CN103425327A - Touch display screen and optical filter module thereof - Google Patents
Touch display screen and optical filter module thereof Download PDFInfo
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- CN103425327A CN103425327A CN2013101087582A CN201310108758A CN103425327A CN 103425327 A CN103425327 A CN 103425327A CN 2013101087582 A CN2013101087582 A CN 2013101087582A CN 201310108758 A CN201310108758 A CN 201310108758A CN 103425327 A CN103425327 A CN 103425327A
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Abstract
The invention relates to a touch display screen and a light filter module thereof. The light filter module comprises a base material, wherein the base material comprises the first surface and the second surface which are opposite. The first surface is provided with a light shading matrix and colorful light resistors distributed in the light shading matrix, wherein the light shading matrix comprises mutually crossed grid lines, the crossed grid lines form grids, the colorful light resistors form in the grids, and first conductive patterns and second conductive patterns are further arranged on the light shading matrix and arranged at intervals to form a touch sensing structure. The light filter module can achieve touch operation and a light filter function simultaneously and can directly enable the display screen to have a touch function when serving as an indispensable assembly of the display screen and being used for the display screen, assembly of a touch screen on the display screen is not needed, decrease of the thickness of an electronic product is facilitated, and meanwhile materials and the assembly cost are further greatly saved.
Description
Technical field
The present invention relates to a kind of optical filter module and use the touch display screen of this optical filter module.
Background technology
At present, touching display device and given information interaction brand-new looks, is extremely attractive brand-new information interaction equipment.The development that touches the display device 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, touch and show that module mainly pastes combination by touch induction device and display device by full laminating or frame and obtains.Yet the thickness of producing in this way the touch display unit obtained is often larger, and need an independent step by the technique of touch induction device and display device laminating, process is comparatively complicated.
Summary of the invention
Based on this, be necessary to provide touch display screen and the optical filter module thereof that a kind of thickness is less.
A kind of optical filter module, comprise base material, described substrate comprises relative first surface and second surface, described first surface is provided with shading matrix and is distributed in the chromatic photoresist in described shading matrix, described shading matrix comprises cross one another ruling, described ruling intersection shaping grid, described chromatic photoresist is formed in described grid, also be provided with the first conductive pattern and the second conductive pattern on described shading matrix, described the first conductive pattern and described the second conductive pattern space form the touch sensible structure.
Therein in embodiment, described shading matrix is provided with patterned groove away from a side of described substrate, described the first conductive pattern and described the second conductive pattern are embedded in institute's groove, described the first conductive pattern and described the second conductive pattern comprise the continuous conduction grid, and described conductive grid is intersected to form by described conductive thread.
In embodiment, the thickness of described the first conductive pattern and the second conductive pattern is not more than the degree of depth of described groove therein.
In embodiment, the material of described conductive thread is metal, carbon nano-tube, Graphene, organic conductive macromolecule and ITO therein.
Therein in embodiment, the material of described conductive thread is a kind of in silver, copper, aluminium, gold, zinc, iron nickel or the alloy of the two arbitrarily.
In embodiment, the line-spacing of described conductive grid is the integral multiple of the ruling distance of described shading matrix therein.
In embodiment, a side of each described the first conductive pattern is arranged with the second conductive pattern of at least two spaces, the described second conductive pattern mutually insulated of each the first conductive pattern both sides therein.
Therein in embodiment, also comprise conducting bridge, described conducting bridge is located on described the first conductive pattern, and will be positioned at the second conductive pattern electrical connection of the first relative both sides of conductive pattern, between described conducting bridge and described the first conductive pattern, is formed with insulation course.
In embodiment, described conducting bridge is formed by transparent conductive material therein, the two ends of described conducting bridge directly with two the second conductive patterns overlap joints that are positioned at described the first conductive pattern both sides.
A kind of touch display screen, comprise the TFT electrode, alignment film, Liquid Crystal Module, public electrode, diaphragm, optical filter module and the polaroid that stack gradually, and described optical filter module is above-mentioned optical filter module.
