The utility model content
Based on this, be necessary to provide a kind of touch display screen that is conducive to reduce the optical filter box of electronic installation thickness and uses this optical filter box.
A kind of optical filter box comprises:
Glass baseplate;
The first conductive layer, comprise the first conductive pattern of being located on described glass baseplate, and described the first conductive pattern comprises continuous conductive grid, and described conductive grid is intersected to form by conductive thread;
The impression glue-line, be arranged on described glass baseplate and described the first conductive pattern, and described the first conductive pattern is embedded the side near described first surface at described impression glue-line;
The second conductive layer, comprise and be embedded the second conductive pattern away from a side of described glass baseplate at described impression glue-line; Described the second conductive pattern comprises continuous conductive grid, and described conductive grid is intersected to form by conductive thread; Described the first conductive pattern and described the second conductive pattern space on the thickness direction of described impression glue-line forms induction structure;
The shading matrix layer, be arranged on the side of described impression glue-line away from described glass baseplate, and described shading matrix layer comprises cross one another ruling, and described ruling intersects to form a plurality of grid cells; And
The colorama resistance layer, be arranged on the side of described impression glue-line away from described glass baseplate, comprises a plurality of chromatic photoresists unit, and each described chromatic photoresist unit is arranged in a described grid cell;
The projection of the conductive thread of described the first conductive pattern and described the second conductive pattern on described shading matrix layer all falls on the ruling of described shading matrix layer.
In embodiment, the live width of described conductive thread is less than the width of described ruling therein.
In embodiment, in described the first conductive pattern and described the second conductive pattern, the live width of the conductive thread of one of them is 0.2 micron~5 microns therein.
In embodiment, described conductive thread intersects to form grid node mutually therein, and the distance between two adjacent grid nodes is 50 microns~500 microns.
In embodiment, described conductive grid comprises a plurality of grid cells therein, and a chromatic photoresist unit is at least held in the projection of each grid cell on described colorama resistance layer.
Therein in embodiment, described the first conductive layer is processed the first conductive pattern that obtains a plurality of spaces by whole complete conductive grid broken, described the second conductive layer is processed the second conductive pattern that obtains a plurality of spaces by whole complete conductive grid broken.
Therein in embodiment, the interval width of two adjacent described the first conductive patterns in described the first conductive layer is 0.5 micron~50 microns, and the interval width of two adjacent described the second conductive patterns in described the second conductive layer is 0.5 micron~50 microns.
In embodiment, the thickness of described colorama resistance layer is more than or equal to the thickness of described shading matrix layer therein.
Therein in embodiment, described impression glue-line offers the groove of shape and described the second conductive pattern coupling, described the second conductive pattern is contained in described groove, the degree of depth of described groove is less than the thickness of described impression glue-line, and the thickness of described the second conductive pattern is less than or equal to the degree of depth of described groove.
A kind of touch display screen, comprise the film crystal pipe electrode, Liquid Crystal Module, optical filter box and the polaroid that stack gradually, and described optical filter box is the as above described optical filter box of any one.
Above-mentioned optical filter box and use the touch display screen of this optical filter box, optical filter box can be realized touch control operation and filtering functions simultaneously, combination as indispensable two assemblies in display screen, during for display screen, can directly make display screen there is touch controllable function, without assemble again a touch-screen on display screen, not only be conducive to reduce the thickness of electronic product, also greatly saved material and assembly cost simultaneously.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.A lot of details have been set forth in the following description so that fully understand the utility model.But the utility model can be implemented much to be different from alternate manner described here, those skilled in the art can be in the situation that do similar improvement without prejudice to the utility model intension, so the utility model is not subject to the restriction of following public concrete enforcement.
It should be noted 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 directly connected to another element or may have centering elements simultaneously.
Unless otherwise defined, all technology that this paper is used are identical with the implication that belongs to the common understanding of those skilled in the art of the present utility model with scientific terminology.The term used in instructions of the present utility model herein, just in order to describe the purpose of specific embodiment, is not intended to be restriction the utility model.Term as used herein " and/or " comprise one or more relevant Listed Items arbitrarily with all combinations.
