Patent ID: 6685329
Filing Date: 2004-02-03
Classification: G02B

Abstract:
A brightness-enhancing light guiding plate, comprising:a light incident surface through which a light is incident; a bottom surface arranged adjacent to the light incident surface, for reflecting the light; and a light output surface opposite the bottom surface and through which the light is output; wherein the bottom surface includes a plurality of a brightness-enhancing recesses, each of the brightness-enhancing recesses has a reflection recess surface which faces the light incident surface with a first inclination with respect to the bottom surface and reflects the light toward the light output surface, and a non-reflection recess surface which is extended from an end of the reflection recess surface with a second inclination with respect to the bottom surface, and the second inclination of the non-reflection recess surface is determined such that the number of the brightness-enhancing recesses is maximized in the bottom surface.