| 摘要 |
An OLED device is provided to prevent the degradation of OLED elements by applying a reverse bias voltage to the OLED elements using a non-light emitting period of the OLED elements. An OLED(Organic Light Emitting Display) device includes pixels. Each of the pixels includes a first switching element(SW_TR1), a driving transistor(DR_TR), a storage element(C), an OLED element, an initial switching element(SW_TR5), and a reverse bias apply switching element(SW_TR6). The first switching element delivers a data signal from a data line in response to a scan signal from a scan line. The driving transistor, which is connected to the first switching element, controls a driving current from a first power line. The storage element is connected between the driving transistor and the first power line. The OLED element(OLED), which is connected between the driving transistor and a second power line, displays images by the driving current controlled by the driving transistor. The initial switching element, which is connected between the storage element and an initial power line, initializes the storage element. The reverse bias apply switching element, which is connected between the second power line and the initial power line, applies a reverse bias voltage to the OLED element.
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