| 摘要 |
A glass keypad for an automatic premise-monitoring alarm system of remote sensors linked to a control panel has a screen defined by a peripheral edge spacing inboard and outboard faces and allowing a flush or closely gapped mounting to a wall. There is also operative circuitry and devices as well as a diminutive housing that conceals the circuitry and devices and is mounted to the peripheral edge and/or outboard face. Thus, the glass keypad has display mode, where a display is illuminated on the screen including illuminated keys for entry of inputs to the control panel, as well as a sleep mode in which the illumination is switched to reduced power such that the keypad display is invisible. The reduced power state is off or very low such that any color, texture or design on the wall shows through, the glass keypad thus self-camouflaging itself.
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