Interface for liquid crystal display retract device
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United States of America Patent
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-
Jun 8, 1999
Grant Date -
N/A
app pub date -
Mar 29, 1996
filing date -
Mar 29, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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