CN103336632B - Optical filter box and use the touch display screen of this optical filter box - Google Patents
Optical filter box and use the touch display screen of this optical filter box Download PDFInfo
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Abstract
A kind of optical filter box, including substrate, the first impressing glue-line, the first conductive layer, filter layer, the second impressing glue-line and the second conductive layer, first impressing glue-line and the second impressing glue-line are formed directly into the both sides of substrate, first conductive layer and the second conductive layer are embedded at the first impressing glue-line and the second impressing glue-line respectively, and wherein the conductive thread of the first conductive layer and the second conductive layer all falls within gridline in the projection of filter layer；Above-mentioned optical filter box, the first conductive layer and the second conductive layer constitute induction structure, make optical filter box can have again filtering functions by touch control operation, advantageously reduce the thickness of electronic product, also a saving material and assembly cost；Make use of substrate to have the performance of stronger cohesive force, make the first impressing glue-line and the second impressing glue-line be combined with substrate tightr；The live width of conductive thread can do width simultaneously, increases the conductive capability of conductive layer.There is provided one to touch display screen simultaneously.
Description
Technical field
The present invention relates to flat panel display technology field, particularly relate to a kind of optical filter box and use the touch display screen of this optical filter box.
Background technology
Touch screen is the inductive arrangement that can receive the input signals such as touch.Touch screen imparts the looks that information is brand-new alternately, is extremely attractive brand-new information interactive device.The development of touch screen technology causes the common concern of domestic and international information medium circle, it has also become the Chaoyang new high-tech industry that photovoltaic industry is a dark horse.
At present, there is the electronic product touching display function and all include display screen and the touch screen being positioned on display screen.But, touch screen is as the assembly with display screen independence, when realizing the electronic product of man-machine interaction for some, the size according to display screen is all needed to order, assembling afterwards, to form touch display screen, touch display screen can have simultaneously can touch control operation and display function again.The assembling of existing touch screen and display screen mainly has two ways, and namely frame pastes and entirely fits.Frame patch is to be fitted at the edge of touch screen with display screen, and full laminating is by whole of the upper surface laminating of the lower surface of touch screen Yu display screen.
Display screen mainly includes polaroid, optical filter box, Liquid Crystal Module and thin film transistor (TFT) (TFT, ThinFilmTransistor), when being combined into display screen by polaroid, optical filter box, Liquid Crystal Module and thin film transistor (TFT), there is bigger thickness, and when continuing laminating touch screen on display screen, its thickness will be further increased, furthermore, many one attaching process, it is meant that add the probability that product is bad, are greatly increased the production cost of product.
Summary of the invention
Based on this, it is necessary to for the problem that thickness is bigger and relatively costly, it is provided that a kind of optical filter box advantageously reducing electronic product thickness and production cost and use the touch display screen of this optical filter box.
A kind of optical filter box, including:
Substrate, including first surface and second surface, described first surface and second surface are oppositely arranged；
First impressing glue-line, covers in the first surface of described substrate, and described first impressing glue-line offers the first groove；
First conductive layer, it is embedded at described first impressing glue-line, including multiple first conductive patterns, the plurality of first conductive pattern interval is arranged, described first conductive pattern includes conductive grid, described conductive grid is intersected to form by conductive thread, and conductive thread intersects to form grid node, and described conductive thread is contained in described first groove；
Filter layer, cover and imprint glue-line and the first conductive layer side away from described first surface in described first, including light shielding part and multiple filter unit, described light shielding part is lattice-shaped, including cross one another gridline, the space split by described gridline forms some grid cells, and each filter unit is contained in a grid cell of correspondence, and the plurality of filter unit forms optical filtering portion；
Second impressing glue-line, covers in the second surface of described substrate, and described second impressing glue-line offers the second groove；
Second conductive layer, it is embedded at described second impressing glue-line, including multiple second conductive patterns, it is provided with interval between the plurality of second conductive pattern, described second conductive pattern includes conductive grid, described conductive grid is intersected to form by conductive thread, and conductive thread intersects to form grid node, and described conductive thread is contained in described second groove；
Wherein, the conductive thread of described first conductive layer and the second conductive layer all fully falls on described gridline in the projection of described filter layer.
