公开(公告)号：US5587821A

公开(公告)日：1996-12-24

申请号：US363377

申请日：1994-12-23

申请人： Hiroko Nakanishi ,  Hiroshi Ohnishi

发明人： Hiroko Nakanishi ,  Hiroshi Ohnishi

IPC分类号： G02F1/137 ,  G02F1/133 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/1337 ,  C09K19/02

CPC分类号： G02F1/133634

摘要： It is an object of the invention to improve the viewing angle properties of a liquid crystal display device by controlling the state of orientation of liquid crystal molecules. The liquid crystal display device is constructed with an liquid crystal display element disposed between a pair of polarizing plates, and with phase difference plates disposed between each polarizing plate and the liquid crystal display element. The phase difference plates are selected so that nx.gtoreq.nz>ny is satisfied and the Nz value is in the range of 0.ltoreq.Nz.ltoreq.0.5. The liquid crystal display element is constructed by placing a liquid crystal layer between substrate members prepared by forming transparent electrodes and orientation films in the pair of light transmitting plates, and the liquid crystal layer sandwiched between the transparent electrodes is used as picture elements. One picture element contains mixed liquid crystal molecules with different pretilt angles controlled by a light irradiation step after application and baking of the film material for the orientation films As a result, it is possible to obtain excellent display quality in both of the opposing viewing angle directions.

摘要翻译： 本发明的目的是通过控制液晶分子的取向状态来改进液晶显示装置的视角特性。 液晶显示装置由配置在一对偏振片之间的液晶显示元件构成，并且配置在各偏光板与液晶显示元件之间的相位差板。 选择相位差板使得nx> n = nz> ny并且Nz值在0≤Nz≤0.5的范围内。 液晶显示元件是通过在通过在一对透光板中形成透明电极和取向膜而制备的衬底构件之间放置液晶层而构成的，并且夹在透明电极之间的液晶层用作像素。 一个图像元素包含具有不同预倾角的混合液晶分子，其通过在施加和烘焙用于取向膜的薄膜材料之后的光照射步骤控制。结果，可以在相对视角方向上获得优异的显示质量 。