80‐3: Novel Switchable Half Wave Retarder with In‐cell Pancharatnam Berry Lens

To realize a multi‐layer Pancharatnam Berry lens and switchable half wave retarder lens system, we fabricated the switchable half wave retarder equipped with the in‐cell Pancharatnam Berry Lens. This switchable half wave retarder alone achieved a modulation efficiency of 95% on‐axis and 80% or more at polar 45 degree over wide wavelength. In addition, the in‐cell Pancharatnam Berry Lens fabricated and demonstrated the variable focus effect.