CN103246420B - Monolayer multipoint capacitive touch screen - Google Patents
Monolayer multipoint capacitive touch screen Download PDFInfo
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- CN103246420B CN103246420B CN201310174903.7A CN201310174903A CN103246420B CN 103246420 B CN103246420 B CN 103246420B CN 201310174903 A CN201310174903 A CN 201310174903A CN 103246420 B CN103246420 B CN 103246420B
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- 230000003666 anti-fingerprint Effects 0.000 description 2
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- 238000000429 assembly Methods 0.000 description 2
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- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 description 1
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Abstract
nullThe present invention relates to a kind of monolayer multipoint capacitive touch screen，Including the contact panel being provided with visible area，Multiple independent electrode unit arranged in multiple lines and multiple rows array it is provided with in visible area，Visible area includes first end visible area、The second end visible area and middle part visible area，Electrode unit in first end visible area is connected to first end non-visible area by the first independent cabling，Electrode unit in the visible area of middle part is connected to side non-visible area by independent middle part cabling，Electrode unit in the second end visible area is connected to the second end non-visible area by the second independent cabling，Middle part cabling is connected to first end non-visible area in side non-visible area by the second conductor wire，Second cabling is then connected to first end non-visible area after the second end non-visible area is connected and through side non-visible area by the 3rd conductor wire.The track lengths of middle visible area is shorter, thus decreases the resistance value of whole piece sense channel, it is possible to large scale in realizing supporting.
Description
Technical field
The present invention relates to touch-control field, particularly relate to a kind of monolayer multipoint capacitive touch screen.
Background technology
Common touch panel component generally comprises the electrode of one or more layers transmitting/sensing signal, a piece of support
The substrate of electrode, shield assemblies and there is scratch resistance, anti-dazzle, another plate base of anti-fingerprint/water, antireflection etc..
Manufacture this type of contact panel and need component joint that two panels is manufactured respectively together.If used containing many
The substrate of layer sensing electrode unit add another sheet have shield assemblies and have scratch resistance, anti-dazzle, anti-fingerprint/water,
The manufacture of the two-layer substrate of the substrate of antireflection etc. can make the thickness of contact panel thicker, and comprises many
Layer sensing electrode unit substrate need Layered manufacturing after combine, complex manufacturing, increase substrate and
The binding agent cost of combination between substrate.The most thinning material and the minimizing number of plies, shorten manufacturing process stream
Journey, becomes the research topic of vast touchscreen manufacturer.
Shown in ginseng Fig. 1 and Fig. 2, the visible area of a kind of touch screen supporting monolayer multiple spot is by the electricity of multiple lines and multiple rows
Pole unit 700 array forms, and wherein visible area is divided into two, and part A above is gone between 800 by ITO
Electrode unit 700 is connected to first end non-visible area, and part B below is by ITO 800 electrodes of lead-in wire
Unit 700 is connected to the second end non-visible area, then utilizes high conductivity to lead in the second end non-visible area
Electrolyte is connected to the non-visible area at top through the frame of the dual-side of touch screen after connecting, with leading above
Electrolyte lead-in wire carries out binding again after converging and is connected, to connect with control chip with flexible PCB.
The design of above-mentioned support monolayer multiple spot is owing to needing to use narrow ITO to come at the visible area of touch screen
Go between, but the sheet resistance value being limited by ITO higher (100-500 Ω), it is typically only capable to accomplish 5 cun and 5 cun
Hereinafter, middle coarse scale structures cannot be carried out.
Summary of the invention
Based on this, it is necessary to propose large-sized monolayer multipoint capacitive touch screen during one can be supported.
A kind of monolayer multipoint capacitive touch screen, including contact panel, described contact panel be provided with visible area,
It is positioned at the non-visible area of described visible area surrounding, is provided with multiple independent in multirow in wherein said visible area
The electrode unit that many column arrays are arranged, described visible area includes first end visible area, the second visible area and position
Middle part visible area between first end visible area and the second end visible area, described non-visible area includes
Two side non-visible areas of one end non-visible area, the second end non-visible area and both sides, described first end
Electrode unit in portion's visible area is connected to described first end non-visible area, institute by the first independent cabling
The electrode unit stated in the visible area of middle part is connected to described side non-visible area, institute by independent middle part cabling
State electrode unit in the second end visible area be connected to that described the second end is non-by the second independent cabling can
Vision area, wherein said middle part cabling is connected to described first in described side non-visible area by the second conductor wire
End non-visible area, described second cabling is connected also by the 3rd conductor wire in described the second end non-visible area
It is then connected to described first end non-visible area after described side non-visible area.
