Multifunctional case for portable electronic device

A multifunctional case for receiving or supporting a portable electronic device, comprising:

• a first layer;
• and
• a second layer connected to the first layer at edges, a receiving space formed between the first and second layers for receiving the portable electronic device;
• the second layer provided with a base portion, a main supporting portion, two side supporting portions and two retaining portions;
• the two side supporting portions and the retaining portions symmetrically positioned at two sides of the main supporting portion;
• when the case is folded up as a support, the first layer and the second are together folded, the retaining portions are stacked on the base portion, and the side supporting portions are perpendicular to the retaining portions and the main supporting portion, and the main supporting portion is at an acute angle with the base portion;
• wherein the base portion includes a baseline, the baseline includes a middle portion and two end portions, and the main supporting portion includes an end edge adjacent to and parallel with the middle portion, the retaining portion includes a first edge adjacent to and parallel with the end portion of the baseline;
• a first folding area is formed between the base portion and the main supporting portion;
• a second folding area is formed between each side supporting portion and the main supporting portion;
• and a third folding area is formed between each pair of the side supporting portion and the retaining portion.