| 摘要 |
PURPOSE:To remove ionic impurities in liquid crystals and to improve operation characteristics and reliability by communicating the opening parts of two cases, and injecting the liquid crystals from the 2nd case to the 1st case under application of DC voltage to the electrodes of the 2nd case. CONSTITUTION:Two sheets of substrates 2, 2' having electrodes are placed so as to face each other and are fixed to each other by means of adhesive agents 3 to form a case 9 having about 10mu spacing. An opening part 5 is provided thereto. Separately, substrates 12, 12' having electrodes 11, 11' over the entire surface are fixed by means of an adhesive agent 3 so as to face each other to form a case 19 having about 10mu spacing. Opening parts 15, 16 are provided thereto. The parts 5 and 16 are connected with a flow passage 10, and while DC voltage is applied between the electrodes 11 and 11' of the case 19, liquid crystals are injected through the part 15 and are conducted through the passage 10 into the case 9, whereafter the passage 10 is disconnected and the part 5 of the case 9 is sealed. The purity of the liquid crystals in the case 9 is then made higher than the purity prior to the injection, and the field effect liquid crystal display element contg. less ionic impurities is obtained. |
