Patent ID: 8203092
Filing Date: 2012-06-19
Classification: H01H

Abstract:
1. A keypad structure comprising: a light guiding plate disposed on a lateral side of a backlight source, a plurality of microstructures being formed on a low surface of the light guiding plate; a base disposed on an upper surface of the light guiding plate; a thin film circuit board disposed on the base, the thin film circuit board comprising at least one exhausting notch; a resilient component disposed on the thin film circuit board, the resilient component comprising a touch portion; a keycap disposed above the resilient component, the keycap being made of transparent material; a transparent layer formed on the keycap, light emitted from the backlight source and refracted by the plurality of microstructures passing through the keycap and the transparent layer as the backlight source lights the lateral side of the light guiding plate; and an elevating mechanism installed between the keycap and the resilient component for guiding the keycap to move relative to the base.