CN204314860U - A kind of embedded conductive film type touching screen - Google Patents
A kind of embedded conductive film type touching screen Download PDFInfo
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- CN204314860U CN204314860U CN201520000338.7U CN201520000338U CN204314860U CN 204314860 U CN204314860 U CN 204314860U CN 201520000338 U CN201520000338 U CN 201520000338U CN 204314860 U CN204314860 U CN 204314860U
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Abstract
The utility model belongs to touch screen technology field, is specifically related to a kind of embedded conductive film type touching screen.The technical matters solved is to provide a kind of embedded conductive film type touching screen.Provide so a kind of embedded conductive film type touching screen, include glass cover-plate, optical cement layer I, conducting film I, optical cement layer II, conducting film II; Glass cover-plate is provided with groove; Optical cement layer I, conducting film I, optical cement layer II, conducting film II are just in time embedded in groove; Be provided with optical cement layer I below the inside surface of glass cover-plate, the upper surface of conducting film I is mutually bonding with the inside surface of glass cover-plate by optical cement layer I; The below of conducting film I is provided with optical cement layer II, and the upper surface of conducting film II is mutually bonding with the lower surface of conducting film I by optical cement layer II.The embedded conductive film type touching screen provided, glass cover-plate is provided with groove, and conducting film is embedded in groove, and conducting film is temperature distortion not easily, there will not be the problem that conducting film is shifted, and improves the degree of accuracy of location.
Description
Technical field
The utility model belongs to touch screen technology field (G06F 3/044), is specifically related to a kind of embedded conductive film type touching screen.
Background technology
Touch-screen is also called " touch screen ", " contact panel ", it is a kind of induction type liquid crystal indicator receiving the input signals such as contact, when contacting the graphic button on screen, haptic feedback system on screen can drive various hookup mechanism according to the formula of programming in advance, in order to replace mechanical push button panel, and lively visual and sound effects can be produced by liquid crystal display picture.Touch-screen is a kind of up-to-date computer input apparatus, and it is the simplest, convenient current, natural a kind of man-machine interaction mode.It giving the looks that multimedia is brand-new, is extremely attractive brand-new multimedia interactive equipment.Be mainly used in the inquiry of public information, leader's office, Industry Control, military commanding, electronic game, choosing song or selecting dish, multimedia teaching, real estate presell etc.
Capacitance-type touch screen technology utilizes the electric current of human body to respond to carry out work.Capacitive touch screen is one piece of four layers of compound glass screen; the inside surface of glass screen and interlayer respectively scribble one deck ITO, and outermost layer is skim silicon soil glassivation, and interlayer ITO coating is as workplace; four electrodes are drawn at four angles, and internal layer ITO is that screen layer is to ensure good working environment.
When finger touch on the metal layer time, due to human body electric field, user and touch screen surface form a coupling capacitance, and for high-frequency current, electric capacity is direct conductor, so finger siphons away a very little electric current from contact point.This electric current flows out respectively from the electrode the corner of touch-screen, and the electric current flowing through these four electrodes is directly proportional to the distance of finger to corner, and controller, by the accurate Calculation to these four current ratios, draws the position of touch point.
Capacitance plate mainly contains self-capacitance screen and mutual capacitance screen two kinds, more common mutual capacitance screen is example, inside is made up of drive electrode and receiving electrode, drive electrode sends low-voltage high-frequency signal and projects receiving electrode and form stable electric current, when human contact is to capacitance plate, due to human body grounding, finger just forms an equivalent capacity with capacitance plate, and high-frequency signal can flow into ground wire by this equivalent capacity, like this, the quantity of electric charge that receiving end receives reduces, and when pointing the closer to transmitting terminal, electric charge reduces more obvious, the strength of current finally received according to receiving end determines touched point.
