In embodiments of a flexible display extendible assembly, an extendible assembly includes a slideable display guide integrated in a first housing part of an extendible electronic device. The extendible electronic device includes a flexible display that slide-engages into the first housing part of the extendible electronic device. The extendible assembly includes an extendible mechanism that is coupled in a second housing part of the extendible electronic device and to the slideable display guide. The first and second housing parts of the extendible electronic device slide-engage relative to each other. The extendible mechanism is implemented to extend as the first and second housing parts slide apart relative to each other, and also to retract as the first and second housing parts slide together relative to each other.