CN103425324B - Polarisation filtration module and touch display screen - Google Patents

Polarisation filtration module and touch display screen Download PDF

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Publication number
CN103425324B
CN103425324B CN201310108549.8A CN201310108549A CN103425324B CN 103425324 B CN103425324 B CN 103425324B CN 201310108549 A CN201310108549 A CN 201310108549A CN 103425324 B CN103425324 B CN 103425324B
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China
Prior art keywords
conductive
conductive pattern
polarisation
conducting
filtration module
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Expired - Fee Related
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CN201310108549.8A
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Chinese (zh)
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CN103425324A (en
Inventor
唐根初
董绳财
刘伟
唐彬
何世磊
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Nanchang OFilm Tech Co Ltd
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Nanchang OFilm Tech Co Ltd
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Abstract

A kind of polarisation filtration module, including:Optical filter module, optical filter module include carrying substrates, shading matrix and the chromatic photoresist being scattered in shading matrix, and shading matrix includes the ruling formed by light screening material;And polaroid module, polaroid module include polarizer substrate material;The conductive layer being arranged in polarizer substrate material, conductive layer includes the first conductive pattern and the second conductive pattern, first and second conductive pattern spaced formation induction structure on the extension direction of polarizer substrate material, first and second conductive pattern includes the conductive grid formed by conductive thread interconnection, and conductive thread projects to fall on the ruling of shading matrix on shading matrix;And protection glue-line, coating is on the electrically conductive.Above-mentioned polarisation filtration module can realize touch control operation and outgoing polarization light function simultaneously, during in display screen, have touch controllable function, without assembling touch-screen again, not only reduce the thickness of electronic product, while also save cost.A kind of touch display screen is also provided.

Description

Polarisation filtration module and touch display screen
Technical field
The present invention relates to touch-screen, more particularly to a kind of polarisation filtration module and touch display screen.
Background technology
Touch-screen is a kind of inductive arrangement for receiving Touching controlling lamp input signal.It is brand-new that touch-screen imparts information exchange Looks, be extremely attractive brand-new information exchange equipment.The development of touch screen technology causes domestic external information medium circle Common concern, it has also become photovoltaic industry be a dark horse Chaoyang new high-tech industry.
At present, there is the electronic product for touching display function to include display screen and the touch-screen on display screen, so And touch-screen, when realizing the electronic product of man-machine interaction for some, is required to basis as the component with display screen independence The size of aobvious screen is ordered, and is assembled again afterwards, the assembling of existing touch-screen and display screen mainly has two ways, i.e., Frame pastes and full fitting, and frame patch is to be bonded touch-screen with the edge of display screen, and full fitting is by the lower surface of touch-screen and display The whole face fitting in upper surface of screen.
Composite module of the display screen as polaroid, optical filter, Liquid Crystal Module and TFT etc., its thickness is larger, meanwhile, Touch-screen and display screen are independent component, when electronic product assembles, not only need the packaging technology of complexity, can also increase again Add the thickness and weight of electronic product, furthermore, more one of packaging technology, it is meant that add the bad probability of product, significantly Increase the production cost of product.
The content of the invention
Based on this, it is necessary to provide a kind of polarisation filtration module for advantageously reducing electronic product thickness and production cost and Use the touch display screen of the polarisation filtration module.
A kind of polarisation filtration module, including:
Optical filter module, the optical filter module include carrying substrates, shading matrix and the coloured silk being scattered in shading matrix Coloured light hinders, and the shading matrix includes the ruling formed by light screening material;And
Polaroid module, the polaroid module include:
Polarizer substrate material;
The conductive layer being arranged in the polarizer substrate material, the conductive layer include the first conductive pattern and the second conductive pattern Case, first conductive pattern and the second conductive pattern are spaced on the extension direction of the polarizer substrate material to form sensing Structure, first conductive pattern and the second conductive pattern include conductive grid, and the conductive grid is intersected by conductive thread and connected Connect to be formed, the conductive thread projects to fall on the ruling of the shading matrix on the shading matrix;And
Glue-line is protected, is coated on the conductive layer.
