Sabtu, 23 November 2013

What is the significant of monitor resolution refresh rate?

Q. I try to set my monitor to different resolution, but with the same supported resolution, there are a few "refresh rate" settings associated to it. I just wonder what is the significant of monitor resolution refresh rate? If I set the "wrong" refresh rate, will it do any damage to the monitor? If higher the refresh rate, will it produce better picture quality?

A. Refresh rate depends on the monitor's make, monitor's resolution, video card (if installed) or on-board video chip (if included in the motherboard).

You should consult display [monitor] and video card manuals before changing the settings to determine the supported refresh rates. Most users swear that increased refresh rate decreases flickering, thus reducing eye strain due to better picture quality. Microsoft caution users that if the specified refresh rate is beyond what is recommended for the monitor, damage to the display, thus the monitor, can occur http://support.microsoft.com/kb/311403

On smaller CRT monitors (~<14") are set comfortably at 60–72 Hz. On larger CRT monitors (~>17") most are set to a more comfortable 85 Hz or higher. 100 Hz is comfortable for almost any size. However, LCD monitors refresh rate would more accurately be referred to as frame rate in their case (often locked at 60Hz).

The refresh rate can be calculated from the horizontal scan rate by dividing by the number of horizontal lines and multiplying the result by 0.95 (since about 5% of the time it takes to scan the screen is spent moving the electron beam back to the top). For instance, a monitor with a horizontal scanning frequency of 96 kHz at a resolution of 1280 × 1024 results in a refresh rate of 96,000 / 1024 × 0.95 = 89 Hz (rounded down).


How to choose the right LCD monitor for gaming?
Q. I am going to be using the LCD monitor with my Xbox 360 and I am having difficulties on what I should look for.

I can't seem to figure out what specs I am looking for. Can anyone tell me about which contrast ratio, vertical/ horizontal refresh rates, resolution, and brightness I should look for on an LCD monitor?

Also would it be better with HDMI or no? If possible can you also list a few monitors you would recommend?

A. HDMI is good, but expensive. DVI will give you the same result for a lot less.

Refresh rates are going to be about the same for every brand. However, some top of the line have 240 Hz rates - very good.

Resolution: 1920x1200 is HD widescreen.

Contrast of 1000:1 or better.

Response: 5 ms or less

Dot Pitch: 0.28 or less

Brightness: 300 cd at a bare minimum, get the highest.





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