Illumination – Display backlight
Reexamination Certificate
2011-05-17
2011-05-17
Ton, Anabel M (Department: 2875)
Illumination
Display backlight
C362S610000, C362S615000, C362S626000, C362S620000, C349S015000
Reexamination Certificate
active
07942541
ABSTRACT:
A light guide including a transparent substrate; a plurality of guide members formed on a first surface of a transparent substrate, the guides have guide bases separated by an open area on the first surface of the transparent substrate having a width “a”, and the guide bases overlapping an area on the first surface of the transparent substrate having a width “b”, facing sides of adjacent guides each forming an obtuse angle with the first surface of the transparent substrate and, wherein the ratio “b” divided by “a” is substantially equal to N where N is an integer greater than 2 a transparent substrate having an incidence surface and a transmitting surface; and a plurality of guides each formed on the incidence surface of the transparent substrate and each guide having opposing side surfaces each forming an angle with the incidence surface.
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LG Display Co. Ltd.
McKenna Long & Aldridge LLP
Ton Anabel M
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