CN203338315U - Optical filter assembly and touch displaying screen with optical filter assembly - Google Patents
Optical filter assembly and touch displaying screen with optical filter assembly Download PDFInfo
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- CN203338315U CN203338315U CN201320401110XU CN201320401110U CN203338315U CN 203338315 U CN203338315 U CN 203338315U CN 201320401110X U CN201320401110X U CN 201320401110XU CN 201320401110 U CN201320401110 U CN 201320401110U CN 203338315 U CN203338315 U CN 203338315U
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Abstract
The utility model relates to an optical filter assembly which comprises a substrate, a light filtering layer and a conducting layer. The light filtering layer is arranged on one side of the substrate in a covering mode and comprises a light shading portion and multiple light filtering units. The light shading portion is in the shape of a grid and comprises crossed gird lines. A first groove and a second groove are formed in the side, away from the substrate, of the light shading portion. Spaces divided by the grid lines form multiple grid units. Each light filtering unit is correspondingly contained in a grid unit to form a light filtering portion. The conducting layer is embedded in the light shading portion and comprises a first conducting pattern and a second conducting pattern. The first conducting pattern and the second conducting pattern are mutually isolated in a plane extension direction of the light filtering layer to form a sensing structure. The first conducting pattern and the second conducting pattern include conducting grids composed of conducting wires. The width of conducting wires of the first conducting pattern and the second conducting pattern is no larger than that of the grid lines. The optical filter assembly can achieve touch operation and has the function of filtering light, reduction of the thickness of an electronic product is facilitated and materials and assembling cost are saved. The utility model provides a touch displaying screen.
Description
Technical field
The utility model relates to the touching technique field, particularly relates to a kind of optical filter box and uses 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 has given information interaction brand-new looks, is extremely attractive brand-new information interaction equipment.The development of touch screen technology has caused the common concern of domestic and international information medium circle, has become the Chaoyang new high-tech industry that the photoelectricity industry is a dark horse.
At present, having the electronic product that touches Presentation Function includes display screen and is positioned at the touch-screen on display screen.Yet, touch-screen as with display screen assembly independently, when for some, realizing the electronic product of man-machine interaction, all need to be ordered according to the size of aobvious screen, assembled again afterwards.The assembling of existing touch-screen and display screen mainly contains two kinds of modes, and frame pastes and full laminating.It is by the laminating of the edge of touch-screen and display screen that frame pastes, and full laminating is by whole laminating of the upper surface of the lower surface of touch-screen and display screen.
Display screen mainly comprises polaroid, optical filter box, diaphragm, Liquid Crystal Module and thin film transistor (TFT) (TFT; Thin Film Transistor); while by polaroid, optical filter box, diaphragm, Liquid Crystal Module and thin film transistor (TFT), being combined into display screen; there is larger thickness; and while continuing to fit touch-screen on display screen; to further increase its thickness; moreover; many one attaching process; just mean and increased the bad probability of product, greatly increase the production cost of product.
Summary of the invention
Based on this, be necessary to reach more greatly for thickness the problem that cost is higher, a kind of touch display screen that is conducive to reduce the optical filter box of electronic product thickness and production cost and uses this optical filter box is provided.
A kind of optical filter box, comprise substrate, also comprises:
Filter layer, cover the side in described substrate, comprise light shielding part and a plurality of filter unit, described light shielding part is lattice-shaped, comprise cross one another gridline, described light shielding part offers the first groove and the second groove away from a side of substrate, and the space of being cut apart by described gridline forms some grid cells, each described filter unit is contained in a described grid cell accordingly, forms filter unit;
Conductive layer, be embedded at described light shielding part, described conductive layer comprises the first conductive pattern and the second conductive pattern, described the first conductive pattern and the second conductive pattern are in the plane of described filter layer extension direction space, described the first conductive pattern and the second conductive pattern space form induction structure, described the first conductive pattern and described the second conductive pattern include the some conductive grids that consist of conductive thread, adjacent conductive thread intersects to form grid node, the conductive thread of described the first conductive pattern is contained in described the first groove, the conductive thread of described the second conductive pattern is contained in described the second groove, the live width of the conductive thread of described the first conductive pattern and the second conductive pattern is not more than the live width of described gridline.
