IPC분류정보
국가/구분 |
United States(US) Patent
공개
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0736815
(2013-01-08)
|
공개번호 |
US-0175480
(2013-07-11)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
0 |
초록
The invention is directed to an electrophoretic fluid which can improve display performance such as switching speed, vertical bistability and the ghosting effect, and also reduce display defects. The electrophoretic fluid comprises charged pigment particles dispersed in a mixture of isoparaffins.
대표청구항
▼
1. An electrophoretic fluid comprising charged pigment particles dispersed in a mixture of isoparaffins. 2. The fluid of claim 1, wherein said mixture of isoparaffins comprises isoparaffins having 8, 9 and 10 carbon atoms. 3. The fluid of claim 2, wherein said mixture of isoparaffins comprises isopa
1. An electrophoretic fluid comprising charged pigment particles dispersed in a mixture of isoparaffins. 2. The fluid of claim 1, wherein said mixture of isoparaffins comprises isoparaffins having 8, 9 and 10 carbon atoms. 3. The fluid of claim 2, wherein said mixture of isoparaffins comprises isoparaffins having less than 8 carbon atoms and isoparaffins having more than 10 carbon atoms, the total percentage of which is less than about 20%. 4. The fluid of claim 2, wherein said mixture of isoparaffins comprises isoparaffins having less than 8 carbon atoms and isoparaffins having more than 10 carbon atoms, the total percentage of which is less than about 10%. 5. The fluid of claim 2, wherein said mixture of isoparaffins comprises isoparaffins having less than 8 carbon atoms and isoparaffins having more than 10 carbon atoms, the total percentage of which is less than about 5%. 6. The fluid of claim 2, wherein the mixture of isoparaffins comprises about 10% to about 30% of the isoparaffin having 8 carbon atoms. 7. The fluid of claim 6, wherein the mixture of isoparaffins comprises about 60% to about 80% of the isoparaffin having 9 carbon atoms. 8. The fluid of claim 2, wherein the mixture of isoparaffins comprises a total percentage of the isoparaffin of 8 carbon atoms and the isoparaffin of 9 carbon atoms greater than about 90%. 9. The fluid of claim 1, wherein said mixture of isoparaffins comprises isoparaffins having 7, 8 and 9 carbon atoms. 10. The fluid of claim 9, wherein said mixture of isoparaffins comprises isoparaffins having less than 7 carbon atoms and isoparaffins having more than 9 carbon atoms, the total percentage of which is less than about 20%. 11. The fluid of claim 9, wherein said mixture of isoparaffins comprises isoparaffins having less than 7 carbon atoms and isoparaffins having more than 9 carbon atoms, the total percentage of which is less than about 10%. 12. The fluid of claim 9, wherein said mixture of isoparaffins comprises isoparaffins having less than 7 carbon atoms and isoparaffins having more than 9 carbon atoms, the total percentage of which is less than about 5%. 13. The fluid of claim 9, wherein said mixture of isoparaffins comprises about 10% to about 30% of the isoparaffin having 7 carbon atoms. 14. The fluid of claim 13, wherein said mixture of isoparaffins comprises about 30% to about 70% of the isoparaffin having 8 carbon atoms. 15. The fluid of claim 14, wherein said mixture of isoparaffins comprises about 10% to about 30% of the isoparaffin having 9 carbon atoms. 16. The fluid of claim 9, wherein said mixture of isoparaffins comprises a total percentage of the isoparaffin of 7 carbon atoms, the isoparaffin of 8 carbon atoms, and the isoparaffin of 9 carbon atoms greater than about 90%. 17. The fluid of claim 1, wherein the mixture of isoparaffins further comprises a trace amount of aromatic species. 18. The fluid of claim 1, wherein the mixture of isoparaffins further comprises one or more linear or cyclic hydrocarbons. 19. The fluid of claim 1, further comprising a charge control agent. 20. The fluid of claim 1, comprising one type of charged pigment particles. 21. The fluid of claim 1, comprising two types of charged pigment particles of contrasting colors and carrying opposite charge polarities. 22. The fluid of claim 1, further comprising uncharged or lightly charged neutral buoyancy particles. 23. The fluid of claim 22, wherein the uncharged or lightly charged neutral buoyancy particles are formed from a material selected from the group consisting of polyacrylate, polymethacrylate, polystyrene, polyaniline, polypyrrole, polyphenol, and polysiloxane. 24. The fluid of claim 22, wherein the uncharged or lightly charged neutral buoyancy particles are formed from a material selected from the group consisting of poly(pentabromophenyl methacrylate), poly(2-vinylnapthalene), poly(naphthyl methacrylate), poly(alpha-methystyrene), poly(N-benzyl methacrylamide), and poly(benzyl methacrylate).
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