Computer, television and other electronic devices are based on the lattice principle. Every image we can see is joined by countless tiny blocks known as pixels.Early electronic devices were limited by resolution, and each pixel was sharply defined. In the mobile Internet era, with the continuous improvement of screen resolution and smoother lines, the "pixel" has gradually become a synonym for retro.But the pixels did not fade out of people's sight. On the contrary, they became more and more popular. Lego building blocks, mosaic tiles, magic cube paintings, and hand-made pin beans are all extensions and applications of the pixel style.