Organic electroluminescent display device

An organic electroluminescent device, comprising:

• first and second substrates attached by a seal pattern;
• array elements including a plurality of thin film transistors formed on the first substrate;
• a color changing medium formed on a rear surface of the second substrate, wherein the color changing medium has a black matrix that defines sub-pixel regions having red, green and blue color changing layers respectively corresponding to each sub-pixel region of a pixel;
• a first electrode formed on a rear surface of the color changing medium;
• an organic electroluminescent layer formed on a rear surface of the first electrode, wherein the organic electroluminescent layer emits blue light;
• a second electrode formed on a rear surface of the organic electroluminescent layer, the second electrode corresponding to the sub-pixel region;
• a plurality of electrode separators on the rear surface of the first electrode corresponding in position to the black matrix in defining the sub-pixel regions;
• and
• a plurality of conductive connectors formed between the first and second substrates, each conductive connector electrically connecting an array element to the second electrode in each sub-pixel region.

An organic electroluminescent device, comprising:

• first and second substrates attached by a seal pattern;
• array elements including a plurality of thin film transistors, each thin film transistor being formed on the first substrate and disposed corresponding to each sub-pixel regions;
• a first electrode formed on a rear surface of the second substrate;
• an organic electroluminescent layer formed on a rear surface of the first electrode, the organic electroluminescent layer including red, green and blue luminous layers each corresponding to a separate sub-pixel region;
• a second electrode on a rear surface of the organic electroluminescent layer in each of the sub-pixel regions;
• a buffer electrode on a rear surface of the second electrode in each of the sub-pixel regions;
• and
• a plurality of conductive connectors formed between the first and second substrates, each conductive connector electrically connecting an array element to the buffer electrode in each sub-pixel region.