Above-mentioned optical filter box can be realized touch control operation and optical filter function simultaneously, 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.
The accompanying drawing explanation
The structural representation of the touch display screen that Fig. 1 is an embodiment;
The structural representation that Fig. 2 is optical filter module shown in Fig. 1;
The structural representation of the conductive thread that Fig. 3 a is an embodiment;
The structural representation of the conductive thread that Fig. 3 b is another embodiment;
The structural representation of the conductive thread that Fig. 4 a is an embodiment;
The structural representation of the conductive thread that Fig. 4 b is another embodiment;
The structural representation of the conductive thread that Fig. 4 c is another embodiment;
The structural representation of the conductive layer that Fig. 5 is an embodiment;
The structural representation of the conductive layer that Fig. 6 is another embodiment;
The structural representation of the optical filter module that Fig. 7 is an embodiment;
The structural representation of the optical filter module that Fig. 8 is another embodiment.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.A lot of details have been set forth in the following description so that fully understand the present invention.But the present invention can implement much to be different from alternate manner described here, those skilled in the art can be in the situation that do similar improvement without prejudice to intension of the present invention, so the present invention 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 invention with scientific terminology.The term used in instructions of the present invention herein, just in order to describe the purpose of specific embodiment, is not intended to be restriction the present invention.Term as used herein " and/or " comprise one or more relevant Listed Items arbitrarily with all combinations.
The present invention proposes a kind of optical filter module and uses the touch display screen of this optical filter module.This optical filter module can realize 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 40, public electrode 50, diaphragm 60, optical filter module 200 and the upper polaroid 70 that stack gradually.
Structure and the function of the lower polaroid 10 of the present embodiment, TFT electrode 20, Liquid Crystal Module 40, public electrode 50, diaphragm 60 and upper polaroid 70 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 have upper polaroid 70 to get final product.
Following emphasis is described optical filter module 200.
Refer to Fig. 2, optical filter module 200 comprises base material 22, shading matrix (Black Matrix) 24, chromatic photoresist 26 and conductive layer 28.
Because conductive layer 28 is embedded in shading matrix 24 side far away apart from substrate 22, when the illumination that therefore direction projects into from optical filter is mapped to conductive layer 28, even conductive layer 28 is opaque, also can be sheltered from by shading matrix 24, therefore the user can not see conductive layer 28 in use, therefore can not affect the user and experience.
Refer to Fig. 3 a and Fig. 3 b, conductive layer 28 comprises the continuous conduction grid, and conductive grid is intersected to form by conductive thread 27, and the Basic Net ruling of conductive thread 27 can be regular polygon or random grid figure.Conductive thread 27 is the grid groove structures that obtain required pattern by impressing on shading matrix 24, then makes to filled conductive material in groove structure.The conductive material of filling can be metal, carbon nano-tube, and Graphene, organic conductive macromolecule and ITO, be preferably a kind of in silver, copper, aluminium, gold, zinc, iron nickel or the alloy of the two arbitrarily.
Preferably, conductive thread 27 is all on complete embedding shading matrixs 24 in embossed grooves, and can not drop on the zone of chromatic photoresist 26 because of part, and causes being removed when manufacturing chromatic photoresist 26 and produce the risk of broken string.
The basic grid shape of conductive thread 27 can become similar fitgures with chromatic photoresist 26 shapes, can be for example rectangle as shown in Figure 3 a, can be also the bent limit shape as shown in Fig. 3 b.The intersection point of conductive thread 27 grids overlaps with the intersection point of shading matrix 24.
Preferably, the mesh lines of conductive thread 27 is apart from being the same axially integral multiple of adjacent two distance between center lines of shading matrix 24.Here can be divided into three kinds of situations: 1. only for example, at first axial (transverse axis) upper, the conductive thread mesh lines is apart from being the same axially integral multiple of adjacent two distance between center lines of shading matrix 24, as shown in Fig. 4 a; 2. only for example, at second axial (longitudinal axis) upper, the conductive thread mesh lines is apart from being the same axially integral multiple of adjacent two distance between center lines of shading matrix 24, as shown in Figure 4 b; 3. first axially and second axially on, the conductive thread mesh lines is apart from being all the same axially integral multiples of adjacent two distance between center lines of shading matrix 24, as shown in Fig. 4 c.
