Liquid crystal display device
US6705584B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2002 |
| Grant date | Mar 16, 2004 |
| Priority date | — |
| Expiry date | Aug 15, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1362
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a liquid crystal display device comprising a first substrate having switching elements formed for respective pixel electrodes thereon and a second substrate having color filters and a common electrode formed on a main surface thereof, the present invention provides a plurality of columnar spacers formed on both areas of the second substrate inside and outside the common electrode, covers a group of the columnar spacers formed on the common electrode with an alignment film, and arranges another group of the columnar spacers formed around the common electrode at both sides of a sealing material sticking the first substrate and the second substrate to one another. According to the present invention, the group of the columnar spacers fixed to the second substrate with the alignment film firmly secures a gap between the first and second substrates in cooperation with the another group of the columnar spacers arranged so as to compensate for deformation of the sealing material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.