| abstract |
【Task】 High-definition image quality in which the occurrence of display defects due to fluctuations in the initial alignment direction of the liquid crystal alignment control film in the IPS type liquid crystal display device is reduced, stable liquid crystal alignment is realized, mass productivity is improved, and the contrast ratio is increased. And a liquid crystal display device having the same. [Solution] A liquid crystal alignment control film 109 at least one of which is disposed between a pair of transparent substrates 101 and 102; and an electric field formed on one of the pair of substrates and having a component substantially parallel to the substrate surface. Electrode groups 103 and 105 for applying voltage to the electrodes, a plurality of active elements connected to these electrodes, a liquid crystal layer 110 ′, and an optical element formed on at least one of the pair of substrates according to the molecular alignment state of the liquid crystal layer. An optical means 114 for changing characteristics, wherein at least one of the orientation control films 109 is made of photoreactive polyimide and / or polyamic acid, and the orientation control film ability is provided by irradiating substantially linearly polarized light. ing. [Selection diagram] Fig. 1 |