| 摘要 |
<p>A PDP filter and PDP device which of which the safeness concerning leakage of electromagnetic waves of various wavelengths is further enhanced while the features of a PDP (plasma display) are not deteriorated. The PDP optical filter such that the ratio (Tv/Tn) of the visible light transmissivity (Tv) to the transmissivity (Tn) of near infrared radiation in a wavelength range of 800 - 1000 nm is not less than 3 consists of a transparent substrate (3) made of polymer containing a near infrared absorbing component composed of divalent copper ions (1) and/or near infrared absorbing pigment (2).</p> |
