Fine Pitch Full Color Variable Message Sign
AssigneeSkyline Products, Inc.
InventorROBERT CHARLES STADJUHAR
Life of this patent
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Abstract
A fine pitch full color variable message sign has a housing with a front face. A number of printed circuit boards are arranged along the front face of the housing. A number of LEDs are attached to each of the printed circuit boards. The LEDs are grouped into a number of pixels, each pixel has three LEDs arranged in a line. A mask covers the printed circuit boards. The mask has a number of elliptical apertures. A glazing may cover the printed circuit boards and is between the printed circuit boards and the mask. Each pixel has three LEDs; red, blue, and green. The LEDs that form a pixel are arranged in a line. The elliptical apertures are aligned with each pixel.
Claims22
A fine pitch full color variable message sign, comprising:
- a mask having a plurality of elliptical openings;
- a glazing adjacent to the mask;
- a plurality of printed circuit boards adjacent to the glazing, each of the plurality of printed circuit boards having a plurality of pixels, wherein each pixel includes a red LED, a green LED, and a blue LED, wherein the red LED, the green LED, and the blue LED of one of the plurality pixels are arranged along a line;
- and
- a structural return having a first end attached to the mask;
- and
- a housing attached to the mask.
The sign of claim 8, wherein a center of one of the plurality of elliptical openings is offset from a midpoint of a line segment formed by the red LED, the green LED, and the blue LED of one pixel.
A fine pitch full color variable message sign, comprising:
- a housing having a front face;
- a plurality of printed circuit boards arranged along the front face of the housing;
- a plurality of LEDs attached to each of the plurality of printed circuit boards, wherein the plurality of LEDs are grouped into a plurality of pixels, each pixel having three LEDs arranged in a line;
- and
- a mask covering the plurality of printed circuit boards, the mask having a plurality of elliptical apertures.
A fine pitch full color variable message sign, comprising:
- a housing;
- a printed circuit board inside the housing and having a face parallel with a face of the housing;
- and
- a plurality of LEDs attached to the printed circuit board, wherein the plurality of LEDs are grouped into a plurality of pixels, each pixel having three LEDs arranged in a line.
Dependencies are inferred from the claim text.