CN103353809A - Filter module and touch display screen by using filter module - Google Patents

Abstract

The invention discloses a filter module which comprises a filter layer and a protective layer which are arranged in a laminated manner, wherein the filter layer comprises a filter substrate, a shading part arranged on the filter substrate, and multiple filter units; the multiple filter units form a filter part; intervals are formed among the multiple filter units; the shading part has a grid shape and comprises multiple intersected grid lines; the grid lines are arranged at intervals among the filter units; the grid lines form multiple grid units; each filter unit is contained in a corresponding grid unit; the protective layer comprises a protective film substrate, an impressing adhesive layer and a conductive layer; the conductive layer is embedded on one side, which is far away from the protective film substrate, of the impressing adhesive layer; the conductive layer comprises a first conductive pattern and a second conductive pattern to form an induction structure; the first conductive pattern and the second conductive pattern are formed by a conductive grid consisting of multiple conductive wires. According to the filter module, the touch operation and the filter function can be simultaneously realized, the thickness of an electronic product is reduced, and materials and the assembly cost are saved simultaneously. Meanwhile, the invention also provides a touch display screen.

Description

Optical filter module and use the touch display screen of this optical filter module

Technical field

The present invention relates to the touch screen technology field, particularly relate to a kind of optical filter module and use the touch display screen of this optical filter module.

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, assembling afterwards, to form touch display screen, is Presentation Function but touch display screen can have touch control operation 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 module, Liquid Crystal Module and thin film transistor (TFT) (TFT, Thin Film Transistor), when being combined into display screen by polaroid, optical filter module, Liquid Crystal Module and thin film transistor (TFT), had larger thickness, and when continuing on the display screen applying touch-screen, will further increase its thickness, moreover, many one attaching process, just meaning has increased the bad probability of product, greatly increases the production cost of product.

Summary of the invention

Based on this, be necessary to provide a kind of touch display screen that is conducive to reduce the optical filter module of electronic product thickness and production cost and uses this optical filter module.

A kind of optical filter module comprises filter layer and the protective seam of stacked setting,

Described filter layer comprises light filter substrate, is located at light shielding part and a plurality of filter unit of described light filter substrate, described a plurality of filter unit forms optical filtering section, be provided with the interval between described a plurality of filter unit, described light shielding part is lattice-shaped, comprise some cross one another gridlines, described gridline is located at the interval between the described filter unit, and described gridline forms some grid cells, each filter unit is contained in the corresponding grid cell;

Described protective seam comprises the diaphragm substrate that sets gradually; impression glue-line and conductive layer; described impression glue-line is coated described diaphragm substrate; and described impression glue-line is embedded with described conductive layer away from a side of described diaphragm substrate; described conductive layer comprises the first conductive pattern and the second conductive pattern; described the first conductive pattern and the second conductive pattern are in the plane of described impression glue-line extension direction space; described the first conductive pattern and the second conductive pattern space form induction structure, and described the first conductive pattern and described the second conductive pattern include the some conductive grids that are made of conductive thread.

Therein among embodiment, described impression glue-line offers the first groove and second groove of reservation shape away from a side of described diaphragm substrate, the conductive thread of described the first conductive pattern is contained in described the first groove, is solidify to form by the conductive material that is filled in described the first groove; The conductive thread of described the second conductive pattern is contained in described the second groove, is solidify to form by the conductive material that is filled in described the second groove.

Among embodiment, described conductive thread is curve, straight line or broken line therein.

Among embodiment, the live width scope of the conductive thread of described conductive grid is 200nm～5 μ m therein.

Among embodiment, at least one projection of described conductive thread on described light filter substrate falls within the described grid cell therein.

Among embodiment, described conductive thread is over against described gridline therein, and described conductive thread all drops on the described gridline in the projection on the described light shielding part.

Among embodiment, each described conductive grid projection on described light filter substrate accommodates a filter unit therein.

Among embodiment, each described conductive grid projection on described light filter substrate accommodates at least two filter units therein.

Among embodiment, also comprise conducting bridge therein, the two ends of described conducting bridge are electrically connected on respectively two the second conductive patterns of described first conductive pattern both sides, and insulate between described conducting bridge and described the first conductive pattern.

