Keypad assembly

Abstract

A keypad assembly includes a panel, a plurality of keys protruding from the panel, a light-emitting assembly, and a control unit. The light-emitting assembly includes a cover board and a plurality of light-emitting members mounted on the cover board. The cover board is hinged to the panel such that the cover board is capable of rotating relative to the panel to enable the light-emitting members to illuminate the keys. The control unit includes an angle sensor and a controller. The angle sensor senses an included angle between the cover board and the panel and creates signals of the included angle. The controller receives the signals and accordingly controls the light-emitting members to be turned on or turned off.

Dependencies are inferred from the claim text.