IP Library Granted Patent US 7,855,829
Granted Patent B2
US 7,855,829 · App. 12/555,465 · Granted Dec 21, 2010

Particles for display, particle dispersion for display, display medium and display device

Assignee: Fuji Xerox Co., Ltd.
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Quick Facts
Patent No.
US 7,855,829
App. No.
12/555,465
Granted
Dec 21, 2010
Kind
B2
Abstract

Particles for display including color particles and a silicone polymer attached to a surface of the color particles, the silicone polymer including, as copolymerization components, a first silicone chain component, a second silicone component including a silicone chain that is shorter than a silicone chain of the first silicone component, and a component including a charging group.

Claims (19)

1. Particles for display comprising color particles and a silicone polymer attached to a surface of the color particles, the silicone polymer comprising, as copolymerization components, a first silicone chain component, a second silicone component comprising a silicone chain that is shorter than a silicone chain of the first silicone component, and a component comprising a charging group.

2. The particles for display according to claim 1 , wherein at least one of the first silicone chain component or the second silicone component comprises a silicone macromer component.

3. The particles for display according to claim 1 , wherein a ratio of silicone chain length of the first silicone chain component to the second silicone chain component is from about 3:1 to about 20:1.

4. The particles for display according to claim 1 , wherein a ratio of weight of the first silicone chain component to the second silicone chain component is from about 10:1 to about 1:10.

5. A particle dispersion for display comprising particles for display and a dispersing medium in which the particles for display are dispersed, the particles for display comprising color particles and a silicone polymer attached to a surface of the color particles, the silicone polymer comprising, as copolymerization components, a first silicone chain component, a second silicone component comprising a silicone chain that is shorter than a silicone chain of the first silicone component, and a component comprising a charging group.

6. The particle dispersion for display according to claim 5 , wherein at least one of the first silicone chain component or the second silicone component comprises a silicone macromer component.

7. The particle dispersion for display according to claim 5 , wherein a ratio of silicone chain length of the first silicone chain component to the second silicone chain component is from about 3:1 to about 20:1.

8. The particle dispersion for display according to claim 5 , wherein a ratio of weight of the first silicone chain component to the second silicone chain component is from about 10:1 to about 1:10.

9. A display medium comprising:

a pair of substrates, at least one of the pair of substrates being transparent; and

a particle dispersion comprising particles for display and a dispersing medium in which the particles for display are dispersed,

the particles for display comprising color particles and a silicone polymer attached to a surface of the color particles, the silicone polymer comprising, as copolymerization components, a first silicone chain component, a second silicone component comprising a silicone chain that is shorter than a silicone chain of the first silicone component, and a component comprising a charging group.

10. The display medium according to claim 9 , wherein at least one of the first silicone chain component or the second silicone component comprises a silicone macromer component.

11. The display medium according to claim 9 , wherein a ratio of silicone chain length of the first silicone chain component to the second silicone chain component is from about 3:1 to about 20:1.

12. The display medium according to claim 9 , wherein a ratio of weight of the first silicone chain component to the second silicone chain component is from about 10:1 to about 1:10.

13. A display device comprising the display medium according to claim 9 and a voltage applying unit that applies a voltage to the pair of substrates.

14. The display device according to claim 13 , wherein at least one of the first silicone chain component or the second silicone component comprises a silicone macromer component.

15. The display device according to claim 13 , wherein a ratio of silicone chain length of the first silicone chain component to the second silicone chain component is from about 3:1 to about 20:1.

16. The display device according to claim 13 , wherein a ratio of weight of the first silicone chain component to the second silicone chain component is from about 10:1 to about 1:10.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 22, 2016
From: FUJI XEROX CO. LTD.
To: E INK CORPORATION
Reel/Frame 038213/0160 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 8, 2009
From: YAMAMOTO, YASUO; MORIYAMA, HIROAKI; MACHIDA, YOSHINORI
To: FUJI XEROX CO., LTD.
Reel/Frame 023204/0400 →
Priority Claims (1)
JP 2009-055349 · Mar 9, 2009 · national
Continuity (1)
Related Publication 20100225998A1 · Sep 9, 2010