Preface: The touch-control panel is employed by the handheld running gear to light the upsurge, in fact, this technology as early as many years ago, can already be used in a lot of public display uses, such as the airport, station or store When offering the display unit of a service of guide, but change the device until personal use, the ones that just found it are ingenious
Contact control screen faceplate, at COMPUTEX meeting-place, can find a lot of touch-control panel manufacturers and exhibit, the size is from 3 of the running gears, to 42 of the large-scale display units! Besides basic style, also exhibit new technical application, touch-control panel, glass on glass substantially as possessing the antireflection, defending the glare Wait for technology.
Basic principle and classification of the touch-control panel
The touch-control panel can be divided into the resistance type, capacitive, infrared rays type, supersound to be wave according to the mode of action of reaction Wait for 4 big classes.
Resistance type,its principle is from at /lay by 2 group indium tin oxide (ITO) It is conductive membrane stacked,at if you can't utilize, make pressure /communicate, be lasted voltage changed bottom electrode control device and then, calculate and is exposed to the dot location, finish the detect of contact or touching activated response of advanced, include conductive membrane, electroconductive glass, sizing material, ink and soft printing circuit board on the material used When.
Participate in AMT that COMPUTEX exhibits, show the intersection of glass on glass touch screen and technology, the technological characteristic to make upper strata of the original document that the conductive membrane, lower floor are the vitreous technology of the electric conduction, it is all glass to develop into 2 layers. Thus, the whole module will become more attractive and more durable, but vitreous technology of 2 layers lies in a bit more difficult, if the control of conductive membrane is replaced with the glass, by contrast, it is more difficult to maintain the same touching activated response rate, result in adopting glass on glass touch screen technical resistance type touching activated limited size, the usually unable faceplate is usually unable to enlarge. AMT products lock the market automotive, only put out the goods about 7 at present.
Illustrate: It is quite general that the resistance type touch-control panel is made, the picture is analog touch windows technology that glimmering luxuriant optics cooperates with Japan's technology, the characteristic lies in exactly combining into a level faceplate, do not need coating separately for the touching activated device. (the Xu 's engraves and takes the photograph)
Illustrate: Glass on glass touch screen technology, the leading market automotive. (the Xu 's engraves and takes the photograph)
Capacitive to on a layer of oxidized metal at the crystal is plated, offer the voltage by 4 corners of glass, and form the even electric field on the crystal and utilize human finger and electric field static to reflect changes produced, to measure the touching activated coordinate position.
Because capacitive must overcome the static and noise produced by itself of screen, circuit and structural design are more difficult, no matter cost and technical progress, than the resistance type touching activated technical development, seem more comparatively slowly, is often used in the market of touch-control panel of more than 10 before this, but because iPhone uses capacitive touching activated technology, capacitive applied to the small-scale running gear, also turn into a new craze.
At the meeting-place, so long as a manufacturer which makes the resistance type touch-control panel, will exhibit capacitive touching activated correlation technique synchronously, newer technology is still touching activated for multi-point, but no matter capacitive or resistance type, integration resists the reflected faceplate, let when there is strong light-struck in the open air, the picture can still be clear to inspect, not influence operating, it is a new attempt.
Illustrate: By way of metallic-membrane plating or pad pasting, the products defending the glare, reflecting light, usually the color and luster is relatively black. (the Xu 's engraves and takes the photograph)
Infrared rays and wave touching activated technical action principle of the supersound are similar, lie in assemblies that detects are different in the difference place, their principles are all in X-axis of the screen and the Y-axis (usually choose on the screen) ,Set up the infrared rays or supersonic wave emission source, and in the other side (usually choose the bottom flange of the screen) Install and receive the source, it is touching activated to receive in the screen, will interfere with the infrared rays or supersonic wave continuously, gauge it the coordinate number value of interfering with the position at the same time, and then obtain the touching activated location data, limit to the intersection of sensor and size, at present more with 20 screen of the above as the main fact the technology.
Illustrate: The infrared rays is similar to wave touching activated technology of the sound, have the string, control chip and emitting-receiving module reflected to form. (the Xu 's engraves and takes the photograph)
Illustrate: The infrared rays and wave touching activated technology of the sound are used in the jumbo size screen commonly, the picture is 60 contact type rear projection screens. (the Xu 's engraves and takes the photograph)
The touch-control panel is employed with added value
Taiwan touch-control panel make backward in technique U.S.A., the intersection of Japan and 2 country, until 1999, owners put into the touch-control panel and make successively, but material supplies and production technology, come from more Japanese, the material is made to still need to be dependent on Japan with technology, still have influence on the lowering production cost of Chinese manufacturer.
The application area of touch-control panel is quite extensive, comprising: (1)Portable consumption electron and communication products: Such as mobile phone, PDA, notebook computer, digital camera, infromation household appliances; (2)Public information and commercial use: Such as the guide services of Teller-Stella, marketing system, airport, station or store; (3)Industrial use: Such as the machine control of the factory / operating system, central monitoring system, work station operating system
On the field of exhibition, utilize ' the detector array type electronic white boards ' that touching activated technology forms, it is another characteristic exhibit, see through touching activated technology, the teacher not merely usable touch control pen writes the content on the white board, can reach and give lessons, interdynamic with data storage with the computer system installation linking up Wait for the function, raise teaching efficiency and quality.
Illustrate: The intersection of detector array type electronic white boards and the intersection of integration and computer, projection and touching activated technology, pluralism let teaching employ. (the Xu 's engraves and takes the photograph)
Under the circumstances that the electronic industry grows up and drives, the demand of the touch-control panel will increase, add the lasting heating of market of continent, attract numerous new factories to invest the industry of the touch-control panel in succession, resistance type touch-control panel belong to ripe product, each the intersection of faceplate and characteristic that owner produce close quite, how to develop out the unique goods under identical technology, it will be technological decisive points of every family of the future.
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