Smart dual display system
A secure display system for a movable object, such as an aircraft, includes: a screen comprising at least two independent matrices formed of pixels, each of the matrices being controlled by an independent graphic channel; a light box comprising at least two independent subassemblies, each backlighting each half-screen; two bypass functions, a bypass function being associated with a graphic channel, a bypass function being linked to an input of one of the matrices; a central module having a function of mixing the data originating from the two independent graphic channels, and a function of separating said data, said separation module being connected to said bypass functions; each graphic channel comprising image-generation means; and two power supply means. The display system may be used in an aeroplane.
1. A secure display system, comprising:
a display screen comprising at least two independent matrices formed of pixels, each of the matrices being controlled by an independent graphic channel, said matrices having independent inputs,
a light box comprising at least two independent subassemblies, each subassembly backlighting a half-screen of the display screen,
two bypass switches, each bypass switch connected on a one-to-one basis with one of the two graphic channels and controlled by the connected graphic channel, each bypass switch selectively connecting the input of each of the matrices to a signal output the graphic channel that controls the bypass switch or to the output of a central assembly,
wherein the central assembly mixes images originating from the two independent graphic channels into a full screen image, separates the full screen image into half-screen portions, and outputs one of the separated half-screen portions to each of the bypass switches,
wherein each graphic channel generates an image and outputs the image to a bypass switch and the central assembly, and
a first power supply unit and a second power supply unit.
2. The system according to claim 1 , further comprising a synchronization unit controlling synchronization between the two graphic channels.
3. The system according to claim 2 , further comprising a monitoring unit connected to the graphic channels.
4. The system according to claim 2 , further comprising a third power supply unit powering the central assembly.
5. The system according to claim 1 , further comprising a monitoring unit connected to the graphic channels.
6. The system according to claim 1 , further comprising a third power supply unit powering the central assembly.
7. The system according to claim 1 , wherein said screen is a liquid crystal screen consisting of two independent matrices of pixels.
8. The system according to claim 1 , wherein each graphic channel generates data allowing the independent display of two half-images on the two half-portions forming the screen.
9. The system according to claim 1 , wherein a single graphic channel generates data allowing the display of a full-screen image on the two half-portions forming the screen.
10. The system according to claim 1 , wherein each of the graphic channels generates data allowing a display on one or more windows distributed over the screen.
11. The system according to claim 1 , wherein each of the graphic channels generates data allowing a display surface corresponding to the totality of the screen.
12. The system according to claim 1 , comprising one, two, or three LCD screens.