In one of the embodiments, the material of the conductive thread is metal, CNT, graphene, organic conductive Macromolecule or ITO.
In one of the embodiments, the line width of conductive thread is not more than the ruling line width.
In one of the embodiments, first conductive pattern and the second conductive pattern are by being attached to the polarisation The etching of plate substrate surface metal plating layer obtains, and first conductive pattern and the second conductive pattern are embedded at the protection glue-line and leaned on The side of the nearly upper polaroid.
In one of the embodiments, the coat of metal includes at least one of silver, copper, zinc, gold, nickel metal.
In one of the embodiments, it is spaced to be arranged with least two for the side of each first conductive pattern Second conductive pattern, the second conductive pattern mutually insulated of every one first conductive pattern both sides.
In one of the embodiments, first conductive pattern and the second conductive pattern are designed with lead, the lead For network or solid linear.
In one of the embodiments, the conductive layer also includes conducting bridge, and the conducting bridge is located at described first and led In electrical pattern, and electrically connected with two the second conductive patterns positioned at the first conductive pattern opposite sides, the conducting bridge and institute State between the first conductive pattern formed with insulating barrier.
In one of the embodiments, the conducting bridge is formed by transparent conductive material, and the both ends of the conducting bridge are direct With positioned at the first conductive pattern both sides two the second conductive patterns overlap joint, and each end of the electric block bridge with it is corresponding The second conductive pattern at least two conductive threads overlap joint.
In one of the embodiments, the conducting bridge is embedded in the protection glue-line, the conducting bridge and described the One conductive pattern it is described protection glue-line thickness direction on it is spaced, it is described protection glue-line be located at the conducting bridge with it is described Part between first conductive pattern forms the insulating barrier.
In one of the embodiments, the conducting bridge is to form conductive grid by conductive thread interconnection, described to lead Electric bridge is provided at both ends with the first conducting block and the second conducting block, first conducting block and the second conducting block be electrically connected in Two the second conductive patterns of the first conductive pattern both sides.
In one of the embodiments, first conducting block is electrically connected at least the two of the second corresponding conductive pattern Bar conductive thread, second conducting block are electrically connected at least two conductive threads of the second corresponding conductive pattern.
In one of the embodiments, the protection glue-line is backwards to the optical filter module.
In one of the embodiments, the protection glue-line towards the optical filter module and is held on the polarisation substrate Between the filtration module.
A kind of touch display screen, including TFT electrodes, Liquid Crystal Module, the public electrode and such as any one institute stacked gradually The polarisation filtration module stated.
In one of the embodiments, the protection glue-line of the polaroid module, the first conductive pattern and the first conductive pattern Case is located between the polarizer substrate material and the optical filter module.
Above-mentioned polarisation filtration module and using in the touch display screen of the polarisation filtration module, polarisation filtration module can be same Shi Shixian touch control operations and outgoing polarization light function, as an indispensable component in display screen, during in display screen, It directly can make display screen that there is touch controllable function, without assembling touch-screen on a display screen again, not only contribute to reduce electronic product Thickness, while also greatly save material and assembly cost.
Brief description of the drawings
Fig. 1 is the structural representation of the touch display screen of an embodiment;
Fig. 2 is the structural representation of the polarisation filtration module of an embodiment;
Fig. 3 is the structural representation of an embodiment polaroid module;
Fig. 4 is the structural representation of the conductive layer of an embodiment;
Fig. 4 a are the structural representation of the conductive thread of an embodiment;
Fig. 4 b are the structural representation of the conductive thread of another embodiment;
Fig. 4 c are the structural representation of the conductive thread of another embodiment;
Fig. 4 d are the structural representation of the conductive thread of another embodiment;
Fig. 5 is the preparation process schematic diagram of the conductive layer of an embodiment;
Fig. 6 is the structural representation of the polaroid module of another embodiment;
Fig. 7 is the structural representation of the conductive layer of another embodiment.
