Flexible screen of foldable smart phones subverts people's recognition of traditional smart phones. It has both portable smart phones and high-definition large
screen of tablet computer, which can be folded, unfolded freely and easily packed into pocket, bringing a more powerful visual experience than the largest smart
phones on the market at present. It perfectly solves the long-term contradiction between HD large screen and portable, and revolutionizes the construction of a new
way of human-computer interaction.