CEF FILTER AND PLASMA DISPLAY APPARATUS HAVING THE SAME

摘要

A CEF(Contrast Enhancing Film) filter and a plasma display device having the same are provided to improve transmissivity and contrast of a lightroom and to increase luminance through diffusion of the internal light by equally distributing colored pattern units. A CEF filter(10) is composed of a base film(13) and a plurality of colored pattern units(11) included in the base film, wherein a part of the colored pattern unit facing the front side is wide. The section of the colored pattern unit is shaped like a triangle or a trapezoid and the width of the bottom side facing the front side is within a range of 10~200mum. A light absorbing and reflecting layer(12) is formed at a part of the surface of the colored pattern unit facing the rear side and an inclined surface.