Electrophoretic display device using a liquid crystal as a threshold device
Encapsulated liquid crystal and method Patent #: 4435047
ApplicationNo. 06/936180 filed on 12/01/1986
US Classes:349/166, Nonspacer particles significantly smaller than liquid crystal thickness (e.g., scattering centers, ferromagnetic particles, etc.)349/130, For perpendicular alignment349/23, Magnetic or pressure excitation349/86Microencapsulated or polymer dispersed liquid crystal
ExaminersPrimary: Corbin, John K.
Assistant: Gallivan, Richard F.
Attorney, Agent or Firm
International ClassesC09K 19/56 (20060101)
G06F 3/033 (20060101)
G02F 1/13 (20060101)
G02F 1/1334 (20060101)
G02F 1/137 (20060101)
Foreign Application Priority Data1985-12-02 JP
AbstractIn order to make it possible to be adapted to be used for an integrated liquid crystal panel having a built-in direct touch-entry enabling device, a liquid crystal material made by dispersing many needle-shaped magnetic substance particles respectively coated with a surface active agent in a well known liquid crystal substance and a method of making the same. The liquid material can be utilized in the form of many encapsulated liquid material units combined with one another. In case such encapsulated liquid crystal material is used for a liquid crystal device, it need not be sealed with glass or the like and can be directly applied to paint any required part and, even if the painted part is curved during the use, it can develop its performance.