The utility model proposes a kind of optical filter box and use the touch display screen of this optical filter box.This optical filter box can be realized touch operation and optical filter function, thereby makes touch display screen have the touch Presentation Function.
Refer to Fig. 1, the touch display screen 100 of an embodiment, comprise the lower polaroid 10, TFT electrode 20, Liquid Crystal Module 30, public electrode 40, diaphragm 50, optical filter box 200 and the upper polaroid 60 that stack gradually.
The lower polaroid 10 of the present embodiment, thin film transistor (TFT) (Thin Film Transistor; TFT) structure of electrode 20, Liquid Crystal Module 30, public electrode 40, diaphragm 50 and upper polaroid 60 and function can be identical with existing product, do not repeat them here.
Be appreciated that for what to use backlight be polarized light source, as the OLED polarized light source, without lower polaroid 10, only need upper polaroid 60 to get final product.Diaphragm 50 also can omit.
Optical filter box 200 has tangible operation and filtering functions simultaneously, makes display screen have the touch Presentation Function.Display screen can be the LCDs of straight-down negative or side entering type light source.
Following emphasis is described optical filter box 200.
Refer to Fig. 2, optical filter box 200 comprises glass baseplate 22, impression glue-line 24, the first conductive layer 25, the second conductive layer 26, shading matrix layer (Black Matrix, BM) 27, colorama resistance layer 28.The first conductive layer 25 and the second conductive layer 26 spaces form induction structure.
Glass baseplate 22 is the transparent insulation material, and as glass, its material can be sillico aluminate glass or calcium soda-lime glass, and glass baseplate 22 comprises relative first surface 222 and second surface 224.When assembling touch display screen 100, first surface 222 is towards Liquid Crystal Module 30, and second surface 224 is towards polaroid 60.
The first conductive layer 25 is arranged on the first surface 222 of described glass baseplate 22, and the first conductive layer 25 comprises the first conductive pattern 252.The first conductive pattern 252 can pass through plating/matel coated layer on the first surface 222 of glass baseplate 22, then obtains through etching.The material of metal level can be at least one in the metal such as molybdenum on gold, silver, copper, aluminium, zinc, tin.
Refer to Fig. 3, the first conductive pattern 252 comprises continuous conductive grid, and conductive grid is intersected to form by conductive thread a, and the basic grid that conductive thread a forms can be regular polygon, as square, rhombus, regular hexagon etc.The basic grid that conductive thread a forms can also be random grid.Conductive thread a can be straight line, curve or broken line.The projection of conductive thread a on shading matrix layer 27 of the first conductive pattern 252 all falls on the ruling of shading matrix layer 27.In the present embodiment, the width of conductive thread a equates with the ruling ruling width of shading matrix layer 27, and what the silk thread live width can be done relatively like this is wider, to reduce the manufacture difficulty of conductive thread.Guarantee can not expose that shading matrix layer 27 affects chromatic photoresist to the chromatic photoresist zone goes out light effect and product appearance effect simultaneously.
In one embodiment, refer to Fig. 4, the conductive thread a of the first conductive pattern 252 all falls on the ruling of shading matrix layer 27 in the projection of shading matrix layer 27, and the width of conductive thread a is less than the width of ruling, to reduce conductive thread a, is exposed to the outer risk of ruling.
In another embodiment, the live width of conductive thread a can be 0.2 micron~5 microns, and conductive thread a intersects to form grid node mutually, and the distance between adjacent two grid nodes is 50 microns~500 microns, and to realize the visually-clear effect, naked eyes are invisible.Further guarantee high light transmittance.Now, the basic grid that conductive thread a forms can also random grid.
