| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical filter for electronic display which prevents total reflection of a glass substrate as a constitutional member, thereby obtaining a better contrast image without degradation for a long term when being fitted to the front face of an electronic display. <P>SOLUTION: An optical filter for an electronic display has 25-60% of luminous transmittance by a C light source. The optical filter includes a glass substrate that has 0.7-5.0 mm of thickness and 40-85% of luminous transmittance by the C light source, and at least one kind of functional layer laminated on the glass substrate. <P>COPYRIGHT: (C)2013,JPO&INPIT |
