Display device and head-mounted display

A display device comprising:

• a display panel to display an image, the display panel comprising:
• a plurality of pixel groups;
• and
• a liquid crystal layer containing liquid crystal molecules shifting from a first alignment state to a second alignment state corresponding to an electric field applied by the plurality of pixel groups;
• a lighting device to supply light to the display panel for image display, the lighting device comprising a plurality of light sources corresponding to the plurality of pixel groups;
• a panel controller driving the plurality of pixel groups by sequentially scanning the plurality of pixel groups;
• and
• a lighting controller controlling driving of the plurality of light sources in synchronization with driving the plurality of pixel groups, wherein
• each light source of the plurality of light sources includes at least a blue light emitting element to emit blue light and a red phosphor to emit red light when excited by the blue light from the blue light emitting element,
• the red phosphor contains a fluoride complex red phosphor with manganese used as an activator and an alkaline-earth silicon nitride red phosphor with europium used as an activator,
• the fluoride complex red phosphor has a content ratio in a range from 75% to 85% inclusive and the alkaline-earth silicon nitride red phosphor has a content ratio in a range from 15% to 25% inclusive, and
• the alkaline-earth silicon nitride red phosphor has a red light afterglow time of approximately 1/100 to 1/1000 of the afterglow time of the fluoride complex red phosphor,
• the lighting controller controls each light source of the plurality of light sources to:
• maintain the each light source in a turn-off period until a start of a hold period during which the second alignment state of the liquid crystal molecules is held while a pixel group of the plurality of pixel groups corresponding to the each light source is driven by the panel controller;
• and
• make a shift to a turn-on period of the each light source after a predetermined period of time has elapsed since the start of the hold period.