I was going to say same, sometimes creators often add these flares so the Lens Flare will allow you to take control over all the elements and spruce it up a bit and make it look presentable.
How to add lens flare to your videos in Davinci...
Try turning the sharpness down and if worse comes to worse, mask the moire and blur it slightly then add noise or grain back in to match the rest of the image.
Alan, is it just that you would rather not use your mobile for the display? I enjoy using my 11 inch iPad made possible with a mounting device made by Mavmount (mavmount.com). I love having 4X the real estate as compared to my mobile ‘phone or my...