Impression glue-line 24 arranges on the first surface 222 of glass baseplate 22, and covers the first conductive pattern 252.The first conductive layer 25 is arranged on the side of impression glue-line 24 near glass baseplate 22.Impression glue-line 24 is transparence, and thickness is 2 microns~10 microns, does not affect whole transmitance.The material of impression glue-line 24 can be solvent-free ultra-violet curing acrylic resin, On Visible Light Cured Resin or heat reactive resin.
Refer to Fig. 2, the second conductive layer 26 is arranged on the side of impression glue-line 24 away from glass baseplate 22.The second conductive layer 26 comprises the second conductive pattern 262.The second conductive pattern 262 can be by the groove 242 that has shape and the second conductive pattern 262 to mate on the impression side of glue-line 24 away from glass baseplate 22, then makes after filled conductive material cured in groove 242.The degree of depth of groove 242 is less than the thickness of impression glue-line 24, and the thickness of the second conductive pattern 262 is less than or equal to the degree of depth of groove 242.The conductive material of filling can be metal, carbon nano-tube, and Graphene, organic conductive macromolecule and ITO, be preferably metal, as nanometer silver paste.While adopting the impression mode, the degree of depth of groove 242 is less than the thickness of impression glue-line 24, and the thickness of the conductive material of accommodating in groove 242 is less than or equal to the degree of depth of groove 242.Can avoid conductive layer in successive process by scratch.
Refer to Fig. 2 and 3, the second conductive patterns 262 comprise continuous conductive grid, conductive grid is intersected to form by conductive thread a.The basic grid that conductive thread a forms can be regular polygon, as square, rhombus or regular hexagon.Conductive thread a can straight line, curve or broken line.The projection of conductive thread a on shading matrix layer 27 of the second conductive pattern 262 all falls on the ruling of shading matrix layer 27.In the present embodiment, the width of conductive thread a equates with the ruling width of shading matrix layer 27, and what the live width of conductive thread a can be done relatively like this is wider, to reduce the manufacture difficulty of conductive thread a.And that can not expose that shading matrix layer 27 affects chromatic photoresist to chromatic photoresist zone goes out light effect and product appearance effect.
In one embodiment, refer to Fig. 4, the conductive thread a of the second conductive pattern 262 all falls on the ruling of shading matrix layer 27 in the projection of shading matrix layer 27, and the width of conductive thread a is less than the width of ruling, to reduce conductive thread a, is exposed to the outer risk of ruling.
In another embodiment, the live width of conductive thread a can be 0.2 micron~5 microns, and conductive thread a intersects to form grid node mutually, and the distance between adjacent two grid nodes is 50 microns~500 microns, and to realize the visually-clear effect, naked eyes are invisible.Further guarantee high light transmittance.Now, the basic grid that conductive thread a forms can also random grid.
Refer to Fig. 5, the first conductive pattern 252 and the second conductive pattern 262 can be separated to form whole complete conductive grid for processing by broken string.A plurality of the first conductive patterns 252 and a plurality of the second conductive pattern 262 space insulation respectively form induction structure.Figure 5 shows that arbitrary conductive layer in the first conductive layer 25 and the second conductive layer 26 processes the schematic diagram of the space of a plurality of conductive patterns that (seeing square frame b place on figure) obtain by broken string.The conductive thread a of whole the first conductive layer 25 is broken and processes the first conductive pattern 252 that obtains the space insulation, and the internodal distance of conductive thread two broken string is 0.5 micron~50 microns.252 separate, insulation that a plurality of the first conductive patterns conduct electricity.Equally, to the conductive thread a of whole the second conductive layer 26 the second conductive pattern 262 that obtains the space insulation that breaks that processing break and process, the conductive thread two internodal distance that breaks is 0.5 micron~50 microns.262 separate, insulation that a plurality of the second conductive patterns conduct electricity.
