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A new raster based laser display with fast electro-optical deflection

 
: Vohsbeck-Petermann, R.; Hinkov, V.

:

Wu, M.H. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Projection Displays III : 10-12 February 1997, San Jose, California
Bellingham, WA: SPIE, 1997 (Proceedings of SPIE 3013)
ISBN: 0-8194-2424-2
pp.40-46
English
Conference Paper
Fraunhofer IPM ()
Fraunhofer IGD ()
colour; deflection projection; domain inversion; large displays; laser; prism

Abstract
The market of television displays in an area of outstanding economical importance due to its annual production volume of more than 100 million TV tubes. 15 million TV sets were produced in Western Europe in 1993 alone. On the other hand the materials used in the tubes and the energy consumption for production and during operation are issues of great ecological importance. It is therfore of social and political interest to achieve simpler and ecologically compatible solutions through new technologies and innovative technical concepts. Displays with a diagonalof one meter ore more for TV and computer monitor applications operating in accordance with HDTV or higher formats require technology that is either not available or too costly. Conventional television tubes would not only have to be very large, the high internal pressure would entail an extraordinary mechanical stability of the tube, resulting in a notable increase in weight. The most promising technique for a high brightness, high definition and large area displays are based on the direct projection with laser beams. Presently not satisfying solutions are available for 2 basic parts of this technique: the low-cost laser sources needed for a colour TV projection and the simple deflection system delivering the required number of pixels. There is a world-wide effort concerning the development of suitable light sources. We propose the development of a deflection system based on a novel simple electro-optical deflector fabricated in LiNbO3.

: http://publica.fraunhofer.de/documents/PX-26228.html