Quote:
Originally Posted by webroot
Thanks for summing up, I want to understand couple of things,
1. what difference have LCD vs LED? I think most smartphones are LCD based today.
2. And how does the screen resolution make a difference?
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1. When you see an LCD screen these days they are commonly LED lit, meaning that (basically) there is an array of LEDs behind the LCD screen emitting light outward (LCDs don't produce their own light, so they need some sort of "backlighting" or illumination)(It seems to me that CCFL edge-lit screens were popular for a good while, but everything that I have seen recently (last few years) has been LED backlit. Sorry, I don't keep up on screen tech too much.). You can probably still find TVs, monitors, and other LCD screens that are not using LEDs for the light source, but it is becoming less common these days, as far as I know.
2. Screen resolution makes a big difference for the general quality of the image that the device can produce. A super low res screen will make a hazy, fuzzy, and indistinct image which may cause eye strain. What you want is a good resolution to screen size ratio versus viewing distance. This number will vary based on the purpose of the display and the kind of electronic that it is housed in. E.g., a TV doesn't have to have as high ppi because the viewing distance is usually on the scale of 8-12 feet or so.
You can find general guidelines on the internet. I say, always get the highest resolution screen that you can reasonably afford.