腕時計液晶セル用編光数の信頼性について

概要

論文の詳細を見る
Film polarizer for the L.C.D. watch is generally chosen from a large selection of commercially ones. The most common type of film polarizer used in the L.C.D. watch is currently sandwich type and has iodine polarizing elements. So we mainly chose this type of film polarizer as test samples and tested them from the view point of stability. From the result of this test, we decided the test conditions for the evaluation of film polarizer for the L.C.D.watch. 1. Dry heat resistance 70℃ 48 hours 2. Heat shock resistance -10℃↔+60℃ 30 minutes each 10 cycle 3. Low temperature resistance -40℃ 48 hours 4. U. V. resistance 5,500℃K, 40,000 Lux, 30℃, 1250 hours 5. Humidity resistance 96%R.H. 40℃ 480 hours Then we examined the relation between the test conditions and normal use conditions of the L.C.D. watch which is water resistant for usual wear, by comparing the polarizing properties. Finally we were able to estimate the span of life of film polarizer used in the L.C.D. watch.
社団法人日本時計学会の論文
1980-06-20