The basic grid shape of the conductive thread a of the first conductive layer 25 and the second conductive layer 26 can with the similar fitgures that are shaped as of shading matrix layer 27 grid, similar to the shape of the chromatic photoresist unit 282 of colorama resistance layer 28, the grid that conductive thread a forms overlaps with the ruling intersection point of shading matrix layer 27 at the intersection point of the projection of shading matrix layer 27.At least one chromatic photoresist unit 282 of the inclusive projection of basic grid unit on colorama resistance layer 28 of the conductive thread a of the first conductive layer 25 and the second conductive layer 26 specifically can be divided into four kinds of situations:
1, the basic grid unit of conductive thread a is corresponding one by one with chromatic photoresist unit 282, and the mesh lines of conductive thread a is apart from being shading matrix layer 27 and adjacent two distance between center lines, as shown in Figure 6.2, only for example, on first axial (transverse axis), the mesh lines of conductive thread a is apart from being the same axially integral multiple of adjacent two distance between center lines of shading matrix layer 27, in a plurality of complete chromatic photoresist unit 282 of the inclusive projection of basic grid unit on shading matrix layer 27 of the conductive thread a of X direction, as shown in Figure 7.3, only for example, on second axial (longitudinal axis), the mesh lines of conductive thread a is apart from being the same axially integral multiple of adjacent two distance between center lines of shading matrix layer 27, in a plurality of complete chromatic photoresist unit 282 of the inclusive projection of basic grid unit on shading matrix layer 27 of the conductive thread a of y direction, as shown in Figure 8.4, first axially and second axially on, the mesh lines of conductive thread a is apart from being all the same axially integral multiple of adjacent two distance between center lines of shading matrix layer 27, the i.e. projection of basic grid unit on shading matrix layer 27 at the conductive thread a of transverse axis and y direction all comprises a plurality of complete chromatic photoresist unit 282, as shown in Figure 9.
Refer to Figure 10, shading matrix layer 27 is arranged on impression glue-line 24 and the second surface of conductive layer 26 away from glass baseplate 22.Shading matrix layer 27 comprises cross one another ruling, and these rulings intersect to form a plurality of grid cells.Grid cell is for accommodating the chromatic photoresist material.The material of shading matrix layer 27 is with the photoresist of black dyes or crome metal, and it can adopt exposure, developing manufacture process to obtain.
Colorama resistance layer 28 is arranged on impression glue-line 24 and the second surface of conductive layer 26 away from glass baseplate 22.Colorama resistance layer 28 comprises a plurality of chromatic photoresists unit 282, and each chromatic photoresist unit 282 is arranged in a corresponding grid cell.The material of colorama resistance layer 28 can be the photoresist with coloured dye, for example red (red, R), green (green, G), blue colors such as (blue, B), and colorama resistance layer 28 can adopt exposure, the formation of developing.Colorama resistance layer 28 is distributed among the grid cell of shading matrix layer 27 formation, and colorama resistance layer 28 and shading matrix layer 27 are distributed on the surface of impression glue-line 24.In the present embodiment, the chromatic photoresist of colorama resistance layer 28 is the R/G/B chromatic photoresist.
As shown in figure 10, the thickness of colorama resistance layer 28 is greater than the thickness of shading matrix layer 27, can increase like this light emission rate of light.If the thickness of colorama resistance layer 28 is less than the thickness of shading matrix layer 27, looking that colorama resistance layer 28 is similar to is embedded in shading matrix layer 27, shading matrix layer 27 covers light, therefore from the colorama resistance layer, 26 light out can only be seen from front, side is easily blocked by shading matrix layer 27, is unfavorable for bright dipping.And the thickness of working as colorama resistance layer 28 is greater than the thickness of shading matrix layer 27; the top of colorama resistance layer 28 is similar to and embeds in impression glue-line 24; impression glue-line 24 is filled and led up the gap between chromatic photoresist, and impression glue-line 24 plays the effect of protection chromatic photoresist and grid moulding simultaneously.Please again consult Fig. 2, in other embodiments, the thickness of colorama resistance layer 28 also can equal the thickness of shading matrix layer 27.