Wherein in an embodiment, the live width of described conductive thread is not more than the live width of described gridline.
Wherein in an embodiment, the conductive grid of at least one and described filter unit similar fitgures each other in described first conductive layer and described second conductive layer, in described first conductive layer and the second conductive layer, the centrage of the conductive thread of at least one overlaps with the centrage of described gridline in the projection of described filter layer.
Wherein in an embodiment, the thickness of described first conductive layer is not more than the degree of depth of described first groove, and the thickness of described second conductive layer is not more than the degree of depth of described second groove.
Wherein in an embodiment, the thickness in described optical filtering portion is not less than the thickness of described light shielding part.
Wherein in an embodiment, described light shielding part is that the photoresist with black dyes imprints glue-line formation lattice-shaped composition described first.
Wherein in an embodiment, the interval width of adjacent two first conductive patterns of described first conductive layer is 0.5 μm～50 μm, and the interval width of adjacent two the second conductive patterns of described second conductive layer is 0.5 μm～50 μm.
Wherein in an embodiment, the projection on described filter layer of each described conductive grid of described first conductive layer and described second conductive layer accommodates at least one filter unit.
Wherein in an embodiment, filter unit number and the filter unit number of each described conductive grid of described second conductive layer projection accommodation on described filter layer that the projection on described filter layer of each described conductive grid of described first conductive layer is held differ.
A kind of touch display screen, including the TFT electrode, Liquid Crystal Module, optical filter box and the polaroid that stack gradually, described optical filter box is above-described optical filter box.
Above-mentioned optical filter box and use the touch display screen of this optical filter box, optical filter box can realize touch control operation and filtering functions simultaneously, combination as two assemblies indispensable in display screen, for time in display screen, display screen can be directly made to have touch controllable function, without assembling a touch screen more on a display screen, not only contribute to reduce the thickness of electronic product, be also greatly saved material and assembly cost simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation touching display screen of an embodiment；
Fig. 2 is the structural representation of the optical filter box of an embodiment；
Fig. 3 is the structural representation of the optical filter box of another embodiment；
Fig. 4 is the structural representation of the optical filter box of another embodiment；
Fig. 5 is the structural representation of the optical filter box of a further embodiment；
Fig. 6 is the structural representation at another visual angle of the optical filter box shown in Fig. 5；
Fig. 7 is the interval schematic diagram of adjacent two the first conductive patterns or adjacent two the second conductive patterns；
Fig. 8 is the interval schematic diagram of adjacent two the first conductive patterns or adjacent two the second conductive patterns；
Fig. 9 is the structural representation that in an embodiment, conductive thread projects to filter layer；
Figure 10 is the structural representation that in another embodiment, conductive thread projects to filter layer；
Figure 11 is the structural representation that in another embodiment, conductive thread projects to filter layer；
Figure 12 is the structural representation that in a further embodiment, conductive thread projects to filter layer.
Detailed description of the invention
Understandable for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Elaborate a lot of detail in the following description so that fully understanding the present invention.But the present invention can implement being much different from alternate manner described here, and those skilled in the art can do similar improvement when without prejudice to intension of the present invention, therefore the present invention is by the following public restriction being embodied as.
It should be noted that be referred to as " being fixed on " another element when element, it can directly on another element or can also there is element placed in the middle.When an element is considered as " connection " another element, it can be directly to another element or may be simultaneously present centering elements.
Unless otherwise defined, all of technology used herein is identical with the implication that the those skilled in the art belonging to the present invention are generally understood that with scientific terminology.The term used in the description of the invention herein is intended merely to the purpose describing specific embodiment, it is not intended that in the restriction present invention.Term as used herein " and/or " include the arbitrary and all of combination of one or more relevant Listed Items.
