Adaptable backlight
AssigneePanasonic Automotive Systems Company of America, Division of Panasonic Corporation of North America
InventorsEdo Omanovic, Walter Nill, David K. Lambert
Life of this patent
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Abstract
A liquid crystal display arrangement for a motor vehicle includes a plurality of light emitting diodes positioned to backlight a liquid crystal display. A plurality of electrical conductors are each electrically connected to, and provide electrical power to, a different respective subset of the light emitting diodes. An electronic controller is electrically coupled to each of the conductors and individually controls conduction of electricity through each of the conductors to thereby change a brightness of at least one of the subsets of the light emitting diodes relative to a brightness of at least one other subset of the light emitting diodes during operation of the motor vehicle.
Claims17
A liquid crystal display arrangement for a motor vehicle, the arrangement comprising:
- a liquid crystal display;
- a plurality of light emitting diodes positioned to backlight the liquid crystal display;
- a plurality of electrical conductors, each of the conductors being electrically connected to, and configured to provide electrical power to, a different respective subset of the light emitting diodes;
- an electronic controller electrically coupled to each of the conductors and configured to individually control conduction of electricity through each of the conductors to thereby change a brightness of at least one of the subsets of the light emitting diodes relative to a brightness of at least one other said subset of the light emitting diodes during operation of the motor vehicle;
- and
- a plurality of user-actuatable controls electrically connected to the electronic controller for individually adjusting the respective brightnesses of the subsets of the light emitting diodes.
A method of presenting a display in a motor vehicle, the method comprising:
- installing a liquid crystal display in the motor vehicle;
- positioning a plurality of light emitting diodes to backlight the liquid crystal display;
- electrically connecting each of a plurality of electrical conductors to a different respective subset of the light emitting diodes;
- using each of the conductors to provide electrical power to the different respective subset of the light emitting diodes;
- individually controlling conduction of electricity through each of the conductors to thereby change a brightness of at least one of the subsets of the light emitting diodes relative to a brightness of at least one other said subset of the light emitting diodes during operation of the motor vehicle;
- electrically connecting a plurality of user-actuatable controls to the electronic controller;
- and
- enabling a user to individually adjust the respective brightnesses of the subsets of the light emitting diodes by actuating at least one of the controls.
A liquid crystal display arrangement for a motor vehicle, the arrangement comprising:
- a liquid crystal display;
- a plurality of light emitting diodes positioned to backlight the liquid crystal display;
- a plurality of electrical conductors, each of the conductors being electrically connected to, and configured to provide electrical power to, a different respective one of the light emitting diodes;
- an electronic controller electrically coupled to each of the conductors and configured to control flow of electrical current through each of the light emitting diodes individually to thereby change a brightness of at least one of the light emitting diodes relative to a brightness of at least one other said light emitting diode during operation of the motor vehicle;
- and
- a plurality of user-actuatable controls electrically connected to the electronic controller for individually adjusting the respective brightnesses of the light emitting diodes.
Dependencies are inferred from the claim text.