Diffusion barrier layers with microstructured spacing members for liquid crystal display panel substrates
US6166797A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 1997 |
| Grant date | Dec 26, 2000 |
| Priority date | — |
| Expiry date | Aug 8, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133345
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Substrate elements for making liquid crystal display devices are disclosed as well as display devices using such elements. A substrate element includes a base sheet having the desired optical properties and providing the structural stability for the substrate element. The substrate element further includes a microstructured barrier layer that protects the base sheet from adverse chemical reactions with the liquid crystal or alignment layer solvents. The microstructured barrier layer comprises a plurality of microstructured spacing members that provide precise, uniform spacing between the first substrate element and a second substrate element. A pair of substrate elements, at least one of which having a microstructured barrier layer, can thereby be mated to form a display device. The substrate elements of the present invention allow large area, high resolution displays to be fabricated which will provide uniform display properties throughout the display area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.