Apr 21, 2015 - Although screensavers may not still serve their initial purpose, they are still a feature of Windows. The average consumer wasn't aware of. Jump to Purpose - A screensaver (or screen saver) is a computer program that blanks the screen or fills it with moving images or patterns when the computer is not in use. The original purpose of screensavers was to prevent phosphor burn-in on CRT and plasma computer monitors (hence the name).
Best Answer: Screensavers were originally designed to protect computer monitors from phosphor burn-in. Early CRT monitors, particularly monochrome ones, had problems with the same image being displayed for a long time. The phosphors, used to make the pixels in the display, would glow at a constant rate for.
A Galaxy S8 with a tempered glass screen protector (left) and a Galaxy S8+ with a plastic screen protector.Once upon a time, back when the front of smartphones were all generic flat slabs of glass, buying a tempered glass screen protector was a piece of cake — almost any brand would work, and worked well. The tempered glass screen protector I got for my girlfriend’s iPhone 6 three years ago still works and looks flawless to this day. But then phone displays began making things difficult by, well, stop being so straightforward. They began curving and turning and twisting in ways that gadget screens never did before — and tempered glass screen protector makers have had headaches ever since.Like most smartphone trends these days, the curved screen movement was spearheaded by the two South Korean tech giants in 2015, when LG and Samsung released flagships with screens that seemingly bent the laws of physics. LG’s G4 had a subtle inward curve (like a banana) while Samsung’s S6 Edge had dramatic curves on both the right and left sides of the screen.The curved nature of both device’s screens made the jobs of tempered glass protector companies much more difficult. No longer could they churn out a generic sheet of flat glass that can be slapped onto any phone as long as they cut the dimensions correctly.
Companies had to manufacture glass that also curved along with the device’s screen. And because of the sensitive nature of a curved tempered glass screen, the tempered glass protector can no longer have adhesive on the entire side of the glass (that’s how flat screen tempered glass protectors were made).
Instead, curved screen tempered glass protectors can only have adhesive on the edges, leaving the middle, for the lack of a better term, not sticky.In the early days of curved phones, these “only the edges are sticky” tempered glass protectors were all terrible. The middle of the screen protector (because it has no adhesive) would not quite touch the screen, resulting in major touch sensitivity issues.
It was such a major problem for the Samsung Galaxy S6 Edge (released in 2015) that one Google search for “tempered glass Galaxy” shows dozens and dozens of thread on forums ranging from to XDA warning users not to waste money on them. Eventually, tempered glass companies figured out a way to fix the touch sensitivity issues, and that’s by using the “Dot Matrix” technology that was first developed for car windscreens. Basically, the little dots help the screen protector touch the display to a point (but not stick down all the way which would lead to easy cracking). The Newton ringsThe good news is the Newton rings are mostly noticeable when the display is off (as seen in my photo above), it’ll mostly go away once the screen is turned on.A final problem with tempered glass screen protectors that only have adhesive on the edges is that they have a tendency to trap muck/dust/dirt.
This was never a problem before on flat screen tempered glass protectors. The curved ones had to double down on the adhesive, as they rely exclusively on the edges to keep everything in place. No dust at all here.I have two, and I’ve been using a tempered glass screen protector on one and a plastic film protector on the other (the official Samsung version).
All the flaws of the tempered glass protector (Newton rings, trapped dust, dot matrix) do not apply to the plastic film protector, which fits seamlessly. I’ve had the plastic film protector on since day one of purchase (it’s been over two months now) and the fit is still mostly flawless, save for one little spot of air bubble (but that’s totally my fault I’ve explained in the video below).So if you’re someone who can’t stand the dots or the dirt, a plastic film protector might be the way to go, but the tempered glass offers a bit more protection, because ultimately — it’s an extra piece of hardened glass on top, whereas the plastic film is just a flimsy piece of plastic.
I feel that if I were to drop a small rock on both phone’s screens, the device with the tempered glass protector would suffer less damage.The tempered glass protector I got for my S8 is by AmazingThing, and other than the three flaws, it works very well. I can report there are no touch sensitivity issues whatsoever — I can type on it just as fast as I can on an uncovered display — and the texture of the glass feels better than the plastic film.So whether you’re buying the Galaxy S8, or the upcoming iPhone 8, you’ll have to make a decision: do you want to go glass and get more protection but with minor annoyances, or plastic and get a much cleaner look?More on Forbes.
Screensavers were originally designed to protect from burn-in. Early monitors, particularly monochrome ones, had problems with the same image being displayed for a long time. The phosphors, used to make the pixels in the display, would glow at a constant rate for such a long period of time that they would actually discolor the glass surface of the CRT. This discoloration would then be visible as a faint image overlaying whatever else was displayed on the monitor. Advances in display technology and the advent of energy-saver monitors have virtually eliminated the need for screensavers. But we still use them.Here are the main reasons why.
Entertainment - The most common reason we use screensavers is for the fun of it. Watching that macaroni dance across the screen to the tune of 'Hey Macarena' can be a great diversion for a few minutes.
Security - By setting up a screensaver with password protection, you can walk away from your computer and feel comfortable that nobody is going to be able to see any sensitive information. Uniform look - Many companies require all employees to use a particular screensaver. This creates a uniform and perhaps aesthetic environment and ensures that no inappropriate screensavers are displayed. Advertisement - Companies, particularly retail businesses, that have computers in areas accessible to customers will often have a screensaver that promotes their business or product. Information - A lot of screensavers provide either static or real-time information.
A screensaver may cycle through a series of trivia questions. Another may pull information from a Web site and stream it across the screen. Distributed computing - Another form of screensaver takes advantage of your computer's inactivity to process data from another source.
A good example of this type of screensaver is, which is currently utilized by thousands of computer users. This screensaver displays a graph of the and processes information received from the (Search for Extraterrestrial Intelligence) servers. It sends back results based on the data processed.
Two Examples Of Screensaver
By using the combined processing power of all of these computers, SETI is significantly reducing the amount of time it takes to sift through all the signals received from its.