| 摘要 |
The present invention discloses a color filter includes a substrate layer and a medium grating layer, wherein the medium grating layer, arranged on the substrate layer, has a grating structure of periodic arrangement. The color filter is characterized in that: the medium grating layer is provided with a metal profiling film, which covers the ridge portion of the grating structure, one or two sides of the lateral portion of the grating structure, and a part of the groove portion of the grating structure, with the area of the groove portion of the grating structure covered by the metal profiling film occupying 30%-95% of the total area of the lateral portion and the groove portion. By providing the metal profiling film, this invention can break the condition of the original metal surface plasmon resonance, and reduce influence of the incident angle of light on the resonance condition, thus achieving the filtering effect within a relatively wide range of angle. |
