An organic electroluminescent device includes first and second substrates spaced apart from each other, the first and second substrates including a pixel region, an array element layer on an inner surface of the first substrate, the array element layer including a switching element and a driving element connected to the switching element, an organic electroluminescent diode on an inner surface of the second substrate, an absorbent element on one of the array element layer and the organic electroluminescent diode, a protective layer on the absorbent element, and a connection electrode electrically connecting the array element layer and the organic electroluminescent diode.