When conductive layer 28 is the individual layer multipoint configuration, its manufacturing process can be as follows:
(1) at first carry out the Plasma processing on glass baseplate, remove the dirty of glass surface, and make surface ion, increase cohesive force follow-up and chromatic photoresist and BM;
(2) on the glass baseplate surface, whole coating BM(BM is black UV glue), use with the corresponding impressing mould of required conductive pattern and impressed, and UV is curing, obtain the grid groove of required pattern;
(3) to filled conductive material in the grid groove and solidify;
(4) adopt exposure-developing technique, the BM in chromatic photoresist zone is removed, in corresponding region, the R/G/B chromatic photoresist is plated/coats in gradation.
Refer to Fig. 6, in another embodiment, the structure of conductive layer 28 can be also the conduction rack bridge-type.Conductive layer 28 also comprises conducting bridge 283, conducting bridge 283 is located on the first conductive pattern 282, and be electrically connected to the second conductive pattern 284 that is positioned at the first conductive pattern 282 relative both sides, between conducting bridge 283 and the first conductive pattern 282, be formed with insulation course 285.
Refer to Fig. 7, conducting bridge 283 can first adopt inkjet printing or screen printing technique to cover layer of transparent insulation course 285 by the position of putting up a bridge at needs, then bridging connects the second conductive pattern 284 that is positioned at the first conductive pattern 282 relative both sides as conduction rack to cover the layer of transparent electrically conductive ink on insulation course.
When conductive layer 28 is the bridging structure, and while adopting electrically conducting transparent printing ink as conducting bridge 283, its manufacturing process can be as follows:
(1) at first carry out the Plasma processing on glass baseplate, remove the dirty of glass surface, and make surface ion, increase cohesive force follow-up and chromatic photoresist and BM;
(2) on the glass baseplate surface, whole coating BM(BM is black UV glue), use with the corresponding impressing mould of required conductive pattern and impressed, and UV is curing, obtain the grid groove of required pattern;
(3) to filled conductive material in the grid groove and solidify;
(4) adopt exposure-developing technique, the BM in chromatic photoresist zone is removed, in corresponding region, the R/G/B chromatic photoresist is plated/coats in gradation;
(5) adopt inkjet printing or screen printing technique to cover the layer of transparent insulation course in needs bridging zone;
(6) adopt inkjet printing or screen printing technique to cover the layer of transparent electrically conductive ink as bridging on above-mentioned transparent insulating layer, make the conductive pattern at bridge two ends realize being electrically connected to.
Conducting bridge 283 can also form by impression.Refer to Fig. 8, grid conducting bridge that can disposable impression arch, the mode that also can obtain consent with exposure imaging first forms the consent of conducting block 286, then impression forms the lattice portion groove, finally removes consent and once insert conductive material to form lattice portion 287.Lattice portion 287 is formed and is electrically conducted by the conductive thread cross connection.The mesh shape of lattice portion 287 can be square as shown in Figure 8, rhombus, regular hexagon, irregular polygon etc.
Above-mentioned conducting block 286 is connected with lattice portion 287, and penetrates insulation course 285, makes the lattice portion 287 of conducting bridge 283 and the second corresponding conductive pattern 284 be connected.At least two conductive threads in corresponding the second conductive pattern of conducting block 286 cross-over connections, to guarantee electrically the validity of overlap joint (if a broken string wherein, but another still conducting), the mesh lines of putting up a bridge here is thinner, meet visually-clear, live width is 1～10 μ m, line-spacing 10～100 μ m.
