided with first conductive layer 628 is positioned at filter layer 624 away from a side of transparent substrates 622.First conductive layer 628 comprises a plurality of first conductive units 6282 that arrange along the first direction parallel interval, so that 6282 insulation of a plurality of first conductive unit.First conductive unit 6282 comprises some conductive grids, and conductive grid is intersected to form mutually by conductive thread a, and conductive thread a intersects to form grid node, and conductive thread a is contained in first groove 6262.In other embodiments, can also offer first groove 6262 in a side of the first impression glue-line, 626 close transparent substrates 622.
Wherein, first direction and second direction are not parallel, and first conductive unit 6282 and second conductive unit 6442 mutually insulated on transparent substrates 622 thickness directions forms induction structure.The conductive thread a of the conductive thread a of first conductive layer 628 and second conductive layer 644 all falls into gridline in the projection of filter layer 624.
Above-mentioned polarisation-optical filtering module 60, first conductive layer 628 is arranged at optical filter box 62, second conductive layer 644 is arranged at polarisation assembly 64, again optical filter box 62 and polarisation assembly 64 are fitted, first conductive layer 628 and second conductive layer 644 arrange at interval and constitute the capacitive sensing structure, can realize touch operation, polarized light function and filtering functions simultaneously, and the design that need not to put up a bridge, task difficulty reduced.With polarisation-when optical filtering module 60 is applied to display screen, can directly make display screen have touch controllable function, need not again not only to be conducive to reduce the thickness of electronic product at display screen assembling one touch-screen, also saved material and assembly cost greatly.When the conductive thread a of first conductive layer 628 and second conductive layer 644 when the projection of filter layer 624 all falls into gridline, because light shielding part 6242 has opaqueness, can make conductive thread a not exceed gridline, thereby can not block filter layer 624, guarantee filter layer 624 concrete good transmittances.
As shown in Figure 2, in embodiment one, the live width of the conductive thread a of the conductive thread a of first conductive layer 628 and second conductive layer 644 all is not more than the width of gridline, and namely the live width of conductive thread a is less than or equal to the width of gridline.Wherein, the live width of the conductive thread a of the conductive thread a of first conductive layer 628 and second conductive layer 644 all equals the width of gridline, can reduce the manufacture difficulty of conductive thread a.The live width of the conductive thread a of arbitrary conductive layer is less than the width of gridline in first conductive layer 628 and second conductive layer 644, and the live width of the conductive thread a of another conductive layer equals the width of gridline, is conducive to the optimization of cost of manufacture.As shown in Figure 2, expression be the live width of conductive thread a of the conductive thread a of first conductive layer 628 and second conductive layer 644 all less than the width of gridline, can reduce the risk that conductive thread a is exposed to the gridline side direction.
See also Fig. 2, in embodiment one, conductive thread a is straight line, curve or broken line.Conductive thread a does not have the given shape requirement, has reduced production requirement.
See also Fig. 4 and Fig. 5, in embodiment two and embodiment three, second conductive layer 644 directly is formed at the surface of described polaroid 642.Conductive material is established in a surface-coated or plating at polaroid 642, and the coating photoresist carries out exposure imaging to described photoresist, makes photoresist form a plurality of second conductive units 6442; Etching to remove second conductive unit, 6442 districts conductive material exposed part in addition, forms second conductive layer 644 with a plurality of second conductive units 6442.So, second conductive layer 644 is directly formed and polaroid 642 surfaces, be conducive to reduce the thickness of polarisation assembly 64.As Fig. 4, expression be that second conductive layer 644 is formed at polaroid 642 away from the surface of transparent substrates 622.As Fig. 5, expression be that second conductive layer 644 is formed at polaroid 642 near the surface of transparent substrates 622.
