OLED Display Device and Control Method Thereof

An OLED display device, which comprises:

• a display screen, a sensor and a timing controller, wherein the display screen being configured to display image, the sensor being configured to inspect decayed signal of the display screen when displaying;
• wherein the timing controller comprising a detection unit, an external image receiving unit, a test image generation unit, a selection unit, a data compensation unit and image control unit;
• wherein the detection unit being configured to provide command for generating test image;
• the external image receiving unit being configured to receive external image;
• the test image generation unit being configured to generate test image according to the command for generating test image;
• the selection unit being configured to select test image input when receiving command for generating test image, or to select external image input when not receiving command for generating test image, and then to transmit the input test image or external image to the image control unit;
• the image control unit being configured to transmit test image to the display screen for detecting decay of display screen when inputting test image;
• and
• the data compensation unit being configured to obtain decayed signal corresponding to test image detected by the sensor and to generate compensation signal to transmit to the image control unit according to the decayed signal;
• when the image control unit inputting external image, the external image being compensated according to the compensation signal so that the external image able to display normally in the display screen;
• wherein the detection unit comprising a power-on detection unit, the power-on detection unit being configured to provide command for generating test image when the OLED display device turned on;
• the decayed signal being a voltage signal or a current signal, the data compensation unit storing in advance standard voltage signal or standard current signal corresponding to the test image before inputting to display screen, then after the test image inputted to display screen, using the sensor to detect the decayed voltage signal or decayed current signal corresponding to the test image, and determining the value of compensation signal according to the difference between the standard voltage signal and decayed voltage signal or the difference between the standard current signal and decayed current signal.