Flat panel color display with enhanced brightness and...

Details Flat panel color display with enhanced brightness and... Flat panel color display with enhanced brightness and...

2006-08-15

2006-08-15

Guharay, Karabi (Department: 2879)

Electric lamp and discharge devices

With optical device or special ray transmissive envelope

C313S500000, C313S111000, C362S235000, C362S268000

Reexamination Certificate

active

07091652

ABSTRACT:
A light directing apparatus comprising an LED array having RGB light emitting diode structures arrayed longitudinally along a substrate to form a plurality of RGB triplet groups and a lenslet array having a plurality of lenslet structures positioned adjacent a respective one of the RGB triplet groups. The lenslet structures include for each respective RGB triplet group a plurality of cylindrical lenses indexed to its respective RGB triplet group. The cylindrical lenses are longitudinally arrayed in parallel to said RGB light emitting diode structures. This arrangement results in greater optical efficiency because light from the LEDs is preferentially directed in a desired direction where an observer is most likely to be.

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