Organic light emitting display device having light blocking layer connecting adjacent subpixels and method for manufacturing the same

An organic light emitting display device comprising:

• a first subpixel and a second subpixel disposed to be spaced apart from one another on a first substrate;
• a data line positioned between the first subpixel and the second subpixel and disposed in a vertical direction;
• sensing lines having a vertical sensing line positioned on one side of the second subpixel and disposed in the vertical direction, and a horizontal sensing line disposed in a horizontal direction intersecting with the data line and connected to the vertical sensing line,
• wherein the horizontal sensing line is formed of a source/drain metal layer present on the first substrate, and one portion of the horizontal sensing line connected to a first electrode of a sensing transistor of the first subpixel and the other portion of the horizontal sensing line connected to a first electrode of a sensing transistor of the second subpixel are positioned in a region intersecting with the data line, and
• wherein the horizontal sensing line is electrically connected by a connection electrode formed of a gate metal layer below the source/drain metal layer present on the first substrate.

An organic light emitting display device comprising:

• a first subpixel and a second subpixel disposed to be spaced apart from one another on a first substrate;
• a data line positioned between the first subpixel and the second subpixel and disposed in a vertical direction;
• sensing lines having a vertical sensing line positioned on one side of the second subpixel and disposed in the vertical direction, and a horizontal sensing line disposed in a horizontal direction intersecting with the data line and connected to the vertical sensing line,
• wherein the horizontal sensing line is formed of a pixel electrode present on the first substrate, and one portion of the horizontal sensing line connected to a first electrode of a sensing transistor of the first subpixel and the other portion of the horizontal sensing line connected to a first electrode of a sensing transistor of the second subpixel are positioned in a region intersecting with the data line, and
• wherein the horizontal sensing line is electrically connected by a connection electrode formed of a light blocking layer below a source/drain metal layer present on the first substrate.

A method for manufacturing an organic light emitting display device including a display panel having a first subpixel and a second subpixel disposed to be spaced apart from one another on a first substrate, a data line disposed in a vertical direction between the first subpixel and the second subpixel, and sensing lines having a vertical sensing line disposed on one side of the second subpixel in the vertical direction and a horizontal sensing line disposed in a horizontal direction intersecting with the data line, the method comprising:

• forming a light blocking layer, a buffer layer, a semiconductor layer, and photoresist on the first substrate;
• patterning the light blocking layer, the buffer layer, and the semiconductor layer using the photoresist to form a portion of the light blocking layer, as a connection electrode, and leave a portion of the semiconductor layer on the connection electrode to form a dummy semiconductor layer;
• removing the photoresist and forming an interlayer insulating layer covering the light blocking layer, the connection electrode, the buffer layer, the semiconductor layer, and the dummy semiconductor layer on the first substrate;
• forming a first contact hole in the interlayer insulating layer such that one side of the light blocking layer is exposed, and forming a second contact hole in the interlayer insulating layer such that the other side of the light blocking layer is exposed;
• and
• forming a source/drain metal layer on the interlayer insulating layer such that one portion of the source/drain metal layer is in contact with one side of the light blocking layer and the other portion of the source/drain metal layer is in contact with the other side of the light blocking layer to electrically connect the vertical sensing line and the horizontal sensing line.