Patent ID: 8783875

Claim:
An optical machine device suited for a display system, comprising: at least one light source for emitting a illuminating beam; a polarizing beam splitter for receiving the illuminating beam directed without implementing of color separating/filitering, and correspondingly forming a polarized incident beam; a liquid crystal panel having a plurality of liquid crystals for receiving the polarized incident beam and correspondingly forming a reflective beam based on a transmittance of at least one of the liquid crystals, wherein the reflective beam passes through the polarizing beam splitter to form a polarized reflective beam; a projecting lens for receiving the polarized reflective beam and correspondingly forming a projected beam projected out of the optical machine device; and a controller respectively electrically connected to the at least one light source and the liquid crystal panel, generating a control signal, without a human selection, to control a luminosity of the at least one light source and a direction change of at least one part of the liquid crystals to vary the transmittances of the at least one part of the liquid crystals of the liquid crystal panel, only based on at least one data related to a luminous flux of at least one of the illuminating beam, the polarized incident beam, the reflective beam, the polarized reflective beam and the projected beam.