When conductive pattern is the bridging structure, and while adopting disposable method for stamping to obtain the conduction rack bridge construction, its manufacturing process is as follows:
(1) at first carry out the Plasma processing on glass baseplate, remove the dirty of glass surface, and make surface ion, increase cohesive force follow-up and chromatic photoresist and BM;
(2) on the glass baseplate surface, whole coating BM(BM is black UV glue), use with the corresponding impressing mould of required conductive pattern and impressed, and UV is curing, obtain the grid groove of required pattern;
(3) to filled conductive material in the grid groove and solidify;
(4) adopt exposure-developing technique, the BM in chromatic photoresist zone is removed, in corresponding region, the R/G/B chromatic photoresist is plated/coats in gradation, obtains complex;
(5) be coated with again layer of transparent UV glue as insulation course on the surface of complex obtained above, impress and be cured with the impression block with required bridging structural correspondence, here need to carry out the contraposition processing, make the protuberance pressure at the mould place of corresponding bridging two ends conducting block penetrate bright UV glue and be connected with the second corresponding conductive pattern;
(6) to filled conductive material in the grid groove of conducting bridge and conducting block groove and solidify.
When conductive pattern is the bridging structure, and the mode that adopts exposure imaging to obtain consent first forms the consent of conducting block, then impression forms the lattice portion groove, finally removes consent and once insert conductive material to form while obtaining the conduction rack bridge construction, and its manufacturing process is as follows:
(1) at first carry out the Plasma processing on glass baseplate, remove the dirty of glass surface, and make surface ion, increase cohesive force follow-up and chromatic photoresist and BM;
(2) on the glass baseplate surface, whole coating BM(BM is black UV glue), use with the corresponding impressing mould of required conductive pattern and impressed, and UV is curing, obtain the grid groove of required pattern;
(3) to filled conductive material in the grid groove and solidify;
(4) adopt exposure-developing technique, the BM in chromatic photoresist zone is removed, in corresponding region, the R/G/B chromatic photoresist is plated/coats in gradation, obtains complex;
(5) at the surface-coated photoresist layer of complex obtained above, the recycling mask plate is exposed to photoresist layer, and, by developing, in two conducting block corresponding positions of follow-up conducting bridge, obtains respectively the photoresist mask layer;
(6) surface to the described complex with the photoresist mask layer is coated with layer of transparent UV glue again as insulation course, impress and be cured with the impression block with required bridging structural correspondence, here need to carry out the contraposition processing, make the grid two ends of conducting bridge be connected with the photoresist mask layer;
(7) described photoresist mask layer is removed, to form the conducting block groove that is communicated with the second corresponding conductive pattern and conduction bridging surface mesh ruling;
(8), to filled conductive material in described bridging grid wire grooves and described conducting block groove and solidify, the conduction that obtains being communicated with corresponding adjacent two conductive units of the second conductive pattern is put up a bridge.
The present invention has following advantage:
(1) optical filter box in the present invention can be realized touch control operation and optical filter function simultaneously, 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.
(2) the present invention adopts the impression mode to obtain the conductive grid pattern on BM, and the conductive mesh ruling is embedded in a BM side far away apart from glass of color filter, therefore from the illumination that projects into of optical filter direction while being mapped to conductive grid, even conductive grid is opaque, also can be sheltered from by BM, therefore the user can not see conductive grid in use, therefore can not affect the user and experience.
(3) material that conductive pattern is selected only expands all suitable conductive materials to transparent material by tradition, when conductive pattern is selected metal material, can reduce greatly resistance to reduce the energy consumption of touch-screen.
(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 one step forming, 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 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.
(5) conductive pattern adopts the metal grill structure, is convenient to blade coating technique, and produces agglomeration effect while preventing sintering and cause wire fracture.
(6) because of conductive material, be embedded in impression glue, so can avoid the wire scratch of conductive layer and bridging.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to 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, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. an optical filter module, comprise base material, described substrate comprises relative first surface and second surface, described first surface is provided with shading matrix and is distributed in the chromatic photoresist in described shading matrix, described shading matrix comprises cross one another ruling, described ruling intersection shaping grid, described chromatic photoresist is formed in described grid, it is characterized in that, also be provided with the first conductive pattern and the second conductive pattern on described shading matrix, described the first conductive pattern and described the second conductive pattern space form the touch sensible structure.
