Patent ID: 6140987
Filing Date: 2000-10-31
Classification: H01H,Y02B,Y04S

Abstract:
A user interface, comprising:a liquid crystal display divided into a plurality of regions;a microcontroller operatively coupleable to a host controller, the microcontroller driving the liquid crystal display according to signals received from the host controller so as to display text or images on each of the plurality of regions of the liquid crystal display;a plurality of transparent keys, each of the keys overlying a corresponding one of the regions of the liquid crystal display, each of the key defining a separate tactilely-distinguishable touch area, and each of the keys being independently cantileverable;a plurality of mechanical switch elements disposed proximal to the regions of the liquid crystal display, each of the switch elements being engageable by one of the keys and providing positive tactile and aural feedback when the key is depressed and released; andwherein the microcontroller detects actuation of the switch elements and provides an indication to the host controller in response thereto.