Patent ID: 8350783
Filing Date: 2013-01-08
Classification: G02B,G09G

Abstract:
1. An electrowetting element for a display device, wherein the electrowetting element comprises: a) a radiation valve comprising a first fluid and a second fluid immiscible with the first fluid, wherein the first and second fluids are configurable to change a characteristic of radiation passing through at least one of said first and second fluids; and b) an electrically switchable part switchable between a reflective mode for reflecting radiation incident on the switchable part and towards said radiation valve, and a transmissive mode for transmitting radiation incident on the switchable part through said switchable part and towards said radiation valve, wherein said switchable part includes a reflective fluid and a non-reflective fluid immiscible with the reflective fluid, the reflective and non-reflective fluids being configurable to switch said reflective and non-reflective fluids between the transmissive mode and the reflective mode.