Vision protection method with PI's PI function

摘要

The present invention relates to a method for protecting eyesight having a PPI function of a VR, and when watching an image signal through a tuner circuit for a longer time, the vision protection image stored in a memory is mixed with the PIP function and transmitted to a monitor. If it is determined that the protection image has no fatigue in vision, the vision protection image is enlarged and output so that there is no fatigue in the user's vision.