CN103365474A - Polarized light and lighting filtering module and touch display screen - Google Patents

Abstract

The invention discloses a polarized light and lighting filtering module, which comprises a polarizer component and a light filter component, wherein the polarizer component comprises a polarizer and a first conducting layer arranged on one side of the polarizer, and the light filter component comprises a transparent substrate, as well as a light filtering layer and a second conducting layer positioned on the same side of the transparent substrate. The polarized light and light filtering module can simultaneously realize the touch operation, the polarized light function and the light filtering function, by acting as one indispensable component of a display screen, the polarized light and light filtering module directly enables the display screen to have the touch control function during being used in the display screen, and another touch screen is not required to be assembled, so that not only is the thickness of an electric product reduced, but also the material and the assembly cost are greatly saved at the same time. In addition, the invention further provides a touch display screen.

Description

Polarisation optical filtering module and touch display screen

Technical field

The present invention relates to display technique field, plane, particularly relate to a kind of polarisation optical filtering module 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 touch-screen on the display screen.Touch-screen as with display screen assembly independently, when being used for the electronic product of some realization man-machine interactions, all need to order according to the size of display screen, assemble again afterwards, with the formation touch display screen, but touch display screen can have touch control operation and Presentation Function simultaneously.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.

Traditional display screen mainly comprises polaroid, optical filter box, Liquid Crystal Module and TFT(Thin Film Transistor, thin film transistor (TFT)), had larger thickness, and when continuing on the display screen applying touch-screen, will further increase the thickness of touch display screen.

Summary of the invention

Based on this, be necessary to provide a kind of polarisation optical filtering module and touch display screen that reduces to reduce electronic product thickness.

A kind of polarisation optical filtering module, comprise: the polaroid assembly, comprise polaroid, and be arranged at the first conductive layer of described polaroid one side, described the first conductive layer comprises a plurality of the first conductive units that arrange along the first direction parallel interval, each described first conductive unit is intersected to form mutually by conductive thread, and described conductive thread intersects to form grid node mutually; Optical filter box, comprise transparent substrates, and be positioned at filter layer and second conductive layer of described transparent substrates the same side, described filter layer comprises light shielding part and optical filtering section, 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 section comprises a plurality of filter units, and each described filter unit is contained in the corresponding described grid cell; Described the second conductive layer comprises a plurality of the second conductive units that arrange along the second direction parallel interval, and each described second conductive unit is intersected to form mutually by conductive thread; Described first direction and second direction are not parallel to each other, and described the first conductive unit and the second conductive unit insulate at thickness direction; The conductive thread live width of described the first conductive layer is 0.2 micron～5 microns, and the distance of adjacent two grid nodes is 50 microns～500 microns; The conductive thread of described the second conductive layer falls within on the described gridline in the projection of described filter layer.

Therein among embodiment, described polaroid comprises the polaroid body and is arranged at the impression glue-line of described polaroid body one side, and described impression glue-line offers groove away from a side of described polaroid body, and described the first conductive layer is contained in described groove.

Among embodiment, the degree of depth of described groove is less than the thickness of described impression glue-line therein, and the conductive thread thickness of described the first conductive layer is not more than the degree of depth of described groove.

Among embodiment, the conductive thread live width of described the second conductive layer is not more than described gridline live width therein.

Among embodiment, the interval width of two adjacent described the first conductive units is 0.5 micron～50 microns therein, and the interval width of two adjacent described the second conductive units is 0.5 micron～50 microns.

Among embodiment, described the second conductive layer is arranged at described light shielding part away from a side of described transparent substrates therein.

Among embodiment, described the second conductive layer is arranged between described light shielding part and the described transparent substrates therein.

Therein among embodiment, the conductive thread of described the first conductive layer intersects to form a plurality of the first conductive grids mutually, the conductive thread of described the second conductive layer intersects to form a plurality of the second conductive grids mutually, and the projection of described the second conductive grid on described filter layer accommodates at least one described filter unit.

Among embodiment, also comprise substratum transparent therein, described transparent substrates is bonding by described substratum transparent and described polaroid assembly away from a side of described filter layer and the second conductive layer.

