Method of producing a liquid crystal display with a spacer
US5513026A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 1995 |
| Grant date | Apr 30, 1996 |
| Priority date | — |
| Expiry date | Feb 15, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133305
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a liquid crystal display device (LCD), a spacer is interposed between an upper and a lower substrate implemented by flexible films. Liquid crystals are confined in the gap between the two substrates. The spacer is scattered in the crystals at a density higher than 201/mm.sup.2 and lower than 800/mm.sup.2. The device allows a minimum of bubbles to be produced in the crystals without resorting to gas barrier coatings or similar conventional implementation against bubbles. When the spacer is sprayed, it is uniformly distributed to set up a uniform cell gap. The device is, therefore, free from display speckles and other defects and inexpensive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.