Patent ID: 8913376

Claim:
An expandable keyboard device for use in conjunction with an electronic device, the electronic device having a display surface and a bottom end, said expandable keyboard device comprising: a keyboard including a housing and a plurality of keys provided on said housing; a supporting assembly including a first panel and a second panel connected to said first panel, said second panel being adapted to connect with the electronic device, said supporting assembly being movable relative to said keyboard between an unfolded state and a folded state, said first panel extending upwardly relative to said keyboard for supporting the electronic device above said keyboard when said supporting assembly is in said unfolded state so that the bottom end of the electronic device abuts against said keyboard rearwardly of said keys and so that the display surface faces frontwardly, said second panel and the electronic device covering said keyboard when said supporting assembly is in said folded state; an electrical connector disposed in said housing for electrical connection with the electronic device; and a connecting unit interconnecting said supporting assembly and said housing, and including a slide plate slidable forward and rearward relative to said housing; wherein said first panel is pivoted to and movable along with said slide plate relative to said keyboard.