CN203376736U - Capacity touch panel - Google Patents
Capacity touch panel Download PDFInfo
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- CN203376736U CN203376736U CN201320486899.3U CN201320486899U CN203376736U CN 203376736 U CN203376736 U CN 203376736U CN 201320486899 U CN201320486899 U CN 201320486899U CN 203376736 U CN203376736 U CN 203376736U
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- basic unit
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Abstract
The utility model discloses a capacity touch panel which comprises a touch base layer and an induction base layer. One face, provided with X rows of ITO film electric conduction electrodes, of the touch base layer is oppositely attached to the back face, provided with Y rows of electric conduction electrodes, of the induction base layer through optical clear adhesive. The capacity touch panel is of a G1M structure, G means glass sensor which serves as a carrier of the touch base layer, and 1M is a layer of PET film sensor, wherein the surface of the layer of PET film sensor is provided with low-wire-resistance and low-sheet-resistance metal wires (also called Metal Mesh). 1M is used as a carrier of the induction base layer and meanwhile has the function of an explosion-proof film after being attached to the G, so that the capacity touch panel is simplified in manufacture procedure and low in cost and is an optimal selection with a middle-large size (especially more than 7 inches).
Description
Technical field
The utility model relates to the touch screen technology field, relate in particular to a kind of in, large-sized capacitive touch screen structure.
Background technology
It is day by day universal as the electronic product of man-machine interface that capacitive touch screen is usingd in the society of today, due to the enjoyment of vision and use be convenient, the consumer also more and more favor in large-sized touch-screen product.From large screen mobile phone, PAD to super this computer of the utmost point, the utilization of the capacitive touch screen of multi-point touch is more and more wider, and size is also increasing.
Capacitive touch screen Capacity Touch Panel (CTP) utilizes the electric current induction of human body to carry out work, is a kind of touch-screen that carrys out the touch sensitive signal by electrode and the combination of people's bulk properties.After touch-screen four limits all plate long and narrow electrode, form a low-voltage AC electric field in electric conductor.When human body (finger) touch screen, due to the human body electric field action, can form a coupling capacitance between finger and conductor layer, the electric current that four limit electrodes produce can flow to contact, and electric current is strong and weak, to the distance of finger to electrode, be directly proportional, be positioned at ratio and power that controller after touch screen just can calculate electric current, accurately calculate the position of touch point.
Current capacitive touch screen mainly comprises: GG (Glass-Glass), G1F (Glass-Film), GFF (Glass-Film-Film), several structures such as PG (PET-Glass), OGS (One Glass Solution), wherein:
G refers to glass cover-plate or glass ITO conducting film sensor;
F refers to that Film sensor is exactly ITO conducting film sensor
G+G refers to glass cover-plate+glass ITO conducting film sensor;
G+f refers to glass ITO conducting film sensor+PET film ITO conducting film sensor;
G+F+F refers to glass cover-plate+PET film ITO conducting film sensor+PET film ITO conducting film sensor;
P+G refers to the ITO conducting film sensor+ glass ITO conducting film sensor of PET film;
OGS refers to a glass solution, is glass cover-plate and ITO conduction sensor integral structure;
The structure of above several touch-screens respectively has characteristics separately, and some hardness is high, wear-resistant, the life-span is long, and cost is low, processing procedure is simple for other; But above no matter the capacitive touch screen of which kind of structure hinders the excessive and low such problem of transmitance at the line that all can have faradic pattern for transparent conductive layer (Parttern) when middle large scale is expanded, because the area of more large-sized capacitive touch screen pattern (Pattern) is larger, thereby cause conducting wire more and more longer, the resistance of circuit is also increasing.
