The price of the background wall: price = unit price * area, so there are two main influencing factors. One is the area of the TV background wall, which depends on the space area, basically there will be no big difference.
The other is the unit price, which varies according to the materials selected. The TV background wall on the market is rich in materials, ranging from dozens of wallpaper wallcoverings, hundreds of microcrystalline glass and ceramic tiles to thousands of jade, which can be selected according to your own situation and budget.