Invention Grant
- Patent Title: Bistable polymer dispersed cholesteric liquid crystal displays
- Patent Title (中): 双稳态聚合物分散胆甾型液晶显示器
-
Application No.: US852589Application Date: 1997-05-07
-
Publication No.: US6061107APublication Date: 2000-05-09
- Inventor: Deng-Ke Yang , Zhijian Lu , J. William Doane
- Applicant: Deng-Ke Yang , Zhijian Lu , J. William Doane
- Applicant Address: OH Kent
- Assignee: Kent State University
- Current Assignee: Kent State University
- Current Assignee Address: OH Kent
- Main IPC: G02F1/1334
- IPC: G02F1/1334 ; G02F1/137 ; G02F1/1333 ; G02F1/1339
Abstract:
Polymer/cholesteric liquid crystal dispersions are provided in which the liquid crystal phase separated from the polymer matrix to form droplets. The cholesteric liquid crystals were positive dielectric anisotropic. At a zero field condition, the liquid crystal in the droplets was bistable, that is, the liquid crystal can be in either the reflecting planar state or the scattering focal conic state. When the liquid crystal 101 was in the planar texture, the helical axis of the liquid crystal was more or less perpendicular to the cell surface; colored light 105 was Bragg reflected. When the liquid crystal 101 was in the focal conic texture, the helical axis was more or less parallel to the cell surface, incident light was scattering 106 in the forward direction.
Public/Granted literature
- US5296311A Silicon carbide reinforced reaction bonded silicon carbide composite Public/Granted day:1994-03-22
Information query
IPC分类: