The refresh rate (most commonly the "vertical refresh rate", "vertical scan rate" for CRTs) is the number of times in a second that a display hardware draws the data. This is distinct from the measure of frame rate in that the refresh rate includes the repeated drawing of identical frames, while frame rate measures how often a video source can feed an entire frame of new data to a display.
For example, most movie projectors advance from one frame to the next one 24 times each second. But each frame is illuminated two or three times before the next frame is projected using a shutter in front of its lamp. As a result, the movie projector runs at 24 frames per second, but has a 48 or 72 Hz refresh rate.
On CRT displays, increasing the refresh rate decreases flickering, thereby reducing eye strain. However, if a refresh rate is specified that is beyond what is recommended for the display, damage to the display can occur.
For computer programs or telemetry, the term is also applied to how frequently a datum is updated with a new external value from another source (for example; a shared public spreadsheet or hardware feed).
Refresh is to upgrade and reestablish a whole or portion of a program. This could mean a programmed computer interface, an event, or a mind frame, brain or mind map. Refresh is to restore a program to a fresh platform.
Refresh is also known as clearing, cleaning, and creating.
Other articles related to "refresh rate, refresh, rate":
... Also the screen has low resolution and refresh rate compared to the very high resolution and instantaneous refresh provided by an optical path in the OVF of DSLRs ... A slow refresh rate means that the image seen on the screen will have a fraction of a second lag or delay from the real scene being photographed ... in their size, resolution, visibility, magnification and refresh rate ...
... for a display to not have any noticeable flicker, the refresh rate for each LED must be greater than 50 Hz ...
... The refresh rate (most commonly the "vertical refresh rate", "vertical scan rate" for CRTs) is the number of times in a second that a display hardware draws the data ... result, the movie projector runs at 24 frames per second, but has a 48 or 72 Hz refresh rate ... On CRT displays, increasing the refresh rate decreases flickering, thereby reducing eye strain ...
... of displays on the market today those which "flash" a picture for a short part of the refresh period (CRT, cinema projector), and those which display an ... The "flashing" displays must be driven at least 48 Hz, although today, a rate significantly below 85 Hz is not considered ergonomic ... Hz material is usually displayed at 2x, 3x, or 4x the capture rate ...
Famous quotes containing the words rate and/or refresh:
“If we became students of Malcolm X, we would not have young black men out there killing each other like theyre killing each other now. Young black men would not be impregnating young black women at the rate going on now. Wed not have the drugs we have now, or the alcoholism.”
—Spike Lee (b. 1956)
“To look backward for a while is to refresh the eye, to restore it, and to render it the more fit for its prime function of looking forward.”
—Margaret Fairless Barber (18691901)