Patent ID: 9091899
Filing Date: 2015-07-28
Classification: G02F,Y10T

Abstract:
1. A light-controlling device, comprising: a first substrate and a second substrate; wherein the first and second substrates are transparent; a partition wall separating the first and second substrates to define a cell having an area; a light-adjustment medium disposed within the cell between the first and second substrates, the light-adjustment medium containing a plurality of charged particles; a first electrode on the first substrate and within the cell; and a second electrode on the second substrate and within the cell, wherein the first electrode has a grooved surface with a projection of a first height and a recess with a first depth, wherein a diameter of each charged particle in the plurality of charged particles is less than the first height and less than the first depth of the grooved surface, and wherein light is transmitted through the first substrate and the second substrate when an electric field is applied such that the plurality of charged particles are moved to the first electrode, and wherein the light is shielded when an electric field is applied such that the plurality of charged particles are distributed over the second electrode.