Display device having a mesomorphic diffraction grating layer adjacent a polymer dispersed layer

A display apparatus, including:

• a display device, comprising:
• a pair of electrode plates each comprising a substrate and an electrode thereon including at least one substrate having thereon a transparent electrode, and a first display layer and a second display layer disposed between the electrode plates;
• wherein said first display layer comprises a polymer matrix and a low-molecular weight mesomorphic compound dispersed in the polymer matrix, and said second display layer comprises a diffraction grating and a low-molecular weight mesomorphic compound;
• means for applying voltage to the display device;
• means for separating light emitted by a light source into light fluxes having three primary colors and projecting the light fluxes to the display device, thereby separating the light fluxes into transmitted light fluxes and scattered light fluxes through the display device;
• and
• means for projecting the transmitted light fluxes onto a screen.