Prism sheet and display device using the same

Details Prism sheet and display device using the same Prism sheet and display device using the same

2005-08-25

2008-11-18

Lee, Y My Quach (Department: 2885)

Illumination

Display backlight

Lcd backlight

C362S620000, C362S626000, C362S328000, C362S309000, C362S339000

Reexamination Certificate

active

07452093

ABSTRACT:
A prism sheet for emitting an incident light in an even distribution state of light quantity even in the case of using an irradiating light source such as a point light source having an emission of narrow band. A display device for deflecting and displaying the light from the light source evenly and efficiently without deteriorating the display quality by applying the prism sheet thereto.A prism sheet for deflecting and emitting a light introduced into a transparent substrate, with a prism formed on the substrate. The prism sheet includes: a circular prism having a plurality of annular grooves arrayed concentrically from a center axis; and a radial prism having a plurality of straight grooves arrayed radially from the center axis.

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