A kind of touch display screen comprises TFT electrode, Liquid Crystal Module and above-mentioned any one polarisation optical filtering module of stacking gradually.

Above-mentioned polarisation optical filtering module and touch display screen, polarisation optical filtering module can realize touch operation, polarized light function and filtering functions simultaneously, as an indispensable assembly in the display screen, when above-mentioned polarisation optical filtering module is used for display screen, can directly make display screen have touch controllable function, need not to assemble 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 drawing of polarisation optical filtering module among the embodiment;

Fig. 2 is the structural drawing of the first conductive layer and the second conductive layer among the embodiment;

Fig. 3 is the structural drawing of polarisation optical filtering module among another embodiment;

Fig. 4 is the structural drawing of polarisation optical filtering module among the another embodiment;

Fig. 5 is the structural drawing of polarisation optical filtering module among the another embodiment;

Fig. 6 is the structural drawing of polarisation optical filtering module among the another embodiment;

Fig. 7 is the structural drawing of polarisation optical filtering module among the another embodiment;

Fig. 8 is the structural drawing of polarisation optical filtering module among the another embodiment;

Fig. 9 is the structural drawing of polarisation optical filtering module among the another embodiment;

Figure 10 is the structural drawing of polarisation optical filtering module and conductive thread among the embodiment;

Figure 11 is the local structural graph of conductive thread among the embodiment;

Figure 12 is the local structural graph of conductive thread among another embodiment;

Figure 13 is the local structural graph of conductive thread among the another embodiment;

Figure 14 is the local structural graph of conductive thread among the another 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 in the situation of intension of the present invention, so the present invention is not subjected to the restriction of following public implementation.

Need to prove that when element is called as " being fixed in " another element, can directly can there be element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be to be directly connected to another element or may to have 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.

A kind of polarisation optical filtering module as depicted in figs. 1 and 2, comprisespolaroid assembly 100 andoptical filter box 200.

Polaroidassembly 100 comprisespolaroid 110 and is arranged at the firstconductive layer 120 ofpolaroid 110 1 sides, the firstconductive layer 120 comprises a plurality of the firstconductive units 122 that arrange along the first direction parallel interval, each firstconductive unit 122 is intersected to form mutually by electric silk thread, and conductive thread intersects to form grid node mutually.The firstconductive unit 122 can be processed by broken string and obtain, and perhaps directly recharges conductive material by the groove that impresses predetermined pattern and obtains.

Optical filter box 200 comprisestransparent substrates 210, and be positioned atfilter layer 220 and secondconductive layer 230 oftransparent substrates 210 the same sides,filter layer 220 compriseslight shielding part 222 andoptical filtering section 224, andlight shielding part 222 is intersected to form mutually by gridline, and gridline intersects to form a plurality ofgrid cells 223 mutually;Optical filtering section 224 comprises a plurality offilter units 225, and eachfilter unit 225 is contained in thecorresponding grid cell 223; The secondconductive layer 230 comprises a plurality of the secondconductive units 232 that arrange along the second direction parallel interval, and each secondconductive unit 232 is intersected to form mutually by conductive thread, and the secondconductive unit 232 can be processed by broken string equally and obtain.

First direction and second direction are not parallel to each other, and the firstconductive unit 122 and the secondconductive unit 232 form Inductance and Capacitance in the thickness direction insulation.The interval width of two adjacent the firstconductive units 122 can be 0.5 micron to 50 microns, and the interval width of two adjacent the secondconductive units 232 also can be 0.5 micron to 50 microns.The conductive thread live width of the firstconductive layer 120 is 0.2 micron～5 microns, and the distance of adjacent two grid nodes is 50 microns～500 microns, to guarantee the firstconductive layer 120 visually-clear.The conductive thread of the secondconductive layer 230 falls within on the gridline in the projection offilter layer 220, avoids conductive thread to be exposed tooptical filtering section 224 and affects bright dipping and the appearance effect ofoptical filtering section 224.

Transparent substrates 210 can be the optically transparent materials such as glass, polymethylmethacrylate (PMMA) or polyethylene terephthalate (PET) and makes.Transparent substrates 210 is substrate of glass in the present embodiment, can reduce production costs.Light shielding part 222 is the photoresist with black dyes, and it can adopt exposure, develop and make.Optical filtering section 224 is the photoresist with coloured dye, can adopt equally exposure, develop and make.Filter unit 225 is generally red (red, R) light unit, green (green, G) light unit or indigo plant (blue, B) light unit, is used for making incident light be transformed into monochromatic light, realizes filtering functions.