The electric conductivity of ITO is if with the long-pending words that mean of carrier density and mobility, 7x10-5 Ω .cm left and right has been exactly the limit, so the sheet resistance of ITO conducting film and the resistance of the line of Pattern are difficult to accomplish very low, the weak current produced between large size capacitive touch screen and human finger so also fast and accurate is transferred to the IC chip with regard to being difficult to, and also just is difficult to realize untrammeled touch control operation.Ask most simply the transmitance of low-resistance ITO conducting film also can greatly to reduce, also will no longer be suitable for the request for utilization of touch-screen simultaneously.
The utility model content
Technical problem to be solved in the utility model be realize that the line resistance of a kind of faradic pattern for transparent conductive layer Pattern is low, transmitance is higher, the middle large size capacitive touch screen of simple and reasonable, low production cost.
To achieve these goals, the technical solution adopted in the utility model is: a kind of capacitance type touch control screen is characterized in that: comprise touch-control basic unit and induction basic unit;
The base plate glass of described touch-control basic unit is provided with frame, be provided with the identical capable ITO film of the X conductive electrode of number row in described frame, the capable ITO film of the described X of every row conductive electrode one end is connected with metal routing, and described metal routing is concentrated the zone that is aggregated into flexible circuit board along frame;
The substrate of described induction basic unit is provided with number row groove, is provided with the capable conductive electrode of Y in described groove, the capable conductive electrode of described Y by the surrounding cabling along the zone that is aggregated into flexible circuit board in the set of regions of the corresponding covering of frame institute of touch-control basic unit;
Described touch-control basic unit is provided with the capable ITO film of X conductive electrode one side and is provided with the capable conductive electrode of Y with induction basic unit table and simultaneously fits in opposite directions by the optical lens gelatin, and the capable ITO film of described X conductive electrode is mutually vertical with the capable conductive electrode of Y.
The described substrate of responding to basic unit is the PET plastic sheeting, and thickness is 0.75-1.0mm.
The capable conductive electrode of described Y can be become by Nano Silver, Graphene or copper with the surrounding cabling
The live width of the capable conductive electrode of Y is 1-10u, and mutual spacing is 100-300u.
The utility model capacitance type touch control screen is the G1M structure, and G refers to glass sensor; Be as touch-control basic unit carrier, 1M is that one deck is printed on the PET film sensor of metal net shaped (the Metal Mesh) of low line resistance, low square resistance; Be intended for induction basic unit carrier, possess again the function of blow-out disc simultaneously after fitting with G, such capacitive touch screen processing procedure is simplified, with low cost, is the excellent good selection of the capacitive touch screen of middle large scale (especially more than 7 cun).
The accompanying drawing explanation
Below the content of every width accompanying drawing expression in the utility model instructions and the mark in figure are briefly described:
Fig. 1 is touch-control basic unit base plate glass structural representation
Fig. 2 is the base plate glass structural representation that scribbles frame;
Fig. 3 is the base plate glass structural representation that is coated with the IM-ITO conducting film;
Fig. 4 is for making the IM-ITO conducting film base plate glass structural representation of conductive electrode;
Fig. 5 is the base plate glass structural representation that is coated with metal conducting layer;
Fig. 6 is for making metal conducting layer the base plate glass structural representation of metal routing;
Fig. 7 is the surperficial base plate glass structural representation that scribbles protective film;
Fig. 8 is induction basic unit board structure schematic diagram;
Fig. 9 for being provided with the induction basic unit board structure schematic diagram of the capable conductive electrode of Y in the photoresist groove;
Figure 10 is the touch-control basic unit base plate glass structural representation after CNC processing
Figure 11 is the induction basic unit board structure schematic diagram after cross cutting processing;
Figure 12 is the touch-control basic unit after fitting and induction base layer structure schematic diagram;
Figure 13 is the capacitance type touch control screen modular structure schematic diagram after binding FPC;
Embodiment
Below contrast accompanying drawing, by the description to embodiment, embodiment of the present utility model is as effect and principle of work, manufacturing process and the operation using method etc. of the mutual alignment between the shape of each related member, structure, each several part and annexation, each several part, be described in further detail, with help those skilled in the art to utility model of the present utility model conceive, technical scheme has more complete, accurate and deep understanding.
