Considerations on the use of ferroelectric ceramic light modulators with integrated driver circuits in display applications

Volkan H. Ozguz; Jian Ma; Sing H. Lee

doi:10.1117/12.205893

7 April 1995 Considerations on the use of ferroelectric ceramic light modulators with integrated driver circuits in display applications

Volkan H. Ozguz, Jian Ma, Sing H. Lee

Author Affiliations +

Proceedings Volume 2407, Projection Displays; (1995) https://doi.org/10.1117/12.205893
Event: IS&T/SPIE's Symposium on Electronic Imaging: Science and Technology, 1995, San Jose, CA, United States

Abstract

Lead Lanthanum Zirconate Titanate (PLZT--a transparent, ferroelectric ceramic) exhibits a large quadratic electro-optic effect, allows full modulation at relatively low voltages and is commercially available in wafer form up to 150 mm diameter. PLZT modulators can handle large amount of light power. They can be configured for either reflective or transmissive operation and the pixel switching speed is in the order of 500 ns. High contrast ratio (4000:1) and throughput (90%) can be accommodated. A new technique referred to as direct bonding that involves the bonding of a thin Si film containing circuits onto PLZT substrates allows a monolithic-like integration without affecting the performance of modulators or electronic circuits. Lenslet arrays and Wollaston prisms can be added to the input of the modulator array to improve the light throughput for unpolarized light. An electro-optic light deflector stage added to the output will improve the space-bandwidth product by trading off the speed of the PLZT modulator. The availability of an excellent modulator and the possibility for monolithic integration with Si circuits makes Si/PLZT technology attractive for high performance display applications.

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Volkan H. Ozguz, Jian Ma, and Sing H. Lee "Considerations on the use of ferroelectric ceramic light modulators with integrated driver circuits in display applications", Proc. SPIE 2407, Projection Displays, (7 April 1995); https://doi.org/10.1117/12.205893

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