Light emission device including a heat dissipation plate and a thermal diffuser plate

A display device comprising:

• a display panel having a plurality of pixels arranged in rows and columns;
• and
• a light emission device disposed behind the display panel and configured to function as a light source for the display device,
• wherein the light emission device comprises:
• a first substrate having a first side and a second side opposite the first side;
• a second substrate having a first side and a second side opposite the first side, the first sides of the first and second substrates facing each other;
• an electron emission unit located on the first side of the first substrate;
• a phosphor layer located on the first side of the second substrate and adapted to be excited by electrons emitted from the electron emission unit;
• an anode electrode located on the phosphor layer;
• a heat dissipation plate located at the second side of the first substrate;
• and
• a thermal diffuser plate located on the second substrate and thermally coupled to the heat dissipation plate, the thermal diffuser plate being configured to transmit light emitted by the phosphor layer.