Display device including a bump with low water vapor transmission rate

A display device, comprising:

• a first substrate;
• a second substrate disposed over the first substrate, wherein
• the second substrate has a lateral dimension greater than the first substrate;
• a display layer disposed between the first substrate and the second substrate, and the display layer having a boundary;
• a bump connected to the second substrate and protruding in a direction toward the opposite second first substrate, and
• the bump being disposed around the boundary and laterally spaced from the first substate in a top view of the display device;
• and a sealing material filled between the bump and the display layer,
• wherein a water vapor transmission rate of the bump is less than a water vapor transmission rate of the sealing material,
• the sealing material is located in a space defined by the first substrate, the bump, and the second substrate, and
• a maximum height of the bump, measured from the second substrate to which the bump is connected in a direction toward the first substrate, is greater than a minimum vertical distance between an inner surface of the first substrate and an inner surface of the second substrate.