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Simulations of Passive Matrix Polymer Image Sensors

Published online by Cambridge University Press:  10 February 2011

D. Braun  and
G. Yu
D. Braun
Affiliation:
EE Department, Cal Poly State University, San Luis Obispo, CA 93407, dbraun@calpoly.edu
G. Yu
Affiliation:
UNIAX Corporation, Santa Barbara, CA 93117, GangYu@Uniax.com
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Abstract

Two-dimensional passive photodiode matrices are hardly useful for image sensing due to the crosstalk between pixels. This crosstalk makes it difficult to recover information from individual pixels. A switching unit attached to each sensing unit has been the common solution in image sensors (such as in CMOS sensors and in TFT-PiN a-Si photosensors). A novel organic photodiode with voltage-switchable photosensitivity was developed recently. Passive photodiode matrices made with such organic photodiodes can be used for image sensing applications. This circuit simulation study demonstrates an effective scheme to extract images from passive photodiode matrices, concluding that individual photodiode parameters determine the contrast and resolution of N by M image sensors.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 558: Symposium B – Flat-Panel Displays and Sensors-Principles, Materials… , 1999 , 339
Copyright
Copyright © Materials Research Society 2000

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References

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