| 摘要 |
<p>PURPOSE:To obviate the narrowness of a visual angle by lapping a lower substrate and upper substrate at <90 deg. angle between the lapping directions of both substrates so that the twist direction of liquid crystal molecules is made in a left-hand thread direction when the direction from the lower substrate to the upper substrate is designated to be an advancing direction. CONSTITUTION:The lower substrate 2 and the upper substrate 1 are so lapped that the angle 19 between the lapping direction 4 of the former and the lapping direction 3 of the latter is <90 deg.. The twist direction of the liquid crystal molecules rotates in the left-hand thread direction 25 when the direction from the substrate 2 to the substrate 1 is designated to be the advance direction. Approximately equal contrast is thus obtd. when viewed from any of the four directions and the narrowness of the visual angle is obviated. The visual angle is effectively increased by using the material having <=0.6 the product of the anisotropy DELTAn of the refractive index of the liquid crystal material and the cell thickness of the panel.</p> |