First characteristic of touch-screen: transparent, it directly has influence on the visual effect of touch-screen.Transparent have transparent degree problem, infrared technology touch-screen and surface acoustic wave touch screen are all only every the pure glass of one deck, transparent outstanding person at last, this point of other touch-screen will weigh some carefully, " transparent " is in touch-screen industry, just individual concept very general, a lot of touch-screen is the laminated film of multilayer, only inadequate by the more transparent visual effect summarizing it, it at least should comprise four characteristics: transparency, color distortion degree, reflective and sharpness, can also divide again, such as reflective degree comprises the reflective degree of minute surface and the reflective degree of diffraction, the only reflective degree also not arriving CD dish of touch screen surface diffraction, for user, these four tolerance are substantially much of that.
Due to the existence of light transmission and wavelength curve figure, the image seen by touch-screen inevitably and original image create color distortion, static image sensation is also the distortion of color, dynamic multi-media image sensation is not just very comfortable, and the maximum colours degree of distortion in color distortion degree i.e. figure is the smaller the better naturally.Usual said transparency also can only be the average transparency in figure, and it is more high better that yes.
Reflective, mainly refers to because mirror-reflection causes shadow on image after overlap, as the shadow, window, light etc.Reflective is the counter productive of touch-screen, and the smaller the better, it affects the surfing of user, is even beyond recognition image character time serious, and the environment for use of the touch-screen that reflective is strong is restricted, and on-the-spot lamplight setting is also forced to need adjustment.The touch-screen that great majority exist reflective problem all provides another surface treated frosting touch-screen, and be also anti-dazzle type touch-screen, price is slightly higher, anti-dazzle type reflective obviously declines, be applicable to the very sufficient hall of daylighting or exhibition place, but, the light transmission of anti-dazzle type and sharpness also have decline by a relatively large margin thereupon, after some touch-screen installs additional, the handwriting is blurred, and image detail is fuzzy, and whole screen seems unintelligible, see not clear, sharpness that Here it is is too poor.The touch-screen of the problem of sharpness mainly multi-layer film structure, because between thin layer, the refraction of light interreflection causes.In addition anti-dazzle type touch-screen also causes sharpness to decline due to surface frosted, and sharpness is bad, and eyes are easily tired, also has certain injury to eyes, will note differentiating when choosing touch-screen.
Second characteristic of touch-screen: touch-screen is absolute coordinate system, which position be selected just directly to put that position, is the intuitive of one-time-reach-place with the essential distinction of this kind of Relative positioning systems of mouse.The feature of absolute coordinate system be each time the elements of a fix and the last elements of a fix it doesn't matter, touch-screen is a set of independently coordinate positioning physically, the data of each touch transfer the coordinate on screen to by calibration data, like this, no matter when just require this cover coordinate of touch-screen, the output data of same point are stable, if unstable, touch-screen just can not ensure that absolute coordinates is located.Touch-screen location is inaccurate, and this is the problem that people worry touch-screen most.
3rd characteristic of touch-screen: detect and touch and locate, various touch screen technology is all that the respective sensor of dependence carrys out work, and respective positioning principle and sensor used separately determine the reaction velocity of touch-screen, reliability, stability and life-span.
The optimum working temperature of capacitive touch screen is 5 DEG C ~ 35 DEG C.When touch-screen works, not only itself can produce heat, and touch-screen is heated, and impacts the conducting film in touch-screen, and around higher environment temperature also can make touch-screen be heated, and impacts the conducting film in touch-screen.Conducting film all can be caused to occur distortion to any impact of the conducting film in touch-screen, conducting film displacement even occurs, cause touch-screen to be located inaccurate, affect the use of people.
Utility model content
(1) technical matters that will solve
The utility model, in order to overcome existing touch-screen when being heated, locates coarse shortcoming, and the technical problems to be solved in the utility model is to provide a kind of embedded conductive film type touching screen.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides so a kind of embedded conductive film type touching screen, includes glass cover-plate, optical cement layer I, conducting film I, optical cement layer II, conducting film II;
Described glass cover-plate is provided with groove; Described optical cement layer I, described conducting film I, described optical cement layer II, described conducting film II are just in time embedded in described groove; Be embedded in the described optical cement layer I in described groove, described conducting film I, described optical cement layer II, described conducting film II be cascading;
Described optical cement layer I is provided with below the inside surface of described glass cover-plate, the below of described optical cement layer I is provided with described conducting film I, and the upper surface of described conducting film I is mutually bonding with the inside surface of described glass cover-plate by described optical cement layer I;
The below of described conducting film I is provided with described optical cement layer II, the below of described optical cement layer II is provided with described conducting film II, and the upper surface of described conducting film II is mutually bonding with the lower surface of described conducting film I by described optical cement layer II.