The conductive thread of the firstconductive layer 120 and the secondconductive layer 230 can be in metal simple-substance line, metal alloy wire, carbon nano tube line, Graphene line, organic conductive macromolecule line or tin indium oxide (ITO) line at least a.In the present embodiment, the conductive thread of the firstconductive layer 120 and the secondconductive layer 230 is the metal simple-substance line, and for example silver-colored line can improve electric conductivity.

Therein among embodiment, such as Fig. 1, Fig. 3, Fig. 6, Fig. 7 and shown in Figure 8,polaroid 110 comprisespolaroid body 112, also can comprise impression glue-line 114, impression glue-line 114 is arranged atpolaroid body 112 1 sides, the firstconductive layer 120 can adopt the impression mode to be formed atpolaroid 110, specifically can print off groove with the conductive pattern structural correspondence of the firstconductive layer 120 away from a side pressure ofpolaroid body 112 at impression glue-line 114, filled conductive material and solidify and make the firstconductive layer 120 in the groove again, namely the firstconductive layer 120 is contained in groove.

Impression glue-line 114 is transparence, does not affect whole transmitance.The material of impression glue-line 114 specifically can be solvent-free ultra-violet curing acrylic resin, can also be On Visible Light Cured Resin or heat reactive resin.The thickness of impression glue-line 114 can be 2 μ m～10 μ m, both can avoid because the impression glue-line 114 excessively thin groove that makes is excessively shallow, and affect the integrality of groove, and it is blocked up and causepolaroid assembly 100 blocked up also can to avoid impressing glue-line 114.The present embodiment further groove degree of depth is less than the thickness of impression glue-line 114, and the conductive thread thickness of the firstconductive layer 120 is not more than the degree of depth of groove, can avoid the firstconductive layer 120 exposed and in subsequent technique by scratch.

In another embodiment, such as Fig. 4, Fig. 5 and shown in Figure 9,polaroid 110 also can include onlypolaroid body 112, do not comprise impression glue-line 114, the firstconductive layer 120 directly is arranged atpolaroid body 112 1 sides, the firstconductive layer 120 specifically can be by being coated with or plating conductive layer atpolaroid body 112, and etched mode prepares again.

The secondconductive layer 230 also can be by being coated with or plating conductive layer, and etched mode prepares again.The secondconductive layer 230 can be arranged atlight shielding part 222 away from a side oftransparent substrates 210, such as Fig. 1, Fig. 4, Fig. 6, Fig. 8 and shown in Figure 9.The secondconductive layer 230 also can be arranged betweenlight shielding part 222 and thetransparent substrates 210, such as Fig. 3, Fig. 5 and shown in Figure 7.

The conductive thread live width of the secondconductive layer 230 can be set to be less than or equal to the gridline live width oflight shielding part 222, avoids conductive thread to be exposed to the gridline side direction and affects bright dipping and the appearance effect of optical filtering section 224.Particularly, the conductive thread of the secondconductive layer 230 can equal the gridline live width oflight shielding part 222, such as Fig. 1, Fig. 3, Fig. 4, Fig. 5, Fig. 8 and shown in Figure 9, to reduce the manufacture difficulty of conductive thread.The conductive thread live width of the secondconductive layer 230 also can less than the gridline live width oflight shielding part 222, as shown in Figure 6 and Figure 7, be exposed to the risk of gridline side direction with further reduction conductive thread.In other embodiments, the conductive thread live width of the secondconductive layer 230 also can be greater than the gridline live width oflight shielding part 222, but need to conductive thread and the non-parallel setting of gridline, fall within on the gridline in the projection offilter layer 220 to guarantee conductive thread.

