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 support comprised of an elongated printed circuit board having a major surface, circuitry on the support, and a plurality of light emitting diodes (“
LEDs”
) in a linear array on the major surface electrically connected to the circuitry;
one or more electrical conductors electrically connecting the plurality of modules; and
one or more flexible strips independent of the one or more electrical conductors, said strips mechanically connecting adjacent modules;
further comprising a clamping element receiving the one or more flexible strips for securing the lighting system to the frame of a sign.
6 Assignments
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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.
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Citations
47 Claims
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1. A lighting system for illuminating a sign, the system comprising:
- a plurality of electrically interconnected modules each module including a support comprised of an elongated printed circuit board having a major surface, circuitry on the support, and a plurality of light emitting diodes (“
LEDs”
) in a linear array on the major surface electrically connected to the circuitry;
one or more electrical conductors electrically connecting the plurality of modules; and
one or more flexible strips independent of the one or more electrical conductors, said strips mechanically connecting adjacent modules;
further comprising a clamping element receiving the one or more flexible strips for securing the lighting system to the frame of a sign. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
- a plurality of electrically interconnected modules each module including a support comprised of an elongated printed circuit board having a major surface, circuitry on the support, and a plurality of light emitting diodes (“
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16. A method of installation of a lighting system for illuminating a sign, the method comprising:
- providing a sign box including at least four side walls and opposed front and back walls, at least one of said front and back wall being light transmissive;
forming a string of LED modules by mechanically connecting modules via one or more flexible strips, and securing at least two strips with-saidbetween opposed side walls of the sign;
electrically connecting a plurality of electrical interconnected modules via one or more electrical conductors, the plurality of electrical interconnected modules each including a support, circuitry electrically connected to the circuitry;
wherein said strips are disposed vertically and said LED modules on the support, at least one light emitting diode (“
LED”
) are suspended away from the walls of the sign box. - View Dependent Claims (17, 18, 19, 20)
- providing a sign box including at least four side walls and opposed front and back walls, at least one of said front and back wall being light transmissive;
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21. A blacklighting system comprising:
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a) a first plurality of light emitting modules, each module including; a support, circuitry on the support, a plurality of light emitting diodes electrically connected to the circuitry and arranged in each module in a spaced relationship in a first array, an overmolding covering the support; 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, said conductors being partially encompassed in the overmolding; and d) one or more flexible strips mechanically connecting adjacent modules in the second array. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 37)
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35. A module for use in backlighting a cabinet sign, comprising:
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a printed wiring board having a direction of elongation; a plurality of LEDs mounted onto a first surface of the wiring board in a linear array, wherein the LEDs are equally spaced apart; an overmold surrounding the printed wiring board; and one or more interconnectivity components that facilitate an electrical connection between the module and one or more disparate modules;
wherein the overmold further encompasses at least a portion of the interconnectivity components. - View Dependent Claims (36)
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38. A backlighting system for use in a cabinet sign, comprising:
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a plurality of interconnected modules configured in a first array, each module comprised of an elongated printed circuit board having front and back major surfaces, each module electrically coupled to at least one other module and each module mechanically fastened to at least one other module via a flexible strip; and a plurality of light emitting diodes located on both front and back major surfaces of each printed circuit board, each diode located a predetermined distance from each other. - View Dependent Claims (39, 40)
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41. A lighting system for illuminating a sign, the system comprising:
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a plurality of electrically interconnected modules each module including a support, circuitry on a front surface and a back surface of the support, at least one light emitting diode (“
LED”
) electrically connected to the circuitry, one each of the front surface and the back surface;one or more insulated electrical conductors electrically connecting the plurality of modules, and one or more flexible strips mechanically connecting adjacent modules, the one or more flexible strips being distinct from the one or more insulated electrical conductors. - View Dependent Claims (42)
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43. A cabinet sign comprising:
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a cabinet having side wails and opposed front and back walls, at least one of said front and back wails being light transmissive; an array of light emitting modules, each module comprising a support, circuitry on the support, and at least one light emitting diode (“
LED”
) electrically connected to the circuitry;the array including a plurality of modules interconnected by one or more electrical connectors, and one or more flexible mechanical connectors; the array having a first end engaging a side wall of the cabinet and a second end engaging an opposed side wall of the cabinet. - View Dependent Claims (44, 45, 46, 47)
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Specification