What screen for high ambient light room?

We are professional home theater designers and you have several major problems

1: JVC projectors are low lumin projectors

2: You have ambient light spill over

3: Your Grayhawk does improve contrast but is vastly inferior to ambient light blocking screens.

An ambient light reflecting screen will help as well as switching to a much higher lumen output projector you should be looking at a projector with 2500-3,000 lumins, most of the JVC projectors are 1,800 lumins

There are also DIY retrofitable battery powered blinds by Lutron

Have you considered a drape you can slide accross the room's opening to stop the light spillage?

Dave and Troy
Audio Doctor NJ

We Already have a black out blind in the most offending window but there is spillage around it. I suspect there are better. A laser projector will fix the lumin problem. The ones I have looked at are all 3000 lumins. I think the drape would push my wife a bit far plus most of our casual watching is done from the kitchen. We generally sit down to watch movies at night.
I certainly could fit a better black out drape. I think the easiest thing to do is change the screen. Is there a particular screen you like best in this situation?
Thanx!

Online calc says you get about 14fL of brightness currently, good for low ambient light, bright for a dark room.

A 1.1 gain would yield 17fL, not a huge difference, and at the expense of black levels, unless getting ALR.

With the Optoma UHZ65 laser projector with the same size/distance/gain, you would get  >23fL, and the calculator states good for rooms with ambient light.

Accept that with light spillage you still need an ALR screen to compensate for any light in the room.

OP please contact us we sell many brands of screens and we are sure we can find one that will be perfect for you.

Dave and Troy
Audio Doctor NJ Screen Innovations dealer

Very happy with the Da-Lite Parallax. Not a cheap option, but if you pull up the videos on their website, it's the real deal.