Patent ID: 8673674
Filing Date: 2014-03-18
Classification: H01L

Abstract:
1. A method of fabricating an organic light emitting diode (OLED) display device comprising a substrate, a plurality of data lines, a plurality of scan lines, and a plurality of pixels at crossing regions of the data lines and the scan lines, the pixels comprising a first pixel, a second pixel adjacent to the first pixel in a scan line direction, and a third pixel adjacent to the first pixel in a data line direction, the method comprising: forming a switching transistor and a driving transistor on the substrate for each of the pixels, wherein the switching transistor comprises a first semiconductor layer, a first gate insulating layer, first and second source/drain electrodes, and a first gate electrode, and the driving transistor comprises a second semiconductor layer, a second gate insulating layer, third and fourth source/drain electrodes, and a second gate electrode; forming each of the scan lines coupled to the first gate electrode of the switching transistor of respective pixels from among the plurality of pixels, and each of the data lines coupled to the first source/drain electrode of the switching transistor of respective pixels from among the plurality of pixels; forming a protection layer on the switching transistor and the driving transistor of each of the pixels; and forming, for each of the pixels, an OLED on the protection layer, the OLED comprising a lower electrode coupled to the fourth source/drain electrode of the driving transistor, an organic layer comprising at least one emission layer (EML), and an upper electrode, wherein the second semiconductor layers of the first pixel, the second pixel, and the third pixel extend in different lengthwise directions.