Piezo electrophoretic display
View Patent ↗The invention is directed to a variety of designs of piezo electrophoretic displays which may be driven without connecting to a power source. The piezo-electrophoretic display comprises an electrophoretic layer, a conductor layer, and a layer of piezo material. The processes for manufacturing the piezo electrophoretic displays are also provided.
1. A piezo-electrophoretic display comprising: (a) a first layer of piezo material sandwiched between a first conductor layer and a second conductor layer, (b) a second layer of piezo material sandwiched between a third conductor layer and a fourth conductor layer and (c) an electrophoretic layer sandwiched between the second conductor layer and the third conductor layer.
2. The display of claim 1 , wherein the first conductor layer and the fourth conductor layer are connected.
3. The display of claim 1 , wherein the electrophoretic layer is microcapsule-based.
4. A piezo-electrophoretic display comprising: an electrophoretic layer sandwiched between a first conductor layer and a second conductor layer, a layer of piezo material sandwiched between a third conductor layer and a fourth conductor layer, the first conductor layer and the third conductor layer are connected, and the second conductor layer and the fourth conductor layer are connected.
5. A piezo-electrophoretic display comprising an electrophoretic layer sandwiched between a first conductor layer and a third conductor layer, a layer of piezo material sandwiched between a second conductor layer and the third conductor layer, wherein the first conductor layer and the second conductor layer are connected.
6. A piezo-electrophoretic display comprising a layer of piezo material sandwiched between a first conductor layer and a second conductor layer, and an electrophoretic layer sandwiched between the second conductor layer and a third conductor layer, wherein the first conductor layer and the third conductor layer are connected.
7. A piezo-electrophoretic display comprising an electrophoretic layer, a conductor layer, and a layer of piezo material, wherein the electrophoretic layer is microcup-based.
8. A U-shaped piezo-electrophoretic display comprising an electrophoretic layer sandwiched between a first conductor layer and a second conductor layer, and a layer of piezo material which, on one side, is in contact with the first conductor layer and the second conductor layer, and on the other side, is in contact with a third conductor layer, wherein the layer of the piezo material and the third conductor layer are folded into a U-shape.
9. The display of claim 8 , wherein the electrophoretic layer is unfolded.
10. The display of claim 8 , wherein the electrophoretic layer is folded.
11. The display of claim 8 , wherein the electrophoretic layer is microcup-based.
12. The display of claim 8 , wherein the electrophoretic layer is microcapsule-based.