Principle of work: capacitance touch screen is one piece of four layers of compound glass screen; the inside surface of glass screen and interlayer are respectively coated with one deck ITO; outermost layer is the silicon soil glassivation only having 0.0015mm thick; interlayer ITO coating is worked face; four electrodes are drawn at four angles, and internal layer ITO is that screen layer is to ensure working environment.When user touches capacitance plate, due to human body electric field, user's finger and workplace form a coupling capacitance, because workplace is connected to high-frequency signal, so the electric current that finger one is very little, this electric current flows out respectively from the electrode four angles of screen, and flow through the electric current of four electrodes in theory and finger proportional to the distance of corner, controller is by calculating position to the precision of four current ratios.
The embedded conductive film type touching screen of one provided by the utility model, glass cover-plate arranges groove, makes embedded being arranged in groove that optical cement layer I, conducting film I, optical cement layer II, conducting film II stack gradually.The inside surface of glass cover-plate is mutually bonding with the upper surface of conducting film I by optical cement layer I, and the lower surface of conducting film I is mutually bonding with the upper surface of conducting film II by optical cement layer II.When touch-screen is heated, be embedded in the conducting film I in groove and conducting film II not easily temperature distortion, the problem that more there will not be conducting film I and conducting film II to be shifted, improves the degree of accuracy of touch-screen location.What optical cement layer I, conducting film I, optical cement layer II, conducting film II stacked gradually is embedded in groove, improves the globality of touch-screen, reliability, stability.
(3) beneficial effect
The embedded conductive film type touching screen of one provided by the utility model, glass cover-plate is provided with groove, conducting film is embedded in groove, when touch-screen is heated, conducting film is temperature distortion not easily, more there will not be the problem that conducting film is shifted, improve the degree of accuracy of location, improve the globality of touch-screen, reliability, stability.
Accompanying drawing explanation
Fig. 1 is stereographic map structural representation of the present utility model.
Fig. 2 is the stereographic map structural representation of glass cover-plate of the present utility model.
Fig. 3 is sectional drawing structural representation of the present utility model.
Being labeled as in accompanying drawing: 1-glass cover-plate, 2-optical cement layer I, 3-conducting film I, 4-optical cement layer II, 5-conducting film II, 6-groove.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
embodiment 1
A kind of embedded conductive film type touching screen, as Figure 1-3, includes glass cover-plate 1, optical cement layer I 2, conducting film I 3, optical cement layer II 4, conducting film II 5; Described glass cover-plate 1 is provided with groove 6; Described optical cement layer I 2, described conducting film I 3, described optical cement layer II 4, described conducting film II 5 are just in time embedded in described groove 6.
Be embedded in the described optical cement layer I 2 in described groove 6, described conducting film I 3, described optical cement layer II 4, described conducting film II 5 be cascading; Described optical cement layer I 2 is provided with below the inside surface of described glass cover-plate 1, the below of described optical cement layer I 2 is provided with described conducting film I 3, and the upper surface of described conducting film I 3 is mutually bonding with the inside surface of described glass cover-plate 1 by described optical cement layer I 2.
The below of described conducting film I 3 is provided with described optical cement layer II 4, the below of described optical cement layer II 4 is provided with described conducting film II 5, and the upper surface of described conducting film II 5 is mutually bonding with the lower surface of described conducting film I 3 by described optical cement layer II 4.