Wherein in an embodiment, described middle part visible area is divided into again the Part I and second being arranged side by side
Part, in wherein said Part I in the middle part cabling of electrode unit and described Part II electrode unit
Portion's cabling is respectively connecting to different side non-visible areas.
Wherein in an embodiment, described middle part visible area has multiple, in the visible area of the plurality of middle part
The middle part cabling of electrode unit gap between adjacent two middle part visible areas is passed through and is connected to described side
Non-visible area.
Wherein in an embodiment, described side non-visible area is additionally provided with the sidepiece covering described middle part cabling
Insulating barrier, described sidepiece insulating barrier is provided with sidepiece via, described second conductor wire by described sidepiece via with
Described middle part cabling connects.
Wherein in an embodiment, described the second end non-visible area is additionally provided with and covers described second cabling
Second insulating barrier, described second insulating barrier is provided with the second via, and described 3rd conductor wire is by described second mistake
Hole is connected with described second cabling.
Wherein in an embodiment, described first end non-visible area is additionally provided with and covers described first cabling
First insulating barrier, described first insulating barrier is provided with the first via, is additionally provided with in described first end non-visible area
The first conductor wire being connected with described first cabling by described first via.
Wherein in an embodiment, in described first end visible area, with the first of the electrode unit of a line
Cabling is connected to same the first conductor wire；In the visible area of described middle part, with the middle part of the electrode unit of a line
Cabling is connected to same the second conductor wire；In described the second end visible area, with the electrode unit of a line
Second cabling is connected to same the 3rd conductor wire.
Wherein in an embodiment, described monolayer multipoint capacitive touch screen also include multiple in array arrange
Electrode block, each electrode block and an electrode unit constitute one and repeat electrode unit, described repetition electrode list
Unit is in column-shaped repeated arrangement and is formed with multiple row.
Wherein in an embodiment, described electrode block and described electrode unit shape complementarity, the two is mutually handed over
Pitch and surround shape or half-surrounded in complete.
Wherein in an embodiment, it is divided into upper and lower Liang Geban district with the repetition electrode unit of string, wherein
Electrode block in upper half is joined directly together, and the electrode block in bottom half is the most directly connected to each other, but upper and lower half
It is isolated from each other between the electrode block in district.
Wherein in an embodiment, with the electrode block in the upper half repeating electrode unit of string by electricity
Pole lead-in wire is connected to described first end non-visible area；With the electricity in the bottom half repeating electrode unit of string
Pole block is connected with the 4th conductor wire after being connected to the second end non-visible area by contact conductor, and the described 4th leads
Electric wire is then connected to described first end non-visible area after described side non-visible area.
Above-mentioned monolayer multipoint capacitive touch screen, the middle part cabling of the electrode unit of middle part visible area first causes side
Non-visible area, causes first end non-visible area by conductor wire the most again, and relatively conventional art cabling is from visually
By being then attached to first or the way of the second end non-visible area inside district, middle visible area walk line length
Spend shorter, make the track lengths of whole visible area be reduced, thus decrease the resistance of whole piece sense channel
Value, therefore, it is possible to large scale in realizing supporting.
Accompanying drawing explanation
Fig. 1 is the structural representation of the capacitance touch screen of conventional art；
Fig. 2 is the array schematic diagram of the electrode unit of capacitance touch screen shown in Fig. 1；
Fig. 3 is the schematic diagram of the Wiring structure of the monolayer multipoint capacitive touch screen of an embodiment；
Fig. 4 is the enlarged drawing of circle X section in Fig. 3；
Fig. 5 is the structural representation of the monolayer multipoint capacitive touch screen of an embodiment；
Fig. 6 is the structure chart of the contact panel of the monolayer multipoint capacitive touch screen shown in Fig. 5；
Fig. 7 is the schematic diagram of the line conductive layer of the monolayer multipoint capacitive touch screen shown in Fig. 5；
Fig. 8 is the structure chart of the insulating barrier of the monolayer multipoint capacitive touch screen shown in Fig. 5；
Fig. 9 is the structure chart of the transparent conductive film of the monolayer multipoint capacitive touch screen shown in Fig. 5.
