A color conversion filter substrate includes a transparent support substrate,
at
least one color conversion filter layer formed of a resin film containing a fluorescence
colorant with a thickness of at least 5 m and arranged on the support substrate
in a desired pattern, and a transparent gas-barrier layer formed in a flat film
for covering the color conversion layer. The gas-barrier layer has a water-vapor
permeability of 1.0 g/m224 hr or less, and a portion covering
the color conversion filter layer with a thickness tPL expressed by
the following equation,
wherein W is a minimum width of a pixel.