Among embodiment, described conducting bridge is transparent conductive material therein, and described conducting bridge is located at described impression glue-line surface, is provided with transparent insulation course between described conducting bridge and described the first conductive pattern.

Therein among embodiment; described impression glue-line comprises the first impression glue and the second impression glue-line that is stacked and placed on successively described diaphragm substrate; described conductive layer is embedded in described the first impression glue-line; described conducting bridge is embedded in described the second impression glue-line; described conducting bridge comprises the bridge part that is connected to form by conductive thread; the two ends of described bridge part are electrically connected on respectively the second conductive pattern of described the first conductive pattern both sides, and described bridge part is by insulating with corresponding the first conductive pattern with the second impression glue-line between the first conductive pattern at it.

Therein among embodiment, also comprise the section of running through that is positioned at the bridge part two ends, the described section of running through is embedded in the degree of depth of described impression glue-line embeds described impression glue-line greater than described bridge part the degree of depth to be electrically connected with described the second conductive pattern, and described bridge part is electrically connected two the second conductive patterns of described the first conductive pattern both sides by the described section of running through.

Among embodiment, each described section of running through is connected at least two conductive threads of corresponding the second conductive pattern therein.

Among embodiment, a side of each described the first conductive pattern is arranged with the second conductive pattern of at least two spaces, the described second conductive pattern mutually insulated of each the first conductive pattern both sides therein.

Among embodiment, described the first conductive pattern is provided with the first contact conductor of the described diaphragm substrate edge of guiding therein, and described the second conductive pattern is provided with the second contact conductor of the described diaphragm substrate edge of guiding.

Among embodiment, described the first contact conductor and the second contact conductor are conductive grid or the single bundle solid conductor that is embedded in the described impression glue-line therein.

Among embodiment, described the first contact conductor and the second contact conductor are the single bundle solid conductor that is formed at described impression glue-line surface therein.

A kind of touch display screen comprises the TFT electrode, Liquid Crystal Module, public electrode, above-described optical filter module, the polaroid that stack gradually.

Above-mentioned optical filter module and using in the touch display screen of this optical filter module, the optical filter module can realize 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 module of an embodiment;

Fig. 3 is the structural representation of the protective seam of an embodiment;

Fig. 4 is the structural representation at another visual angle of protective seam shown in Figure 3;

Fig. 5 is the structural representation of protective seam in another embodiment;

Fig. 6 is the structural representation of protective seam in the another embodiment;

Fig. 7 is that conductive thread projects to structural representation on the light filter substrate in the embodiment;

Fig. 8 projects to structural representation on the light filter substrate for conductive thread in another embodiment;

Fig. 9 is that conductive thread projects to structural representation on the light filter substrate in the another embodiment;

Figure 10 projects to structural representation on the light filter substrate for conductive thread in the embodiment again.

Embodiment

For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with accompanying drawing the specific embodiment of the present invention is described in detail.A lot of details have been set forth in the following description so that fully understand the present invention.But the present invention can implement much to be different from alternate manner described here, and those skilled in the art can do similar improvement 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.

The present invention proposes to be conducive to reduce the optical filter module of electronic product thickness and production cost and the touch display screen of this optical filter of use.This optical filter module can realize touch operation and Presentation Function, thereby makes touch display screen have the touch Presentation Function.

Seeing also Fig. 1, is thetouch display screen 100 of an embodiment, comprises thelower polaroid 10,TFT electrode 20, Liquid CrystalModule 30,public electrode 40,optical filter module 200 and theupper polaroid 50 that stack gradually.

TFT electrode 20 comprises glass-base 24 and the show electrode 22 that is arranged on the glass-base 24.Liquid Crystal Module comprisesliquid crystal 32 and is held on thealignment film 34 ofliquid crystal 32 both sides.

Be appreciated that when using backlight as polarized light source, such as the OLED polarized light source, need not lowerpolaroid 10, only needupper polaroid 50 to get final product.Structure and the function of thelower polaroid 10 of present embodiment,TFT electrode 20, Liquid CrystalModule 30,public electrode 40,upper polaroid 50 can be identical with existing product, do not repeat them here.

Buttouch display screen 100 has tangible operation and filtering functions simultaneously, makes display screen have the touch Presentation Function.Display screen can be straight-down negative or the former LCDs of side following formula light.

Following emphasis is describedoptical filter module 200.