The present invention proposes advantageously reduce the optical filter box of electronic product thickness and production cost and use the touch display screen of this optical filter box.This optical filter box can realize touch control operation and filtering functions, so that touching display screen have touch display function.
Refer to Fig. 1, be the touch display screen 100 of an embodiment, including the lower polaroid 10 stacked gradually, TFT electrode 20, Liquid Crystal Module 30, public electrode 40, protecting film 50, optical filter box 200 and upper polaroid 60.In other examples, it is not necessary to protecting film 50 is set and also may be used.
TFT electrode 20 includes glass-base 24 and the show electrode 22 being arranged on glass-base 24.Liquid Crystal Module includes liquid crystal 32 and is held on the alignment film 34 of liquid crystal 32 both sides.
It is appreciated that when using backlight as polarized light source, such as OLED polarized light source, it is not necessary to lower polaroid 10, it is only necessary to upper polaroid 60.The lower polaroid 10 of the present embodiment, TFT electrode 20, Liquid Crystal Module 30, public electrode 40, protecting film 50, the structure of upper polaroid 60 and function can be identical with existing product, do not repeat them here.
Optical filter box 200 have simultaneously can touch control operation and can filtering functions, make touch display screen 100 have touch display function.Touch the LCDs that display screen can be straight-down negative or side entering type light source.
Referring to Fig. 2 to Fig. 5, expression is 200 4 different embodiments of optical filter box.Optical filter box 200 in aforementioned four embodiment all includes substrate 210, first and imprints glue-line the 220, first conductive layer 230, filter layer the 240, second impressing glue-line 250 and the second conductive layer 260.Wherein substrate 210 includes first surface 212 and second surface 214, first surface 212 and second surface 214 and is oppositely arranged.Substrate 210 is transparent insulation material, such as glass, is specifically as follows sillico aluminate glass and calcium soda-lime glass, has good cohesive force through plasma treatment rear surface.General, the thickness range of substrate 210 can be 0.1mm～0.5mm.
First impressing glue-line 220 covers the first surface 212 in substrate 210, and the first impressing glue-line 220 offers the first groove 222 away from the side of first surface 212.First groove 222 is the groove of mesh shape, and mesh shape can be preset to required figure as required.First conductive layer 230 is embedded at the first impressing glue-line 220, including multiple first conductive patterns 232, is provided with interval between multiple first conductive patterns 232, so that multiple first conductive pattern 232 insulate.First conductive pattern 232 includes some conductive grids, and conductive grid is intersected to form by conductive thread 270, and conductive thread 270 intersects to form grid node, and described conductive thread 270 is contained in described first groove 222.In other examples, it is also possible to imprint glue-line 220 first and offer the first groove 222 near the side of first surface 212.
Filter layer 240 covers and imprints glue-line 220 and the first conductive layer 230 side away from the first surface 212 of substrate 210 in first, including light shielding part 242 and multiple filter unit.Light shielding part 242 is in lattice-shaped, including some cross one another gridlines.The space split by gridline forms some grid cells, and each filter unit is contained in a grid cell of correspondence, and multiple filter units form optical filtering portion 244.General, the thickness range in light shielding part 242 and optical filtering portion 244 is 0.5 μm～2 μm.
Second impressing glue-line 250 covers the second surface 214 in substrate 210, and the second impressing glue-line 250 offers the second groove 252 away from the side of second surface 214.Second groove 252 is the groove of mesh shape, and mesh shape can be preset to required figure as required.Second conductive layer 260 is embedded at the second impressing glue-line 250, including multiple second conductive patterns 262.It is provided with interval between multiple second conductive patterns 262, so that multiple second conductive pattern 262 mutually insulated.Second conductive pattern 262 includes some conductive grids, and conductive grid is intersected to form by conductive thread 270, and the conductive thread 270 of the second conductive pattern 262 and the conductive thread 270 of the first conductive pattern 232 are solidify to form by conductive material.Conductive thread 270 intersects to form grid node, and conductive thread 270 is contained in the second groove 252.In other examples, it is also possible to imprint glue-line 250 second and offer the second groove 252 near the side of second surface 214.
