Process for producing display device
US6729924B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jun 6, 2002 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | Aug 15, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1679
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrophoretic display device is provided with an improved display quality by distributing an electrophoretic liquid mixture containing electrophoretic particles to respective pixels in substantially equal amounts, thereby obviating a display density fluctuation due to a difference in distributed amount of the electrophoretic particles at the respective pixels. The equal distribution is performed through a process including the use of a temporary adsorbing member carrying the electrophoretic particles in an electrostatically adsorbed form in a pattern corresponding to an arrangement pattern, followed by transfer of the electrophoretic particles to the respective pixels, or a process including distribution of a distribution liquid containing the electrophoretic particles to the respective pixels followed by a step of adding the dispersion liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.