See also Fig. 2, theoptical filter module 200 in the embodiment comprises filter layer 210 and protective seam 220.Theprotective seam 220 stacked filter layers 210 that are arranged at,protective seam 220 are nearpublic electrode 40 1 sides, and filter layer 210 is nearupper polaroid 50 1 sides.Wherein, filter layer 210 comprises light filter substrate 212, is located at a plurality of filter units and thelight shielding part 2124 of light filter substrate 212, and a plurality of filter units form optical filtering section 2122.Be provided with the interval between a plurality of filter units, the interval is filled with shade and forms light shielding part 2124.Light shielding part 2124 is lattice-shaped, comprises some cross one another gridlines, and described gridline is located at the interval between the described filter unit, and described gridline forms some grid cells, and each filter unit is contained in the corresponding grid cell.Certainly, in other embodiment, can also makeprotective seam 220 nearupper polaroid 50, filter layer 210 is nearpublic electrode 40 1 sides.

Protective seam 220 comprisesdiaphragm substrate 222, impression glue-line 224 and theconductive layer 226 that sets gradually.Impression glue-line 224 is coateddiaphragm substrate 222, and impression glue-line 224 is embedded withconductive layer 226 away from a side of diaphragm substrate 222.Conductive layer 226 comprises the firstconductive pattern 2262 and the secondconductive pattern 2264, the firstconductive pattern 2262 and the secondconductive pattern 2264 be the space on the plane extension direction of impression glue-line 224, the firstconductive pattern 2262 and the secondconductive pattern 2264 spaces form induction structure, and the firstconductive pattern 2262 and the secondconductive pattern 2264 include the some conductive grids that are made of conductive thread a.

Above-mentionedoptical filter module 200; by with theprotective seam 220 of light filter substrate 212 belows as carrier; afterdiaphragm substrate 222 forms impression glue-line 224; be embeddedconductive layer 226 at impression glue-line 224 again; form the capacitive sensing structure, makeoptical filter module 200 can realize simultaneously touch control operation and filtering functions.When above-mentionedoptical filter module 200 is applied to display screen, can directly be that display screen has 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.

In present embodiment,light shielding part 2124 is that black out ink, shading resin or shading coating form, and has opaqueness.Grid cell is square in the lattice-shaped, so that the arrangement of the photoresistance of optical filtering section 2122 is compacter.The in the same size of grid is conducive to the RGB colour developing evenly.Light shielding part 2124 can effectively be avoided each other colour contamination of chromatic photoresist.Grid cell in the lattice-shaped thatlight shielding part 2124 forms also can be circular or irregular polygon.

Please consult again Fig. 2 and Fig. 3; in present embodiment; impression glue-line 224 offers the first groove and second groove of reservation shape away from a side ofdiaphragm substrate 222; the conductive thread a of the firstconductive pattern 2262 is contained in the first groove, is solidify to form by the conductive material that is filled in the first groove.The conductive thread a of the second conductive pattern is contained in the second groove, and the conductive material by being filled in the second groove solidify to form.The first groove and the second groove all form by the mode of graphical impression, again at the first groove and the second groove filled conductive material, form patterned the firstconductive pattern 2262 and the secondconductive pattern 2264, the firstconductive patterns 2262 and the secondconductive pattern 2264 spaces with insulation.The thickness of the firstconductive pattern 2262 is not more than the degree of depth of the first groove, and the thickness of the secondconductive pattern 2264 is not more than the degree of depth of the first groove, to guarantee the light transmission ofconductive layer 226.

Above-mentionedoptical filter module 200, becauseconductive layer 226 is the first groove and second grooves that have in advance reservation shape by impression formboard at impression glue-line 224 impressions, the filled conductive material forms in the first groove and the second groove again, so the firstconductive pattern 2262 and the secondconductive pattern 2264 can imprinting mouldings, need not all graphical etchings of every a slice conductive pattern, greatly simplify manufacturing process, removed simultaneously etching step from, can save a large amount of conductive materials.Conductive material can be metal material, carbon nano-tube, Graphene, and organic conductive macromolecule or ITO etc. are preferably metal material, such as nanometer silver paste.When conductive material was ITO, cost savings were comparatively obvious.In addition, by the density of impression formboard control conductive grid and the live width of conductive thread, can make conductive grid reach visually-clear, at this moment, but conductive thread a alignment grid ruling islight shielding part 2124, but also misalignment gridline.When selecting metal as conductive material, can greatly reduce resistance to reduce the energy consumption of touch display screen.