Embodiment
In order to facilitate the understanding of the purposes, features and advantages of the present invention, below in conjunction with the accompanying drawings to the present invention Embodiment be described in detail.Many details are elaborated in the following description in order to fully understand this hair It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not Similar improvement is done in the case of running counter to intension of the present invention, therefore the present invention is not limited to the specific embodiments disclosed below.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element Or there may also be element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to To another element or it may be simultaneously present centering elements.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " include one or more phases The arbitrary and all combination of the Listed Items of pass.
The present invention propose advantageously reduce polaroid module of electronic product thickness and production cost and preparation method thereof and Use the touch display screen of the polaroid.The polaroid module can realize touch operation and display function, so that touching display Screen, which has, touches display function.
Referring to Fig. 1, the touch display screen 100 of an embodiment, including stack gradually down polaroid 10, TFT electrodes 20th, Liquid Crystal Module 30, public electrode 40, diaphragm 50 and polarisation filtration module 200.
TFT electrodes 20 include glass-base 24 and the show electrode 22 being arranged on glass-base 24.
It is appreciated that when use backlight as polarized light source, such as OLED polarized light sources, without down polaroid 10, Need polarisation filtration module 200.Diaphragm 50 can also omit.
The down polaroid 10, TFT electrodes 20, Liquid Crystal Module 30, public electrode 40, the structure of diaphragm 50 and work(of the present embodiment Energy can be identical with existing product, will not be repeated here.
Touch display screen 100 have simultaneously it is tangible operation and can polarised light function, make display screen have touch show work( Energy.Display screen can be straight-down negative or the LCDs of side following formula light original.
Following emphasis describes polarisation filtration module 200.
Referring to Fig. 2, the polarisation filtration module 200 of an embodiment, including optical filter module 201 and polaroid module 202。
Optical filter module 201 includes carrying substrates 21 and optical filter 23, and optical filter 23 includes shading matrix 233 and is scattered in Chromatic photoresist 231 in shading matrix, shading matrix 233 include the ruling formed by light screening material.
The polarizer substrate material 210 that polaroid module 202 is cascading, protect glue-line 230 and conductive layer 220.
Polarizer substrate material 210 is used to convert incident light into polarised light.In the present embodiment, polarizer substrate material 210 is organic Flexible parent metal, volume to volume technique is can apply to, suitable for producing in enormous quantities.
Fig. 2 and 3 are referred to, conductive layer 220 is arranged in polarizer substrate material 210.Conductive layer 220 includes the first conductive pattern 222 and second conductive pattern 224,224 spaced formation induction structure of the first conductive pattern 222 and the second conductive pattern.
Referring to Fig. 4, the first conductive pattern 222 and the second conductive pattern 224 of conductive layer 220 can be with individual layer multipoint configurations Conductive pattern, i.e., the side of every one first conductive pattern 222 is arranged with least two the second spaced conductive patterns 224, insulation layer 37, every 222 liang of one first conductive pattern are provided between the first conductive pattern 222 and the second conductive pattern 224 The mutually insulated of the second conductive pattern 224 of side.Guiding is equipped with the first conductive pattern 222 and the second conductive pattern 224 to protect The lead 35 at glue-line edge is protected, lead 35 can be solid wire, or the grid lines of grid arrangement composition.
The hardness of glue-line 230 can be protected not by coating method coated on conductive layer 220 by protecting glue-line 230 to set Greatly, showing methods are advantageous to.
