To prevent generation of peel-off between a metal partition wall and a substrate in a display panel using the metal partition wall.

The metal partition wall is arranged between two sheets of substrates forming an enclosed space by being arrayed in opposition and divides unit light-emitting areas within the enclosed space. Through-holes 20Aa are formed in a matrix at a part 20A opposing a display area of a rear-face glass substrate 4 of the metal partition wall 20, dummy through-holes 20Bb are formed at a part 20B opposing a non-display area of the rear-face glass substrate 4, and their surface is coated with an insulation layer 20a.