Among embodiment, polarisation optical filtering module also can comprise substratum transparent (not shown in the accompanying drawing) therein, andtransparent substrates 210 is bonding by substratum transparent andpolaroid assembly 100 away from a side offilter layer 220 and the second conductive layer 230.Particularly,transparent substrates 210 can be by substratum transparent andpolaroid 110 side bonds away from the firstconductive layer 120, extremely shown in Figure 7 such as Fig. 3, also can be the side bonds that the firstconductive layer 120 is set by substratum transparent andpolaroid 110, such as Fig. 8 and shown in Figure 9.Be appreciated that in other embodiments polarisation optical filtering module also can not comprise substratum transparent,transparent substrates 210 is connected withpolaroid assembly 100 by other means.

Figure 10 shows that the structural drawing of polarisation optical filtering module and conductive thread, the conductive thread of the firstconductive layer 120 intersects to form a plurality of the first conductive grids, the first conductive grid can be the regular polygon grid, such as square, rhombus, regular hexagon etc., also can be random grid.The conductive thread of the secondconductive layer 230 all falls within on the gridline oflight shielding part 222 in the projection offilter layer 220, and the conductive thread of the secondconductive layer 230 can be straight line, curve, also can be broken line.The concrete shape of the first conductive grid, and the concrete shape of the conductive thread of the secondconductive layer 230 can be selected according to design requirements such as transmittance, Moire fringe problems.

The conductive thread of the secondconductive layer 230 intersects to form a plurality of the second conductive grids mutually, the projection of the second conductive grid onfilter layer 220 accommodates at least onefilter unit 225, can decidefilter unit 225 quantity of holding according to the design requirements such as resistance requirement to conductive layer.

Figure 11 to Figure 14 is the embodiment that differentnumber filter units 225 are held in the projection of the second conductive grid onfilter layer 220, is appreciated that conductive thread a is the conductive thread of the secondconductive layer 230.

In embodiment as shown in figure 11, afilter unit 225 is held in the projection of conductive grid onlight shielding part 222 that conductive thread a forms, be eachgrid cell 223 to a conductive grid should be arranged, so the density of conductive grid is larger, electric conductivity is better.

In embodiment as shown in figure 12, only on first axial (for example transverse axis), a plurality offilter units 225 are held in the projection of conductive grid onlight shielding part 222 that conductive thread a forms.

In embodiment as shown in figure 13, only on second axial (for example longitudinal axis), a plurality offilter units 225 are held in the projection of conductive grid onlight shielding part 222 that conductive thread a forms.

In embodiment as shown in figure 14, on first axial (transverse axis) and second axial (longitudinal axis), a plurality offilter units 225 are all held in the projection of conductive grid onlight shielding part 222 that conductive thread a forms.

The below is elaborated to wherein several embodiment of polarisation optical filtering module making method.

Such as Fig. 1, Fig. 6 and the polarisation optical filtering module with touch control operation function shown in Figure 8, when adopting the impression modes, the firstconductive layer 120 prepares, and the secondconductive layer 230 is arranged atlight shielding part 222 away from a side oftransparent substrates 210, and its manufacturing process is as follows:

(1) surface-coated atpolaroid body 112 impresses glue-line 114, can adopt PMMA(polymethylmethacrylate in the present embodiment, polymethylmethacrylate) UV cured resin, and the impression block of using the conductive pattern with the firstconductive layer 120 to be nested impresses on impression glue-line 114 surfaces and solidifies, and obtains be used to the groove of accommodating the firstconductive layer 120.

(2) filled conductive material and solidifying in the groove, (conductive material can be metal simple-substance, metal alloy, carbon nano-tube, Graphene, organic conductive macromolecule or ITO to obtain the first conductive unit of space, be preferably metal, such as nanometer silver paste), just obtainpolaroid assembly 100 with the firstconductive layer 120.

(3) at first carry out the Plasma(plasma process on a surface of transparent substrates 210) process, remove the dirty oftransparent substrates 210 surfaces, and make surface ion, increase follow-up and cohesive force other material.

(4) be coated with/plate photoresist with black dyes at the whole face intransparent substrates 210 above-mentioned treated surfaces.

(5) adopt exposure-developing technique, the photoresist ofoptical filtering section 224 is removed, formlight shielding part 222.

(6) whole plating conductive material or be coated with one deck conductive ink (conductive material or conductive ink can be metal simple-substance, metal alloy, carbon nano-tube, Graphene, organic conductive macromolecule or ITO, and present embodiment is argent) again obtains conductive layer.