Capacitance type touch control screen consists of touch-control basic unit and the laminating of induction basic unit.
The base plate glass of touch-control basic unit is provided with frame, frame is made by the photoresist of black or white, be provided with the identical capable ITO film of the X conductive electrode of number row in frame, the capable ITO film of X conductive electrode is by the abbreviation of IM-ITO(Index match ITO, claim to disappear again shadow glass) make, the resistive square Standard resistance range is within 20-150 Ω/, and the capable ITO film of every row X conductive electrode one end is connected with metal routing, and all metal routings are concentrated the zone that is aggregated into flexible circuit board along frame; Avoid oxidized in order to protect metal routing; need to do layer protecting film on the surface of metal routing; diaphragm is to utilize lithographic process and the photoresist of the layer of transparent that forms; also can utilize vacuum magnetic-control sputtering or spraying method at the transparent film of the certain thickness silicon dioxide of the surface deposition of whole patterned side, thickness is generally in the scope of 500-1500 dusts.
The carrier substrate of making induction mostly is the PET plastic sheeting of optical grade, thickness is generally all in the 0.75-1.0mm scope, substrate is provided with number row groove, be provided with the capable conductive electrode of Y in each groove, the capable conductive electrode of Y by the surrounding cabling along the frame of touch-control basic unit be aggregated into the zone of flexible circuit board in the corresponding set of regions covered, the capable conductive electrode of Y and surrounding cabling can be made by Nano Silver, Graphene or copper etc., the live width of the capable conductive electrode of Y is generally 1-10u, and mutual spacing is 100-300u.The capable conductive electrode of Y preferably adopts Nano Silver, utilize good transmitance (general >=86%) of low line resistance (sheet resistance of Nano Silver≤20 Ω/ usually) of the Nano Silver of Metal Mesh to be used as responding to the electrode of basic unit, can obtain the flexible clear display of touch-control in large-sized capacitive touch screen.
Touch-control basic unit is provided with the capable ITO film of X conductive electrode surface and fits in opposite directions by the optical lens gelatin with the back side that induction basic unit table is provided with the capable conductive electrode of Y, guarantees that the capable ITO film of X conductive electrode is mutually vertical with the capable conductive electrode of Y.Cross laminating by the induction link base layer of PET material and be bonded in one with the base plate glass of touch-control basic unit, the so better fragmentation of large size capacitive touch screen when routine use or quick-fried in prevention, and then replaced the laminating of blow-out disc, played the effect of holding dual-purpose.
Above-mentioned capacitance type touch control screen is according to following production method:
First produce respectively touch-control basic unit and induction basic unit, will fit after both;
Touch-control basic unit makes according to following steps:
Step 1, will clean (as Fig. 1) as touching base plate glass for basic unit, the thickness range of glass can be from 0.5-2.0MM; General to adopt general glass cleaner and DI deionized water be medium, by Brush type or supersonic wave cleaning machine and dried up;
Step 2, at a side coating last layer black of base plate glass or the photoresist of white, the frame (as Fig. 2) of recycling exposure, the touch-screen that obtains designed size of developing;
Step 3, by the mode of vacuum magnetic-control sputtering, there iing photoresistance frame one side to plate the abbreviation of one deck IM-ITO(Index match ITO, claim to disappear again shadow glass) nesa coating (as Fig. 3), the resistive square Standard resistance range of common IM-ITO film is within 20-150 Ω/mouth;
Step 4, the base plate glass that will plate the IM-ITO nesa coating drop into lithographic process (claiming again the gold-tinted processing procedure) again, complete the Pattern pattern of the IM-ITO conducting film of touch-control basic unit, pattern mostly is the capable ITO film of the X conductive electrode (as Fig. 4) that several shapes are identical;
Step 5, the touch control layer substrate that will carve ITO pattern P attern plate one deck molybdenum aluminium molybdenum rete (MoAlMo) by the mode of vacuum magnetic-control sputtering at this side surface that the Pattern pattern is arranged, and the thickness general control is at 2500-4500 Izod right (as Fig. 5);
Step 6, the glass that will plate molybdenum aluminium molybdenum film drop into the metal routing that lithographic process (claiming again the gold-tinted processing procedure) completes the Pattern pattern of touch-control basic unit again, the ITO conductive electrode pattern that metal routing is capable with X is connected and concentrates the position be aggregated into designed appointment to form for binding the FPC(flexible circuit board along the frame of black or white) zone, sometimes be called again " golden finger " binding zone (as Fig. 6);
The making of step 7, touch-control basic unit is finally in order to protect the oxidation of molybdenum aluminium molybdenum cabling; need to do on the surface of metal routing layer protective layer (as Fig. 7); protective seam is to utilize lithographic process and the photoresist of the layer of transparent that forms also can utilize vacuum magnetic-control sputtering or spraying method in the transparent film of the certain thickness silicon dioxide of the surface deposition of whole patterned side (thickness is generally in the scope of 500-1500 dusts).