Detailed description of the invention
Refer to Fig. 3 and Fig. 4, it is shown that the Wiring structure of the monolayer multipoint capacitive touch screen of an embodiment
Schematic diagram.This monolayer multipoint capacitive touch screen is provided with visible area, is the non-visible area of touch screen outside visible area,
Namely the frame of touch screen, and non-visible area can be generally divided into first end non-visible area (usual namely top
Portion's non-visible area), the second end non-visible area (i.e. bottom non-visible area) and side non-visible area, this point is
As it is known to those skilled in the art that and repeat no more.As it is shown on figure 3, this monolayer multipoint capacitive touch screen can
Vision area is to be formed by multiple independent electrode unit 110 arrays in multiple lines and multiple rows, plurality of electrode unit
110 each lead to cabling.
As it is shown on figure 3, the visible area of this monolayer multipoint capacitive touch screen be divided into first end visible area 120, in
Portion's visible area 130 and the second end visible area 140.In the present embodiment, first end visible area 120 is in
The top of touch screen visible area, the second end visible area 140 is then positioned at the bottom of touch screen visible area.Need
To illustrate that first end visible area 120 can certainly be in the bottom of touch screen visible area, so-called
First end visible area 120 and the second end visible area 140 are the most comparatively speaking.
First cabling 150 of the electrode unit 110 in first end visible area 120 is from first end visible area
The Base top contact of 120, that is to say the Base top contact from visible area, the electrode unit in middle part visible area 130
The middle part cabling 160 of 110 is drawn from the side of visible area, the electrode unit in the second end visible area 140
Second cabling 170 of 110 is drawn from the top (i.e. the bottom of visible area) of the second end visible area 140.Its
In, the first cabling 150 typically can be connected directly to that the first end above first end visible area 120 is non-can
Vision area, therefore next, it is possible to utilize conductor wire middle part cabling 160 and the second cabling 170 to be connected respectively
And the first end non-visible area guided above first end visible area 120, and then tie up with flexible PCB
Fixed connection, thus connect with control chip.
In the present embodiment, the middle part cabling 160 of the electrode unit 110 of middle part visible area 130 is from visible area
Side is drawn, and in the middle part of relatively conventional art, cabling need to be connected to the way of the second end non-visible area 140, this reality
Execute the Wiring structure of the monolayer multipoint capacitive touch screen of example, the cabling of the mid portion of the visible area of touch screen
Length is reduced, thus the length of cabling in reducing whole visible area, and then decrease whole piece sense channel
Resistance value, thus large scale and realize the purpose of monolayer multipoint configuration in reaching to support.
It is appreciated that in first end visible area 120, middle part visible area 130 and the second end visible area 140
The quantity of electrode unit 110 can be arranged as required to.So-called middle part visible area the most just to occupy
Middle layout, as long as the purpose of the track lengths of the visible area of touch screen can be reached to reduce.
Refer to Fig. 3, middle part visible area 130 is divided into again Part I and the Part II being set up in parallel, its
The middle part cabling 160 of the electrode unit 110 in middle Part I is connected to the side non-visible area in left side, and
The middle part cabling 160 of the electrode unit 110 in Part II is then connected to the side non-visible area on right side.Change
Yan Zhi, in Part I in the middle part cabling 160 of electrode unit 110 and Part II electrode unit 110
The lead direction of portion's cabling 160 is contrary.So, middle part cabling 160 is without in the horizontal through touch screen
Visible area, length is less.Part I and Part II can symmetrically or non-symmetrically be arranged.
Middle part visible area 140 can have multiple, and so middle part cabling 160 can be visual from adjacent two middle parts
Gap between district is passed through and is connected to side non-visible area.Certainly, so-called multiple middle parts visible area 130
Can be understood as a big middle part visible area, middle part cabling 160 is the most as required from two adjacent row electrodes
Pass between unit 110 and be connected to side non-visible area.
