Abstract

This paper presents methods used to improve reflective dielectric film color pictures. These changes include improvements in color purity, increased brightness, and elimination of any light absorption within the film layers. The color picture is fabricated by varying the silicon dioxide film thicknesses across a silicon wafer and coating the entire wafer with a thin layer of silicon nitride. In addition to the demonstration of fabricated color pictures, we also present more detailed calculation of basis colors and provide details of the fabrication process.

© 2004 Optical Society of America

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References

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  12. B Lindbloom �??XYZ to RGB,�?? <a href="http://www.brucelindbloom.com">http://www.brucelindbloom.com</a>.

Color in Electronic Displays (1)

D. Post, �??Colorimetric measurement, calibration, and characterization of self-luminous displays,�?? Color in Electronic Displays (Plenum Press, 1992).

J. Imaging Science (1)

H. Kang, �??Water-based ink-jet. II. Characterization,�?? J. Imaging Science 35, 189-194 (1991).

Journal of Materials Education (1)

A. R. Hawkins, R. Wang, M. Lowther, and S. M. Schultz, �??Teaching Microfabrication Based Materials Processing Using Color Pictures From Dielectric Films,�?? Journal of Materials Education 26, (2004 accepted).

Nature (1)

M. Gratzel, �??Material Science - Ultrafast colour displays,�?? Nature 575-576 (2001).
[CrossRef] [PubMed]

Opt. Express (1)

Pro. Of the IS&T Annual Conference (1)

B. Thomas, �??Preserving information having permanent value, simple but not easy,�?? Pro. Of the IS&T Annual Conference 200-203 (1996).

Proc. SPIE CR61 (1)

P. Adelstein, �??Standards on the permanence of recording materials,�?? Proc. SPIE CR61, 155-175 (1996).

Res. and Appl. (1)

Aaron Hawkins, R. Wang, G. Sanber, J. Beutler, and S. Schultz, �??Color Pictures Using Dielectric Films,�?? Color Res. and Appl. (accepted).

SID Digest of Technical Papers (1)

H. Pettersson, T. Gruszecki, L. H. Johansson, A. Norberg, M. O. M. Edwards, and A. Hagfeldt, �??Screen-printed electrochromic displays based in nanocrystalline electrodes,�?? SID Digest of Technical Papers 123 (2002).

Other (3)

E. Hecht and A Zajac, Optics (Addison-Wesley, 1975).

J. Walker, �??Colour rendering of spectra,�?? (1996), http://www.fourmilab.ch/documents/specrend/

B Lindbloom �??XYZ to RGB,�?? <a href="http://www.brucelindbloom.com">http://www.brucelindbloom.com</a>.

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Figures (8)

Fig. 1.
Fig. 1.

Illustration of light interaction with a thin-film system.

Fig. 2.
Fig. 2.

Reflectance plot R(λ) for an oxide depth of 360 nm with 5 thicknesses of nitride coating ranging from no nitride up to 80nm of nitride..

Fig. 3.
Fig. 3.

Colors produced by a thin layer of silicon dioxide as a function of thickness both (a) without and (b) with a 60nm thick layer of silicon nitride.

Fig. 4.
Fig. 4.

(a) The fraction of the power reflected, and (b) the color as a function of film thickness for a silicon nitride film on silicon at a viewing angle of 18°.

Fig. 5.
Fig. 5.

Pixel layout.

Fig. 6.
Fig. 6.

(a) The RGB parameters as a function of oxide thickness without a silicon nitride layer and (b) with a 60nm thick layer of silicon nitride, where the actual basis colors are shown.

Fig. 7.
Fig. 7.

Illustration of the basic fabrication process.

Fig. 8.
Fig. 8.

Dielectric color pictures fabricated with (a) just silicon dioxide on silicon and (b) silicon dioxide and silicon nitride on silicon.

Tables (1)

Tables Icon

Table 1. Example of area calculations to produce the colors shown in Fig. 5(a).

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