Display device, plasma display device, and optical filter

摘要

The present invention provides an optical filter for a display device capable to improve the bright-location contrast, and a display device in particular a plasma display device incorporating the optical filter. In a transmittance spectrum of the optical filter, a transmittance in a region having a wavelength range of 430 nm to 445 nm, a transmittance in a region having a wavelength range of 535 to 560 nm, and a transmittance in a region having a wavelength range of 605 to 630 nm are set to 80% or less of the maximum transmittance over the entire visible wavelength region.