Up until now, I have been talking about the items under the hood. In this post, I will try to throw some light on the part that we most interact with — the display.
And guess what I learned today?!
The dark modes available on apps like Youtube are not just for aesthetic purposes. They save battery.
And to explain why that happens, I have to tell you about the types of display used in smartphones:
The type of display explains how it works. If it is an LCD, you have a backlight and a filter on top of it. This filter blocks some colors and allows some. The colors that are allowed make up your display. If it is an OLED, you have individual diode units that emit light which makes up the display.
Now, LCD made its debut in the first smartphone in 1992 and the OLED in 2008. If OLED is the newer and better technology, why are majority of the smartphones still using LCD (and its variants) in 2020?
One, because LCD is not as expensive as OLED. Two, because OLED is not remarkably better than the LCD. If OLEDs are battery efficient, it is so only when you use apps that are predominantly black/dark. Works for you if you are Batman.
Now that the technology part is covered, let us get to the number part.
Resolution — More pixels, the better. The pixels per inch have to be 300 — minimum.
Refresh rate — This is measured in Hertz which means that this is a per-second measure. So if the refresh rate is 60 Hz, it means that the screen refreshes 60 times per second. The more the refresh rate, the more fluidic it appears.
And that is my 2 cents on Smartphone Display.
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