(7) coating one deck photoresist through overexposure-developing technique, only keeps the photoresist of the conductive pattern portions that covers the secondconductive layer 230, and the photoresist in all the other places (comprising needs broken string zone) is removed.

(8) utilize lithographic technique that above-mentioned conductive layer is carried out etching, obtain the second conductive unit of space.

(9) plate/coat R/G/B light unit in the corresponding region gradation again, thereby obtain theoptical filter box 200 with the secondconductive layer 230.

(10) will bond by transparent adhesive and solidify with thepolaroid assembly 100 of the firstconductive layer 120 with theoptical filter box 200 of the secondconductive layer 230, obtain having the polarisation optical filtering module of touch control operation function.

Such as Fig. 3 and the polarisation optical filtering module with touch control operation function shown in Figure 7, when the firstconductive layer 120 adopt that the impression modes prepare, the second conductive layer is covered inlight shielding part 222 andtransparent substrates 210 between, its manufacturing process is as follows:

(1) a surface-coated impression glue-line 114(present embodiment atpolaroid body 112 adopts the PMMAUV cured resin), and the impression block of using the conductive pattern with the firstconductive layer 120 to be nested impresses on impression glue-line 114 surfaces and solidifies, and obtains be used to the groove of accommodating the firstconductive layer 120.

(2) filled conductive material and solidifying in the groove, (conductive material can be metal simple-substance, metal alloy, carbon nano-tube, Graphene, organic conductive macromolecule or ITO to obtain the first conductive unit of space, be preferably metal, such as nanometer silver paste), just obtain polaroid assembly 100 with the firstconductive layer 120.

(3) at first carry out Plasma on a surface oftransparent substrates 210 and process, remove the dirty oftransparent substrates 210 surfaces, and make surface ion, increase follow-up and cohesive force other material.

(4) whole the plating conductive material or be coated with one deck conductive ink and solidify that (conductive material or conductive ink can be metal simple-substance, metal alloy, carbon nano-tube, Graphene, organic conductive macromolecule or ITO ontransparent substrates 210 above-mentioned treated surfaces, present embodiment is the Nano Silver ink), obtain conductive layer.

(5) coating one deck photoresist through overexposure-developing technique, only keeps the photoresist of the conductive pattern portions that covers the secondconductive layer 230, and the photoresist in all the other places (comprising needs broken string zone) is removed.

(6) utilize lithographic technique that above-mentioned conductive layer is carried out etching, obtain the second conductive unit of space.

(7) be coated with/plate photoresist with black dyes at the whole face of above-mentioned conductive layer surface.

(8) adopt exposure-developing technique, the photoresist ofoptical filtering section 224 is removed, formlight shielding part 222.

(9) plate/coat R/G/B light unit in the corresponding region gradation again, thereby obtain theoptical filter box 200 with the secondconductive layer 230.

(10) will bond by transparent adhesive and solidify with thepolaroid assembly 100 of the firstconductive layer 120 with theoptical filter box 200 of the secondconductive layer 230, obtain having the polarisation optical filtering module of touch control operation function.

Such as Fig. 4 and the polarisation optical filtering module with touch control operation function shown in Figure 9, when the firstconductive layer 120, the secondconductive layer 230 all by being coated with/plating a conductive layer, prepare through etching again, and the secondconductive layer 230 is covered inlight shielding part 222 away from the surface oftransparent substrates 210 1 sides, and its manufacturing process is as follows:

(1) whole the plating conductive material or be coated with one deck conductive ink and solidify that (conductive material or conductive ink can be metal simple-substance, metal alloy, carbon nano-tube, Graphene, organic conductive macromolecule or ITO on a surface ofpolaroid body 112, present embodiment is the Nano Silver ink), obtain conductive layer.

(2) coating one deck photoresist through overexposure-developing technique, only keeps the photoresist of the conductive pattern portions that covers the firstconductive layer 120, and the photoresist in all the other places (comprising needs broken string zone) is removed.

(3) utilize lithographic technique that above-mentioned conductive layer is carried out etching, obtain the first conductive unit of space, thereby obtain the polaroid assembly 100 with the firstconductive layer 120.

