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US6300932B1 Expired / Lapsed US ⏱️ 0.0 years remaining

Electrophoretic displays with luminescent particles and materials for making the same

Assignee: E Ink Corp
•
Filing: 1998-08-27
•
Granted: 2001-10-09
•
Expires: 2018-08-27
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Abstract

Abstract Disclosed herein are novel electrophoretic displays and materials useful in fabricating such displays. In particular, novel encapsulated displays are disclosed. Particles encapsulated therein are dispersed within a suspending, or electrophoretic, fluid. This fluid may be a mixture of two or more fluids or may be a single fluid. The displays may further comprise particles dispersed in a suspending fluid, wherein the particles contain a liquid. In either case, the suspending fluid may have a density or refractive index substantially matched to that of the particles dispersed therein. Finally, also disclosed herein are electro-osmotic displays. These displays comprise at least one capsule containing either a cellulosic or gel-like internal phase and a liquid phase, or containing two or more immiscible fluids. Application of electric fields to any of the electrophoretic displays described herein affects an optical property of the display.

Inventors

  • 👤 Jonathan D. Albert

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 09:36
CPC Classifications
G; G09; G09F; G09F9/00; G09F9/30; G09F9/37; G09F9/372; B; B41; B41J; B41J3/00; B41J3/407; B41J3/4076; G02; G02B; G02B26/00; G02B26/02; G02B26/026; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1345; G02F1/165; G02F1/166; G02F1/167; G09F9/302; G02F1/133305; G02F1/13336; G02F1/1334; G02F2202/00; G02F2202/28; H; H10; H10K; H10K10/00; H10K10/40; H10K10/46; H10K10/462; H10K85/00; H10K85/30; H10K85/60

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 47 words
An encapsulated electrophoretic display, comprising: (a) suspending fluid; and (b) at least one species of electrophoretically mobile particle comprising a first portion linked with a second portion, wherein the first portion is capable of reflecting visible light and the second portion is capable of emitting visible light.
Claim 2
Dependent Claim 47 words
An encapsulated electrophoretic display, comprising: (a) suspending fluid; and (b) at least one species of electrophoretically mobile particle comprising a first portion linked with a second portion, wherein the first portion is capable of reflecting visible light and the second portion is capable of emitting visible light.
Claim 3
Dependent Claim 25 words
The display of claim 1 , wherein said emission of visible light comprises a phenomenon selected from the group consisting of electroluminescence, phosphorescence, and fluorescence.
Claim 4
Dependent Claim 14 words
The display of claim 1 , wherein said suspending fluid contains a light-blocking material.
Claim 5
Dependent Claim 15 words
The display of claim 3 , wherein said light-blocking material comprises a plurality of particles.
Claim 6
Dependent Claim 13 words
The display of claim 3 , wherein said light-blocking material comprises a dye.
Claim 7
Dependent Claim 25 words
The display of claim 1 , wherein said at least one species of electrophoretically mobile particle is encapsulated with an insulative material to reduce conduction.
Claim 8
Dependent Claim 13 words
The display of claim 2 , wherein the second portion comprises zinc sulfide.

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2004-10-08 2005-04-09 2005-10-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2008-10-08 2009-04-09 2009-10-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2012-10-08 2013-04-09 2013-10-09 $7700.00 Window Closed / Lapsed

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