Solid State Bidirectional Light Sheet for General Illumination

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United States of America Patent

SERIAL NO

13537936

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A solid state light sheet and method of fabricating the sheet are disclosed. In one embodiment, bare LED chips have top and bottom electrodes, where the bottom electrode is a large reflective electrode. The bottom electrodes of an array of LEDs (e.g., 500 LEDs) are bonded to an array of electrodes formed on a flexible bottom substrate. Conductive traces are formed on the bottom substrate connected to the electrodes. A transparent top substrate having conductors is then laminated over the bottom substrate. Various ways to connect the LEDs in series are described along with many embodiments. The light sheets may be formed to emit light from opposite surfaces of the light sheet, enabling it to be used in a hanging fixture to illuminate the ceiling as well as the floor. The light sheet provides a practical substitute for a standard 2×4 foot fluorescent ceiling fixture.

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Patent Owner(s)

Patent OwnerAddress
QUARKSTAR LLC197 E CALIFORNIA AVENUE SUITE 304 LAS VEGAS NV 89104

International Classification(s)

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Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2012201320142015201620172018201920200255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Henry, Michael David Albuquerque, US 37 1566
Lerman, Louis Las Vegas, US 116 3264
Ogonowsky, Brian D Mountain View, US 38 2242
Steele, Robert Redwood City, US 25 2238
York, Allan Brent Langley, CA 113 4142

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  • 32 Citation Count
  • F21V Class
  • 86.18 % this patent is cited more than
  • 13 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges212509329241477331401 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 9091 - 100100 +020406080100120140160180200220240260280

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