(4) at first carry out Plasma on a surface oftransparent substrates 210 and process, remove the dirty oftransparent substrates 210 surfaces, and make surface ion, increase follow-up and cohesive force other material.

(5) be coated with/plate photoresist with black dyes at the whole face intransparent substrates 210 above-mentioned treated surfaces.

(6) adopt exposure-developing technique, the photoresist ofoptical filtering section 224 is removed, formlight shielding part 222.

(7) whole plating conductive material or be coated with one deck conductive ink (conductive material or conductive ink can be metal simple-substance, metal alloy, carbon nano-tube, Graphene, organic conductive macromolecule or ITO, and present embodiment is argent) again obtains conductive layer.

(8) coating one deck photoresist through overexposure-developing technique, only keeps the photoresist of the conductive pattern portions that covers the secondconductive layer 230, and the photoresist in all the other places (comprising needs broken string zone) is removed.

(9) utilize lithographic technique that above-mentioned conductive layer is carried out etching, obtain the second conductive unit of space.

(10) plate/coat R/G/B light unit in the corresponding region gradation again, thereby obtain theoptical filter box 200 with the secondconductive layer 230.

(11) will bond by transparent adhesive and solidify with thepolaroid assembly 100 of the firstconductive layer 120 with theoptical filter box 200 of the secondconductive layer 230, obtain having the polarisation optical filtering module of touch control operation function.

The polarisation optical filtering module that has as shown in Figure 5 the touch control operation function, when the firstconductive layer 120, the secondconductive layer 230 all by being coated with/plating a conductive layer, again through etching preparation, and the secondconductive layer 230 is covered betweenlight shielding part 222 and thetransparent substrates 210, and its manufacturing process is as follows:

(1) whole the plating conductive material or be coated with one deck conductive ink and solidify that (conductive material or conductive ink can be metal simple-substance, metal alloy, carbon nano-tube, Graphene, organic conductive macromolecule or ITO on a surface ofpolaroid body 112; Present embodiment is the Nano Silver ink), obtain conductive layer.

(2) coating one deck photoresist through overexposure-developing technique, only keeps the photoresist of the conductive pattern portions that covers the firstconductive layer 120, and the photoresist in all the other places (comprising needs broken string zone) is removed.

(3) utilize lithographic technique that above-mentioned conductive layer is carried out etching, obtain the first conductive unit of space, thereby obtain the polaroid assembly 100 with the firstconductive layer 120.

(4) at first carry out Plasma on a surface oftransparent substrates 210 and process, remove the dirty oftransparent substrates 210 surfaces, and make surface ion, increase follow-up and cohesive force other material.

(5) whole plating conductive material or be coated with one deck conductive ink and solidify that (conductive material or conductive ink can be metal simple-substance, metal alloy, carbon nano-tube, Graphene, organic conductive macromolecule or ITO, present embodiment is the Nano Silver ink), obtain conductive layer.

(6) coating one deck photoresist through overexposure-developing technique, only keeps the photoresist of the conductive pattern portions that covers the secondconductive layer 230, and the photoresist in all the other places (comprising needs broken string zone) is removed.

(7) utilize lithographic technique that above-mentioned conductive layer is carried out etching, obtain the second conductive unit of space.

(8) be coated with/plate photoresist with black dyes at the whole face of above-mentioned conductive layer surface.

(9) adopt exposure-developing technique, the photoresist ofoptical filtering section 224 is removed, formlight shielding part 222.

(10) plate/coat R/G/B light unit in the corresponding region gradation again, thereby obtain theoptical filter box 200 with the secondconductive layer 230.

(11) will bond by transparent adhesive and solidify with thepolaroid assembly 100 of the firstconductive layer 120 with theoptical filter box 200 of the secondconductive layer 230, obtain having the polarisation optical filtering module of touch control operation function.

Above-mentioned polarisation optical filtering module, can realize simultaneously touch operation, polarized light function and filtering functions, as an indispensable assembly in the display screen, when above-mentioned polarisation optical filtering module is used for display screen, can directly make display screen have touch controllable function, need not to assemble 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.The material that the firstconductive layer 120 and the secondconductive layer 230 are selected only expands all suitable conductive materials to transparent material by tradition; When conductive material is selected metal material, the energy consumption that can greatly reduce resistance and reduce touch-screen.

