Patent · US Active

Electro-optic display

US8233212B2 · kind B2 · utility

4Cited by
66References
19Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 10, 2011
Grant dateJul 31, 2012
Priority date—
Expiry dateMar 10, 2031

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T137/0391
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An electro-optic display includes a “matrix” for confining moving elements of the display (e.g., rotating or twisting elements). The matrix (or at least the viewable portions thereof) may have a high reflectivity, comparable to that of white paper. This results in an overall “whiter” or brighter display. The matrix may include channels to facilitate inter-cell fluid transport and high-density element packing. In some cases, the matrix elements provide a hexagonal arrangement of cells for holding the rotating elements. The rotating elements of the display may be electrically and optically anisotropic hemispherically coated spheres. The hemispherical coating typically provides the necessary charge to create electrical anisotropy.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.