Display apparatus and driving controlling method
View Patent ↗Disclosed herein is a display apparatus, including, a pixel array section including a plurality of pixels disposed in rows and columns, a number of power supply lines equal to the number of the rows of the pixels, each of the power supply lines being wired commonly to those of the pixels which are juxtaposed in a direction of a row, and a power supplying section adapted to supply a predetermined power supply potential to the pixels in the rows through the power supply lines.
1. A display apparatus, comprising:
a pixel array section including a plurality of pixels disposed in rows and columns;
a number of power supply lines equal to the number of the rows of the pixels, each of said power supply lines being wired commonly to those of said pixels which are juxtaposed in a direction of a row; and
a power supplying section adapted to supply a predetermined power supply potential to said pixels in the rows through said power supply lines;
each of said pixels including
a light emitting element having a diode characteristic and adapted to emit light in response to driving current,
a sampling transistor adapted to sample an image signal,
a driving transistor adapted to supply the driving current to said light emitting element,
an accumulating capacitor connected between an anode of said light emitting element and a gate of said driving transistor and adapted to retain a predetermined potential, and
an auxiliary capacitor connected between the anode of said light emitting element and the power supply line for an adjacent pixel positioned adjacent the pixel in a direction of a column and adapted to retain a predetermined potential;
said power supplying section temporarily raising, during mobility correction of the pixel, the power supply potential of the power supply line for the adjacent pixel to which said auxiliary capacitor is connected.
2. The display apparatus according to claim 1 , wherein said power supplying section starts a writing operation of a signal potential of the image signal into said accumulating capacitor and a mobility correction operation simultaneously.
3. The display apparatus according to claim 1 , wherein said power supplying section temporarily raises, during the mobility correction after the writing of the signal potential of the image signal into said accumulating capacitor ends, the power supply potential of the power supply line for the adjacent pixel to which said auxiliary capacitor is connected.
4. The display apparatus according to claim 1 , wherein the adjacent pixel positioned adjacent the pixel in the direction of a column is a pixel positioned at a preceding stage in an order of line-sequential scanning.
5. A driving controlling method for a display apparatus which includes a pixel array section including a plurality of pixels disposed in rows and columns, a number of power supply lines equal to the number of the rows of the pixels, each of the power supply lines being wired commonly to those of the pixels which are juxtaposed in a direction of a row, and a power supplying section adapted to supply a predetermined power supply potential to the pixels in the rows through the power supply lines and wherein each of the pixels including a light emitting element having a diode characteristic and adapted to emit light in response to driving current, a sampling transistor adapted to sample an image signal, a driving transistor adapted to supply the driving current to the light emitting element, an accumulating capacitor connected between an anode of the light emitting element and a gate of the driving transistor and adapted to retain a predetermined potential, and an auxiliary capacitor connected between the anode of the light emitting element and the power supply line for an adjacent pixel positioned adjacent the pixel in a direction of a column and adapted to retain a predetermined potential, the method comprising:
a step executed by the power supplying section of temporarily raising, during mobility correction of the pixel, the power supply potential of the power supply line for the adjacent pixel to which the auxiliary capacitor is connected.
6. A pixel circuit for a pixel array having pixels disposed in a row direction and a column direction, the pixel circuit comprising:
a light emitting element having an anode and configured to emit light in response to a driving current;
a sampling transistor configured to sample an image signal;
a driving transistor configured to receive a power supply potential from a power supply line, and to supply the driving current to the light emitting element;
a first capacitor connected between the anode of the light emitting element and a gate of the driving transistor and configured to retain a signal potential corresponding to the image signal; and
a second capacitor having a first terminal connected to the anode of the light emitting element and a second terminal connected to a second power supply line for another pixel circuit from a separate row of pixels that is adjacent to the pixel circuit in the column direction,
wherein during a correction operation for a characteristic of the driving transistor, the second terminal of the second capacitor receives, from the second power supply line, a potential that is greater than the power supply potential.
7. The pixel circuit according to claim 6 , wherein the correction operation occurs simultaneously with a writing operation of the signal potential into the first capacitor.
8. The pixel circuit according to claim 6 , wherein the correction operation occurs after a writing operation of the signal potential into the first capacitor.
9. The pixel circuit according to claim 6 , wherein the separate row of pixels is from a preceding stage in an order of line-sequential scanning.
10. The pixel circuit according to claim 6 , wherein the correction operation executes a mobility correction for the driving transistor.
11. A display device comprising the pixel circuit according to claim 6 .
12. An electronic apparatus comprising the display device according to claim 11 .