Display
In this group, we can choose the parameters: size, resolution, touch, light, kind of.
Size:
Screen size is the size of the display of our device. Is given in inches (1 inch is approx. 2.54 cm). The higher the diagonal of this, of course, a larger display device. Available in tablets and data collectors are different screen size.

Resolution:
This parameter specifies the number of pixels in the image displayed on the screen in the current display mode, the image is made of pixels. Resolution is expressed as the number of pixels in the horizontal and vertical. Resolution level consists of a vertical line, while the horizontal lines vertically.

Standard on-screen resolution
Touch type:
Screen Resistance / Resistance
Touch-sensitive surface is made of two plastic plates. On the surface of the plate is a thin and scratch-resistant plastic. Is also coated with a thin layer of conductive material (tin oxide and indium oxide) placed on the bottom of "fast". At the upper long (i.e., below the conductive material), a second plastic plate. Both plates have no contact with each other until the user of the device does not press the screen with your finger or stylus. Contact occurs between spaced slightly screens. As a result of contact created a short circuit that by measuring the vertical and horizontal resistance is converted to data indicating the CPU contact area.

Screen resistive / resistive resistive screen provides good visibility, but that falls quite heavily in the sun. This type of screen, as opposed to capacitive screen, allows the use of ink (useful herein stylus). About multitouchu we can only dream of.
Capacitive screen
The capacitive touch generally consists of a fast-coated glass insulator (similar to that used in screens resistance). Touching the surface of the plate with a finger or other thing, conductive causes disruption in the flow of current. Next, place your finger from the screen interface is measured from the four corners of the screen.

Capacitive screen also provides decent visibility in the sun. We can only handle it with your finger or conductive materials. Is inconvenient in the winter, because we have to take off the gloves to be able to do anything on the phone (you can use special gloves). Some phones at subzero temperatures can go crazy and the screens do not read properly our gestures. This type of touch panel provides us with an unusual facility, which is to support multitouch technology.
Brightness:
The light emitted perpendicular to the surface of the glowing (and reflective). In this way, we describe the amount of light that is emitted from a particular area and the incident at a specific angle. This value is given in candelas per square meter (cd / m2).

Type:
IPS
Matrices of this type are characterized by a very wide viewing angles horizontally and vertically, have uniform illumination and better color fidelity mapped. In conjunction with control systems that operate on a 12-bit color patterns and enable 16-bit color processing, and further supported by the DUE function, are the ideal solution for even the most demanding users, using them for professional use.

4-WIRE RESISTIVE SCREENS
The 4-wire Resistive Touch Screen is the preferred solution for low-cost applications. It consists of a conductive bottom layer of either glass or film and a conductive top film layer, separated by extremely small, transparent spacer dots. A voltage is applied across the conductive surface. When pressure from a touch is applied to the top layer, it is deflected and makes contact with the bottom layer resulting in a voltage drop. This change is detected by the controller. By alternating the voltage signal between the top layer and the bottom layer, the X and Y coordinates of the user’s touch are computed.

5-WIRE RESISTIVE SCREENS
The 5-wire Resistive Touch Screen is the preferred solution for applications requiring durability and reliability. Similar to the 4-wire technology, the 5-wire touch screen also consists of a conductive glass bottom layer and conductive top film layer. The fundamental difference between the two is, in the 5-wire construction, all the electrodes are on the bottom layer and the top layer acts as a voltage-measuring probe. With this structure, the touch screen may still work properly even when the top layer is slightly scratched or damaged. The result is an accurate, durable and reliable touch screen that offers a higher touch life.

IR Technology
The oldest and hence tested and having the lowest failure rate, technology is infrared IR. Touch panels, operating on the infrared emitters have light-sensitive two rows perpendicular to each other on the walls of the screen. This solution does not require a special screen coating, which could distort the displayed content. The disadvantages of this type of panels are: poor resistance to infrared light (not suitable for outdoor use, the sunlight), and the work in a narrow temperature range (not resistant to high and low temperatures; unexpected change in temperature can damage the panel).

IR technology is also not resistant to accidental touch or covering the frame emitting infrared radiation. If the monitor is outdoor, for example, it is exposed to an accidental contact with a falling leaf, which can be interpreted by IR as a touch. It is also an advantage of the technology - it has a high sensitivity to touch. Also, it recognizes the touch in a glove. Solutions with infrared touch-sensing technology can be used in very large screens. In addition, this technology is cheap.
Vandal-proof SAW Touch Screen
This type of touchscreen uses tempered glass, which provides excellent impact performance and strength several times that of ordinary glass. Even if a touchscreen is broken, the fragments are safe with no sharp edges. Special anti-vandalism design for applications in industry, nobody-on-duty and public, with excellent performance for safety and anti-vandalism.

SAW Acoustic Technology
The principle of SAW acoustic technology is similar to IR technology. Acoustic wave emitters that cover the monitor are necessary. When the screen is touched, the sound wave is partly absorbed, causing the registration of touch. You do not need a special coating, so there is no concern about the distortion of the image presented on the monitor. The technology is cheap and proven, which guarantees its low failure rate. In addition, touch screens, acting on the basis of SAW acoustic technology can be used outdoor and in other public places. SAW acoustic technology touch screen also recognizes the touch in a glove. Still, as in the case of IR technology, you need to have regard to the casual touch, and as a result a misstatement. However, the sensitivity of this technology is lower.
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