LED backlight system for cabinet sign
First Claim
Patent Images
1. A lighting system for illuminating a sign, the system comprising:
- a plurality of electrically interconnected modules each module including a double-sided printed circuit board having a length, and at least one light emitting diode (“
LED”
) electrically connected to the printed circuit board;
two or more electrical conductors electrically connecting the plurality of modules; and
one or more rails, each of said rails having a width less than the length of said printed circuit board, said rails mechanically connecting adjacent modules in a spaced relationship.
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0 Petitions
Accused Products
Abstract
A backlighting system for a cabinet sign may include a plurality of panels. Each panel includes a plurality of light emitting diodes (“LEDs”) attached to the panel. The diode has a box sign depth factor of less than about 1.4. An integrated circuit may also be located on the panel. A wire physically connects adjacent panels.
72 Citations
23 Claims
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1. A lighting system for illuminating a sign, the system comprising:
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a plurality of electrically interconnected modules each module including a double-sided printed circuit board having a length, and at least one light emitting diode (“
LED”
) electrically connected to the printed circuit board;two or more electrical conductors electrically connecting the plurality of modules; and one or more rails, each of said rails having a width less than the length of said printed circuit board, said rails mechanically connecting adjacent modules in a spaced relationship. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A backlighting system comprising:
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a) a first plurality of light emitting modules, each module including; a printed wiring board, a plurality of light emitting diodes electrically connected to the printed wiring board and arranged in each module in a spaced relationship in a first array, an overmolding covering the at least a portion of the printed wiring board; b) wherein the first plurality of light emitting modules are arranged in spaced relationship to one another in a second array such that the relative spacing of the light emitting diodes between adjacent modules is substantially the same as the relative spacing of the light emitting diodes in a given module; c) one or more insulated electrical conductors electrically connecting the first plurality of modules; and d) one or more rails mechanically connecting adjacent modules in the second array; the backlighting system further comprising; a) a second plurality of light emitting modules, each module including; a printed wiring board, a plurality of light emitting diodes electrically connected to the printed wiring board and arranged in each module in a spaced relationship in a third array, an overmolding covering at least a portion of the printed wiring board; b) wherein the second plurality of light emitting modules are arranged in a spaced relationship to one another in a fourth array such that the relative spacing of the light emitting diodes between adjacent modules is substantially the same as the relative spacing of the light emitting diodes in a given module; c) one or more insulated electrical conductors electrically connecting the second plurality of modules; and d) one or more rails mechanically connecting adjacent modules in the fourth array; and wherein the second plurality of modules is arranged relative to the first plurality of modules such that the light emitting diodes of the second plurality of modules are arranged intermediate the light emitting diodes of the first plurality of modules. - View Dependent Claims (17, 18, 19, 20, 22, 23)
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21. A backlighting system comprising:
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a) a first plurality of light emitting modules, each module including; a printed wiring board, a plurality of light emitting diodes electrically connected to the printed wiring board and arranged in each module in a spaced relationship in a first array, an overmolding covering the at least a portion of the printed wiring board; b) wherein the first plurality of light emitting modules are arranged in spaced relationship to one another in a second array such that the relative spacing of the light emitting diodes between adjacent modules is substantially the same as the relative spacing of the light emitting diodes in a given module; c) one or more insulated electrical conductors electrically connecting the first plurality of modules; and d) one or more rails mechanically connecting adjacent modules in the second array; the backlighting system further comprising; a) a second plurality of light emitting modules, each module including; a printed wiring board, a plurality of light emitting diodes electrically connected to the printed wiring board and arranged in each module in a spaced relationship in a third array, an overmolding covering at least a portion of the printed wiring board; b) wherein the second plurality of light emitting modules are arranged in a spaced relationship to one another in a fourth array such that the relative spacing of the light emitting diodes between adjacent modules is substantially the same as the relative spacing of the light emitting diodes in a given module; c) one or more insulated electrical conductors electrically connecting the second plurality of modules; and d) one or more rails mechanically connecting adjacent modules in the fourth array; and wherein the second plurality of modules is arranged relative to the first plurality of modules such that the light emitting diodes of the second plurality of modules are arranged to direct light in a direction opposite of the light emitting diodes of the first plurality of modules.
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Specification