公开(公告)号：US07379144B1

公开(公告)日：2008-05-27

申请号：US09591437

申请日：2000-06-09

申请人： Jiuzhi Xue ,  Beth L. Ellis ,  Stephen H. Perlmutter ,  Charles Crandall

发明人： Jiuzhi Xue ,  Beth L. Ellis ,  Stephen H. Perlmutter ,  Charles Crandall

IPC分类号： G02F1/141

CPC分类号： G02F1/141 ,  G02F1/133723 ,  G02F1/133784 ,  G02F2001/133773 ,  G02F2203/30

摘要： An optical device includes a ferroelectric liquid crystal material. This optical device has a first and a second substrate. A first alignment treatment is applied to a surface of the first substrate, the first alignment treatment being intended to induce an orientation of at least a portion of the ferroelectric liquid crystal material along a first alignment direction with a first pretilt angle α1 with respect to a plane parallel to the first substrate. A second alignment treatment is applied to a surface of the second substrate, the second alignment treatment being intended to induce an orientation of at least another portion of the ferroelectric liquid crystal material along a second alignment direction with a second pretilt angle α2 with respect to a plane parallel to the second substrate. The optical device further includes an arrangement for securing the first substrate with respect to the second substrate in such a way that the surfaces of the first and second substrates onto which the first and second alignment treatments were applied, respectively, are spaced apart, generally parallel and facing each other. In addition, a projection of the first alignment direction onto the treated surface of the first substrate makes a non-zero angle Ω with respect to a projection of the second alignment direction onto the treated surface of the first substrate such that, the ferroelectric liquid crystal material being injected between the first and second substrates, the optical device is free of chevron structures without a need to otherwise apply an additional treatment to the optical device.

摘要翻译： 光学器件包括铁电液晶材料。 该光学装置具有第一和第二基板。 对第一衬底的表面施加第一取向处理，第一取向处理旨在沿着第一校准方向诱导至少一部分铁电液晶材料的取向，其中第一预倾斜角α1 相对于平行于第一基板的平面。 第二取向处理被施加到第二基板的表面，第二取向处理旨在使第二预倾斜角α2沿着第二对准方向感应强电介质液晶材料的至少另一部分的取向 相对于平行于第二基板的平面。 该光学装置还包括用于相对于第二基板固定第一基板的装置，使得分别施加有第一和第二对准处理的第一和第二基板的表面间隔开，大致平行 并相互面对。 此外，将第一取向方向投影到第一基板的处理表面上，相对于第二取向方向的投影，在第一基板的处理表面上形成非零角度Ω，使得铁电液晶 材料被注入在第一和第二基底之间，光学装置不含人字纹结​​构，而不需要另外对光学装置施加额外的处理。