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US 2003/0198805 A9Published application
Optical filter and plasma display panel
AssigneeBridgestone Corporation
InventorMasato Sugimachi
Life of this patent
Estimating the term…
Abstract
An optical filter includes a coloring matter which has an absorption peak in a wavelength range of 570 to 600nm. The optical filter is mounted in the front of a PDP. The spectrums of the PDP shall be corrected by the filter, so that the PDP can be improved in color purity and color reproducibility.
Claims8
An optical filter to be mounted in a front of a PDP, wherein the filter includes a coloring matter having an absorption peak at a wavelength range of 570 to 600 nm.
Dependencies are inferred from the claim text.