Patent ID: 8823612
Filing Date: 2014-09-02
Classification: G09G,H01L,H05B,Y02B

Abstract:
1. An organic electro-luminescence (EL) display device comprising: above a substrate, plural scanning lines; plural data lines; emissive pixels disposed near cross-points of the plural scanning lines and the plural data lines; and power supply lines for supplying currents to the emissive pixels, wherein the emissive pixels each have: a switching thin film transistor having a gate to which a scan signal is supplied via one of the plural scanning lines; a current control thin film transistor for controlling a current to be applied to the emissive pixel, in accordance with a voltage applied to a gate of the current control thin film transistor, the voltage being determined based on a data voltage supplied from one of the plural data lines to the gate of the current control thin film transistor via the switching thin film transistor; and an organic EL element to which a current is supplied from one of the power supply lines via the current control thin film transistor, the organic EL element including a lower electrode, an organic light-emissive layer, and an upper electrode, the organic EL display device further comprising: a planarization layer provided above a layer in which the plural scanning lines and the plural data lines are disposed; and the power supply lines, the lower electrodes, and auxiliary lines electrically connected to the upper electrode, which are disposed above the planarization layer, wherein the power supply lines have points where the power supply lines cross the plural scanning lines, having the planarization layer disposed between the power supply lines and the plural scanning lines, and points where the power supply lines cross the plural data lines, having the planarization layer disposed between the power supply lines and the plural data lines.