Sealing of cells having active backplanes
US6690444B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2001 |
| Grant date | Feb 10, 2004 |
| Priority date | — |
| Expiry date | Aug 1, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13454
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In active semiconductor backplane (3), for example for a smectic liquid crystal cell, which comprises an array of electronic or elctrical elements in a first region (4), logic elements for addressing said array in a second region spaced from the first, and conductors coupling said first and second regions, the first and second regions are sufficiently widely spaced (21, 22) (providing a “glue lane”) to permit the presence of an adhesive sealing strip therebetween without substantial contact with the first and/or second regions, even when an opposed substrate is sealed thereto. The backplane may comprise spacers (25, 26) in the first region and/or glue lane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.