Display device

A display device, comprising:

• a display panel;
• and
• a light source unit provided along an edge portion of the display panel, wherein
• the display panel comprises:
• a first transparent substrate;
• a second transparent substrate facing the first transparent substrate;
• a liquid crystal layer sealed between the first transparent substrate and the second transparent substrate and including a polymer dispersed liquid crystal containing polymers and liquid crystal molecules;
• a third transparent substrate facing the first transparent substrate;
• and
• a selective reflective layer located between the first transparent substrate and the third transparent substrate, wherein
• the selective reflective layer is configured to transmit light in a blue wavelength range and light in a green wavelength range and reflect light in a red wavelength range at a predetermined incident angle relative to its normal.