basically this device is based on inherent image storage capability.plasma panel and laser scan display is based on this technology but DVST is most widely used in graphical displays
chuitya giri
1) Primary gun 2) Flood gun
DIRECT VIEW TUBE CATHODE RAY TUBE dvst-1)it has flatscreen crt-1)it maybe ormaynotbe flat screen 2)it has poor contrast 2)better contrast then dvst 3)refreshing not allowed 3)refreshing allowed 4)selecting or part erasing of screen 4) in this erasing is allowed not allowed 5)performance is inferior to CRT 5)verybetter performance then DVST 6)high resolution for complex pictures
Good frend for Iesvs sake forbeare, To digg the dvst encloased heare. Bleste be ye man yt spares thes stones, And cvrst be he yt moves my bones
The contrast in a DVST monitor is not sharp They ordinarily do not display color . Selected part of the picture can not be erased The erasing and redrawing process can take several seconds for complex pictures.
The contrast in a DVST monitor is not sharp They ordinarily do not display color . Selected part of the picture can not be erased The erasing and redrawing process can take several seconds for complex pictures.
DVST has inherent image storing capacity so that it avoids flickering of image which has been displayed on computer screen.
Good frend for Iesvs sake forbeare,To digg the dvst encloased heare.Bleste be ye man yt spares thes stones,And cvrst be he yt moves my bonesRead more: What_did_William_Shakespeare_have_written_on_his_gravestone
Shakespeare is buried beneath the floor of Trinity Church in his hometown of Stratford. The following doggerel verse is engraved on the paving stone:Good frend for Iesvs sake forbeare,To digg the dvst encloased heare.Bleste be man spares thes stones,And cvrst be he moves my bones
DVST stands for Direct View Storage Tube. It is one of the display devices in which an electron flood gun and writing gun is present. The flood gun floods electrons to a wire grid on which already the writing gun has written some image. The electrons from the flood gun will be repelled back by the negatively charged wire grid which has been charged so by the writing electron beam. The part of the wire grid which has not been charged -ve will allow the electrons to pass through and the electrons will collide on the screen and produce the image. Adv.-1)Refreshing CRT is not required. 2)Complex picture can be displayed in high resolution without flicker 3)It has flat screen
There is no reason to think that Shakespeare wrote his own epitaph, especially as he probably could have done a better job of writing a poem than this:Good frend for Iesvs sake forbeare,To digg the dvst encloased heare.Bleste be the man thatspares thes stones,And cvrst be he thatmoves my bones
I, YOU, HE, SHE, IT, WE, YOU, THEY : WILL UNDERSTAND.