Patent ID: 9153169
Filing Date: 2015-10-06
Classification: G09G

Abstract:
1. An image display apparatus comprising: a plurality of pixel circuits arranged in a matrix configuration within a pixel array section, at least one of the pixel circuits including a sampling transistor, a drive transistor, a holding capacitor, and a light emitting device; and a drive section configured to drive the pixel array section, the drive section being configured to carry out a sequential scanning operation on scan lines, with the drive section providing a predetermined reference potential and a video signal on signal lines according to the sequential scanning operation, wherein the sampling transistor is connected to one of the signal lines to selectively provide the video signal and the predetermined reference potential to the holding capacitor, the drive transistor includes a gate electrode, a first current electrode and a second current electrode, the gate electrode being coupled to the holding capacitor, the first current electrode being coupled to a power-supply line and the second current electrode being coupled to the light emitting device, the sampling transistor enters a turned-on state in accordance with a control signal supplied by one of the scan lines to sample the video signal into the signal holding capacitor, the drive transistor supplies the light emitting device with a driving current having a magnitude according to the video signal held by the signal holding capacitor, the sampling transistor provides the predetermined reference potential to cause a transition from a light emission period to a non-light emission period, the sampling transistor is in a turned-on state during a time period wherein a threshold voltage of the drive transistor is stored in the signal holding capacitor, when the video signal is set at a white level, the predetermined reference potential causes the drive transistor to be put in a state of a maximum reverse bias, and when the video signal is set at a black level, the predetermined reference potential causes drive transistor is put in a state of a minimum reverse bias.