See also Fig. 6 and Fig. 7, in embodiment four and embodiment five, polarisation assembly 64 comprises the second impression glue-line 646, the second impression glue-line 646 is coated a side of polaroid 642, the second impression glue-line 646 is contained in second groove 6462 away from the conductive thread a that the surface of polaroid 642 offers second groove, 6462, the second conductive layers 644.Form the second impression glue-line 646 at polarisation assembly 64 surface coating impression glue, offer second groove 6462 at the second impression glue-line 646 away from the surface of polaroid 642, second groove 6462 is the groove of mesh shape, mesh shape can be preset to required figure as required, the filled conductive material solidify to form conductive thread a in second groove 6462, and conductive thread a intersects to form second conductive layer 644 mutually.By the second impression glue-line 646 is set, and to the second impression glue-line, 646 impressions, second groove 6462, and then second filled conductive material in the groove 6462 and sintering curing form second conductive layer 644, easy and simple to handle and cost is lower, can also guarantee that polarisation-optical filtering module 60 has lower side's resistance, higher transmittance and less thickness etc. simultaneously.As Fig. 6, expression be second the impression glue-line 646 coat polaroid 642 away from the surface of transparent substrates 622.As Fig. 7, expression be that the second teeth mark glue-line is coated polaroid 642 near the surface of transparent substrates 622.In other embodiments, can also offer second groove 6462 near a side of polaroid 642 at the second impression glue-line 646.
In the present embodiment, the material of the first impression glue-line 626 and the second impression glue-line 646 is solvent-free ultra-violet curing acrylic resin, and thickness is 2～10 μ m.The first impression glue-line 626 and the second impression glue-line 646 are transparence, do not influence whole transmitance.In other embodiments, the material of the first impression glue-line 626 and the second impression glue-line 646 can also be visible-light curing resin or heat reactive resin.
Conductive material can be metal, carbon nano-tube, Graphene, organic conductive macromolecule or ITO, forms the conductive grid that is made of conductive thread a.Be preferably metal, as nanometer silver paste.When selecting metal for use, the energy consumption that can reduce resistance and reduce touch display screen.So, the material selected for use of first conductive layer 628 and second conductive layer 644 only expands all suitable conductive materials to transparent material by tradition; When conductive material is selected metal material for use, the energy consumption that can reduce resistance greatly and reduce touch display screen.
See also Fig. 8, in embodiment six, the thickness of first conductive layer 628 is not more than the degree of depth of first groove 6262, and/or the thickness of second conductive layer 644 is not more than the degree of depth of second groove 6462.In present embodiment, the thickness of first conductive layer 628 is less than the thickness of first groove 6262, and the degree of depth of first groove 6262 is less than the thickness of the first impression glue-line 626.Second conductive layer 644 is less than the degree of depth of second groove 6462, and the degree of depth of second groove 6462 is less than the thickness of the second impression glue-line 646, can prevent first conductive layer 628 and second conductive layer 644 form the back in subsequent technique by scratch.
See also Fig. 8, in embodiment six, optical filtering portion 6244 comprises a plurality of filter units 6245.Filter unit 6245 is the chromatic photoresist of printing opacity, is specially the photoresist that has coloured dye and forms, and can adopt exposure-developing manufacture process.That filter unit 6245 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.Light shielding part 6242 is formed at a side of transparent substrates 622 for the photoresist that has black dyes, and light shielding part 6242 is lattice-shaped, has opaqueness, can adopt exposure-developing manufacture process.Grid cell 6243 is square in the lattice-shaped, makes the photoresistance of optical filtering portion 6244 arrange compacter and even.Light shielding part 6242 can effectively be avoided chromatic photoresist colour contamination each other, and can increase the contrast of R, G, B light.
The above-mentioned optical filter box 62 that has touch controllable function, the polarisation with touch control operation function-optical filtering module 60 as shown in Figure 6 and Figure 7, when first conductive layer 628 and second conductive layer 644 all adopt the impression mode to prepare, and first conductive layer 628 and the first impression glue-line 626 cover in filter layer 624 during away from transparent substrates 622 1 sides, and its manufacturing process is as follows:
(1) surface of glass baseplate 622 is at first carried out plasma (Plasma) and handle, remove the dirty of surface, and make surface ionization, increase follow-up and cohesive force other material.
(2) a whole face in surface at glass baseplate 622 is coated with/plates the photoresist layer that has black dyes.
(3) adopt exposure-developing technique, the photoresist in filter unit 6245 zones is removed, form the light shielding part 6242 of lattice-shaped.
(4) in grid cell 6243 gradation the R/G/B chromatic photoresist is set, forms optical filtering portion 6244, to obtain the filter layer 624 of concrete light shielding part 6242 and optical filtering portion 6244.
