Use of Optical Sensor in Smart Watch as a Replacement to Touch Screen

Abstract

As we are getting smarter day by day, so is our surrounding environment. In this era of digitization, a watch can do what a computer cannot do a decade before. Yet we are using the same old touch panel in smart watches which is the weakest point of the smart watch thus posing a threat to its structural integrity. Moreover, touch panels are bulky and power hungry. The existing solution includes increasing the thickness of glass or using harder materials such as sapphire, but none is a feasible solution. The rule of the thumb is that as the thickness of the cover glass increases, the quality of the touch signal that can be received by the controller decreases. This paper tends to address this problem by replacing the touch screen panel with a low cost and energy-efficient alternate (optical sensor).