Principle of work: capacitance touch screen is one piece of four layers of compound glass screen; the inside surface of glass screen and interlayer are respectively coated with one deck ITO; outermost layer is the silicon soil glassivation only having 0.0015mm thick; interlayer ITO coating is worked face; four electrodes are drawn at four angles, and internal layer ITO is that screen layer is to ensure working environment.When user touches capacitance plate, due to human body electric field, user's finger and workplace form a coupling capacitance, because workplace is connected to high-frequency signal, so the electric current that finger one is very little, this electric current flows out respectively from the electrode four angles of screen, and flow through the electric current of four electrodes in theory and finger proportional to the distance of corner, controller is by calculating position to the precision of four current ratios.
The embedded conductive film type touching screen of one provided by the utility model, glass cover-plate 1 arranges groove 6, makes embedded being arranged in groove 6 that optical cement layer I 2, conducting film I 3, optical cement layer II 4, conducting film II 5 stack gradually.The inside surface of glass cover-plate 1 is mutually bonding with the upper surface of conducting film I 3 by optical cement layer I 2, and the lower surface of conducting film I 3 is mutually bonding with the upper surface of conducting film II 5 by optical cement layer II 4.When touch-screen is heated, be embedded in the conducting film I 3 in groove 6 and conducting film II 5 not easily temperature distortion, the problem that more there will not be conducting film I 3 and conducting film II 5 to be shifted, improves the degree of accuracy of touch-screen location.What optical cement layer I 2, conducting film I 3, optical cement layer II 4, conducting film II 5 stacked gradually is embedded in groove 6, improves the globality of touch-screen, reliability, stability.
The above embodiment only have expressed preferred implementation of the present utility model, and it describes comparatively concrete and detailed, but therefore can not 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 inventive concept of the premise, can also make some distortion, improvement and substitute, 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 (1)
1. an embedded conductive film type touching screen, is characterized in that, includes glass cover-plate (1), optical cement layer I (2), conducting film I (3), optical cement layer II (4), conducting film II (5); Described glass cover-plate (1) is provided with groove (6);
Described optical cement layer I (2), described conducting film I (3), described optical cement layer II (4), described conducting film II (5) are just in time embedded in described groove (6); Be embedded in the described optical cement layer I (2) in described groove (6), described conducting film I (3), described optical cement layer II (4), described conducting film II (5) be cascading;
Described optical cement layer I (2) is provided with below the inside surface of described glass cover-plate (1), the below of described optical cement layer I (2) is provided with described conducting film I (3), and the upper surface of described conducting film I (3) is mutually bonding with the inside surface of described glass cover-plate (1) by described optical cement layer I (2);
The below of described conducting film I (3) is provided with described optical cement layer II (4), the below of described optical cement layer II (4) is provided with described conducting film II (5), and the upper surface of described conducting film II (5) is mutually bonding with the lower surface of described conducting film I (3) by described optical cement layer II (4).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520000338.7U CN204314860U (en) | 2015-01-03 | 2015-01-03 | A kind of embedded conductive film type touching screen |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520000338.7U CN204314860U (en) | 2015-01-03 | 2015-01-03 | A kind of embedded conductive film type touching screen |
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| CN204314860U true CN204314860U (en) | 2015-05-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108829298A (en) * | 2018-07-05 | 2018-11-16 | 东莞市越丰光电有限公司 | A kind of condenser type black and white plate with touch function |
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2015
- 2015-01-03 CN CN201520000338.7U patent/CN204314860U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108829298A (en) * | 2018-07-05 | 2018-11-16 | 东莞市越丰光电有限公司 | A kind of condenser type black and white plate with touch function |
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Address after: 518103 Guangdong city of Shenzhen province Baoan District Fuyong Street Ocean Development Zone No. 139 Furuilu Building 1, floor 1 B Patentee after: SHENZHEN XINHAO PHOTOELECTRIC TECHNOLOGY Co.,Ltd. Address before: 518103 Guangdong city of Shenzhen province Baoan District Fuyong Street Ocean Development Zone No. 139 Furuilu Building 1, floor 1 B Patentee before: SHENZHEN XINHAO OPTOELECTRONICS TECHNOLOGY Co.,Ltd. |