Wherein the conductive thread 270 of the first conductive layer 230 and the second conductive layer 260 all fully falls on gridline in the projection of filter layer 240.The live width of conductive thread 270 is not more than the width of gridline, and namely the live width of conductive thread 270 is less than or equal to the width of gridline.As in figure 2 it is shown, the live width of the conductive thread 270 of the first conductive layer 230 and the second conductive layer 260 is equal to the width of gridline, to reduce the manufacture difficulty of conductive thread 270.As it is shown on figure 3, the live width of the conductive thread 270 of either conductive layer is less than the width of gridline in the first conductive layer 230 and the second conductive layer 260, the live width of the conductive thread 270 of another conductive layer, equal to the width of gridline, is conducive to the optimization of cost of manufacture.As shown in Figure 4 and Figure 5, the live width of the conductive thread 270 of the first conductive layer 230 and the second conductive layer 260 is both less than the width of gridline, is exposed to the risk that gridline is lateral reducing conductive thread 270.
Above-mentioned optical filter box 200, the first conductive layer 230 and the second conductive layer 260 constitute capacitive sensing structure, make optical filter box 200 can realize touch control operation and filtering functions simultaneously, and without carrying out design of putting up a bridge, reduce task difficulty.When above-mentioned optical filter box 200 is applied to display screen, can directly make display screen have touch controllable function, it is not necessary to assemble a touch screen more on a display screen, not only contribute to reduce the thickness of electronic product, be also greatly saved material and assembly cost.First impressing glue-line 220 and the second impressing glue-line 250 cover respectively in the both sides of substrate 210 simultaneously, make use of substrate 210 to have the performance of better cohesive force, and the first impressing glue-line 220 and the second impressing glue-line 250 can be made to be combined tightr with substrate 210.When the conductive thread 270 of the first conductive layer 230 and the second conductive layer 260 all fully falls on gridline in the projection of filter layer 240, because light shielding part 242 has opaqueness, thus the first conductive layer 230 and the second conductive layer 260 will not block filter layer 240, the light transmittance of filter layer 240 will not be reduced.
Referring to Fig. 5 and Fig. 6, specific in the present embodiment, optical filtering portion 244 includes chromatic photoresist, is formed with a chromatic photoresist in each grid cell, and chromatic photoresist forms filter unit.Chromatic photoresist is that the photoresist with coloured dye is formed, it is possible to adopt exposure-development processing procedure.Chromatic photoresist is generally red (red, R) photoresistance, green (green, G) photoresistance or indigo plant (blue, B) photoresistance, is used for making incident illumination be transformed into monochromatic light, it is achieved filtering functions.Light shielding part is that the photoresist with black dyes is formed at the first impressing glue-line 220, and light shielding part 242 is in lattice-shaped, has opaqueness, it is possible to adopt exposure-development processing procedure.In lattice-shaped, grid cell is square so that the photoresistance arrangement in optical filtering portion 244 is more compact and uniform.Light shielding part 242 can be prevented effectively from chromatic photoresist colour contamination each other, and can increase the contrast of R, G, B light.
Specific in the present embodiment, the material of the first impressing glue-line 220 and the second impressing glue-line 250 is solvent-free ultra-violet curing acryl resin, and thickness is 2 μm～10 μm.First impressing glue-line 220 and the second impressing glue-line 250 are transparence, do not affect the transmitance of entirety.In other embodiments, the material of the first impressing glue-line 220 and the second impressing glue-line 250 can also be On Visible Light Cured Resin or heat reactive resin.
