Organic electroluminescent display device and method of fabricating the same

A method of fabricating an organic electroluminescent display device, comprising steps of:

• forming an array element and connection pattern on a first substrate;
• forming a connection pattern electrically connected to the array element;
• forming an organic electroluminescent diode on a second substrate;
• forming a seal pattern along a peripheral portion between the first and second substrates such that the array element and the organic electroluminescent diode face each other;
• performing a first bonding of the first and second substrates within a vacuum chamber by pressing the seal pattern to electrically interconnect the connection pattern and the organic electroluminescent diode, the first bonding providing a first space between the first and second substrates having a first pressure less than an ambient atmospheric pressure;
• performing a first hardening of the seal pattern;
• performing a second bonding of the first and second substrate in the vacuum chamber at the ambient atmospheric pressure;
• and
• performing a second hardening of the seal pattern.