First conductive pattern 222 and the second conductive pattern 224 can be respectively conductive grid, and conductive grid is by conductive filament The interconnection of line 34 is formed, and the basic grid shape of conductive thread 34 can be that regular grid can also be random grid.It is conductive The line width of silk thread 34.Can be 500nm~5 μm, conductive thread 34 can be obtained by carrying out imprint on conductive layer 220 , conductive material can be metal, and CNT, graphene, organic conductive macromolecule and ITO etc., preferably metal (is such as received Rice silver paste).
The conductive thread 34 of conductive grid can be with the ruling in the shading matrix of the optical filter 64 in optical filter module 60 Misalignment, it can also be aligned.When the ruling misalignment in conductive thread 34 and shading matrix, to ensure optical filter module 60 Translucency, and then ensure the colour rendering of display screen, the line width of the conductive thread 34 of conductive grid in the μ m of 500nm~5, with Make conductive grid visually transparent.
In one embodiment, the face of conductive thread 34 in the first conductive pattern 222 and the second conductive pattern 224 filters Shading resin or ink in piece module, i.e. conductive thread 34 shading resin or ink projection in the plane it is just whole Fall on shading resin or ink, conductive thread 34 is blocked by shading resin or ink, and the light for not interfering with display screen so is saturating Cross rate, and the thickness requirement of conductive thread 34 is also without requiring in visually-clear, as long as the thickness of conductive thread 34 is less than The thickness of shading resin or ink wire.
As shown in fig. 4 a, the rectangle that the conductive grid of the first conductive pattern 222 and the second conductive pattern 224 can be, and A filter unit grid on one grid cell face light shield layer of each conductive grid.
As shown in Figure 4 b, the first conductive pattern 222 and the second conductive pattern 224 can also be one of each conductive grid Multiple filter unit grids on grid cell face light shield layer.
Wherein, as shown in Figure 4 b, the conductive thread 34 of conductive grid can be straight line.As shown in Fig. 4 c and 4d, conductive mesh The conductive thread 34 of lattice can also be curve, i.e., the grid cell of conductive grid can be Random patterns, as long as conductive thread quilt Shading resin or ink block.Equally, can also be on a grid cell face light shield layer of each conductive grid it is more Individual filter unit grid.
The structure of conductive layer 220 can be to be formed arbitrarily the structure of touch sensible.
Referring to Fig. 5, when conductive layer 220 is individual layer multipoint configuration, the first conductive pattern 222, second of stamping structure The manufacturing process of conductive pattern 224 can be as follows:
(1) polarizer substrate material 210 is provided;
(2) conductive layer 220 is prepared on a surface of polarizer substrate material 210, electric layer 220 includes the first conductive pattern 222 With the second conductive pattern 224.
In the present embodiment, layer of metal layer 212 is plated on the surface of polarizer substrate material 210, glue is then coated with, then passes through erosion Carve the first conductive pattern 222 of formation and the conductive pattern 222 of the second conductive pattern 224 first and the second conductive pattern 224 is mutual Every conductive layer 220 of the formation with induction structure.
(3) glue is coated with conductive layer 220, forms protection glue-line 230.Protection glue-line 230 covers conductive layer 220 completely Lid.In the present embodiment, preferably with UV glue.
The first conductive pattern 222 and the second conductive pattern 224 formed by coated metal can be equally used for knot of putting up a bridge Structure.
Fig. 6 and Fig. 7 are referred to, in another embodiment, conductive layer 220 can also be bridging structure.Conductive layer 220 is also Conducting bridge 226 can be included, conducting bridge 226 is located on the first conductive pattern 230, the conductive pattern of conducting bridge 226 and first Formed with insulating barrier 228 between 222, conducting bridge 226 is electrically connected two second conductions in the both sides of the first conductive pattern 222 Pattern 224.In the present embodiment, conducting bridge 226 be embedded at protection glue-line 230 in, the conductive pattern 222 of conducting bridge 226 and first it Between insulating barrier 228 be glue-line.
