Light emitting diode (LED) devices, systems, and methods
First Claim
Patent Images
1. A backlighting device for use with a display panel, the backlighting device comprising:
- one or more light emitting diodes (LEDs) for backlighting a display panel, the one or more LEDs attached to a substrate by eutectic die attach, by thermal compression die attach, or by non-eutectic metal-to-metal die attach; and
the one or more LEDs comprising an array of LEDs operable for providing substantially uniform illumination to the display panel.
3 Assignments
0 Petitions
Accused Products
Abstract
Light emitting diode (LED) devices, systems, and methods are disclosed. In one aspect, an illumination panel can be configured to provide backlighting for a liquid crystal display (LCD) panel. The illumination panel can include one or more LEDs arranged in an array. The one or more LEDs can be attached using metal-to-metal die attach methods over an illumination panel, or attached within packages disposed over the illumination panel. In one aspect, the one or more LEDs can be attached using robust metal-to-metal die attach techniques and/or materials disclosed herein.
102 Citations
126 Claims
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1. A backlighting device for use with a display panel, the backlighting device comprising:
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one or more light emitting diodes (LEDs) for backlighting a display panel, the one or more LEDs attached to a substrate by eutectic die attach, by thermal compression die attach, or by non-eutectic metal-to-metal die attach; and the one or more LEDs comprising an array of LEDs operable for providing substantially uniform illumination to the display panel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 102)
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18. A backlighting device for use with a display panel, the backlighting device comprising:
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one or more light emitting diodes (LEDs) for backlighting a display panel, the one or more LEDs attached to a substrate at a mounting temperature of approximately 280°
Celsius (°
C.) or greater;the one or more LEDs operable for providing substantially uniform illumination to the display panel; and the device comprising a minimum of approximately 65 CRI for Cool White (CW) color points or a minimum of approximately 80 CRI for Warm White (WW) color points. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A backlighting system comprising:
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a display panel for displaying an image; an illumination panel comprising one or more light emitting diodes (LEDs) attached to a substrate; the one or more LEDs attached to the substrate by eutectic die attach, thermal compression die attach, or by non-eutectic metal-to-metal die attach; the one or more LEDs operable for providing substantially uniform illumination to the display panel; and the system comprising a minimum of approximately 65 CRI for Cool White (CW) color points or a minimum of approximately 80 CRI for Warm White (WW) color points. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54)
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55. A backlighting system comprising:
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a display panel for displaying an image; an illumination panel comprising an array of light emitting diodes (LEDs) attached to a substrate; the array of LEDs attached to the substrate at a mounting temperature greater than a melting temperature of a bonding layer of the LEDs; and the array of LEDs operable for providing substantially uniform illumination to the display panel. - View Dependent Claims (56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 103)
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71. A method for backlighting a display panel, the method comprising:
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providing a backlighting device comprising; one or more light emitting diodes (LEDs) for backlighting a display panel, the one or more LEDs attached to a substrate by eutectic die attach, thermal compression die attach, or by non-eutectic metal-to-metal die attach; and the one or more LEDs operable for providing substantially uniform illumination to the display panel; and positioning the one or more LEDs with respect to the display panel for providing substantially uniform backlighting illumination to the display panel, wherein positioning the one or more LEDs comprises positioning the LEDs spaced apart a gap from the display panel. - View Dependent Claims (72, 73, 74, 75, 76, 77, 78)
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79. A method for backlighting a display panel, the method comprising:
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providing a backlighting device comprising; one or more light emitting diodes (LEDs) for backlighting a display panel, the one or more LEDs attached to a substrate at a mounting temperature of approximately 280°
Celsius (°
C.) or greater; andthe one or more LEDs operable for providing substantially uniform illumination to the display panel; and positioning the one or more LEDs with respect to the display panel for providing substantially uniform backlighting illumination to the display panel. - View Dependent Claims (80, 81, 82, 83, 84)
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85. A method for backlighting a display panel, the method comprising:
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providing a backlighting system comprising; a display panel for displaying an image; an illumination panel comprising one or more light emitting diodes (LEDs) attached to a substrate; the one or more LEDs attached to the substrate by eutectic die attach, thermal compression die attach, or by non-eutectic metal-to-metal die attach; and the one or more LEDs operable for providing substantially uniform illumination to the display panel; and positioning the one or more LEDs with respect to the display panel for providing substantially uniform backlighting illumination to the display panel. - View Dependent Claims (86, 87, 88, 89, 90, 91, 92, 93)
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94. A method for backlighting a display panel, the method comprising:
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providing a backlighting system comprising; a display panel for displaying an image; an illumination panel comprising one or more light emitting diodes (LEDs) attached to a substrate; the one or more LEDs attached to the substrate at a mounting temperature greater than a melting temperature of a bonding layer of the LEDs; the one or more LEDs operable for providing substantially uniform illumination to the display panel; and positioning the one or more LEDs with respect to the display panel for providing substantially uniform backlighting illumination to the display panel. - View Dependent Claims (95, 96, 97, 98, 99, 100, 101)
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104. A light emitting device for a lighting fixture, the light emitting device comprising:
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a package for housing one or more light emitting diodes (LEDs); the one or more LEDs attached to a substrate of the package by eutectic die attach, thermal compression die attach, or by non-eutectic metal-to-metal die attach; and the light emitting device comprising a minimum of approximately 65 CRI for Cool White (CW) color points or a minimum of approximately 80 CRI for Warm White (WW) color points. - View Dependent Claims (105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 121, 122, 123, 124, 125, 126)
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115. A light emitting device for a lighting fixture, the light emitting device comprising:
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a package for housing one or more light emitting diodes (LEDs); the one or more LEDs comprising a bonding surface disposed opposite an upper surface of the one or more LEDS, an inclined lateral side extending between the bonding surface and the upper surface, and the bonding surface comprising a bonding layer attached to a mounting substrate of the package by eutectic die attach, thermal compression die attach, or by non-eutectic metal-to-metal die attach; wherein the bonding surface the one or more LEDs comprises at least a portion of a substrate, a p-side, a n-side, or each of the p- and n-sides of the LED. - View Dependent Claims (116, 117, 118, 119, 120)
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Specification