Below in conjunction with a concrete application, illustrate the application can support in large-sized monolayer multiple spot capacitive touch
Touch the structure of screen.
Refer to Fig. 5 to Fig. 9, the monolayer multipoint capacitive touch screen of an embodiment, including contact panel 210,
The transparent conductive film 220 being arranged on contact panel 210, the insulation being arranged on transparent conductive film 220
Layer 230 and line conductive layer 240.
Transparent conductive film 220 have multiple independent electrode unit 222 arranged in multiple lines and multiple rows array and
Electrode block 224, electrode unit 222 and electrode block 224 are positioned at the visible area 212 of contact panel 210, constitute
The induction zone of contact panel 210.In the present embodiment, transparent conductive film 220 can use tin indium oxide to plate
Film etching (ITO) prepares, to obtain induction zone.It may be noted that the acquisition of induction zone can also pass through multiple side
Formula obtains, such as: can arrange that on another glass baseplate ito thin film obtains transparent conducting glass, then
Combine with contact panel 210；Can also on another glass baseplate adhesion metal nano thin-film being exposed-
Development-etching obtains conductive pattern, then combines with contact panel 210；Can also is that at another glass baseplate
On be imprinted with mode and obtain conductive pattern, then combine with contact panel 210.
In the present embodiment, transparent conductive film 220 is formed with multiple shape complementarity and the electrode list being isolated from each other
Unit 222 and electrode block 224, electrode unit 222 and electrode block 224 setting intersected with each other, in semi-surrounding or
Entirely surround shape, in the present embodiment, be that each electrode block 224 surrounds an electrode unit 222.Each electrode block
224 constitute one with the electrode unit 222 surrounded repeats electrode unit, and as shown in figs. 5 and 9, is somebody's turn to do
Repeat electrode unit to be column-shaped repeated arrangement and be formed with multiple row.In the present embodiment, electrode unit 222 is big
Cause in X-shaped, the shape of certain electrode unit 222 is not limited to this, as can also be rhombus, rectangle, three
Dihedral or irregular shape.The electrode block 224 repeated in electrode unit being positioned at same string constitutes a row driving
Electrode, then constitutes induction electrode with the electrode unit 222 of a line, and will guide to touching by walking line parallel
It is connected with flexible PCB binding, to connect with control chip after touching the non-visible area of screen.
In above description, for purposes of illustration only, be that the row electrode that electrode block 224 is constituted calls drive electrode,
The row electrode that electrode unit 222 is constituted then is referred to as induction electrode.But it should be recognized that induction electrode
There is no differentiation with drive electrode itself, therefore electrode unit 222 and electrode block 224 are specifically as that type
Electrode use, be depending on the control chip of IC manufacturer.
Refer to Fig. 9 and combine Fig. 5, after transparent conductive film 220 is arranged on contact panel 210, will touch
The visible area 212 of control panel 210 be divided into first end visible area 2122, middle middle part visible area 2124 and
The second end visible area 2126.Visible area 212 surrounding is non-visible area, including first end non-visible area
2142, two side non-visible areas 2144 of both sides and the second end non-visible area 2146.
Refer to Fig. 9 and Fig. 5, the electrode unit 222 being positioned in first end visible area 2122 each via
The first independent cabling 226 is connected to first end non-visible area 2142；And be positioned in the visible area 2124 of middle part
Electrode unit 222 be then connected to side non-visible area 2144 each via independent middle part cabling 227；Position
Electrode unit 222 in the second end visible area 2126 is connected to each via the second independent cabling 228
The second end non-visible area 2146.
Refer to Fig. 5 to Fig. 7 and Fig. 9, the first cabling 226 is then connected directly to first end non-visible area
The first conductor wire 242 in 2142 connects.Middle part cabling 227 passes through after being connected to side non-visible area 2144
Second conductor wire 244 is connected to first end non-visible area 2142, to converge rear with soft with the first cabling 226
Property circuit board binding connect.Second cabling 228 is led by the 3rd after being connected to the second end non-visible area 2146
Electric wire 246 connects, and then the 3rd conductor wire 246 is connected to the first end after being then passed through side non-visible area 2144
Portion's non-visible area 2142.This set connected mode, it is clear that the length of middle part cabling 227 can be reduced, enter
And make the track lengths of whole touch screen visible area 212 less, thus reduce the resistance value of whole piece sense channel,
Thus large scale and realize the purpose of monolayer multipoint configuration in reaching to support.
