초록 ▼

A hermetic electro-optic display cell has an enclosure for a liquid electrolyte comprising a wall of a plastics material, a lower inorganic base and an upper window both of which are impervious to the electrolyte. Impervious gasket means seals at least the lower edges of the wall to the base when cl

A hermetic electro-optic display cell has an enclosure for a liquid electrolyte comprising a wall of a plastics material, a lower inorganic base and an upper window both of which are impervious to the electrolyte. Impervious gasket means seals at least the lower edges of the wall to the base when clamped together. To render the wall hermetic an inorganic coating is provided around the exterior faces and along the edges at least as far as the gasket means. Metal is the preferred coating except for transparent faces where silica may be employed.

대표청구항 ▼

A hermetic electro-optic display cell having an enclosure for a liquid electrolyte, the enclosure comprising: side walls of a plastic moulded material; a lower inorganic base, substantially impervious to the electrolyte, upon which a plurality of display electrodes is disposed, within said side wall

A hermetic electro-optic display cell having an enclosure for a liquid electrolyte, the enclosure comprising: side walls of a plastic moulded material; a lower inorganic base, substantially impervious to the electrolyte, upon which a plurality of display electrodes is disposed, within said side walls; an upper window, also substantially impervious to the electrolyte, by way of which the display electrodes are view or projected; impervious gasket means for sealing the lower edge of said side walls to said base and for sealing said upper window to the upper edge of said side walls; clamp means for clamping said side walls, said upper window and said base together to effect a gasket seal; and an inorganic coating around the exterior of said side walls and along said side wall edges at least at said gasket means, which coating is sufficiently thick to render said walls substantially impervious to the electrolyte.