Pixel array, driving method and organic light emitting display panel

A driving method of a pixel array, wherein the pixel array comprises a plurality of pixel driving circuits arranged in a matrix form with N rows and M columns, both N and M are positive integers greater than or equal to 2, wherein the pixel driving circuit in the Nth row comprises:

• a first transistor, configured to transmit a data signal voltage in response to a Nth-row scanning line signal;
• a second transistor, configured to generate a driving current according to the data signal voltage transmitted by the first transistor;
• a third transistor, configured to detect a deviation of a threshold voltage of the second transistor and perform a self-compensation on the deviation;
• a fourth transistor, configured to transmit a first power voltage to the second transistor in response to a Nth-row light emitting line signal;
• a fifth transistor, configured to transmit the driving current generated by the second transistor to a light emitting element in response to the Nth-row light emitting line signal, wherein the light emitting element is configured to emit a light corresponding to the driving current;
• a sixth transistor, configured to transmit a signal with a first potential to the light emitting element in response to the Nth-row scanning line signal;
• a seventh transistor, configured to transmit a signal with a second potential to a gate of the second transistor in response to a (N−1)th-row scanning line signal, wherein the second potential is greater than the first potential in the same pixel driving circuit;
• and
• a first capacitor, configured to store the data signal voltage transmitted to the second transistor;
• wherein the driving method of the pixel array comprises:
• at an initialization phase, the seventh transistor is turned on in response to the (N−1)th-row scanning line signal, and the signal with the second potential is transmitted to the gate of the second transistor through the seventh transistor and a sixth transistor in the pixel driving circuit in the (N−1)th row in the same column;
• at a data writing phase, the first transistor, the third transistor and the sixth transistor are turned on in response to the Nth-row scanning line signal, the data signal voltage is transmitted to the gate of the second transistor through the first transistor and the third transistor, and the signal with the first potential is transmitted to the light emitting element through the sixth transistor;
• and
• at a light emitting phase, both the fourth transistor and the fifth transistor are turned on in response to the Nth-row light emitting line signal, and the driving current generated in response to the data signal voltage exerted on the second transistor is provided to the light emitting element by the fifth transistor, so that the light emitting element emits a light.

An organic light emitting display panel, comprising a pixel array, wherein the pixel array comprises a plurality of pixel driving circuits arranged in a matrix form with N rows and M columns, wherein both N and M are positive integers greater than or equal to 2;

• wherein the pixel driving circuit in the Nth row comprises:
• a first transistor, configured to transmit a data signal voltage in response to a Nth-row scanning line signal;
• a second transistor, configured to generate a driving current according to the data signal voltage transmitted by the first transistor;
• a third transistor, configured to detect a deviation of a threshold voltage of the second transistor and perform a self-compensation on the deviation;
• a fourth transistor, configured to transmit a first power voltage to the second transistor in response to a Nth-row light emitting line signal;
• a fifth transistor, configured to transmit the driving current generated by the second transistor to a light emitting element in response to the Nth-row light emitting line signal, wherein the light emitting element is configured to emit a light corresponding to the driving current;
• a sixth transistor, configured to transmit a signal with a first potential to the light emitting element in response to the Nth-row scanning line signal;
• a seventh transistor, configured to transmit a signal with a second potential to the gate of the second transistor in response to a (N−1)th-row scanning line signal, wherein the second potential is greater than the first potential in the same pixel driving circuit;
• and
• a first capacitor, configured to store the data signal voltage transmitted to the second transistor.