LIQUID INJECTING METHOD FOR ELECTROOPTIC ELEMENT

摘要

PURPOSE:To shorten the time required for injecting liquid by decreasing the area where the liquid required for an electrooptic display contacts gas during the time when the gas in a cell is evacuated by the reduction of pressure. CONSTITUTION:The liquid is moved toward a vessel 6 for storage from a vessel 5 for injection and is drawn into the mid-way of a pipeline 7 or the vessel 6 in a stage for discharging the gas in the cell 1 by the pressure reduction. The surface area of the liquid under the reduced pressure in this state is extremely small and the evaporation of a low boiling compd. from the surface is small. The fluctuation of the compsn. of the liquid is extremely little. The liquid is supplied from the vessel 6 into the vessel 5 for injection and the injec tion port of the cell is allowed to contact the liquid filled in the vessel 5 in the stage of injecting the liquid into the cell. The pressure reduction is then released and the injection is completed by utilizing the atm. pressure. The expos ing area of the liquid is made small in this case to quickly execute the injection.