External light-shielding layer and display apparatus having the same for improving contrast ratio of the display apparatus

A display apparatus comprising:

• a panel assembly including a plurality of light-emitting cells, each of the plurality of light-emitting cells being divided into a light-emitting region and a non light-emitting region surrounding the light-emitting region, as viewed from a viewer, wherein the light-emitting region emits red, blue or green color light to, in combination, render full spectrum color light, and the non light-emitting region does not emit any color light;
• and
• a display filter disposed in front of the panel assembly and including an external light-shielding layer, the external light-shielding layer having light-shielding patterns formed on a side of the external light-shielding layer,
• wherein the total area of all of the light-emitting regions occupies about 60% or more of the total area of the plurality of light-emitting cells, and
• wherein a bias angle formed by an extension direction of the light-shielding patterns and a longitudinal side of the panel assembly is in the range between about 1.5 and about 4 degrees.