Referring to Fig. 6, conducting bridge 226 can be transparent conductive material, be advantageous to improve the printing opacity of polaroid module 200 Rate.In the present embodiment, conducting bridge 226 can form grid lines by the interconnection of conductive thread 34.It is possible to further in conduction The both ends of bridge 226 set the first conducting block 26 and the second conducting block 26 ' respectively, due to the first conducting block 26 and the second conducting block 26 ' surface area is more than conducting bridge 226, and bigger with the contact surface of the second conductive pattern 224, the first conducting block 26 may be electrically connected to At least two conductive threads 34 of the second corresponding conductive pattern 224, the second conducting block 26 ' are electrically connected to corresponding second At least two conductive threads of conductive pattern 224, (if wherein one broken string, others are still for the validity electrically overlapped with guarantee It can so turn on).
Conducting bridge 226 can also be to be formed by imprinting, and can disposably imprint the grid conducting bridge 226 of arch, also may be used The consent of conducting block is initially formed in a manner of first obtaining consent with photolithographic exposure, then imprints and to form lattice portion groove, passes through etching Form the conducting bridge 226 with network and conducting block.
The invention has the advantages that:
(1) the polarisation filtration module in the present invention can realize touch control operation and outgoing polarization light function simultaneously, as display An indispensable component in screen, during in display screen, directly it can make display screen that there is touch controllable function, without showing again Shield the touch-screen of over-assemble one, not only contribute to reduce the thickness of electronic product, while also greatly save material and assembly cost.
(2) grid molding touch control conductive pattern is used in the present invention, can be reached by the width and density for controlling grid lines Visually-clear, the material that conductive pattern is selected only are expanded to all suitable conductive materials with transparent material by tradition, work as conduction When pattern selects metal material, resistance can be reduced greatly to reduce the energy consumption of touch-screen.
(3) conductive pattern passes through pattern imprint shape one-shot forming grid, patterned etch (film forming-exposure-development-erosion Carve) technique disposably turn sow a group impressing mould, per a piece of conductive pattern can an imprinting moulding, mesh shape and pattern One-shot forming, without per a piece of conductive pattern equal patterned etch, enormously simplify manufacturing process, in addition, pattern imprint it After be that targetedly embossed grooves are filled with conductive material, rather than the whole face of base material forms and etched again, can so save Substantial amounts of conductive material, conductive material costly particularly is being used, during such as ITO, cost savings are quite obvious.
(4) contact conductor in conductive pattern is network, is easy to be scratched when filling conductive material, conductive material Easier be retained is not blown off wherein, meanwhile, for nanometer silver paste, in sintering, agglomeration effect generation will not be produced The ping-pong ball that scatters and cause second electrode wire breaking.
(5) conductive thread shading resin or ink projection in the plane just fully fall in shading resin or ink On, conductive thread is blocked by shading resin or ink, does not interfere with the light transmission rate of display screen so, ties the thickness of conductive thread It is required that also without requiring in visually-clear, as long as the thickness of knot conductive thread is less than shading resin or the thickness of ink wire is Can, the technological requirement that conductive grid is molded can be substantially reduced, to reduce production cost.
(6) polarizer substrate material in the present invention is organic flexible base material, raw suitable for high-volume applied to volume to volume technique Production.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.