(5) at the surface coating impression glue (present embodiment adopt PMMA UV cured resin) of filter layer 624 away from glass baseplate, form the first impression glue-line 626, and the impression block of using the conductive grid with first conductive layer 628 to be nested impresses on the first impression glue surface and solidifies, first groove, 6262, the first grooves 6262 that obtain mating with required first conductive layer 628 are latticed.
(6) to 6262 interior filled conductive materials and the curing of first groove.Conductive material can be metal simple-substance or alloy, carbon nano-tube, Graphene, organic conductive macromolecule or ITO, forms by conductive thread a to intersect the conductive grid that constitutes mutually.Preferably, conductive material is metal (as nanometer silver paste), obtains having the optical filter box 62 of first conductive layer 628.
(7) the surface coating at polaroid 642 impresses glue (present embodiment employing polymethylmethacrylate (polymethylmethacrylate, PMMA) UV cured resin), form the second impression glue-line 646, and the impression block of using the conductive grid with second conductive layer 644 to be nested impresses on the second impression glue surface and solidifies, second groove, 6462, the second grooves 6462 that obtain mating with required second conductive layer 644 are latticed.
(8) filled conductive materials and solidifying in second groove 6462, conductive material can be metal simple-substance or alloy, carbon nano-tube, Graphene, organic conductive macromolecule or ITO, forms by conductive thread a to intersect the conductive grid that constitutes mutually.Preferably, conductive material is metal (as nanometer silver paste), obtains having the polarisation assembly 64 of second conductive layer 644.
(9) optical filter box 62 is bondd by transparent adhesive away from a side of first conductive layer 628 and the polarisation assembly 64 that has second conductive layer 644 and solidify, obtain having the polarisation-optical filtering module 60 of touch control operation function.
The polarisation with touch control operation function-optical filtering module 60 as shown in Figure 2, when first conductive layer 628 prepares by the impression mode, first conductive layer 628 and the first impression glue-line 626 are all between filter layer 624 and transparent substrates 622, and when second conductive layer 644 prepared by being coated with or plating again etched mode, its manufacturing process was as follows:
(1) surface of glass baseplate 622 is at first carried out plasma (Plasma) and handle, remove the dirty of surface, and make surface ionization, increase follow-up and cohesive force other material.
(2) the surface coating at glass baseplate impresses glue (present embodiment adopts PMMA UV cured resin), form the first impression glue-line 626, and the impression block of using the conductive grid with first conductive layer 628 to be nested impresses on the first impression glue surface and solidifies, first groove, 6262, the first grooves 6262 that obtain mating with required first conductive layer 628 are latticed.
(3) to 6262 interior filled conductive materials and the curing of first groove.Conductive material can be metal simple-substance or alloy, carbon nano-tube, Graphene, organic conductive macromolecule or ITO, forms by conductive thread a to intersect the conductive grid that constitutes mutually.Preferably, conductive material is metal (as nanometer silver paste), obtains first conductive layer 628.
(4) be coated with or plate the photoresist layer that has black dyes on the surface that the first impression glue-line 626 is provided with first conductive layer 628.
(5) adopt exposure-developing technique, the photoresist in filter unit 6245 zones is removed, form the light shielding part 6242 of lattice-shaped.
(6) in grid cell 6243 gradation the R/G/B chromatic photoresist is set, forms optical filtering portion 6244, obtain having the filter layer 624 of light shielding part 6242 and optical filtering portion 6244, thereby obtain having the optical filter box 62 of first conductive layer 628.
(7) the surperficial whole face at polaroid 642 is coated with/plates conductive material, and conductive material can be metal simple-substance, metal alloy, carbon nano-tube, Graphene, organic conductive macromolecule or ITO.
(8) the polaroid 642 surface coating one deck photoresists that are being provided with conductive material, utilize the mask version corresponding with the conductive grid of second conductive layer 644 that photoresist is exposed-develops, only keep the photoresist of the conductive grid part that covers second conductive layer 644, the photoresist that all the other are local is removed.
(9) utilize lithographic technique that above-mentioned conductive material is carried out etching, obtain second conductive unit 6442 separate, insulation, thereby obtain having the polarisation assembly 64 of second conductive layer 644.
