Sheet-shaped display, sphere-like resin body, and micro-capsule
US6661563B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2001 |
| Grant date | Dec 9, 2003 |
| Priority date | — |
| Expiry date | Jun 22, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2985
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provisions of a large screen, thin sheet-like display device capable of realizing usages just like paper, a sphere-like resin body made of two semispheres capable of being manufactured easily, and a microcapsule containing electrophoretic particles capable of being manufactured easily. The sheet-like display device 10 has a sheet-like display layer 12 and at least one layer 14 containing an element for activating the sheet-like display layer, the layers being integrally formed. The sphere-like resin body has first and second portions made of resins, the absolute value of a difference between both the solubility parameters &dgr;1 and &dgr;2 of the resins being |&dgr;1−&dgr;2|≧0.2. The phoretic particle-containing microcapsule has a resin shell in which phoretic particles are contained in a core. The diameter of the core is in a range from 10 &mgr;m to 200 &mgr;m and the circumferential length L of the microcapsule is in a range of (4.1×T)≦L≦(20.1×T) where T is a Martin diameter of the microcapsule.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.