Above-mentioned polarisation optical filtering module with touch controllable function is double-deck conductive structure, and the design that need not to put up a bridge reduces task difficulty greatly.Adopt above-mentioned polarisation optical filtering module, can reduce liquid crystal display (Liquid Crystal Display, LCD) to the signal interference of touch-control effect.

In addition, the present invention also provides a kind of touch display screen, can be the LCDs of straight-down negative or side entering type light source.Touch display screen comprises TFT electrode, Liquid Crystal Module and the above-mentioned polarisation optical filtering module that stacks gradually.Because polarisation optical filtering module has touch operation, polarized light function and filtering functions simultaneously, makes touch display screen have the touch Presentation Function.Not only be conducive to reduce the thickness of electronic product, also greatly saved simultaneously material and assembly cost.Be appreciated that for using backlight as polarized light source, such as OLED(Organic Light-Emitting Diode, Organic Light Emitting Diode) polarized light source, then need not lower polaroid, only need the polarisation module in the above-mentioned polarisation optical filtering module to get final product.

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. a polarisation optical filtering module is characterized in that, comprising:

The polaroid assembly, comprise polaroid, and be arranged at the first conductive layer of described polaroid one side, described the first conductive layer comprises a plurality of the first conductive units that arrange along the first direction parallel interval, each described first conductive unit is intersected to form mutually by conductive thread, and described conductive thread intersects to form grid node mutually;

Optical filter box, comprise transparent substrates, and be positioned at filter layer and second conductive layer of described transparent substrates the same side, described filter layer comprises light shielding part and optical filtering section, 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 section comprises a plurality of filter units, and each described filter unit is contained in the corresponding described grid cell; Described the second conductive layer comprises a plurality of the second conductive units that arrange along the second direction parallel interval, and each described second conductive unit is intersected to form mutually by conductive thread;

Described first direction and second direction are not parallel to each other, and described the first conductive unit and the second conductive unit insulate at thickness direction; The conductive thread live width of described the first conductive layer is 0.2 micron～5 microns, and the distance of adjacent two grid nodes is 50 microns～500 microns; The conductive thread of described the second conductive layer falls within on the described gridline in the projection of described filter layer.

2. polarisation optical filtering module according to claim 1, it is characterized in that, described polaroid comprises the polaroid body and is arranged at the impression glue-line of described polaroid body one side, described impression glue-line offers groove away from a side of described polaroid body, and described the first conductive layer is contained in described groove.

3. polarisation optical filtering module according to claim 2 is characterized in that, the degree of depth of described groove is less than the thickness of described impression glue-line, and the conductive thread thickness of described the first conductive layer is not more than the degree of depth of described groove.

4. polarisation optical filtering module according to claim 1 is characterized in that, the conductive thread live width of described the second conductive layer is not more than described gridline live width.

5. polarisation optical filtering module according to claim 1 is characterized in that, the interval width of two adjacent described the first conductive units is 0.5 micron～50 microns, and the interval width of two adjacent described the second conductive units is 0.5 micron～50 microns.

6. polarisation optical filtering module according to claim 1 is characterized in that, described the second conductive layer is arranged at described light shielding part away from a side of described transparent substrates.

7. polarisation optical filtering module according to claim 1 is characterized in that, described the second conductive layer is arranged between described light shielding part and the described transparent substrates.

8. polarisation optical filtering module according to claim 1, it is characterized in that, the conductive thread of described the first conductive layer intersects to form a plurality of the first conductive grids mutually, the conductive thread of described the second conductive layer intersects to form a plurality of the second conductive grids mutually, and the projection of described the second conductive grid on described filter layer accommodates at least one described filter unit.

9. polarisation optical filtering module according to claim 1 is characterized in that, also comprises substratum transparent, and described transparent substrates is bonding by described substratum transparent and described polaroid assembly away from a side of described filter layer and the second conductive layer.

10. a touch display screen is characterized in that, comprises the TFT electrode that stacks gradually, Liquid Crystal Module and such as the described polarisation optical filtering of any one in the claim 1 to 9 module.

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