In present embodiment, conductive grid can be rule or conductive grid at random.Described conductive thread a is curve, straight line or broken line.And at least one projection of described conductive thread on described light filter substrate falls within the described grid cell, and this moment, the live width scope of conductive thread a was 200nm～5 μ m, satisfied visual transparent.When conductive grid is at random conductive grid, can avoid producing serious Moire fringe, improve user's experience sense.Conductive thread a can have any shape, and has reduced production requirement, when conductive thread a is curve or broken line, also can avoid serious Moire fringe simultaneously, further improves user's experience sense.

In other embodiment, described conductive thread is over against described gridline, and described conductive thread all drops on the described gridline in the projection on the described light shielding part.Avoid conductive thread that the light transmission of optical filtering section is impacted.This moment is less to the linewidth requirements of conductive thread, as long as be not more than the live width of gridline.

See also Fig. 7 and Fig. 9, in present embodiment, each described conductive grid projection on described light filter substrate accommodates a filter unit.Optical filtering section 2124 is lattice-shaped, is optical filtering section 2122 in the grid cell, and gridline is light shielding part 2124.Also namely when conductive grid projects on the light filter substrate 212, the corresponding conductive grid of each grid cell, the gridline of the corresponding grid cell of the conductive thread of a conductive grid, the conductive thread a of conductive grid can be straight line.Because each grid is to there being a conductive grid, so the density of conductive grid is larger, electric conductivity is better.

Certainly, see also Fig. 8 and Figure 10, in other embodiment, each described conductive grid projection on described light filter substrate accommodates at least two filter units.The conductive thread a of conductive grid can be curve or broken line.At this moment, the density of conductive grid reduces, and is conducive to increase the penetrability of optical filter module.

Certainly, in other embodiment, the quantity of described grid cell is the integral multiple of described conductive grid quantity.The corresponding grid cell of a conductive grid can appear this moment simultaneously, the situation of at least two grid cells of a conductive grid correspondence, and the conductive thread a of conductive grid can be curve or broken line.At this moment, the density of conductive grid reduces, and is conducive to increase the penetrability of optical filter module.

See also Fig. 2, Fig. 4 and Fig. 7～Figure 10, in present embodiment, described optical filtering section 2122 comprises chromatic photoresist, is formed with a chromatic photoresist in each grid.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.

See also Fig. 3 and Fig. 4, can also comprise conductingbridge 2260, the two ends of described conductingbridge 2260 are electrically connected on respectively two the secondconductive patterns 2264 of described firstconductive pattern 2262 both sides, and insulation between described conductingbridge 2260 and described the firstconductive pattern 2262.

In present embodiment, described conductingbridge 2260 is transparent conductive material, and the conductingbridge 2260 of formation is on the surface ofconductive layer 226, and conductingbridge 2260 is formed by conductive thread a cross connection, is conducive to increase the penetrability of conductive layer 226.The two ends of conductingbridge 2260 are connected to the secondconductive pattern 2264 of the firstconductive pattern 2262 both sides, and be provided with transparent insulating layer between the firstconductive pattern 2262 and the secondconductive pattern 2264, so that the firstconductive pattern 2262 and the secondconductive pattern 2264 mutually insulateds, the touch display screen of formation individual layer multipoint configuration.

In other embodiment, conductingbridge 2260 can also be embedded in the impression glue-line 224.Impression glue-line 224 comprises that the first impression glue-line 2242 and the second impression glue-line 2244, the second impression glue-lines 2244 can be formed at by the mode of graphical printing the first impression glue-line 2242 surfaces.Describedconductive layer 226 is embedded in described the first impression glue-line 2242, and described conductingbridge 2260 is embedded in described the second impression glue-line 2244.Described conductingbridge 2260 comprises the bridge part II that is connected to form by conductive thread, the two ends of described bridge part II are connected to two the secondconductive patterns 2264 of described the firstconductive pattern 2260 both sides, and described bridge part II is by insulating with corresponding the firstconductive pattern 2262 with the second impression glue-line 2244 between the firstconductive pattern 2260 at it.