In embodiment, the thickness of described filter unit is not less than the thickness of described light shielding part therein.
Therein in embodiment, the conductive grid of at least one conductive pattern and described filter unit similar fitgures each other in described the first conductive pattern and described the second conductive pattern, in described the first conductive pattern and described the second conductive pattern, the center line of the conductive thread of at least one conductive pattern overlaps with the center line of described gridline.
Therein in embodiment, described light shielding part is that the photoresist with black dyes forms lattice-shaped at described substrate and forms.
In embodiment, the degree of depth of described the first groove and the second groove is less than the thickness of described light shielding part therein.
In embodiment, adjacent described the first conductive pattern and the interval width between the second conductive pattern are 0.5 μ m～50 μ m therein.
Therein in embodiment, the range content of each described conductive grid of described the first conductive pattern and described the second conductive pattern has been received at least one described filter unit.
A kind of touch display screen, comprise the TFT electrode, Liquid Crystal Module, optical filter box and the polaroid that stack gradually, and described optical filter box is above-described optical filter box.
Above-mentioned optical filter box and using in 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.
The accompanying drawing explanation
The structural representation of the touch display screen that Fig. 1 is an embodiment;
The structural representation of the optical filter box that Fig. 2 is an embodiment;
The structural representation of the optical filter box that Fig. 3 is another embodiment;
Fig. 4 is again the structural representation of the optical filter box of an embodiment;
The structural representation that Fig. 5 is another visual angle of optical filter box shown in Fig. 4;
Interval schematic diagram in the conductive layer that Fig. 6 is an embodiment between the first conductive pattern, between the first conductive pattern and the second conductive pattern;
Interval schematic diagram in the conductive layer that Fig. 7 is another embodiment between the first conductive pattern, between the first conductive pattern and the second conductive pattern;
Fig. 8 is the structural representation that conductive grid holds a filter unit;
Fig. 9～11 hold the structural representation of at least two filter units for conductive grid.
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 the touch display screen that is conducive to reduce the optical filter box of electronic product thickness and production cost and uses this optical filter.This optical filter box can be realized touch operation and Presentation Function, thereby makes touch display screen have the touch Presentation Function.
Referring to Fig. 1, is the touch display screen 100 of an embodiment, comprises 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.In other embodiment, without being set, diaphragm 50 also can.
TFT electrode 20 comprises glass-base 24 and is arranged on the show electrode 22 on glass-base 24.Liquid Crystal Module comprises liquid crystal 32 and is held on the alignment film 34 of liquid crystal 32 both sides.
Be appreciated that when using backlight as polarized light source, as the OLED polarized light source, without lower polaroid 10, only need upper polaroid 60 to get final product.Structure and the function of the lower polaroid 10 of the present embodiment, TFT electrode 20, Liquid Crystal Module 30, public electrode 40, diaphragm 50, upper polaroid 60 can be identical with existing product, do not repeat them here.In other embodiment, also diaphragm 50 can be set.
But but touch display screen 100 has touch control operation and filtering functions, makes display screen have touch display function simultaneously.Display screen can be the LCDs of straight-down negative or side entering type light source.
Refer to Fig. 2 to Fig. 4, expression be three kinds of different embodiments of optical filter box 200.Optical filter box 200 in above-mentioned three kinds of different embodiments includes substrate 210, filter layer 220 and conductive layer 230.The material of substrate 210 can be sillico aluminate glass and calcium soda-lime glass, through the plasma treatment rear surface, has good cohesive force.General, the thickness range of substrate 210 can be 0.1mm～0.5mm.
