New Principles of Organizing an Interactive Multi-channel Visual Information Flow by Display and Projective Means on The Basis of Ordered Crystalline 4-cyano-4-octyloxybiphenyl Microstructures in Borosiloxane Gels

The development of large collective screens in ordert to provide each viewer (group of jointly located viewers) with a visual information flow that is an image that is visible only to them (in their angular range relative to the screen) on the entire surface of the screen is a topical direction of investigations. This task can be considered as an alternative to dividing the screen into separate areas with different displayed images. It is important to provide the ability to adjust the mentioned angular ranges – the viewing area of the individual image. The ability to switch the display to normal collective viewing mode with a very high resolution is also essential option. To solve the assigned above task, constructive solutions are stated and liquid crystal (LC) materials are suggested. In addition, new solutions for the formation of a projection image of collective viewing are proposed. A design of the main display element (a pixel), which forms the spatial distribution of the light flux required to solve the problem is proposed. A similar pixel design of the translucent matrix projector is also developed. Microstructures of LC 4-cyano-4-octyloxybiphenyl (8OCB) of various (predefined) geometries in borosiloxane (BS) matrices are very promising. The abrupt cooling below the melting temperature (55 °С) leads to crystallization of LC and the obtained microstructures (from fractions to tens of microns) undergo long-term fixation. At first, the LC composite needs to be heated above melting temperature (at this stage the structures of oriented crystallites transfer into the LC phase) and oriented by applying an electric field spatially distributed according to some predetermined rule. Then, the oriented state can be fixed by cooling due to crystallization of the LC.