The above-mentioned optical filter box with touch controllable function, the first conductive pattern 232 and the second conductive pattern 262 are impressing mode and are formed, and specifically can be made by following two mode, and method one is:
(1) first carry out plasma (Plasma) at the first surface 212 of substrate 210 and second surface 214 to process.To remove the first surface 212 of substrate 210 and the dirty of second surface 214, and make first surface 212 and second surface 214 ionizing, increase the follow-up cohesive force imprinting glue-line 220 and the second impressing glue-line 250 with first.
(2) it is coated with impressing glue at the first surface 212 of substrate 210 and second surface 214 simultaneously, forms the first impressing glue-line 220 and the second impressing glue-line 250 respectively.The present embodiment adopts solvent-free ultra-violet curing acryl resin.And carry out imprinting and solidifying at the first impressing glue-line 220 and the second impressing glue-line 250 surface respectively with impression block nested with the first conductive pattern 232 and the second conductive pattern 262 respectively, obtain required the first groove 222 and the second groove 252 mated with the first conductive pattern 232 and the second conductive pattern 262.Wherein, impression block is transparent material, can avoid the mutual shading in two sides, it is impossible to ultraviolet (UV) solidifies.
(3) simultaneously filled conductive material solidifying in the first groove 222 mated respectively with the first conductive pattern 232 and the second conductive pattern 262 and the second groove 252, obtains the first conductive layer 230 and the second conductive layer 260.Conductive material includes at least one in metal, CNT, Graphene, organic conductive macromolecule and ITO, forms the conductive grid being made up of conductive thread 270 intersection.It is preferably metal, such as nanometer silver paste.When selecting metal, it is possible to decrease resistance and reduction touch the energy consumption of display screen.
(4) layer protecting film 50 is covered in the second whole face, side imprinting glue-line 250 and the second conductive layer 260.Can being the transparent protective film 50 being coated with/plating, final products retain；Can also be one layer of intermediate process protecting film 50, finally remove, to avoid affecting when making filter layer 240 effect of the second conductive pattern 262.
(5) one layer of photoresist with black dyes is covered in the first whole face, conductive pattern 232 surface.
(6) adopt exposure-development technology, removed by the photoresist in filter unit region, form the light shielding part 242 of lattice-shaped, gridline the space split forms some grid cells.And ensure that the conductive thread 270 of the first conductive layer 230 and the second conductive layer 260 falls into the live width of gridline and conductive thread 270 in the projection of filter layer 240 and is not more than the width of gridline.
(7) R/G/B chromatic photoresist is set in grid cell gradation, forms optical filtering portion 244.If in above-mentioned 4th step is intermediate process protecting film 50, also need to be removed after the 7th step.
In said method, the first impressing glue-line 220 and the second impressing glue-line 250 are coated with simultaneously, are conducive to simple flow, improve efficiency.
Method two is:
(1) Plasma process is first carried out at the first surface 212 of substrate 210 and second surface 214, remove the dirty of substrate 210 first surface 212 and second surface 214, and make first surface 212 and second surface 214 ionizing, increase the follow-up cohesive force imprinting glue-line 220 and the second impressing glue-line 250 with first.
(2) being coated with the first impressing glue-line 220 at the first surface 212 of substrate 210, the present embodiment adopts solvent-free ultra-violet curing acryl resin.And the impression block that use and the first conductive pattern 232 are nested carries out imprinting and solidifying on the first impressing glue-line 220 surface, obtain the first groove 222 mated with the first conductive pattern 232.
(3) to filled conductive material in the first groove 222 and solidify, the first conductive layer 230 is obtained.Conductive material can be at least one in metal, CNT, Graphene, organic conductive macromolecule or ITO, forms the conductive grid being made up of conductive thread 270.It is preferably metal, such as nanometer silver paste.When selecting metal, it is possible to decrease resistance and reduction touch the energy consumption of display screen.
