Organic Light Emitting Display Device and Method and Driving Circuit for Prolonging Half-life Period Thereof

A method for prolonging a half-life period of an OLED device, comprising:

• a) detecting a power detection signal from the OLED device while the OLED device turns on;
• b) generating a test image signal;
• c) transmitting the test image signal when a selection unit receives the power detection signal;
• d) driving the OLED panel to display a test image according to the test image signal;
• e) detecting a real-time current from a power circuit to the OLED panel and comparing the detected real-time current with a predetermined current;
• f) adjusting the real-time current complying with the predetermined current and holding the real-time current complying with the predetermined current if the real-time current is lower than the predetermined current;
• g) transmitting the normal image signal when the selection unit receives the normal image signal, driving the OLED panel according to the normal image signal and providing the hold real-time current complying with the predetermined current to the OLED panel so that the OLED panel displays the normal image.

A driving circuit for driving an organic light emitting display (OLED) device, comprising:

• a power detection unit for generating a power detection signal when an OLED device having an OLED panel turns on;
• a testing image generation unit for generating a testing image signal;
• a selection unit for selecting to transmit the test image signal upon receiving the power detection signal;
• a timing control unit for driving the OLED panel to display a test image according to the test image signal;
• a current-adjusting unit for adjusting a real-time current complying with a predetermined current and holding the real-time current complying with the predetermined current if the current-adjusting unit detects that the real-time current of the OLED panel provided by a power circuit is lower than the predetermined current when the test image is displayed;
• and
• a normal image signal input terminal for inputting a normal image signal,
• wherein the selection unit selects to transmit the normal image signal upon receiving the normal image signal, and the OLED panel displays a normal image according to the normal image signal from the timing control unit and the hold real-time current complying with the predetermined current provided by the current-adjusting unit.