Collapsible supporting device for a portable computer

A collapsible supporting device for a portable computer, the portable computer having opposite front and rear portions, said supporting device comprising:

• a coupling seat having a surface, and first and second end portions opposite in a direction;
• a pair of elongate base members, each of which has a first pivot end connected pivotally to a corresponding one of said first and second end portions of said coupling seat, and a first abutting end opposite to said first pivot end, said base members being pivotable relative to said coupling seat about first and second axes transverse to said surface of said coupling seat, respectively, said first abutting end of each of said base members being formed with a stopping block;
• a pair of elongate interconnecting members, each of which is a telescopic member that has a second pivot end connected pivotally to a corresponding one of said first and second end portions of said coupling seat, and a coupling end opposite to said second pivot end, said interconnecting members being pivotable relative to said coupling seat about third and fourth axes that are transverse to said surface of said coupling seat, respectively, and that are coaxial with said first and second axes, respectively;
• and
• a pair of elongate supporting members, each of which is coupled to said coupling end of a corresponding one of said interconnecting members and has opposite second abutting ends;
• said supporting device being operable so as to move from a folded position, where said base members are disposed parallel to and under said interconnecting members, respectively, to a first supporting position, where said interconnecting members are disposed between said base members, where said stopping block on said first abutting end of each of said base members is adapted to abut against the front portion of the portable computer, where a desired angle is formed between said interconnecting members, and where said supporting members are disposed uprightly such that one of said second abutting ends of each of said supporting members is disposed at a location higher than that of said first abutting end of each of said base members and is adapted to abut against the rear portion of the portable computer.