Drive circuit and drive method of light emitting display apparatus
AssigneeCanon Kabushiki Kaisha
InventorsHisae Shimizu, Katsumi Abe
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AssigneeCanon Kabushiki Kaisha
InventorsHisae Shimizu, Katsumi Abe
Estimating the term…
A drive circuit for a light emitting display apparatus including a pixel circuit having a light emitting device for emitting a light having brightness determined based on supplied current and a drive transistor for supplying the current to the light emitting device, comprises a threshold value correction circuit converting a second signal including a threshold voltage of the drive transistor and a data voltage, the second signal being output from the drive transistor when a first signal including the data voltage is input into the control electrode of the drive transistor, into a third signal including the threshold voltage of an inverted polarity and the data voltage or a voltage corresponding to the data voltage, to output the converted third signal to the pixel circuit. The pixel circuit includes a switch for supplying the third signal to the control electrode of the drive transistor.
A drive circuit for a light emitting display apparatus including a pixel circuit having a light emitting device for emitting a light having brightness determined based on a supplied current, a drive transistor for supplying the current to the light emitting device, a first to a fifth switches, and a capacitor, and a threshold value correction circuit for correcting a threshold value of the drive transistor of the pixel circuit,
Dependencies are inferred from the claim text.