Churches use video screens for services and educational purposes. They can stream services, display videos and even use them as visual aids during the sermon. These screens LED or LCD based which means they need to be large enough to be visible through the area of congregation. They should also have a high contrast ratio to make the content legible because the lighting in a church can change drastically. Additionally, they can be used to promote events, local news, and commemorative videos which helps build community relations.