Claims (11)

  1. A kind of 1. polarisation filtration module, it is characterised in that including:
    Optical filter module, the optical filter module include carrying substrates, shading matrix and the colourama being scattered in shading matrix Resistance, the shading matrix include the ruling formed by light screening material;And
    Polaroid module, the polaroid module include:
    Polarizer substrate material;
    The conductive layer being arranged in the polarizer substrate material, the conductive layer include the first conductive pattern and the second conductive pattern, First conductive pattern and the second conductive pattern spaced formation induced junction on the extension direction of the polarizer substrate material Structure, first conductive pattern and the second conductive pattern include conductive grid, and the conductive grid is by conductive thread interconnection Formed, the conductive thread projects to fall on the ruling of the shading matrix on the shading matrix;And
    Glue-line is protected, is coated on the conductive layer;
    First conductive pattern and the second conductive pattern are to be etched by being attached to the polarizer substrate material surface metal plating layer Obtain, first conductive pattern and the second conductive pattern are embedded at the protection glue-line close to the one of the polarizer substrate material Side;
    The conductive layer also includes conducting bridge, and the conducting bridge is located on first conductive pattern, and with being led positioned at first Electrical pattern opposite sides two the second conductive patterns electrical connection, between the conducting bridge and first conductive pattern formed with Insulating barrier;
    The conducting bridge is formed by transparent conductive material, the both ends of the conducting bridge directly with positioned at first conductive pattern two Two the second conductive patterns overlap joint of side, and each end of the conducting bridge and at least two in corresponding second conductive pattern Bar conductive thread overlaps;
    The conducting bridge is to form conductive grid by conductive thread interconnection, and the conducting bridge is provided at both ends with the first conduction Block and the second conducting block, first conducting block and the second conducting block are electrically connected two in the first conductive pattern both sides Individual second conductive pattern;The surface area of first conducting block and second conducting block is all higher than the surface of the conducting bridge Product;The sectional area of first conducting block and second conducting block is all higher than the sectional area of the conductive thread of the conducting bridge;
    First conducting block is electrically connected at least two conductive threads of the second corresponding conductive pattern, and described second is conductive Block is electrically connected at least two conductive threads of the second corresponding conductive pattern.
  2. 2. polarisation filtration module according to claim 1, it is characterised in that the material of the conductive thread is metal, carbon Nanotube, graphene, organic conductive macromolecule or ITO.
  3. 3. polarisation filtration module according to claim 1, it is characterised in that the line width of conductive thread is not more than the ruling Line width.
  4. 4. polarisation filtration module according to claim 1, it is characterised in that the coat of metal include silver, copper, zinc, gold, At least one of nickel metal.
  5. 5. polarisation filtration module according to claim 1, it is characterised in that the side row of each first conductive pattern At least two the second spaced conductive patterns are shown, second conductive pattern of every one first conductive pattern both sides is mutual Insulation.
  6. 6. polarisation filtration module according to claim 1, it is characterised in that first conductive pattern and the second conductive pattern Case is designed with lead, and the lead is network or solid linear.
  7. 7. polarisation filtration module according to claim 1, it is characterised in that the conducting bridge is embedded at the protection glue-line In, the conducting bridge spaced, Protection glue on the thickness direction of the protection glue-line with first conductive pattern Part of the layer between the conducting bridge and first conductive pattern forms the insulating barrier.
  8. 8. polarisation filtration module according to claim 1, it is characterised in that the protection glue-line is backwards to the optical filter mould Block.
  9. 9. polarisation filtration module according to claim 1, it is characterised in that described to protect glue-line towards the optical filter mould Block and it is held between the polarizer substrate material and the optical filter module.
  10. 10. a kind of touch display screen, it is characterised in that including the TFT electrodes, Liquid Crystal Module, public electrode and such as stacked gradually Polarisation filtration module in claim 1-9 described in any one.
  11. 11. touch display screen according to claim 10, it is characterised in that the protection glue-line of the polaroid module, One conductive pattern and the first conductive pattern are located between the polarizer substrate material and the optical filter module.
CN201310108549.8A 2013-03-30 2013-03-30 Polarisation filtration module and touch display screen Expired - Fee Related CN103425324B (en)

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CN104375690A (en) * 2014-07-08 2015-02-25 深圳市骏达光电股份有限公司 Polarized light induction assembly, preparation method thereof and touch display device
CN108205392A (en) * 2016-12-19 2018-06-26 恒颢科技股份有限公司 Touch panel
CN110764636B (en) 2018-07-25 2021-09-21 京东方科技集团股份有限公司 Touch module, touch display substrate and touch display device

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