(10) optical filter box 62 is bondd by transparent adhesive away from a side of first conductive layer 628 and the polarisation assembly 64 that has second conductive layer 644 and solidify, obtain having the polarisation-optical filtering module 60 of touch control operation function.
Therein among embodiment, at least one conductive grid and filter unit 6245 similar fitgures each other in first conductive layer 628 and second conductive layer 644, the center line of at least one conductive thread a is in the projection of filter layer 624 and the central lines of gridline in first conductive layer 628 and second conductive layer 644.It is conductive thread a positive alignment gridline.Conductive grid intersects to form for conductive thread a, and grid cell 6243 is cut apart by gridline and formed, and filter unit 6245 is formed at grid cell 6243.
See also Fig. 8, in embodiment six, the center line of the conductive thread a of first conductive layer 628 and second conductive layer 644 the projection of filter layer 624 all with the central lines of gridline, vary in size so the shape that can make conductive grid is identical with the shape of filter unit 6245, be conductive grid and filter unit 6245 similar fitgures each other, guarantee that simultaneously conductive grid does not exceed gridline in the projection of filter layer 624, further reduced conductive thread a and exposed the probability in gridline zone.Certainly, in other embodiments, the conductive thread a of arbitrary conductive layer is over against gridline in all right first conductive layer 628 and second conductive layer 644, the conductive thread a of an other conductive layer satisfies the scope that projection at filter layer 624 do not exceed gridline and gets final product, because first conductive layer 628 and second conductive layer 644 are blocked by gridline on the backlight exit direction of display screen, the grid cycle stack of conductive grid on first conductive layer 628 and second conductive layer 644 and louver (-vre) can not appear, therefore, effectively avoided the Moire fringe phenomenon.
Among embodiment, the thickness of optical filtering portion 6244 is not less than the thickness of light shielding part 6242 therein.That is to say that the thickness of filter unit 6245 is greater than or equal to the thickness of gridline.When the thickness of optical filtering portion 6244 during greater than the thickness of light shielding part 6242, from the light that optical filtering portion 6244 appears, not only can see from the front, also can see from the side, thereby can increase the light emission rate of optical filtering portion 6244.
In present embodiment, two adjacent conductive unit arrange at interval, with mutually insulated.As Fig. 9 and shown in Figure 10, the synoptic diagram of the different modes at the interval of two adjacent first conductive units 6282 or two adjacent second conductive units 6442.As shown in Figure 9, in one embodiment, expression be the width that the interval width of two adjacent conductive unit in two first adjacent conductive units 6282 or two the second adjacent conductive units 6442 is a filter unit 6245.Can cut off this moment by full line or permutation conductive thread a disappearance.As shown in figure 10, in another embodiment, can also two first adjacent conductive units 6282 and the interval width of two second adjacent conductive units 6442 be 0.5～50 μ m.This moment can be by cutting off conductive thread a marginal portion disappearance.In other embodiments, can two first adjacent conductive units 6282 be the width of a filter unit 6245 also, the interval width of two second adjacent conductive units 6442 is 0.5～50 μ m.
As shown in figure 11, the projection of each conductive grid on filter layer 624 of first conductive layer 628 and second conductive layer 644 accommodates a filter unit 6245.Because the conductive thread a of first conductive layer 628 and second conductive layer 644 all aims at gridline, so the filter unit 6245 that holds is individual for integer, quantity is one.Because each grid cell 6243 is to there being a conductive grid, so the density of conductive grid is bigger, electric conductivity is better.
To shown in Figure 14, the projection of each conductive grid on filter layer 624 of first conductive layer 628 and second conductive layer 644 accommodates at least two filter units 6245 as Figure 12.Because the conductive thread a of first conductive layer 628 and second conductive layer 644 all aims at gridline, so the filter unit 6245 that holds is individual for 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 filter unit 6245 quantity of holding.
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 12, only on X-direction, at least two filter units 6245 are held in the projection of each conductive grid on filter layer 624 of first conductive layer 628 and second conductive layer 644.As shown in figure 13, only on Y direction, at least two filter units 6245 are held in the projection of each conductive grid on filter layer 624 of first conductive layer 628 and second conductive layer 644.As shown in figure 14, on X-axis and Y direction, at least two filter units 6245 are held in the projection of each conductive grid on filter layer 624 of first conductive layer 628 and second conductive layer 644 simultaneously.
