The accuracy of a touch screen device is crucial in different settings. A screen that does not read or respond to touch accurately can cause a variety of problems. For one, a device may register the wrong commands. Imagine a medical testing lab where the panel computer does not register accurately. Such a situation may lead to false tests; and consequently, incorrect diagnoses.
The same applies to operating machinery. Wrong commands can cause injuries or other damages. An inaccurate touchscreen monitor wastes a lot of time, which impacts productivity. Inaccuracy when operating a touchscreen display can lead to bad data and that has serious implications.
Hand Positioning and User Interface
The hand positioning is one of the factors that influence the performance of a touchscreen monitor. The centre of a screen is said to be the most accurate part. Moving fingers to the right or left side of a display may reduce its sensitivity. The user interface will also impact performance. Varying touch screen technologies require different stimuli to operate. For example, a projected capacitive touchscreen monitor only requires a simple touch and it registers a signal. A resistive touch screen, however, needs pressure on the display for the same results.
Some modern touchscreen monitors have haptic systems that influence performance. Integrating a haptic system in a touchscreen device allows the user to feel the vibrations of tactile input. Input has improved accuracy when a user can feel every single touch. The systems also make eye-hand coordination tasks easier.
Gloved or Bare Hands
Touchscreen devices can be used with bare or gloved hands, but it will depend on the technology. Resistive touch screens allow the use of gloved hand because they don’t interfere with the pressure. Gloved hands, however, interfere with input on a capacitive display because there is no electrical charge passing through the gloves;however,some types of gloves are designed to act as conductors, making them usable on a projected capacitive touchscreen.
Improving performance, accuracy, and reliability in touch-screen based applications, Embedded Computing Design