Display apparatus, method of driving a display, and electronic device

摘要

In a display apparatus including a switching transistor, a correction voltage for eliminating an effect of a variation in a characteristic of a driving transistor is stored in a storage capacitor. The switching transistor is disposed between one current terminal of the driving transistor and a light emitting element. The switching transistor turns off during the non-light emission period thereby to electrically disconnect the light emitting element from the one current terminal of the driving transistor thereby preventing a leakage current from flowing through the light emitting element during the period in which the correction unit operates, and thus preventing the correction voltage from having an error due to the leakage current.

主权项

1. A display apparatus comprising a plurality of pixels, at least one of the plurality of pixels including:
a sampling transistor; a driving transistor; a light emitting element; a first storage capacitor; a first switching transistor; and a second switching transistor, wherein the sampling transistor includes a first terminal connected to a data line, a second terminal connected to a first terminal of the first storage capacitor, and a control terminal connected to a first scan line, wherein the first switching transistor includes a first terminal connected to a first voltage line, a second terminal connected to a first terminal of the driving transistor, and a control terminal connected to a second scan line, wherein the second switching transistor includes a first terminal connected to a second voltage line, a second terminal connected to a second terminal of the first storage capacitor, and a control terminal connected to a third scan line, wherein the driving transistor includes a first terminal connected to the second terminal of the first switching transistor, a second terminal connected to the second terminal of the first storage capacitor, and a control terminal connected to the first terminal of the first storage capacitor, wherein, in a first period, the second switching transistor is configured to apply a first predetermined voltage from the second voltage line to the second terminal of the first storage capacitor, wherein, in a second period after the first period, the sampling transistor is configured to apply a second predetermined voltage from the data line to the first terminal of the first storage capacitor, and the driving transistor is configured to apply a voltage from the first voltage line via the first switching transistor to the second terminal of the first storage capacitor, wherein, in a third period after the second period, the sampling transistor is configured to apply a data signal from the data line to the first terminal of the first storage capacitor, and wherein, in a fourth period after the third period, the driving transistor is configured to supply a driving current from the first voltage line via the first switching transistor to light emitting element.