Patent ID: 10146086

Abstract:
The present invention provides a mirror display that sufficiently prevents a decrease in the screen luminance in the display mode while sufficiently increasing the reflectance in the mirror mode, and also gives excellent production efficiency. The mirror display includes a half mirror plate including at least two half mirror layers; and a display device arranged on the backside of the half mirror plate, the display device including a polarizer, the at least two half mirror layers including at least one reflective polarizer, the transmission axis of the polarizer and the transmission axis of the at least one reflective polarizer being substantially parallel to each other or substantially perpendicular to each other, the mirror display configured to switch a display mode allowing display light to be emitted from the display device and to pass through the half mirror plate and a mirror mode preventing display light from being emitted from the display device, the mirror display exhibiting a sum of the transmittance in the display mode and the reflectance in the mirror mode of 100% or higher.