Folding phones have been launched by Samsung, Xiaomi, and Motorola.
TrendForce divides them into three classes: into easy to carry, vertical flip-top folding, and horizontal folding.
An inward fold requires an extra secondary screen and the outward fold is lighter in weight but exposes the screen to the risk of scratches.
Although the outward folding radius is larger, the mechanical performance of the module and hinge design is very challenging and, since the screen is exposed, it must be kept in close contact with the hinge at every angle.