In present embodiment, each conductive grid of first conductive layer 628 can be inequality with filter unit 6245 numbers that the projection of each conductive grid on filter layer 624 of second conductive layer 644 held at filter unit 6245 numbers that the projection on the filter layer 624 is held.Can effectively reduce manufacture difficulty.Certainly, in other embodiments, each conductive grid of first conductive layer 628 is counted all right identical at filter unit 6245 numbers that the projection on the filter layer 624 is held with the filter unit 6245 that the projection of each conductive grid on filter layer 624 of second conductive layer 644 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. polarisation-optical filtering module is characterized in that, comprising:
Filtering assembly comprises transparent substrates; And
Filter layer, comprise light shielding part and optical filtering portion, described light shielding part is intersected to form mutually by gridline, and described gridline intersects to form a plurality of grid cells mutually, described optical filtering portion comprises a plurality of filter units, and each described filter unit is contained in the corresponding described grid cell; And
The first impression glue-line is arranged at described transparent substrates homonymy with described filter layer is stacked, and the described first impression glue-line offers first groove; And
First conductive layer, be embedded at the described first impression glue-line, comprise a plurality of first conductive units that arrange along the first direction parallel interval, described first conductive unit comprises conductive grid, conductive grid is intersected to form mutually by conductive thread, conductive thread intersects to form grid node, and described conductive thread is contained in described first groove;
The polarisation assembly is attached to described transparent substrates away from a side of described first conductive layer; Comprise polaroid, and second conductive layer that is arranged at described polaroid one side, described second conductive layer comprises a plurality of second conductive units that arrange along the second direction parallel interval, described second conductive unit comprises conductive grid, conductive grid is intersected to form mutually by conductive thread, and conductive thread intersects to form grid node;
Described first direction and described second direction are not parallel, described first conductive unit and described second conductive unit mutually insulated on the thickness direction of described transparent substrates, the conductive thread of the conductive thread of described first conductive layer and second conductive layer all falls into described gridline in the projection of described filter layer.
2. polarisation according to claim 1-optical filtering module is characterized in that, the live width of the conductive thread of the conductive thread of described first conductive layer and described second conductive layer all is not more than the live width of described gridline.
3. polarisation according to claim 1-optical filtering module is characterized in that, described second conductive layer directly is formed at the surface of described polaroid.
4. polarisation according to claim 1-optical filtering module, it is characterized in that, described polarisation assembly also comprises the second impression glue-line, the described second impression glue-line is coated a side of described polaroid, the described second impression glue-line offers second groove, and the conductive thread of described second conductive layer is contained in described second groove.
5. polarisation according to claim 4-optical filtering module is characterized in that, the thickness of described first conductive layer is not more than the degree of depth of described first groove, and/or the thickness of described second conductive layer is not more than the degree of depth of described second groove.
6. polarisation according to claim 1-optical filtering module, it is characterized in that, the interval width of two adjacent first conductive units of described first conductive layer is 0.5 μ m～50 μ m, and the interval width of two adjacent second conductive units of described second conductive layer is 0.5 μ m～50 μ m.
7. polarisation according to claim 1-optical filtering module is characterized in that, is provided with the first impression glue-line of first conductive layer between described transparent substrates and described filter layer.
8. polarisation according to claim 1-optical filtering module is characterized in that, the first impression glue-line that is provided with first conductive layer is positioned at described filter layer away from a side of described transparent substrates.
9. a touch display screen is characterized in that, comprises the TFT electrode that stacks gradually, Liquid Crystal Module and as any described polarisation-optical filtering module in the claim 1～8.
10. touch display screen according to claim 10 is characterized in that, described first conductive layer is towards described Liquid Crystal Module.
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| CN2013102821268A CN103336614A (en) | 2013-07-05 | 2013-07-05 | Light polarizing-filtering module and touch display screen using same |
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| CN2013102821268A CN103336614A (en) | 2013-07-05 | 2013-07-05 | Light polarizing-filtering module and touch display screen using same |
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Application publication date: 20131002 |