(4) one layer of photoresist with black dyes is covered in the first whole face, conductive pattern 232 surface.
(5) exposure-development technology is adopted, the photoresist in filter unit region is removed, form the light shielding part 242 of lattice-shaped, and ensure that the conductive thread 270 of the first conductive layer 230 falls into the live width of gridline and conductive thread 270 in the projection of filter layer 240 and is not more than the width of gridline.
(6) plate/coat R/G/B chromatic photoresist in the gradation of filter unit region, form optical filtering portion 244.Optical filtering portion 244 and light shielding part 242 form filter layer 240.
(7) layer protecting film 50 is covered in whole face, filter layer 240 side, to avoid affecting the effect of filter layer 240 when making the second conductive pattern 262.Can being the transparent protective film 50 being coated with/plating, final products retain；Can also be one layer of intermediate process protecting film 50, finally remove.
(8) it is coated with the second impressing glue-line 250 at the second surface 214 of substrate 210.The present embodiment adopts solvent-free ultra-violet curing acryl resin.And the impression block that use and the second conductive pattern 262 are nested carries out imprinting and solidifying on the second impressing glue-line 250 surface, obtain the second groove 252 mated with the second conductive pattern 262.
(9) to filled conductive material in the second groove 252 and solidify, obtain the second conductive layer 260, and ensure that the conductive thread 270 of the second conductive layer 260 falls into gridline in the projection of filter layer 240.Conductive material can be metal, CNT, Graphene, organic conductive macromolecule or ITO, forms the conductive grid being made up of conductive thread 270.It is preferably metal, such as nanometer silver paste.When selecting metal, it is possible to decrease resistance and reduction touch the energy consumption of display screen.If in above-mentioned 7th step is intermediate process protecting film 50, also need to be removed after the 9th step.
The conductive grid of at least one conductive layer and described filter unit similar fitgures each other in described first conductive layer 230 and described second conductive layer 260, in described first conductive layer 230 and the second conductive layer 260, the centrage of the conductive thread 270 of at least one conductive layer overlaps with the centrage of described gridline in the projection of described filter layer 240.I.e. conductive thread 270 positive alignment gridline.Conductive grid is that conductive thread 270 intersects to form, and grid cell is formed by gridline segmentation, and filter unit is formed at grid cell.So in the present embodiment, it is possible to the shape making conductive grid is identical with the shape of filter unit but varies in size, i.e. conductive grid and filter unit similar fitgures each other ensure that the conductive grid projection at filter layer 240 is without departing from gridline simultaneously.
Referring to Fig. 5, specific in the present embodiment, the centrage of the conductive thread 270 of the first conductive layer 230 and the second conductive layer 260 all overlaps with the centrage of gridline in the projection of filter layer 240.Further reduce conductive thread 270 and expose the probability of gridline region.Certainly, in other embodiments, in all right first conductive layer 230 and the second conductive layer 260, the conductive thread 270 of either conductive layer is just to gridline, the conductive thread 270 of an other conductive layer meets the projection at filter layer 240 without departing from the scope of gridline, owing to the first conductive layer 230 and the second conductive layer 260 are blocked by gridline in the backlight exit direction of display screen, the conductive grid not had on the first conductive layer 230 and the second conductive layer 260 superposed with the grid cycle of louver (-vre), therefore, effectively prevent Moire fringe phenomenon.
The thickness of described first conductive layer 230 is not more than the degree of depth of described first groove 222, and the thickness of described second conductive layer 260 is not more than the degree of depth of described second groove 252.Specific in the present embodiment, the thickness of the first conductive layer 230 is less than the thickness of the first groove 222, and the degree of depth of the first groove 222 imprints the thickness of glue-line 220 less than first.Second conductive layer 260 is less than the degree of depth of the second groove 252, and the degree of depth of the second groove 252 imprints the thickness of glue-line 250 less than second, it is possible to prevent the first conductive layer 230 and the second conductive layer 260 to be scraped off in subsequent technique after being formed.
