Ferroelectric liquid crystal display with seal larger than cell gap plus half color filter thickness and 1.2-5mm from filter edge
US5381255A · kind A · utility
31Cited by
1References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1993 |
| Grant date | Jan 10, 1995 |
| Priority date | — |
| Expiry date | Dec 29, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133514
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
There is disclosed a ferroelectric liquid crystal color-display panel capable of preventing defects in liquid crystal orientation, resulting from the glass substrate bending, particularly in the end portion of effective display area, by the use of a gap-retaining material, such as silica or alumina beads, in the sealant of the panel, wherein the diameter T of the gap retaining material satisfies a relation: EQU t.sub.1 +(t.sub.2 /2).ltoreq.t in which t.sub.1 is the cell gap in the display area and t.sub.2 is the thickness of color filter provided in the display area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.