subject: Touch LCD gives you wonderful experience with finger operating [print this page] Touch LCD gives you wonderful experience with finger operating
Touch LCD emerges in 1970's with a fast development nowadays. It is touch-sensitive instead of using a pointing device. You can easily operate with your finger pointing to the options on the screen. Touch LCD has various applications. It can be used in a restaurant, which will make order much easier and faster, while its application also can be found in ATM on the street. The extensive utilization of it shows up the benefits of touch LCD to us.
There are three kinds of technologies of the touch screen: capacitive system, surface acoustic system and resistive system. Capacitive type has 90% light throughout and gives a much clearer picture, which you should input with a conductive object, such as finger. Surface acoustic wave one has no metallic layers on the display surface with a 100% light throughout, which can show the clearer pictures. The resistive type is oldest one and the performance is also not as good as the capacitive type and surface acoustic wave type, containing a piece of common glass over the screen covered by a resistive metallic layer.
Touch LCD is sensitive, so it should also be protected and cleaned carefully. Here are some tips for you to refer to. One of the most important things is that you should protect the touch screen from scratching and pressing. Then, although the industrial touch LCD has excellent performance even under high temperature, you should use the common touch LCD in a proper environment to extend its life span. Besides, to keep the screen clean will also help to improve the sensitivity. Most of electronic products will tend to attract dust particles because of the static electricity, therefore, if you do not have the habit of cleaning the screen constantly, touch LCD may become slow in reaction. The best way of cleaning is to dip a piece of soft cloth in the diluted isopropyl alcohol which is made of water with at most 50% isopropyl alcohol. Next, wipe the screen gently (notice: do not press hard). Other cleaners, especially those that contain ammonia, such as glass cleaners, are forbidden, which will damage your LCD. At the same time, you should also avoiding using paper towels which may also scratch the LCD.
With the continuous applications of touch LCD in computer, watch, ATM, video and music player, medical facilities and many other fields, it gives us more convenience in operating these devices. As a very important kind of technology, it is really worthy of being praised.
