Electro-optical glazing structures having scatthering and transparent modes of operation

Abstract

Electro-optical glazing structures having total-scattering and total-transparent modes of operation which are electrically-switchable for use in dynamically controlling electromagnetic radiation flow in diverse applications.

Description

technical field [0001] The present invention relates to electro-optic structures with fully diffusive and semi-transparent and fully transparent modes of operation, which are electrically switchable for dynamic control of electromagnetic radiation flow in various applications (such as electro-optic window glass structures), And improved methods and devices for producing said electro-optic structures in a large and uniform manner without defects, or for applications requiring obscurity (such as switchable privacy window glazing). Background technique [0002] The use of windows in homes, commercial buildings, and vehicles alike is well known. The reasons for providing windows in such structures and systems are directly related to the functions performed. For example, window structures provide ventilation, lighting, a sense of space, and access to the outdoors. Windows made of glazing (eg, glass materials) also allow selective transmission of electrom...

AI Technical Summary

Problems solved by technology

This field often causes the problem of electrical short circuit. In order to avoid short circuit, the industry uses a medium-intensity switching electric field. However, especially at large skew angles, the liquid crystal molecules close to the polymer network do not correspond to a medium switching field, resulting in strong blur

[0029] The third item is that it is difficult to make the plate size larger for PSCT-based devices. In order to make the device larger, the same lamination technology cannot be used when manufacturing PDLC, because when the PSCT material is basically in a liquid glue state, the glass substrate itself is Used to support the PSCT structure

[0030] The fourth item is that it is difficult to manufacture a large-sized uniform PSCT device, because this stacking method cannot be used, but a filling method is required, but when the liquid crystal is filled into a large-sized plate, the flow stripes of the liquid crystal and the polymer mixture are conspicuous The labeling of , therefore, the resulting PSCT device appears highly inhomogeneous

[0031] Finally, the cost of glass substrates coated with a conductive tin oxide layer is very expensive when using PSCT-based technology, and the cost of plastic substrates coated with a conductive tin oxide layer is very expensive when using PDLC technology. High price of electro-optic devices based on PDLC and PSCT technology

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