Referring to Fig. 5 and Fig. 6, specific in the present embodiment, the thickness in optical filtering portion 244 is not less than the thickness of light shielding part 242.In other words the thickness of filter unit is more than or equal to the thickness of gridline.When the thickness in optical filtering portion 244 is more than the thickness of light shielding part 242, from the light that optical filtering portion 244 appears, not only from front it will be seen that from the side it can be seen that, such that it is able to increase the light emission rate in optical filtering portion 244.
Specific in the present embodiment, adjacent conductive patterns arranges interval, with mutually insulated.As shown in Figure 7 and Figure 8, the schematic diagram of the different modes at the interval of adjacent two the first conductive patterns 232 or adjacent two the second conductive patterns 262.As it is shown in fig. 7, in one embodiment, expression is adjacent two the first conductive patterns 232 or adjacent two the second conductive pattern 262 interval widths width that is a filter unit.Now can pass through full line or permutation conductive thread 270 lacks, cut off.As shown in Figure 8, in other embodiments, it is also possible to the interval width of second conductive pattern 262 of adjacent two the first conductive patterns 232 or adjacent two is 0.5 μm～50 μm.Now can pass through to cut off conductive thread 270 marginal portion disappearance.In other embodiments, the width that interval width is a filter unit of adjacent two the first conductive patterns 232, the interval width of adjacent two the second conductive patterns 262 is 0.5 μm～50 μm.
Referring to Fig. 6, specific in the present embodiment, conductive thread 270 is straight line, curve or broken line.When conductive thread 270 can be difformity, reduce production requirement.
As it is shown in figure 9, the projection that each conductive grid of the first conductive layer 230 and the second conductive layer 260 is on filter layer 240 accommodates a filter unit.Because the conductive thread 270 of the first conductive layer 230 and the second conductive layer 260 is all directed at gridline, so the filter unit held is integer, quantity is one.Because each grid cell is to there being a conductive grid, so the density of conductive grid is relatively big, electric conductivity is better.
As shown in Figure 10 to Figure 12, the projection on filter layer 240 of each conductive grid of the first conductive layer 230 and the second conductive layer 260 accommodates at least two filter unit.Because the conductive thread 270 of the first conductive layer 230 and the second conductive layer 260 is all directed at gridline, so the filter unit held is integer, quantity is at least two, it is possible to determine the filter unit quantity held according to the requirement of the coating weight to the resistance requirement of conductive layer and conductive material.
Now can being divided into three kinds of situations, with transverse direction for X-axis, the direction of vertical transverse is Y-axis.As shown in Figure 10, only in the X-axis direction, at least two filter unit is held in the projection on filter layer 240 of each conductive grid of the first conductive layer 230 and the second conductive layer 260.As shown in figure 11, only in the Y-axis direction, at least two filter unit is held in the projection on filter layer 240 of each conductive grid of the first conductive layer 230 and the second conductive layer 260.As shown in figure 12, simultaneously in X-axis and Y direction, at least two filter unit is held in the projection on filter layer 240 of each conductive grid of the first conductive layer 230 and the second conductive layer 260.
