Electrophoretic image display device

Details Electrophoretic image display device Electrophoretic image display device

G - Physics

02

F

345/6

G02F 1/01 (2006.01) G02B 26/02 (2006.01) G02F 1/167 (2006.01) G02F 1/315 (2006.01) G03G 17/04 (2006.01)

Patent

CA 1152617

PHA 20 910 c 18 ABSTRCT: A light transmissive electrophoretic image dis- play device is provided, which device comprises a light transmissive first panel element and a light transmissive second panel element. A light transmissive first elec- trode and a light transmissive second electrode are dis- posed on the opposing surfaces of the first and second panel element respectively. A light transmissive fluid containing colloidal particles having a charge of one polarity is held between the plate elements. The refrac- tive indices of the fluid and the particles differ from each other and the second panel element has a refractive index greater than the refractive index of the fluid. Illumination received in the second panel element is totally internally reflected at the regions free of par- ticles and illumination is coupled into the device at the regions where particles are present. The device can also be used in a reflective mode in order to provide projec- tion of the image formed by the device to a viewing screen.

356899

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