A process where a sheet of clear material containing a liquid crystal display (LCD) is used to block light from a lamp from reaching a surface on the other side of the clear sheet. Pixels in the LCD are turned on and off to project a specific image.
In additive manufacturing, LCD masking is used to project a pattern of light onto a build layer. This can be used to solidify a photopolymer in vat photopolymerization with an ultraviolet lamp or to fuse powder in powder bed fusion with an infrared lamp.
Categories: Manufacturing Term
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