Memory display

Power input Processor Working memory Mass memory Display Dimensions (W X H X D) Weight ... 

LiNbOj Piezoelectric electrooptic Optical memory displays acoustic devices wave guides lasers holography... 

The brothers Jacques and Pierre Curie are credited with the discovery of piezoelectricity in a number of hemiedric crystals (Curie and Curie, 1880). Today, piezoelectrics are utiUzed in acousto-electronic devices and sensors based on bulk and surface acoustic waves, piezomechanical sensors to monitor pressure, power, and acceleration, as actuators for micropositioning devices, band pass filters with low insertion losses, as electro-optic devices for optical memories, displays for high-definition televisions, and possibly as transparent piezoelectric speaker membranes as well as miniaturized piezoelectric transformers and motors. As the classic piezoelectric material is a-quartz, the basic relationships are detailed below using it as a model structure. Further details on the piezoelectric properties of quartz, and of its history, discovery and utilization, are available elsewhere (Ballato, 2009). 

Sensors dielectric amplifiers memory devices Memory devices acoustic devices Optical memory displays... 

Consequently, the construction of spin transition ID, 2D or 3D coordination polymers has attracted attention in recent years, and may form the base in new devices for memory, display and other magneto-optical applications [71-79],... 

In another optical memory display scheme the transformation from the planar to the focal conic texture is achieved thermally [72]. An infrared laser beam is used to heat a small spot of the liquid crystal layer above the cholesteric-isotropic transition temperature. When cooling down, this region spontaneously adopts the scattering focal conic texture. The initial transparent state is restored by applying an a.c. field as described above. 

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