Patent ID: 8054415

Claim:
Apparatus for display backlight, the apparatus comprising: a substrate structure comprising a first substrate, a second substrate, and a lens focal structure formed between a bottom surface of the first substrate and a top surface of the second substrate, the substrate structure having a plurality of thin film transistor (TFT) cells formed on a top surface of the substrate structure; and a plurality of light emitting diode (LED) sources formed on a bottom surface of the second substrate, each of the plurality of LED sources positioned so as to emit light from the LED toward and through the top surface of the substrate structure and through one or more corresponding ones of the plurality of TFT cells, wherein the lens focal structure is configured to focus light emitted from each of the plurality of LED sources toward corresponding ones of the plurality of TFT cells, the lens focal structure further comprises a plurality of lenses, each lens generally positioned above a corresponding one of the plurality of LED sources and below two or more corresponding ones of the plurality of TFT cells, each lens within the lens focal structure configured so as to direct light emitting i) through the lens from the corresponding LED source and ii) through the two or more corresponding ones of the plurality of TFT cells.