Specific in the present embodiment, filter unit number and the filter unit number of each conductive grid of the second conductive layer 260 projection accommodation on filter layer that the projection on filter layer 240 of each conductive grid of the first conductive layer 230 is held can differ.Can effectively reduce manufacture difficulty.Certainly, in other examples, the projection on filter layer 240 of each conductive grid of the first conductive layer 230 is held filter unit number and the filter unit number of each conductive grid of the second conductive layer 260 projection accommodation on filter layer can also be identical.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for the person of ordinary skill of the art, without departing from the inventive concept of the premise, it is also possible to making some deformation and improvement, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. an optical filter box, it is characterised in that including:
Substrate, including first surface and second surface, described first surface and second surface are oppositely arranged；
First impressing glue-line, covers in the first surface of described substrate, and described first impressing glue-line offers the first groove back on the surface of described substrate；
First conductive layer, it is embedded at described first impressing glue-line, including multiple first conductive patterns, the plurality of first conductive pattern interval is arranged, described first conductive pattern includes conductive grid, described conductive grid is intersected to form by conductive thread, and conductive thread intersects to form grid node, and described conductive thread is contained in described first groove；
Filter layer, cover and imprint glue-line and the first conductive layer side away from described first surface in described first, including light shielding part and multiple filter unit, described light shielding part is lattice-shaped, including cross one another gridline, the space split by described gridline forms some grid cells, and each filter unit is contained in a grid cell of correspondence, and the plurality of filter unit forms optical filtering portion；
Second impressing glue-line, covers in the second surface of described substrate, and described second impressing glue-line offers the second groove；
Second conductive layer, it is embedded at described second impressing glue-line, including multiple second conductive patterns, it is provided with interval between the plurality of second conductive pattern, described second conductive pattern includes conductive grid, the conductive grid of described second conductive pattern is intersected to form by conductive thread, and the conductive thread of described second conductive layer intersects to form grid node, and the conductive thread of described second conductive layer is contained in described second groove；
Wherein, the conductive thread of described first conductive layer and the conductive thread of described second conductive layer all fully fall on described gridline in the projection of described filter layer, and described gridline directly contacts with the conductive thread of described first conductive layer.
2. optical filter box according to claim 1, it is characterised in that the live width of the conductive thread of described first conductive layer and the conductive thread of described second conductive layer is not more than the live width of described gridline.
3. optical filter box according to claim 1, it is characterized in that, the conductive grid of at least one and described filter unit similar fitgures each other in described first conductive layer and described second conductive layer, in described first conductive layer and the second conductive layer, the centrage of the conductive thread of at least one overlaps with the centrage of described gridline in the projection of described filter layer.
4. optical filter box according to claim 1, it is characterised in that the thickness of described first conductive layer is not more than the degree of depth of described first groove, and the thickness of described second conductive layer is not more than the degree of depth of described second groove.
5. optical filter box according to claim 1, it is characterised in that the thickness in described optical filtering portion is not less than the thickness of described light shielding part.
6. optical filter box according to claim 1, it is characterised in that described light shielding part is that the photoresist with black dyes imprints, described first, the lattice-shaped structure that glue-line is formed.
7. optical filter box according to claim 1, it is characterized in that, the interval width of adjacent two first conductive patterns of described first conductive layer is 0.5 μm～50 μm, and the interval width of adjacent two the second conductive patterns of described second conductive layer is 0.5 μm～50 μm.
8. optical filter box according to claim 1, it is characterised in that the projection on described filter layer of each described conductive grid of described first conductive layer and described second conductive layer accommodates at least one filter unit.
9. optical filter box according to claim 8, it is characterized in that, filter unit number and the filter unit number of each described conductive grid of described second conductive layer projection accommodation on described filter layer that the projection on described filter layer of each described conductive grid of described first conductive layer is held differ.
10. one kind touches display screen, it is characterised in that including the TFT electrode, Liquid Crystal Module, optical filter box and the polaroid that stack gradually, described optical filter box is the optical filter box in claim 1 to 9 described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310282842.6A CN103336632B (en) | 2013-07-05 | 2013-07-05 | Optical filter box and use the touch display screen of this optical filter box |
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Effective date of registration: 20210303 Address after: 231323 Building 1, precision electronics industrial park, Hangbu Town, Shucheng County, Lu'an City, Anhui Province Patentee after: Anhui jingzhuo optical display technology Co.,Ltd. Address before: 330000 Huang Jia Hu Road, Nanchang economic and Technological Development Zone, Nanchang, Jiangxi Patentee before: Nanchang OFilm Tech. Co.,Ltd. |
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