Patent ID: 7619610
Filing Date: 2009-11-17
Classification: G02B,G09G

Abstract:
1. A display device comprising display unit cells having: a colored liquid; a first space capable of holding the colored liquid in a visible state; a second space connecting with the first space, shielded with a reflection plate, and capable of holding the colored liquid in an invisible state; and an interface surface area adjustment unit that relatively changes the interface surface area of the colored liquid held in the first space by increasing or decreasing the amount of the colored liquid held in the second space; wherein the interface surface area adjustment unit comprising: a pair of electrodes provided in the second space; and a solid medium in which electroosmostic flow of liquid occurs when subjected to an electric field in which the colored liquid can undergo electroosmosis, and the interface surface area adjustment unit moves the colored liquid between the first space and the second space through the solid medium in which electroosmostic flow of liquid occurs when subjected to an electric field by a voltage applied between the pair of electrodes.