Liquid crystal display device
US6330048A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 1999 |
| Grant date | Dec 11, 2001 |
| Priority date | — |
| Expiry date | Aug 19, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1393
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid crystal display device is provided, in which a liquid crystal layer made of liquid crystal having negative dielectric anisotropy is provided in a gap between a pair of substrates each having an electrode, wall-shaped convex portions are provided so as to surround display pixels on at least one of the substrates, a homeotropic alignment film is provided on a surface of each of the substrates contacting the liquid crystal layer, liquid crystal molecules in the liquid crystal layer are aligned substantially in a direction perpendicular to the pair of substrates when a voltage is not applied, and the liquid crystal molecules are axially symmetrically aligned in each of the display pixels formed by opposing portions of the electrodes when a voltage is applied. In this device, the gap between the substrates is maintained by spacers dispersed on one of the substrates after the alignment film is formed, and the number of spacers in each of the display pixels is zero or one.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.