Current supply circuit and display apparatus including the same

Details Current supply circuit and display apparatus including the same Current supply circuit and display apparatus including the same

2006-07-18

2006-07-18

Wu, Xiao (Department: 2674)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S076000

Reexamination Certificate

active

07079094

ABSTRACT:
In a compensation mode executed before a supply mode, a current supply circuit for supplying a data current according to display luminance to a current-driven light emitting device allows a reference current to pass through a drive transistor for supplying the data current to a data line in the supply mode. The voltage of a node connected to the gate of the drive transistor at this time is held by a voltage holding capacitor. In the supply mode, the voltage of the node changes according to a data voltage. The data voltage is set according to the difference between the data current to be supplied and the reference current.

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*Akira Yumoto et al., “Pixel-Driving Methods for Large-Sized Poly-Si AM-OLED Displays,” Asia Display/IDW 2001, pp. 1395-1398.

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