Light information device and method for producing the same

Details Light information device and method for producing the same Light information device and method for producing the same

1994-12-19

1996-07-16

Epps, Georgia Y.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

359 72, H01J 4014

Patent

active

055369332

ABSTRACT:
The light information device of the invention includes a semiconductor having a photoconductive effect or a photovoltaic effect. In the light information device, a photoconductivity and a dark conductivity of the semiconductor are varied by an aging process using an external stimulus, and the photoconductivity and the dark conductivity after the aging process have values which are equal to or lower than 20% of respective initial values thereof before the aging process.

REFERENCES:
patent: 5064275 (1991-11-01), Tsunoda et al.
patent: 5168378 (1992-12-01), Black et al.
patent: 5177628 (1993-01-01), Moddel
patent: 5236620 (1993-08-01), Reiffenrath et al.
patent: 5307186 (1994-04-01), Izumi et al.
U.S. application Ser. No. 08/126,246 filed Sep. 23, 1993 Y. Izumi et al. Pending.
U.S. application Ser. No. 08/006,921 filed Jan. 22, 1993 Y. Ishii et al. Pending.
U.S. application Ser. No. 08/380,249 filed Jan. 27, 1995 Y. Yamamoto et al. Pending.
Solar Cell Handbook, (Institute of Electrical Engineers of Japan, Chapter 4, 72-120, Jul., 1985, "Characteristics of Amorphous Si Solar Cell."
M Yamaguchi et al., Nihon Kagaku Joho, Chapter 2, pp. 28-42, Jul. 1986, "Development and Practice of Light-Sensitive Element."
Optical Computing, Chapter 2, pp. 10-48, 1989, "Fundamental Knowledge of Optics."
M. Iwasaki et al., Pioneer Technical Element Report, No. 6, pp. 2-9, 1992, "Development of Photoconductive Liquid Crystal Light Valve using a Si:H."
D. L. Staebler et al., Appl. Phys. Lett., vol. 31, No. 4, pp. 292-294, Aug., 1977, "Reversible conductivity changes in discharge-produced amorphous Si.sup.a)."
K. Tanaka et al., Amorphous Silicon, Chapter 5, pp. 189-216, Mar. 10, 1993, "Structural stability and optical induction effect."
N. Nakamura et al., J. Non-Cryst. Solids, 59 & 60, pp. 1139-1142, 1983, "Influence of Excess Carriers on the Staebler and Wronski Effect of a-Si Solar Cells."
Liquid Crystal Device Handbook, Nikkan Kogyo Shinbunsha, Chapter 6, pp. 417-421, Oct., 1990, "Method for Driving and Writing in a Liquid Crytsal Device."
S. Muto et al., Jpn. J. Appl. Phys., vol. 29, No. 9, pp. 1724-1726, Sep., 1990, "Optical Stabilizer and Directional Coupler Switch Using Polymer Thin Film Waveguides with Liquid Crystal Clad."

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