Liquid crystal panel display device
US4649381A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 1984 |
| Grant date | Mar 10, 1987 |
| Priority date | — |
| Expiry date | Oct 25, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133606
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid crystal panel device comprises a liquid crystal panel having a relatively large area particularly while in use with an automobile dashboard and having a plurality of display sections, a diffusion plate disposed opposing the rear face of the liquid crystal panel for diffusing receiving light rays, a printed circuit board disposed opposing the rear face of the diffusion plate, and a plurality of light emitting members disposed in equally spaced relation to each other on the printed circuit board over the whole region of the liquid crystal panel. A reflection plate is provided between the diffusion plate and the board, and a partition plate corresponding to the display section of the liquid crystal panel is provided. Within a space defined by the diffusion plate, board, reflection plate, and partition plate, the light emitting members consisting of three or four incandescent lamps are disposed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.