Network Administration - Although it may be inadequate, but there are two kinds of touch screen but most of all we all know: resistive touch screens and capacitive touch screen. They appear on the smartphone or tablet expensive for specific responses to the lightest touch, multi-point support and often highly responsive (unless you wear gloves). Or, type the response time a little longer, require more force to press hard, but does not support multi-point to work with any device that touches.
If you are a believer in technology especially with the phone lines ever touch then you have to experience these differences. Think about what makes the difference between the types of touch screen, why display iPhone 4 did not feel the gloved finger, or why we can not use the touch pen old for iPad?
All these questions can be answered by two factors: impedance and solution resistance. The difference between these two sensor technologies respond to all questions above. Below is a simple explanation of how the two types of touch screen is.
Touchscreen
Despite becoming more popular but that does not mean that, the touch screen is a new invention. Touchscreen first invented in the 1960s and has undergone many changes and improvements to be touch screen like we see today.
The touch screen is not limited on the smartphone and tablet PCs that are used in all areas, all sides of life, from ATM machines, equipment sales, navigation systems, gaming machines and even handheld touchpad on the laptop. The touch screen is gradually going to life so understanding how they work and help us.
Resistive touch screen
Resistive touch screen is a touch screen the most popular. Except for modern smartphones and tablets, most of us have a touch screen is actually touch the resistor. Resistive touch screen of course depends on the impedance. The pressure you put on the response to cause the screen.
A touch screen is made up of two basic layers are spaced by a space. The two classes have a shell at the junction between two layers in the space, like two pieces of bread on each sandwich pressure. When these two shells touch each other, a voltage generated is transmitted and treated like a tap in that position.
So when your finger, stylus or any other instrument touch resistive touch screen, it creates a pressure in the upper layer and was driven into an adjacent layer gives rise to the signal. Therefore, you can use anything you want to affect the touch screen resistive touch interface to make operation; a gloved finger, a piece of wood, nails long enough to cause pressure up to point touch trigger mechanism and touch can be recognized.
For similar reasons, resistive touch screen requires light pressure to recognize and touch can not always respond as fast as capacitive touch screen. In addition, the layered structure makes the display less sharp, contrast is lower than capacitive touch screen. While most of the resistive touch screen does not allow multi-point as zoom with two fingers, they can record calls from a finger touches the other fingers are touching at a different location on the screen.
Resistive touch screens are also major improvements in recent years and today many mid-range touchscreen smartphone to own a resistive touch screen accuracy is not lower than the high-end devices. Some devices use resistive touch technology as recent Nokia N800, Nokia N97, HTC and Samsung Jet Tattoo. A well-known devices that use resistive touch technology is the Nintendo DS, the first gaming device using this technology.
Capacitive Touch Screen
What is surprising, in fact, the capacitive touch screen also been invented before. The first screen was developed before the resistive touch screen for about 10 years. However, the capacitive touch screen now has the highest accuracy and fast response when touched lightly with your finger.
In contrast to the resistive touch depends on mechanical pressure from a finger or stylus, capacitive touch screen using the electromagnetic properties of the human body. A capacitive touch screens are usually created by an insulator such as glass, covered by a transparent conductive material on the inside. Due to the conductive body should monitor the capacitance can use this electrical conductivity as input. When you touch a capacitive touch screen with your finger, you cause a change in the electromagnetic field of the screen.
This change is recorded, and single touch location is determined by a processor. This is done by a number of different technologies, but all these technologies are based on a change from the single finger caused. This is the reason you can not use a capacitive touch screen while wearing insulated gloves. Similar to the pen.
Due to the capacitive screen is made only from a main class that gets thinner as technology advanced, these screens are not only sensitive and more accurate but also display sharper, like the iPhone 4S . And of course, the capacitive touch screen can also support multi-point, but only when using several fingers at once. If a finger is touching the screen, the screen will not feel the shot correctly engraved.
Conclusion
These are fundamental differences between the two types of touchscreens available now. Most devices are generally considered superior capacitive touch technology as the number one choice due to its high response and allows to display sharper images. The resistive touch technology still has certain advantages.
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