Claims
- 1. An electrophoretic display, comprising:
a microcapsule including a liquid phase dispersion medium and a plurality of electrophoretic particles; a first substrate having a first electrode; a second substrate facing the first substrate, and having a second electrode, the microcapsule being sandwiched between the first and the second substrates, wherein the microcapsule is in contact with at least one of the substrates, and has a flat shape at the interface with the one of the substrates, and wherein the electrode is capable of applying a voltage to the microcapsule.
- 2. An electrophoretic display of claim 1, wherein the plurality of electrophoretic particles comprises a first particle, and a second particle providing a color different to that of the first particles.
- 3. An electrophoretic display of claim 2, wherein the liquid phase dispersion medium has transparency.
- 4. An electrophoretic display of claim 1, wherein the plurality of electrophoretic particles comprises first and second particles, one of which is positively charged with electricity and the other of which is negatively charged.
- 5. An electrophoretic display of claim 1, further comprising a binder, which is positioned between the substrates, for immobilizing the microcapsules.
- 6. An electrophoretic display of claim 1, wherein the electrode of one of the first and the second substrates is divided into a plurality of parts, voltages are independently applied to each part, and the microcapsule is positioned between the parts.
- 7. An electrophoretic display of claim 6, wherein the microcapsule is in contact with each of the parts and has a flat shape at the interface with each of the parts.
- 8. An electrophoretic display, comprising:
a microcapsule including a liquid phase dispersion medium and electrophoretic particles; means for applying voltages to the microcapsules, and means for applying a pressure to the microcapsule while supporting the microcapsule, the pressure being applied to the microcapsule in a pressing direction, whereby a part of the microcapsule becomes flat at the interface thereof and a length of the microcapsule in the pressing direction is shorter than that in a vertical direction thereof.
- 9. An electrophoretic display of claim 8, wherein the liquid phase dispersion medium has transparency.
- 10. An electrophoretic display of claim 9, wherein the plurality of electrophoretic particles comprising a first and second particles, one of which is positively charged and the other of which is negatively charged.
- 11. An electrophoretic display of claim 10, further comprising a means for immobilizing the microcapsule.
- 12. An electrophoretic display, comprising:
a microcapsule including a liquid phase dispersion medium and electrophoretic particles; means for applying voltages to the microcapsule, which is capable of applying different voltages to the microcapsule at a time; and means for applying a pressure to the microcapsule while supporting the microcapsule, the pressure being applied to the microcapsule in a pressing direction, whereby a part of the microcapsule becomes flat at the interface thereof and a length of the microcapsule in the pressing direction is shorter than in a vertical direction thereof.
- 13. An electrophoretic display, comprising:
a microcapsule including a liquid phase dispersion medium, and at least two types of electrophoretic particles; a first electrode; and a second electrode facing the first substrate and comprising first and second electrically separated sub-electrodes, the microcapsule having a partially flat shape and positioned between the first electrode and the first and second sub-electrodes of the second electrode, and the two types of electrophoretic particles having color characteristics and being charged with different polarities.
- 14. A method of producing an electrophoretic display, including the steps of:
providing at least two types of electrophoretic particles having different color characteristics and charged with different polarities; forming a microcapsule by inserting therein and sealing therein a liquid phase dispersion medium and the two types of electrophoretic particles; forming a first electrode; forming a second electrode comprising first and second electrically separated sub-electrodes; arranging the first and second electrodes to face each other; housing the microcapsule and a liquid binder between the first and second electrode; applying pressure between the first and second electrodes so that the microcapsule is deformed to have a partial flat shape in a sectional plane along a first direction perpendicular to parallel planes of the first and second electrodes and the partially flatted microcapsule is contacted to the first and second sub-electrode of the second electrode and the first electrode.
- 15. A method of producing an electrophoretic display as set forth in claim 14, wherein:
said binder comprises a photocuring or heat curing binder and further including a step of giving light or heat corresponding to said binder near the microcapsule flattened by said pressure to cause said binder to cure.
- 16. A method of producing an electrophoretic display as set forth in claim 14, further including a step of bringing a pressure roller into contact with an outer surface of said first or second substrates and making said pressure roller rotate so as to successively flatten a plurality of microcapsules.
- 17. An electrophoretic display, comprising:
a first substrate comprising a first electrode; a second substrate comprising a second electrode arranged in parallel with said first electrode; and a microcapsule containing a dispersion comprising a liquid phase dispersion medium and at least one kind of electrophoretic particles, arranged between said first and second electrodes so as to contact each electrode, and deformed in a flat shape along said first electrode at least at said first electrode side.
- 18. An electrophoretic display as set forth in claim 17, wherein said microcapsule is formed in a flat shape along said second electrode at said second electrode side.
- 19. A method of producing an electrophoretic display having a microcapsule containing a dispersion comprising a liquid phase dispersion medium and at least one kind of electrophoretic particles, a first substrate comprising a first electrode, and a second substrate comprising a second electrode,
including the steps of;
housing said microcapsule and a liquid binder between said first and second substrates so that said microcapsule faces said first and second electrodes via said binder; applying pressure to said first or second substrate to flatten said microcapsule between said substrates; and causing said binder near said microcapsule flattened by said pressure to cure so as to fix said flattened microcapsule to at least said first substrate.
- 20. A method of producing an electrophoretic display as set forth in claim 19, wherein:
said binder comprises a photocuring or heat curing binder and further including a step of giving light or heat corresponding to said binder near the microcapsule flattened by said pressure to cause said binder to cure.
- 21. A method of producing an electrophoretic display as set forth in claim 19, further including a step of bringing a pressure roller into contact with an outer surface of said first or second substrates and making said pressure roller rotate so as to successively flatten a plurality of microcapsules.
Priority Claims (1)
Number |
Date |
Country |
Kind |
JP11-059351 |
Mar 1999 |
JP |
|
Parent Case Info
[0001] This is a Continuation-in-Part of application Ser. No. 09/674,679 filed Nov. 3, 2000, which in turn is a National Stage Entry, which claims the benefit of PCT/JP00/01351 filed Mar. 6, 2000. The entire disclosure of the prior applications is hereby incorporated by reference herein in its entirety.
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
09674679 |
Nov 2000 |
US |
Child |
10462589 |
Jun 2003 |
US |