PIXEL DRIVING CIRCUIT OF DISPLAY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a pixel driving circuit capable of accurately controlling light emission efficiency and evading color display errors.

SOLUTION: The pixel driving circuit for driving a light emitting element in a display device is provided. The display device has a 1st input terminal and a 2nd input terminal. The pixel driving circuit is provided with a 1st switch circuit, a 2nd switch circuit and a storage circuit. The 1st switch circuit is connected to the 1st and 2nd input terminals and the 2nd switch circuit is connected to the light emitting element. The storage circuit is connected to the 1st and 2nd switch circuits. The 1st switch circuit stores one sort of voltage in the storage circuit in accordance with the status changes of the 1st and 2nd input terminals and obtains a fixed current on the basis of the voltage. The 2nd switch circuit controls the fixed current allowed to flow into the light emitting element.

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