TFT screen structure and smudging membrane structure applied to TFT screen

The invention discloses a TFT screen structure and a smudging membrane structure applied to the TFT screen. A polarized light plate is arranged on the screen body of the TFT screen; a smudging membrane is covered on the polarized light plate; the smudging membrane comprises a transparent substrate covered on the TFT screen; and PVA layers are arranged in both the polarized light plate and the transparent substrate. Light emitted by the TFT screen shows pattern and color effects after passing through the polarized light plate; the PVA layer on the smudging membrane has relatively low absorptivity to polarized light emitted by the TFT screen, but has relatively high absorptivity to ambient light namely the non-polarized light, so that the degree of influence of the ambient light on the display effect of the TFT screen is greatly reduced, the load needed by the TFT screen for working can be effectively reduced, the operation stability and service life of the TFT screen can be ensured, andmeanwhile, the improveme