sdubb
Aug 29 2008, 02:54 PM
I am curious as to an article I read.
http://www.projectorpoint.co.uk/ProjectorLCDvsDLP.htmTo me it seems as if the DLP would be brighter "mirrors and all" But they state that LCD is brighter using the same wattage lamp. Does anybody have any insight that would help me better understand this topic.
DAZZZLA
Aug 29 2008, 04:08 PM
A quick answer is a 3 LCD projector utilises the lamp better than a single chip DLP. The light is split into R, G, B and past through the respective monochrome LCDs then recombined into an image. The DLP on the other hand splits the colours over time. So at any given time there will only be 1/3rd of the intensity present, only R, G or B (W) at a time. For example while the colour wheel is on the R position the rest of the light is wasted as heat. This drawback brings the single chip DLP closer to the 3 LCD. Also keep in mind that the 3 LCD will be using polarisation recycling so its efficiency will be improved compared to a single panel projector.
DJ
sdubb
Aug 29 2008, 04:37 PM
Hmmm I dont really understand it, but thats okay. The thing that really baffles me is that why my (7") projector is so bright using only a 50 watt halogen bulb. Is the fresnel "system" a better way to project images via a projector? It seems to work really well I guess the drawback is the length?