Above-mentioned optical filter box 200, the first conductive patterns 232 and the second conductive pattern 234 are spaced, form the capacitive sensing structure, make optical filter box 200 can realize touch control operation and filtering functions simultaneously, and, without the design of putting up a bridge, have reduced task difficulty.When above-mentioned optical filter box 200 is applied to 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 save material and assembly cost.When optical filter box 200 is applied to product, generally that substrate 210 is positioned near eyes of user one side, and filter layer 220 is positioned at away from eyes of user one side, so when conductive layer 230 is embedded at filter layer 220 during away from a side of substrate 210, as long as guarantee that the live width of conductive thread 240 is not more than the live width of gridline, just can not affect the light transmission of filter unit because from after the illumination of polaroid 10 directions projections is mapped to conductive grid, by light shielding part 222, sheltered from, and light shielding part 222 has opaqueness.
Refer to Fig. 4 and Fig. 5, in the present embodiment, filter unit 224 comprises chromatic photoresist, is formed with a chromatic photoresist in each grid cell, and chromatic photoresist forms filter unit.Chromatic photoresist is the photoresist formation with coloured dye, can adopt exposure-developing manufacture process.Chromatic photoresist is generally red (red, R) photoresistance, green (green, G) photoresistance or indigo plant (blue, B) photoresistance, for making incident light, is transformed into monochromatic light, realizes filtering functions.Light shielding part is for the photoresist of black dyes, being formed at substrate surface, and light shielding part is lattice-shaped, has opaqueness, can adopt exposure-developing manufacture process.In lattice-shaped, grid cell is square, makes the photoresistance arrangement of filter unit 244 compacter evenly, and can increase the contrast of R, G, B light.Light shielding part 242 can effectively be avoided chromatic photoresist colour contamination each other.
Refer to Fig. 5, in the present embodiment, conductive thread 240 can be straight line, curve or broken line.When conductive thread 240 can be for difformity, reduced production requirement.
The above-mentioned optical filter box with touch controllable function, the first conductive pattern 232 and the second conductive pattern 234 are the impression mode and form, and can make in the following manner particularly:
(1) first carrying out plasma (Plasma) on the surface of substrate 210 processes.To remove the dirty of substrate 210 surfaces, and make the substrate surface ionization, increase follow-up and cohesive force filter layer 220.
(2) photoresist with black dyes in substrate 210 whole of surface coatings, with the impression formboard corresponding with the first conductive pattern 232 and the second conductive pattern 234, impressed, and ultraviolet ray (UV) is solidified, obtain the first groove 2222 mated with the first conductive pattern 232, with the second groove 2224 of the second conductive pattern 234 couplings.
(3) to filled conductive material in the first groove 2222 and the second groove 2224 and solidify.Conductive material can be any one in metal, carbon nano-tube, Graphene, organic conductive macromolecule and ITO, forms by conductive thread 240 and intersects the conductive grid formed.Be preferably metal, as nanometer silver paste.When selecting metal, the energy consumption that can reduce resistance and reduce touch display screen.
(4) adopt exposure-developing technique, form the light shielding part 222 of lattice-shaped.Light shielding part 222 comprises cross one another gridline, and the space of being cut apart by gridline forms grid cell.In grid cell zone gradation, the R/G/B chromatic photoresist is set, forms filter unit 224.
The thickness of filter unit 224 is not less than the thickness of light shielding part 222.Be the thickness that the thickness of filter unit is greater than or equal to gridline.As shown in Figure 3, expression is the thickness that the thickness of filter unit 224 in optical filter box equals light shielding part 222.As shown in Figure 4 and Figure 5, expression is the thickness that the thickness of filter unit 224 in optical filter box is greater than light shielding part 222.When the thickness of filter unit 224 is greater than the thickness of light shielding part 222, the light appeared from filter unit 224, not only can see from front, also can see from the side, thereby can increase the light emission rate of filter unit 224.