See also Fig. 5; in other embodiment; described conductingbridge 2260 also comprises the section of the running through I that is positioned at bridge part II two ends; described bridge part II insulate with described the firstconductive pattern 2262 spaces by the part of described the second impression glue-line 2244 between described bridge part II and described the firstconductive pattern 2262 at the thickness direction of describeddiaphragm substrate 222; the described section's I that runs through runs through described the second impression glue-line 2244, connects two the secondconductive patterns 2264 of described the firstconductive pattern 2262 both sides.The bridge part II is made of some conductive grids that conductive thread consists of.Be embedded at the protection that the conductingbridge 2260 of the second impression in the glue-line 224 can be subject to the second impression glue-line 224, avoid in follow-up operation, damaging.The section I of running through is filled with conductive material, so that the section I of running through can be conducted electricity, the section I of running through comprises the some conductive grids that are made of conductive thread.

In present embodiment, each is described to run through at least two conductive threads that section's I is connected in corresponding the second conductive pattern 2264.If wherein conductive thread fracture, but the still conducting of another conductive thread to guarantee the electrically validity of overlap joint, avoids two the secondconductive patterns 2264 of the firstconductive pattern 2262 both sides not to be electrically connected.

See also Fig. 6, in other embodiment, can also form by other means induction structure.Conductive layer 226 comprises the firstconductive pattern 2262 and the secondconductive pattern 2264, one side of each described the firstconductive pattern 2262 is arranged with the secondconductive pattern 2264 of at least two spaces, described the secondconductive pattern 2264 mutually insulateds of each the firstconductive pattern 2262 both sides.Save the bridging step, simplified the making flow process.

In present embodiment, described the first conductive pattern 2262 is provided with first contact conductor 2266 at the described diaphragm substrate of guiding 222 edges, and described the second conductive pattern 2264 is provided with second contact conductor 2268 at the described diaphragm substrate of guiding 222 edges.The first contact conductor 2266 and the second contact conductor 2268 all can be formed at conductive layer 226 by the mode of printing.Described the first contact conductor 2266 and the second contact conductor 2268 are conductive grid or the single bundle solid conductor that is embedded in the described impression glue-line 224.The first contact conductor 2266 and the second contact conductor 2268 all can be single bundle solid conductor or the mesh lines that is made of conductive thread.When the first contact conductor 2266 and the second contact conductor 2268 are single bundle solid conductor, must be that light shielding part 2124 is aimed at gridline, namely the first contact conductor 2266 and the second contact conductor 2268 must be in the gridline live widths in the projection on the light filter substrate 212.When the first contact conductor 2266 and the second contact conductor 2268 are conductive grid, conductive thread a can the alignment grid ruling be light shielding part 2124, also can the misalignment gridline, during the misalignment gridline, the live width scope of conductive thread a can be 500nm～5 μ m, to guarantee that the first contact conductor 2266 and the second contact conductor 2268 are as visually-clear.

Contact conductor in the conductive pattern is network, carry out blade coating when being convenient to the filled conductive material, easier being retained wherein of conductive material do not blown off, simultaneously, for nanometer silver paste, when sintering, can not produce agglomeration effect and produce the ping-pong ball that scatters andcause 2268 fractures of the second contact conductor.

In other embodiment, described thefirst contact conductor 2266 and thesecond contact conductor 2268 are the single bundle solid conductor that is formed at described impression glue-line 224 surfaces.When thefirst contact conductor 2266 and thesecond contact conductor 2268 are single bundle solid conductor, must be thatlight shielding part 2124 is aimed at gridline, namely thefirst contact conductor 2266 and thesecond contact conductor 2268 must be in the gridline live widths in the projection on the light filter substrate 212.

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 (18)

1. optical filter module comprises it is characterized in that filter layer and the protective seam of stacked setting,

Described filter layer comprises light filter substrate, is located at light shielding part and a plurality of filter unit of described light filter substrate, described a plurality of filter unit forms optical filtering section, be provided with the interval between described a plurality of filter unit, described light shielding part is lattice-shaped, comprise some cross one another gridlines, described gridline is located at the interval between the described filter unit, and described gridline forms some grid cells, and each filter unit is contained in the corresponding grid cell;

Described protective seam comprises the diaphragm substrate that sets gradually; impression glue-line and conductive layer; described impression glue-line is coated described diaphragm substrate; and described impression glue-line is embedded with described conductive layer away from a side of described diaphragm substrate; described conductive layer comprises the first conductive pattern and the second conductive pattern; described the first conductive pattern and the second conductive pattern are in the plane of described impression glue-line extension direction space; described the first conductive pattern and the second conductive pattern space form induction structure, and described the first conductive pattern and described the second conductive pattern include the some conductive grids that are made of conductive thread.

