Why Capacitive Touchscreens Produce Better Images
There's no denying the fact that capacitive touchscreens are popular. Statistics show, in fact, that over nine in 10 of all touchscreens shipped annually are powered by capacitive touch-sensing technology. To put that number into perspective, only about 4% of all touchscreens shipped annually are powered by resistive touch-sensing technology. While there are several benefits associated with capacitive touchscreens, one of the primary reasons for their unparalleled popularity is their ability to produce high-quality, crystal-clear images.
Glass Display Layer
One of the reasons capacitive touchscreens produce better images than other types of touchscreens is because they are designed with a glass display layer. Found on the very top of a capacitive touchscreen, the glass display layer features etched electrodes. When you tap or touch the glass display layer, your finger will absorb some of the electrostatic field produced by the electrodes, resulting in a change of capacitance. The capacitive touchscreen will recognize this change of capacitance as a touch command.
Because capacitive touchscreens feature a glass display layer, they are able to project more light from the underlying liquid-crystal display (LCD) that other types of touchscreens. As explained here, capacitive touchscreens can transmit nearly 90% of light - far more than the amount of light transmitted by resistive touchscreens.
Better Contrast
Capacitive touchscreens also have better contrast than other touchscreens. What does this mean exactly? Contrast refers to the range of brightness and darkness a display device is capable of producing. Display devices with poor contrast have a narrower range of brightness and darkness than their counterparts with strong contrast.
With better contrast, capacitive touchscreens are capable of producing pitch-black images as well as bright-white images. Whether you're browsing a web page or watching a video, you'll experience better image quality when using a capacitive touchscreen, partly because of its superior contrast.
