An active-matrix liquid crystal display device employing the in-plane switching mode in which an electric field substantially parallel to the substrate surface is applied to the liquid crystals, characterized by weak torsional anchoring of the liquid crystal molecules (6) and the alignment layer surface at the liquid crystal/alignment layer interface to an extent that the extrapolation length which expresses the strength of said torsional anchoring will become not less than 10% of the gap between the substrates. For obtaining such weak torsional anchoring, an organic alignment layer (5) comprising a polymer and/or oligomer having long-chain alkylene and/or fluoro groups, or an inorganic alignment layer formed by oblique evaporation technique, or a photo-reactive alignment layer formed by linearly polarized light irradiation is used.
一种采用平面内开关模式的有源矩阵液晶显示装置,在这种模式下,电场基本上平行于基板表面施加到液晶上,其特征是液晶分子(6)和配向层表面在液晶/配向层界面处的扭转锚定很弱,以至于表示所述扭转锚定强度的外推长度将不小于基板之间间隙的 10%。为获得这种微弱的扭转锚定,可使用由具有长链亚烷基和/或
氟基团的聚合物和/或低聚物组成的有机配位层 (5),或通过斜蒸发技术形成的无机配位层,或通过线偏振光照射形成的光反应配位层。