Patent ID: 8242986
Filing Date: 2012-08-14
Classification: G09G,H01L,H04W,Y02D

Abstract:
1. A display device having a pixel, the pixel comprising: a light emitting element; a source signal line; a gate signal line; a first transistor having a first electrode, a second electrode, and a gate electrode, wherein the first electrode of the first transistor is electrically connected to one electrode of the light emitting element; a second transistor having a first electrode, a second electrode, and a gate electrode, wherein the first electrode of the second transistor is electrically connected to the source signal line, the second electrode of the second transistor is electrically connected to the gate electrode of the first transistor, and the gate electrode of the second transistor is electrically connected to the gate signal line; a capacitance element having a first electrode and a second electrode, wherein the first electrode of the capacitance element is electrically connected to the gate electrode of the first transistor and the second electrode of the second transistor, and the second electrode of the capacitance element is electrically connected to the first electrode of the first transistor and the one electrode of the light emitting element; and a current supply line, which is able to supply current to the light emitting element, directly connected to the second electrode of the first transistor, wherein an another electrode of the light emitting element is electrically connected to a first line, and wherein the first transistor and the light emitting element are connected in series between the current supply line and the first line.