2. optical filter module according to claim 1, it is characterized in that, described shading matrix is provided with patterned groove away from a side of described substrate, described the first conductive pattern and described the second conductive pattern are embedded in institute's groove, described the first conductive pattern and described the second conductive pattern comprise the continuous conduction grid, and described conductive grid is intersected to form by described conductive thread.
3. optical filter module according to claim 2, is characterized in that, the thickness of described the first conductive pattern and the second conductive pattern is not more than the degree of depth of described groove.
4. optical filter module according to claim 2, is characterized in that, the material of described conductive thread is metal, carbon nano-tube, Graphene, organic conductive macromolecule and ITO.
5. optical filter module according to claim 4, is characterized in that, the material of described conductive thread is a kind of in silver, copper, aluminium, gold, zinc, iron nickel or the alloy of the two arbitrarily.
6. optical filter module according to claim 2, is characterized in that, the line-spacing of described conductive grid is the integral multiple of the ruling distance of described shading matrix.
7. optical filter module according to claim 1 and 2, is characterized in that, a side of each described the first conductive pattern is arranged with the second conductive pattern of at least two spaces, the described second conductive pattern mutually insulated of each the first conductive pattern both sides.
8. optical filter module according to claim 1 and 2, it is characterized in that, also comprise conducting bridge, described conducting bridge is located on described the first conductive pattern, and second conductive pattern that will be positioned at the first relative both sides of conductive pattern is electrically connected to, and between described conducting bridge and described the first conductive pattern, is formed with insulation course.
9. optical filter module according to claim 8, is characterized in that, described conducting bridge is formed by transparent conductive material, and the two ends of described conducting bridge directly overlap with two the second conductive patterns that are positioned at described the first conductive pattern both sides.
10. a touch display screen, comprise the TFT electrode, Liquid Crystal Module, public electrode, optical filter module and the polaroid that stack gradually, it is characterized in that, described optical filter module is the described optical filter module of any one in claim 1～9.
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| CN103345335A (en) * | 2013-07-05 | 2013-10-09 | 南昌欧菲光显示技术有限公司 | Optical filter box, optical filter box manufacturing method and touch display screen |
| CN103345332A (en) * | 2013-07-05 | 2013-10-09 | 南昌欧菲光显示技术有限公司 | Optical filter box and touch display screen using optical filter box |
| CN103399666A (en) * | 2013-05-09 | 2013-11-20 | 南昌欧菲光显示技术有限公司 | Optical filter assembly and touch display assembly |
| CN104317448A (en) * | 2014-10-17 | 2015-01-28 | 昆山龙腾光电有限公司 | Touch display device and production method thereof |
| CN104635372A (en) * | 2015-02-06 | 2015-05-20 | 京东方科技集团股份有限公司 | Color film substrate and display device |
| CN106484205A (en) * | 2016-12-27 | 2017-03-08 | 无锡格菲电子薄膜科技有限公司 | A kind of mutual capacitance touchscreens functional sheet and preparation method thereof |
| CN106648234A (en) * | 2016-12-20 | 2017-05-10 | 深圳市华星光电技术有限公司 | Touch panel and display device |
| WO2021227739A1 (en) * | 2020-05-11 | 2021-11-18 | 京东方科技集团股份有限公司 | Touch panel and manufacturing method therefore, and display panel |
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| WO2021227739A1 (en) * | 2020-05-11 | 2021-11-18 | 京东方科技集团股份有限公司 | Touch panel and manufacturing method therefore, and display panel |
| US11755162B2 (en) | 2020-05-11 | 2023-09-12 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Touch panel, manufacturing method thereof and display panel |
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Effective date of registration: 20170630 Address after: 330000 Jiangxi city of Nanchang Province Economic and Technological Development Zone HUANGJIAHU Road Applicant 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 Applicant before: Nanchang Ofilm Display Tech Co.,Ltd. |
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