Passive matrix single-coloured LED display assembly
AssigneeLumileds LLC
InventorsFlorent Monestier, Casey Israel
Life of this patent
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Abstract
The invention describes a passive matrix single-color LED display assembly comprising a matrix of row conductor lines and column conductor lines; an array of direct-emitting LED packages, wherein the anode of each LED package is electrically connected to one of the row conductor lines and the cathode of that LED package is connected to one of the column conductor lines; and a driver configured to apply a bias voltage to a row conductor line and to apply a bias voltage to a column conductor line according to an image to be displayed.
Claims11
A passive matrix single-colour light emitting diode (LED) display assembly comprising:
- a matrix of row conductor lines and column conductor lines, the column conductor lines including a spring element arranged between neighboring intersections of the row conductor lines and the column conductor lines;
- a layer of electrically insulating material applied onto a surface of the row conductor line to electrically isolate that row conductor line from any intersecting column conductor lines;
- an array of direct-emitting LED packages, each of the direct-emitting LED packages in the array comprising an LED mounted on an interposer with an anode electrically coupled to one of the row conductor lines and a cathode electrically coupled to one of the column conductor lines enabling individual control of LEDs in the array;
- and
- a driver configured to apply a row bias voltage to a row conductor line and to apply a column bias voltage to a column conductor line according to an image to be displayed.
An automotive vehicle comprising:
- a plurality of passive matrix single-colour light emitting diode (LED) display assemblies, each display assembly comprising:
- a matrix of row conductor lines and column conductor lines, the column conductor lines including a spring element arranged between neighboring intersections of the row conductor lines and the column conductor lines;
- a layer of electrically insulating material applied onto a surface of a row conductor line to electrically isolate that row conductor line from any intersecting column conductor lines;
- an array of direct-emitting LED packages, each of the direct-emitting LED packages in the array comprising an LED mounted on an interposer with an anode electrically coupled to one of the row conductor lines and a cathode electrically coupled to one of the column conductor lines enabling individual control of LEDs in the array;
- a driver configured to apply a row bias voltage to a row conductor line and to apply a column bias voltage to a column conductor line according to an image to be displayed;
- a memory configured to store image data for a number of images;
- and
- a controller configured to retrieve image data for a specific image and to control the driver of the passive matrix LED display assembly to display the specific image.
Dependencies are inferred from the claim text.