Nothing short of a brighter display, or getting the display closer to the glass to eliminate the small gap. I bought a 40" commercial display on Craigslist for $100―one of the outdoor advertising see it from 6 miles away in direct light kind. I pulled everything out of the casing, and replaced the cabling with longer wires so I could mount the power supply and daughter board that had the inputs vertically against the back of the display. That cut down the weight a TON, and gave a much slimmer profile so I was able to get the screen even closer to the glass.