Invention Grant
US08094145B2 Driving method for organic electroluminescence light emitting section 有权
有机电致发光发光部分的驱动方法

Driving method for organic electroluminescence light emitting section
Abstract:
A driving method for an organic EL light emitting section is provided which achieves optimization of a mobility correction process for a transistor of a driving circuit in response to luminance. In a driving method for an organic EL light emitting section wherein a driving circuit 11 formed from a driving transistor TDrv, an image signal writing transistor TSig and a capacitor section C1 having a pair of electrodes (the opposite ends corresponding to a first node ND1 and a second node ND2) is used to carry out a pre-process [TP (5)1], a threshold voltage cancellation process [TP (5)2] and a writing process [TP (5)6], a variable correction voltage VCor which relies upon the image signal voltage VSig is applied to the first node ND1 and a voltage which is higher than a potential of the second node ND2 in the threshold voltage cancellation process is applied to the drain electrode of the driving transistor TDrv, between the threshold voltage cancellation process and the writing process, to raise the potential of the second node ND2 in response to a characteristic of the driving transistor TDrv.
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