Concrete connected mode is as follows: in first end visible area 2122, with the electrode unit 222 of a line
First cabling 226 is connected to same the first conductor wire 242；In the visible area 2124 of middle part, with the electricity of a line
The middle part cabling 227 of pole unit 222 is connected to same the second conductor wire 244；The second end visible area 2126
In, it is connected to same the 3rd conductor wire 246 with the second cabling 228 of the electrode unit 222 of a line.Additionally,
Refer to Fig. 9, with the repetition electrode unit of string, be divided into again upper and lower Liang Geban district, the most upper and lower halfth district
In electrode block 224 be joined directly together respectively, but be isolated from each other between the electrode block in upper and lower halfth district.Upper half
In electrode block 224 be to be connected directly to first end non-visible area 2142 by contact conductor 260；Lower half
Electrode block 224 in district then first passes through contact conductor 260 and is connected to the second end non-visible area 2146, then
Being connected by each contact conductor 260 by the 4th conductor wire 248, the 4th conductor wire 248 is then passed through that side is non-can
First end non-visible area 2142 it is then connected to after vision area 2144.So, multiple row repetition electrode unit is formed for
The multiple row drive electrodes can being connected with flexible PCB and then connect with control chip and multiple row sensing electricity
Pole.
Refer to Fig. 5 and Fig. 8, insulating barrier 230 include the first insulating barrier 232, middle part insulating barrier 234,
Two insulating barriers 236.In first insulating barrier 232 is arranged on first end non-visible area 2142 and cover first and walk
Line 226, the first insulating barrier 232 is provided with the first via 2322, and the first conductor wire 242 is by the first via 2322
It is connected with the first cabling 226, the first cabling of the electrode unit 222 of different rows so can be avoided to connect each other
Logical.In middle part insulating barrier 234 is arranged on side non-visible area 2144 and cover middle part cabling 227, middle part is exhausted
Edge layer 234 is provided with middle part via 2342, and the second conductor wire 244 is by middle part via 2342 and middle part cabling
227 connect, and the middle part cabling of the electrode unit 222 of different rows so can be avoided to communicate with each other.Second insulation
In layer 236 is arranged on the second end non-visible area 2146 and cover the second cabling 228, the second insulating barrier 236
Being provided with the second via 2362, the 3rd conductor wire 246 is connected with the second cabling 228 by middle part via 2362,
The second cabling that so can avoid the electrode unit 222 of different rows communicates with each other.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more 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 this area
Those of ordinary skill for, without departing from the inventive concept of the premise, it is also possible to make some deformation and
Improving, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with appended
Claim is as the criterion.
Claims (11)
1. a monolayer multipoint capacitive touch screen, including contact panel, described contact panel be provided with visible area,
It is positioned at the non-visible area of described visible area surrounding, is provided with multiple independent in multirow in wherein said visible area
The electrode unit that many column arrays are arranged, described visible area includes first end visible area, the second end visible area
And the middle part visible area between first end visible area and the second end visible area, described non-visible area bag
Include two side non-visible areas of first end non-visible area, the second end non-visible area and both sides, its feature
Being, the electrode unit in described first end visible area is connected to described first by the first independent cabling
End non-visible area, the electrode unit in the visible area of described middle part is connected to described by independent middle part cabling
Side non-visible area, the electrode unit in described the second end visible area is connected to by the second independent cabling
Described the second end non-visible area, wherein said middle part cabling conducts electricity by second in described side non-visible area
Line is connected to described first end non-visible area, and described second cabling passes through in described the second end non-visible area
3rd conductor wire is then connected to described first end non-visible area after being connected and through described side non-visible area.
Monolayer multipoint capacitive touch screen the most according to claim 1, it is characterised in that described middle part can
Vision area is divided into again the Part I and Part II being arranged side by side, electrode unit in wherein said Part I
It is non-visually that the middle part cabling of middle part cabling and described Part II electrode unit is respectively connecting to different sides
District.
