APPARATUS FOR ACHIEVING ACTIVE MATRIX OLED DISPLAY DEVICE OF UNIFORM LUMINANCE AND METHOD THEREOF, ESPECIALLY ACTING AS COMPENSATION UNIT HAVING AUTOMATIC CONTROL FUNCTION

摘要

PURPOSE: An apparatus for achieving an active matrix OLED display device of uniform luminance and a method thereof are provided to improve image uniformity of the display device by acting as a compensation unit having an automatic control function. CONSTITUTION: The apparatus achieves uniform luminance of an active matrix OLED comprising a number of pixel devices. According to each pixel device, a switch unit(1) has two input ports and output ports connected to a data line(D) and a scan line(S) respectively. A storing unit(4) has one port connected to a supply line(P) and another port connected to the output port of the switch unit. A compensation unit(3) has to input ports connected to the supply line and the output port of the switch unit respectively. A driver unit(2) has an input port connected to the output port of the compensation unit, and an input port connected to a connection part of the output port of the switch unit and one input port of the compensation unit, and an output port. And an OLED(5) has an input port connected to the output port of the driver unit and a grounded output port.