Patent ID: 9601052
Date: 2017-03-21
CPC Classifications: G09G,H01L

Claim:
1. An organic light-emitting diode (OLED) display, comprising: a display unit comprising a plurality of pixels, wherein each of the pixels comprises at least one thin film transistor (TFT), at least one capacitor, and at least one OLED; a scan driver configured to transfer a plurality of scanning signals to the display unit; a light emission driver configured to transfer a plurality of light-emitting signals to the display unit; a data driver configured to transfer a plurality of data signals to the display unit; a DC power source unit configured to transfer direct current (DC) power to the display unit; and a controller configured to control the scan driver, the light emission driver, the data driver, and the DC power source unit, wherein the at least one TFT comprises a driving transistor configured to control a driving current flowing to the OLED, wherein the driving transistor comprises a first gate electrode formed over a first insulation layer and configured to receive a data voltage from the data driver and a second gate electrode configured to receive a DC voltage from the DC power source unit, wherein the OLED display further comprises a second insulation layer that is interposed between and in direct physical contact with the first and second gate electrodes, wherein a contact electrode is electrically connected to the first gate electrode, wherein the contact electrode is electrically insulated to the second gate electrode by a third insulation layer, wherein a first contact hole is formed in the second insulation layer, wherein a second contact hole is formed in the third insulation layer, and wherein a portion of the contact electrode is inserted into the first and second contact holes and is in direct physical contact with the first gate electrode.