Organic light emitting display device with enhanced emitting property and preparation method thereof

A method of manufacturing an organic light emitting display device, the method comprising:

• forming semiconductor layers on a substrate;
• forming power supply lines on the substrate to be spaced apart from the semiconductor layers;
• forming insulation layers on the semiconductor layers and the power supply lines;
• forming first electrodes on the insulation layers;
• forming pixel defining layers to define the first electrodes in units of pixels;
• forming light emitting layers on the first electrodes defined in units of pixels by the pixel defining layers;
• forming through-holes to pass through the insulation layers and the pixel defining layers on the power supply lines to expose some portions of the power supply lines;
• and
• forming a second electrode on the light emitting layers and the pixel defining layers to electrically couple the second electrode to the power supply lines through the through-holes.

An organic light emitting display device comprising:

• a substrate;
• semiconductor layers on the substrate;
• power supply lines on the substrate to be spaced apart from the semiconductor layers;
• insulation layers on the semiconductor layers and the power supply lines;
• first electrodes on the insulation layers and electrically coupled to the semiconductor layers;
• pixel defining layers defining the first electrodes in units of pixels;
• light emitting layers on the first electrodes defined by the pixel defining layers;
• through-holes on the power supply lines and passing through the insulation layers and the pixel defining layers;
• and
• a second electrode on the light emitting layers and the pixel defining layers and electrically coupled to the power supply lines through the through-holes.

A method of manufacturing an organic light emitting display device, the method comprising:

• forming semiconductor layers on a substrate;
• forming power supply lines on the substrate to be spaced apart from the semiconductor layers;
• forming insulation layers on the semiconductor layers and the power supply lines;
• forming first electrodes on the insulation layers to be electrically coupled to the semiconductor layers;
• forming pixel defining layers on the insulation layers to define the first electrodes in units of pixels;
• forming light emitting layers on the first electrodes defined in units of pixels;
• forming through-holes to pass through the insulation layers and the pixel defining layers to expose at least some portions of the power supply lines;
• and
• forming a second electrode on the light emitting layers and the pixel defining layers to electrically couple the second electrode to the power supply lines through the through-holes.