Organic light emitting diode display

A display device, comprising:

• a first pixel, which comprises a first semiconductor layer including a plurality of channel areas;
• a second pixel, which comprises a second semiconductor layer including a plurality of channel areas, and is adjacent to the first pixel in a first direction;
• a first scan line, which crosses the first semiconductor layer and the second semiconductor layer;
• a second scan line, which is separated from the first scan line in a second direction perpendicular to the first direction, and crosses the first semiconductor layer and the second semiconductor layer;
• a data line and a driving voltage line, which cross the first scan line and the second scan line, the driving voltage line being configured to transmit a driving voltage;
• a connection semiconductor layer, which is disposed at a same layer as the first semiconductor layer and the second semiconductor layer;
• and
• a common initialization voltage line, which is electrically connected to the connection semiconductor layer to transmit an initialization voltage commonly to the first pixel and the second pixel,
• wherein each of the first pixel and the second pixel comprises:
• a first transistor including a first channel area of the plurality of channel areas, and a driving gate electrode overlapping the first channel area;
• and
• a fourth transistor including a fourth channel area of the plurality of channel areas, a fourth gate electrode connected to the second scan line, a fourth source area and a fourth drain area connected to the fourth channel area,
• wherein
• the fourth drain area is electrically connected to the driving gate electrode in each of the first pixel and the second pixel, and
• the fourth source areas of both the first pixel and the second pixel are connected to the connection semiconductor layer.

A display device, comprising:

• a first pixel, which comprises a first semiconductor layer including a plurality of channel areas;
• a second pixel, which comprises a second semiconductor layer including a plurality of channel areas, and is adjacent to the first pixel in a first direction;
• a first scan line, which crosses the first semiconductor layer and the second semiconductor layer;
• a second scan line, which is separated from the first scan line in a second direction perpendicular to the first direction, and crosses the first semiconductor layer and the second semiconductor layer;
• and
• a data line and a driving voltage line, which cross the first scan line and the second scan line, the driving voltage line being configured to transmit a driving voltage,
• wherein each of the first pixel and the second pixel comprises:
• a first transistor including a first channel area of the plurality of channel areas, and a driving gate electrode overlapping the first channel area;
• and
• a fourth transistor including a fourth channel area of the plurality of channel areas, a fourth gate electrode connected to the second scan line, a fourth source area and a fourth drain area connected to the fourth channel area and opposing each other,
• wherein
• the fourth drain area is electrically connected to the driving gate electrode in each of the first pixel and the second pixel, and
• the fourth source area of the first pixel and the fourth source area of the second pixel are physically and electrically connected to each other.

An organic light emitting diode (OLED) display device, comprising:

• a substrate;
• a pixel unit including first and second pixels disposed in a first row of the substrate, and third and fourth pixels disposed in a second row adjacent to the first row, said first and third pixels are located in a first column and said second and fourth pixels are located in a second column with said first column being adjacent to said second column, said first row is a separate and different row from said second row and said first column is a separate and different column from said second column;
• a scan line and a previous scan line for applying a scan signal and a previous scan signal, respectively, to the pixel unit;
• a data line and a driving voltage line crossing the scan line and the previous scan line for applying a data signal and a driving voltage, respectively, to the pixel unit;
• a common initialization voltage line disposed between the first and second row, said common initialization voltage line disposed between the first and third pixels and between the second and fourth pixels, and said common initialization voltage line commonly connected to at least two of the first, second, third and fourth pixels, for applying an initialization voltage;
• and
• a contact hole connection electrode formed in a same layer as the data line and driving voltage line are formed, and said contact hole electrode is electrically connected to at least two of the first, second, third and fourth pixels and surrounded by the first, second, third and fourth pixels,
• wherein
• the common initialization voltage line is connected to the contact hole connection electrode through a common initialization contact hole surrounded by the first, second, third and fourth pixels, and
• said common initialization voltage line applies the initialization voltage to at least two of the first, second, third and fourth pixels via the contact hole and the contact hole connection electrode.