OLED AC DRIVING CIRCUIT, DRIVING METHOD AND DISPLAY DEVICE
1 Assignment
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Accused Products
Abstract
An OLED AC driving circuit, a driving method and a display device are disclosed in the present disclosure. The OLED AC driving circuit includes a light-emitting control unit, a charging unit, a driving unit, a first storage unit, a second storage unit, a first light-emitting unit, a second light-emitting unit, a first voltage control unit and a second voltage control unit. The present disclosure employs the first light-emitting unit and the second light-emitting unit which are connected reversely with each other to make the first light-emitting unit and the second light-emitting unit emit light alternately during two adjacent frames. In one frame, only one light-emitting unit emits light for display while the other one is reversely biased. When the next frame comes, the two units exchange their operating states. The AC driving of the light-emitting units is realized, thus improving the energy utilization efficiency. The cause of the aging of the light-emitting unit is removed completely, and the lifespan of the light-emitting unit is extended largely. The influence of the internal resistance of the lines on the light-emitting current is eliminated, and the display quality of pictures is improved.
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Citations
30 Claims
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1-12. -12. (canceled)
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13. An OLED AC driving circuit comprising a light-emitting control unit, a charging unit, a driving unit, a first storage unit, a second storage unit, a first light-emitting unit, a second light-emitting unit, a first voltage control unit and a second voltage control unit, wherein
the light-emitting control unit is connected to the driving unit, the second storage unit and the first voltage control unit, and is configured to control the first light-emitting unit or the second light-emitting unit under the control of a light-emitting control signal; -
the charging unit is connected to the driving unit, the first storage unit, the second storage unit, the first light-emitting unit, the second light-emitting unit and the second voltage control unit, and is configured to charge the first storage unit or the second storage unit under the control of a scan signal and a data signal; the driving unit is connected to the first storage unit, the second storage unit, the first light-emitting unit and the second light-emitting unit, and is configured to drive the first light-emitting unit or the second light-emitting unit to emit light; the first storage unit is connected to the first light-emitting unit, the second light-emitting unit, the driving unit and the charging unit, and is configured to store the data signal or turn on the driving unit; the second storage unit is connected to the first voltage control unit and the driving unit, and is configured to store the data signal or turn on the driving unit; the first light-emitting unit is connected to the second voltage control unit, and is configured to emit light under the control of the first voltage control unit, the second voltage control unit, the charging unit and the driving unit; the second light-emitting unit is connected to the second voltage control unit, and is configured to emit light under the control of the first voltage control unit, the second voltage control unit, the charging unit and the driving unit; the first voltage control unit is connected to the light-emitting control unit and the second storage unit, and is configured to supply power to the second storage unit and the first light-emitting unit; and the second voltage control unit is connected to the charging unit, the first light-emitting unit and the second light-emitting unit, and is configured to supply power to the first storage unit and the second light-emitting unit. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification