Downward light vertical screen optical polarizer

The utility model belongs to the technical field of polaroids, and particularly relates to a downward light vertical screen optical polaroid which comprises a transparent light-transmitting area, an electrostatic shielding layer arranged below the light-transmitting area, an optical function layer arranged below the electrostatic shielding layer and an optical compensation layer arranged below the optical function layer. The electrostatic shielding layer is used for improving the anti-electrostatic shielding performance, the optical function layer is used for converting incident light into polarized light, and the optical compensation layer is used for reducing the transmissivity in an orthogonal polarization state; the electrostatic shielding layer, the optical function layer and the optical compensation layer are sequentially bonded and fixed; the optical compensation layer comprises a first optical compensation film, a second optical compensation film and a third optical compensation film. The defects in t