Variable-brightness display for use in a navigation system for a

Details Variable-brightness display for use in a navigation system for a Variable-brightness display for use in a navigation system for a

1987-10-30

1990-10-23

Orsino, Joseph A.

Communications: electrical

Vehicle position indication

Map display

340702, 340793, 358161, G09G 128, H04N 558

Patent

active

049655744

ABSTRACT:
A display device applied to a navigation system for a vehicle displaying map information by using a color pallet. The device comprises means for supplying at least a signal distinguishing a bright and a dark environment according to the degree of brightness degree in a passenger compartment of the vehicle. Color pallets have their contents changed according to the information from the supply means. The contents of the registers are changed so that a degree of brightness of background color of a display unit is decreased to less than a decreased degree of brightness of colors displaying the information on the display unit when the output information of the supply means changes from the brightness to the darkness.

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SAE Technical Paper Series, 830659, Mar., 1983, "Electro Gyrocator", Tagami et al., pp. 8-9.

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