Patent ID: 6922224

Claim:
A silicon-backed microdisplay structure formed on a silicon substrate, the structure comprising: a silicon-side conductive layer formed directly on the silicon substrate; a silicon-side passivation layer 2000-6000 angstroms thick formed directly on the silicon-side conductive layer; a cover glass sheet; a glass-side conductive layer formed directly on the cover glass sheet; a glass-side passivation layer formed directly on the glass-side conductive layer; and liquid crystal material disposed directly between the glass-side passivation layer and the silicon-side passivation layer; the glass-side passivation layer being about 300-900 angstroms thick and comprising a material selected from the group consisting of CeO 2 , In 2 O 3 , MgO, SnO 2 , Ta 2 O 5 , TiO 2 , Y 2 O 3 , SiO 2 , ZnO, Al 2 O 3 , BeO, MgF 2 and combinations thereof, such that the work function balance of said silicon-backed microdisplay structure is in the range of approximately 0.2 eV to 0.4 eV.