Light-emitting element display device

A light-emitting element display device comprising:

• a thin film transistor substrate including transistors respectively controlling the amounts of light emission of a plurality of sub-pixels arranged in a display region;
• and
• a color filter substrate arranged to overlap with the thin film transistor substrate and including a color filter allowing light in a predetermined wavelength range to pass therethrough in at least one of the plurality of sub-pixels, wherein
• the thin film transistor substrate includes
• a light-emitting organic layer covering the entire display region and emitting light in respective light-emitting regions in the plurality of sub-pixels,
• an insulating bank formed of an insulating material around each of the light-emitting regions, including an inclined surface being closer to the color filter substrate according to increasing in thickness with increasing distance from the light-emitting region, and
• a fluorescent layer formed on the inclined surface and excited by light of the light-emitting region to thereby emit light.