The above-mentioned optical filter box with the touch-control effect 200, its manufacturing process is as follows:
(1) carry out plasma (Plasma) on a surface of glass baseplate and process, remove the dirty of glass surface, and make surface ion, increase follow-up and cohesive force other material.
(2) whole metal cladding or painting layer of metal conductive ink on the surface of the glass baseplate of processing through Plasma.The present embodiment is adopted as argent.
(3) coating one deck photoresist, through overexposure-developing technique, only retain the photoresist that covers the first conductive layer part, and the photoresist that all the other are local is removed.
(4) utilize metal etch liquid to carry out etching to above-mentioned metal level, obtain the grid silk thread of the first conductive layer of required pattern.
(5) at above-mentioned whole coating impression glue of glass basic surface that covers the first conductive layer, and use the impression block be nested with the second conductive pattern impressed and solidify on impression glue surface, obtain the grid groove that required the second conductive layer is corresponding.The present embodiment adopts polymethylmethacrylate (polymethyl methacrylate, PMMA) UV cured resin as impression glue.
(6), to filled conductive material in the grid groove and solidify, obtain the second conductive layer.Conductive material can be metal, carbon nano-tube, and Graphene, organic conductive macromolecule and ITO, form the conductive grid that conductive thread forms; Be preferably metal, as nanometer silver paste.
(7) at above-mentioned impression glue and whole painting of the second conductive layer surface/plating shading matrix material, adopt exposure-developing technique, the shading matrix material of chromatic photoresist corresponding region is removed, obtain the shading matrix layer.
(8) plate/coat the R/G/B chromatic photoresist in the corresponding region gradation, obtain the colorama resistance layer.
In above-mentioned optical filter box and touch display screen, in the touch display screen of above-mentioned optical filter box and this optical filter box of use, comprise glass substrate, be arranged on impression glue-line on glass substrate, be distributed in the first conductive layer and second conductive layer of the both sides of impression glue-line, and being arranged on shading matrix layer and the colorama resistance layer on the impression glue-line, the first conductive layer and the second conductive layer form induction structure in the insulation of impression bondline thickness direction space.As an indispensable assembly in display screen, during for display screen, can directly make display screen there is touch controllable function, without assemble again a touch-screen on display screen, not only be conducive to reduce the thickness of electronic product, also greatly saved material and assembly cost simultaneously.
Further, the projection of the conductive thread of the first conductive pattern and described the second conductive pattern on the shading matrix layer all falls on the ruling of shading matrix layer, conductive thread does not exceed ruling, thereby can not block seeing through of light source, thereby higher transmittance is arranged, can guarantee that the visually-clear effect is better.And conductive layer is arranged on the both sides of impression glue-line, has avoided the scratch of conductive layer.In addition, above-mentioned optical filter box and touch display screen also have following advantage:
(1) first conductive thread obtains by metal etch; The second conductive thread adopts the impression mode to make, by these two kinds of modes, conductive thread in the first conductive layer and the second conductive layer can be all visually-clear, and therefore, the material that conductive pattern is selected can only expand all suitable conductive materials to transparent material by tradition.When the conductive material of conductive thread is selected metal material, the energy consumption that can greatly reduce resistance and reduce touch-screen.
(2) carefully to visually-clear or over against the shading matrix ruling, arranged when the conductive grid silk thread, so the user can not see conductive grid in use.
(3) the above-mentioned optical filter box with touch controllable function is double-deck conductive structure, without the design of putting up a bridge, greatly reduces task difficulty.
(4) above-mentioned conductive pattern adopts the metal grill structure, adopts imprint process to be manufactured, the technique compared to traditional ITO film as conductive layer, mesh shape can a step form, and technique is simple, does not need the expensive device such as sputter, evaporation, yield is high, is applicable to large tracts of land, production in enormous quantities.And if replace ITO with metal, material cost reduces greatly, owing to not needing to use etching technics, can not cause the waste of conductive, and environmentally friendly.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.