发明授权
- 专利标题: Surface mode liquid crystal device and method of making a liquid crystal device
- 专利标题(中): 表面模式液晶装置及其制造方法
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申请号: US08727972申请日: 1996-10-09
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公开(公告)号: US06222605B1公开(公告)日: 2001-04-24
- 发明人: Martin David Tillin , Edward Peter Raynes , Michael John Towler
- 申请人: Martin David Tillin , Edward Peter Raynes , Michael John Towler
- 优先权: GB9521043 19951013
- 主分类号: G02F1139
- IPC分类号: G02F1139
摘要:
A surface mode liquid crystal device is made by forming a cell containing a mixture of a liquid crystal and a pre-polymer. An electric field is applied across the cell to arrange the liquid crystal in a predetermined surface mode state, such as the V state in the case of a pi-cell configuration. The liquid crystal is held in this state by the field while the pre-polymer is polymerized or cross-linked, for instance by ultraviolet irradiation. The electric field is then removed. The polymer stabilizes the predetermined surface mode state, for instance preventing relaxation of the V state to twist or splay state in the pi-cell configuration.
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