Patent ID: 9274331
Filing Date: 2016-03-01
CPC Classification: G02B,Y10T

Claim Text:
1. Electrowetting optical element comprising a first electrode layer stack and a second electrode layer stack, and a containment space formed between said first electrode layer stack and said second electrode layer stack, one or more pixel walls extending between said first and second electrode stacks for defining sides of said containment space, said containment space at least containing a polar liquid and a non-polar liquid, the polar and non-polar liquids being immiscible with each other, said first electrode layer stack comprising said second electrode layer stack comprising a superstrate and a second electrode layer having a second interface surface with said containment space, said hydrophobic first interface surface having a higher hydrophobicity then said second interface surface, and said electrowetting optical element being arranged for enabling powering of said first and second electrode layers for rearranging said polar liquid relative to said non-polar liquid, wherein said pixel walls being fixedly mounted on said second interface surface of said second electrode layer stack and extending towards said first electrode layer, wherein an end face of said one or more pixel walls opposite said first electrode layer stack faces said hydrophobic first interface surface in a loose manner, said one or more pixel walls comprise a further hydrophobic surface formed on said the end face of said pixel walls opposite said first electrode layer.