Display Mode of Observation
Electronic visual displays can be observed directly (direct view display) or the displayed information can be projected to a screen (transmissive or reflective screen). This usually happens with smaller displays at a certain magnification.
Display modes of observation | |
---|---|
Direct view display | Projection display |
transmissive mode of operation | front-projection (with reflective screen) e.g. video projector |
reflective mode of operation | rear-projection (with transmissive screen) e.g. rear projection television screen |
transflective mode of operation (e.g. transflective LCD) |
retinal projection (with or without combiner) e.g. head mounted display |
A different kind of projection display is the class of "laser projection displays" where the image is build up sequentially either via line by line scanning or by writing one complete column at a time. For that purpose one beam is formed from three lasers operating at the primary colors and this beam is scanned electro-mechanically (galvanometer scanner, micro-mirror array)) or electro-acousto-optically.
Read more about this topic: Electronic Visual Display
Famous quotes containing the words mode of observation, display, mode and/or observation:
“Almost any mode of observation will be successful at last, for what is most wanted is method.”
—Henry David Thoreau (18171862)
“Nobody thanks a witty man for politeness when he accommodates himself to a society in which it is not polite to display wit.”
—Friedrich Nietzsche (18441900)
“Poor John Field!I trust he does not read this, unless he will improve by it,thinking to live by some derivative old-country mode in this primitive new country.... With his horizon all his own, yet he a poor man, born to be poor, with his inherited Irish poverty or poor life, his Adams grandmother and boggy ways, not to rise in this world, he nor his posterity, till their wading webbed bog-trotting feet get talaria to their heels.”
—Henry David Thoreau (18171862)
“One mans observation is another mans closed book or flight of fancy.”
—Willard Van Orman Quine (b. 1908)