Sports image / grain pattern on solid block colour

xonize

Novice Member
Joined
Feb 12, 2017
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Location
Essex
Evening all:

Setup:

Epson EH-TW7100 Projector
Sapphire Pull-up Screen - 203 x 114cm (16:9)
Chromecast TV (4K)
Now TV / Prime / BT Sport accounts
3.5mm to 2x Bluesound Flex ( paired stereo speakers )

I have noticed on solid block colour scenes a static grain pattern mainly when watching live football across the grass of the pitch. It appears again when looking at a solid colour scene within a movie say where the camera shot pans the blue sky line.

On scenes with multiple colours, characters, objects, textures it's hardly noticeable.

Does anyone have this same defect ?
Is this common ?
Is this a fault with the pull up screen ?
Is there a tweak of the projector settings that can solve this issue ?

Or is this a common defect / artefact when projecting a mainly solid colour onto a white screen ?

Many thanks in advance
 

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