Kayvon described how the electron beam is used to light up the phosphor screen. Clearly, there's not only one spot on the screen lit up each frame. Presumably then, the electron beam is racing around lighting up all the pixels desired and then repeating for the next frame. Does this mean that the first couple of spots lit up by the electron beam "fade" away before the later ones do (in a given frame)? In order to counteract this, does the electron beam use some special pattern or is this a non-issue?
cxiao
How long the spots lit up by the electrons stay seems to be determined by what kind of phosphor is used to make the screen (https://en.wikipedia.org/wiki/Cathode-ray_tube#Phosphor_persistence).
gracie
I was also wondering if there is one of these beams per pixel or if the beam hits multiple pixels in a scan and they stay lit up?
Kayvon described how the electron beam is used to light up the phosphor screen. Clearly, there's not only one spot on the screen lit up each frame. Presumably then, the electron beam is racing around lighting up all the pixels desired and then repeating for the next frame. Does this mean that the first couple of spots lit up by the electron beam "fade" away before the later ones do (in a given frame)? In order to counteract this, does the electron beam use some special pattern or is this a non-issue?
How long the spots lit up by the electrons stay seems to be determined by what kind of phosphor is used to make the screen (https://en.wikipedia.org/wiki/Cathode-ray_tube#Phosphor_persistence).
I was also wondering if there is one of these beams per pixel or if the beam hits multiple pixels in a scan and they stay lit up?