25 February 2008 ePaper
Author Affiliations +
LEDs can be used as light emitters as well as detectors. It is known that like any PN junction, an LED too can be modeled as a capacitor in parallel with a light dependent current source [4]. 'ePaper' exploits this property of LEDs. 'ePaper' is an LED based graphic tablet which allows a user to write or sketch on an inexpensive hand held device. Multiple pages can be saved on the device which can be scrolled through and uploaded to a computer as bitmaps. ePaper is designed to be scalable to any desired dimension.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Dhananjay V. Gadre, Dhananjay V. Gadre, Vasudev Lal, Vasudev Lal, Sulochana Dhar, Sulochana Dhar, Anshul Kumar, Anshul Kumar, "ePaper", Proc. SPIE 6910, Light-Emitting Diodes: Research, Manufacturing, and Applications XII, 69100W (25 February 2008); doi: 10.1117/12.763222; https://doi.org/10.1117/12.763222

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