In the present embodiment, the thickness of the first conductive pattern 232 be less than the first groove 2222 the degree of depth, the thickness of the second conductive pattern 234 is less than the degree of depth of the second groove 2224.This is because conductive material can produce certain blockage effect when carrying out sintering.The degree of depth of described the first groove 2222 and the second groove 2224 is less than the thickness of described light shielding part 222.Preventing that the first groove 2222 and the second groove 2224 from pressing wears light shielding part 222.
The conductive grid of at least one conductive pattern and filter unit similar fitgures each other in the first conductive pattern 232 and the second conductive pattern 234, in the first conductive pattern 232 and the second conductive pattern 234, the center line of the conductive thread 240 of at least one conductive pattern overlaps with the center line of gridline.Be that conductive thread 240 is over against gridline.Conductive grid is that conductive thread 240 intersects to form, and grid cell is cut apart and formed by gridline, and filter unit is formed at grid cell.So in the present embodiment, the shape that can make conductive grid is identical with the shape of filter unit but vary in size, and conductive grid and filter unit similar fitgures each other guarantee that conductive thread does not exceed gridline simultaneously.In the present embodiment, the center line of the conductive thread 240 of the first conductive pattern 232 and the second conductive pattern 234 all overlaps with the center line of gridline.Further reduce conductive thread 240 and exposed the probability in gridline zone.Certainly, in other embodiment, only the center line of the conductive thread of arbitrary conductive pattern overlaps with the center line of gridline.
In the present embodiment, the conductive thread 240 of the first conductive pattern 232 and the conductive thread 240 of the second conductive pattern 234 are respectively that the conductive material in being filled in the first groove 2222 and the second groove 2224 solidify to form, and conductive material can be any one in metal, carbon nano-tube, Graphene, organic conductive macromolecule and ITO.Therefore, when forming conductive layer 230, can pass through the impressing mould one-shot forming, obtain default pattern, and need not be by graphical etching, thereby simple flow.Especially as use ITO during as conductive material, due to without etching, thus reduced waste of material, so cost-saving.Adopt the first groove 2222 and the second groove 2224 to form conductive layer 230, make conductive material be not limited to traditional ITO, thereby increased the range of choice of conductive material.
In the present embodiment, adjacent conductive pattern setting interval, with mutually insulated.As shown in Figure 6, expression be the width that the interval width between the first conductive pattern 232 is a filter unit, the width that the interval width between the first conductive pattern 232 and the second conductive pattern 234 is a filter unit.Now can lack to be cut off by full line or permutation conductive thread.As shown in Figure 7, expression be that interval width between the first conductive pattern 232 is 0.5 μ m～50 μ m, the interval width between the first conductive pattern 232 and the second conductive pattern 234 is 0.5 μ m～50 μ m.Now can be cut off by the disappearance of the marginal portion by conductive thread 240.
As shown in Figure 8, accommodate a filter unit in each conductive grid of the first conductive pattern 232 and the second conductive pattern 234.Because the conductive thread 240 of the first conductive pattern 232 and the second conductive pattern 234 all is embedded in 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 larger, electric conductivity is better.
As shown in Figures 9 to 11, each conductive grid of the first conductive pattern 232 and the second conductive pattern 234 accommodates at least two filter units.Because the conductive thread 240 of the first conductive pattern 232 and the second conductive pattern 234 all is embedded in gridline, so the filter unit held is integer, quantity is at least two.
Now can be divided into three kinds of situations, take is laterally X-axis, and the direction of vertical transverse is Y-axis.As shown in Figure 9, only, on X-direction, each conductive grid of the first conductive pattern 232 and the second conductive pattern 234 holds at least two filter units.As shown in figure 10, only, on Y direction, each conductive grid of the first conductive pattern 232 and the second conductive pattern 234 holds at least two filter units.As shown in figure 11, on X-axis and Y direction, each conductive grid of the first conductive pattern 232 and the second conductive pattern 234 holds at least two filter units simultaneously.