Induction basic unit makes according to following steps:
Step 1, utilize lithographic process first to form the capable photoresist groove of Y that several designed shapes are identical on its surface the PET plastic sheeting, and carry out UV and solidify.The specification (as Fig. 8) of the cabling of metal wire Metal Mesh pattern P attern in every groove is also just corresponding time one processing procedure;
Step 2, then carry out conductive layer (conductive can be the materials such as Nano Silver, Graphene, copper, here preferably Nano Silver) coating on the surface that photoetching agent pattern Pattern is arranged;
Step 3, the conductive layer on surface outside the photoresist groove is removed clean, thereby then by sintering process, make electrical-conductive nanometer silver layer in the photoresist groove be solidified, obtained the capable silver-colored line electrode (as Fig. 9) of Y that some shapes are identical.According to designing requirement Y, capable silver-colored line electrode is and disposable the making of cabling of responding to basic unit's surrounding, cabling equally can form another one for binding the FPC(flexible circuit board along being aggregated into designed position in the set of regions of the corresponding covering of frame institute of the black of touch-control basic unit or white) zone, can be called the binding district that responds to basic unit.The live width General Requirements of nano-silver thread is in about 1-10u, and the line-spacing General Requirements between every line is in the 100-300u left and right;
Touch-control basic unit and the laminating of induction basic unit are made according to following steps:
The ITO figured plate glass Sensor of step 1, touch-control basic unit carries out the CNC processing (as Figure 10) of profile according to drawing requirement, and do secondary hardening and process, then cover diaphragm after cleaning, the PET Nano Silver pattern Sensor of the induction Metal Mesh of basic unit is first carried out to overlay film and carry out the physical dimension cross cutting according to drawing requirement shaping (as Figure 11);
Step 2, the ITO of touch-control basic unit patterned surfaces is not had the diaphragm on the surface of nano-silver thread to remove then to carry out the laminating of optical lens gelatin OCA (Optical Clear Adhesive) and eliminate issuable bubble with induction basic unit.
The nano-silver thread electrode that the capable ITO transparency conductive electrode of the X of the touch-control basic unit fit together like this and the Y of induction basic unit are capable just can form an inductance capacitance, and respectively as the pole plate of this inductance capacitance (as Figure 12)
The output of induced signal be after FPC be transferred in the IC chip, so the other end of the common FPC of FPC(that designs has been connected to the IC chip) with the molybdenum aluminium molybdenum line that posts the binding zone of touch-screen matrix, nano-silver thread through the row binding, so just become a complete capacitive touch screen module (as Figure 13).Then the TP module after binding just can be arrived in next processing procedure and fitted into the LCM module with TFT after the line correlation electric performance test.
