Patent ID: 9622299
Date: 2017-04-11
CPC Classifications: G09F,H05B

Claim:
1. A display device comprising: a substrate having a front surface, a back surface opposite to the front surface, and a side surface between the front surface and the back surface, the substrate including light-emitting elements provided on the front surface; a mask having a mask surface and a side wall provided around a periphery of the mask surface and projecting backwardly from the mask surface, the side wall having an inner peripheral side surface and a rear end surface, the mask being provided on the front surface of the substrate so that the mask surface faces the front surface of the substrate and the side wall surrounds the side surface of the substrate; a case having an inner peripheral wall protruding forwardly from a step end surface of the case, the inner peripheral wall having an outer peripheral side surface and a forward end surface, the case being provided on the back surface of the substrate to sandwich the substrate between the mask and the case, the outer peripheral side surface facing the inner peripheral side surface of the mask to define a first region between the outer peripheral side surface and the inner peripheral side surface of the mask, the step end surface facing the rear end surface of the mask to define a second region between the step end surface and the rear end surface of the mask; and a sealing member provided in the first region, the second region, and a third region provided between the first region and the second region, the sealing member having a first protrusion which is in contact with the step end surface of the case in the third region.