| 摘要 |
PROBLEM TO BE SOLVED: To obtain a liquid crystal display element which has excellent productivity and is capable of maintaining stable characteristics for a long period of time. SOLUTION: This element is constituted by disposing the alignment layers of a pair of electrodes provided with the alignment layers opposite to each other and holding antiferroelectric liquid crystals between these alignment layers. The alignment layers described above are deposited by imidization of polyimide precursors B contg. >=30 wt.% polyimide precursors A consisting of diaminodiphenyl methane or diaminodiphenyl ether and pyromellitic dianhydride and have a uniaxial alignment characteristic. The antiferroelectric liquid crystals are aligned by the alignment layers described above, by which the well alignment of the antiferroelectric liquid crystals with decreased defects is made possible and the stable alignment is obtd. The stable element characteristics are thus obtd. Since the alignment layers are obtd. in the manner described above, the utilization of a coating method, etc., is made possible, the production process is simple and the productivity is excellent. |
