Interface for liquid crystal display retract device
US5910814A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Mar 29, 1996 |
| Grant date | Jun 8, 1999 |
| Priority date | — |
| Expiry date | Mar 29, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64D11/0015
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An in-flight entertainment system includes several liquid crystal display (LCD) retract units mountable in a passenger service unit of aircraft. Each of the LCD retract units includes an input connector and an output connector arranged such that signals provided to the input connector appear at the output connector. A system control unit (SCU) is also provided. The SCU is configurable to provide video, power and control signals independently to the input connector of each of the LCD retract units and is also configurable to provide video, power and control signals to the input connector of only a first of the LCD retract units. In the second configuration, the input and output connectors of successive LCD retract units are connected in a daisy chain fashion such that the same signals are provided to each of the LCD retract units. In another aspect of the present invention, each of the plurality of LCD retract units includes status communications bus electronics such as RS-485.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.