ePaper

Dhananjay V. Gadre; Vasudev Lal; Sulochana Dhar; Anshul Kumar

doi:10.1117/12.763222

25 February 2008 ePaper

Dhananjay V. Gadre, Vasudev Lal, Sulochana Dhar, Anshul Kumar

Proceedings Volume 6910, Light-Emitting Diodes: Research, Manufacturing, and Applications XII; 69100W (2008) https://doi.org/10.1117/12.763222
Event: Integrated Optoelectronic Devices 2008, 2008, San Jose, California, United States

Abstract

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.

Citation Download Citation

Dhananjay V. Gadre, Vasudev Lal, Sulochana Dhar, and Anshul Kumar "ePaper", Proc. SPIE 6910, Light-Emitting Diodes: Research, Manufacturing, and Applications XII, 69100W (25 February 2008); https://doi.org/10.1117/12.763222

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