Various instruments can project onto the wall. Either projectors or pico-projectors, or even high definition cinema type projectors. In the house we have a pico-projector that has both WIFI and HDMI input (very common on laptops nowadays) and that pico-projector is about the size of an iPhone 4. It projects about a 40-inch screen maximum and depending on the daylight and how bright the wall is, it looks better or worse. In daylight it doesn't help much, it's better in that case on a special panel but we haven't had to buy one. Salu2
It_qna
Yes, there are several brands of projectors that connect to your PC that project at very high definition despite their small size
Cheap projectors ▷ Reviews - Comparisons - Offers 【2020 】
Various instruments can project onto the wall. Either projectors or pico-projectors, or even high definition cinema type projectors. In the house we have a pico-projector that has both WIFI and HDMI input (very common on laptops nowadays) and that pico-projector is about the size of an iPhone 4. It projects about a 40-inch screen maximum and depending on the daylight and how bright the wall is, it looks better or worse. In daylight it doesn't help much, it's better in that case on a special panel but we haven't had to buy one. Salu2