Answer #1

Since the time that phones were invented, there has not only been a great improvement in how they function, but also their display screens have also been improved. Actually, how a phone displays images, videos and other graphics is now regarded to be a parameter of judging its performance. Two recent display technologies that are now being used in smartphones include the Retina and AMOLED display.
1. Retina display
When you talk about Retina display, the phone that comes to mind is the latest smartphone from Apple called iPhone 4. This display is popular for having the capability of displaying high resolution. This comes from its ability to contain considerably bigger pixels on a small mobile phone screen than is achievable with other displays.
In consequence, Retina display can offer 326 pixels for every inch of the screen. This feature allows the viewing of high definition videos and images. This particular display technology is produced through using chemically treated screen glass along with LED backlighting to enhance the image resolution.
2. AMOLED display
This technology is largely used in televisions and it was recently reproduced such that it can now be used in phone production. The pixels here are addressed using active matrix, while OLED refers to the thin film process that contains beneficial compounds that assist in producing the display. This particular display uses lesser battery power and that is why most large televisions now feature this new technology. Actually, AMOLED displays boast of low power consumption together with better refresh rates.
The reason for their popularity is their useful power saving feature, which is much more practical in mobile phones. Nevertheless, it is hard to view an AMOLED display properly in direct sun. Furthermore the compounds utilized to produce this display are likely to be degraded much quicker than LCD displays.
Simply put, AMOLED consumes low power, while Retina display has an increased amount of pixels.

Answered By: daniel [554 ]