Multiple glazing with variable scattering by liquid crystals and its method of manufacture

摘要

A multiple glazing with variable scattering by liquid crystals includes first and second flat float glass sheets sealed on the edge of their internal faces by a sealing joint, in particular made of a given sealing material, in particular essentially organic, first and second electrodes, and a layer of liquid crystals with an average thickness E between 15 and 60 μm inclusive of these values and incorporating spacers. The thickness A of each of the first and second glass sheets is less than or equal to 5.5 mm, and each of the internal faces coated with the first and second electrodes has a dioptric defect score, expressed in millidioptres, of less than 12E/15 where the thickness E of the liquid crystals is in μm.

主权项

1. A multiple glazing with variable scattering by liquid crystals comprising:
first and second flat float glass sheets sealed on the edge of their internal faces by a sealing joint; on the internal faces of the first and second glass sheets, first and second electrodes in the form of transparent electrically conductive layers provided with a power supply; on the first and second electrodes, a layer of liquid crystals adapted to alternate reversibly between a transparent state and a translucent state by application of an alternating electric field, which layer has an average thickness E from 15 to 60 μm and incorporates spacers, wherein a thickness of each of the first and second glass sheets is less than or equal to 5.5 mm, and wherein each of the internal faces coated with the first and second electrodes has a dioptric defect score, expressed in millidioptres, of less than 12E/15 where the thickness E of the liquid crystals is in μm.