Patent ID: 8633875
Filing Date: 2014-01-21
Classification: G09G,H01L

Abstract:
1. An electroluminescent display panel comprising: a pixel circuit for an active matrix driving system, the pixel circuit comprises a sampling transistor and a driving transistor, the sampling transistor is configured to control writing of an image signal to a storage capacitor, the driving transistor is configured to drive an organic EL element according to the image signal; the pixel circuit is configured to correct a mobility of the driving transistor; the sampling transistor is a thin-film transistor that comprises a channel layer and main electrodes, wherein a portion of a metal wiring material above the channel layer is configured to shield a channel region of the thin-film transistor; wherein a voltage of the portion of the pattern of the metal wiring material is established for which a maximum voltage applied across the main electrodes is set below a cutoff voltage, and the voltage is established by taking into consideration a threshold voltage of the sampling transistor that changes with time.