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.
Claims (9)
1. an optical filter box, comprise substrate, it is characterized in that, also comprises:
Filter layer, cover the side in described substrate, described filter layer comprises light shielding part and a plurality of filter unit, described light shielding part is lattice-shaped, comprise cross one another gridline, described light shielding part offers the first groove and the second groove away from a side of substrate, and the space of being cut apart by described gridline forms some grid cells, each described filter unit is contained in a described grid cell accordingly, forms filter unit;
Conductive layer, be embedded at described light shielding part, described conductive layer comprises the first conductive pattern and the second conductive pattern, described the first conductive pattern and the second conductive pattern are in the plane of described filter layer extension direction space, described the first conductive pattern and the second conductive pattern space form induction structure, described the first conductive pattern and described the second conductive pattern include the conductive grid consisted of conductive thread, adjacent conductive thread intersects to form grid node, the conductive thread of described the first conductive pattern is contained in described the first groove, the conductive thread of described the second conductive pattern is contained in described the second groove, the live width of the conductive thread of described the first conductive pattern and the second conductive pattern is not more than the live width of described gridline.
2. optical filter box according to claim 1, is characterized in that, the thickness of described filter unit is not less than the thickness of described light shielding part.
3. optical filter box according to claim 1, is characterized in that, the live width of the conductive thread of the conductive thread of described the first conductive pattern and the second conductive pattern all is less than the live width of described gridline.
4. optical filter box according to claim 1, it is characterized in that, one of them person's conductive grid and described filter unit similar fitgures each other in described the first conductive pattern and described the second conductive pattern, and the center line of the conductive thread of this conductive pattern overlaps with the center line of described gridline.
5. optical filter box according to claim 1, is characterized in that, described light shielding part is the lattice-shaped structure formed at described substrate with the photoresist of black dyes.
6. optical filter box according to claim 1, is characterized in that, the degree of depth of described the first groove and the second groove is less than the thickness of described light shielding part.
7. optical filter box according to claim 1, is characterized in that, adjacent described the first conductive pattern and the interval width between the second conductive pattern are 0.5 μ m～50 μ m.
8. optical filter box according to claim 1, is characterized in that, the range content of each described conductive grid of described the first conductive pattern and described the second conductive pattern has been received at least one described filter unit.
9. a touch display screen, is characterized in that, comprises the TFT electrode, Liquid Crystal Module, optical filter box and the polaroid that stack gradually, and described optical filter box is optical filter box as claimed in any of claims 1 to 8 in one of claims.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320401110XU CN203338315U (en) | 2013-07-05 | 2013-07-05 | Optical filter assembly and touch displaying screen with optical filter assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320401110XU CN203338315U (en) | 2013-07-05 | 2013-07-05 | Optical filter assembly and touch displaying screen with optical filter assembly |
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| CN203338315U true CN203338315U (en) | 2013-12-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116482887A (en) * | 2023-03-30 | 2023-07-25 | 惠科股份有限公司 | Display device, control circuit and vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116482887A (en) * | 2023-03-30 | 2023-07-25 | 惠科股份有限公司 | Display device, control circuit and vehicle |
| CN116482887B (en) * | 2023-03-30 | 2024-10-01 | 惠科股份有限公司 | Display device, control circuit and vehicle |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170705 Address after: 330000 Jiangxi city of Nanchang province Huangjiahu road Nanchang economic and Technological Development Zone Patentee after: Nanchang OFilm Tech. Co.,Ltd. Address before: North to the East, 330013 in Jiangxi province Nanchang city Nanchang economic and technological development zones clove road Longtan ditch Co-patentee before: Shenzhen OFilm Tech Co.,Ltd. Patentee before: Nanchang Ofilm Display Tech Co.,Ltd. Co-patentee before: Suzhou OFilm Tech. Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20190705 |