lcd vs rear projection vs dlp vs plasma

[Deciazulado]

Mmm just looking from your diagram you have almost all the light falling on top of your TV. The best image happens when NO light falls on your TV. (See my direct view vs projection post elseqhere for the discussion of the light phenomenon called flare (light falling on the image), which degrades the blacks and kills overall contrast). So in your current arragement the brightest the TV the better, to overcome the lrgth falling on it. But of course it would be easier if you rearranged things a little or did some light control to ensure the TV screen is in shadow. Your daylight viewing must be very different from your nightime viewing!