Pixel compensating circuit and driving method thereof, array substrate and display device

A pixel compensating circuit for an active-matrix organic light-emitting diode, comprising:

• a reset circuit, connected with a reset signal line and a driving circuit, and configured to reset the driving circuit according to a reset signal inputted from the reset signal line;
• the driving circuit, configured to output a driving current to drive a display apparatus to emit light and display;
• a compensating circuit, connected with a signal control line, a data line and the driving circuit, and configured to compensate a threshold voltage for the driving circuit and write data into the driving circuit under control of a signal control signal inputted from the signal control line;
• and
• a luminance control circuit, connected with a luminance control line, the driving circuit and an anode of the display apparatus, and configured to control the driving circuit to drive the display apparatus to emit light and display according to a luminance control signal inputted from the luminance control line,
• wherein the driving circuit comprises:
• a first transistor, a control electrode of the first transistor connected with a first node, a first electrode of the first transistor connected with a first voltage end, and a second electrode of the first transistor connected with the compensating circuit and the luminance control circuit;
• and
• a capacitor, two ends of the capacitor being the first node and the second node respectively, and the second node connected with the reset circuit, the compensating circuit and the luminance control circuit;
• and
• wherein the compensating circuit comprises:
• a second transistor, a control electrode of the second transistor connected with the signal control line, a first electrode of the second transistor connected with the second electrode of the first transistor, and a second electrode of the second transistor connected with the first node;
• and
• a fourth transistor, a control electrode of the fourth transistor connected with the signal control line, a first electrode of the fourth transistor connected with the data line, and a second electrode of the fourth transistor connected with the second node.

A pixel compensating circuit for an active-matrix organic light-emitting diode, comprising:

• a reset circuit, connected with a reset signal line and a driving circuit, and configured to reset the driving circuit according to a reset signal inputted from the reset signal line;
• the driving circuit, configured to output a driving current to drive a display apparatus to emit light and display;
• a compensating circuit, connected with a signal control line, a data line and the driving circuit, and configured to compensate a threshold voltage for the driving circuit and write data into the driving circuit under control of a signal control signal inputted from the signal control line;
• and
• a luminance control circuit, connected with a luminance control line, the driving circuit and an anode of the display apparatus, and configured to control the driving circuit to drive the display apparatus to emit light and display according to a luminance control signal inputted from the luminance control line,
• wherein the driving circuit comprises:
• a first transistor, a control electrode of the first transistor connected with a first node, a first electrode of the first transistor connected with a first voltage end, and a second electrode of the first transistor connected with the compensating circuit and the luminance control circuit;
• and
• a capacitor, two ends of the capacitor being the first node and the second node respectively, and the second node connected with the reset circuit, the compensating circuit and the luminance control circuit;
• and
• wherein the luminance control circuit comprises:
• a fifth transistor, a control electrode of the fifth transistor connected with the luminance control line, a first electrode of the fifth transistor connected with a reference voltage end, and a second electrode of the fifth transistor connected with the second node;
• and
• a sixth transistor, a control electrode of the sixth transistor connected with the luminance control line, a first electrode of the sixth transistor connected with the second electrode of the first transistor, and a second electrode of the sixth transistor connected with the anode of the display apparatus.