Monolayer multipoint capacitive touch screen the most according to claim 1, it is characterised in that described middle part can
Vision area has multiple, and the middle part cabling of the electrode unit in the visible area of the plurality of middle part can from adjacent two middle parts
Gap between vision area is passed through and is connected to described side non-visible area.
Monolayer multipoint capacitive touch screen the most according to claim 1, it is characterised in that described side is non-
Visible area is additionally provided with the sidepiece insulating barrier covering described middle part cabling, and described sidepiece insulating barrier is provided with sidepiece via,
Described second conductor wire is connected with described middle part cabling by described sidepiece via.
Monolayer multipoint capacitive touch screen the most according to claim 1, it is characterised in that described second end
Portion's non-visible area is additionally provided with the second insulating barrier covering described second cabling, and described second insulating barrier is provided with second
Via, described 3rd conductor wire is connected with described second cabling by described second via.
Monolayer multipoint capacitive touch screen the most according to claim 1, it is characterised in that described first end
Portion's non-visible area is additionally provided with the first insulating barrier covering described first cabling, and described first insulating barrier is provided with first
Via, is additionally provided with in described first end non-visible area and is connected with described first cabling by described first via
The first conductor wire.
Monolayer multipoint capacitive touch screen the most according to claim 6, it is characterised in that described first end
In portion's visible area, it is connected to same the first conductor wire with the first cabling of the electrode unit of a line；In described
In portion's visible area, it is connected to same the second conductor wire with the middle part cabling of the electrode unit of a line；Described
In two end visible areas, it is connected to same the 3rd conductor wire with the second cabling of the electrode unit of a line.
Monolayer multipoint capacitive touch screen the most according to claim 1, it is characterised in that described monolayer is many
Point capacitance touch screen also includes multiple electrode block arranged in array, each electrode block and an electrode unit structure
Becoming one to repeat electrode unit, described repetition electrode unit is column-shaped repeated arrangement and is formed with multiple row.
Monolayer multipoint capacitive touch screen the most according to claim 8, it is characterised in that described electrode block
With described electrode unit shape complementarity, the two intersects and surrounds shape or half-surrounded in complete.
Monolayer multipoint capacitive touch screen the most according to claim 8, it is characterised in that with string
Repeating electrode unit and be divided into upper and lower Liang Geban district, wherein the electrode block in upper half is joined directly together, bottom half
In electrode block the most directly connected to each other, but be isolated from each other between the electrode block in upper and lower halfth district.
11. monolayer multipoint capacitive touch screen according to claim 10, it is characterised in that with string
It is non-visually that electrode block in the upper half of repetition electrode unit is connected to described first end by contact conductor
District；It is connected to the second end by contact conductor with the electrode block in the bottom half repeating electrode unit of string
Being connected with the 4th conductor wire after non-visible area, described 4th conductor wire connects after described side non-visible area again
It is connected to described first end non-visible area.
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| GB2521670A (en) * | 2013-12-30 | 2015-07-01 | Nokia Technologies Oy | Using touch sensors as an electromagnetic shield |
| CN103793120A (en) * | 2014-01-28 | 2014-05-14 | 北京京东方光电科技有限公司 | In cell touch panel and display device |
| CN105630259A (en) * | 2014-12-01 | 2016-06-01 | 昆山国显光电有限公司 | Capacitive touch screen |
| CN105117081B (en) * | 2015-08-14 | 2019-02-19 | 京东方科技集团股份有限公司 | Touch base plate and its manufacturing method, touch display unit |
| CN109976569B (en) * | 2018-07-26 | 2020-12-08 | 京东方科技集团股份有限公司 | Touch panel and preparation method thereof, and touch device |
| CN111475061A (en) * | 2020-04-10 | 2020-07-31 | 意力(广州)电子科技有限公司 | Preparation method of touch screen and touch screen |
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| CN102799301B (en) * | 2011-05-28 | 2015-05-20 | 宸鸿科技(厦门)有限公司 | Electrode structure of touch panel, manufacturing method and touch panel |
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| CN102221945A (en) * | 2010-04-14 | 2011-10-19 | 上海天马微电子有限公司 | Touch screen, liquid crystal display and drive detection method |
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Effective date of registration: 20210220 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: 233 Kangyang Road, Huangdai Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee before: Suzhou OFilm Tech. Co.,Ltd. |