Method of fabricating a polarized color filter

A method of fabricating a polarized color filter, comprising:

• providing a transparent substrate, wherein the transparent substrate is coated with a photoresist layer;
• preparing a wave-shaped mask, wherein the wave-shaped mask comprises a periodic wave-shaped surface and a plate-shaped surface opposite to the periodic wave-shaped surface, and the wave-shaped mask comprises an elastomeric transparent substrate and a light-penetrable thin film layer, in which the light-penetrable thin film layer is disposed on an upper surface of the elastomeric transparent substrate, and the light-penetrable thin film layer and the upper surface of the elastomeric transparent substrate are in periodic wave shape;
• making the periodic wave-shaped surface be in contact with the photoresist layer;
• treating the photoresist layer with a primary exposure process to obtain a first exposure zone;
• applying an external force to the wave-shaped mask to deform the wave-shaped mask;
• rotating the transparent substrate by a predetermined degree;
• treating the photoresist layer with a secondary exposure process to obtain a second exposure zone;
• developing the photoresist layer to obtain a photoresist pattern layer;
• coating a metal layer on the transparent substrate with the photoresist pattern layer;
• and
• removing the photoresist pattern layer and a portion of the metal layer on the photoresist pattern layer;
• whereby the remaining metal layer forms a periodic hole structure.