FRONT FILTER

摘要

PURPOSE: A front filter is provided to improve a color purity by acquiring an ideal transmission rate curve and improve contrast and rise a color temperature of PDP. CONSTITUTION: A front filter comprises a transmission rate of a blue color light(71) corresponding to a 454nm being from 50% to 80%, a transmission rate of a green color light(72) corresponding to a 525nm being from 40% to 80%, a transmission rate of an orange color light(73) corresponding from a 580nm to a 592nm being from 5% to 30%, a transmission rate of a red color light(74) corresponding from a 610nm to a 630nm being from 50% to 80%, and a transmission rate of a near infrared ray(75) corresponding from a 850nm to a 950nm being from 1% to 10%.