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US 10,852,156 B2Granted
Apparatus for an aircraft cockpit display
AssigneeGE Aviation Systems LLC
InventorsMark Anthony Bushell, Brett Allen Eddy
Life of this patent
Estimating the term…
Abstract
An aircraft cockpit display includes among other things an LCD panel having a liquid crystal matrix, and backlight assembly for illuminating the liquid crystal matrix. The remainder of the display allows for single point failures within the architecture that impact only a portion of the primary display functions of the LCD panel.
Claims12
An aircraft cockpit display comprising:
- a display panel disposed within a flight display module, the display panel including only one pixel matrix with pixels arranged in rows and columns and configured for receiving illumination from a backlight;
- first and second independent video channels, each including a (i) row driver selectively connectable to all of the rows, (ii) column driver operably coupled to and driving the columns of a corresponding portion of the display panel, and (iii) backlight driver for selectively controlling the backlight to provide the illumination;
- wherein only one of the row drivers is activated at an instant in time;
- and
- a switch for selecting one of the first and second independent video channels upon occurrence of a failure in the other of the first and second independent video channels, the selected independent video channel being capable of facilitating control of its corresponding row driver and the row driver of the other of the first and second independent video channels;
- wherein, the switch selects one of the first and second independent video channels in response to a fault detection system within the flight display module, the fault detection system being configured to detect errors in graphical information related to the display panel;
- and
- wherein the selected independent video channel operates (i) the selected row driver, (ii) corresponding one of—the column drivers, and (iii) a corresponding one of the backlight drivers, as the row drivers of the other of the first and second independent video channels are disabled, to display a video signal on the portion of the display panel corresponding to the selected independent video channel.
5 more elements
An aircraft cockpit display comprising:
- an LCD panel disposed within a flight display module, the LCD panel having a liquid crystal matrix with pixels arranged in rows and columns and configured for receiving illumination from a backlight;
- first and second independent video channels, each including a (i) row driver selectively connectable to all of the rows, (ii) column driver operably coupled to and driving the columns of a corresponding portion of the matrix, and (iii) backlight driver for selectively controlling the backlight to provide the illumination;
- wherein only one of the row drivers is activated at an instant in time;
- and
- a switch for selecting one of the first and second independent video channels upon occurrence of a failure in the other of the first and second independent video channels, the selected independent video channel being capable of facilitating control of its corresponding row driver and the row driver of the other of the first and second independent video channels;
- wherein, the switch selects one of the first and second independent video channels in response to a fault detection system within the flight display module, the fault detection system being configured to detect errors in graphical information related to the display panel;
- wherein, a source of power is interrupted to the other of the first and second independent video channels;
- and
- wherein the selected first or second independent video channel operates (ii) the selected row driver (ii) a corresponding one of the column drivers, and a corresponding one of the backlight drivers corresponding to selected independent video channel to display a video signal on the corresponding portion of the LCD panel, as the row drivers of the other of the first and second independent video channels are disabled.
6 more elements
Dependencies are inferred from the claim text.