Display device manufacturing method and apparatus thereof

A manufacturing apparatus of a display device comprising:

• a panel forming device which forms a display panel by sandwiching a resin which is hardened by any one of electromagnetic waves, radioactive rays and electron beams and heat between an element substrate having a display region in which a plurality of light emitting elements are formed and a sealing substrate in such a manner that the resin covers the display region;
• a radiation device which radiates at least one of electromagnetic waves, radioactive rays and electron beams to the display panel thus hardening first portions of the resin and leaving second portions of the resin in a state softer than the first portions;
• a separation device which separates the display panel at positions corresponding to the second portions;
• and
• a heating device which heats the separated display panel thus further hardening the resin.

A display device comprising:

• an element substrate which includes a display region in which a plurality of light emitting elements are formed;
• a sealing substrate;
• and
• a resin layer which is sandwiched between the element substrate and the sealing substrate and covers the display region, wherein
• on at least one side of the display device, a region at an edge portion of the resin layer exhibits a higher thermal hardening rate and a lower radiation hardening rate attributed to at least one of electromagnetic waves, radioactive rays and electron beams compared to a region inside the region at the edge portion of the resin layer.