Sheet for protecting a plasma display against external light and plasma display device including the sheet

摘要

A plasma display device comprises a plasma display panel (PDP) ; and an external light shielding sheet, which is disposed at a front of the PDP and includes a base unit (510) and a plurality of pattern units (500) which are formed on the base unit and absorb external light, wherein at least one of the plurality of pattern units has an ascending portion with an average slope of 0.5 to 45 degrees and a descending portion with an average slope of -45 to -0.5 degrees. It is thereby possible to effectively realize black images and enhance bright room contrast by arranging the external light shielding sheet, which absorbs and shields external light from the outside, at the front of the display panel (PDP). Also, it is possible to absorb external light incident upon the PDP from the top, bottom, left and right as well as not to considerably narrow the horizontal viewing angle by forming the pattern units, which absorb external light, in at least two directions.