Lcos display unit and method for forming the same

A method for forming a Liquid Crystal on Silicon (LCOS) display unit, comprising:

• providing a silicon substrate;
• forming a pixel switch circuit layer on the silicon substrate, the pixel switch circuit layer including a Metal-Oxide-Semiconductor Field Effect Transistor (MOSFET);
• forming a light shielding layer on the pixel switch circuit layer;
• forming an insulation layer on the light shielding layer;
• and
• forming a micromirror layer on the insulation layer;
• the micromirror layer, the insulation layer and the light shielding layer constituting a capacitor, and the micromirror layer being electrically connected with a source of the MOSFET, wherein the light shielding layer is grounded.