The above is exemplarily described the utility model by reference to the accompanying drawings; obviously the utility model specific implementation is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technical scheme carry out; or without improving, design of the present utility model and technical scheme are directly applied to other occasion, all within protection domain of the present utility model.
Claims (4)
1. a capacitance type touch control screen, is characterized in that: comprise touch-control basic unit and induction basic unit;
The base plate glass of described touch-control basic unit is provided with frame, be provided with the identical capable ITO film of the X conductive electrode of number row in described frame, the capable ITO film of the described X of every row conductive electrode one end is connected with metal routing, and described metal routing is concentrated the zone that is aggregated into flexible circuit board along frame;
The substrate of described induction basic unit is provided with number row groove, is provided with the capable conductive electrode of Y in described groove, the capable conductive electrode of described Y by the surrounding cabling along the zone that is aggregated into flexible circuit board in the set of regions of the corresponding covering of frame institute of touch-control basic unit;
Described touch-control basic unit is provided with the capable ITO film of X conductive electrode one side and is provided with the capable conductive electrode of Y with induction basic unit table and simultaneously fits in opposite directions by the optical lens gelatin, and the capable ITO film of described X conductive electrode is mutually vertical with the capable conductive electrode of Y.
2. capacitance type touch control screen according to claim 1 is characterized in that: the substrate of described induction basic unit is the PET plastic sheeting, and thickness is 0.75-1.0mm.
3. capacitance type touch control screen according to claim 2, it is characterized in that: the capable conductive electrode of described Y is become by Nano Silver, Graphene or copper with the surrounding cabling
4. capacitance type touch control screen according to claim 3, it is characterized in that: the live width of the capable conductive electrode of Y is 1-10u, mutual spacing is 100-300u.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320486899.3U CN203376736U (en) | 2013-08-09 | 2013-08-09 | Capacity touch panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320486899.3U CN203376736U (en) | 2013-08-09 | 2013-08-09 | Capacity touch panel |
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| Publication Number | Publication Date |
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| CN203376736U true CN203376736U (en) | 2014-01-01 |
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| CN201320486899.3U Expired - Lifetime CN203376736U (en) | 2013-08-09 | 2013-08-09 | Capacity touch panel |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103425375A (en) * | 2013-08-09 | 2013-12-04 | 芜湖长信科技股份有限公司 | Capacitive touch screen and manufacturing method thereof |
| CN104503636A (en) * | 2014-11-26 | 2015-04-08 | 业成光电（深圳）有限公司 | Touch module |
| CN104951155A (en) * | 2014-03-31 | 2015-09-30 | 宸盛光电有限公司 | Capacitive touch control device and manufacturing method thereof |
| CN106354346A (en) * | 2015-07-20 | 2017-01-25 | 王宇 | Manufacturing process of OGS touch screen |
| CN108228016A (en) * | 2018-02-09 | 2018-06-29 | 江西蓝沛泰和新材料有限公司 | A kind of full bonding structure of large size capacitive touch screen |
-
2013
- 2013-08-09 CN CN201320486899.3U patent/CN203376736U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103425375A (en) * | 2013-08-09 | 2013-12-04 | 芜湖长信科技股份有限公司 | Capacitive touch screen and manufacturing method thereof |
| CN104951155A (en) * | 2014-03-31 | 2015-09-30 | 宸盛光电有限公司 | Capacitive touch control device and manufacturing method thereof |
| CN104951155B (en) * | 2014-03-31 | 2019-05-17 | 宸盛光电有限公司 | Capacitive touch device and preparation method thereof |
| CN104503636A (en) * | 2014-11-26 | 2015-04-08 | 业成光电（深圳）有限公司 | Touch module |
| CN106354346A (en) * | 2015-07-20 | 2017-01-25 | 王宇 | Manufacturing process of OGS touch screen |
| CN108228016A (en) * | 2018-02-09 | 2018-06-29 | 江西蓝沛泰和新材料有限公司 | A kind of full bonding structure of large size capacitive touch screen |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140101 |