2. optical filter module according to claim 1, it is characterized in that, described impression glue-line offers the first groove and second groove of reservation shape away from a side of described diaphragm substrate, the conductive thread of described the first conductive pattern is contained in described the first groove, is solidify to form by the conductive material that is filled in described the first groove; The conductive thread of described the second conductive pattern is contained in described the second groove, is solidify to form by the conductive material that is filled in described the second groove.

3. optical filter module according to claim 2 is characterized in that, described conductive thread is curve, straight line or broken line.

4. optical filter module according to claim 3 is characterized in that, the live width scope of the conductive thread of described conductive grid is 200nm～5 μ m.

5. optical filter module according to claim 4 is characterized in that, at least one projection of described conductive thread on described light filter substrate falls within the described grid cell.

6. optical filter module according to claim 3 is characterized in that, described conductive thread is over against described gridline, and described conductive thread all drops on the described gridline in the projection on the described light shielding part.

7. optical filter module according to claim 6 is characterized in that, each described conductive grid projection on described light filter substrate accommodates a filter unit.

8. optical filter module according to claim 6 is characterized in that, each described conductive grid projection on described light filter substrate accommodates at least two filter units.

9. the described optical filter module of any one in 8 according to claim 1, it is characterized in that, also comprise conducting bridge, the two ends of described conducting bridge are electrically connected on respectively two the second conductive patterns of described first conductive pattern both sides, and insulate between described conducting bridge and described the first conductive pattern.

10. optical filter module according to claim 9 is characterized in that, described conducting bridge is transparent conductive material, and described conducting bridge is located at described impression glue-line surface, is provided with transparent insulation course between described conducting bridge and described the first conductive pattern.

11. optical filter module according to claim 9; it is characterized in that; described impression glue-line comprises the first impression glue and the second impression glue-line that is stacked and placed on successively described diaphragm substrate; described conductive layer is embedded in described the first impression glue-line; described conducting bridge is embedded in described the second impression glue-line; described conducting bridge comprises the bridge part that is connected to form by conductive thread; the two ends of described bridge part are electrically connected on respectively the second conductive pattern of described the first conductive pattern both sides, and described bridge part is by insulating with corresponding the first conductive pattern with the second impression glue-line between the first conductive pattern at it.

12. optical filter module according to claim 11, it is characterized in that, described conducting bridge also comprises the section of running through that is positioned at described bridge part two ends, the described section of running through is embedded in the degree of depth of described impression glue-line embeds described impression glue-line greater than described bridge part the degree of depth to be electrically connected with described the second conductive pattern, and described bridge part is electrically connected two the second conductive patterns of described the first conductive pattern both sides by the described section of running through.

13. optical filter module according to claim 12 is characterized in that, each described section of running through is connected at least two conductive threads of corresponding the second conductive pattern.

14. the described optical filter module of any one in 8 according to claim 1, it is characterized in that, one side of each described the first conductive pattern is arranged with the second conductive pattern of at least two spaces, the described second conductive pattern mutually insulated of each the first conductive pattern both sides.

15. optical filter module according to claim 1 is characterized in that, described the first conductive pattern is provided with the first contact conductor of the described diaphragm substrate edge of guiding, and described the second conductive pattern is provided with the second contact conductor of the described diaphragm substrate edge of guiding.

16. optical filter module according to claim 15 is characterized in that, described the first contact conductor and the second contact conductor are conductive grid or the single bundle solid conductor that is embedded in the described impression glue-line.

17. optical filter module according to claim 15 is characterized in that, described the first contact conductor and the second contact conductor are the single bundle solid conductor that is formed at described impression glue-line surface.

18. a touch display screen is characterized in that, comprises the TFT electrode that stacks gradually, Liquid Crystal Module, public electrode, such as the described optical filter module of any one among the claim 1-17, polaroid.

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